Absorbent article

[Technical Fields to which the Invention Affected] The present invention relates to absorbent articles such as urine absorbing pads and sanitary napkins that are installed and used inside diapers for the care of the elderly and the sick, and in particular, other The present invention relates to an absorbent article capable of effectively exerting a liquid absorbing function in combination with an absorbent article.

[0002] FIG. 11 is a developed plan view showing a state in which a conventional urine collecting pad 10 is installed inside a disposable diaper 1. The disposable diaper 1 shown in FIG. 11 has an hourglass shape as a whole, and has a front portion 1A applied to the wearer's abdomen, a back portion 1B applied to the buttocks or back, and an intermediate portion 1C applied to the crotch portion. Have.

[0003] FIG. 11 shows a disposable diaper 1 from the inside, and a liquid-permeable top sheet 2 is provided on the inside of the diaper, and a liquid-impermeable back sheet is provided on the outside of the disposable diaper. Absorber 4 is interposed between the back sheet. The absorber 4 has an hourglass-shaped developed shape and is formed of crushed pulp or a mixture of crushed pulp and a super absorbent polymer.

[0004] At the edges on both sides in the width direction of the intermediate portion 1C of the disposable diaper 1, elastic bodies 5, 5 extending in the vertical direction are provided in the region where the top sheet 2 and the back sheet are joined, and the elastic bodies 5 are provided. Leg gathers 6 and 6 can be formed by the contraction force of.

[0005] Hooks 7, 7, ... Are provided on the inner surfaces of both side portions of the back surface portion 1B. When the disposable diaper 1 is worn on the body, the hooking portions 7, 7, ... Are hooked on the outer surface of the front surface portion 1A at the waist portion.

[0006] The urine absorbing pad 10 is provided with a liquid-permeable top sheet 11 on the inner surface side and a liquid-impermeable back sheet on the outer surface side, and crushed pulp or crushed material is provided between the top sheet 11 and the back sheet. An absorption core 13 formed of a mixture of pulp and a super absorbent polymer is interposed. In addition, elastic bodies are vertically attached to the edges of the urine collecting pad 10 on both sides in the width direction to form gathers 14, 14.

[0007] The urine absorbing pad 10 is attached with a liquid-impermeable back sheet facing the top sheet 2 of the disposable diaper 1. Normally, the back sheet of the urine absorbing pad 10 is provided with an adhesive layer for preventing slippage, and this adhesive layer adheres to the top sheet 2 of the disposable diaper 1 to prevent misalignment within the disposable diaper 1.

[0008] As shown in FIG. 11, the urine collecting pad 10 can cope with urinary incontinence of an elderly person, a sick person, or the like while being installed on the inner surface of the disposable diaper 1. That is, since a small amount of urinary incontinence is mainly absorbed by the urinary incontinence pad 10, it is possible to eliminate the frequent replacement of the disposable diaper 1 by exchanging the urinary incontinence pad 10 according to the amount of urinary incontinence.

However, the outer surface side of the conventional urine absorbing pad 10 is a liquid-impermeable back sheet, and the back sheet is directed toward the top sheet 2 of the disposable diaper 1. Therefore, there is a drawback that urine easily leaks from the disposable diaper 1 when the urine absorbing pad 10 cannot completely absorb the urine.

[0010] That is, since the urine absorbing pad 10 has a capacity to absorb urine for one urinary incontinence or about two urinary incontinences in an adult, the urine absorbing pad 10 is frequently replaced. As a result, it is possible to prevent urine from flowing out to the disposable diaper 1.

However, when worn for a long time, such as at night, the number of incontinences increases, and as a result, urine exceeds the permissible amount of the absorption core 13 of the urine absorbing pad 10, and the urine absorbing pad 10 Leaks out of. At this time, the outer surface of the urine absorbing pad 10 is a liquid-impermeable back sheet, which faces the substantially central area of the top sheet 2 of the disposable diaper 1, so that the back sheet of the urine absorbing pad 10 faces each other. The urine leaked from the urine collecting pad 10 is not given to the area where the diaper is present, and the urine overflowing from the urine collecting pad 10 is mainly the area on both sides in the width direction of the middle part 1C of the disposable diaper 1 (i) (i). Flow out to. In these areas (i) and (i), the absorber 4 cannot sufficiently absorb the urine, so that the urine easily leaks to the side of the disposable diaper 1 and stains clothes and sheets. This type of problem is also the same when sanitary napkins are used in layers.

