Absorbent article

Abstract

To provide an absorbent article with improved wearing feeling for a user.SOLUTION: An absorbent article includes: a water permeability sheet; a pair of first non-water-permeability sheets having non-water-permeability and provided in a width direction, the first non-water-permeability sheets including an elastic member having an end edge in the width direction joined to the water permeability sheet and bonded so as to extend in a longitudinal direction in a stretched state in an opposite side to a region where the water permeability sheet is joined in the width direction, and a fixation part; a second non-water-permeability sheet joined to the first non-water-permeability sheet having the elastic member therebetween in a region where the first non-water-permeability sheet is contracted due to the elastic member, extending further in the width direction outside than the elastic member, not joined to the water permeability sheet, and having non-water-permeability; a discharge liquid inflow part that causes discharge liquid to flow in a region where the second non-water-permeability sheet and the elastic member are bonded; and a discharge liquid holding region extending from the elastic member to the width direction inside, forming a space in between the first non-water-permeability sheet and the second non-water-permeability sheet, and holding the discharge liquid that flowed in from the discharge liquid inflow part.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] 2. Description of the Related Art Absorbent articles such as disposable diapers are known in the art (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-068464 A Summary of the Invention [Problem to be solved by the invention]

[0004] In an absorbent article, the absorbent body absorbs and retains the liquid discharged by the wearer. However, depending on the posture of the wearer, such as lying on one's side, the absorbent body may not be located below the wearer, and the liquid discharged by the wearer may leak out to the outside in the width direction of the absorbent article.

[0005] An object of the present invention is to provide an absorbent article that suppresses leakage of liquid discharged by a wearer. [Means for solving the problem]

[0006] An absorbent article according to one aspect of the present invention comprises: A length along a longitudinal direction corresponding to the front-rear direction of the wearer, and a length along a width direction perpendicular to the longitudinal direction, an absorbent body that absorbs liquid discharged by the wearer; A water-permeable sheet disposed on the skin side of the absorbent body; a pair of first non-water-permeable sheets in the width direction, each of which extends in the longitudinal direction, has its edge in the width direction joined to the water-permeable sheet, and has an elastic member bonded to the opposite side of the region in the width direction to which the water-permeable sheet is joined so as to extend in the longitudinal direction in a stretched state; and a fixing portion connected to the water-permeable sheet at the end in the longitudinal direction; a second water-impermeable sheet that is joined to the first water-impermeable sheet with the elastic member sandwiched therebetween in a region where the first water-impermeable sheet is contracted by the elastic member, extends outward in the width direction beyond the elastic member, and is not joined to the water-permeable sheet; a discharged liquid inlet portion for injecting the discharged liquid into an area where the second non-permeable sheet and the elastic member are bonded; a discharged liquid holding region extending inward in the width direction from the elastic member, forming a space between the first water-impermeable sheet and the second water-impermeable sheet, and holding the discharged liquid that has flowed in from the discharged liquid inlet portion; Equipped with. Effect of the Invention

[0007] According to the present invention, it is possible to suppress leakage of fluid discharged by the wearer. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a diaper according to an embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the diaper according to the embodiment. [Diagram 3] FIG. 3 is a cross-sectional view of the diaper according to the embodiment. [Figure 4] FIG. 4 is a plan view of the diaper according to the embodiment. [Diagram 5] FIG. 5 is an enlarged view of a side sheet provided in the diaper according to the embodiment. [Figure 6] FIG. 6 is a plan view of a diaper according to a modified example. [Figure 7] FIG. 7 is a plan view of a diaper according to a modified example, as viewed from the cover sheet side. [Figure 8] FIG. 8 is a diagram showing an example of how the diaper according to the modified example is folded in a distributed state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] 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.

