Absorbent articles

The sub-absorbent body with a water-impermeable sheet in absorbent articles addresses urine leakage and adherence issues, enhancing urine management and preventing pressure ulcers.

JP7608844B2Active Publication Date: 2025-01-07OJI HLDG CORP
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Patent Information

Application Number
JP2021009757
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-01-25
Publication Date
2025-01-07
Estimated Expiration
2041-01-25

AI Technical Summary

Technical Problem

When a user wears an absorbent article, the absorbent body contracts due to pressure from the buttocks, leading to a risk of urine leakage and adherence to the skin near the anus, which can cause pressure ulcers.

Method used

A sub-absorbent body wrapped with a water-impermeable sheet is positioned between the anus and the main absorbent body, creating a space and using a protective member with a liquid-impermeable sheet to prevent urine from adhering to the anus area.

Benefits of technology

Prevents urine from adhering to the skin near the anus, thereby reducing the risk of pressure ulcers by effectively managing urine flow and absorption.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a technique for suppressing urine from adhering to the vicinity of the anal when an absorbent article is attached to a user.SOLUTION: An absorbent article to be attached to the crotch of a user comprises: an absorber body having a liquid permeable top sheet, a liquid impermeable back sheet, and a main absorber arranged between the top sheet and the back sheet, and capable of covering at least from the urethral opening to the anal of the user; and a protective member disposed in a region opposing the anal of the user in the absorber body, and having a sub absorber and a liquid impermeable percolation suppression sheet covering the sub absorber from the main absorber side.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to an absorbent article. [Background technology]

[0002] Absorbent articles such as disposable diapers, incontinence pads, sanitary products, etc. have been developed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-175885 A Summary of the Invention [Problem to be solved by the invention]

[0004] When a user wears an absorbent article, it is expected that the skin contact surface of the absorbent article will be pressed toward the non-skin contact surface by the user's buttocks. Therefore, if an absorbent body is disposed between the skin contact surface and the non-skin contact surface, the absorbent body will shrink in the pressure direction. Therefore, urine absorbed in the absorbent body may flow out from the absorbent body. Therefore, the outflowing urine may flow over the skin contact surface and adhere to the vicinity of the anus. Therefore, the adhered urine may cause bedsores on the skin near the anus.

[0005] Therefore, an object of the present invention is to provide a technique for preventing urine from adhering to the vicinity of the anus when an absorbent article is worn by a user. [Means for solving the problem]

[0006] In order to solve the above problems, in the present invention, a secondary absorbent body wrapped in a water-impermeable sheet is provided between the anus and the main absorbent body.

[0007] In detail, an absorbent article according to one aspect of the present disclosure is an absorbent article worn under the crotch of a user, and comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and a main absorbent body arranged between the top sheet and the back sheet, and is equipped with an absorbent body capable of covering at least the user's urethral opening to the anus, and a protective member provided in a portion of the absorbent body facing the user's anus, and having a secondary absorbent body and a liquid-impermeable water-permeation suppressing sheet covering the secondary absorbent body from the main absorbent body side.

[0008] In addition, in the absorbent article relating to the above-mentioned aspect, the back sheet, the main absorbent body, the secondary absorbent body, and the top sheet may be arranged in layered order, and when worn by the user, a space may be formed between an underside of a part of the protective member facing the user's abdomen and the main absorbent body.

[0009] In the absorbent article according to the above aspect, the main absorbent body may have a slit.

[0010] In the absorbent article according to the above aspect, the main absorbent body may have a recess.

[0011] In the absorbent article according to the above aspect, a thickness of an end portion of the protection member on an abdominal portion side of the user when the absorbent article is worn by the user may become gradually thinner toward the abdominal portion.

[0012] In addition, in the absorbent article relating to the above-mentioned aspect, the underside of the end portion may be provided with a plurality of protrusions aligned in the width direction, protruding toward the main absorbent body and extending from the user's back side to the abdomen side.

[0013] In the absorbent article according to the above aspect, the water-permeation suppressing sheet may have an opening that faces the anus of the user when the absorbent article is worn by the user.

