Absorbent articles having cuffs with skin care composition disposed thereon

Absorbent article with frills equipped with skin care composition

This is a partial continuation application for application number 08/766,386 filed on December 3, 1996; and a partial continuation application for application number 08/884,069 filed on June 27, 1997. Application No. 08/884,069 is the application No. 08/345,159 filed on November 28, 1994, which is now a continuation of US Patent No. 5,643,588; and the application filed on August 8, 1997 Case No. 08/908,852 part of the continuation application.

<u>Technical scope</u>

The present invention relates to absorbent articles with ruffles, including elastic leg ruffles, such as diapers, training pants, adult incontinence products, sanitary napkins, women's clothing, and the like. In particular, the present invention relates to the frills, or the frills or surface layers of the wearer's skin that can be transferred to the wearer's skin through normal contact and/or the wearer's actions and/or body heat, and the absorption of the skin care composition is arranged object. The skin care composition published in the present invention is selected to maintain and/or improve the wearers skin health condition during transfer during use, for example, to provide skin protection barriers or therapeutic benefits; In the area of skin contact, the abrasion between the frill and the skin is minimized, resulting in less erythema or skin irritation; improving the removal of feces on the skin, or improving the barrier properties of the frill.

<u>Background of the invention</u>

The main function of absorbent articles such as disposable diapers and incontinence shorts or underwear is to absorb and contain body secretions. Such items are therefore intended to prevent body secretions from soiling, wetting, or contaminating clothing or other items that come in contact with the wearer, such as bedding. The most common failure mode of this kind of product is that body secretions cannot be absorbed into the article immediately, and the absorbent article cannot maintain a good fit with the wearer, so that a gap is created and the secretion can leak out of the article. The body secretions leak from the gap between the object and the wearers leg or waist to adjacent clothing. For example, urine tends to accumulate on the surface layer so that the urine moves to the gap between the article and the wearer, comes into contact with clothing or other articles, and is absorbed by these articles. In addition, the thin and soft excretion materials that are not easily absorbed by the absorbent article tend to "float" on the surface in contact with the body, and gradually pass through the gap between the article and the leg or waist of the wearer.

Modern disposable diapers have a surface layer, a back layer, an absorbent core, and one or more frills configured to contact the leg and/or waist of the wearer, typically elastic frills. These elastic frills have barriers between the edges of the diaper and the clothes that are contacted by the elastic frills, and generally in addition, they provide cushioning to the legs or waist of the wearer to protect the legs or waist. The seal is maintained and the gap is minimized, so it is generally proven to be effective in preventing the diaper filled with fluid from being sucked in and overflowing to the clothing that is in contact with the edge of the diaper. However, since the force generated by the elastic element is concentrated in a narrow area, resulting in high local pressure, these elastic frills have an increased tendency to leave creases and marks on the wearer's skin. These effects on the skin are particularly serious for products worn by young children and the elderly with incontinence due to their skin's softness and sensitivity to even slight pressure or friction. These effects on the skin are aggravated by the impermeability of the skin caused by other products. The closure of the skin due to the diaper has the potential to cause excessive skin hydration. As a result, over-hydrated skin is more susceptible to abrasion damage caused by normal wearer movement and friction caused by contact with elastic frills. It is generally known that over-hydrated skin is more susceptible to skin conditions, including diaper rash, skin redness, heat rash, abrasions, pressure spots, and loss of skin barriers. Abrasions and excessive hydration of the skin will reduce the barrier efficiency and further increase the increase in diaper rash. (twenty one CFR333.503 defines diaper rash as "inflammation of the skin in the diaper-packing area (perineum, buttocks, lower abdomen, and inner thighs) caused by one or more of the following factors: moisture, airtightness, friction, and Continuous contact of urine or excrement or both, or mechanical or chemical irritation"). In order to focus on the concerns of skin conditions related to wearing diapers and other absorbent articles, caregivers or wearers usually treat the buttocks, genitals, anus and/or other Use skin care and/or therapeutic products in the area. This procedure usually involves the caregiver applying skin care products to their hands and then applying them to the wearer's skin. In order to eliminate this uneconomical, cumbersome, time-consuming, and easily forgotten procedure, an attempt was made to prepare an absorbent article containing skin care substances on the surface of the article.

One substance that has been used on diaper products to impart a soothing, protective coating is mineral oil. Mineral oil (also known as petroleum jelly) is a mixture of various liquid hydrocarbons obtained by distilling the high boiling point (ie 300-390°C) part of petroleum. Mineral oil is liquid at ambient temperature, ie 20-25°C. Therefore, when mineral oil is used in diapers, it is quite liquid and easy to move. Since mineral oil is a fluid at ambient temperature and can flow freely, it does not remain on the surface of the diaper, but tends to move into the inside of the diaper. Therefore, a considerable amount of mineral oil must be used on the diaper to provide the desired therapeutic or protective coating benefits. This not only increases the cost of these treated diapers, but also has other adverse effects, including reducing the absorption capacity of the underlying absorbent core material.

Even if its value is not increased, the movement tendency of the used mineral oil still has other adverse effects. For example, the applied mineral oil can be transferred into and through the packaging or wrapping material of the processed diaper product. In this way, barrier packaging or wrapping films will be required to avoid contamination or other leakage of mineral oil from the diaper product.

US Patent No. 3,489,148 to Duncan et al. teaches a baby diaper including a hydrophobic and oleophobic surface layer, in which a part of the surface layer is coated with a discontinuous film of oily material. The main disadvantage of the diaper published in the reference material of Duncan et al. is that the hydrophobic and oleophobic surface layer is slow to promote the transfer of urine to the absorbent core material underneath.

In addition to the movement problems encountered by placing the liquid composition on the surface layer, the prior art has not been aware of the skin care damage caused by the use of frills, nor has it been able to treat the frills so that the skin care composition disposed on it can be transferred to the skin in an effective amount. Provides skin care benefits for the wearer's skin. The prior art has also failed to realize that treating the surface layer of an object alone may not necessarily transfer the composition to all important areas of the wearer's skin.

Therefore, it would be desirable to provide an absorbent article with frills in which a skin care composition is disposed on the frills to provide improved skin care benefits, especially in areas of the skin that are in contact with the wearer during use. The skin care composition must be transferable to the wearer's skin to provide these skin benefits without inhibiting the effect of frills in the product.

Therefore, it would be desirable to provide a diaper product or other absorbent article having one or more frills disposed thereon with a skin care composition, wherein the skin care composition: (1) has the desired therapeutic or protective coating benefits; and/ Or (2) does not require a relatively high amount of skin care composition that is liquid (such as mineral oil) at room temperature; and/or (3) does not adversely affect the absorbability of the diaper product; and/or (4) It is not necessary to need special wrapping or barrier materials for packaging.

Therefore, one object of the present invention is to provide a diaper or absorbent article with one or more frills disposed on the skin care composition, wherein at least a part of the composition can be transferred to the wearer's skin to provide the desired skin care benefits Including less skin irritation and less erythema, the therapeutic benefits include reducing skin redness and/or diaper rash, and/or reducing the adhesion of stool to the skin, thereby improving the ease of stool cleaning. Another object of the present invention is to improve the containment/barrier function of the frill when using a hydrophobic skin care composition.

These and other objectives are obtained by using the present invention, as will be more clearly understood by reading the following disclosure.

<u>Summary of the invention</u>

The present invention relates to absorbent articles having one or more frills, such as disposable diapers, in which a skin care composition is disposed (applied or moved to) on the body surface of the frills. The key point of the skin care composition that can be effectively used here is that it can be easily transferred to the wearer's skin by normal contact, wearer's movement, and/or body heat. When transferred to the skin, the skin care composition provides the desired therapeutic and/or protective coating benefits to produce less erythema, skin redness, diaper rash, skin irritation, and/or reduce the adhesion of feces to the wearer Skin, thus improving the ease of cleaning stool. In the case of using a hydrophobic skin care composition, the skin care composition described here can also increase the containment/barrier properties of the frill, thereby improving its leakage protection. This hydrophobic skin care composition particularly uses non-woven materials to make the frill design soft, and provides another method to achieve the desired containment/barrier properties. This can lead to lower material costs.

The term "frills" as used herein includes leg frills, including barrier frills, pad frills, combinations and deformations thereof; lateral barriers and envelopes/spacers; side strips; and waist frills including waist flaps , Waistbands, waistcaps, and a single waist cap/waistband; and a combination of all or some of these frills.

The skin care composition described herein, when transferred to the wearer's skin, provides important protection and/or therapeutic benefits, including reducing skin redness and/or diaper rash. The skin care composition can also minimize the friction between the frill and the skin in the area where the frill is in contact with the wearer's skin, resulting in less erythema and/or skin irritation. In addition, the protective coating on the wearer's skin can reduce the adhesion of feces to the skin, thereby improving the ease of cleaning the feces.

As will be discussed later, the skin care composition of the present invention can be effectively used to have a certain melting distribution, so that it is quite difficult to move at room temperature and stays on the frills, and can be transferred to the wearer at body temperature. And it is still not completely liquid under extreme storage conditions. In this specific example, less skin care composition is needed to impart the desired skin care benefits. In addition, when packaging the processed product of the present invention, special barriers or wrapping materials may not be required.

In a preferred embodiment, the absorbent article of the present invention will include a skin care composition disposed on (coated or movable to) the hem and surface layer. Applicants have discovered that this preferred article increases the transfer of the composition to the wearer's skin, thereby increasing the therapeutic and/or protective benefits discussed herein. In this connection, increasing the transfer will be achieved by increasing the skin coverage (ie skin area) and/or the amount of the composition transferred to a certain skin area.

<u>Detailed description of the invention</u>

The term "comprising" as used herein means that various components, components, or steps can be used in common to implement the present invention. Therefore, the term "comprising" encompasses the stricter terms "consisting essentially of" and "consisting of".

The term "skin care composition" as used herein refers to any composition that includes one or more agents that can provide therapeutic and/or skin care benefits when transferred from the article to the wearer's skin. Representative materials are discussed in detail below.

Unless otherwise specified, all percentages, ratios and ratios used herein are by weight.

A.<u>Absorbing objects</u>

As used herein, the term "absorbent article" refers to articles that absorb and contain body secretions, and more specifically, refers to articles that are placed against the wearer's skin to absorb and contain various secretions discharged from the body . The term "disposable" used here means that the absorbent article is not intended to be recovered or reused as an absorbent article after being used for one time. Examples of disposable absorbent articles include feminine hygiene products such as sanitary pants, sanitary napkins, and sanitary pads; diapers; incontinence products such as shorts or underwear; diaper clamps; diaper inserts; pull-on diapers And training pants and so on.

Disposable absorbent articles typically include a base that includes an outer covering layer. The outer covering layer includes a liquid-permeable surface layer and a liquid-impermeable backing layer bonded to the surface layer, and an absorbent core contained in the outer covering layer. The core material is arranged between the surface layer and the back layer. Disposable absorbent articles and their components, including the surface layer, back layer, absorbent core material, and any individual layers of these components have two main surfaces (the first surface and the second surface) generally called the body surface and the clothing surface ). As used herein, "body surface" (also called body-contacting surface or skin-contacting surface) refers to the surface of an object or component that is intended to be worn toward or adjacent to the wearer's body, and "clothing surface" refers to the surface When putting on the disposable absorbent article, keep it away from the wearer and face the opposite side of the wearer's clothing.

The following description generally discusses absorbent core, surface, and backing materials that can be effectively used in disposable absorbent articles. It should be understood that this general description is applicable to these components of the specific absorbent article shown in FIGS. 1-4 and further described below in addition to the other disposable absorbent articles outlined in the text.

Generally speaking, the absorbent core material can absorb or retain fluids (e.g., menstruation, urine, and/or other body secretions). The absorbent core is preferably compressible, compliant, and non-irritating to the wearer's skin. Absorbent core materials can be manufactured in a variety of sizes and shapes (for example, rectangular, oval, hourglass, "T" shape, dog bone shape, symmetrical, asymmetrical, etc.). In addition to the absorbent composite material of the present invention, the absorbent core material may include any of a wide variety of liquid absorbent materials generally used for absorbent articles, such as shredded wood pulp commonly referred to as airfelt. Examples of other suitable absorbent materials for use in absorbent cores include shrunken cellulose padding; melt blown polymers, including coform; chemically strengthened, modified or cross-linked cellulose fibers; synthetic fibers Such as crimped polyester fibers; mud moss; paper towels, including paper towel rolls and paper towel laminates; absorbent foam; absorbent sponges; superabsorbent polymers; absorbent gelling substances; or any equivalent material or material Combinations, or mixtures of these materials.

Shape and configuration of the absorbent core may have a thickness of different regions (e.g., the absorbent core may have varying and / or with a profile that is thicker in the center; hydrophilic gradients; gradients of the absorbent composite, superabsorbent gradients e.g. ; Lower average density and lower average basis weight areas, such as absorption areas; or it may include one or more layers or structures). However, the total absorption capacity of the absorbent core material should be compatible with the designed loading capacity and intended use of the absorbent article. In addition, the size and absorption capacity of the absorbent core material can be changed to adapt to different uses, such as diapers, incontinence pads, training pants, sanitary pads, general sanitary napkins, and night sanitary napkins, as well as those from infants to adults. Wearer.

The absorbent core may include other absorbent components commonly used in absorbent articles, such as a dusting layer, a wetting or absorbing layer (overflow control layer) or a second surface layer to increase the comfort of the wearer.

The surface layer is better to be compliant, soft to the touch, and not irritating to the wearer's skin. In addition, the surface layer is liquid permeable at least in certain areas, so that liquid (such as menstruation and/or urine) can easily penetrate through its thickness. The appropriate surface layer can be made from a wide range of materials, such as woven and non-woven materials (such as fiber non-woven fabrics), including perforated non-woven fabrics; polymeric materials such as perforated formed thermoplastic films, perforated plastic films, and hydroformed thermal Plastic film; porous foam; reticulated foam; reticulated thermoplastic film; and thermoplastic scrims (scrims). Suitable woven and non-woven materials may include natural fibers (e.g., wood or cotton fibers), synthetic fibers (e.g., polymeric fibers such as polyester, polypropylene, or polyethylene fibers), bi-component fibers, or a combination of natural and synthetic fibers. When the surface layer includes a non-woven fabric, the non-woven fabric can be produced by many known techniques. For example, the non-woven fabric can be spunbonded, carded, wet laid, melt blow molded, hydroentangled, wet formed, hydroapertured, combinations of the foregoing, and so on.

The back layer is preferably impervious to liquids (such as menstruation and/or urine) at least in the crotch area of the absorbent article, and is preferably made of a self-plastic film, although other soft liquid impervious materials can also be used. The term "soft" as used herein refers to a material that can conform and will easily conform to the general shape and contour of the human body. The backing layer prevents the secretions absorbed and contained in the absorbent core from wetting objects that come into contact with the absorbent, such as bed sheets, underwear, pajamas and underwear. Therefore, the backing layer may include woven or non-woven materials, polymeric films such as thermoplastic films of polyethylene or polypropylene, or composite materials such as coated non-woven fabrics or coated film non-woven materials. A suitable backing layer is a polyethylene film having a thickness from about 0.012 mm (0.5 mil) to about 0.051 mm (2.0 mil). The example polyethylene film is a product called P18-1401 manufactured by Clopay Corporation in Cincinnati, Russia, and a product called Tredegar film in Terre Haute, Indiana. Film Products) is called XP-39385. The back layer is preferably embossed and/or matted to provide a more cloth-like appearance. In addition, the backing layer can allow vapors to escape from the absorbent core (that is, the backing layer is breathable), while still preventing secretions from passing through the backing layer. (An example of a breathable back layer suitable for this was published in US Patent No. 5,571,096 issued to Dobrin, Davis and Weirich on November 5, 1996, "Absorbent Article Having Breathable Side Panels" , This patent is incorporated into this article for reference). The size of the backing layer is determined by the size of the absorbent core material and the selected exact absorbent design.

The back layer and the surface layer are respectively arranged adjacent to the clothing surface and the body surface of the absorbent core material. The absorbent core material is preferably combined with the surface layer, the back layer, or both by any means, such as the attachment elements well known in the art. However, the specific example of the present invention also envisages the case where all of the absorbent core material is not attached to any one of the surface layer and the back layer, or both.