[0012] On the other hand, in the urine collecting pad 10 of FIG. 11, the back sheet on the outer surface side may be liquid permeable. In this case, the urine absorbing pad 10 allows the unabsorbed urine to pass through the liquid-permeable back sheet and be absorbed by the absorbent body of the disposable diaper 1. However, with the existing urine absorbing pad that uses a liquid-permeable backsheet, the entire surface of the backsheet facing the disposable diaper 1 is liquid-permeable, so the urine that has penetrated the backsheet can be attached to the disposable diaper. It is difficult to transfer the liquid, and as a result, it is absorbed only by the pad and easily overflows. In addition, if the urine absorbing pad 10 and the disposable diaper are not sufficiently attached to each other, the urine absorbing pad 10 and the disposable diaper are likely to slip to a place other than the absorption site and leak easily. Other companies' products are not particular about bonding.

[0013] The present invention solves the above-mentioned conventional problems, and enables the absorption cores of a large number of absorbent articles to absorb the body fluid that could not be absorbed when the body fluid exceeds the permissible amount of the absorption core. It is an object of the present invention to provide an absorbent article capable of preventing lateral leakage.

[Means for Solving the Problems] In the absorbent article of the present invention, a liquid-permeable top sheet is provided on the inner surface side, and an absorbing core that absorbs the liquid that has passed through the top sheet is provided inside.<u style="single">, A liquid-impermeable back sheet is provided on the outer surface side,</u><u style="single">The back sheet</u>The absorption core<u style="single">Transparent</u>Liquid<u style="single">Passing</u>Let<u style="single">The opening is</u>It is characterized by being formed.

[0015] For example.<u style="single">The opening area of the opening is</u>Smaller than the area of the absorption core<u style="single">It is a good thing.</u><u style="single">Further, in the present invention, a liquid-permeable top sheet is provided on the inner surface side, an absorption core that absorbs the liquid that has passed through the top sheet is provided inside, and a back sheet is provided on the outer surface side.</u><u style="single">The back sheet is made of a liquid-impermeable sheet,</u>At least cover the absorption core<u style="single">Pass the liquid that has passed through the absorption core through the region.</u>Many holes are formed<u style="single">It is characterized by being.</u><u style="single">The above-mentioned absorbent article is premised on giving a liquid that has permeated the absorbent core to other absorbent articles during repeated use. For example, a urine absorbing pad for nighttime use and a urine absorbing pad for nighttime use as well. Only for sanitary napkins.</u>[0017] It is preferable that the surface of the back sheet is provided with a bonding means for bonding to the inner surface of another absorbent article on the liquid receiving side. As a result, it is possible to prevent the absorbent articles from being displaced from each other when the absorbent articles are used in layers.

[0018] For example, it is preferable that the bonding means is an adhesive layer formed on the surface of the back sheet, and a liquid-impermeable coating sheet covering the opening is detachably bonded to the adhesive layer. ..

[0019] When this covering sheet is provided, it is possible to prevent the permeation of body fluid from the outer surface side into other absorbent articles such as diapers, and it can be used in the same manner as conventional absorbent articles. Further, if the coating sheet is peeled off and used, the body fluid can be given to other absorbent articles when a large amount of body fluid is received by repeated use.

[0023] Further, the bonding means is provided in a central region in the width direction of the absorption core, and the bonding means is provided in a width dimension of 40 to 50 mm, and / or said. The bonding means is preferably provided in an area excluding a range of 30 mm from all edges of the product.

[0024] For example, when used as a urine collecting pad, if the bonding means is provided in the above range, even if the bonding means is attached to the crotch portion and contracts in the width direction, the bonding means is used as another urine absorbing pad in the crotch portion. It can be securely attached to a diaper and can prevent the bonding means from directly hitting the skin. The bonding means may be a mechanical hooking means.

[0025] For example, the absorbent article is used as a urine absorbing pad, and is used by superimposing the outer surface side on a diaper or another urine absorbing pad in a state where the absorbing core is expanded.

[0026] Alternatively, it is used as a urine collecting pad, in which an absorption core is formed in a state of accommodating a penis, and the outer surface side is directed toward the surface of the diaper. In this case, it may be manufactured in an unfolded state and used by wrapping the penis with the top sheet inside, but it is formed in a tubular or triangular pyramid shape so that the penis can be inserted in advance. There may be.