[0014] In the absorbent article according to the above aspect, the thickness of the main absorbent body may be substantially the same in a portion of the main absorbent body overlapped by the protective member and in a region closer to the abdomen side than the portion.

[0015] In addition, in the absorbent article relating to the above-mentioned aspect, the top sheet may have a contact portion that can contact the skin at a position that overlaps with an end of the protective member on the abdominal side of the user when worn by the user.

[0016] Furthermore, in the absorbent article relating to the above-mentioned aspect, when worn by the user, an end of the secondary absorbent body on the abdominal side of the user may have a portion closer to the skin than an end of the secondary absorbent body on the back side of the user.

[0017] In addition, in the absorbent article relating to the above-mentioned aspect, when worn by the user, the end of the secondary absorbent body on the abdominal side of the user may contain more granular absorbent material than the end of the secondary absorbent body on the back side of the user.

[0018] The absorbent article according to the above aspect may further include gathers extending in a width direction as viewed from an end of the protection member on an abdominal side of the user when the absorbent article is worn by the user. Effect of the Invention

[0019] According to the present invention, when the absorbent article is worn by a user, it is possible to prevent urine from adhering to the vicinity of the anus. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a perspective view of a diaper according to an embodiment. [Diagram 2] FIG. 2 is an example of a detailed view of the protective material. [Diagram 3] FIG. 3 is an example of a cross-sectional view of the urine pad cut in the longitudinal direction. [Figure 4] FIG. 4 shows an example of a cross-sectional view of the diaper according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, absorbent articles according to embodiments of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are merely examples, and the present invention is not limited to the configurations of these embodiments.

[0022] First Embodiment In this embodiment, the longitudinal direction of the tape-type disposable diaper is the direction connecting the front body portion arranged opposite the user's abdomen and the rear body portion arranged opposite the user's back. Between the front body portion (one side in the longitudinal direction) and the rear body portion (the other side in the longitudinal direction) (in the center in the longitudinal direction) is located the crotch portion which is arranged under the user's crotch (opposed to the crotch). Furthermore, when the paper diaper is worn by the user (hereinafter abbreviated as "worn state"), the side facing the user's skin (the inner side when worn) is the skin-facing side, and the side opposite the skin-facing side (the outer side when worn) is the non-skin-facing side. Furthermore, the direction connecting the skin-facing side and the non-skin-facing side is the thickness direction, and the longitudinal direction and the thickness direction are defined as the thickness direction and the thickness direction. The direction perpendicular to each of the directions is defined as the width direction. In addition, the view from the thickness direction is defined as the plan view.

[0023] FIG. 1 is a perspective view of a diaper according to this embodiment. The diaper 1 has a crotch region 1B, which is a region corresponding to the crotch region covering the pubic area of ​​the user when worn, a front body region 1F, which is located in front of the crotch region 1B and corresponds to the front body of the user, and a back body region 1R, which is located behind the crotch region 1B and corresponds to the back body of the user. Tapes 2L and 2R that can be attached to a front patch 2F provided on the non-user side surface of the front body region 1F are provided on both left and right edges of the back body region 1R. Thus, when the tapes 2L and 2R are attached to the front patch 2F with the front body region 1F positioned on the user's abdomen side and the back body region 1R positioned on the user's back side, the diaper 1 is fixed to the user's body in a state surrounding the user's abdominal circumference and thighs. Since the diaper 1 is fixed to the user's body in this manner, the user can stand and walk while wearing the diaper 1.

[0024] In the diaper 1, an absorbent capable of absorbing and retaining liquid is mainly arranged around the crotch region 1B. The diaper 1 also includes a urine pad 10 (an example of an "absorbent article" in the present disclosure) that includes an absorbent (an example of an "absorbent body" in the present disclosure) inside, in addition to the absorbent. The urine pad 10 is detachable from the body of the diaper 1, and is arranged from the front body region 1F to the back body region 1R. By arranging the urine pad 10 in this manner, the user's urethral opening to the anus is covered by the urine pad 10. Therefore, urine excreted by the user is absorbed by the urine pad 10. In addition, since urine excreted by the user is mainly absorbed by the urine pad 10, the user may adopt a usage method in which the urine pad 10 is changed several times a day and the diaper 1 body is changed once every few days.