The back layer and/or the surface layer can be fixed to the absorbent core or to each other by, for example, a uniform continuous layer of adhesive, a patterned layer of adhesive, or an array of separate lines, spirals, or dots of adhesive. An adhesive found to be satisfactory is a product called HL-1258 or H-2031 manufactured by HB Fuller Company in St. Paul, Minnesota. The attachment element is preferably a net-like structure including an open pattern of adhesive filaments, such as US Patent 4,573,986 issued to Minetola et al. on March 4, 1986, which is incorporated herein as a reference. The attachment device of an example of the open pattern net structure of the filament includes several adhesive filaments wound in a spiral pattern, such as described by the device and method shown in the following patent: issued to Sprague on October 7, 1975 , US Patent 3,911,173 by Jr.; US Patent 4,785,996 issued to Zwieker et al. on November 22, 1978; and US Patent 4,842,666 issued to Werenicz on June 27, 1989. Incorporate each of these patents into this article as reference materials. Or the attachment device may include thermal bonding, pressure bonding, ultrasonic bonding, dynamic mechanical bonding, or any other suitable attachment devices known in the art or a combination of these attachment devices.

The preferred disposable absorbent article that can use the "treated frill" of the present invention ("treated frill" is used here to indicate frills with one or more skin care compositions) is a diaper. The term "diaper" as used herein refers to an absorbent article that is generally worn by infants and incontinent individuals around the lower body of the wearer. In other words, the term "diaper" includes infant diapers, training pants, adult incontinence products, and so on. The present invention can also be applied to other types of disposable products, such as sanitary napkins and sanitary pads containing ruffles.

Figure 1 is a preferred embodiment of the diaper 20 of the present invention in its flat and uncontracted state (that is, all the elastic bands that cause contraction are pulled out), and part of the structure is cut to show the structure of the diaper 20 more clearly, and A plan view of the portion of the diaper 20 (body surface) in contact with the wearer facing the viewer. The diaper 20 shown in FIG. 1 has a front waist region 22, a back waist region 24, a bifurcated leg region 26, and a periphery defined by the outer edge of the diaper, wherein the longitudinal edge is marked as 30 and the end edge is marked as 32 . The diaper 20 further has a horizontal centerline labeled 34 and a longitudinal centerline labeled 36. The diaper 20 includes a base, which includes (i) an outer cover layer comprising a liquid-permeable surface layer 38 and a liquid-impermeable back layer 42; and (ii) an absorbent core material 44 with side edges 46; a fastening system to It is preferable to include a pair of belt-tab knots 54 and a landing element 55; each includes a side flap 58 and a pad frill 56 of the flap elastic element 60; and a barrier frill 62 including a barrier frill element 63, this The barrier hemming element 63 has a proximal edge 64, a distal edge 66, and a tip 74; and a spacer such as a spacer elastic element 76 for separating the distal edge 66 from the surface layer. The diaper 20 further includes a closing element 78 for firmly closing the end 74 of each barrier hem 62. Although the components of the diaper can be combined in various well-known forms, the preferred diaper form is generally described in US Patent 4,695,278 issued to Lawson on September 22, 1987, which is incorporated herein as a reference.

FIG. 1 shows a preferred embodiment of the diaper 20, in which the surface layer 38 and the back layer 42 are coextensive, and have a length and a width substantially larger than that of the absorbent core material 44. As shown in FIG. The surface layer 38 is combined with the back layer 42 and is stacked on the back layer 42 to form the periphery of the diaper 20.

The diaper 20 has front waist and back waist regions 22 and 24 extending from the peripheral end edge 32 to the transverse centerline 34 of the diaper 20, respectively. The waist area includes the portion of the diaper 20 that surrounds the waist of the wearer when the belt is worn. The bifurcated leg region 26 is tied to the portion of the diaper 20 between the waist regions, and includes the portion of the diaper 20 that is located between the wearer's legs and covers the wearer's lower body when the belt is worn.

As shown in FIG. 1, the skin care composition 72 is arranged on the hem 62 of each barrier rib. The skin care composition 72 is preferably arranged on the body surface of the barrier frills, so that the skin care composition can be easily transferred to the wearer's skin during use. In the specific example shown, the skin care composition 72 is disposed adjacent to the distal edge 66, preferably at least in the crotch region 26 of the legs. The skin care composition 72 is preferably arranged on the distal edge 66. The barrier hem 62 preferably includes one or more stripes of the skin care composition 72 disposed thereon. In the specific example shown, the skin care composition 72 is only disposed in one section of the barrier rib hem 62. For some skin care compositions, avoid using the skin care composition on the barrier hem of the part adjacent to the end of the spacer elastic element to ensure that there is no better elastic creep caused by the interaction between the skin care composition and the adhesive. As shown in Figure 1, in a preferred embodiment, the skin care composition 72 is not disposed adjacent to the end of the spacer elastic element 76 in the front waist region (although it may not be disposed at the end adjacent to the back waist region. ). (Or an adhesive that is compatible with the skin care composition can be used, so that the arrangement of the skin care composition on the frills is not restricted relative to the end of the spacer elastic element.) As discussed in the text, the skin care composition can be used On the surface of the clothing of the barrier frills, make it "penetrate" the body surface to improve the hydrophobicity of the barrier frills, and arrange it on the body surface to provide skin care benefits. In addition, the skin care composition can be used on other parts of the barrier frills, all barrier frills, spacer elastic elements, or any other components of the barrier frills. The skin care composition can also be arranged in any pattern, including discontinuous or continuous patterns, or in any amount discussed later.

The diaper 20 shown in FIG. 2 has a clothing surface 86 and a body surface 84 opposite to the clothing surface 86. The body surface 84 of the diaper 20 includes the portion of the diaper 20 that is adjacent to the wearer's body when in use (that is, the body surface 84 generally consists of at least a part of the surface layer 38 and other components including components that can be bonded to the surface layer 38 Formed). The clothing surface 86 includes the portion of the diaper 20 that is located away from the wearer's body during use (that is, the clothing surface 86 is generally formed by at least a part of the back layer 42 and other components including components that can be bonded to the back layer 42) .

FIG. 2 is a partial cross-sectional view along the line 2-2 of FIG. 1 and depicting the structure of the diaper in the waist region 24 behind the diaper 20. FIG. (It should be understood that the structure of the diaper in the front waist region 22 is substantially the same as the structure in the back waist region 24.) The absorbent core includes an absorbent layer 48 shown as being completely enclosed by tissue layers 50 and 52. The absorbent core material 44 is disposed between the surface layer 38 and the back layer 42; both the surface layer 38 and the back layer 42 extend beyond the side edges 46 of the absorbent core material 44 to define lateral flaps 58. It is better to fix the side-by-side areas of the surface layer 38 and the back layer 42 together to use flap attachment elements 88 such as adhesives. In a preferred embodiment, the flap elastic element does not extend into the back waist region 24, so that no pad hem is formed in this region. The barrier hem 62 is shown as including an individual element fixed to the surface layer 38-the barrier hem element 63; the proximal edge 64 is formed by fixing the barrier hem element 63 to the surface layer 38 using the proximal fixing element 92. The clothing surface 68 of the barrier hem 62 (also referred to as the inner surface of the barrier hem) is fixed to the body surface 40 by the closure element 78. Therefore, the distal edge 66 is closed. (That is, it is not far away from the body surface 40). It should be noted that no spacer elastic element is provided in this area, since the distal edge 66 is not designed to be far away from the body surface 40 in the waist area. Therefore, in this area, the barrier hem 62 is not open and is not intended to restrict the flow of body secretions. In this particular embodiment, it is preferable that the skin care composition is not arranged on the hem of the barrier wall in the back waist area.

Fig. 3 is a partial cross-sectional view of the diaper structure formed in the bifurcated region 26 along the line 3-3 of Fig. 1 before it is used for the wearer (ie, the diaper 20 is elastically contracted) . The absorbent core 44 includes an absorbent layer 48 shown as being completely enclosed by layers 50 and 52 of paper towels. The absorbent core material 44 is disposed between the surface layer 38 and the back layer 42; both the surface layer 38 and the back layer 42 extend beyond the side edges 46 of the absorbent core material 44 to define lateral flaps 58. It is better to fix the side-by-side areas of the surface layer 38 and the back layer 42 together to use flap attachment elements 88 such as adhesives. The surface layer 38 and the back layer 42 also seal the flap elastic element 60 adjacent to the longitudinal edge 30. The flap elastic element 60 is fixed to the surface layer-back layer forming lateral flap 58, which is preferably fixed by the elastic attachment element 90. The elastically shrinkable cushion hem 56 is thus formed by the lateral flaps 58 and the flap elastic elements 60. The pad hem has a body surface 57 that faces the wearer's skin when the diaper is put on, and a clothing surface 59 opposite to the body surface 57. The barrier hem 62 is shown as being formed by fixing a separate element-the barrier hem element 63 to the surface layer 38, and is preferably fixed to the surface layer between the flap elastic element 60 and the side edge 46 of the absorbent core material 44. The proximal edge 64 of the barrier hem 62 is formed by fixing the barrier hem element 63 to the surface layer 38 using the proximal fixing element 92. The spacing elastic element 76 is enclosed in the channel formed when the end of the barrier hemming element 63 is folded back to itself; the spacing elastic element 76 is fixed in the channel by the elastic attachment element 94. The distal edge 66 of the barrier hem is separated from the body surface 40 by the elastic gathering action of the spacer elastic element 76. The barrier ribs 62 have been shown to limit the containment and containment of body secretions until the diaper 20 is removed from the wearer. The skin care composition 72 is shown in FIG. 3 as being disposed on the body surface 70 of the barrier frill 62 (barrier frill element 63), so that the skin care composition 72 can be transferred to the wearer's skin during use.

The diaper of the present invention can have many well-known forms, among which the absorbent core material is suitable for the present invention. The type of the example roughly illustrates the U.S. Patent 3,860,003 issued to Buell on January 14, 1975; U.S. Patent 5,151,092 issued to Buell et al. on September 29, 1992; U.S. Patent issued spontaneously to Nease et al. on December 3, 1996 5,580,411; U.S. Patent 5,569,232 issued to Roe et al. on October 29, 1996; and U.S. Patent 5,569,234 issued to Buell et al. on October 29, 1996. Incorporate each of these patents into this article as reference materials.

The base of the diaper is shown in the figure as the main part (accommodating combination) containing the diaper. The base at least includes an absorbent core material, and preferably includes an outer covering layer including a surface layer and a back layer. When the absorbent article includes individual clamps and liners, the base generally includes clamps and liners (that is, the base includes one or more material layers to define the clamps, while the liner includes absorbent composite materials such as a surface layer, a back layer, and an absorbent core). For a single absorbent article, the base includes the main structure of the diaper and other parts added to form the composite diaper structure; therefore, the base of the diaper includes the surface layer, the back layer, and the absorbent core material.

It is especially suitable for the surface layer 38 of the diaper 20 to be combed and thermally bonded by a method familiar to those skilled in the fabric art. A satisfactory surface layer for use in the present invention includes fixed-length polyethylene fibers having a denier of about 2.2. The term "staple fiber" as used herein refers to fibers having a length of at least about 15.9 millimeters (0.625 inches). The surface layer preferably has a basis weight of from about 14 to about 25 grams per square meter. A suitable surface layer is a product named P-8 manufactured by Veratec Inc., a division of International Paper Company in Walpole, Massachusetts. Another preferred surface layer is a spunbonded nonwoven fabric with a basis weight of 22 grams per square meter, such as a product named 9694 from Fiberweb North America, Inc., Simpsonville, South Carolina.

The surface layer 38 of the diaper 20 is preferably made of a hydrophilic material to facilitate the rapid transfer of liquid (such as urine) through the surface layer. If the surface layer is made of a hydrophobic material, it is better that at least the body surface of the surface layer, or part of it, be treated to be hydrophilic, so that the liquid can transfer through the surface layer more quickly. This eliminates the possibility of body secretions flowing out of the surface layer instead of being drawn through the surface layer and absorbed by the absorbent core material. The surface layer can be made hydrophilic by treatment with a surfactant. A suitable method for treating the surface layer with a surface active agent includes spraying the surface layer material with the surface active agent and immersing the material in the surface active agent. A more detailed discussion of this treatment and hydrophilicity includes U.S. Patent 4,988,344 issued to Reising et al. on January 29, 1991, entitled "Absorbent Articles with Multiple Layer Absorbent Layers", and 1991 U.S. Patent 4,988,345 issued to Reising on January 29, 2005, entitled "Absorbent Articles with Rapid Acquiring Absorbent Cores", each of which is incorporated herein as a reference.

In the particularly preferred embodiment as described in the text, the surface layer of the absorbent article will also be provided with a skin care composition. A representative description of the treated surface was issued to Roe, Bakes, and Warner on July 1, 1997 in US Patent No. 5,643,588, "Diaper Having a Lotioned Topsheet"; and June 1997 US Patent 5,635,191 issued to Roe and Mackey on the 3rd, "Diaper Having a Lotioned Topsheet Containing a Polysiloxane Emollient"; each of which is incorporated herein For reference. The method of releasing the skin care composition through repeated use of absorbent articles with such a treated surface layer was published in US Patent Application No. 08/926,532 (P&amp;G Case 6823) filed by Elder et al. on September 10, 1997, " A Method For Maintaining or Improving Skin Health"; US Patent Application No. 08/926,533 (P&amp;G Case) filed by Van Rijswijck et al. on September 10, 1997 6822), "A Method For Improving Skin Condition"; and US Patent Application No. 08/908,852 (P&amp;G Case 5494CR) filed by Roe et al. on August 8, 1997, "with "Diaper Having ALotioned Topsheet", each of which is incorporated into this article as reference materials. As discussed in the text, the skin care composition disposed on both the frills and the surface layer will promote the transfer of the skin care composition to a larger amount of skin in terms of surface area, as opposed to treating only the frills. In addition, applying the two components can release a larger amount of skin care composition to the wearer's designated area, and/or release skin care compositions of different formulations to provide different skin benefits.

In the preferred embodiment of the diaper as described herein, the back layer 42 has a modified hourglass shape that extends over the absorbent core material throughout the diaper. The backing layer is preferably a soft, cloth-like fabric laminate, including selectively perforated polymer formed films and non-woven fabrics. This breathable back layer is more fully described in U.S. Patent 5,571,096 issued to Dobrin et al. on November 5, 1996, which is incorporated herein by reference.

The absorbent core 44 can take any size or shape that is compatible with the diaper 20. A preferred embodiment of the diaper 20 has an asymmetric, modified T-shaped absorbent core 44, which has ears in the first waist region but is generally rectangular in the second waist region. The use of the absorbent core material of the present invention has achieved wide acceptance and commercial success. The description of the absorbent structure as an exemplary absorbent structure of the absorbent core of the present invention was issued to Weisman et al. on September 9, 1986 in U.S. Patent 4,610,678, entitled "High-Density Absorbent Structure (High-Density). Absorbent Structures"; US Patent 4,673,402 issued to Weisman et al. on June 16, 1987, entitled "Absorbent Articles With Dual-Layered Cores"; issued on December 19, 1989 US Patent No. 4,888,231 to Angstadt, entitled "Absorbent Core Having A Dusting Layer"; EP patent of Procter &amp; Gamble Company announced on March 1, 1995 Application 640 330; and US Patent 4,834,735 issued to Alemany et al. on May 30, 1989, entitled "High Density Absorbent Members Having Lower Density and Lower Basis Weight Acquisition Zones)". The absorbent core material may further include a dual core material system comprising an absorption/distribution core material of chemically reinforced fibers arranged on the absorbent storage core material, as detailed in US Patent 5,234,423 issued to Alemany et al. on August 10, 1993 , Titled "Absorbent Article With Elastic Waist Feature and Enhanced Absorbency"; and US Patent No. 5,147,345 issued to Young, LaVon and Taylor on September 15, 1992, titled "Supply High Efficiency Absorbent Articles For Incontinence Management". Incorporate all these patents into this article as reference materials.