[0010] <Embodiment> In this embodiment, the longitudinal direction of a tape-type disposable diaper (an example of an "absorbent article" in the present application, hereinafter simply referred to as a "diaper") is the direction connecting the front body facing the wearer's abdomen and the rear body facing the back. Between the front body (one side in the longitudinal direction) and the rear body (the other side in the longitudinal direction) (at the center in the longitudinal direction), a crotch portion facing the wearer's crotch (positioned facing the crotch). In addition, when the diaper is worn by a wearer (hereinafter abbreviated as "worn state"), the side facing the wearer's skin (the inner side when worn) is the skin-facing side, and the opposite side to 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 direction perpendicular to both the longitudinal direction and the thickness direction is the width direction. In addition, the view from the thickness direction is the planar view. A diaper has a length along a longitudinal direction corresponding to the front-to-rear direction of a wearer, and a length along a width direction perpendicular to the longitudinal direction, and is worn between the crotch of a wearer. In addition, terms related to directions used in this application mean directions corresponding to the front-to-rear and left-to-right directions of a wearer when the diaper is worn. For example, the front-to-rear direction in this application means a direction corresponding to the front-to-rear and left-to-right directions of a wearer when the diaper is worn. In addition, the left-to-right direction in this application means a direction corresponding to the left-to-right directions of a wearer when the diaper is worn.

[0011] FIG. 1 is a perspective view of a diaper 1 according to this embodiment. The diaper 1 according to this embodiment is for adults (for nursing care). The diaper 1 has a crotch region 1B, which is a region corresponding to the crotch covering the pubic area of ​​the wearer when worn, a front body region 1F, which is located in front of the crotch region 1B and corresponds to the waist of the wearer's abdomen, and a back body region 1R, which is located behind the crotch region 1B and corresponds to the waist of the wearer's back. On both left and right edges of the back body region 1R, there are provided tapes 2L1, 2L2, 2R1, and 2R2, which have hook portions arranged on the wearer's skin side and can be attached to a front patch 2F provided on the front body region 1F and looped on the non-skin side by the hook portions. When the tapes 2L1, 2L2, 2R1, and 2R2 are attached to the front patch 2F with the front body region 1F positioned on the wearer's abdomen and the rear body region 1R positioned on the wearer's back, the diaper 1 is fixed to the wearer's body in a state surrounding the wearer's waist and thighs. Since the diaper 1 is fixed to the wearer's body in this manner, the wearer can freely change his or her body position while wearing the diaper 1.

[0012] In the diaper 1, an absorbent 6 capable of absorbing and retaining liquid is disposed mainly around the crotch region 1B. In addition, in order to prevent the formation of gaps between the diaper 1 and the wearer's skin that could serve as a liquid outflow path, the diaper 1 is provided with leg gathers 3AL, 3AR in areas along the wearer's leg circumference (thighs), and three-dimensional gathers 3L, 3R are provided on the inside of the leg gathers 3AL, 3AR in the width direction of the diaper 1, and a waist gather 3W is provided in areas along the wearer's abdominal circumference. The leg gathers 3AL, 3AR, three-dimensional gathers 3L, 3R and waist gathers 3W are brought into close contact with the wearer's skin by the elastic force of the elastic members. Thus, liquid discharged from the wearer is absorbed by the absorbent 6 without leaking out of the diaper 1. As the elastic member, a rubber thread or band may be appropriately selected.

[0013] FIG. 2 is an exploded perspective view of the diaper 1 according to the embodiment. FIG. 3 is a cross-sectional view of the diaper 1 according to the embodiment cut in the width direction at the center in the longitudinal direction. FIG. 4 is a plan view of the diaper 1 according to the embodiment. The diaper 1 has a cover sheet 4 that forms an outer surface when worn. The cover sheet 4 is a sheet-like member having a substantially rectangular appearance with constrictions 4KL, 4KR at the portions corresponding to the long sides, and forms the exterior surface of the diaper 1. The constrictions 4KL, 4KR are provided at the portions where the wearer's thighs are located (leg surrounding portions 10L, 10R shown in FIG. 4). The cover sheet 4 is provided to reinforce the back sheet 5 described later and to improve the feel. For example, in order to suppress leakage of excrement, a nonwoven fabric made of a liquid-impermeable thermoplastic resin can be used as the material thereof. Examples of liquid-impermeable thermoplastic resins include polyethylene (PE) and polypropylene (PP). The cover sheet 4 forms the outer peripheral shape (outer shape) of the diaper 1. The cover sheet 4 is a sheet that forms the front body region 1F, the crotch region 1B, and the back body region 1R. The cover sheet 4 is not limited to a single-layer structure, and may be a multi-layer structure having an inner cover sheet and an outer cover sheet.