[0025] Furthermore, in order to prevent the formation of gaps between the diaper 1 and the user's skin that could serve as a path for liquid to flow out, the diaper 1 is provided with three-dimensional gathers 3BL, 3BR in areas surrounding the user's thighs and with a waist gather 3R in areas surrounding the user's abdominal circumference. The three-dimensional gathers 3BL, 3BR and the waist gather 3R are fitted closely to the user's skin by the elasticity of the rubber thread. Therefore, liquid discharged from the user's genitals is absorbed in the absorbent body of the diaper 1 (the absorbent body of the diaper 1 body and the urine pad 10) with almost no leakage from the diaper 1.

[0026] FIG. 2 is an example of a detailed view of the protective material 11 (an example of the "protective member" of the present disclosure) provided inside the urine pad 10. FIG. 2(A) is an example of a front view of the protective material. FIG. 2(B) is an example of a side view of the protective material 11. FIG. 2(C) is an example of a rear view of the protective material 11.

[0027] The protective material 11 as shown in Fig. 2 has a rectangular parallelepiped shape with a depth of about 50 mm and a width of about 50 mm. The protective material 11 has an absorbent body 12 (an example of a "secondary absorbent body" in the present disclosure) inside. The absorbent body 12 holds granular absorbent resin such as SAP (an example of an "absorbent material" in the present disclosure). One end 17 in the longitudinal direction of the absorbent body 12 contains more absorbent resin than the other end 18. Therefore, the height of the end 17 is greater than the height of the end 18.

[0028] More specifically, the absorbent body 12 has a structure in which granular absorbent resin such as SAP (Super Absorbent Polymer), which is a hydrophilic polymer with a cross-linked structure capable of absorbing and retaining water, is held in gaps between short fibers of cellulosic fibers such as pulp fibers, rayon fibers, or cotton fibers, or short fibers obtained by hydrophilizing synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate. Therefore, in the absorbent body 12, the volumetric change of the absorbent resin before and after absorbing liquid basically occurs within the short fibers that hold the absorbent resin in the gaps.

[0029] The SAP particles of this embodiment refer to a resin composition containing SAP in a granular form. The term "SAP-containing resin composition" as used herein includes both a composition consisting of SAP alone and a composition containing SAP as the main component and containing other substances to the extent that they do not adversely affect the water absorption. Examples of "other substances" include additives (such as surface modifiers added to make the particle surface hydrophobic) and unreacted monomers remaining during the synthesis of SAP.

[0030] The protective material 11 also includes a liquid-permeable nonwoven fabric 14. The nonwoven fabric 14 is arranged to sandwich the absorbent body 12 in the thickness direction. Therefore, urine adhering to the nonwoven fabric 14 arranged on the upper surface of the absorbent body 12 passes through the nonwoven fabric 14 and is absorbed by the absorbent body 12.

[0031] The protective material 11 also includes a waterproof film 15 (an example of a "water-permeation suppressing sheet" in the present disclosure) that covers the absorbent 12 and the nonwoven fabric 14. The waterproof film 15 has a property of suppressing the permeation of liquid. The waterproof film 15 covers the absorbent 12 and the nonwoven fabric 14, but has an opening (opening 20) on the upper surface. As shown in FIG. 2(B), the waterproof film 15 has a shape in which the thickness of the portion covering the end 17 and the portion covering the end 18 gradually decreases toward the tip when viewed from the side. A rib 16 (an example of a "protrusion" in the present disclosure) is provided on the lower surface 19 of the portion covering the end 17. The rib 16 is convex downward from the lower surface 19. As shown in FIG. 2(C), a plurality of ribs 16 are provided side by side in the width direction.