In a preferred embodiment, the diaper 20 includes ruffles, each of which includes leg ruffles including barrier ruffles 62 and/or pad ruffles 56 to provide improved containment of fluids and other body secretions. Frills provide improved containment of fluids and other body secretions, and can be constructed in many different shapes. The diaper 20 may also include ruffles with elastic waist portions (not shown in the figure) and/or elastic side strips (not shown in the figure) to provide a more fitting fit and more effective use of the diaper 20. These frills can also be treated with the skin care composition.

Each leg hem may include several different specific examples for reducing leakage of body secretions in the leg area. (Leg ruffles are sometimes referred to as leg loops, side flaps, barrier ruffles, elastic leg ruffles, padded ruffles, or elastic ruffles.) Incorporated as a reference in the United States Patent 3,860,003 describes a disposable diaper that provides a retractable leg opening. The retractable leg opening has lateral flaps and one or more elastic elements to provide elastic leg hems (pad hems). US Patent 4,909,803, issued to Aziz et al. on March 20, 1990 and incorporated herein as a reference, entitled "Disposable Absorbent Article Having Elasticized Flaps" describes one Disposable diapers with "upright" stretchable flaps (barrier frills) to improve the accommodation in the leg area. U.S. Patent No. 4,695,278, issued to Lawson on September 22, 1987 and incorporated herein as a reference, entitled "Absorbent Article Having Dual Cuffs)" describes a disposable diaper with double ruffles including pad ruffles and barrier ruffles. Although each leg ruffle can be constructed similarly to any of the aforementioned leg loops, side flaps, Barrier frills or elastic frills, but the leg frills preferably include barrier frills 62 and pad frills 56 described in detail below.

Each barrier hem 62 is a soft element having a proximal edge 64, a distal edge 66, a clothing surface 68 (also called an inner surface), and a body surface 70 (also called an outer surface). When the diaper is worn, the clothing surface 68 faces the inner side of the diaper, and the body surface 70 faces the wearer's skin. The barrier hem 62 can be made of a wide variety of materials, such as polypropylene, polyester, rayon, nylon, foam, non-woven fabric, plastic film, formed film, and elastic film or foam. Many manufacturing techniques can be used to manufacture barrier frills. For example, the barrier frill 62 may be woven, non-woven, spunbonded, spunbonded-melt blow-molded-spunbonded, carded, coated, laminated, and so on. The preferred barrier rib hem 62 comprises a polypropylene material that does not contain coating agents or surfactants to make it liquid impermeable. The exemplary polypropylene fiber nonwoven material is a product called Celestra manufactured by the Crown Zellerbach Company. A particularly good non-woven material is a carded non-woven fabric under the name of 67700 purchased from PGI Company in Landisville, New Jersey. Or the material may be a non-woven fabric named MD300A supplied by Corovin GmbH in Peine, Germany. In addition, due to the hydrophobic skin care composition used in the present invention, the barrier ribs can be made of hydrophilic materials, and a hydrophobic skin care composition is arranged on it to improve the barrier properties.

As shown in FIGS. 1 and 3, the barrier hem 62, especially the proximal edge 64, is arranged inside the longitudinal edge 30, adjacent to the cushion hem 56 and preferably inside the cushion hem 56. The term "inner side" is defined as the direction parallel to the edge of the individual diaper on which the special pad hem is arranged toward the centerline of the diaper (34 or 36, respectively). The barrier hem 62 is arranged adjacent to the cushion hem 56 to provide a more effective double restriction on the flow of body secretions. The barrier ruffle 62 is preferably arranged inside the cushion ruffle 56 so that secretions, especially those that are not easily absorbed and tend to float on the body surface 40, contact the cushion ruffle 56 The barrier hem 62 can be contacted before. The barrier rib hem 62 is preferably arranged between the flap elastic element 60 of the pad hem 56 and the longitudinal center line 36 of the diaper 20. The barrier hem 62 is preferably arranged between the flap elastic element 60 and the side edge 46 of the absorbent core 44 in the bifurcated region 26 of the diaper 20.

The proximal edge 64 and the distal edge 66 are spaced relative to each other to define the width of the barrier hem 62. The proximal and distal edges 64 and 66 may be parallel, non-parallel, straight, or curved, respectively. In addition, the barrier rib hem 62 may have various cross-sectional areas, including round, square, rectangular, or any other shapes such as those shown in FIG. 3. The proximal edge 64 and the distal edge 66 are spaced apart in a parallel and linear relationship, and it is preferable to provide a barrier hem 62 having a uniform width.

The preferred embodiment of the diaper 20 shown in FIGS. 2 and 3 has barrier ribs 62 bonded to the surface layer 38. The term "bonded" includes any way of attaching the barrier hem 62 to the diaper 20, and includes the specific example of the barrier hem 62 having individual elements attached directly or indirectly to the proximal edge 64 of the surface layer 38 (ie, integral ), or the barrier hem 62 is made of the same element or material as the surface layer 38, so that the distal edge 64 is a specific example (ie, a single) of a continuous and indivisible element of the surface layer. Alternatively, the barrier hem 62 may be bonded to any combination of these or other elements of the lateral flaps 58, the backing layer 42, the absorbent core 44, the surface layer 38, or the diaper 20. In the preferred diaper 20, the barrier ribs 62 are integrated with the surface layer 38. The overall barrier hem 62 is preferably formed by a strip of material-barrier hem element 63, which is fixed to the surface by a proximal fixing element 92, and the distal edge 66 is formed by folding the end of the barrier hem element 63 back to itself. form.

The distal edge 66 is preferably arranged on the inner side of the proximal edge 64 to present a more effective barrier to the flow of secretions. The distal edge 66 is maintained inside the proximal edge 64 by the closure element 78 to prevent its reversal. Although the distal edge 66 can also be arranged at other positions relative to the proximal edge 64, such a position is not preferable.

The distal edge 66 is preferably not fixed to any other elements at least in the crotch region 26 of the diaper 20 so that it can be isolated from the body surface 40 of the surface layer 38. The distal edge 66 is separated from the body surface 40 to improve the accommodation of objects. As used herein, "spaced" includes that the distal edge 66 can take one or more positions relative to the body surface 40 of the surface layer 38, including specific examples where a position adjacent to the body surface 40 of the surface layer 38 is sometimes taken. The distance between the distal edge 66 and the body surface 40 of the surface layer 38 is when the distal edge 66 is positioned so as to be as far away from the surface layer as possible (that is, in the elastic contraction position), the distance is drawn from the distal edge 66 to the closest. Measured by the straight line of the 38 part of the surface layer.

In addition to the barrier hem, the leg hem of the present invention preferably further includes the pad hem 56. The liner hem 56 is arranged adjacent to the diaper 20 so as to be disposed along each longitudinal edge 30, so that the liner hem 56 tends to pull the diaper 20 toward and fix the diaper 20 to the leg of the wearer. Although the pad hem 56 can include any of several devices well known in the diaper art, a particularly preferred pad hem structure includes soft lateral flaps 58 and flap elastic elements 60, as detailed in 1975 US Patent No. 3,860,003 issued to Buell on January 14 and incorporated herein by reference. In addition, the description of the method and device suitable for manufacturing disposable diapers with elastic pad hem 56 is US Patent No. 4,081,301 issued to Buell on March 28, 1978, entitled "Continuously separate and extended elastic parts Method and Apparatus for Continuously Attaching Discrete, Stretched Elastic Strands to Predetermined Isolated Portions of Disposable Absorbent Articles", this patent is incorporated herein as reference material.

The lateral flaps 58 should be highly flexible and therefore shrinkable so that the flap elastic elements 60 can gather the lateral flaps 58 and provide cushioning ruffles 56 to the leg or waist of the wearer. The lateral flaps 58 are preferably the part of the diaper 20 between the periphery and the edge of the absorbent core material 44. Therefore, in the preferred embodiment of the present invention as shown in FIG. 1, the lateral flaps 58 are formed from and along the side edges 46 of the absorbent core 44 of the diaper 20 at least in the bifurcated region 26. The back layer 42 and the surface layer 38 are formed by the extension. Alternatively, as described in US Patent 3,860,003, the lateral flaps can be separate elements bonded to the base (surface layer, back layer, and/or absorbent core), or one of the components of the lateral flaps can be separate elements.

The flap elastic element 60 is preferably operatively coupled (fixed) to the lateral flap 58 under the condition of elastic contraction, so that in a normal and uninhibited configuration, the flap elastic element 60 can effectively shrink or gather the sides. To the flaps 58. The flap elastic element 60 can be fixed to the lateral flap 58 in at least two ways while being elastically contractible. For example, the flap elastic element 60 may be stretched and secured to the side flap 58 when the side flap 58 is not contracted. Alternatively, the lateral flaps 58 may be contracted, for example via pleating, and the flap elastic elements 60 are secured to the contracted lateral flaps 58 when the flap elastic elements 60 are not relaxed or stretched. Another way is that the pad hem may include many different elastically stretchable structures, such as elastic non-woven fabrics or foam plastics; stretch laminates such as those described in U.S. Patent 5,151,092 issued to Buell et al. on September 29, 1992, will It is incorporated herein as reference material; and structural elastic-like film (SELF; structural elastic-like film) base material, such as described in US Patent No. 5,518,801 issued to Chappell et al. on May 21, 1996, is incorporated herein as Reference materials.

In the specific example illustrated in FIG. 1, the flap elastic element 60 extends substantially the entire length of the lateral flap 58 in the bifurcated region 26 of the diaper 20. Alternatively, the elastic element 60 may extend the entire length of the diaper 20, or any other length suitable for providing pad hem. The length of the flap elastic element 60 is determined by the design of the diaper.

In the diaper 20 of FIG. 3, the flap elastic element 60 is combined with the lateral flap 58 by fixing it to the lateral flap 58 with an elastic attachment element 90. The elastic attachment element 90 should be soft and have sufficient adhesive force to fix the flap elastic element in its extended condition. The elastic attachment element 90 here is preferably a pellet or spiral made of hot melt adhesive, such as Findley sold by ATO Findley Incorporated in Wauwatosa, Wisconsin. 2511 or Findley H9254. It should be understood that traditional adhesives may not be compatible with all skin care compositions. Specifically, certain skin care compositions may degrade the integrity of the adhesive bond, resulting in elastic creep and/or poor adhesion. It has been found that when applying skin care compositions, an adhesive that is particularly effective for avoiding elastic creep is Findley H9254. A more detailed description of the manner in which the flap elastic element 60 can be arranged and fixed to the diaper 20 can be found in U.S. Patent No. 4,253,461 issued to Strickland and Visscher on March 3, 1981, and issued to Buell on March 28, 1978. Of US Patent No. 4,081,301, these two patents are incorporated herein as reference materials.

One type of flap elastic element 60 that has been found to be applicable is an elastic material strand made of natural rubber, such as the natural rubber purchased from Easthampton Rubber Thread Company Rubber ThreadCompany) is a rubber compound under the trade name L-1900. Other suitable flap elastic elements 60 may be made of natural rubber, such as an elastic tape sold under the trade name Fulflex 9211 by Fulflex Company in Scotland, North Carolina. The exemplary elastic element is Lycra fiber stock, such as a product sold under the trade name Lycra-XA T-151 from DuPont Company in Waynesboro, Virginia. The flap elastic element 60 may also include any heat-shrinkable elastic material well known in the art. Other suitable flap elastic elements 60 may include quite a variety of materials well known in the art, including elastomer films, Lycra films or fiber strands, polyurethane films, elastomer foams, and formed elastic loose nonwoven fabrics. (scrim).

In addition, the flap elastic element 60 can have a large number of forms. For example, the width of the flap elastic element 60 can be from about 0.25 mm (0.01 inch) to about 25 mm (1.0 inch) or more; the flap elastic element 60 may include a single strand of elastic material or may include several parallel or non-parallel elastics. Material strands; or the flap elastic element 60 can be straight or curved. Furthermore, the flap elastic element 60 can be attached to the diaper 20 in any of several ways well known in the art. For example, the flap elastic element 60 can be ultrasonically bonded, heat-sealed/pressure-sealed to the diaper 20 with various adhesive patterns, or the flap elastic element 60 can be simply glued to the diaper 20.

The ruffles can also include elastic waist portions, such as a stretched waistband (not shown in the figure), which can be constructed in many different forms, including the form described in the following patent: issued to Kievit on May 7, 1985 US Patent No. 4,515,595: US Patent No. 5,026,364 issued to Robertson on June 25, 1991; and US Patent No. 5,151,092 issued to Buell et al. on September 29, 1992 as reference materials, each These references are incorporated herein as reference materials, wherein the skin care composition is configured thereon.

The ruffles can further include elastic side strips that can be constructed into many different shapes, wherein the skin care composition is disposed thereon. Examples of diapers with elastic side strips were published in U.S. Patent No. 4,857,067 issued to Wood et al. on August 15, 1989; U.S. Patent No. 4,381,781 issued to Sciaraffa et al. on May 3, 1983; July 1990 U.S. Patent No. 4,938,753 issued to Van Gompel et al. on September 3; U.S. Patent No. 5,151,092 issued to Buell et al. on September 29, 1992; U.S. Patent No. 5,580,411 issued to Nease et al. on December 3, 1996; 1997 U.S. Patent 5,669,897 issued to LaVon et al. on September 23; and U.S. Patent 5,569,232 issued to Roe et al. on October 29, 1996; each of which is incorporated herein by reference.

Specific examples of the ruffles of the present invention can also include sealing tapes for receiving and accommodating wastes, spacers for providing waste gaps, barriers for restricting the movement of wastes in objects, and receiving and accommodating waste materials accumulated in the diaper. Compartments or voids, etc., or any combination thereof, wherein the skin care composition is disposed thereon. Examples of envelopes and spacers used in absorbent products illustrate US Patent No. 5,514,121 issued to Roe et al. on May 7, 1996, entitled "Diaper Having Expulsive Spacer"; 1992 U.S. Patent No. 5,171,236 issued to Dreier et al. on December 15, 2005, entitled "Disposable Absorbent Article Having Core Spacers"; U.S. Patent No. 5,397,318 issued to Dreier on March 14, 1995 , Titled "Absorbent Article Having A Pocket Cuff"; U.S. Patent 5,540,671 issued to Dreier on July 30, 1996, titled "Absorbent Article Having A Pocket Cuff" Absorbent Article Having A PocketCuff With An Apex)"; and the PCT application WO 93/25172 published on December 3, 1993, titled "Spacers for Use InHygienic Absorbent Articles And Disposable Absorbent Articles Having Such Spacer)"; and U.S. Patent 5,306,266 issued to Freeland on April 26, 1994, entitled "Flexible Spacers For Use In Disposable Absorbent Articles". Examples of compartments or voids were published in U.S. Patent 4,968,312 issued to Khan on November 6, 1990, entitled "Disposable Fecal Compartmenting Diaper"; issued to Freeland on February 5, 1991 US Patent 4,990,147, titled "Absorbent Article With Elastic Liner For Waste Material Isolation)"; U.S. Patent 5,062,840 issued to Holt et al. on November 5, 1991, entitled "Disposable Diapers"; and U.S. Patent 5,269,755 issued to Freeland et al. on December 14, 1993 , Titled "Trisection Topsheets For Disposable Absorbent Articles And Disposable Absorbent Articles Having Such Trisection Topsheets for Disposable Absorbent Articles". Examples of appropriate horizontal barriers US Patent No. 5,554,142 issued in the name of Dreier et al. on September 10, 1996, entitled "Absorbent Article Having Multiple Effective Height Transverse Partition"; July 7, 1994 Japanese PCT patent WO94/14395, titled "Absorbent Article with Vertical Transverse Separator (Absorbent Article) Having An Upstanding Transverse Partition"; and US Patent No. 5,653,703 issued to Roe et al. on August 5, 1997, "Absorbent Article Having Angular Upstanding Transverse Partition (Absorbent Article Having Angular Upstanding Transverse Partition)." All references are incorporated into this article as reference materials.

The exemplary fastening system 54 was published in U.S. Patent No. 4,846,815 issued to Scripps on July 11, 1989; U.S. Patent No. 4,894,060 issued to Nestegard on January 16, 1990; U.S. Patent No. 4,946,527; U.S. Patent No. 3,848,594 issued to Buell on November 19, 1974; U.S. Patent No. 4,963,140 issued to Robertson et al. on October 16, 1990; US Patent No. 4,662,875; and US Patent No. 5,151,092 issued to Buell et al. on September 29, 1992; each of which is incorporated herein by reference. The skin care composition can be configured on one or more components of the fastening system to further improve skin health. For example, the skin care composition described here is not arranged on the strap tabs so as to slow down the friction of the strap tabs on the skin.

