Absorbent articles

Abstract

To provide a technology capable of suppressing moistening of a part projecting toward a skin contact surface of an absorbent article, when the absorbent article is worn on a user.SOLUTION: An absorbent article attached onto user's crotch, includes a liquid permeable top sheet, a liquid impermeable back sheet, an absorber body having a main absorber arranged between the top sheet and the back sheet, capable of covering at least from the urethral opening to the anal of the user, and a protective member provided on a part facing the user's sacrum on the absorber body, and having a secondary absorber, and a liquid impermeable percolation suppression sheet for covering the secondary absorber from the main absorber.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to absorbent articles.

Background Art

[0002] Absorbent articles such as disposable diapers, urine pads, and sanitary products have been developed (for example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a user wearing an absorbent article is in a long-term hospital bed, a protruding part toward the skin contact surface of the absorbent article (for example, the skin covering the protruding part of the sacrum, etc., hereinafter referred to as the compression part) is continuously compressed from the skin contact surface. Therefore, it is considered that bedsores may occur in the compression part. Further, when urine adheres to the compression part, the compression part gets wet. Therefore, the friction between the compression part and the skin contact surface increases, and as a result, it is considered that the bedsore deteriorates.

[0005] Also, as a reaction, it is assumed that the skin contact surface is pressurized toward the non-skin contact surface side by the compression part. Therefore, when an absorber is disposed between the skin contact surface and the non-skin contact surface, the absorber contracts in the pressurizing direction. Therefore, the urine absorbed by the absorber may flow out from the absorber. Therefore, the leaked urine may flow on the skin contact surface and adhere to the compression part. From this, it is also considered that the compression part gets wet and the bedsore deteriorates.

[0006] Therefore, an object of the present invention is to provide a technique for suppressing wetting of a part protruding toward the skin contact surface of an absorbent article when the absorbent article is worn by a user. [Means for solving the problem]

[0007] To solve the above problems, the present invention provides a secondary absorbent wrapped in a water-impermeable sheet between the compression area and the main absorbent.

[0008] More specifically, an absorbent article relating to one aspect of the present disclosure is an absorbent article worn between the legs of a user, comprising an absorbent body having a liquid-permeable top sheet, a liquid-impermeable back sheet, and a main absorbent disposed between the top sheet and the back sheet, and capable of covering at least the user from the urethral opening to the anus, and a protective member provided in the absorbent body at a portion facing the user's sacrum, and having a secondary absorbent and a liquid-impermeable water-restricting sheet that covers the secondary absorbent from the main absorbent side.

[0009] Furthermore, in the absorbent article relating to the above-mentioned side, the back sheet, the main absorbent, the sub-absorbent, and the top sheet may be arranged in stacked order, and there may be a space between the lower surface of a part of the user's abdominal side of the protective member when worn by the user and the main absorbent.

[0010] Furthermore, in the absorbent article relating to the above-mentioned aspect, the main absorbent may have a slit.

[0011] Furthermore, in the absorbent article relating to one of the above-mentioned sides, the main absorbent may have a recess.

[0012] Furthermore, in the absorbent article relating to the above-mentioned aspect, the thickness of the end of the protective member on the user's abdominal side when worn by the user may gradually decrease as it moves towards the abdominal direction.

[0013] Furthermore, in the absorbent article relating to the above-mentioned side surface, the lower surface of the end portion may be provided with a plurality of projections that protrude toward the direction of the main absorbent, extend from the user's back to the abdominal side, and are arranged in the width direction.

[0014] Furthermore, in the absorbent article relating to the above-mentioned one aspect, the water permeability inhibiting sheet may have an opening that faces the sacrum of the user when it is worn by the user.

[0015] Furthermore, in the absorbent article relating to the above-mentioned side, the thickness of the main absorbent may be substantially the same in the portion of the main absorbent where the protective member overlaps and in the region on the abdominal side of that portion.