[0032] FIG. 3 is an example of a cross-sectional view of the urine pad 10 cut in the longitudinal direction. As shown in FIG. 3, the urine pad 10 has a back sheet 5, an absorbent 6 (an example of the "main absorbent" of the present disclosure), a protective material 11, and a top sheet 7, which are laminated in this order. The back sheet 5 and the top sheet 7 are both sheet-like members having a substantially rectangular appearance. The back sheet 5 is a sheet formed of a liquid-impermeable thermoplastic resin material to suppress leakage of excrement. The top sheet 7 is a sheet-like member arranged on the skin side of the user so as to cover the water-absorbing surface of the absorbent 6 and the protective material 11. The top sheet 7 is liquid-permeable in part or in its entirety. Therefore, when the urine pad 10 is attached to the diaper 1, the liquid excreted by the user enters in the direction of the absorbent 6 through the top sheet 7 that may come into contact with the user's skin. For example, woven fabric, nonwoven fabric, and porous film can be used as the material for the top sheet 7. In addition, the top sheet 7 may be hydrophilic.

[0033] The absorbent 6 has a length capable of covering the user's urethral opening to the anus in the longitudinal direction when the urine pad 10 is worn by the user. The absorbent 6 is in a two-layer state on the back sheet 5. That is, the absorbent 6A is placed on the back sheet 5, and the absorbent 6B is further placed on the absorbent 6A. The absorbent 6 has the same properties as the absorbent 12. The absorbents 6A and 6B have approximately uniform thickness. The absorbent 6B has a slit 13 in the width direction as shown in FIG. 3.

[0034] The protective material 11 is provided between the absorbent body 6B and the top sheet 7. The protective material 11 is arranged so that an end portion 17 is located on the user's abdomen side when the urine pad 10 is attached to the diaper 1. The protective material 11 is arranged so as to cover a part of the opening of the slit 13 of the absorbent body 6B.

[0035] When attached to the diaper 1, the back sheet 5, absorbent body 6, and top sheet 7 all extend from the front body region 1F to the rear body region 1R. Thus, both longitudinal ends of the back sheet 5, absorbent body 6, and top sheet 7 are positioned on the user's ventral and dorsal sides. In other words, the user's genitals are covered by the absorbent body 6 from the user's ventral to dorsal sides. Therefore, whether the user excretes liquid from the body in a stomach-down position or a back-down position, the excreted liquid will enter the location of the absorbent body 6 via the top sheet 7.

[0036] (Example of use) The urine pad 10 as shown in Fig. 3 is attached to the diaper 1 so that the protective material 11 covers the user's anus. When the urine pad 10 is attached and used in this manner, at least a part of the tip portion 22 of the top sheet 7 (an example of the "contact portion" of the present disclosure) located toward the user's abdomen from the protective material 11 comes into contact with the user's skin. This prevents urine excreted from the user's urethral opening and flowing on the top sheet 7 from flowing into the contact portion 21 of the top sheet 7 that comes into contact with the skin near the anus. This prevents urine from adhering to the skin near the anus, and as a result, prevents the development of bedsores.

[0037] In addition, since the lower part on the abdominal side of the tip part 22 is hollow, when the urine pad 10 is worn by the user, the abdominal side of the tip part 22 sinks toward the cavity, creating a step between the tip part 22 and the contact part 21. This step also prevents urine flowing over the tip part 22 from flowing onto the contact part 21.

[0038] Furthermore, as shown in Figure 3, even if urine flowing on the top sheet 7 flows from the tip portion 22 into the contact portion 21, the protective material 11 is located below the contact portion 21. Furthermore, the waterproof film 15 on the upper surface of the protective material 11 is open, leaving the nonwoven fabric 14 exposed. Therefore, the urine that flows onto the contact portion 21 permeates into the contact portion 21 and then permeates into the nonwoven fabric 14. The urine then permeates into the absorbent body 12 via the nonwoven fabric 14 and is absorbed into the absorbent body 12. Note that it is assumed that the amount of urine absorbed by the absorbent body 12 in this manner is small.