Fig. 4 is a perspective view of the diaper 20 in its elastic contraction position before being placed on the wearer. The surface layer 38 is shown as a part of the body surface of the diaper 20, and the back layer 42 is disposed away from the wearer's body. The cushion hem 56 is shown to be gathered or contracted by flap elastic elements (not shown in FIG. 4). The diaper 20 is shown as having two barrier hem 62 adjacent to the cushion hem 56 and extending inside the cushion hem 56. The distal edge 66 is shown as being gathered and contracted by a spacer elastic element (not shown in the figure) in the bifurcation area of the legs. In addition, the end 74 of the barrier hem 62 is firmly closed to provide comfort for the wearer, prevent the barrier hem from reversing, and make the diaper easy to use. The skin care composition 72 is arranged on the body surface of each barrier frill 62 (applied to the body surface, or applied so that it can be moved to the body surface), so that it can be transferred to the wearer's skin, and the discussion is provided in the text Skin benefits.

The diaper 20 is made by placing the back waist area 24 under the back of the wearer and pulling the rest of the diaper 20 between the wearers legs so that the front waist area 22 is tied in front of the crossing person. Use on the wearer. Then, the end of the belt-tab fastener 54 is fixed to be preferably fixed to the lifting element 55, so that the diaper 20 is closed. The barrier frill 62 should be set in the bifurcated area of the wearer's legs in this way, and the treatment and function described in the preceding paragraph should be provided. Once used, the distal edge 66 of the barrier hem 62 extends through the groin area and radiates upward along the wearer's hips. None of the barrier ruffles 62 surround the wearer's thigh. However, the padded ruffle 56 will wrap around the thigh and have a cushioning effect on the thigh. The barrier hem 62 contacts the wearer's skin and transfers the skin care composition 72 to it, thereby providing some or all of the benefits described in the text.

The treated ruffles of the present invention can also be effectively used for training pants or wearing diapers. The term "training pants" as used herein refers to disposable garments with fixed sides that define fixed waist and leg openings. The training pants are fixed on the wearer by inserting the wearer's legs into the leg openings and positioning the training pants against the wearer's lower body. Appropriate training pants were published in U.S. Patent No. 5,246,433 issued to Hasse et al. on September 21, 1993; U.S. Patent No. 4,940,464 issued to Van Gompel et al. on July 10, 1990; and issued March 3, 1992 Nomura et al., US Patent No. 5,092,861, each of which is incorporated herein by reference. The treated ruffles of the present invention can also be applied to absorbent articles that are combinations of training pants and diapers (wearing diapers) or "composites", as described in the United States issued to Buell and Carlin on October 29, 1996 Patent 5,569,234, "Disposable Pull-On Pant", which is incorporated into this article as a reference.

Another disposable absorbent article that can be effectively used with the processed frills of the present invention is an incontinence article. The term "incontinence object" refers to cushions, underwear (using a certain type of suspension system, such as belts, etc., to fix the cushion in place), inserts for absorbent objects, capacity enhancers for absorbent objects, shorts, mattresses And so on, regardless of whether it is worn by an adult or other incontinent individual. Appropriate incontinence articles were published in U.S. Patent No. 4,253,461 issued to Strickland et al. on March 3, 1981; U.S. Patent Nos. 4,597,760 and 4,597,761 issued to Buell; U.S. Patent No. 4,704,115 mentioned above; issued to Ahr et al. Peoples U.S. Patent No. 4,909,802; U.S. Patent No. 4,964,860 issued to Gipson et al. on October 23, 1990; and PCT Publication No. WO 92/11830 of Prot and Gambo, published on July 23, 1992 ; Incorporate them into this article as reference materials.

Figure 7 is a simplified partial cross-sectional view of another preferred diaper structure of the present invention. The diaper 720 includes a base and processed frills coupled to the base. The base includes (i) an outer covering layer including a part of the surface layer 38 and a part of the back layer 42 to (ii) absorb the core material 44. The folded edges each include a barrier folded edge 762 and a cushion folded edge 756. The barrier hemming 762 includes a separate barrier hemming element 763 having a flap part 702 and a channel part 704.

The flap portion 702 is formed by attaching part of the barrier frill element 763 to the back layer 42 adjacent to the longitudinal edge 30 of the diaper by using a flap attachment element 88, such as an adhesive; The attachment element 88, the flap portion 68, and the back layer 42 are formed to provide protection against leakage of liquid infiltrated along the surface layer 38. The flap portion 702 and the back layer 42 define the lateral flap 758 of the cushion ruffle 756 and enclose the flap elastic element 760. The flap elastic element 760 is fixed to the flap part-back layer-forming lateral flap 758 by the elastic attachment element 90. The cushion hem 756 is thus formed by the lateral flaps 758 and the flap elastic elements 760.

The channel portion 704 of the barrier hem 762 is connected to the flap portion 702 and has a proximal edge 64 and a distal edge 66. The proximal edge 64 uses a proximal fixing element 92, such as mechanical/compression bonding, to connect a section of the barrier hemming element 763 to the back layer 42, and is preferably formed on the inner side of the pad hem 756, on the side of the absorbent core The edge 46 and the flap elastic element 760 are better, and a leak-proof seal is formed along the proximal edge 64 to present a barrier to the liquid infiltrated through the surface layer 38, and to prevent the liquid from infiltrating into the diaper 20 under the hem of the barrier. The edge. The distal edge 66 is preferably arranged on the inner side of the proximal edge 64, and is not fixed to any lower layer element of the diaper 20. As shown in FIG. 7, the distal edge 66 preferably forms a channel by folding the end of the barrier hemming element 763 back to itself, and using the distal attachment element 96 to fix it to another section of the barrier hemming element. A spacer member, such as a spacer elastic element 76, is enclosed in the channel; the spacer elastic element 76 is fixed to the barrier hem 762 by the elastic attachment element 94. (For another specific example, only the end of the spacer elastic element is fixed to the barrier frill element to produce a "drawstring elastic", so that the middle section of the elastic string "floats" in the channel. The elastic string is more It is described in detail in U.S. Patent No. 4,816,025 issued to Richardson on March 28, 1989, which is incorporated herein by reference.) The distal edge 66 is thus connected to the surface layer 38 by the gathering action of the spacer elastic element 77 The body surface 40 is spaced apart.

In the specific example shown, the surface layer 38 is disposed on the body surface adjacent to the absorbent core 44 and extends beyond the side edges 46 of the absorbent core 44, but ends inside the proximal edges 64. (Alternatively, the surface layer can extend outward beyond the proximal edge, but terminate inside the outermost flap attachment element 88 to obtain structural benefits.) A more detailed description of the frill structure of this specific example was described in January 1989 US Patent 4,795,454 issued to Dragoo on the 3rd, "Absorbent Article Having Leakage-Resistant Dual Cuff", this patent is incorporated herein as a reference.

The flap portion 702 is connected to the channel portion 704 and extends outward from the proximal edge 64 of the channel portion 704 to the longitudinal edge 30, so as to extend to the longitudinal edge 30, preferably so as to extend from the back layer 42 and the flap portion 702 The lateral flaps 758 are formed. Although the flap part 702 is preferably a continuous segment of the barrier frill element 763, the flap part 702 can be formed from a different piece of material fixed to the channel part 704 of the barrier frill 762. Therefore, the flap portion 702 may have different physical properties, dimensions, and characteristics from the channel portion 704. For example, the flap portion 702 does not need to be hydrophobic, nor does it need to extend outward to the longitudinal edge 30. In addition, each barrier frill 762 does not need to have a flap part, so that the flap part can be completely omitted. However, the flap part is hydrophobic, compliant, soft to the touch and not irritating to the wearer's skin, because it is in contact with the wearer's legs when used.

An effective amount of the skin care composition is placed on the frills to provide skin care benefits to the wearer. In order to achieve the delivery of the skin care composition to the wearer's skin during use, it is better to arrange the skin care composition on the hem of the part that will be in contact with the wearer's skin. Therefore, the skin care composition can be arranged on both surfaces of the hem, one surface of the hem, or either surface or part of both surfaces. In the specific example shown in FIG. 7, the skin care composition may be disposed on the flap portion 702, the channel portion 704, or both. If the skin care composition is arranged on both the flap part and the channel part, the formula of the skin care composition arranged in each part does not need to be the same. In fact, each skin care composition can have different formulations and properties to provide different benefits. For example, the first skin care composition that can reduce diaper rash can be arranged in the channel part, and the second skin care composition that can reduce skin irritation and/or relax the skin can be arranged in the flap part, for example. In the specific example shown in FIG. 7, the first skin care composition 72 is arranged on the channel part to be better on the body surface; the second skin care composition 72' is arranged on the flap part to It is better on the surface of the body; and the third skin care composition 72" is arranged on the surface layer to be better on the surface of the body. The formula of each skin care composition does not need to be the same; however, here is a specific example The formula of each skin care composition is the same. Each skin care composition is configured in an effective amount to transfer the skin care composition to the wearer's skin.

As shown in Fig. 7, the skin care composition is preferably arranged on the discontinuous part of the flap part and the channel part. The skin care composition is preferably used with one or more stripes, and the one or more stripes are best aligned with the area above the flap elastic element or the spacer elastic element. The first skin care composition 72 is preferably applied to the channel portion 704 by wide stripes (approximately 1.4 inches) extending from the distal edge 66 to the proximal edge 64. The length of this stripe extends along the length of the spacer elastic element 76 (about 11.75 inches long), so that the part of the barrier frill element 763 adjacent to the end of the spacer elastic element in the front waist region is not provided with skin care composition. 72. (For example, see FIG. 1.) A plurality of stripes of the second skin care composition 72' are arranged on the flap portion 702.

The skin care composition can be applied to the body surface 57 or the clothing surface 59 of the barrier frill member 763. If applied to the surface of clothing, the skin care composition is preferably used as a hydrophobic coating to help prevent urine and feces from flowing through the hem of the barrier. Also, the skin care composition is applied so that it can move or transfer through the body surface of the barrier frill element, and can transfer to the wearer's skin, and provide the skin care benefits discussed herein.

The skin care composition can also be arranged on the surface layer to provide different or the same benefits as applied to the barrier hem. Examples of skin care compositions for the surface layer are illustrated in US Patent 5,643,588 issued to Roe et al. on July 1, 1997, which is incorporated herein by reference.

Fig. 8 is another specific example of the treated frills, especially the breathable treated elastic leg frills of the present invention. As shown in FIG. 8, the diaper 820 includes a base including an outer covering layer, and an absorbent core 44 wrapped in the outer covering layer. The outer covering layer includes a surface layer 38 and a back layer 42. The distance between 38 and the back layer 42 is better. The leg hem 856 includes lateral flaps 858 and elastic elements 860. The leg hem 856 is formed as a separate unit coupled to the base. In this particular embodiment, the lateral flap 858 includes two hemming elements, a first hemming element 802 that is bonded to the surface layer 38 and extending laterally outward therefrom, and a first hemming element 802 that is bonded to the back layer 42 and laterally outward therefrom. The second hemming element 804 is extended. The first hemming element 802 and the second hemming element 804 encapsulate the elastic element 860, and the elastic element 860 is operatively coupled to either or both of the hemming elements to form a cushion hemming. In the specific example shown, each frill element is formed of a material that allows vapor to pass (breathability) but has a tendency to delay the passage of liquid (permeable to air but not to liquid). In this particular embodiment, the hemming elements each include a non-woven fabric; however, other air-permeable materials may also be used, including perforated formed films. This more detailed description of leg frills was published in U.S. Patent 4,636,207 issued to Buell on January 13, 1987, and this patent is incorporated herein as a reference.

The skin care composition can be disposed on either the first hemming element, the second hemming element, or both. In a preferred embodiment shown in FIG. 8, the skin care composition 872 is disposed on the first frill element 802, so as to be better on the body surface 802, so that when the leg frills 856 and the wearer Upon contact, the skin care composition 872 can be easily transferred to the wearer's skin. The skin care composition is preferably applied by one or more stripes, and preferably one or more stripes are arranged in a row with the area above the elastic element. Alternatively, the skin care composition can be applied to the clothing surface 808 of the first frill element 802 or the second frill element 804 so that it can be moved or transferred through the material to the body surface 806 of the first frill element 802 , In order to provide the benefits of skin care composition and provide leg ruffles with reduced leakage. In addition, the skin care composition can be applied to the elastic element and transferred to the body surface of the first frill element. (In another alternative embodiment, the second hemming element can be replaced by extending the backing layer all the way to the edge of the diaper).

The breathability (vapor permeability) of the ruffles improves the function of many skin care compositions used in the present invention by allowing the vapor in the diaper to be exchanged to reduce the relative humidity inside the diaper. Excessive relative humidity in the absorbent article can interfere with the transport of water vapor in and out of the skin between the wearer's skin and the article. By providing a member (breathable frill) that transports this excess moisture, the driving force toward excessive hydration can be reduced. In this way, moisture adjacent to the skin can be removed from the diaper, thereby further improving the wearer's skin health beyond what can be provided by using the skin care composition of the present invention alone. (Due to the skin care composition disposed on the surface layer, such as the improved air permeability and excellent liquid handling properties provided by the improved skin ventilation, and the over-hydration of the skin provides improved protection of the disposable absorbent article published in Elder et al. The U.S. Patent Application No. 08/926,566 (P&amp;G Case 6832Q) filed on September 10, 1997, "Disposable Absorbent Articles Providing A Skin Condition Benefit", combined it Enter this article for reference.)

FIG. 9 is a plan view of another alternative specific example of the present invention with separate side strip laminates, front side strips 902 and rear side strips 904 bonded to the base (accommodating combination). The extensible back side strip 904 has a first

The multi-directional stretch provided by the side strips 906 and the second side strip 908 provides individual extensibility along the waist and leg portions of the diaper 920. Side strips and diapers more fully describe the US Patent 5,580,411 issued to Nease et al. on December 3, 1996, "Zero Scrap Method for Manufacturing Side Panels for Absorbent Articles" ", and the United States Application No. 08/115,048 filed in the name of Robles et al. on November 19, 1994, entitled "Absorbent Article With Multi-Directional Extensible Side Panels)", which is incorporated herein as reference material. It is incorporated herein as reference material. The diaper 920 can have various processed frills and combinations thereof. The leg frills of the diaper 920 include a base (accommodating combination) The padded ruffles 956 and the leg edges 910 of the second side strips 908 and the front side strips 902. The waist frills include the elastic waistband 912 of the base (accommodating combination) and the first side strips 906 and the front side strips Waist edge 914 of 902. In this specific example, the skin care composition can be applied to the side strips or any part thereof, pad hem, elastic waistband, or any combination of the above components. For example, the skin care composition can be applied to An elastic waistband and a part of the waist edge of each of the first side strip and the front side strip. The skin care composition can be arranged on the hem of each leg, including the part of the padded hem, and the leg of the second side strip The edges and the leg edges of the front side strips. Therefore, the skin care composition can provide a therapeutic or protective coating to the wearers legs. Alternatively, skin care compositions of different formulations can be arranged on any of these frills Combinations or all of them. Another skin care composition can also be arranged on the surface layer 38 discussed here. As shown in Figure 9, the first skin care composition 972 is arranged on the first with multiple spiral stripes. On the side strip 906, the second skin care composition 972' is arranged on the second side strip 908 with multiple spiral stripes, and the third skin care composition 972" is arranged on the second side strip 908 with multiple spiral stripes. On the forward side bar 902. Each skin care composition can have the same formula or different formulas. If the skin care composition has different formulas, each specific skin care composition can be formulated to provide unique skin care benefits to different parts of the wearer.

