Absorbent article containing extensible zones
Abstract
This record has no abstract on file.
Term
Term ended
Expired 20 November 2016, 9.8 years ago.
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6 claims: 6 independent, 0 dependent
- 1前側部分と、後側部分と、前記前側部分を前記後側部分に接続する股部分とからなり、前記前側部分と前記後側部分と前記股部分と によって 全体の面積 が定められる ようになった吸収性物品において、(a)非伸張性材料により形成された外側カバー層と、(b)前記前側部分と前記後側部分と前記股部分とを拡げた状態における長手方向軸線に平行な長手方向と該長手方向に直角な横方向の一方 又は両方に沿った 方向に伸張可能な材料により形成された体側ライナー層と、を含み、前記外側カバー層と前記体側ライナー層と が結合されて 前記前側部分と前記後側部分と前記股部分とを含むベース構造 を 構成 し ており、(c)前記外側カバー層と前記体側ライナー層との間に 配置された 弾性層エレメント によって弾性層が形成されており 、前記体側ライナー層と前記弾性層とが拡げられ、 かつ、該体側ライナー層と弾性層とに 応力が作用し てい ない非応力状態で、 前記弾性層が 該体側ライナー層に接合され 、かつ、前記外側カバー層は、前記体側ライナー層の伸張可能な前記方向にギャザー寄せすることによりギャザーが形成された状態で、拡げられた非応力状態の前記体側ライナー層に結合され ており、(d)前記弾性層は 前記股部に配置され、該弾性層によって該弾性層の外側 周縁 より内側に 面状に拡がる弾性伸張ゾーンが区画され、該弾性伸張ゾーン内で前記体側ライナー層 は、前記長手方向と該長手方向に直角な横方向の一方又は両方に沿った 前記方向に伸張可能であ り、 (e)前記外側カバー層と前記体側ライナー層との間に吸収性コアが配置された ことを特徴とする吸収性物品。
- 2請求項 1 に記載した吸収性物品であって、前記外側カバー層は、前記伸張ゾーンにおいて前記弾性層に接合されていないことを特徴とする吸収性物品。
- 3請求項1 又は 請求項 2 に記載した吸収性物品であって、 前記吸収コアは非伸張性であり、 前記体側ライナー層と前記弾性層との間に取り付けられ、前記吸収性コアが取り付けられた領域では前記ベース構造が非伸張性となることを特徴とする吸収性物品。
- 4請求項1から請求項 3 までのいずれか1項に記載した吸収性物品であって、前記体側ライナー層は、前記 長手方向と該長手方向に直角な横方向の一方又は両方に沿った前記 方向に5%ないし75%伸張可能であり、伸張により 伸張 方向に直角の方向に幅が狭くなるものであることを特徴とする吸収性物品。
- 5請求項1から請求項 4 までのいずれか1項に記載した吸収性物品であって、前記弾性伸張ゾーンが、前記股部分の周縁部に 達するように 所定の幅にわたって形成されていることを特徴とする吸収性物品。
- 6請求項1から請求項 5 までのいずれか1項に記載した吸収性物品であって、前記弾性伸張ゾーンの外側に、前記体側ライナー層の伸張可能性により伸張可能な別の伸張ゾーンが形成され、該別の伸張ゾーンの収縮性は前記弾性伸張ゾーンの収縮性よりも弱いことを特徴とする吸収性物品。
Independent claims6
2 paragraphs, as filed
Background Technical Fields of the Invention The present invention provides excrement.<u style="single">To accommodate</u>Regarding absorbent articles. Such absorbent articles generally utilize leg elastics and waist elastics to prevent leakage of human excrement. Description of Related Fields Absorbent articles such as infant diapers, toilet training pants, and adult incontinence products are well known. Such articles have become widely accepted due to their ability to receive and absorb human excrement. In the prior art, various means and methods have been devised to better fit absorbent articles to different users. For example, U.S. Pat. No. 4,756,709 granted to Stevens has an extendable outer cover.<u style="single">、</u>shape<u style="single">Compatibility self</u>Disclose adjustable disposable garments. The outer cover is stretchable, but the body side liner is not. The outer cover is pre-stretched before being attached to the body side liner<u style="single">Be in a state of</u>.. U.S. Pat. No. 4,704,114 granted to Wilson et al. Is similar to U.S. Pat. No. 4,756,709 described above, except that the garment elastically stretches in two directions.<u style="single">Disclose technology</u>.. U.S. Pat. No. 4,857,067 granted to Wood et al. Stretches parts of diapers<u style="single">To be able to</u>it can<u style="single">like</u>Shirring<u style="single">Sa</u>With the ears<u style="single">Addition</u>heat<u style="single">Elasticization</u>Disclose disposable diapers with possible materials. Wood Other backsheets and topsheets are both made of non-stretchable material. Description of the Invention The present invention relates to an absorbent article designed to absorb human excrement. The absorbent article allows the absorbent article to fit better on the user's body.<u style="single">To the crotch</u>Includes stretchable zones. The absorbent article can be fitted to a wider range of users due to this stretchable zone. In one aspect of the invention, the invention relates to an absorbent article having an anterior portion, a posterior portion, a crotch portion connecting the anterior and posterior portions, and a first outer periphery.<u style="single">part</u>And crotch part<u style="single">By</u>Total area of absorbent article<u style="single">But</u>Formation<u style="single">Be done</u>, The longitudinal axis extends through the anterior-posterior portion and the crotch portion, and the longitudinal portion<u style="single">direction</u>In the first direction within the absorbent article, which is approximately aligned with the axis,<u style="single">Lateral to the first direction</u>Forming a second lateral direction, the absorbent article is in at least one of the first and second lateral directions.<u style="single">Gathered</u>1st material<u style="single">Consists of</u>The outer cover layer and the outer cover layer<u style="single">Combine to</u>Being base<u style="single">Construction</u>Form,<u style="single">the above</u>An elastic layer is formed between the body-side liner layer formed of the second material that can be stretched in at least one of the first direction and the lateral direction, and the outer cover layer and the body-side liner layer, and the outer layer and the body-side liner layer are formed. Second outer circumference attached to at least one<u style="single">edge</u>With at least one elastic layer element,<u style="single">To.