[0039] Furthermore, as described above, urine flowing over the top sheet 7 is prevented from flowing onto the contact portion 21, and therefore permeation into the top sheet 7 is promoted in the abdominal region rather than the tip portion 22. The urine that has permeated into the top sheet 7 then enters the region where the absorbent 6 is disposed. Here, since the absorbent 6B is provided with slits 13, the urine that has entered is diffused within the slits 13. Thus, the urine is absorbed throughout the absorbents 6A and 6B. Thus, a large amount of urine is absorbed into the absorbents 6A and 6B.

[0040] Furthermore, the waterproof film 15 covering the end portion 17 becomes gradually thinner toward the user's abdomen, and the underside 19 is provided with ribs 16. The shape of the waterproof film 15 and the ribs 16 guide urine downward to the slits 13. Thus, urine is absorbed throughout the entire absorbers 6A and 6B.

[0041] As shown in Fig. 3, the absorbers 6A and 6B have a substantially uniform thickness. A protective material 11 is placed on the absorber 6B, and the protective material 11 is covered with a waterproof film 15 except for an upper opening 20. Thus, the protective material 11 acts as a wall in the longitudinal direction. This prevents urine that has entered from the abdominal direction from returning to the top sheet 7. This prevents urine from adhering to the skin near the anus and from being absorbed by the absorber 12 through the opening 20.

[0042] Moreover, the height of the end 17 is higher than the height of the end 18. Therefore, the protective material 11 functions as a wall against urine that travels from the side direction (towards the abdomen) of the protective material 11 toward the protective material 11. This prevents the urine from returning to the top sheet 7 side. This prevents urine from adhering to the skin near the anus and from being absorbed by the absorbent body 12 through the opening 20. Also, as described above, the end 17 of the absorbent body 12 contains more absorbent resin than the other end 18. Therefore, when the absorbent resin absorbs urine, the absorbent resin expands. Therefore, the height of end 17 is greater than the height of end 18. This increases the effect of protective material 11 as a wall.

[0043] In addition, it is considered that the protective material 11 is compressed in the thickness direction by the user's buttocks. Therefore, it is considered that the area of ​​the slit 13 narrows, and urine that has flowed into the slit 13 moves toward the top sheet 7. However, the protective material 11 is provided so as to cover a part of the slit 13. In addition, the protective material 11 is covered with the waterproof film 15 except for the opening 20. Therefore, the protective material 11 acts as a wall, and urine is prevented from passing through the waterproof film 15 and moving toward the top sheet 7. Therefore, urine is prevented from adhering to the skin near the anus and from being absorbed by the absorber 12 through the opening 20.

[0044] In addition, it is considered that the absorbent 6A or 6B provided below the protective material 11 will shrink due to the protective material 11 being compressed in the thickness direction. Therefore, it is considered that urine will flow out from the absorbent 6A or 6B. However, the protective material 11 is provided overlapping the absorbent 6A and 6B. In addition, the protective material 11 is covered with the waterproof film 15 except for the opening 20 on the upper surface. Therefore, the protective material 11 acts as a wall, and urine is prevented from passing through the waterproof film 15 and moving in the direction of the top sheet 7. Therefore, urine is prevented from adhering to the skin near the anus and from being absorbed by the absorbent 12 through the opening 20.

[0045] (Action and effect) According to the urine pad 10 as described above, a large amount of urine is absorbed by the absorber 6 (6A and 6B). On the other hand, the amount of urine absorbed by the absorber 12 can be suppressed. Therefore, even if the protective material 11 is pressed by the buttocks, the amount of urine flowing out from the absorber 12 can be suppressed. Therefore, adhesion of urine to the skin near the anus is suppressed. Therefore, the occurrence of bedsores on the skin is suppressed.