[0016] Furthermore, in the absorbent article relating to the above-mentioned aspect, the top sheet may have a contact portion that can come into contact with the skin at a position that overlaps with the end of the protective member on the user's abdominal side when worn by the user.

[0017] Furthermore, in the absorbent article relating to the above-mentioned aspect, the end of the auxiliary absorbent on the user's abdominal side when worn by the user may have a portion closer to the skin than the end of the auxiliary absorbent on the user's back side.

[0018] Furthermore, in the absorbent article relating to the above-mentioned aspect, the end of the secondary absorbent on the user's abdominal side when worn by the user may contain more granular absorbent material than the end of the secondary absorbent on the user's dorsal side.

[0019] Furthermore, the absorbent article relating to the above-mentioned aspect may have gathers that extend in the width direction when viewed from the end of the protective member on the user's abdominal side when worn by the user. [Effects of the Invention]

[0020] According to the present invention, when an absorbent article is worn by a user, it is possible to suppress the moisture buildup of the portion of the absorbent article that protrudes toward the skin-contacting surface of the absorbent article. [Brief explanation of the drawing]

[0021] [Figure 1] Figure 1 is a perspective view of a diaper according to an embodiment. [Figure 2]FIG. 2 is an example of a detailed view of the protective material. [Figure 3] FIG. 3 is an example of a cross-sectional view when the urine pad is 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.

Mode for Carrying Out the Invention

[0022] Hereinafter, the absorbent article according to the embodiment of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

[0023] <First Embodiment> In the present embodiment, for a tape-type disposable diaper, the direction connecting the front body portion disposed facing the user's abdomen and the back body portion disposed facing the back is defined as the longitudinal direction. Between these front body portion (one side in the longitudinal direction) and the back body portion (the other side in the longitudinal direction) (the center in the longitudinal direction), there is a crotch portion disposed under the user's crotch (opposite to the groin). Also, in the state where the paper diaper is worn on the user (hereinafter abbreviated as "worn state"), the side facing the user's skin (the inner side in the worn state) is defined as the skin side, and the opposite side of the skin side (the outer side in the worn state) is defined as the non-skin side. Further, the direction connecting the skin side and the non-skin side is defined as the thickness direction, and the direction orthogonal to both the longitudinal direction and the thickness direction is defined as the width direction. In addition, viewing from the thickness direction is defined as a plan view.

[0024] Figure 1 is a perspective view of a diaper according to this embodiment. The diaper 1 has a crotch area 1B, which is a part corresponding to the crotch area that covers the user's genitals when worn; a front body area 1F, which is located in front of the crotch area 1B and corresponds to the user's front body; and a back body area 1R, which is located behind the crotch area 1B and corresponds to the user's back body. Tapes 2L and 2R are provided on the left and right edges of the back body area 1R, which can be attached to a front patch 2F provided on the non-user side of the front body area 1F. Therefore, when the front body area 1F is positioned on the user's abdominal side and the back body area 1R is positioned on the user's back side, and the tapes 2L and 2R are attached to the front patch 2F, the diaper 1 is fixed to the user's body in a manner that surrounds the user's waist 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.

[0025] Diaper 1 has an absorbent material that can absorb and retain liquid, mainly located around the crotch area 1B. In addition, diaper 1 also includes a urine pad 10 (an example of an "absorbent article" in this disclosure) which contains an absorbent material (an example of an "absorbent material body" in this disclosure) separately from the absorbent material. The urine pad 10 is detachable from the main body of diaper 1 and is positioned from the front body area 1F to the back body area 1R. With the urine pad 10 positioned in this way, the user's urethra and anus are covered by the urine pad 10. Therefore, the urine excreted by the user is absorbed by the urine pad 10. Furthermore, since the urine excreted by the user is mainly absorbed by the urine pad 10, the user may change the urine pad 10 several times a day and change the main body of diaper 1 once every few days.