</u>Body side liner layer<u style="single">When</u>Elastic layer<u style="single">When</u>Is virtually completely<u style="single">Spread out</u>In a non-contracted state<u style="single">Combined with each other</u>, Said outer cover<u style="single">The layer is</u>, Said<u style="single">1st and 2nd directions</u>It is bonded to the body-side liner layer in a gathered state along at least one of them. Elastic layer element<u style="single">The elastic layer formed by is placed in the crotch and inside the outer edge of the elastic layer.</u>Extendable zone<u style="single">Is formed</u>The stretchability and contraction of the absorbent article in the stretchable zone allows a wide range of stretchability of the absorbent article in the stretchable zone. The absorbent article may further include a mounting element located within the posterior portion, which mounting element is an absorbent article.<u style="single">To</u>Fixed to the user<u style="single">Can be used to</u>Absorbent articles are with the body side liner layer<u style="single">Outer cover layer</u>Contains a non-stretchable absorbent core between<u style="single">Body side liner layer</u>Is fixed to the absorbent core. In another aspect of the invention, the stretchable material of the body-side liner layer stretches from about 25% to about 150% in either the first or second lateral direction, correspondingly in the first direction. And in the second horizontal direction<u style="single">The other direction of</u>It has a span bond layer that narrows down. The material of the body side liner layer is<u style="single">A group consisting of spunbond materials, spunbond laminates such as spunbond melt blow spunbond materials, and bonded carded webs.</u>You can choose from. The stretchable material of the body side layer narrows laterally by stretching in the first direction, correspondingly necking in the second lateral direction, and the stretchable zone becomes necked laterally. Body side liner layer<u style="single">Is</u>Creped and stretchable<u style="single">Give sex</u>, Absorbent articles in the 1st and 2nd lateral directions<u style="single">One or</u>Both can be stretched in the stretchable zone. The absorbent article can only be stretched in the first direction or only in the second lateral direction with respect to the stretchable zone.<u style="single">Can be</u>.. In another aspect of the invention, the elastic layer is composed of elastic material strands or films. Elastic layer is stretchable zone<u style="single">To</u>Only placed<u style="single">Be done</u>。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the present invention.<u style="single">Reference for explaining</u>The top view of the example is shown. Figure 2 shows line 2-2 in Figure 1.<u style="single">along</u>It is sectional drawing of the cut absorbent article. Figure 3 shows a second absorbent article containing another additional elastic section.<u style="single">reference</u>It is a top view of an example. FIG. 4 is a cross-sectional view of the absorbent article cut in 4-4 of FIG. Figure 5 shows the third<u style="single">reference</u>It is a top view of an example. Figure 6 shows the fourth<u style="single">reference</u>It is a top view of an example. Figure 7 shows the fifth<u style="single">reference</u>It is a top view of an example. FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. 6 when the absorbent article is stretched in two directions.<u style="single">Status</u>Represents. FIG. 9 shows the present invention.<u style="single">Applicable to absorbent articles</u>Example<u style="single">Show</u>It is a top view. The present invention is not limited to the following description and application relating to the details and structure of the composition of the components illustrated in the figure. The present invention can be implemented or implemented in a variety of ways. The terms and meanings used herein are for the purpose of detailed explanation and illustration.<u style="single">In a limited sense</u>You shouldn't think about it. The same sign is used to indicate the same component. Detailed Description of Preferred Examples The present invention relates to an absorbent article designed to absorb human excrement. Although preferred embodiments of the present invention have been described for absorbent articles such as infant diapers, the invention is similarly applicable to adult, incontinence briefs, infant toilet training pants and the like. .. The present invention refers to the figure.<u style="single">By</u>Best understood. Figure 1 shows<u style="single">It shows a reference example</u>, Front part 10, rear part 12<u style="single">、</u>and<u style="single">The</u>An absorbent article 8 with a crotch portion 14 connecting the front side portion 10 and the rear side portion 12 is illustrated. The absorbent article 8 has a longitudinal axis 16 extending through the anterior, posterior and crotch portions 10, 12 and 14. The longitudinal axis 16 forms a first direction 18 aligned with it and a lateral direction 20 substantially perpendicular to the first direction 18. Direction 18 and 20<u style="single">、</u>Figure 1<u style="single">To</u>It is indicated by an arrow. As shown in FIG. 2, which is a cross section cut along line 2-2 of FIG. 1, the absorbent article 8 is formed by the outer cover layer 22 and the body side liner layer 24.