[0014] The diaper 1 has a back sheet 5, an absorbent 6, and a top sheet 7 (an example of the "water-permeable sheet" in this application) laminated in this order on the skin-facing side of the cover sheet 4. The back sheet 5 has the same planar shape as the cover sheet 4. The back sheet 5 is a sheet-like member having a substantially rectangular appearance with constrictions 5KL, 5KR at the portions corresponding to the long sides, and is arranged on the skin-facing side of the cover sheet 4. The constrictions 5KL, 5KR are provided at the portions where the wearer's thighs are located (leg surrounding portions 10L, 10R shown in FIG. 4). The top sheet 7 is a sheet-like member having a substantially rectangular appearance. The top sheet 7 is made of a water-permeable sheet. The absorbent core 6C of the absorbent 6 is a mat-like member having a substantially hourglass-shaped appearance. The top sheet 7 may have constrictions at the portions corresponding to the long sides, similar to the back sheet 5.

[0015] The back sheet 5, absorbent 6, and top sheet 7 are laminated in order on the cover sheet 4 with their longitudinal direction coinciding with the longitudinal direction of the cover sheet 4. The back sheet 5, like the cover sheet 4, is a film formed of a liquid-impermeable thermoplastic resin material to suppress leakage of discharged liquid. The back sheet 5 is preferably made of a material that also has moisture permeability to suppress stuffiness when worn. The top sheet 7 is a sheet-like member that is placed on the wearer's skin side so as to cover the water-absorbing surface of the absorbent 6. This top sheet 7 has water permeability in part or all of it. Therefore, when the diaper 1 is worn, the discharged liquid discharged by the wearer passes through the top sheet 7 that may come into contact with the wearer's skin and enters the absorbent 6, where it is absorbed. For example, a woven fabric, a nonwoven fabric, or a porous film is used as the material for the top sheet 7. The top sheet 7 may be hydrophilic. The joining of the sheets and the like includes adhesion with a hot melt adhesive, ultrasonic fusion, and the like.

[0016] The back sheet 5, absorbent body 6, and top sheet 7 all extend from the front body region 1F to the back body region 1R. Therefore, when the wearer's private parts are covered with the cover sheet 4 in which the back sheet 5, absorbent body 6, and top sheet 7 are laminated, both ends in the longitudinal direction of the back sheet 5, absorbent body 6, and top sheet 7 are located on the wearer's ventral side and back side. In other words, the wearer's private parts are covered by the absorbent body 6 from the wearer's ventral side to the back side. Therefore, whether the wearer is lying in a supine position or a prone position, the discharged liquid comes into contact with the absorbent body 6 via the top sheet 7.

[0017] The absorbent body 6 has an absorbent core 6C and a core wrap sheet 6W that wraps the absorbent core 6C. In this embodiment, the absorbent core 6C is formed by laminating a plurality of absorbent mats. In this embodiment, the absorbent core 6C has an upper absorbent mat 6A arranged on the skin side and a lower absorbent mat 6B arranged on the non-skin side. The upper absorbent mat 6A is an absorbent mat that is arranged on the skin side of the wearer when worn, and has an hourglass shape with a narrowed part in the crotch region 1B when viewed from above. In contrast, the lower absorbent mat 6B is an absorbent mat that is arranged on the non-skin side of the wearer when worn, and has a rectangular shape when viewed from above. The lower absorbent mat 6B is arranged around the center part in the width direction of the absorbent body 6, and its total width is equal to or smaller than the narrowed part of the upper absorbent mat 6A. In other words, the lower absorbent mat 6B is layered with the upper absorbent mat 6A so that it is entirely hidden by the upper absorbent mat 6A when viewed from the skin side.