[0026] Furthermore, to prevent the formation of gaps between the diaper 1 and the user's skin that could serve as pathways for liquid leakage, the diaper 1 is equipped with three-dimensional gathers 3BL and 3BR around the user's thighs and a waist gather 3R around the user's waist. The three-dimensional gathers 3BL and 3BR and the waist gather 3R adhere closely to the user's skin due to the elastic force of the elastic threads. Therefore, liquid discharged from the user's genitals is absorbed by the absorbent material of the diaper 1 (the absorbent material of the main body of the diaper 1 and the urine pad 10) with almost no leakage from the diaper 1.

[0027] Figure 2 is an example of a detailed view of a protective material 11 (an example of a "protective member" in this disclosure) provided inside the urine pad 10. Figure 2(A) is an example of a front view of the protective material. Figure 2(B) is an example of a side view of the protective material 11. Figure 2(C) is an example of a rear view of the protective material 11.

[0028] The protective material 11, as shown in Figure 2, has a rectangular parallelepiped shape, with a depth of approximately 50 mm and a width of approximately 50 mm. The protective material 11 contains an absorbent 12 (an example of a "sub-absorbent" in this disclosure) inside. The absorbent 12 holds granular absorbent resin such as SAP (an example of an "absorbent material" in this disclosure). Furthermore, one end 17 in the longitudinal direction of the absorbent 12 contains more absorbent resin than the other end 18. Therefore, the height of end 17 is greater than the height of end 18.

[0029] More specifically, the absorbent material 12 absorbs and retains water in the gaps between short fibers of cellulosic fibers such as pulp fibers, rayon fibers, or cotton fibers, or short fibers of synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate that have been treated to be hydrophilic. The absorbent material has a structure that holds granular absorbent resin, such as SAP (Super Absorbent Polymer), which is a hydrophilic polymer with a cross-linking structure. Therefore, in the absorbent material 12, the volume change of the absorbent resin before and after absorbing liquid basically occurs within the short fibers that hold the absorbent resin in the gaps.

[0030] In this embodiment, SAP particles refer to a resin composition containing SAP that has been made into granules. The term "resin composition containing SAP" here is a concept that encompasses both compositions consisting solely of SAP and compositions in which SAP is the main component and other substances are added to an extent that does not adversely affect water absorption. Examples of "other substances" include additives (such as surface modifiers added to hydrophobicize the particle surface) and unreacted monomers remaining after the synthesis of SAP.

[0031] Furthermore, the protective material 11 includes a nonwoven fabric 14 that is permeable to liquids. The nonwoven fabric 14 is positioned to sandwich the absorbent body 12 in the thickness direction. Therefore, urine adhering to the nonwoven fabric 14 positioned on the upper surface of the absorbent body 12 is absorbed by the absorbent body 12 by passing through the nonwoven fabric 14.

[0032] Furthermore, the protective material 11 includes a waterproof film 15 (an example of the "water permeability suppression sheet" in this disclosure) that covers the absorbent 12 and the nonwoven fabric 14. The waterproof film 15 has the property of suppressing the permeation of liquids. The waterproof film 15 covers the absorbent 12 and the nonwoven fabric 14, but its top surface is open (opening 20). Also, as shown in Figure 2(B), when viewed from the side, the waterproof film 15 has a shape such that the thickness of the portion covering the end 17 and the portion covering the end 18 gradually decreases towards the tip. A rib 16 (an example of the "projection" in this 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. Also, as shown in Figure 2(C), multiple ribs 16 are provided side by side in the width direction.