[0027] FIG. 1 (A) is a perspective view showing a urine absorbing pad as an example of the absorbent article of the present invention, and FIG. 1 (B) is a plan view showing the developed state from the outer surface side. , FIG. 2 is a perspective view showing the usage state of the urine collecting pad.

[0028] The urine collecting pad 20 shown in FIGS. 1 (A) and 1 (B) is used for women in a substantially expanded state (slightly curved expanded state) as shown in FIG. 2, for example. Alternatively, it is used for men with the penis wrapped as shown in Fig. 5.

[0029] The urine absorbing pad 20 has a liquid-permeable top sheet 21 on the inner surface side and a liquid-impermeable back sheet 22 on the outer surface side, and an absorption core 23 is interposed between both sheets 21 and 22. There is.

[0030] The top sheet 21 is made of hydrophobic fibers treated with hydrophilicity or formed of hydrophilic fibers, and is, for example, a non-woven fabric such as point bond, air through, spun bond, and spun lace. The back sheet 22 is liquid-impermeable and breathable, and is formed of, for example, an olefin-based resin sheet. The absorption core 23 has a rectangular or hourglass shape in its planar shape and is formed of crushed pulp or a mixture of crushed pulp and a superabsorbent polymer, and the crushed pulp or a mixture of crushed pulp and a superabsorbent polymer is a tissue or the like. Wrapped in absorbent sheet 23a (see Figure 4).

The absorption core 23 has a rectangular planar shape, and the absorption core 23 is sandwiched between the top sheet 21 and the back sheet 22, and the top sheet 21 and the back sheet 22 are the outer circumferences of the absorption core 23. The parts are joined to each other with a hot melt type adhesive or the like.

[0032] In the edge region of the width direction absorbent core 23 is not provided, the elastic members 24 extending in the longitudinal direction (longitudinal direction), contact between the topsheet 21 and the backsheet 22 are wear fixed. The elastic member 24 is joined with a predetermined elongation rate in a state where the top sheet 21 and the back sheet 22 are developed in a plane. As a result, in the free state, the elastic members 24, 24 elastically contract, so that the top sheet 21 and the top sheet 21 and the central region in the vertical direction (Y direction) are formed on both sides of the urine collecting pad 20 in the width direction (X direction). The back sheet 22 is contracted in a wavy shape to form gathers 25 and 25.

[0033] FIG. 1 (B) shows the urine collecting pad 20 from the outer surface side, and the back sheet 22 appears on the front side of the paper surface in the figure, and openings 22a and 22a are formed in the back sheet 22. In the openings 22a and 22a, an absorbent sheet 23a such as the tissue covering the absorbent body of the absorbent core 23 appears, and serves as a liquid permeation region (a) (a). In this embodiment, the openings 22a and 22a (liquid permeation regions (a) and (a)) are vertically elongated holes, and are substantially central in the middle of the width direction (X direction) in the region where the absorption core 23 is provided. It extends parallel to each other and opens in the region and in the vertical direction. The opening areas of the openings 22a and 22a are smaller than the area of the absorption core 23.

[0034] Further, on the surface of the back sheet 22, the region of the outer peripheral portion of the portion where the openings 22a and 22a are open and the region sandwiched between the openings 22a and 22a are adhered as a bonding means. Layer 26 is formed. A coating sheet 27 is adhered to the outside of the back sheet 22 via the adhesive layer 26, and the openings 22a and 22a (liquid permeation regions (a) and (a)) are closed by the coating sheet 27. ing. That is, since the adhesive layer 26 is formed around the entire circumference of the openings 22a and 22a and the covering sheet 27 is attached to the adhesive layer 26, the openings 22a and 22a are completely formed without peeling off the covering sheet 27. The outer surface of the urine absorbing pad is completely opaque.

[0035] The coating sheet 27 is as liquid-impermeable and breathable as the back sheet 22, and is formed of, for example, an olefin-based resin sheet. The adhesive layer 26 is a rubber-based elastomer, an acrylic resin, or the like, and the coating sheet 27 is removable from the back sheet 22, and even after the coating sheet 27 is peeled off, the adhesive layer 26 has a predetermined adhesiveness. When the adhesive layer 26 is installed on the inner surface side of the diaper, the adhesive layer 26 is adhered to the inner surface side of the diaper so that the adhesive layer 26 can function as a slip prevention layer. A knob portion 27a is formed so as to protrude from the tip portion of the covering sheet 27 in the vertical direction, and the knob portion 27a is not adhered to the back sheet 22.