[0018] The crotch region 1B is sandwiched between the wearer's legs, and thus compressive pressure is applied inward in the width direction. On the other hand, in the front body region 1F and the back body region 1R, the weight of the wearer is applied, and pressure is applied in the thickness direction of the absorbent core 6C. To deal with these pressures, the crotch region 1B of the absorbent core 6C is provided with a constriction. Furthermore, the upper layer absorbent mat 6A and the lower layer absorbent mat 6B are laminated to give the absorbent core 6C in the crotch region 1B a high basis weight. This prevents the absorbent core 6C from losing its shape inward in the width direction in the crotch region 1B. Also, in the front body region 1F and the back body region 1R, the width of the absorbent core 6C is widened to increase the area on which the weight is applied, thereby preventing the absorbent core 6C from losing its shape in the thickness direction. For this reason, it is preferable to make the absorbent core 6C approximately hourglass-shaped.

[0019] The absorbent core 6C has a structure in which granular absorbent resin such as SAP (Super Absorbent Polymer), a hydrophilic polymer with a cross-linked structure capable of absorbing and retaining water, is held in the gaps between short fibers (absorbent materials) of cellulosic fibers such as pulp fibers, rayon fibers, or cotton fibers, or between short fibers obtained by hydrophilizing synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate. Therefore, in the absorbent core 6C, 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. Therefore, when the absorbent core 6C is viewed as a whole, it can be said that the expansion rate of the thickness of the absorbent core 6C that absorbs liquid is not as large as the expansion rate of the absorbent resin itself.

[0020] 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.

[0021] The upper absorbent mat 6A is provided with a pair of slits 6H on the left and right. The slits 6H extend obliquely with respect to the longitudinal direction of the diaper 1 so that the front side faces outward in the width direction. The slits 6H penetrate the upper absorbent mat 6A in the thickness direction. The upper absorbent mat 6A is formed using a mold that does not allow absorbent materials such as short fibers to be laminated in the formation area of ​​the slits 6H, so that the slits 6H are also formed. In this embodiment, the slits 6H are of the through type, but they may be of the non-through type. The lower absorbent mat 6B may also be provided with a through type slit, and in this case, the slits provided in the upper absorbent mat 6A and the lower absorbent mat 6B may overlap each other in the thickness direction. Instead of the slits 6H, grooves may be provided by compressing the skin-facing side of the upper absorbent mat 6A. The diaper 1 according to this embodiment absorbs and retains urine discharged by the wearer with the absorbent body 6. In the diaper 1, urine can be dispersed along the slits 6H, and therefore the urine can be absorbed and retained by the entire upper absorbent mat 6A and the lower absorbent mat 6B.

[0022] The core wrap sheet 6W is a thin liquid-permeable sheet. By wrapping the absorbent core 6C in the core wrap sheet 6W, the SAP of the absorbent core 6C described above is less likely to become mixed with other structures. Also, the absorbent core 6C is prevented from losing its shape. The core wrap sheet 6W can be made of pulp fiber, and tissue paper can be used as an example. The absorbent body 6 is wrapped in the back sheet 5 and the top sheet 7, and these sheets can also prevent the absorbent core 6C from losing its shape, so the core wrap sheet 6W may not be provided.

[0023] The diaper 1 also has long, narrow, strip-shaped side sheets 8L, 8R. The side sheets 8L, 8R are liquid-impermeable sheets provided on the long sides of the top sheet 7. The side sheets 8L, 8R are arranged on the outside of the center in the width direction of the diaper 1. Like the cover sheet 4, the side sheets 8L, 8R have constrictions 8KL, 8KR at the regions where the wearer's thighs are located (leg-surrounding regions 10L, 10R shown in FIG. 4). The side sheets 8L, 8R have elastic members 8EL, 8ER (an example of the "elastic member" in this application) arranged in a stretched state along the longitudinal direction. The side sheets 8L, 8R are pulled in the longitudinal direction by the stretching force of the elastic members 8EL, 8ER and rise from the top sheet 7 to the skin-facing side. In this embodiment, three elastic members 8EL, 8ER are provided at intervals in the width direction of the absorbent article. Of the three elastic members 8EL, 8ER, one is disposed on the side of the upright lines 84L, 84R, and two are disposed on the side of the free ends 82LA, 82RA. Note that it is sufficient that one or more elastic members 8EL, 8ER are provided depending on the required elastic force.