[0033] Figure 3 is an example of a cross-sectional view when the urine pad 10 is cut along its longitudinal direction. As shown in Figure 3, the urine pad 10 has a back sheet 5, an absorbent 6 (an example of the "main absorbent" in this disclosure), a protective material 11, and a top sheet 7, which are laminated in this order. Both the back sheet 5 and the top sheet 7 are sheet-like members having a substantially rectangular appearance. The back sheet 5 is a sheet formed from a liquid-impermeable thermoplastic resin to suppress leakage of excrement. The top sheet 7 is a sheet-like member that is positioned on the user's skin side so as to cover the absorbent surfaces of the absorbent 6 and the protective material 11. This top sheet 7 is liquid-permeable in part or all of it. Therefore, when the urine pad 10 is attached to the diaper 1, liquid excreted by the user enters in the direction of the absorbent 6 through the top sheet 7, which can come into contact with the user's skin. For example, woven fabric, nonwoven fabric, and porous film can be used as materials for the top sheet 7. Furthermore, the top sheet 7 may be hydrophilic.

[0034] The absorbent material 6 has a length that allows it to cover the user's urethra from the urethra to the anus in the longitudinal direction when the urine pad 10 is attached to the user. Furthermore, the absorbent material 6 is in a two-layer state on the backsheet 5. That is, absorbent material 6A is placed on the backsheet 5, and absorbent material 6B is placed on top of that. The absorbent material 6 has the same properties as absorbent material 12. The thickness of absorbent materials 6A and 6B is approximately uniform. In addition, absorbent material 6B has a slit 13 in the width direction as shown in Figure 3.

[0035] The protective material 11 is placed between the absorbent body 6B and the top sheet 7. The protective material 11 is positioned so that when the urine pad 10 is attached to the diaper 1, its end 17 faces the user's abdomen. The protective material 11 is also positioned to cover a portion of the opening of the slit 13 in the absorbent body 6B.

[0036] When attached to the diaper 1, the backsheet 5, absorbent material 6, and topsheet 7 all extend from the front body area 1F to the back body area 1R. Therefore, the longitudinal ends of the backsheet 5, absorbent material 6, and topsheet 7 are located on the user's ventral and dorsal sides. In other words, the user's genital area is covered by the absorbent material 6 from the ventral to the dorsal side. Consequently, whether the user is lying face down or face down when expelling fluid from their body, the expelled fluid will enter the area where the absorbent material 6 is located via the topsheet 7.

[0037] (Example of use) As shown in Figure 3, the urine pad 10 is attached to the diaper 1 such that the protective material 11 covers the protruding part of the user's sacrum. When the urine pad 10 is attached and used in this manner, at least a portion of the leading edge 22 of the top sheet 7 (an example of the "contact portion" in this disclosure), which is located more towards the user's abdomen than the protective material 11, will come into contact with the user's skin. Therefore, the urine excreted from the user's urethra and flowing over the top sheet 7 is prevented from flowing into the contact portion 21 of the top sheet 7 that comes into contact with the protruding part of the sacrum. As a result, the skin covering the protruding part of the sacrum is prevented from becoming damp, and consequently, the development of pressure ulcers is suppressed.

[0038] Furthermore, since the area below the tip 22 on the abdominal side is hollow, when the user attaches the urine pad 10, the abdominal side of the tip 22 sinks towards the hollow, creating a step between it and the contact portion 21. This step also prevents urine flowing over the tip 22 from flowing onto the contact portion 21.

[0039] Furthermore, as shown in Figure 3, even if urine flowing over 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. Also, the waterproof film 15 on the upper surface of the protective material 11 is open, exposing the nonwoven fabric 14. Therefore, urine that flows onto the contact portion 21 permeates the contact portion 21 and then permeates the nonwoven fabric 14. The urine then permeates the absorbent material 12 via the nonwoven fabric 14 and is absorbed by the absorbent material 12. It is assumed that only a small amount of urine is absorbed by the absorbent material 12 in this manner.