FIG. 2 is a perspective view showing a state in which the urine collecting pad 20 is superposed on a disposable diaper 1 for adult care, and FIG. 3 is a state in which the urine collecting pad 20 is superposed on the disposable diaper 1. Is a developed plan view seen from the inner surface side facing the wearer's skin. Further, FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3, showing a state in which the urine collecting pad 20 is superposed on the disposable diaper 1.

[0037] The disposable diaper 1 has an hourglass shape as a whole, and has a front portion 1A that is applied to the abdomen of the wearer, a back portion 1B that is applied to the buttocks or back, and an intermediate portion 1C that is applied to the crotch portion. ..

[0038] The disposable diaper 1 is provided with a liquid-permeable top sheet 2 on the inner surface side and a liquid-impermeable back sheet 3 on the outside, and an absorber 4 is provided between the top sheet 2 and the back sheet. It is being diapered. The developed body 4 has an hourglass shape, and is formed by crushed pulp or a mixture of crushed pulp and a super absorbent polymer surrounded by an absorbent sheet such as tissue.

[0039] At the edges on both sides in the width direction of the intermediate portion 1C of the disposable diaper 1, elastic bodies 5, 5 extending in the vertical direction are provided in the region where the top sheet 2 and the back sheet are joined, and the elastic bodies 5 are provided. Leg gathers 6 and 6 can be formed by the contraction force of.

[0040] The hooking portions 7 and 7 are provided on the inner surfaces of both side portions of the back surface portion 1B, and the hooking sheets 8 and 8 are attached to the outer surface of the front surface portion 1A. When the disposable diaper 1 is worn on the body, the hooking portions 7, 7, ... Are hooked on the hooking sheets 8, 8 at the waist portion.

Although FIGS. 2 and 3 show an unfoldable type (open type) as a disposable diaper 1, the urine collecting pad 20 of the present invention has both edges of the front portion 1A and both sides of the back portion 1B. It can also be used by stacking it on the inside of a so-called pants-type diaper that is joined to the edge of the diaper.

Next, a method of using the urine collecting pad 20 will be described. For example, the urine absorbing pad 20 can be used as it is without peeling off the covering sheet 27 when the care can be performed frequently such as in the daytime. In this case, as shown in FIG. 1 (B), on the outer surface side of the urine collecting pad 20, the openings 22a and 22a opened in the back sheet 22 are covered with the covering sheet 27, and the outer peripheral portions of the openings 22a and 22a are covered. Since the covering sheet 27 is stopped by the provided adhesive layer 26, the openings 22a and 22a (liquid permeation regions (a) and (a)) are completely closed, and the openings 22a and 22a are outside. Urine is not leaking.

[0043] As described above, the urine collecting pad 20 is installed on the top sheet 2 of the disposable diaper 1 with the covering sheet 27 attached to the back sheet 22 and the back sheet 22 facing the disposable diaper 1 side. Will be done. At this time, in order to prevent the urine collecting pad 20 from being displaced, an adhesive layer is provided on the surface of the back sheet 22 or the surface of the covering sheet 27, and this adhesive layer is adhered to the surface of the top sheet 2 of the disposable diaper 1. You may.

[0044] The urine absorbing pad 20 with the covering sheet 27 attached functions in the same manner as the conventional urine absorbing pad, and the amount of urine absorbed is determined by the absorption capacity of the absorption core 23. For example, if the urine absorption capacity of the absorption core 23 is 300 cc and the amount of urinary incontinence at one time is about 150 cc, for one urinary incontinence or two urinary incontinences, the urine collecting pad 20 is sent to the outside. There is not much urine leakage. Therefore, if the urine absorbing pad 20 is replaced every time urinary incontinence occurs, almost no urine is given to the absorber 4 of the disposable diaper 1, the disposable diaper 1 is hardly contaminated, and the disposable diaper 1 can be used continuously as it is.

Next, when frequent care is not possible, such as at night or when the caregiver goes out, the covering sheet 27 on the outer surface side of the urine absorbing pad 20 is peeled off and used as shown in FIG. .. As shown in FIG. 1 (B), since the covering sheet 27 is provided with a knob portion 27a, the covering sheet 27 can be easily peeled off by grasping and peeling off the knob portion 27a. When the covering sheet 27 is peeled off, the adhesive layer 26 remains on the back sheet 22, and the adhesive layer 26 adheres to the surface of the top sheet 2 of the disposable diaper 1 and functions as an anti-slip layer.