<u style="single">These are</u>Combined to form the base structure 26. The elastic layer 28 is attached between the outer cover layer 22 and the body side liner layer 24 to form an stretchable zone. When the outer cover layer 22 and the body side liner layer 24 are stretched, the elastic layer 28 becomes<u style="single">From a relaxed state</u>With outer cover layer 22 and body side liner layer 24<u style="single">Stretch</u>.. By stretching the elastic layer 28, a contraction force is created in the elastic layer 28.<u style="single">This contraction</u>Force stretch zone of elastic layer and 28 and absorbent articles<u style="single">To almost the size before stretching</u>.. In FIGS. 1 and all, the stretchable zone almost illustrated by 30 is represented by a circle representing zone 30 and is stretchable in at least one direction. Stretch zone 30 is an absorbent article<u style="single">Inside</u>Already exists in<u style="single">Depending on the element</u>The zone is formed<u style="single">in case of</u>Absorbent article 8 and<u style="single">Become one</u>.. The mounting element 32 consists of mechanical fasteners such as hooks attached to the outer cover layer 22 on the rear 12 of the absorbent article 8 and hooks of the loop fastener system as shown in FIG. A corresponding loop material or surface 34 is attached to the outer cover layer 22 on the anterior portion 10 so as to be removablely engaged with the hook material of the attachment element 32. Another known binding means<u style="single">To</u>, Absorbent article 8<u style="single">Fixed to the wearer</u>Can be used to For example<u style="single">Adhesive</u>System, adhesive fastener system, etc.<u style="single">Using</u>Combine absorbent article 8<u style="single">So</u>You may. Is the absorbent core 36 supported between the outer cover layer 22 and the body side liner layer 24?<u style="single">, Or</u>It is attached.<u style="single">In this example</u>The outer cover layer 22 covers almost the entire area of the absorbent article 8.<u style="single">Placed across</u>Consists of a first material that can be stretched in the first direction 18.<u style="single">When stretched</u>The length becomes larger,<u style="single">side</u>It narrows in direction 20. Such material<u style="single">As</u>Is a knitted fabric, a loosely woven fabric,<u style="single">Bonded</u>Carded web, spunbond web and melt blow web<u style="single">There is</u>.. Melt blow webs generally include melt blown fine fibers. The material may have multiple layers, such as a plurality of spunbond layers or melt blow layers. The material may be made from a polymer such as polyolefin. Exemplary polyolefins include polypropylene, polyethylene, ethylene copolyomers and propylene copolymers. See U.S. Pat. No. 5,226,992 granted to Morman et al., Which induces various materials capable of forming the outer cover layer 22.<u style="single">Want to be</u>.. The present invention cites this prior art and makes the description of this patent specification a part of the description of this specification. The preferred material for the outer cover layer 22 can consist of an stretchable film laminated on a necked non-woven spunbond binding material. This non-woven material must be stretchable by 5% to 7%, preferably 10% to 50% in its original length, eg in the first direction 18, and correspondingly 5% of its original width. From 75% neck<u style="single">do it</u>, Laterally 20<u style="single">The width is</u>It gets narrower. Body side liner layer 24<u style="single">Consists of a second material</u>, In almost the entire area of absorbent article 8<u style="single">Over</u>I like it to be extended<u style="single">Ku</u>, The material is disclosed with respect to the outer governor layer 22 described in US Pat. No. 5,226,929.<u style="single">things and</u>It is the same material. Preferred material<u style="single">As</u>Narrows laterally 20 by stretching in the first direction by 5% to 75% of the original length due to the force to neck the material<u style="single">Ru</u>Neck stretch spunbond layer<u style="single">But</u>(See, in particular, U.S. Pat. No. 4,226,992). The elastic layer 28 is composed of a thermoplastic film or sheet material formed from a block copolymer having a polymer end block partially containing styrene and an elastic polymer mid block such as a conjugated diene or lower alkene polymer. The elastic layer is, for example, KRATON<u style="single">(Registered trademark)</u>It may be formed as G from a styrene / ethylene / butylene / styrene block copolymer available from Shell Chemical. The elastic layer 28 consists of a substantially liquid-impermeable film, strands of elastic material, elastic foam, or elastic adhesive coating.<u style="single">can do</u>.. Extendable zone 30<u style="single">It forms an area of absorbent article</u>、<u style="single">In this area</u>The outer cover layer 22 is on the body side liner layer 24, and the elastic layer 28<u style="single">With</u>Attached with composite<u style="single">Many</u>Form a layered structure,<u style="single">The</u>composite<u style="single">Many</u>Each layer of the layer structure<u style="single">、</u>Optionally stretchable, the absorbent article 8 can stretch within stretchable zone 30 in at least one direction<u style="single">To do</u>.. Alternatively, the outer cover 22, the body side liner layer 24, and the elastic layer 28 are arranged in the structure to form an stretchable zone 30.