[0040] Furthermore, as described above, the urine flowing over the top sheet 7 is prevented from flowing onto the contact portion 21, thus promoting penetration into the top sheet 7 in the abdominal region compared to the tip portion 22. The urine that has penetrated the top sheet 7 then enters the area where the absorbent material 6 is located. Here, since the absorbent material 6B is provided with a slit 13, the entering urine diffuses within the slit 13. Therefore, the urine is absorbed throughout the entirety of the absorbent materials 6A and 6B. As a result, a large amount of urine is absorbed by the absorbent materials 6A and 6B.

[0041] Furthermore, the waterproof film 15 covering the end 17 gradually thins towards the user's abdomen, and ribs 16 are provided on the lower surface 19. Due to the shape of the waterproof film 15 and the ribs 16, urine is guided to the lower slit 13. Thus, urine is absorbed throughout the entire absorbent bodies 6A and 6B.

[0042] Furthermore, as shown in Figure 3, the thickness of the absorbent bodies 6A and 6B is approximately uniform. A protective material 11 is placed on top of the absorbent body 6B, and the protective material 11 is covered by a waterproof film 15 except for the opening 20 at the top. Therefore, 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 side. Thus, the adhesion of urine to the skin and the absorption of urine into the absorbent body 12 through the opening 20 are suppressed.

[0043] Also, the height of end 17 is higher than the height of end 18. Therefore, the lateral direction of the protective material 11 ( The protective material 11 acts as a barrier against urine moving from the abdominal direction towards the protective material 11. Therefore, it is suppressed that the urine will return to the top sheet 7 side. Thus, it is suppressed that urine adheres to the skin and is absorbed by the absorbent material 12 through the opening 20. In addition, as mentioned above, the end 17 of the absorbent material 12 contains more absorbent resin than the other end 18. Therefore, when the absorbent resin absorbs urine, the absorbent resin expands, and the height of end 17 becomes even higher than the height of end 18. For these reasons, the effectiveness of the protective material 11 as a barrier is enhanced.

[0044] Furthermore, since a portion of the user's sacrum protrudes, it is conceivable that the protective material 11 may be compressed in the direction of the protrusion (thickness direction). Therefore, it is conceivable that the area of ​​the slit 13 will narrow, causing the urine that flows into the slit 13 to move towards the top sheet 7. However, the protective material 11 is provided so as to cover a portion 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 barrier, preventing urine from passing through the waterproof film 15 and moving towards the top sheet 7. Thus, the adhesion of urine to the skin and the absorption of urine into the absorbent material 12 through the opening 20 are suppressed.

[0045] Furthermore, it is conceivable that the absorbent material 6A or 6B located below the protective material 11 may contract due to the pressure on the protective material 11 in the protruding direction. Therefore, it is conceivable that urine may leak out from the absorbent material 6A or 6B. However, the protective material 11 is installed on top of the absorbent materials 6A and 6B. In addition, the protective material 11 is covered by the waterproof film 15 except for the opening 20 on the top surface. Therefore, the protective material 11 acts as a barrier, preventing urine from passing through the waterproof film 15 and moving towards the top sheet 7. Thus, it is prevented that urine will adhere to the skin and be absorbed by the absorbent material 12 through the opening 20.

[0046] (Effects and Benefits) With the urine pad 10 described above, a large amount of urine will be absorbed by the absorbent material 6 (6A and 6B). On the other hand, the amount of urine absorbed by the absorbent material 12 can be suppressed. Therefore, even if the protective material 11 is compressed by the protruding part of the sacrum, the amount of urine leaking out from the absorbent material 12 can be suppressed. Therefore, the amount of urine adhering to the skin covering the protruding part of the sacrum is suppressed. Therefore, the occurrence of pressure ulcers on the skin is suppressed.