[0046] When the covering sheet 27 is removed, the openings 22a and 22a (liquid permeation regions (a) and (a)) formed in the back sheet 22 are opened, and the openings 22a and 22a absorb tissue and the like. The absorption core 23 surrounded by the sex sheet 23a is exposed, and the absorption core 23 faces the top sheet 2 of the disposable diaper 1 through the openings 22a and 22a.

[0047] For example, assuming that the amount of urine due to one incontinence is 150 cc, this urine is absorbed by the absorption core 23 of the urine absorbing pad 20, but a part of the urine leaks from the openings 22a and 22a and is a disposable diaper. Absorbed by 1 absorber 4. At this time, for example, 100 cc is absorbed by the absorption core 23 of the urine absorbing pad 20, and the remaining 50 cc leaks from the openings 22a and 22a and is absorbed by the absorber 4 of the diaper 1. At this time, since urine is absorbed in the substantially central part of the absorber 4, the urine is absorbed and dispersed inside the absorber 4 and does not leak in the leg gathers 6 and 6 directions on both sides of the diaper 1. ..

[0048] For example, when there are three incontinences, the total amount of urine is about 450 cc. At this time, the absorption core 23 of the urine absorbing pad 20 absorbs 300 cc of urine, and the remaining amount exceeds the absorption capacity. 150cc is absorbed by absorber 4 of diaper 1. In addition, it is possible to direct urine to absorber 4 of diaper 1 in the event of incontinence.

Since the absorption capacity of the absorber 4 of the diaper 1 is sufficiently higher than the absorption capacity of the absorption core 23 of the urine absorbing pad 20, the absorption capacity of the absorption core 23 and the absorption core 4 is substantially the same. It becomes possible to exert the ability effectively, the absorption capacity of urine as a whole can be increased, and the leakage of urine to both sides of the diaper 1 can be completely prevented.

[0050] Further, if there is incontinence about 2 or 3 times, the absorption core 23 of the urine absorbing pad 20 becomes almost saturated with urine, but if the urine absorbing pad 20 is replaced in this state, the absorption of the diaper 1 is performed. Since the amount of urine absorbed by the body 4 is not very large, the disposable diaper 1 can still be used continuously.

Further, as shown by the broken line in FIG. 4, two or more urine absorbing pads 20 of the present invention can be placed on the inside of the diaper 1 in a state where the covering sheet 27 is peeled off. In this case, urine will be absorbed by each of the absorption cores 23 of the two or more urine absorbing pads 20, further increasing the amount of urine absorbed, and even if there are multiple urinary incontinences, the disposable diaper 1 Dirt can be minimized.

[0052] If the covering sheet 27 that closes the liquid permeation region (a) on the outer surface side is provided so that the covering sheet 27 can be peeled off only when necessary, urine can be urinated in a short time, for example, in the daytime. When the removal pad can be replaced, it can be prevented from permeating urine to the diaper side by using it with the covering sheet attached and closing the liquid permeation region (a). In addition, by peeling off the covering sheet 27 and using it only when long-term care is not possible, such as at night, the urine that could not be absorbed by the absorption core of the urine absorbing pad can be absorbed by the diaper absorber. it can.

[0053] The urine absorbing pad of the present invention may be assumed to be used in layers as shown in FIG. 4 without the covering sheet 27 provided in advance. Further, the bonding means is not limited to the adhesive layer, and mechanical hooking means, for example, a sheet having a large number of uncinate protrusions is attached to the surface of the back sheet 22 and stacked as shown in FIG. At that time, the mechanical hooking means may be hooked on the non-woven fabric forming the top sheet 2 of the disposable diaper 1 so that the urine absorbing pad can be prevented from slipping.

[0054] FIGS. 2 to 4 show a case where the urine absorbing pad 20 is used by being stacked on the disposable diaper 1 in a deployed state and is mainly used for women. The urine absorbing pad 20 is used. It can also be used for men.