[0046] In addition, when the protective material 11 is compressed by the buttocks and the absorber 6 (6A and 6B) contracts in the compression direction, the absorber 12 contains a large amount of urine, so urine flows out from the absorber 12. In addition, the volume of the slit 13 also shrinks, so the urine present in the slit 13 overflows. However, the protective material 11 is provided so as to cover a part of the slit 13. In addition, the protective material 11 is covered by the waterproof film 15 except for the opening 20. Therefore, the protective material 11 acts as a wall, and urine is prevented from passing through the waterproof film 15 and moving toward the top sheet 7. Therefore, urine is prevented from adhering to the skin near the anus, and as a result, the occurrence of bedsores is prevented. Alternatively, urine is prevented from being absorbed by the absorber 12 through the opening 20 of the protective material 11. Therefore, a large amount of urine is prevented from being absorbed by the absorber 12. Therefore, even when the protective material 11 is compressed by the buttocks, the amount of urine flowing out from the absorber 12 can be reduced. For this reason, adhesion of urine to the skin in the vicinity of the anus is suppressed, and thus the development of bedsores on the skin is suppressed.

[0047] Furthermore, according to the diaper 1 as described above, the top sheet of the diaper 1 or the top sheet 7 of the urine pad 10 covers both the user's urethral opening and anus to receive excrement, whereas the protective material 11 is positioned in a specific portion of the diaper 1 or the urine pad 10 so as to perform a function specific to that specific portion, such as protecting the anus.

[0048] <Second embodiment> 4 shows an example of a cross-sectional view of a diaper 1C according to the second embodiment. The diaper 1C according to the second embodiment does not include an incontinence pad 10. The diaper 1C also includes a protective material 11C, which is placed on a top sheet 7C of the diaper 1C. The diaper 1C and the protective material 11C are an example of an "absorbent article" according to the present disclosure.

[0049] More specifically, the diaper 1C has a back sheet 5C, an absorbent 26 (26A, 26B, an example of the "absorbent body" and "main absorbent" of the present disclosure), a protective material 11C, and a top sheet 7C, which are laminated in this order. The back sheet 5C and the top sheet 7C are both sheet-like members having a substantially rectangular appearance. The back sheet 5C is a sheet formed of a liquid-impermeable thermoplastic resin material to suppress leakage of excrement. The top sheet 7C is a sheet-like member arranged on the skin side of the user so as to cover the water-absorbing surface of the absorbent 26 (26A, 26B). The top sheet 7C is liquid-permeable in part or in its entirety. Therefore, liquid excreted by the user enters in the direction of the absorbent 26 (26A, 26B) through the top sheet 7C that may come into contact with the user's skin. For example, a woven fabric, a nonwoven fabric, or a porous film can be used as the material for the top sheet 7C. The top sheet 7C may also be hydrophilic.

[0050] The protective material 11C is fixed onto the top sheet 7C such that the end portion 17C is located on the abdomen side of the user. Although not shown, a fixing member such as a double-sided tape (an example of the "fixing portion" of the present disclosure) is provided on the lower surface of the protective material 11C. The top sheet 7C and the protective material 11C are fixed via the double-sided tape.

[0051] When attached to the diaper 1C, the back sheet 5C, the absorbent 26 (26A, 26B), and the top sheet 7C all extend from the front body region 1F to the rear body region 1R. Thus, both longitudinal ends of the back sheet 5C, the absorbent 26 (26A, 26B), and the top sheet 7C are located on the user's ventral side and back side. That is, the user's genitals are covered by the absorbent 26 (26A, 26B) from the user's ventral side to the back side. Therefore, whether the user excretes liquid in a tummy-down position or a back-down position, the excreted liquid will enter the location of the absorbent 26 (26A, 26B) via the top sheet 7.

[0052] (Examples of use and effects) The protective material 11C as shown in Fig. 4 can be attached to the top sheet 7C so as to cover the user's anus. When the protective material 11C is attached and used in this manner, at least a part of the tip portion 24 of the nonwoven fabric 14C located toward the user's abdomen from the opening 20C comes into contact with the user's skin. This prevents urine excreted from the user's urethral opening and flowing over the top sheet 7C from flowing into the contact portion 23 of the nonwoven fabric 14C that comes into contact with the skin near the anus. This prevents urine from adhering to the skin near the anus, and as a result, prevents the development of bedsores.