<u style="single">Even though</u>Good. For example, the outer cover layer 22 is arranged between the elastic layer 28 and the body side liner layer 24 to form an extension zone 30.<u style="single">May</u>.. In addition, body side liner layer 24<u style="single">When</u>, Outer cover layer 22, and elastic layer 28<u style="single">Is</u>Fully stretched, unstressed<u style="single">To be in an expanded state</u>it can. Stress on each layer when stretch zone 30 is formed<u style="single">But</u>Does not cost<u style="single">To do</u>Therefore, this relationship is conceivable. The absorbent core 36 is combined with a highly absorbent material, commonly known as a superabsorbent material, to properly construct a matrix of hydrophilic fibers such as a web of cellulose fluff. In a particular example, the absorbent core 36 is composed of a mixture of superabsorbable hydrogel molded particles and wood pulp fluff. Wood pulp fluff<u style="single">Instead of</u>, Synthetic, polymer<u style="single">system</u>Using Melt Blow Fiber or a combination of Melt Blow and Natural Fiber<u style="single">Also</u>Good. Super-absorbent material is almost homogeneously with hydrophilic fibers<u style="single">mixture</u>Absorbent core 36<u style="single">Can be configured</u>.. Or<u style="single">、</u>The absorbent core 36 is a laminate of a fiber web and a superabsorbent material.<u style="single">body</u>Or a given super-absorbent material<u style="single">local</u>Consists of suitable means to maintain in the area<u style="single">Even if</u>Good. Absorbent core 36<u style="single">Many</u>Shape<u style="single">Can be either</u>.. For example, the absorbent core 36 is rectangular, I-shaped, or T-shaped.<u style="single">Can be</u>.. Absorbent core 36<u style="single">Is</u>It is generally preferred that the crotch portion 14 is narrower than the posterior portion 12 or the anterior portion 10. The highly absorbent material within the absorbent core 26 is natural, synthetic and modified natural<u style="single">of</u>You can choose from polymers and materials. Highly absorbent materials are silica gel, or organic compounds such as crosslinked polymers.<u style="single">Even so</u>Good. Cross-linking is usually water-soluble<u style="single">of</u>The material is effectively, substantially water-insoluble but swelling<u style="single">sex</u>The swelling material becomes substantially immobile after absorbing a substantially water-based liquid, although it means a means of making it absorbable. Such means include, for example, physical confounding, crystal regions, covalent bonds, ionic complexes and associations, hydrophilic associations such as hydrogen bonds, hydrophobic associations or van der Waals forces. In FIG. 2, the absorbent core 36 is attached between the body side liner layer 24 and the elastic layer 28.<u style="single">In the state</u>It is illustrated. In this structure, if the elastic layer 28 is sufficiently liquid permeable and such a liquid can be completely passed through the absorbent core 36, the absorbent core 36 will be the elastic layer 28 and the outer cover layer 22. Can be installed between. Of course, in the predetermined region of the absorbent article 8, the elastic layer 28 may not be present between the outer cover layer 22 and the body side liner layer 24. In the example of FIG. 1, the absorbent core 36 is fixed to the base structure 26 and forms a non-extended region formed by a region in which the absorbent core 36 is effectively attached to the base structure 26. This non-stretched area 37<u style="single">Is</u>, By the horizontal shading line of the absorbent core 36<u style="single">Is shown. In the other non-stretched areas, the absorptive core 36 is similarly indicated by horizontal shading lines.</u>, In the top view<u style="single">、</u>Another part of this structure<u style="single">Is</u>Round<u style="single">Or</u>Illustrated by the absence of horizontal shading lines. Absorbent core 36 in the drawing<u style="single">But</u>Not fixed to the base structure 26, the elastic layer 28 is fixed between the body side liner layer 24 and the outer cover layer 22<u style="single">In the area</u>, Marked with a circle<u style="single">Area</u>Represents stretchable zone 30. The front and rear waist elastic portions 38 and 40 are illustrated in FIG. These elastic parts can adapt the absorbent article 8 to various users. The leg elastic portion 40 was attached to the outer cover layer 22 or the body side liner 24.<u style="single">another</u>Formed from material<u style="single">can do</u>.. Material suitable for forming leg elastic part 40 or waist elastic part 38<u style="single">As</u>Is a strand, ribbon or 1<u style="single">Or</u>2 or more polymers or<u style="single">There is a layer of elastic material, this layer of elastic material</u>Joined absorbent material 8 in stretched state<u style="single">Be done</u>.. The waist elastic portion 38 or the absorbent elastic portion 40 shown is optional. As illustrated in FIG. 9, if the stretchable zone 30 covers a sufficient area of the absorbent article 8 and is sufficiently stretchable in the first direction.