[0047] Furthermore, when the protective material 11 is compressed by the protruding part of the sacrum, and the absorbent material 6 (6A and 6B) contracts in the direction of compression, urine will leak out of the absorbent material 12 because it contains a large amount of urine. Also, the volume of the slit 13 will decrease, causing the urine present in the slit 13 to overflow. 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 barrier, preventing urine from passing through the waterproof film 15 and moving towards the top sheet 7. Thus, the adhesion of urine to the skin covering the protruding part of the sacrum is suppressed, and as a result, the occurrence of pressure ulcers is suppressed. Alternatively, the absorption of urine into the absorbent material 12 through the opening 20 of the protective material 11 is suppressed. Therefore, the absorption of a large amount of urine into the absorbent material 12 is suppressed. Thus, even when the protective material 11 is compressed by the protruding part of the sacrum, the amount of urine leaking out of the absorbent material 12 can be suppressed. Therefore, the amount of urine that comes into contact with the skin covering the protruding part of the sacrum is suppressed. Consequently, the development of pressure ulcers on the skin is suppressed.

[0048] <Second Embodiment>

[0049] Figure 4 shows an example of a cross-sectional view of diaper 1C according to the second embodiment. Diaper 1C according to the second embodiment does not have a urine pad 10. Also, diaper 1C does not have a protective material 11C. The protective material 11C is placed on the top sheet 7C of the diaper 1C. The diaper 1C and the protective material 11C are examples of the "absorbent articles" of this disclosure.

[0050] More specifically, diaper 1C consists of a backsheet 5C and an absorbent core 26 (26A, 26B, examples of the “absorbent core body” and “main absorbent core” as disclosed herein). ,to Top sheet 7C , and protective material 11C The components are stacked in this order. The back sheet 5C and the top sheet 7C are both sheet-like members having a roughly rectangular appearance. The back sheet 5C is a sheet made of a liquid-impermeable thermoplastic resin to suppress leakage of excrement. The top sheet 7C is a sheet-like member that is placed on the user's skin side so as to cover the water-absorbing surface of the absorbent body 26 (26A, 26B). This top sheet 7C is liquid-permeable in part or all of its structure. Therefore, liquid excreted by the user enters in the direction of the absorbent body 26 (26A, 26B) through the top sheet 7C, which can come into contact with the user's skin. For example, woven fabric, nonwoven fabric, and porous film can be used as materials for the top sheet 7C. The top sheet 7C may also be hydrophilic.

[0051] The protective material 11C is fixed to the top sheet 7C such that its end 17C faces the user's abdomen. Although not shown in the figures, a fixing member (an example of the "fixing part" in this disclosure), such as double-sided tape, is provided on the underside of the protective material 11C. The top sheet 7C and the protective material 11C are then fixed together via the double-sided tape.

[0052] When the backsheet 5C, absorbent material 26 (26A, 26B), and topsheet 7C are attached to the diaper 1C, they all extend from the front body area 1F to the back body area 1R. Therefore, the longitudinal ends of the backsheet 5C, absorbent material 26 (26A, 26B), and topsheet 7C are located on the user's ventral and dorsal sides. In other words, the user's genital area is covered by the absorbent material 26 (26A, 26B) from the user's ventral to dorsal side. Therefore, whether the user is lying face down or face down when expelling fluid from their body, the expelled fluid will enter the location of the absorbent material 26 (26A, 26B) via the topsheet 7.

[0053] (Examples of use and effects) The protective material 11C, as shown in Figure 4, can be attached to the top sheet 7C so as to cover the protruding portion of the user's sacrum. When the protective material 11C is attached and used in this manner, at least a portion of the leading edge 24 of the nonwoven fabric 14C, which is located towards the user's abdomen from the opening 20C, will come into contact with the user's skin. Therefore, the urine excreted from the user's urethra and flowing over the top sheet 7C is prevented from flowing into the contact portion 23 of the nonwoven fabric 14C that comes into contact with the protruding portion of the sacrum. As a result, the skin covering the protruding portion of the sacrum is prevented from becoming damp, and consequently, the development of pressure ulcers is suppressed.