[0053] Moreover, the protective material 11C is arranged in a convex shape on the top sheet 7C. Furthermore, the height of the end 17C is higher than the height of the end 18C. Therefore, the protective material 11C functions as a wall against urine flowing from the side direction (toward the abdomen) of the protective material 11C toward the protective material 11C. Therefore, the urine flowing through the top sheet 7C is prevented from climbing over the side of the protective material 11C and reaching the vicinity of the anus.

[0054] Therefore, adhesion of urine to the skin and absorption of urine by the absorbent 12C through the opening 20C are suppressed. Also, as described above, the end 17C of the absorbent 12C contains more absorbent resin than the other end 18C. Therefore, when the absorbent resin absorbs urine, the absorbent resin expands, and the height of the end 17C becomes even higher than the height of the end 18C. This enhances the effect of the protective material 11C as a wall. Therefore, adhesion of urine to the skin near the anus is suppressed, and as a result, the occurrence of bedsores is suppressed.

[0055] In addition, three-dimensional gathers 3BL and 3BR are arranged near the end 17C, and the three-dimensional gathers 3BL and 3BR prevent urine from flowing out in the width direction. It is expected that the amount of urine flowing over the top sheet 7C will be large. However, even if the amount of urine flowing over the top sheet 7C is large in this way, the effectiveness of the protective material 11C as a wall is increased, so that urine is prevented from adhering to the skin in the vicinity of the anus.

[0056] Furthermore, the waterproof film 15C covering the end portion 17C becomes gradually thinner toward the user's abdomen, and a rib 16C is provided on the underside 19C. The shape of the waterproof film 15C and the rib 16C guide urine to permeate the top sheet 7C. Thus, the urine is guided to be absorbed by the absorber 26 (26A, 26B).

[0057] 4, even if urine flowing on the top sheet 7C flows from the tip portion 24 into the contact portion 23, the urine penetrates into the absorbent body 12C through the contact portion 23 and is absorbed by the absorbent body 12C. This prevents the skin around the anus from getting wet, thereby preventing the development of bedsores.

[0058] In addition, it is considered that the absorber 12C of the protective material 11C is compressed in the thickness direction by the user's buttocks. However, since it is assumed that the amount of urine absorbed in the absorber 12C is small, even if the absorber 12C contracts, the outflow of urine from the absorber 12C is suppressed. Therefore, the skin in the vicinity of the user's anus is suppressed from becoming wet. Therefore, the occurrence of bedsores is suppressed.

[0059] Furthermore, contraction of the absorber 12C suppresses contraction of the absorber 26 (26A, 26B). This suppresses urine absorbed in the absorber 26 (26A, 26B) from seeping out onto the top sheet 7C. This reduces the possibility of urine moving to the vicinity of the anus. Even if urine flows out from the absorber 26 (26A, 26B) onto the top sheet 7C, the protective material 11C is fixed, so that the urine is prevented from passing through the waterproof film 15C and reaching the vicinity of the anus. This suppresses urine from adhering to the skin near the anus, and as a result, the occurrence of bedsores is suppressed.

[0060] Furthermore, the effects of the first embodiment are similarly achieved in the second embodiment unless there is a contradiction.

[0061] <Other variations> The protective material 11 in the first embodiment may be fixed on the urine pad 10. The protective material 11C in the second embodiment may be provided below the top sheet 7C and above the absorbent 26B. A recess may be provided in the absorbent 6B instead of the slit 13. The slit 13 may not be provided. The waterproof film 15 may be shaped such that the thickness of the portion covering the end 17 and the portion covering the end 18 do not have to be gradually thinner toward the tip. The rib 16 may not be provided. The opening 20 may not be provided. The thickness of the absorbent 6A and 6B may not be uniform. The amount of SAP contained in the end 17 and the end 18 may be approximately the same, and the height of the end 17 and the end 18 may be approximately the same.