<u style="single">, Leg elastic part 40</u>Not required. If the stretchable zone 30 covers a considerable area of the absorbent article 8 and is stretchable laterally 20, the rear waist elastic section 38<u style="single">Is</u>, As illustrated in Figures 3 and 5<u style="single">Need</u>Not done. Figure 3 is from the example in Figure 1.<u style="single">Guide</u>The second example is shown. this<u style="single">Example</u>In<u style="single">Is</u>, The additional elastic part 42 is between the mounting element 32 and the absorbent core 36.<u style="single">Leave</u>Although it is provided in the rear part 12,<u style="single">The additional elastic portion 42</u>Preferably not attached to the absorbent core 36<u style="single">Is preferable</u>.. These additional elastics will enhance the ability of the posterior portion 12 to stretch and contract laterally 20. This design forms a waist elastic portion 38 within the posterior portion 12 of the less important absorbent article 8. Further, as illustrated in FIG. 3, in the region of the loop material, i.e. the surface 34, the region 46 in the anterior portion 10 of the absorbent article 8 with neither circles nor lateral shading lines is substantially non-stretchable. completely<u style="single">In the expanded state</u>Non-stretched<u style="single">Sexual</u>Material 44 is line 4-4 in Figure 3<u style="single">along</u>The non-stretchability of the non-stretchable region 46 as shown in the cut FIG. 4 can be controlled. The non-stretchable layer 33 is preferably attached to the outer cover layer 22 and the elastic layer 28 as shown in FIG. 4 over the entire facing surface. The non-stretchable layer 44 comprises a plurality of elastic elements attached to various parts of the absorbent article 8.<u style="single">Can be</u>.. various<u style="single">other</u>Between the layers<u style="single">To</u>Placement<u style="single">To do</u>Regarding<u style="single">Teha</u>, Location of non-stretch layer 44<u style="single">Is</u>important<u style="single">so</u>There is no. Non-stretch layer 44<u style="single">Is</u>It can be placed between the body-side liner layer 24 and the elastic layer 28 and can only be attached to the outer cover layer 22 or the body-side liner layer 24. The non-stretchable layer 44 is composed of a polyethylene film or a polyethylene film laminated on the surface of a non-woven web, such as a spunbonded web such as a polyolefin fiber.<u style="single">can do</u>.. In addition, the non-stretchable layer 44 is woven or non-woven fiber web or attached.<u style="single">In the state</u>Any non-stretchable material may be used that is sufficient to prevent substantial elongation of the base structure 26. In general, the extensibility of the absorbent article 8 in the non-stretched region 46 is limited to 20% or less of the non-stretched state in any direction. On non-stretch layer 46<u style="single">Provide an elastic layer 28</u>No need. Preferably, the elastic layer 28<u style="single">Even if there is no</u>The non-stretch layer 44 is used, or a plurality of non-stretch layer elements are used. This is because the base structure 26 itself has a predetermined extensibility, as will be described later. FIG. 5 shows the third preferred<u style="single">reference</u>An example is illustrated, where nearly the entire posterior portion 12 of the absorbent article 8 and any portion of the crotch portion 14 comprises a first extendable zone 30A. In the corresponding portion of the rear portion 12, the absorbent core 36 is not fixed to the base structure 26. The absorbent core 36 is either held by a flap (not shown) or received at the posterior portion 12 without immobilization between the body-side liner layer 24 and the elastic layer 28. As illustrated by the shaded lines, the absorbent core 36 is fixed and attached to the base structure 26 in the mirror image portion of the crotch portion 14, the anterior portion 10 and the posterior portion 12. In Figure 5<u style="single">Put</u>The anterior portion 10 of the absorbent article 8 contains a non-stretchable region 46<u style="single">,That</u>Non-stretchability is controlled by the non-stretchable material 44, as described above with respect to the anterior portion 10 of the absorbent article of FIG. In the example of FIG. 5, nothing is shown, but the absorbent article 8 extends laterally 20 of the posterior portion 12.<u style="single">Possible</u>Extensibility by zone 30<u style="single">Have</u>Therefore, the posterior waist elastic portion 38 is not required. The second stretch zone 30B is located in the anterior portion 10 of the absorbent article 8. The extension zone 30B is approximately rectangular and extends from the central region to the anterior portion 10 across the anterior edge 48 of the anterior portion 10 and overlaps a predetermined portion of the absorbent core 36. The absorbent core is not the region of the second extendable zone 30B, but is fixed to the base structure 26 on each side of the extension zone 30 of the anterior portion 10.<u style="single">To</u>It is attached. The non-stretchable region 46 is within the anterior portion 10 of the absorbent article 8.