Fig. 10 is a partial cross-sectional view of another preferred diaper structure with treated frills disposed in the waist region of the diaper. In particular, this figure depicts a single waist cap/waist belt. A specific example of this single waist cap/waist belt was published in US Patent No. 5,026,364 issued to Robertson on June 25, 1991, and this patent is incorporated herein as reference material. (It should be noted that the present invention is not limited to a single waist cap/belt, but also covers belts such as those shown in U.S. Patent 4,515,595 issued to Kievit &amp; Osterhage on May 7, 1985; and belts such as those published on April 19, 1988 The waist cap in U.S. Patent 4,738,677 to Foreman and U.S. Patent 4,743,246 issued to Lawson on May 10, 1988; each of these patents is incorporated herein as reference.) A single waist cap/waist belt 1002 is tied to The diaper 1020 is formed by operatively combining a single piece of elastomeric material. The outward part 1004 is operatively combined with the waist flap 1058 by the waistband fixing element (not shown in the figure), such as ultrasonic bonding, in an elastically contractible condition adjacent to the end edge 32 of the diaper 1020 and the waist flap 1058. Belt 1056. The inward portion 1006 is connected to the outward portion 1004, and has a proximal edge 1064 and a distal edge 1066. The proximal edge 1064 of the inward portion 1006 is connected to the waist flap 1058 (surface layer 38) by using a proximal attachment element (not shown in the figure), such as an adhesive, to follow the proximal edge. 1064 forms a seal and is formed on the inner side of the end edge 32 of the diaper 1020 so as to be preferably between the waist edge 47 of the absorbent core material 44 and the outward portion 1004. The distal edge 1066 is arranged on the inner side of the proximal edge 1064, and in the figure shown, it is not fixed to any underlying element of the diaper 1020, especially the surface layer 38, so that the inward portion 1006 can be in contact with the surface layer 38. The body surface 40 is separated to form a waist cap 1062 (barrier frill). In the specific example shown, a single piece of material serves as both an elastic waistband 1056 and a waist cap 1062 (barrier frill). This single piece of material is referred to herein as a single waist cap/waist belt 1002. The waistband improves the fit of the diaper to the wearer and delays leakage from the waist area; while the waist cap restricts, contains, and fixes body secretions in the diaper. However, it should be noted that both the waist cap and the waist belt can be formed from separate elements.

In the specific example shown, the skin care composition can be disposed on the inner portion, the outer portion, or both. Therefore, the skin care composition can be applied to a waist cap or waist belt. It is better to apply the skin care composition to the body surface of a single waist cap/waist belt so as to contact and transfer to the wearer's skin during use. As shown in Figure 10, the skin care composition 1072 is preferably arranged in one or more stripes on the body surface 1070 of a single waist cap/waist belt 1002, preferably adjacent to the distal edge 1066 of the waist cap 1062 and in the waist belt 1056. . In order to improve the hydrophobicity of the waist cap and provide a skin care composition that can be transferred to the skin, another way is to apply the skin care composition to the surface of the clothing and make it move or transfer to the surface of the body, thereby providing help to delay the passage of liquids. At the same time, the skin care composition can be easily transferred to the hydrophobic coating of the wearer's skin. In addition, skin care compositions of different formulations can be applied to the inner part relative to the outer part.

Another disposable absorbent article of the present invention is a feminine hygiene article, such as sanitary napkins. Appropriate feminine hygiene articles were published in US Patent No. 4,556,146 issued to Swanson on December 3, 1985; US Patent No. B1 4,589,876 issued to Van Tilburg on April 27, 1993; issued to Van on August 18, 1997 U.S. Patent No. 4,687,478 of Tilburg; U.S. Patent No. 4,950,264 issued to Osborn, III on August 21, 1990; U.S. Patent No. 4,950,264 issued to Osborn on April 23, 1991, III US Patent No. 5,009,653; US Patent No. 5,267,992 issued to Van Tilburg on December 7, 1993; US Patent No. 5,389,094 issued to Lavash et al. on February 14, 1995; issued May 9, 1995 U.S. Patent No. 5,413,568 of Road et al.; U.S. Patent No. 5,460,623 issued to Emenaker et al. on October 24, 1995; U.S. Patent No. 5,489,283 issued to Van Tilburg on February 6, 1996; October 29, 1996 US Patent No. 5,569,231 issued to Emenaker et al.; and US Patent No. 5,620,430 issued to Bamber on April 15, 1997; each of which is incorporated herein as a reference.

Figure 11 shows a partial coronal view of the cut sanitary napkin 1120 with the treated ruffles of the present invention worn on the wearer's underpants 1102 during use. A more detailed description of sanitary napkins with barrier ruffles can be found in US Patent 5,649,917 issued to Roberts &amp; Mancel on July 22, 1997; this patent is incorporated herein as reference. As shown in FIG. 11, the sanitary napkin 1120 includes a central absorbent pad, which includes a surface layer 38, a back layer 42, and an absorbent core 44 disposed between the surface layer 38 and the back layer 42; each longitudinal edge 1130 of the central absorbent pad The extended flaps 1104 (commercially referred to as "wings" or "tabs"), each flap 1104 has at least one softness axis, preferably the first softness axis 1106 and the second softness axis 1108, As a result, when in use, the elasticity of the underwear 1102 pushes the flap 1104 adjacent to the second softness axis 1108 tightly to the body, creating a double-walled barrier to accommodate menstruation; and including barrier frills 1162 (barrier The processed frill of the component), the barrier frill 1162 has a proximal edge 1164 and a distal edge 1166. The proximal edge 1164 is bonded to a sanitary napkin (in this specific example, the flap 1104 is preferred) to contain body secretions .

The skin care composition 1172 is arranged on each barrier rib 1162 to provide the skin care benefits as described in the text. Although the skin care composition can be applied to the entire frill, one surface of the frill, or any part thereof, in the specific example shown, the skin care composition is applied to the barrier frill 1162 in one or more stripes. The part of the body surface is preferably adjacent to the distal edge 1166. In addition, in the specific example shown, the second skin care composition 1172' is also arranged on each flap 1104. The third skin care composition 1172" is arranged on the surface layer 38. The second skin care composition 1172' arranged on the flap 1104 is preferably arranged on the part of the flap that is in contact with the wearer when in use, Typically it is the part of the flap adjacent to the second softness axis 1108. The second skin care composition 1172' can be arranged between the first softness axis 1106 and the second softness axis 1108 and/or Between the second softness axis 1108 and the distal edge 1110 of the flap, or on both. The formula of the skin care composition applied to the barrier ruffle, surface layer, and flap can be different, so that the wearer Different parts of the skin provide different skin care benefits. In the specific example shown, the skin care composition deployed on the surface layer, flaps, and barrier hem has the same formula.

B.<u>Skin care composition</u>

Although the specific skin care composition (referred to as "skin care composition" and "composition" in the text) provided according to the present invention is an important factor for providing the desired skin effect, the skin care composition should provide protection without sealing The function of (for example, a barrier that is quite impermeable to liquid but permeable to vapor), to avoid excessive skin moisture and exposing the skin to substances contained in body secretions; to minimize friction, to reduce frills and frills Skin irritation in the area where the wearers skin is in contact; or it is better to contain agents that directly or indirectly provide skin care benefits. For example, indirect benefits include improved removal of skin irritants, such as excrement or urine. The composition can be in various forms, including but not limited to emulsions, lotions, emulsifiable concentrates, ointments, ointments, powders, suspensions, microencapsulation, gels, and the like.

As used herein, the term "effective amount of skin care composition" means that when applied or moved to ("disposed") on the body surface of the frills, it will effectively reduce the frills in the area where the frills are in contact with the wearer's skin. The friction between the edge and the skin provides a protective barrier and/or provides skin care benefits when released through the frills, and/or reduces the amount of feces adhering to the skin of the specific composition. Unless otherwise specified, in these preferred embodiments, the instructions for placing the skin care composition on the hem will be applicable to the composition placed on the surface layer. Of course, the effective amount of the composition disposed on the frills depends to a large extent on the specific skin care composition used. However, the amount of the skin care composition disposed on at least a part of the body surface of the frills will range from about 0.05 mg/square inch (0.0078 mg/cm²) to about 80 mg/square inch (12 mg/cm²) It is better within, from about 1 mg/square inch (0.16 mg/cm²) to about 40 mg/square inch (6 mg/cm²), and more preferably from about 4 mg/square inch (0.6 mg/cm²) to About 26 mg/square inch (4 mg/cm2) is better. These ranges are for illustrative purposes only. Those skilled in the art should understand that the nature of the composition will determine the amount that must be deployed on it to obtain the desired skin benefit, and these equivalent values can be determined by routine experiments based on the present disclosure. .

Although the amount of the skin care composition disposed on the frills is an important aspect of the present invention, the more important one is the amount of the composition that is transferred to the wearer's skin during the use of one or more treated frills quantity. Although the amount required to be delivered to the skin to provide the desired skin benefit will depend to some extent on the nature of the composition used, the applicant has found that it is possible to deliver a relatively low amount while still providing the desired skin Effect. This is especially true for preferred compositions, such as those described in the examples.

Another benefit of the present invention is the controlled application of the skin care composition to provide the required low but effective composition amount. This is in contrast to the typical occasional hand-administered skin care medicament, where the caregiver/user will usually use a significantly larger amount of material than needed. The excess material added by hand will adversely affect the fluid handling properties of the absorbent article as a result of being transferred from the skin to the article. In fact, for certain materials, such as petroleum jelly, the amount applied by hand can actually cause a sealing effect and thus damage the skin. The benefit of the present invention is to provide a barrier to surface moisture while avoiding the closure of the skin (that is, maintaining the breathability of the skin). Therefore, the present invention can transfer the most appropriate amount of the composition to the skin to maintain and/or improve the health of the skin.

Regarding the amount of skin care composition transferred to the wearer during a period of about 3 hours (typical daytime wear time) using a treated absorbent article to wear, especially as described in Example 1 In the preferred skin care composition, at least about 0.01 mg/square inch (0.0016 mg/cm²) of the composition is transferred to the skin during the 3-hour wear period, preferably at least about 0.05 mg/square inch (0.0078 mg). /Cm²) is more preferably, at least about 0.1 mg/square inch (0.016 mg/cm²) and more preferably. Typically, during a 3-hour threading period, the amount of composition released by a treated article will range from about 0.01 mg/square inch (0.0016 mg/cm²) to about 8 mg/square inch (1.24 mg/cm²). Cm²), preferably from about 0.05 mg/square inch (0.0078 mg/cm²) to about 6 mg/square inch (0.93 mg/cm²), preferably from about 0.1 mg/square inch (0.016 mg/cm²) It is better to about 5 mg/square inch (0.78 mg/cm2).

It should be understood that among the many materials that can be effectively used for the skin care composition released to the skin according to the present invention, the materials that they are considered to be safe and effective skin care agents are the natural materials that can be used here. These materials include Class I active substances as defined by the U.S. Federal Food and Drug Administration (FDA)'s experimental final paper on skin protection drug products for human use without a physician's prescription (21 CFR §347), which currently includes : Alantoin, aluminum hydroxide gel, calamine, cocoa butter, dimethyl polysiloxane, cod liver oil (combination), glycerin, kaolin, petroleum jelly, lanolin, mineral oil , Shark liver oil, white petrolatum, talc, starch, zinc acetate, zinc carbonate, zinc oxide, etc. Other potentially effective materials are the Class III active substances defined by the US Federal Food and Drug Administration's experimental final paper (21 CFR §347) on skin protection drug products for human use without a doctor's prescription, which currently includes: Live yeast cell derivatives, allantoin hydroxyaluminum (aldioxa), aluminum acetate, microporous cellulose, vitamin D₃, Colloidal oatmeal, cysteine hydrochloride, dexpanthanol, Peruvean balsam oil, hydrolyzed protein, racemic methionine, sodium bicarbonate, vitamin A, etc. It should be understood that one or more of these non-essential substances can be used in combination with other ingredients such as those described in the text.

As will be discussed later, the skin care composition of the present invention can be effectively used to have a certain melt distribution, so that it is quite difficult to move at room temperature and stays on the surface of the frill that is in contact with the wearer (body surface) At least part of the composition will be transferable to the wearer at body temperature, and it is still not completely liquid under extreme storage conditions, although it is not necessarily so. Preferably, the composition can be easily transferred to the skin through normal contact, wearer's movement, and/or body heat. Since the composition is preferably fixed substantially on the surface of the frill that is in contact with the wearer, a relatively small amount of skin care composition is required to impart the desired skin care benefits. In addition, special barriers or wrapping materials may not be required for packaging to be effectively used for the articles of the present invention.

In a preferred embodiment, at 20°C, that is, at ambient temperature, the skin care composition that can be effectively used here is a solid, or more often a semi-solid. The so-called "semi-solid" means that the composition has the typical rheological behavior of pseudoplastic or plastic liquid. When no shear is applied, the composition can have a semi-solid appearance, but when the shear rate is increased, it can be made to flow. This is because although the composition mainly contains solid ingredients, it also includes some small amounts of liquid ingredients.

The composition of the present invention has a⁶Centipoise and about 1.0x10⁸The zero shear viscosity between centipoise is better. The zero shear viscosity is about 5.0x10⁶Centipoise and about 5.0x10⁷Between centipoise is better. The term "zero shear viscosity" used here refers to the use of a plate-cone viscometer (appropriate instrument purchased from TA Instruments Model CSL100 in New Castle, Delaware) at a relatively low Shear rate (e.g. 1.0 second^-1) Viscosity measured under. Those skilled in the art should understand that methods other than high melting point ingredients can be used to provide the measured viscosity of these compositions. This method can be achieved by measuring the viscosity of these compositions against the shear rate at a temperature of about 20°C. The graph is extrapolated to zero shear rate and measured.

The preferred composition is at least semi-solid at room temperature to minimize the movement of the composition. In addition, the composition preferably has a final melting point (100% liquid) that can be greater than 45° C. higher than possible "stress" storage conditions (such as warehouses in Arizona and carriages in Florida, etc.). Specifically, the preferred composition will have the following melt distribution:

<img file="TW508232B_D0001.tif" />

Since it is solid or semi-solid at ambient temperature, the preferred composition does not have a significant degree of flow and tendency to move to undesired locations in the absorbent article. This means that less skin care composition is needed to impart the desired therapeutic, protective and/or conditioning benefits.

In order to improve the fixability of the preferred composition, the viscosity of the formula composition should be as high as possible to prevent flowing from the hem to undesired locations in the diaper. Unfortunately, in some cases, the higher viscosity inhibits the transfer of the composition to the wearer's skin, or it may be difficult to apply without processing problems. Therefore, a balance should be achieved so that the viscosity is high enough to keep the composition on the frilled body surface, but it is not too high to prevent transfer to the wearer's skin. Appropriate viscosity of the composition measured at 60°C using a rotary viscometer (appropriate viscometer is purchased from LabLine Instruments, Inc., Model 4537 in Melrose Park, Illinois) It is typically in the range from about 1 to about 5000 centipoise, preferably from about 5 to about 300 centipoise, and more preferably from about 5 to about 100 centipoise. The viscometer is operated at 60 revolutions per minute (rpm) using the No. 2 rotary lever.

The effective active ingredients in such compositions for compositions designed to provide skin care benefits are one or more skin protectants or lubricants. The term "lubricant" as used herein refers to a substance that protects against moisture or irritation, softens, soothes, softens, coats, lubricates, moisturizes, protects and/or cleans the skin. (When it is understood that the several active substances listed above are the term "lubricant" used here). In a preferred embodiment, these lubricants will have the consistency of plastic or liquid at ambient temperature, that is, 20°C.

Representative lubricants that can be effectively used in the present invention include, but are not limited to, petroleum-based lubricants; sucrose fatty acid; polyethylene glycol and its derivatives; humectants; fatty acid ester types; alkyl ethoxylates Type; Ethoxylated fatty acid ester; Fatty alcohol type; Polysiloxane type; Propylene glycol and its derivatives; Glycerin and its derivatives, including glycerides, glycerol esters, and C₁₂-C₂₈Ethoxylated glycerides of fatty acids; triethylene glycol and its derivatives; sperm spermaceti or other waxes; fatty acids; fatty alcohol esters, especially those having 12 to 28 carbon atoms in their fatty chain, such as stearic acid; Propylene oxide fatty alcohols; fatty esters of other polyhydric alcohols; lanolin and its derivatives; kaolin and its derivatives; skin care agents in any of the above-listed papers; or mixtures of these lubricants.