[0062] The embodiments and modifications disclosed above can be combined with each other. [Explanation of symbols]

[0063] 1, 1C: Diapers 1B: Inseam area 1F: Front body area 1R: Back body area 2F: Front patch 2L: Tape 2R: Tape 3BL: Three-dimensional gathers 3BR: Three-dimensional gathers 3R: Waist Gather 5, 5C: Back seat 5C: Back seat 6, 26: absorbent 7, 7C: Top sheet 10: Urine pad 11, 11C: Protective material 12, 12C: absorbent 13, 13C: Slit 14,14C: Non-woven fabric 15, 15C: Waterproof film 16, 16C: Rib 17, 17C: End 18: End 19: Below 20, 20C: Open 21: When the connection 22: Tip 23: When the connection 24: Tip

Claims

1. An absorbent article to be worn under the crotch of a user, an absorbent body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and a main absorbent body disposed between the top sheet and the back sheet, and capable of covering at least the area from the urethral opening to the anus of the user; a protective member provided in a portion of the absorbent body facing the anus of the user, the protective member having a secondary absorbent body and a liquid-impermeable water-suppressing sheet covering the secondary absorbent body from the main absorbent body side, The back sheet, the main absorbent body, the secondary absorbent body, and the top sheet are arranged in this order, a space is provided between a lower surface of a part of the protective member on the abdomen side of the user when the protective member is worn by the user and the main absorbent body; The main absorbent body has a slit. Absorbent articles.

2. An absorbent article to be worn under the crotch of a user, an absorbent body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and a main absorbent body disposed between the top sheet and the back sheet, and capable of covering at least the area from the urethral opening to the anus of the user; a protective member provided in a portion of the absorbent body facing the anus of the user, the protective member having a secondary absorbent body and a liquid-impermeable water-suppressing sheet covering the secondary absorbent body from the main absorbent body side, The back sheet, the main absorbent body, the secondary absorbent body, and the top sheet are arranged in this order, a space is provided between a lower surface of a part of the protective member on the abdomen side of the user when the protective member is worn by the user and the main absorbent body; The main absorbent body has a recess. Absorbent articles.

3. An absorbent article to be worn under the crotch of a user, an absorbent body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and a main absorbent body disposed between the top sheet and the back sheet, and capable of covering at least the area from the urethral opening to the anus of the user; a protective member provided in a portion of the absorbent body facing the anus of the user, the protective member having a secondary absorbent body and a liquid-impermeable water-suppressing sheet covering the secondary absorbent body from the main absorbent body side, When the diaper is worn by the user, an end portion of the auxiliary absorbent body on the abdominal side of the user has a portion closer to the skin than an end portion of the auxiliary absorbent body on the back side of the user. Absorbent articles.

4. an end of the secondary absorbent body on the abdomen side of the user when the secondary absorbent body is worn by the user contains a larger amount of granular absorbent material than an end of the secondary absorbent body on the back side of the user; The absorbent article of claim 3.

5. The thickness of the protective member when worn by the user gradually decreases toward an abdominal portion of the user. An absorbent article according to any one of claims 1 to 4.

6. A plurality of protrusions are provided on the lower surface of the end of the secondary absorbent body, protruding toward the main absorbent body, extending from the back side of the user to the abdominal side, and aligned in the width direction. The absorbent article of claim 5.

7. the water-permeation suppressing sheet has an opening that faces the anus of the user when the water-permeation suppressing sheet is worn by the user.

7. An absorbent article according to any one of claims 1 to 6.

8. The thickness of the main absorbent body is substantially the same in a portion of the main absorbent body where the protective member overlaps and in a region closer to the abdomen of the user than the portion. An absorbent article according to any one of claims 1 to 7.

9. the top sheet has a contact portion that can contact the skin of the user at a position that overlaps with an end of the protection member on the abdominal side of the user when the top sheet is worn by the user, 9. An absorbent article according to any one of claims 1 to 8.

10. When worn by the user, as viewed from the abdomen side of the user, gathers are arranged on both sides of the end of the protective member in the width direction of the absorbent article and extend toward the back side of the user.

10. An absorbent article according to any one of claims 1 to 9.

Citation Information

Patent Citations

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