<u style="single">In</u>Stretch zone 30B<u style="single">of</u>On each side<u style="single">Of another material</u>It preferably contains a non-stretch layer element. Due to the ability of the stretch zone 30B to stretch laterally, the example of FIG. 5 does not require the anterior-posterior waist elastics 38, 40, as shown. Stretch zones 30A, 30B are formed by elastic elements with outer perimeters formed by elastic layer elements 28A, 28B for each stretchable zone, respectively. Figure 6<u style="single">reference</u>In the example, of the absorbent article 8 in each anterior portion 10 and posterior portion 12.<u style="single">Both</u>Includes extendable zones 30A, 30B, 30C, 30D on the sides. Absorbent article 8<u style="single">、</u>Length of absorbent article 8 from anterior edge 48 to posterior edge 50 of posterior portion 12<u style="single">direction</u>In the central non-stretched area 46 extending to<u style="single">Is</u>Stretch<u style="single">Not possible</u>The non-stretched region 46 extends along the longitudinal axis 16 and has a width "W1" at the crotch portion 14 of the absorbent article 8 that is narrower than the minimum width of the absorbent article 8. This example preferably includes an elastic layer element formed by the elastic layer 28 for each of the stretch zones 30A, 30B, 30C, 30D. This example includes a non-stretchable layer 44 or corresponding non-stretchable layer element that limits the extensibility of the non-stretchable region 46 of the absorbent article. The absorbent core 36 is supported by the base structure 26 on the outer surface of the absorbent core 36, but is not attached to the base structure 26 of the anterior portion 10 of the absorbent article 8. Figure 7<u style="single">reference</u>In the example, the stretch zone 30 and the non-stretch zone 46 are shown in FIG.<u style="single">reference</u>It is almost the opposite of each of zone 30 and region 46 in the example. The central region of the absorbent article 8 forms a central extension zone 30 extending from the anterior edge 48 to the posterior edge 50 along the length of the absorbent article 8 so that the extension zone 30 is on the longitudinal axis 16. It extends along and has a width "W2" at the crotch portion 14 that is narrower than the minimum width of the absorbent article 8 but covers the bulk. The absorbent core 36 is received in the stretch zone 30 without being anchored to the outer cover layer 22 or the body side liner layer 26. Therefore, the absorbent core 36 is not attached to the outer cover layer 22 and the body side liner layer 26 within the crotch portion 14 and the posterior portion 12 of the absorbent article. The absorbent core 36 is secured to at least one of the outer cover layer 22 and the body side liner layer 26 at the outer element of the anterior portion 10. Absorbent core 36 is held by flaps (not shown)<u style="single">Or,</u>Attached<u style="single">Isn't it</u>, As described above, the rear side portion 12 and the crotch portion 14 are supported without being fixed between the body side liner layer 24 and the elastic layer 28. As mentioned earlier, the stretch zone 30 is generally of absorbent article.<u style="single">one</u>Area<u style="single">Configure</u>、<u style="single">In this area</u>At least one of the outer cover layer 22 and the body side liner layer 24 is attached to the elastic layer 28 so that the absorbent article 8 is elastically stretchable in the stretchable zone 30. Body side liner layer 24<u style="single">When</u>Outer cover layer 22<u style="single">When</u>Elastic layer 28<u style="single">When</u>Is<u style="single">at the same time</u>Virtually fully stretched<u style="single">Non</u>Stress state<u style="single">Can be</u>it can. This relationship is that when the layers are fixed to each other<u style="single">Ki</u>, Generally no significant stress is applied to layers 22, 24, 28<u style="single">To do</u>It is thought that this is the reason. Importantly in the present invention, at least one layer of the base structure can be stretched in at least one direction beyond the fully stretched unstressed state by applying an stretching force.<u style="single">Is to do</u>。<u style="single">Some</u>In the example of<u style="single">Is</u>, Layers in the second vertical or horizontal direction<u style="single">Also</u>Can be stretched. Various methods can be used to provide extensibility in the second lateral 20. FIG. 8 illustrates a cross-sectional view taken along the line 8-8 of FIG. FIG. 8 does not itself represent the example of FIG. FIG. 8 shows the present invention.