[0054] Furthermore, the protective material 11C is positioned convexly on the top sheet 7C. In addition, the height of the end portion 17C is higher than the height of the end portion 18C. Therefore, the protective material 11C acts as a barrier against urine flowing from the lateral direction (abdominal direction) towards the protective material 11C. Thus, it is prevented from urine flowing on the top sheet 7C overflowing the sides of the protective material 11C and reaching the vicinity of the sacrum.

[0055] Therefore, the adhesion of urine to the skin and its absorption into the absorbent material 12C through the opening 20C are suppressed. Also, as mentioned above, the end 17C of the absorbent material 12C contains more absorbent resin than the other end 18C. Therefore, when the absorbent resin absorbs urine, the absorbent resin expands, causing the height of end 17C to become even higher than the height of end 18C. As a result, the protective effect of the protective material 11C as a wall is enhanced. Consequently, the skin covering the protruding part of the sacrum is prevented from becoming damp, and as a result, the development of pressure ulcers is suppressed.

[0056] Furthermore, three-dimensional gathers 3BL and 3BR are positioned near the end 17C, and these gathers 3BL and 3BR suppress the outflow of urine in the width direction. Therefore, it is expected that the amount of urine flowing over the top sheet 7C will increase. However, even if the amount of urine flowing over the top sheet 7C is large, the protective effect of the protective material 11C as a wall is enhanced, so that urine does not flow into the protruding part of the sacrum.

[0057] Furthermore, the waterproof film 15C covering the end 17C gradually thins towards the user's abdomen, and a rib 16C is provided on the lower surface 19C. Due to the shape of the waterproof film 15C and the rib 16C, urine is guided to permeate into the top sheet 7C. Thus, the urine is guided to be absorbed by the absorbent material 26 (26A, 26B).

[0058] Furthermore, as shown in Figure 4, even if urine flowing over the top sheet 7C flows from the tip portion 24 to the contact portion 23, the urine permeates into the absorbent material 12C via the contact portion 23 and is absorbed by the absorbent material 12C. Therefore, moisture on the skin covering the sacrum is suppressed. Thus, the occurrence of pressure ulcers is suppressed.

[0059] Furthermore, since a portion of the user's sacrum protrudes, it is conceivable that the absorbent material 12C of the protective material 11C may be compressed in the direction of the protrusion (thickness direction). However, since it is assumed that only a small amount of urine is absorbed by the absorbent material 12C, even if the absorbent material 12C contracts, leakage of urine from the absorbent material 12C will be suppressed. Therefore, the skin covering the user's sacrum will not become damp. Thus, the development of pressure ulcers will be suppressed.

[0060] Furthermore, the contraction of the absorbent material 12C suppresses the contraction of the absorbent material 26 (26A, 26B). Therefore, the leakage of urine absorbed by the absorbent material 26 (26A, 26B) onto the top sheet 7C is suppressed. Thus, the possibility of urine moving to the protruding part of the sacrum is reduced. Even if urine leaks from the absorbent material 26 (26A, 26B) onto the top sheet 7C, the protective material 11C is fixed in place, so the urine is prevented from passing through the waterproof film 15C and reaching the vicinity of the sacrum. Therefore, the adhesion of urine to the skin covering the sacrum is suppressed, and as a result, the occurrence of pressure ulcers is suppressed.

[0061] Furthermore, the effects of the first embodiment are also achieved in the second embodiment, insofar as they do not contradict each other.

[0062] <Other variations> In the first embodiment, the protective material 11 may be fixed on top of the urine pad 10. In the second embodiment, the protective material 11C may be provided below the top sheet 7C and above the absorbent body 26B. In addition, a recess may be provided in the absorbent body 6B instead of the slit 13. In addition, the slit 13 may not be provided. In addition, the shape of the waterproof film 15 does not have to be such that the thickness of the portion covering the end 17 and the portion covering the end 18 gradually decreases towards the tip. In addition, the rib 16 may not be provided. In addition, the opening 20 may not be provided. In addition, the thickness of the absorbent bodies 6A and 6B does not have to be uniform. In addition, the amount of SAP contained in the end 17 and the end 18 may be approximately the same, and the heights of the end 17 and the end 18 may be approximately equal.