[0024] The side sheets 8L, 8R have, on the skin-facing side of the top sheet 7, bonding regions 81L, 81R that are bonded to the top sheet 7 on the outer side in the width direction of the diaper 1, and non-bonded regions 82L, 82R that are not bonded to the top sheet 7 on the inner side in the width direction of the bonding regions 81L, 81R. The side sheets 8L, 8R are bonded to the top sheet 7 in the bonding regions 81L, 81R, and the side sheets 8L, 8R are bonded to the back sheet 5 disposed on the non-skin-facing side of the top sheet 7 on the outer side of the top sheet 7. A hot melt adhesive is applied to the top sheet 7 and the back sheet 5 disposed on the non-skin-facing side of the side sheets 8L, 8R, and the side sheets 8L, 8R are laminated thereon to form the bonding regions 81L, 81R. The bonding regions 81L, 81R may be bonded in a straight line or a curved line.

[0025] In non-bonded regions 82L, 82R located widthwise inside of the bonded regions 81L, 81R, the side sheets 8L, 8R are not bonded to the top sheet 7. Bonded refers to a state in which the bonded materials cannot be peeled apart without tearing or destroying the materials, such as the sheets, of the diaper 1. The sheets to be bonded may not only be different sheets, but also a single sheet may be folded over to bond an overlapping region.

[0026] At both longitudinal ends of the non-bonded regions 82L, 82R, fixing portions 90L, 90R, 91L, 91R are provided that fix the side sheets 8L, 8R to the top sheet 7 with hot melt adhesive. The fixing portions 90L, 90R are provided in the back body region 1R, and the fixing portions 91L, 91R are provided in the front body region 1F. The fixing portions 90L, 90R, 91L, 91R are formed by hot melt adhesive applied in stripes between the side sheets 8L, 8R and the top sheet 7, and adhere and fix the side sheets 8L, 8R to the top sheet 7.

[0027] In the side sheets 8L, 8R, non-bonded regions 82L, 82R between the front and rear fixing parts 90L, 90R, 91L, 91R rise from the top sheet 7 toward the skin side. More specifically, the side sheets 8L, 8R are boundaries between the bonded regions 81L, 81R and the non-bonded regions 82L, 82R, and the inner non-bonded regions 82L, 82R rise toward the skin side at the curved upright lines 84L, 84R. This forms a gap between the side sheets 8L, 8R and the top sheet 7.

[0028] In this embodiment, the side sheets 8L, 8R are provided on both the left and right sides of the diaper 1. Here, the side sheets 8L, 8R have free ends 82LA, 82RA arranged inside the non-bonded regions 82L, 82R, and the above-mentioned elastic members 8EL, 8ER arranged on the free ends 82LA, 82RA side. When an absorbent pad is inserted between the non-bonded regions 82L, 82R and the top sheet 7, it is preferable to raise the free ends 82LA, 82RA from the top sheet 7 to the skin side by the elastic force of the elastic members 8EL, 8ER. Since the side sheets 8L, 8R are impermeable to water, the non-bonded regions 82L, 82R rise up and abut against the skin surface of the wearer, thereby eliminating any gap that may be formed between the diaper 1 and the skin surface, and suppressing leakage of excreta such as urine to the outside. The non-bonded regions 82L, 82R tend to rise from the top sheet 7 in the regions where the stretching force of the elastic members 8EL, 8ER acts, and these rising portions form three-dimensional gathers 3L, 3R which are leakage barriers that prevent discharged liquids and waste from leaking to the outside. The elastic members 8EL, 8ER exert their stretching force mainly in the crotch region 1B, so that the non-bonded regions 82L, 82R can function as leakage barriers in the crotch region 1B where the top sheet 7 and absorbent pad are furthest from the wearer's skin. The three-dimensional gathers 3L, 3R may be formed along the rising lines 84L, 84R so as to cover the skin-facing side of the side sheets 8L, 8R that are disposed on the widthwise outer side of the diaper 1 than the rising lines 84L, 84R.