[0055] In this case, as shown in FIG. 5, the urine collecting pad 20 is rolled so as to have a substantially conical shape from both ends in the vertical direction (Y direction) with the top sheet 21 as the inner surface side, and the open portion. Insert the penis inside the conical pad. At this time, as shown in FIG. 5, the outer surface of one end of the urine absorbing pad 20 in the vertical direction and the inner surface of the other end can be joined by an adhesive layer 28 such as a double-sided adhesive tape.

[0056] Even for men, when frequent care is possible, the penis is in the state shown in FIG. 5 with the openings 22a and 22a (liquid permeation areas (a) and (a)) closed by the covering sheet 27. Insert and install on the inner surface of disposable diaper 1.

[0057] Further, when frequent nursing care is not possible such as at night, the covering sheet 27 is peeled off and the back sheet 22 is opened with openings 22a and 22a. At this time, the urine collecting pad 20 is used with the openings 22a and 22a facing the top sheet 2 of the disposable diaper 1 with the penis inserted. As a result, as shown in FIG. 4, the urine that could not be absorbed by the absorption core 23 of the urine absorbing pad 20 was absorbed from the openings 22a and 22a into the absorber 4 of the disposable diaper 1, and urinary incontinence occurred many times. Will be able to correspond to. For men, a urine absorbing pad formed in advance in a substantially conical or tubular shape may be used, and a liquid permeation region may be formed on the outer surface side of the urine absorbing pad.

[0058] FIGS. 6 (A) and 6 (B) show another configuration example of the urine collecting pad of the present invention. In the urine collecting pad 20A shown in FIG. 6 (A), as an opening in a substantially central region in the middle of the width direction (X direction) of the back sheet 22 on the outer surface side and in a substantially central region in the vertical direction (Y direction). A plurality of round holes (or elliptical holes, etc.) 22b are opened, and a partial liquid permeation region is formed in the region where the absorption core 23 is arranged. Further, a liquid-impermeable coating sheet 27 is detachably installed in the portion where the round hole 22b is formed, and the round hole 22b is closed.

As shown in FIGS. 1B and 6A, the opening of the back sheet constituting the liquid permeation region is the region where the absorption core 23 is provided and is the central portion in the width direction or the width direction. It is preferable that it is formed in the middle portion of the above. If the opening is open in the central or intermediate portion in the width direction, the urine leaked from this opening will be given to the central or intermediate portion of the absorber 4 of the disposable diaper 1, and the absorber 4 This makes it easier to absorb urine and makes it difficult for urine to leak to both sides of the diaper 1 in the width direction.

[0060] In the urine collecting pad 20B shown in FIG. 6 (B), the opening 22c opened in the back sheet 22 extends long in the vertical direction (Y direction), and the absorption core 23 is provided in the area where the absorption core 23 is provided. It opens in almost the same area as. Further, the covering sheet 27 covering the opening 22c is formed in a central portion in the width direction and a length extending over the entire area in the vertical direction, and is attached to the back sheet 22 via an adhesive layer.

[0064] FIGS. 7 and 8 show a more specific structure of the liquid permeation region in the entire area where the absorption core 23 is directed, similar to the urine collecting pad shown in FIG. 6 (B). FIG. 7 is a plan view showing a state in which the stripped sheet is attached, and FIG. 8 is a plan view showing a state in which the stripped sheet is removed. 9 is a plan view showing the state in which the urine absorbing pad shown in FIG. 8 is attached to the disposable diaper from the inner surface side of the disposable diaper, and FIG. 10 is a cross-sectional view taken along line XX of FIG.

[0065] The urine collecting pads 20A and 20B shown in FIGS. 1 and 6 (A) and 6 (B) are provided with a covering sheet 27 capable of completely closing the opening formed in the back sheet 22. When the covering sheet 27 is attached, urine does not leak to the back sheet side and can be used as a normal urine collecting pad. However, the urine collecting pad 20C shown in FIGS. 7 and 8 has a urine collecting pad 20C. As shown in FIG. 10, it is used on the premise that urine permeates into disposable diapers 1 and other urine absorbing pads when they are stacked.

[0066] The basic structure of the urine absorbing pad 20C shown in FIGS. 7 and 8 is a liquid-permeable top sheet 21 on the inner surface side and an outer surface side.<u style="single">Backsheet located in</u>Is the liquid permeation sheet 31, and both sheets 21 and 31<u style="single">of</u>An absorption core 23 is interposed between them. The top sheet 21 and the absorption core 23 are the same as the top sheet and the absorption core shown in FIG.