[0063] Furthermore, the size of the protective material 11 should be no more than 200 mm in depth and no more than 150 mm in width. This is because, as a result of measuring the sacrum and other parts of various subjects, it was found that these dimensions are sufficient to cover the part of the adult male genitalia corresponding to the sacrum. With a protective material 11 of this size, it is prevented from reaching the position opposite the user's anus and urethra. Therefore, a large amount of urine or watery liquid will not reach the protective material 11. The adhesion of excrement such as feces is suppressed. Therefore, while the top sheet of diaper 1 and the top sheet 7 of urine pad 10 cover both the user's urethral opening and anus to catch excrement, the protective material 11 can be placed in specific areas of diaper 1 and urine pad 10 to perform functions specific to those areas, such as protecting the sacrum.

[0064] The embodiments and modifications disclosed above can be combined in any way. [Explanation of Symbols]

[0065] 1, 1C: Diaper 1B: Inseam area 1F: Front bodice area 1R: Back panel 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 material 7, 7C: Top sheet 10: Urinary pads 11, 11C: Protective material 12, 12C: Absorbent material 13, 13C: Slit 14,14C: Non-woven fabric 15, 15C: Waterproof film 16, 16C: Rib 17, 17C: End 18: End 19: Bottom surface 20, 20C: Opening 21: Contact part 22:Tip 23: Contact part 24:Tip

Claims

1. An absorbent article that is worn between the user's legs, An absorbent body comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and a main absorbent disposed between the top sheet and the back sheet, capable of covering at least the user from the urethral opening to the anus, The absorbent body is provided in a portion facing the user's sacrum and comprises a protective member having a sub-absorbent and a liquid-impermeable water-suppressing sheet that covers the sub-absorbent from the main absorbent side, The water permeability-restricting sheet has an opening that faces the user's sacrum when worn by the user, and covers the sides and bottom of the auxiliary absorber. Absorbent material.

2. The back sheet, the main absorber, the sub-absorber, and the top sheet are arranged in that order, When the protective member is attached to the user, there is a space between a portion of the lower surface on the user's abdominal side and the main absorbent. The absorbent article according to claim 1.

3. The main absorbent is provided at a position that overlaps in the thickness direction with at least the end of the protective member on the user's abdominal side, and has a slit that extends in the width direction of the absorbent article. The absorbent article according to claim 2.

4. The main absorbent is provided at a position that overlaps in the thickness direction with at least the end of the protective member on the user's abdominal side, and has a recess that extends in the width direction of the absorbent article. The absorbent article according to claim 2.

5. When worn by the user, the thickness of the end of the protective member on the user's abdominal side gradually decreases as it moves towards the user's abdomen. The absorbent article according to any one of claims 2 to 4.

6. The lower surface of the end of the protective member is provided with a plurality of projections that protrude toward the main absorber, extend from the user's back to their abdomen, and are aligned in the width direction. The absorbent article according to claim 5.

7. The thickness of the main absorbent is the same in the portion of the main absorbent where the protective member overlaps and in the region corresponding to the user's abdominal side of that portion. The absorbent article according to any one of claims 1 to 6.

8. The top sheet has a contact portion that can come into contact with the user's skin at a position that overlaps with the end of the protective member on the user's abdominal side when worn by the user. The absorbent article according to any one of claims 1 to 7.

9. When worn by the user, the end of the auxiliary absorbent on the user's abdominal side has a portion that is closer to the user's skin than the end of the auxiliary absorbent on the user's back side. The absorbent article according to any one of claims 1 to 8.

10. When worn by the user, the end of the auxiliary absorbent on the user's abdominal side contains more granular absorbent material than the end of the auxiliary absorbent on the user's dorsal side. The absorbent article according to claim 9.

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