[0029] The side sheets 8L, 8R are doubled by folding back a single sheet at the inner end (free end 82LA, 82RA side) in the width direction. The elastic members 8EL, 8ER are sandwiched between the double side sheets 8L, 8R. Non-adhesive regions 85L, 85R, 86L, ​​86R in which the double side sheets 8L, 8R are not adhered to each other are provided on the upright lines 84L, 84R side, which are closer to the longitudinal end of the diaper 1 than the stretchable regions where the elastic members 8EL, 8ER stretch. The non-adhesive regions 85L, 85R are provided in the rear body region 1R, and the non-adhesive regions 86L, ​​86R are provided in the front body region 1F. By providing the non-adhesive regions 85L, 85R, 86L, ​​and 86R on the extensions of the stretched regions of the elastic members 8EL and 8ER, the non-adhesive regions 82L and 82R in the stretched regions tend to rise toward the skin side, making it easier to pinch the free ends 82LA and 82RA with the fingers. This allows the user to widen the gap between the non-adhesive regions 82L and 82R and the top sheet 7, and to insert an absorbent pad (not shown) between the non-adhesive regions 82L and 82R and the top sheet 7.

[0030] Fig. 5 is an enlarged view of the side sheets 8L, 8R in the cross-sectional view shown in Fig. 3. As described above, the side sheets 8L, 8R are laminated in the thickness direction. The elastic members 8EL, 8ER are sandwiched between the skin-facing side sheets 8LA, 8RA (an example of the "first water-impermeable sheet" in this application) and the non-skin-facing side sheets 8LB, 8RB (an example of the "second water-permeable sheet" in this application).

[0031] The side sheets 8LB, 8RB extend further toward the top sheet 7 than the elastic members 8EL, 8ER arranged on the rising lines 84L, 84R side. The side sheets 8LB, 8RB are not joined to the top sheet 7. In this manner, the side sheets 8LB, 8RB suppress the prevention of the discharged liquid discharged by the wearer from flowing into the discharged liquid inflow sections 15 provided in the region where the elastic members 8EL, 8ER on the rising lines 84L, 84R side and the side sheets 8LB, 8RB are bonded. Therefore, the discharged liquid of the wearer flows into the discharged liquid holding region 16 provided between the side sheets 8LA, 8RA and the side sheets 8LB, 8RB.

[0032] The diaper 1 is provided with a plurality of discharged liquid inflow sections 15 provided in the region where the elastic members 8EL, 8ER on the upright lines 84L, 84R sides and the side sheets 8LB, 8RB are bonded. The discharged liquid inflow sections 15 allow discharged liquid discharged by the wearer to flow into the discharged liquid retention region 16. By providing the discharged liquid inflow sections 15 in the stretchable regions of the elastic members 8EL, 8ER, the discharged liquid is collected by the elastic members 8EL, 8ER. This causes the discharged liquid inflow portion 15 to expand, facilitating the inflow of the discharged liquid. Note that the side sheets 8LA, 8RA and the side sheets 8LB, 8RB on the upright lines 84L, 84R side from the discharged liquid inflow portion 15 are not joined together.

[0033] The discharged liquid inlet section 15 may be an opening that opens like an entrance into which discharged liquid discharged by the wearer flows in, or it may be a weakly adhesive section in which the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the widthwise outer side is weaker than the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the widthwise inner side, or it may be a combination of these.