[0067] The absorption core 23 has a rectangular planar shape, and in a state where the absorption core 23 is sandwiched between the top sheet 21 and the liquid permeation sheet 31, the top sheet 21 and the liquid permeation sheet 31 are the absorption core 23. It is joined to each other by a hot melt type adhesive or the like at the outer peripheral portion on the outer side.

[0068] In the edge region in the width direction in which the absorption core 23 is not provided, the elastic member 24 extending in the vertical direction (longitudinal direction) is adhesively fixed between the top sheet 21 and the liquid permeable sheet 31. The elastic member 24 is joined by giving a predetermined elongation rate in a state where the top sheet 21 and the liquid permeable sheet 31 are developed in a plane. As a result, in the free state, the elastic members 24 and 24 elastically contract, so that the top sheet 21 and the urine absorbing pad 20C are placed on both sides in the width direction (X direction) and in the central region in the vertical direction (Y direction). The liquid permeable sheet 31 is contracted in a wavy shape to form gathers 25 and 25. This is the same as Fig. 1 (A).

As shown in FIG. 8, the liquid permeable sheet 31 is formed of a liquid-impermeable olefin-based resin film, and has a large number of holes only in the region of the liquid permeable sheet 31 that covers the absorption core 23. 31a is open. The hole 31a is circular and has a diameter of at least 0.5 mm or more, preferably 1 mm or more. The arrangement pitch of the holes 31a is 1 mm or more, preferably 1.5 mm or more.

[0070] When the size and the arrangement pitch of the holes 31a are set as described above, when the user looks at the liquid permeable sheet 31, he / she can visually recognize that it has a liquid permeable structure. Therefore, it is difficult to mistake the outer surface side for a liquid-impermeable, normally used urine collecting pad.

Since the liquid permeable sheet 31 has substantially the same size as the top sheet 21 and the holes 31a are formed only in the region covering the absorption core 23, the liquid permeable sheet 31 covers the absorption core 23. The entire area is the liquid permeation region (b), and the outer peripheral portion on the outside of the absorption core is liquid impermeable.

However, even if the liquid permeation sheet 31 has the hole 31a opened on the entire surface,<u style="single">Good.</u>Further, as shown in FIG. 8, on the outer surface side of the urine collecting pad 20C, an adhesive layer 32 is provided on the surface of the liquid permeable sheet 31. The adhesive layer 32 is coated with a hot melt type adhesive, and a plurality of layers are provided linearly in the vertical direction (Y direction) and parallel to each other in the width direction (X direction). Then, the release sheet 33 is attached to the portion of the adhesive layer 32. The release sheet 33 is a surface-treated paper or resin sheet, and the adhesive layer 32 appears when the release sheet 33 is peeled off from the gripped portion 33a.

[0074] Use the urine absorbing pad 20C shown in FIG. 7 when frequent care is not possible, such as at night or when the caregiver goes out. When the release sheet 33 is peeled off during use, the adhesive layer 32 appears on the liquid permeable sheet 31. In addition, a liquid permeation region (b) having the same size as the absorption core 23 appears.

As shown in FIGS. 9 and 10, the liquid permeable sheet 31 of the urine absorbing pad 20C is made to face the top sheet 2, and is attached to the top sheet 2 of the disposable diaper 1 by the adhesive layer 32. Alternatively, as shown in FIG. 10, it may be attached on the top sheet of another urine absorbing pad.

[0076] When the disposable diaper 1 is attached to the top sheet 2 via the adhesive layer 32, the urine absorbing pad 20C is prevented from slipping against the diaper 1, and the liquid permeable sheet 31 of the urine absorbing pad 20C is attached. The urine that cannot be completely absorbed by the absorption core 23 of the urine absorbing pad 20C is easily transmitted from the liquid permeation sheet 31 to the top sheet 2 due to the close contact with the top sheet 2 of the disposable diaper 1, and becomes the absorber 4 of the disposable diaper 1. Easily absorbed. Therefore, it is difficult for urine to leak laterally from between the top sheet 2 of the disposable diaper 1 and the liquid permeation sheet 31 of the urine absorbing pad 20C.