Suitable petroleum-based lubricants include hydrocarbons with chain lengths from 16 to 32 carbon atoms, or mixtures of hydrocarbons. Petroleum-based hydrocarbons with these chain lengths include mineral oil (also known as "Vaseline Oil") and Vaseline (also known as "Mineral Wax", "Petroleum Jelly" and "Mineral Jelly"). Mineral oil generally refers to a relatively non-sticky hydrocarbon mixture having from 16 to 20 carbon atoms. Vaseline generally refers to a more viscous hydrocarbon mixture having from 16 to 32 carbon atoms. Petroleum jelly and mineral oil are particularly good lubricants for the composition of the present invention.

Suitable fatty acid ester type lubricants include those derived from C₁₂-C₂₈For fatty acids, use C₁₆-C₂₂Saturated fatty acids, and short chain (C₁-C₈, With C₁-C₃Preferred) Monohydric alcohol is preferred. Representative examples of these esters include methyl palmitate, methyl stearate, isopropyl laurate, isopropyl myristate, isopropyl palmitate, ethylhexyl palmitate, and mixtures thereof. Appropriate fatty acid ester lubricants can also be derived from longer chain fatty alcohols (C₁₂-C₂₈, With C₁₂-C₁₆Preferably) and shorter chain fatty acids such as esters of lactic acid, such as lauryl lactate and cetyl lactate.

Suitable alkyl ethoxylate type lubricants include C with an average degree of ethoxylation from about 2 to about 30₁₂-C₂₂Fatty alcohol ethoxylates. The fatty alcohol ethoxylate lubricant is preferably selected from the group including lauryl, cetyl, and stearyl ethoxylates having an average degree of ethoxylation from about 2 to about 23, and mixtures thereof. Representative examples of these alkyl ethoxylates include laureth-3 (laureth-3) (the ethoxylated lauryl with an average degree of ethoxylation of 3), laureth-23 (with an average ethoxylation of 23) Degree of ethoxylated lauryl), cetyl ether-10 (cetyl alcohol ethoxylate with an average degree of ethoxylation of 10) and stearyl ether-10 (stearyl ether with an average degree of ethoxylation of 10 Alcohol ethoxylate). When used, these alkyl ethoxide lubricants are typically based on the weight ratio of the alkyl ethoxide lubricant to the petroleum-based lubricant from about 1:1 to about 1:5. Agents, such as petrolatum, are used in combination, preferably from about 1:2 to about 1:4.

Appropriate fatty alcohol type lubricants include C₁₂-C₂₂Fatty alcohol, as C₁₆-C₁₈Fatty alcohol is preferred. Representative examples include cetyl alcohol and stearyl alcohol, and mixtures thereof. When used, these fatty alcohol lubricants are typically combined with petroleum-based lubricants, such as petroleum jelly, at a weight ratio of fatty alcohol lubricants to petroleum-based lubricants ranging from about 1:1 to about 1:5. It is preferably used from about 1:1 to about 1:2.

Other suitable types of lubricants used here include polysiloxane compounds. Generally speaking, suitable polysiloxane materials for use in the present invention include materials with monomeric siloxane units having the following structure:

<img file="TW508232B_D0002.tif" />

Among them, for each independent siloxane monomer unit, R¹And R²Each can independently be hydrogen or any alkyl, aryl, alkenyl, alkaryl, aralkyl, cycloalkyl, halogenated hydrocarbon, or other radical. Any of these bases may be substituted or unsubstituted. R of any specific monomer unit¹And R²The basis may be different from the corresponding functionality of the next connected monomer unit. In addition, the polysiloxane may be linear, branched, or have a cyclic structure. Kegan R¹And R²It can also independently be other silicon-containing functionalities, such as, but not limited to, siloxane, polysiloxane, silane, and polysiloxane. Kegan R¹And R²Any of a variety of organic functionalities can be included, including, for example, alcohol, carboxylic acid, phenyl, and amine functionalities.

Exemplary alkyl radicals are methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, decyl and the like. Exemplary alkenyl radicals are vinyl, allyl and the like. Exemplary aryl radicals are phenyl, diphenyl, phenyl, etc. An exemplary alkyl aryl radical is<img file="TW508232B_D0003.tif" />Group, stubble group, ethyl phenyl group and so on. Exemplary aralkyl radicals are group, α-phenethyl, β-phenethyl, α-phenbutyl and the like. Exemplary cycloalkyl radicals are cyclobutyl, cyclopentyl, cyclohexyl and the like. Exemplary halogenated hydrocarbon radicals are chloromethyl, bromomethyl, tetrafluoroethyl, fluoroethyl, trifluoroethyl, trifluoro<img file="TW508232B_D0003.tif" />Base, hexafluoride base and so on.

The change in the viscosity of the effective polysiloxane can be as wide as the generally variable viscosity range of the polysiloxane, as long as the polysiloxane is flowable or can be applied to the absorbent article to make it flowable. This includes, but is not limited to, as low as 5 centistokes (measured by a glass viscometer at 37°C) to about 20,000,000 centistokes. Polysiloxane preferably has a viscosity of from about 5 to about 5,000 minutes of Stoke at 37°C, more preferably from about 5 to about 2,000 minutes of Stokes, and most preferably from about 100 to about 1000 minutes Stokes. High-viscosity polysiloxanes that are inherently resistant to flow can be used, for example, by using solvents such as hexane-which are only listed as examples-to emulsify polysiloxanes in surfactants or provide polysiloxanes The solution method, and effectively accumulate on the absorbent article. The special method of applying polysiloxane lubricants to absorbent articles is discussed in more detail below.

The preferred polysiloxane compound used in the present invention was published in U.S. Patent No. 5,059,282 (Ampulski et al.) issued on October 22, 1991, which is incorporated herein as a reference. Particularly preferred polysiloxane compounds used as lubricants in the composition of the present invention include phenyl functional polymethylsiloxane compounds (for example, Dow Corning 556 cosmetic grade fluid: polyphenylmethylsiloxane Alkyl) and cetyl or stearyl functionalized polydimethylsiloxanes, such as Dow 2502 and Dow 2503 polysiloxane liquids, respectively. In addition to these substitutions with phenyl functions or alkyl groups, effective substitution can be accomplished with amine, carboxyl, hydroxyl, ether, polyether, aldehyde, ketone, amide, ester, and thiol groups. Among these effective substituents, the group containing phenyl, amine, alkyl, carboxyl, and hydroxyl group is better than other groups; and phenyl functional group is the best.

Suitable humectants include glycerin, propylene glycol, sorbitol, trihydroxystearate and the like.

When a lubricant is present, the amount of lubricant that can be included in the composition will depend on many factors, including the particular lubricant used, the desired skin benefit, other ingredients in the composition, and similar factors. The composition will contain from 0 to about 100% lubricant by total weight. The composition preferably contains from about 10 to about 95 weight percent of lubricant, more preferably from about 20 to about 80 weight percent, and most preferably from about 40 to about 75 weight percent.

Another optional, but particularly critical ingredient that can be effectively used in certain skin care compositions of the present invention is the ability to fix the composition (including preferred lubricants and/or other skin conditioning/protective agents) on the treated folds. Reagents at the desired location within or above the edge. Since some of the preferred lubricants in the composition have a plastic or liquid consistency at 20°C, they have a tendency to flow or move even when subjected to moderate shear. When the lubricant is applied to the body surface or other locations of the frills, especially when it is in a molten or molten state, it will not remain largely in or on the treated area. Conversely, the lubricant will tend to move and flow to undesired areas of the absorbent article.

Specifically, if the lubricant moves to the inside of the object, it will affect the absorption of the absorbent core due to the hydrophobic properties of many lubricants and other skin conditioning agents that can be effectively used in the composition of the present invention. Undesirable effects. It also means that a lot of lubricant must be applied to the frills to obtain the desired benefits. Increasing the amount of lubricant will not only increase the cost, but will also increase the undesired effect on the absorption of the core material and the undesired transfer of the composition during the processing/conversion process of the treated frill.

The fixing agent counteracts the tendency of the lubricant to move or flow by keeping the lubricant mainly on the surface or area of the frill on which the composition is applied. This is believed to be due in part to the fact that the fixing agent increases the melting point and/or viscosity of the composition higher than that of the lubricant. Since the fixing agent is better miscible with the lubricant (or dissolved in the lubricant or dispersed in the lubricant by a suitable emulsifier), it makes the lubricant sink into the surface of the frills or the surface where it is applied. On the surface of the wearer that the area touches.

It can also be advantageous to "lock" the fixative to the wearer who is in contact with the surface or area of the frill to which it is applied. This can be achieved by using a curing agent that sets up (ie, cures) quickly when applied to the frill. In addition, the treated frills can accelerate the crystallization of the fixing agent by using external cooling such as blowers, fans, cold rolling, etc.

In addition to being miscible with (or dissolving in) the lubricant, it would be preferable for the fixative to have a melt distribution that provides a composition that is solid or semi-solid at ambient temperature. In this regard, the preferred fixative will have a melting point of at least about 35°C. Therefore, the fixative itself will not have a tendency to move or flow. The preferred fixative will have a melting point of at least about 40°C. Typically, the fixative will have a melting point in the range from about 50°C to about 150°C.

When used, the fixing agent that can be effectively used herein can be selected from any of a variety of agents, as long as the preferred properties of the skin care composition provide the skin benefits described here. The preferred fixative will contain one component selected from the group consisting of: C₁₄-C₂₂Fatty alcohol, C₁₂-C₂₂Fatty acids, and C with an average degree of ethoxylation from about 2 to about 30₁₂-C₂₂Fatty alcohol ethoxylates, and mixtures thereof. Preferred fixatives include C₁₆-C₁₈Fatty alcohol is best selected from crystalline high melting point materials including cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof. (The linear structure of these materials can accelerate the curing on the treated frills.) The mixture of cetyl alcohol and stearyl alcohol is particularly preferred. Other preferred fixatives include C₁₆-C₁₈Fatty acids, the best ones are selected from palmitic acid, stearic acid, and mixtures thereof. The mixture of palmitic acid and stearic acid is particularly preferred. Still other preferred fixatives include C having an average degree of ethoxylation from about 5 to about 20₁₆-C₁₈Fatty alcohol ethoxylates. Fatty alcohols, fatty acids and fatty alcohols are preferably straight chains. These preferred fixatives, such as C₁₆-C₁₈Fatty alcohol significantly increases the crystallization rate of the composition, and enables the composition to quickly crystallize on the surface of the substrate.

Other types of fixatives that can be used for this include polyhydroxy fatty acid esters, polyhydroxy fatty acid amides, and mixtures thereof. The preferred esters and amides will have more than three free hydroxyl groups in the polyhydroxyl moiety, and they are typically nonionic. Due to the possible skin sensitivity of the person using the frills of the applied composition, these esters and amides should also be quite mild and non-irritating to the skin.

Suitable polyhydroxy fatty acid esters used in the present invention will have the following chemical formula:

<img file="TW508232B_D0005.tif" />

Where R is C₅-C₃₁Hydrocarbyl, with straight chain C₇-C₁₉Alkyl or alkenyl is preferred, straight chain C₉-C₁₇Alkyl or alkenyl is better, straight chain C₁₁-C₁₇Alkyl or alkenyl is best, or a mixture thereof; Y is a polyhydroxyhydrocarbyl group having a hydrocarbyl chain and at least 2 free hydroxyl groups directly connected to the chain; and n is at least 1. Appropriate Y groups can be derived from polyols such as glycerol and isoprene; sugars such as raffinose, maltodextrose, galactose, sucrose, glucose, xylose, fructose, malcose, lactose, mannose Sugars and erythrose; sugar alcohols such as erythritol, xylitol, maltitol, mannitol, and sorbitol; and anhydrides of sugar alcohols such as sorbitan.

A suitable polyhydroxy fatty acid ester for use in the present invention includes a certain sorbitan ester with C₁₆-C₂₂Sorbitan esters of saturated fatty acids are preferred. Due to the typical manufacturing method of these sorbitan esters, they usually include mixtures of mono-, di-, tri-, etc. esters. Representative examples of suitable sorbitan esters include sorbitan palmitate (e.g. SPAN40), sorbitan stearate (e.g. SPAN 60), and sorbitan sorbate esters, which include One or more of mono-, di- and tri-basic esters of sorbitan esters, such as mono-, di-, and tri-palmitic acid sorbitan esters, mono-, di-, and tri-stearic acid sorbitan esters, Mono-, di-, and tri-sorbitan behenate and mixed tallow fatty acid sorbitan mono-, di- and tri-basic esters. Mixtures of different sorbitan esters, such as sorbitan palmitate and sorbitan stearate, can also be used. A particularly preferred sorbitan ester is sorbitan stearate, which is typically a mixture of mono-, di- and tri-esters (plus some quaternary esters) such as SPAN 60, and Lonza (Lonza, Inc.) sells sorbitan stearate under the trade name GLYCOMUL-S. Although these sorbitan esters typically include mixtures of mono-, di-, and tri-esters, plus some quaternary esters, mono- and di-esters are usually the main species in these mixtures.

Another suitable polyhydroxy fatty acid ester for use in the present invention includes certain glycerol monoesters, with C₁₆-C₂₂Monoglycerides of saturated fatty acids are preferred, such as glyceryl monostearate, glyceryl monopalmitate, and glyceryl monobehenate. Again like sorbitan esters, the monoglyceride mixture will typically contain some di- and tri-basic esters. However, for effective use in the present invention, such mixtures should mainly contain monoglyceride species.

Another suitable polyhydroxy fatty acid ester for use in the present invention includes certain sucrose fatty acid esters, with the C of sucrose₁₂-C₂₂Saturated fatty acid esters are preferred. Sucrose mono- and dibasic esters are particularly preferred, and they include sucrose mono- and distearate and sucrose mono- and dilaurate.

Suitable polyhydroxy fatty acid amides used in the present invention will have the following chemical formula:

<img file="TW508232B_D0006.tif" />

Where R¹H, C₁-C₄Hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, methoxyethyl, methoxypropyl or mixtures thereof, with C₁-C₄Alkyl, methoxyethyl or methoxypropyl is preferred, C₁Or C₂Alkyl or methoxypropyl is better, C₁Alkyl (ie methyl) or methoxypropyl is best; and R²Is C₅-C₃₁Hydrocarbyl, with straight chain C₇-C₁₉Alkyl or alkenyl is preferred, straight chain C₉-C₁₇Alkyl or alkenyl is better, straight chain C₁₁-C₁₇Alkyl or alkenyl is best, or a mixture thereof; and Z is a polyhydroxyhydrocarbyl group having a linear hydrocarbyl chain and at least 3 hydroxyl groups directly connected to the chain. See U.S. Patent No. 5,174,927 (Honsa) issued on December 29, 1992 (incorporated herein as a reference), which published these polyhydroxy fatty acid amides and their preparation methods.

The Z group is preferably derived from a reducing sugar in the reductive amination reaction; the sugar group is the best. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose. High dextrose corn syrup, high fructose corn syrup, and high maltose corn syrup can be used, as well as the individual sugars listed above. These corn syrups can produce a mixture of sugar components of the Z group.

The Z group is selected from including -CH₂-(CHOH)_n-CH₂OH, -CH(CH₂OH)-[(CHOH)_n-1]-CH₂OH, -CH₂OH-CH₂-(CHOH)₂(CHOR³)(CHOH)-CH₂OH, where n is an integer from 3 to 5, and R³It is preferably H or a cyclic or aliphatic chain monosaccharide. The best is the glycosyl with n being 4, especially -CH₂-(CHOH)₄-CH₂OH.

In the above chemical formula, R¹It can be, for example, N-methyl, N-ethyl, N-propyl, N-isopropyl, N-butyl, N-2-hydroxyethyl, N-methoxypropyl or N-2- Hydroxypropyl. R²It can be selected to provide, for example, cocamides, stearylamine, oleamide, laurylamide, myristylamide, decanamide, palmitamide, tallowamide, and the like. The Z group can be 1-deoxyglucosyl, 2-deoxyfructosyl, 1-deoxymaltosyl, 1-deoxylactosyl, 1-deoxygalactosyl, 1-deoxymannosyl, 1 -Deoxymaltotriose base and so on.