[0034] The openings are arranged spaced apart in the longitudinal direction of the side sheets 8L, 8R in the area where the side sheets 8L, 8R and the elastic members 8EL, 8ER on the upright lines 84L, 84R are bonded, and are areas where the side sheets 8LA, 8RA and the side sheets 8LB, 8RB are not bonded.

[0035] The weakly bonded portions are regions where the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the upright lines 84L, 84R side is weaker than the adhesive strength between the side sheets 8L, 8R and the elastic members 8EL, 8ER on the free ends 82LA, 82RA side, and where the weakly bonded portions can be peeled off. The weakly bonded portions may be peeled off during the putting on operation to allow the discharged liquid to easily flow into the discharged liquid holding region 16. It is not necessary to peel off the weakly bonded portions during the putting on operation, and the discharged liquid can flow into the discharged liquid holding region 16 by peeling off the weakly bonded portions due to the wearer's movement while the wearer is wearing the diaper.

[0036] The multiple discharged liquid inflow sections 15 are disposed spaced apart from one another in the longitudinal direction of the diaper 1. Since the multiple discharged liquid inflow sections 15 are spaced apart from one another, the top sheet 7 side is not entirely open, and discharged liquid can be retained in the spaces formed between the side sheets 8LA, 8RA and the side sheets 8LB, 8RB.

[0037] In addition, the side sheets 8LB, 8RB do not extend to the joining regions 81L, 81R. When the side sheets 8LB, 8RB do not extend to the joining regions 81L, 81R, the side sheets 8LB, 8RB are impermeable to water, and therefore the obstruction of the discharged liquid discharged from the wearer from flowing into the discharged liquid inflow portion 15 can be suppressed.

[0038] The diaper 1 includes an excreted liquid holding area 16 disposed between the side sheets 8LA, 8RA and the side sheets 8LB, 8RB, between the elastic members 8EL, 8ER on the side of the rising lines 84L, 84R and the elastic members 8EL, 8ER on the side of the free ends 82LA, 82RA, and extending in the longitudinal direction of the diaper 1. The excreted liquid holding area 16 may be formed by a non-adhesive portion where the side sheets 8LA, 8RA and the side sheets 8LB, 8RB are not bonded, or may be formed by releasing a temporary adhesive portion where the side sheets 8LA, 8RA and the side sheets 8LB, 8RB are temporarily bonded. Temporary adhesion refers to a state where the materials bonded to each other are bonded to such an extent that they can be peeled off without breaking each other. Since the temporary adhesive portion is formed by temporary adhesion, the excreted liquid holding area 16 can be easily formed by releasing the temporary adhesion during the wearing operation, and the excreted liquid can be held.

[0039] The three-dimensional gathers 3L, 3R close the gap between the top sheet 7 and the wearer's skin, preventing discharged liquid from leaking to the outside. However, when the wearer is in a lateral position, the top sheet 7 moves in the width direction, and the amount of discharged liquid that reaches the three-dimensional gathers 3L, 3R increases. Since the three-dimensional gathers 3L, 3R do not have an absorbent body 6, there is a risk that the discharged liquid may leak out depending on the amount of discharged liquid. In addition, the time that the discharged liquid contacts the wearer's skin increases, which may cause rough skin. Therefore, by providing the discharged liquid retention region 16, the discharged liquid that reaches the three-dimensional gathers 3L, 3R in the lateral position can be temporarily retained in the discharged liquid retention region 16.

[0040] The discharged liquid retention region 16 extends in the longitudinal direction of the diaper 1. The crotch region 1B of the diaper 1 corresponds to the urethral opening and anus of the wearer, and discharged liquid discharged by the wearer flows into the crotch region 1B in a concentrated manner. When the discharged liquid retention region 16 extends in the longitudinal direction of the diaper 1, the discharged liquid can be moved in the longitudinal direction of the diaper 1, and the amount of discharged liquid that can be retained can be increased. By increasing the amount of discharged liquid that can be retained, the discharged liquid can be sufficiently retained by the discharged liquid retention region 16, and leakage of the discharged liquid from the diaper 1 can be suppressed.