<u style="single">A reference for</u>As an example, the extension zone 30 can be extended in both the first direction 18 and the second lateral direction 20. Two-way extension in Figure 8<u style="single">sex</u>, Especially the first<u style="single">of</u>Longitudinal 18 stretch<u style="single">sex</u>However, either the body side liner outer cover layer 24 or the outer cover layer 22<u style="single">on the other hand</u>Or on both sides<u style="single">, Creping or</u>Another shortening method<u style="single">Line</u>Therefore, it can be realized by making each layer extendable in the first direction 18. In such a case<u style="single">Is</u>, In the stretch zone 30, the absorbent article 8<u style="single">、</u>It can be stretched in both the first direction 18 (as a result of creping) and the lateral direction 20 (as a result of necking). It is preferred that fine creping be used to produce a material with a base structure 26 that is sufficiently stretchable in the first direction 18. The multidirectional stretch structure of FIG. 8 applies to all of the examples disclosed herein. Figure 9<u style="single">Shows a reference example applicable to the examples of the present invention.</u>In<u style="single">Is</u>, Crotch part 14<u style="single">To</u>Stretch zone 30<u style="single">Is formed and this extension zone 30</u>For the elasticity of the leg elastic part 40<u style="single">Can be omitted</u>.. The example of FIG. 9 shows the longitudinal length at the crotch portion 14.<u style="single">direction</u>The absorbent article 8 with the extensibility of is illustrated. Crotch part 14<u style="single">No.</u>It has an extension zone 30 that can be extended in the extension direction 18 of 1. Absorbent core 36<u style="single">Is</u>It is preferred that it be fixed and attached to the base structure 26 only on the anterior portion 10 of the absorbent article 8. The absorbent core 36 is received at the posterior portion 12 and the crotch portion 14 without being fixed between the outer cover layer 22 and the body side liner layer 24. In this embodiment, the crotch portion 14<u style="single">In</u>Due to the longitudinal extensibility of the extension zone 30, the leg elastic section 40 is not required. Increased longitudinal extensibility allows the absorbent article 8 to fit a wider range of users. In the example of FIG. 9, of course, the elastic part of the leg<u style="single">Material</u>Using<u style="single">Can be</u>.. Such leg elasticity<u style="single">Element</u>Provides additional resilience at the crotch portion 14 of the absorbent article 8 when additional resilience is required. Elastic part of the leg<u style="single">Material</u>If is used, this leg elastic part<u style="single">Material</u>Is<u style="single">、</u>Spacing outward from longitudinal axis 16<u style="single">Placed in</u>, Elastic stretch as stretch zone 30 stretches in first direction 18.<u style="single">Element</u>Will increase the overall length of the absorbent article 8.<u style="single">The present invention</u>Examples of<u style="single">Is</u>、<u style="single">It has almost the same structure as shown in Fig. 9, but</u>The outer cover layer 22 is substantially non-stretchable<u style="single">Sexual</u>Have materials<u style="single">Different in points</u>.. This non-stretch<u style="single">sex</u>The material is woven or non-woven fiber web or sufficient to substantially prevent stretching when applied.<u style="single">I see</u>It can be composed of materials such as non-extensible materials. However, in the assembled absorbent article 8, the elastic layer 28 and the body side liner layer 24 are substantially completely<u style="single">Spread out</u>And virtually unstressed<u style="single">On the outer cover layer 22 when</u>Gathers are formed. In this structure<u style="single">Is</u>, Elastic layer 28 and body side liner layer 24<u style="single">When stretched, the outer cover 22 also stretches corresponding to the gathers, but the outer cover stretches the elastic layer 22 and the body side liner 24</u>Area attached to either or both<u style="single">There is</u>, Completely on the outer cover layer 22<u style="single">Spread out</u>Beyond the dimensions<u style="single">Stretch out</u>There is no such thing. This example is identical to that illustrated in Figures 1, 3, 5-7 and 9<u style="single">Have a part that becomes</u>。<u style="single">The difference from these examples is</u>Outer cover 22 is non-extensible<u style="single">To be</u>, Its size<u style="single">From the body side liner</u>Be big,<u style="single">The outer cover layer is gathered,</u>The body side liner layer 24 and the elastic layer 28<u style="single">When stretching and contracting</u>Outer layer 22<u style="single">, The</u>Form the outer cover layer 22<u style="single">Textiles and others</u>Stress on the element<u style="single">Occurs</u>Without full extension or less<u style="single">Simultaneously expands and contracts within the range of</u>It means that you can do it. gather<u style="single">To cause</u>Forces or elements (eg creping, or elastic strands) are stretched on the outer cover layer 22<u style="single">Within the range in which the outer cover layer 22 is fully stretched when the gathers are spread.</u>, Although slight, causes stress. In certain embodiments of the invention, at least one stretchable zone 30 of the absorbent article 8 does not include an elastic layer 28.