The best polyhydroxy fatty acid amides have the following general formula:

<img file="TW508232B_D0007.tif" />

Where R¹Is methyl or methoxypropyl; R²Is C₁₁-C₁₇Straight chain alkyl or alkenyl. It includes N-lauryl-N-methylglucamide, N-lauryl-N-methoxypropylglucamide, N-cocoyl-N-methylglucamide, N-cocoyl-N- Methoxypropyl glucamide, N-palmityl-N-methoxypropyl glucamide, N-tallow-N-methyl glucamide, or N-tallow-N-methoxypropyl glucamide amine.

As previously explained, certain fixatives may require emulsifiers to dissolve in the lubricant. This is especially true for certain glucamides, such as N-alkyl-N-methoxypropyl glucamides having an HLB value of at least about 7. Suitable emulsifiers will typically include those having an HLB value of less than about 7. In this connection, previously described sorbitan esters, such as sorbitan stearate having an HLB value of about 4.9 or less, have been found to be effective for dissolving these glucamide fixatives in petrolatum. Other suitable emulsifiers include stearyl ether-2 (in accordance with the chemical formula CH₃(CH₂)₁₇(OCH₂CH₂)_nOH polyethylene glycol ether of stearyl alcohol, where n has an average value of 2), sorbitan tristearate, isosorbide laurate, and glyceryl monostearate. The emulsifier may be included in an amount sufficient to dissolve the fixing agent in the lubricant, so that a substantially homogeneous mixture is obtained. For example, generally will not melt into a single-phase mixture of N-coco-N-methylglucamide and petrolatum about 1:1 mixture, when adding 20% stearyl ester-2 and tristearic acid dehydration The 1:1 mixture of sorbitol esters is used as an emulsifier and can be melted into a single-phase mixture.

Other types of ingredients that can be used alone or in combination with the above-mentioned fixatives as fixatives include waxes such as carnauba wax, ozokerite, beeswax, candelilla wax, paraffin, ozokerite, esparto, and coconut wax , Rezowax, isoparaffin, and other known mineral waxes or mineral waxes. The high melting point of these materials helps to fix the composition on the desired surface or location of the hem. In addition, microcrystalline wax is an effective fixative. Microcrystalline wax can promote the "lock" of low molecular weight hydrocarbons in the skin care composition. The wax is preferably paraffin wax. An example of a particularly preferred fixative is paraffin wax such as Parrafin SP 434 available from Strahl and Pitsch Inc. (PO Box 1098 West Babylon, NY 11704).

The amount of non-essential fixative that can be included in the composition will depend on many factors, including the active substance used (e.g. lubricant), the special fixative used, and if any, other ingredients in the composition , Whether an emulsifier is needed to dissolve the fixative in other ingredients and similar factors. When a fixative is present, the composition will typically contain from about 5 to about 90% of the fixative. The composition preferably contains from about 5 to about 50% of the fixative, most preferably from about 10 to about 40%.

The composition may include other ingredients typically found in emulsions, creams, ointments, lotions, powders, suspensions, etc. of this type. These ingredients include water, viscosity modifiers, fragrances, antibacterial active substances, antiviral agents, vitamins, pharmaceutical active substances, film formers, aloe vera, deodorants, opacifiers, hemostatic agents, solvents, preservatives Agent and so on. In addition, stabilizers such as cellulose derivatives, proteins and lecithin can be added to increase the shelf life of the composition. All these materials are well-known in the art as additives for these formulations, and they can be used in the composition used in this in an appropriate amount.

If water-based skin care compositions are used, preservatives will be required. Suitable preservatives include propyl p-hydroxybenzyl alcohol, methyl p-hydroxybenzyl alcohol, alcohol, benzylkonnium, calcium phosphate, BHT, or acids such as citric acid, tartaric acid, maleic acid, lactic acid, apple Acid, benzoic acid, salicylic acid, etc. Suitable adhesion promoters include certain agents that are described as effective fixatives. Other suitable viscosity-increasing agents include alkyl galactomannan, silica, talc, magnesium silicate, sorbitol, colloidal silica, aluminum magnesium silicate, zinc stearate, lanolin alcohol, sorbitol Alcohol, sesquioleate, cetyl hydroxyethyl cellulose and other modified cellulose. Suitable solvents include propylene glycol, glycerin, cyclomethicone, polyethylene glycol, hexylene glycol, glycols, and polyhydroxy-based solvents. Suitable vitamins include A, D-3, E, B-5, and E acetate.

C.<u>Application of skin care composition to frills (or other base materials)</u>

When preparing the treated frill product according to the present invention, the skin care composition is preferably applied to the body surface of the frill (ie, the surface in contact with the wearer). However, because certain skin care compositions published here can penetrate or move through certain frill materials published here, the skin care composition can also be applied to the surface of frilled clothing, so that an effective amount of skin care can be applied. The composition is disposed on the surface of the body. In fact, in some cases, this may be a better way to obtain the benefits of fully treated frills (ie, both sides are treated) by applying it to only one surface.

Any method that distributes various application methods of lubricating materials having a melt or liquid consistency can be used to apply the skin care composition to the frills. Suitable application methods include coating (e.g., gravure roll or slot die coating), spraying, printing (e.g. offset printing), extrusion, or a combination of these or other application techniques (e.g., spraying the skin care composition on a rotating surface, Such as calendering roller, and then through contact transfer, and the skin care composition is applied to the body surface of the diaper hem). If necessary, the skin care composition can also be applied to both sides of the frill.

The skin care composition is applied to the frills in such a way that the frills do not become oversaturated by the skin care composition. If an excessive amount of skin care composition is used to treat the frills, the skin care composition may move to an undesired position of the article, for example, it may move into the interior of the article, where it may adversely affect the absorption power of the underlying absorbent core. In addition, saturation of the frills is not necessary to obtain the benefits of the therapeutic and/or protective skin care composition.

The minimum amount of the skin care composition to be applied to the frills is the minimum amount that can effectively reduce skin redness, diaper rash, erythema, skin irritation, or other undesirable skin conditions. (The composition can also effectively reduce the adhesion of feces to the wearer's skin.) Of course, the effective amount of the skin care composition will mainly depend on the specific skin care composition used. Since the lubricant is essentially fixed on the body surface of the frills, less skin care composition is required to impart the desired skin care benefits. These relatively low-value skin care compositions can appropriately impart the desired therapeutic and/or protective benefits of the skin care composition to the frills.

The skin care composition can be uniformly and equally applied to either or both sides or parts of the frill. The skin care composition can also be applied in a pattern (ie stripes, boxes, dots, spirals, etc.). The skin care composition is preferably left in the frill area that will mostly be in contact with the wearer when used. As explained in the following examples, the skin care composition is best applied to the discontinuous part of the frill in stripes, for example, the 1.4-inch width (the width of the diaper) at the bifurcated part of the two legs roughly arranged on the body surface of the frill. Cover the far side edge of the ruffle) and 11.75-inch long (diaper longitudinal) patch.

It is also possible to apply the skin care composition unevenly on either or both surfaces of the frills. The so-called "unevenness" means that the amount, distribution pattern, etc. of the skin care composition can vary on the frill surface. For example, certain portions of the treated surface of the frills may have larger or smaller amounts of skin care composition, including surface portions that do not have any skin care composition thereon.

The skin care composition can be applied to the hem or to the base that forms part of the hem at any time during the assembly process. For example, the skin care composition can be applied to the hem of the finished product before packaging. The skin care composition can also be applied to the frills or base material before combining with other raw materials to form a finished product, changing positions before combining with other object components or as a pretreatment raw material.

The skin care composition is typically applied from its melt to the frills. Since the skin care composition melts at significantly higher than ambient temperature, it is usually applied to the frills by heat application. Typically, the skin care composition is heated to a temperature in the range from about 35° to about 100°C, preferably from 40° to about 90°C, before being applied to the frills. Once the molten skin care composition is applied to the frills, it is allowed to cool and solidify to form a cured coating or film disposed on the surface of the frills. The application method is preferably designed to promote the cooling/establishment of the composition.

When applying the skin care composition of the present invention to frills, slot die coating, extrusion veneer, gravure roll coating, and spray methods are preferred. Figure 5 illustrates a preferred method of applying the skin care composition to the diaper barrier ribs in continuous or intermittent contact with the slit die during the switching operation. Referring to FIG. 5, the conveyor belt 1 advances on the rollers 3 and 4 in the direction indicated by the arrow to become the return conveyor belt 2. The conveyor belt 1 transports the diaper 5 without lotion to the contact slot die coating station 6, where the barrier hemming element 7 is coated with a hot, molten (for example, 65°C) skin care composition. After leaving the slot die coating station 6, the diaper 5 becomes a diaper 8 with processed barrier hem. The amount of skin care composition transferred to the barrier frill element 7 is controlled by the following factors: (1) the rate at which the molten skin care composition is applied from the contact slot die coating station 6; and/or (2) the conveyor belt 1 is coated on the slot die The moving speed of station 6; and/or (3) the positioning of the contact slot die coating station. (If necessary, the coating station can be positioned to coat the part of the barrier frill element 7 and the surface layer 38, so that both the frill and the surface layer are equipped with a skin care composition).

Figure 6 illustrates another preferred method of applying the skin care composition to the diaper barrier hem before combining the hem with other raw materials into a finished product. Referring to Figure 6, the non-woven barrier frill base material 1 is unwound from the mother barrier wall frill roll 2 (rotating in the direction shown by arrow 2a), and advances to the contact slot die coating station 6, where one side of the base material is coated Hot, molten (e.g. 65°C) skin care composition. After leaving the slot die coating station 6, the non-woven barrier frill base material 1 becomes the processed barrier frill base material indicated by 3. The processed barrier frill base material 3 then advances around the roller 4 and the roller 8, and then is wound on the mother roll 10 (rotating in the direction indicated by the arrow 10a). The treated base material is then applied to the base of the diaper, and the barrier frill element of the barrier frill is formed in the conversion operation.

D.<u>Skin care composition on the surface and frills</u>

As shown in FIG. 7, the first skin care composition can be arranged on the surface layer, and the second skin care composition can be arranged on one or more hems. It has been found that adding the skin care composition to both the surface layer and the frills will perform more effectively than either one alone. The combination of the treated surface layer and the treated frills provides a larger skin area where the skin care composition can be transferred. By allowing a larger area of skin to have the skin care composition transferred to it, there will be a greater chance of maintaining all parts of the wearer's skin in a healthier state.

As mentioned above, the first skin care composition and the second skin care composition can have the same formula. However, it has been found that if the first skin care composition is different from the second skin care composition, the diaper can be designed to provide specific skin care benefits to specific parts of the wearer's skin. For example, since the surface layer is typically in contact with the wearers genitals and buttocks during use, it can be formulated on the surface layer, for example, the first skin care composition that can provide prevention and/or treatment of diaper rash . Since the frills tend to come into contact with the wearer's waist and legs, the second skin care composition can be formulated specifically, for example, to provide friction/erythema reduction benefits. Therefore, a specific part of the diaper can have a skin care composition with a clear formula to target a specific area of the wearer's skin to provide skin care treatment or maintenance. In this way, the design of the diaper has great flexibility, and the manufacturer can provide specially designed products that meet the needs of many different consumers.

Another change in the formula of the skin care composition can come from the function of configuring the components of the skin care composition. For example, frills are typically designed to contain and limit urine and soft and sticky feces in the diaper. It may therefore be desirable for the frill to be hydrophobic, especially impermeable to liquids, to prevent liquids from passing through the material. If the skin care composition is also hydrophobic, it can help the frills to prevent liquid from passing through the frills. Conversely, the surface layer must be highly liquid permeable so that urine or menstruation can quickly pass through the surface layer to the absorbent core. Placing a hydrophobic skin care composition on the surface layer will degrade the performance of the surface layer. Therefore, it may be more desirable to arrange a hydrophilic skin care composition on the surface layer to maintain the performance of the surface layer. Therefore, in some specific examples, it may be desirable that at least a portion of the skin care composition disposed on the surface layer is made of a hydrophilic material to promote the rapid transfer of liquid (such as urine) through the surface layer. Likewise, it may be desirable for the skin care composition to be sufficiently moisturized to ensure that the liquid can quickly transfer through the surface layer. Alternatively, a hydrophobic skin care composition can be used, as long as its application method allows the fluid handling properties of the surface layer to be appropriately maintained. For example, applying the composition unevenly to the surface layer is one way to achieve this goal. An example of uneven application was published in U.S. Patent Application No. 08/908,852 (P&amp;G Case 5494CR) filed by Roe et al. on August 8, 1997, "Diaper having a surface layer with lotion ALotioned Topsheet)", which is incorporated into this article as reference materials.

When a hydrophilic composition is required, depending on the specific ingredients used in the composition, a hydrophilic surfactant (or a mixture of hydrophilic surfactants) may or may not be needed to improve wettability. For example, certain fixatives, such as N-cocoyl-N-methoxypropyl glucamide, have an HLB value of at least about 7 and do not add hydrophilic surfactants to adequately wet. Other fixatives, such as C with an HLB value lower than about 7₁₆-C₁₈Fatty alcohol, when the composition is applied to the surface layer, it may be necessary to add a hydrophilic surfactant to improve wettability. Similarly, if a hydrophilic composition is required, a hydrophobic lubricant, such as petrolatum, may require the addition of a hydrophilic surfactant. Of course, when it is desired to consider the surface contacting the wearer to be hydrophobic, or when the fluid handling properties of the material are properly maintained through other means (such as uneven application), the concern about wettability is not an important factor.

Appropriate hydrophilic surfactants can be miscible with other ingredients of the skin care composition, and it would be better to form a blended mixture. Due to the possible skin sensitivity of people who use disposable absorbent products with the composition applied, these surfactants should also be quite mild and non-irritating to the skin. Typically, these hydrophilic surfactants are non-ionic, so as not only to be non-irritating to the skin, but also to avoid undesirable effects on any other structures in the treated diaper. For example, reducing the tensile strength of paper towel laminates, the adequacy of adhesive bonding, and so on.

Appropriate non-ionic surfactants can be substantially immobile after the composition is applied to the surface layer, and they typically have an HLB value in the range from about 4 to about 20, preferably from about 7 to about 20 . In order not to move, these nonionic surfactants will typically have a melting temperature that is greater than the temperatures commonly encountered during the storage, transportation, sale, and use of disposable absorbent products (e.g., at least about 30°C). In this connection, it is preferable that these nonionic surfactants have a melting point similar to that of the fixing agent described previously.

Suitable nonionic surfactants for use in the composition to be applied to the surface layer include alkyl sugars; alkyl sugars ethers, as described in U.S. Patent 4,011,389 issued on March 8, 1977 (Langdon et al.) , Which is incorporated herein as reference; alkyl polyethoxylates such as Pegosperse1000MS (available from Ronsa Corporation, Fair Lawn, New Jersey) with an average degree of ethoxylation from about 2 to about 20 Of C₁₂-C₁₈The ethoxylated sorbitan mono-, di- and/or tribasic esters of fatty acids are preferably from about 2 to about 10, such as TWEEN 60 (dehydration of stearic acid with an average degree of ethoxylation of about 20). Sorbitol ester) and TWEEN 61 (sorbitan ester of stearic acid with an average degree of ethoxylation of about 4), and condensation products of fatty chain alcohols and ethylene oxide from about 1 to about 54 moles . The alkyl chain of aliphatic alcohol is typically linear (linear) and contains from about 8 to about 22 carbon atoms. Particularly preferred is the condensation product of an alcohol having an alkyl group containing from about 11 to about 22 carbon atoms and about 2 to about 30 moles of ethylene oxide per mole of alcohol. Examples of these ethoxylated alcohols include the condensation products of myristyl alcohol and 7 moles of ethylene oxide per mole, coconut alcohol (a mixture of fatty alcohols with alkyl chain lengths ranging from 10 to 14 carbon atoms) and Condensation product of about 6 moles of ethylene oxide. Many suitable ethoxylated alcohols are commercially available, including TERGITOL 15-S-9 (condensation product of C11-C15 linear alcohol and 9 moles of ethylene oxide) sold by Union Carbide Corporation; KYRO EOB (condensation product of C13-C15 linear alcohol and 9 moles of ethylene oxide) sold by Prot and Gamber, and NEODOL brand surfactant sold by Shell Chemical Co., especially NEODOL 25-12 (condensation product of C12-C15 linear alcohol and 12 moles of ethylene oxide) and NEODOL 23-6.5T (distilled (straight run) to remove some non-alcoholic C12-C13 linear alcohols and 6.5 Condensation product of mol ethylene oxide), and especially the surfactant sold under the brand name PLURAFAC sold by BASF Group, especially PLURAFAC A-38 (condensation product of C18 linear alcohol and 27 mol ethylene oxide). (Some hydrophilic surfactants, especially ethoxylated alcohols such as NEODOL 25-12, can also be used as ethoxylated alkyl ester lubricants). Other examples of preferred ethoxylated alcohol surfactants include ICI's Brij type surfactants and mixtures thereof, among which Brij 72 (ie stearyl ether-2) and Brij 76 (ie stearyl -10) are particularly preferred . In addition, a mixture of cetyl alcohol and stearyl alcohol that has been ethoxylated to an average degree of ethoxylation of from about 10 to about 20 can also be used as the hydrophilic surfactant.