[0077] As described above, in order to improve the adhesion between the liquid permeable sheet 31 and the top sheet 2, the adhesive layer 32 of the urine absorbing pad 20C is formed in the region of the absorption core 23, and the adhesive layer 32 is formed. It is preferable that the length L1 in the vertical direction (Y direction) of the provided region is the same as the length L0 of the absorption core 23, or the length L1 is 50% or more of the length L0. Further, in order not to inhibit the leaching of urine from the liquid permeable sheet 31 into the disposable diaper 1, the total area of the adhesive layer 32 is preferably 60% or less of the area of the absorption core 23.

[0078] Further, when the urine absorbing pad 20C is combined with the disposable diaper 1 for adults, the region where the adhesive layer 32 is formed includes the center of the urine absorbing pad 20C in the width direction, and the width dimension W1 is 40 to 50 mm. It is preferably within the range. When formed within this range, even if the disposable diaper 1 and the urine absorbing pad 20C contract in the X direction (width direction) of FIG. 9 at the wearer's crotch, the disposable diaper 1 and the urine absorbing pad 20C adhere to the adhesive layer 32. It is difficult for the adhesive layer 32 to adhere to the wearer's skin and body hair due to the adhesiveness of the adhesive.

[0079] Further, the region where the adhesive layer 32 is formed is preferably formed in a region excluding the range of W2 = 30 mm and L2 = 30 mm from each edge of the urine absorbing pad 20C. As a result, even if a phenomenon occurs in which the edge of the urine absorbing pad 20C is rolled up in the crotch portion, the adhesive layer 32 is unlikely to come into contact with the skin or body hair. It is preferable that the formation range of the adhesive layer 32 is the same as the formation range of the adhesive layer 26 in the one shown in FIG. 1 (B).

[0080] Further, in the urine collecting pad 20C shown in FIGS. 7 and 8, as the bonding means, a mechanical hooking means, for example, a sheet provided with a large number of hooks is attached instead of the adhesive layer 32. The sheet may be hooked on the top sheet 2 of the disposable diaper 1 to prevent the urine absorbing pad 20C from slipping and to ensure the adhesion to the top sheet 1. In addition, the urine absorbing pad 20C shown in FIGS. 7 and 8 has a shape that wraps the penis as shown in FIG. 5, and can be used for men.

[Effects of the Invention] As described above, in the present invention, body fluids such as urine that could not be completely absorbed by the absorption core can be effectively absorbed by other absorbent articles such as diaper absorbers. The absorption capacity during repeated use can be increased, and leakage of urine to both sides can be prevented.

[0082] Further, if a covering sheet that closes the liquid permeation region on the outer surface side is provided so as to be peelable, it is possible to use the covering sheet in the same state as a normal absorbent article with the covering sheet attached. You can choose freely.

[0083] Alternatively, the liquid permeation region may be widened in advance, and no covering sheet may be provided to close the region, and the region may be used at night on the premise that urine or the like permeates into other absorbent articles during repeated use. it can.

[0084] Further, when the liquid permeation region and the liquid receiving side of the other absorbent article are brought into close contact with each other by the bonding means, urine or the like surely permeates from the absorbent article to the other absorbent article, and the absorbent article Side leakage from between can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] (A) is a perspective view of the urine absorbing pad of the present invention, (B) is a developed plan view seen from the outer surface side, and [Fig. 2] is a disposable urine absorbing pad of the present invention. A perspective view showing a state of being attached to a urine, [Fig. 3] a developed plan view showing a state of attaching the urine absorbing pad of the present invention to a disposable urine, [Fig. 4] a cross-sectional view of lines IV-IV of FIG. 3, [Fig. 5: Perspective view when the urine collecting pad of the present invention is used for men, [Fig. 6] (A) (B) is a perspective view showing another configuration example of the urine collecting pad of the present invention, [Fig. 7]. A developed plan view showing a more specific configuration example of the urine collecting pad shown in FIG. 6 (B), and a developed plan view showing a state in which the release sheet is peeled off from the urine collecting pad shown in FIG. [Fig. 8] A developed plan view showing a state in which the urine collecting pad shown in FIG. 8 is attached to a disposable urine, [Fig. 10] a sectional view taken along line XX in FIG. 9, and [Fig. 11] a conventional urine collecting pad is attached to a disposable urine. Expanded plan view showing the state, [Explanation of symbols] 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 20,20A, 20B, 20C Urine absorbing pad 21 Top sheet 22 Back sheet 22a, 22b, 22c Opening 23 Absorption core 26 Adhesive layer 27 Coating sheet 31 Liquid permeation sheet 31a Hole 33 Release sheet