<u style="single">Including part</u>be able to. This zone 30 extends in at least one direction. However, the zone 30 without the elastic layer 28 does not have as much shrinkage as the zone with the elastic layer 28. The stretch layer 30 with the elastic layer 30 has the ability to stretch and then contract by about 70% to about 100% of the stretched amount. The stretch zone 30 without the elastic layer 28 has a contractile capacity of about 5% to about 70%, preferably 5% to about 50% of the stretch amount (ie, the distance the zone 30 is stretched). Stretching is the increased length caused by stretching in stretch zone 30<u style="single">、</u>That is,<u style="single">Growth</u>Is defined as. Therefore, with respect to the previously disclosed embodiment<u style="single">Teha</u>, Stretch zone<u style="single">Or stretchable</u>The part has no elastic layer 28<u style="single">of</u>Stretch zone 30<u style="single">Will be configured</u>.. Stretch zone 30 without elastic layer 28<u style="single">Area</u>Is stretchable, but contracts more than the area with elastic layer 28<u style="single">Low sex</u>.. That is, the elastic layer 28<u style="single">But</u>Generally, it gives most of the contraction force of the extension zone 30. Stretchable zone 30 is in tension<u style="single">To</u>Once done, it can be formed by a material that expands or stretches from about 10% to about 200% of its original dimensions. Therefore, the amount of stretch in the stretch zone 30 depends on the type of material used and the structure of the material.<u style="single">Significantly</u>Changes to. Although not specifically disclosed, the combination of elements shown in FIGS. 1 to 9<u style="single">Against</u>Various changes are possible. For example, in the illustrated embodiment, either the waist elastic portion 38 or the leg elastic portion 40 is used.<u style="single">Can include</u>.. Any illustrated example<u style="single">、</u>Elastic layer 28<u style="single">With</u>Stretch zone 30<u style="single">And / or</u>Elastic layer 28<u style="single">Without</u>Includes extension zone 30<u style="single">be able to</u>.. The disclosed invention improves the fit of the absorbent article 8 when worn by a user. For example, both the waist and thigh margins vary by 1 to 2 inches for the same infant, depending on the position of the infant, for example when sitting and standing. The change when standing up is 1 inch for the same toddler, either sitting or standing. The present invention improves the fit and user size of the absorbent article 8. Those skilled in the art will appreciate that certain modifications will be made to the illustrated embodiments with respect to the specification disclosed herein without departing from the spirit of the invention.<u style="single">Will</u>.. Although the invention has been described with respect to examples of the invention, the invention adapts to various modifications, modifications, and modifications, such modifications, modifications, and configurations that are within the scope of the claims. Understand<u style="single">Will</u>。
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP56079701A | Cites | Japan |
| JP02001267A | Cites | Japan |
| JP02004365A | Cites | Japan |
| JP03202056A | Cites | Japan |
| JP06508281A | Cites | Japan |
| WO95019753A1 | Cites | World Intellectual Property Organization (WIPO) |
| WO95012488A1 | Cites | World Intellectual Property Organization (WIPO) |
| WO96027352A1 | Cites | World Intellectual Property Organization (WIPO) |
27 members in 20 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 08575310 | United States of America | – | |
| 57531095 | United States of America | A | |
| 57531095 | United States of America | A | |
| 9618646 | United States of America | W | |
| 9618646 | United States of America | W | |
| 1995575310 | – | – | – |
| 1996018646 | – | – | – |
| US19950575310 | – | – | – |
| WO1996US18646 | – | – | – |
Members27
| Document | Office | Kind | |
|---|---|---|---|
| ZA969956B | South Africa | B | |
| CA2238444A1 | Canada | A1 | |
| WO9722318A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU1079397A | Australia | A | |
| TR1998001157T2 | Türkiye | T2 | |
| TR199801157T2 | Türkiye | T2 | |
| EP0869757A1 | European Patent Office (EPO) | A1 | |
| PL327411A1 | Poland | A1 | |
| US5846232A | United States of America | A | |
| SK85898A3 | Slovakia | A3 | |
| CZ193598A3 | Czechia | A3 | |
| IL124736A0 | Israel | A0 | |
| BR9612044A | Brazil | A | |
| CN1211173A | China | A | |
| CO4750627A1 | Colombia | A1 | |
| AR005250A1 | Argentina | A1 | |
| NZ323770A | New Zealand | A | |
| AU715677B2 | Australia | B2 | |
| JP2000502268A | Japan | A | |
| KR20000064484A | Republic of Korea | A | |
| RU2194480C2 | Russian Federation | C2 | |
| EP0869757B1 | European Patent Office (EPO) | B1 | |
| DE69633020D1 | Germany | D1 | |
| DE69633020T2 | Germany | T2 | |
| KR100453476B1 | Republic of Korea | B1 | |
| CN1253131C | China | C | |
| JP4173545B2This record | Japan | B2 |
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Numbers
- Publication
- 4173545
- Publication, DOCDB
- 4173545
- Publication, EPODOC
- JP4173545B
- Application
- 52280197
- Application, DOCDB
- 52280197
- Application, EPODOC
- JP19970522801
Titles2
- Japanese
- 伸張可能なゾーンを含む吸収性物品
- English
- Absorbent article containing stretchable zones
Classification
- CPC, 11
- A61F13/49009
- A61F13/15
- A61F2013/49022
- A61F2013/49025
- A61F2013/49053
- A61F2013/49055
- A61F2013/49057
- A61F2013/51322
- A61F2013/51327
- A61F2013/51429
- A61F2013/51452
- IPC, 3
- A61F13 15
- A61F13 49
- A61F5 44