Another type of suitable surfactant for use in the composition includes Aerosol OT, a dioctyl ester of sodium sulfosuccinate sold by the American Cyanamid Company.

Yet another type of suitable surfactant for use in the composition includes polysiloxane copolymers such as General Electric SF 1188 (copolymer of polydimethylsiloxane and polyoxyalkylene ether) and General Electric SF1228 (poly Silicone Oxide Polyether Copolymer). These silicone surfactants can be used in combination with other types of hydrophilic surfactants discussed above, such as ethoxylated alcohols. These silicone surfactants have been found to be effective at concentrations as low as 0.1% by weight of the composition, and more preferably from about 0.25 to about 1.0%.

In the case that a hydrophilic composition is required, the amount of hydrophilic surfactant required to increase the wettability of the composition to the desired amount will depend in part on the HLB value and amount of the fixing agent (if used). It depends on the HLB value of the surfactant used and similar factors. When it is necessary to increase the wettability properties of the composition, the composition may contain from about 0.1 to about 50% of a hydrophilic surfactant. When it is necessary to increase the wettability, the composition preferably contains from about 1 to about 25% of the hydrophilic surfactant, and most preferably from about 10 to about 20%.

The applicant found that the maintenance or improvement of healthy skin under the absorbent article can be achieved by repeated use within a period of time (such as several days) under normal use conditions (such as touching, moving, and nursing staff after using the article). Treatment, body heat, etc.) transferred to the wearer's absorbent article treated with two or more skin care compositions, such as the absorbent article described here. In this connection, the method of maintaining or improving the skin health in the area covered by the absorbent article includes the following steps:

(a) For the wearer, use the first skin care composition that provides treatment and/or skin protection benefits when transferred to the skin, and the second skin care composition that provides second skin benefits when transferred to the skin Absorbent article

(b) transferring at least a portion of the first skin care composition and the second skin care composition to the wearer when wearing the belt; and

(c) Repeat steps (a) and (b) with one or more additional objects with sufficient frequency, as opposed to being covered by equivalent absorbent objects that do not contain the first skin care composition and the second skin care composition The skin maintains or improves the health of the skin covered by the absorbent, and does not need to be applied to the skin protective agent by hand (for example by a caregiver or wearer).

The key to this method is to use an absorbent article with two or more skin care compositions, and the recurrent cumulative release of the first skin care composition and the second skin care composition to the wearer's skin to maintain or improve skin health The applicant also found that the relatively low amount of release of the composition of each wearing article is sufficient to obtain the skin benefits obtained by the novel method of cumulative release.

The object used in the method provides a usable source that enables the skin care composition to be continuously transferred to the skin over time. The transferred composition accumulates on the skin surface to initiate and maintain protective activity. As used objects are discarded and replaced with new objects, this cycle is repeated to further accumulate the composition beyond what can be released by the single or original object itself. It is known that certain ingredients used in preferred skin care compositions can penetrate the stratum corneum (e.g. petrolatum, which is better for its use here). Therefore, even if a certain amount of the composition is removed after cleaning, bathing, etc., or even if the use of the treated article is temporarily stopped, the benefits of certain skin care compositions can still be retained on the user. With the resumption of use of the treated article before all the benefits of the composition have disappeared, the user will be able to obtain the benefits of reducing skin redness and/or rash more quickly than the user who has not used the treated article.

As mentioned earlier, it is generally believed that the skin under the absorbent article is more susceptible to degradation of the skin condition. Typically, the manifestations of these skin conditions include redness (also known as skin redness) and/or rash. Therefore, the applicant hereby describes a method for maintaining or improving the skin health in the area covered by the absorbent article, wherein when compared to the skin covered by an equivalent absorbent article that does not contain the skin care composition, the expectation of this method The goal is to reduce or avoid skin redness and/or rash.

<u>A clear description of the preparation of the hem and surface layer of the treated diaper according to the present invention</u>

The following is a clear description of the treatment frills and/or surface layer or base material of the skin care composition according to the present invention.

<u>Example 1</u>

A.<u>Preparation of skin care composition</u>

The skin care composition (composition A) is prepared by mixing the following molten (ie liquid) ingredients together: Vaseline (purchased from Witco Corp., Greenwich, Connecticut, Perfecta) ), stearyl alcohol (purchased from CO1897 of Prote and Gamber Co., Cincinnati, Ohio), and aloe extract (purchased from South Hackensack, New Jersey, Madis Botanicals, Inc.) .) of Veragel Lipoid in Kaydol).

The weight percentages of these ingredients are shown in Table I below:

<img file="TW508232B_D0008.tif" />

B.<u>Preparation of treated diaper leg ruffles via hot melt coating</u>

Place skin care composition A in a heating bath operating at a temperature of 170°F. Then apply the composition directly on the body surface of the barrier hem of the diaper with a contact coater (ie, MeltexEP45 hot melt adhesive coater head operating at 170°F). The distal edge of the barrier hem) and the 11.75-inch long (diaper longitudinal direction) area, the patch is centered in the longitudinal direction in the base, so that one or both ends of each spacer elastic element are covered by the skin care composition. Addition value = 0.0116 g/square inch (18.0 g/square meter). The spacer elastic element is operatively bonded to the barrier hemming element by a specially formulated adhesive, such as Findley H9254 previously discussed in the article to avoid creep.

<u>Example 2</u>

Then, the skin care composition A (prepared according to the procedure in Example 1) was applied to the body surface of the barrier hem of the diaper with a width of 1.4 inches on each barrier hem (the width of the diaper, so as to cover the barrier hem of the diaper). The fringe on the far side) extends over the entire length of the barrier hem. Addition value = 0.0116 g/square inch (18 g/square meter).

<u>Example 3</u>

Then apply the skin care composition A (prepared according to the procedure in Example 1) on the body surface of the barrier hem of the diaper on each barrier hem and 1.4 inches in width of the 8-inch long (diaper longitudinal) area ( The diaper is transversely so as to cover the stripes of the distal edge of the barrier hem. The patch is centered on the contraction area of the barrier hem, so that each end of the spacer elastic element is not covered by the skin care composition. Addition value = 0.0077 g/square inch (12.0 g/square meter).

<u>Example 4</u>

A.<u>Preparation of skin care composition</u>

An anhydrous skin care composition (Skin Care Composition B) is prepared by mixing the following molten (i.e. liquid) ingredients: mineral oil (Carnation White Mineral Oil, USP, manufactured by Weike Group); and Cetearyl Alcohol ( A hybrid straight chain C manufactured by Prot and Gamber under the trade name TA-1618₁₆-C₁₈Primary alcohol). The weight percentages of these ingredients are shown in Table II below:

<img file="TW508232B_D0009.tif" />

<u>B. Preparation of treated leg ruffles by hot melt coating</u>

Place skin care composition B in a heating bath operating at a temperature of 170°F. Then use a contact coater (ie a Meltex EP45 hot melt adhesive coater head operating at 170°F) to apply the composition to the diaper's barrier hem of 1.4 inches wide (the width of the diaper, so as to cover the distance of the barrier hem Side edge) and 11.75 inches long (diaper longitudinal direction) area, this patch is centered on the contraction area of the barrier hem, so that one or both ends of each spacer elastic element are covered by the skin care composition. Addition value = 0.0116 g/square inch (18.0 g/square meter).

<u>Example 5</u>

<u>A. Preparation of skin care composition</u>

An anhydrous skin care composition (Skin Care Composition C) was prepared by mixing the following molten (ie liquid) ingredients: mineral oil (Carnation White Mineral Oil, USP, manufactured by the Weike Group); cetyl alcohol (Prote and Gan The brand name TA-1618 Hybrid Straight Chain C manufactured by Bo₁₆-C₁₈Grade 1 alcohol); and Cetereath 10 (C with an average degree of ethoxylation of 10₁₆-C₁₈Straight-chain alcohol ethoxylate, manufactured by ICI Corporation, USA). The weight percentages of these ingredients are shown in Table III below:

<img file="TW508232B_D0010.tif" />

<u>B. Preparation of treated diapers via hot melt coating</u>

Place skin care composition C in a heating bath operating at a temperature of 170°F. Then use a contact coater (ie a Meltex EP45 hot melt adhesive coater head operating at 170°F) to apply the composition to the diaper's barrier hem of 1.4 inches wide (the width of the diaper, so as to cover the distance of the barrier hem Side edge) and 11.75 inches long (diaper longitudinal direction) area, this patch is centered on the contraction area of the barrier hem, so that one or both ends of each spacer elastic element are covered by the skin care composition. Addition value = 0.0116 g/square inch (18.0 g/square meter).

<u>Example 6</u>

<u>A. Preparation of skin care composition</u>

An anhydrous skin care composition (Skin Care Composition D) is prepared by mixing the following molten (ie liquid) ingredients: Vaseline (purchased from the Weike Group's Perfecta); cetyl alcohol (manufactured by Prot and Gambo) The product name is TA-1618 Hybrid Straight Chain C₁₆-C₁₈Primary alcohol); Cetyl ether 10 (C with an average degree of ethoxylation of 10₁₆-C₁₈Linear alcohol ethoxylate, manufactured by ICI Corporation, USA); and Veragel 1:1 Lipoid and Kaydol (aloe extract in mineral oil, manufactured by Dr. Madis Laboratories, Inc.). The weight percentages of these ingredients are shown in Table IV below:

<img file="TW508232B_D0011.tif" />

<u>B. Preparation of treated diapers via hot melt coating</u>

Place skin care composition D in a heating bath operating at a temperature of 170°F. Then use a contact coater (ie a Meltex EP45 hot melt adhesive coater head operating at 170°F) to apply the composition to the diaper's barrier hem of 1.4 inches wide (the width of the diaper, so as to cover the distance of the barrier hem Side edge) and 11.75 inches long (diaper longitudinal direction) area, this patch is centered on the contraction area of the barrier hem, so that one or both ends of each spacer elastic element are covered by the skin care composition. Addition value = 0.0116 g/square inch (18.0, g/square meter).

<u>Example 7</u>

Composition A (made according to Example 1) was placed in a heating bath operating at a temperature of 170°F. Then use a contact coater (for example, using a Meltex EP45 hot melt adhesive coater head with 5 slots and operating at a temperature of 170°F) to apply the composition to the surface of the object in a striped pattern, where the strips extend in the longitudinal direction of the object . Specifically, 5 stripes were coated, each stripe was 0.25 inches wide (that is, in the horizontal direction of the object) and 11.75 inches long, and the added amount = 7.7 mg/square inch (12 g/m², 1.19 mg/cm²). The distance between the stripes is 0.31 inches.

Then, the skin care composition A was applied to the body surface of the barrier folds of the object with 1.4-inch wide (laterally, so as to cover the distal edges of the barrier folds) on each barrier fold, and extended on the barrier folds The entire length of the side. Addition value = 0.0116 g/square inch (18 g/square meter). The coating was completed in the same manner as described in Example 1.

<u>Example 8</u>

Composition D (made according to Example 6) was placed in a heating bath operating at a temperature of 170°F. Then, a contact coater (for example, a Meltex EP45 hot melt adhesive coater head with a single tank and probed at a temperature of 170°F) is used to coat the composition with a substantially uniform coating on the surface of the object. Specifically, one stripe is coated, which is 2.5 inches wide (that is, in the horizontal direction of the object) and 11.75 inches long, and the added amount = 7.7 mg/square inch (12 g/m², 1.19 mg/cm²). The stripes are coated to be centered on the longitudinal centerline of the object.

Next, the skin care composition A was applied to the body surface of the barrier hem of the object with 1.4-inch wide (laterally, so as to cover the distal edge of the barrier hem) on each barrier hem, and extended to the barrier hem The entire length. Addition value = 0.0116 g/square inch (18 g/square meter). The coating was completed in the same manner as described in Example 1.

<p>20 Diaper 22 Front waist area</p><p>twenty four Back waist area 50,52 tissue layers</p><p>26 Bifurcation area 54 with tabs</p><p>30 Longitudinal edge 55 landing element</p><p>32 End edge 56 padded ruffle</p><p>34 Horizontal centerline 57 Body surface</p><p>36 Longitudinal centerline 58 Lateral flaps</p><p>38 Liquid permeable surface 59 Surface of clothing</p><p>40 Body surface 60 flap elastic elements</p><p>42 Liquid impermeable back layer 62 Barrier frills</p><p>44 Absorbent core material 63 Barrier frill element</p><p>46 Side edge 64 Near side edge</p><p>47 Waist edge 66 Distal edge</p><p>48 Absorbent layer 68 Surface of clothing</p><p>70 Body surface (outside surface) of the barrier frills</p><p>72 Skin Care Composition 762 Barrier Frill</p><p>72' The second skin care composition 763 barrier frill element</p><p>72" The third skin care composition 802 The first frill element</p><p>74 End 804 Second frill element</p><p>76 Spacer elastic element 806 body surface</p><p>78 Closing element 808 clothing surface</p><p>84 Body surface 820 diapers</p><p>86 Clothing surface 856 leg frills</p><p>88 Flap attachment element 858 lateral flaps</p><p>90 Elastic attachment element 860 Elastic element</p><p>92 Proximal fixation element 872 skin care composition</p><p>94 Elastic attachment element 902 front side strip</p><p>96 Distal attachment element 904 Rear side strip</p><p>702 Flaps section 906 First side strip</p><p>704 Channel section 908 The second side strip</p><p>720 Diapers 910 leg edges</p><p>756 Padded ruffle 912 elastic waistband</p><p>758 Side flaps 914 waist edge</p><p>760 Flap elastic element 920 diapers</p><p>956 Liner ruffles 1072 skin care composition</p><p>972 The first skin care composition 1102 panties</p><p>972' The second skin care composition 1104 flap</p><p>972" The third skin care composition 1106 The first softness axis</p><p>1002 Single waist cap/belt 1108 Second softness axis</p><p>1004 Outward part 1110 Distal edge of flap</p><p>1006 Inward part 1120 sanitary napkin</p><p>1020 Diaper 1130 Longitudinal edge</p><p>1056 Elastic waistband 1162 barrier frills</p><p>1058 Waist flap 1164 Near side edge</p><p>1062 Waist cap (barrier frill) 1166 Distal edge</p><p>1064 Near side edge 1172 skin care composition</p><p>1066 Distal edge 1172' second skin care composition</p><p>1070 Body surface 1172" The third skin care composition</p>

Fig. 1 is a plan view of a specific example of the disposable diaper of the present invention partially cut to reveal the underlying structure.

Figure 2 is a partial cross-sectional view taken along the line 2-2 of Figure 1;

Figure 3 is a partial cross-sectional view taken along the line 3-3 of Figure 1;

Figure 4 is a perspective view of an absorbent article in the form of a disposable diaper according to the present invention.

Figure 5 is a schematic diagram illustrating a preferred method of applying the composition of the present invention to the hem of the barrier rib of a diaper.

Figure 6 is a schematic diagram illustrating another method of applying the composition of the present invention to the hem of the barrier rib of a diaper.

Fig. 7 is a partial cross-sectional view of another embodiment of the present invention.

Fig. 8 is a cross-sectional view of still another specific example of the present invention.

Fig. 9 is a plan view of yet another specific example of the present invention.

Fig. 10 is a partial cross-sectional view of yet another embodiment of the present invention.

Fig. 11 is a partial coronal view showing the sanitary napkin and underwear of the present invention on the user.