[0041] Non-adhesive regions 85L, 85R, 86L, ​​and 86R are disposed at both longitudinal ends of the discharged liquid holding region 16. When body pressure is applied to the discharged liquid holding region 16 due to lying on one's side, etc., there is a possibility that the discharged liquid may pass through the side sheets 8L and 8R and leak out of the diaper 1. For this reason, it is necessary to move the discharged liquid that has flowed into the discharged liquid holding region 16 to the absorbent body 6. By providing the non-adhesive regions 85L, 85R, 86L, ​​and 86R at both longitudinal ends of the discharged liquid holding region 16, the discharged liquid that has flowed into the discharged liquid holding region 16 can be moved from the non-adhesive regions 85L, 85R, 86L, ​​and 86R through the top sheet 7 to the absorbent body 6, and can be absorbed and held by the entire absorbent body 6. In particular, when changing posture from a lateral position to a supine position, the side sheets 8L, 8R rise vertically relative to the top sheet 7, and discharged liquid flows out from the non-adhesive areas 85L, 85R, 86L, ​​86R toward the top sheet 7, making it easier for the liquid to be absorbed by the absorbent body 6.

[0042] The absorbent body 6 extends on the non-skin surface of the top sheet 7 on both widthwise sides of the non-adhesive regions 85L, 85R, 86L, ​​and 86R. Therefore, the excreted liquid that flows into the excreted liquid holding region 16 flows out from the non-adhesive regions 85L, 85R, 86L, ​​and 86R toward the top sheet 7, and is absorbed and held by the absorbent body 6 provided on the non-skin surface of the top sheet 7 on both widthwise sides of the non-adhesive regions 85L, 85R, 86L, ​​and 86R.

[0043] The absorbent body 6 extends to the widthwise outer side of the standing lines 84L, 84R located on the widthwise outer side of the non-adhesive regions 85L, 85R, 86L, ​​86R. By extending the absorbent body 6 to the standing lines 84L, 84R located on the widthwise outer side of the non-adhesive regions 85L, 85R, 86L, ​​86R, when the side sheets 8L, 8R are in an upright state, discharged liquid flowing out from the non-adhesive regions 85L, 85R, 86L, ​​86R along the side sheets 8L, 8R is absorbed and held by the absorbent body 6 provided on the non-skin facing side of the standing lines 84L, 84R.

[0044] Thus, the diaper 1 according to this embodiment includes the discharged liquid holding region 16 and the discharged liquid inlet section 15. When the wearer is in a lateral position, the discharged liquid that has reached the three-dimensional gathers 3L, 3R flows into the discharged liquid inlet section 15 and is temporarily held by the discharged liquid holding region 16, thereby preventing the discharged liquid from leaking out of the diaper 1. In addition, until the discharged liquid that has reached the three-dimensional gathers 3L, 3R is absorbed by the absorbent body 6, the discharged liquid is prevented from contacting the wearer's skin and causing rough skin, thereby improving the wearing comfort.

[0045] The diaper 1 also has leakage barrier portions on the longitudinal outer sides of the non-adhesive regions 85L, 85R, 86L, ​​and 86R. The leakage barrier portions are retained in the discharged liquid retention region 16, and prevent discharged liquid that has migrated in the longitudinal direction of the diaper 1 from leaking out from the front body region 1F or the back body region 1R. The leakage barrier portions may be side sheets 8C or folded portions.

[0046] The side sheet 8C (an example of a "leak-proof sheet" as used herein) is disposed between the side sheets 8L, 8R and the top sheet 7. The side sheet 8C is a liquid-impermeable sheet provided on the rear body region 1R side of the top sheet 7. The side sheet 8C is double-layered by being folded back along a fold line along the width direction of the diaper 1, with a gap formed between the front side and the top sheet 7 and the rear side joined to the top sheet 7. An elastic member 8EC is disposed between the double side sheets 8C in a stretched state along the width direction. Elastic member 8EC The front sides of the side sheets 8C are pulled in the width direction by the stretching force of the elastic members 8EC and rise from the top sheet 7 towards the skin facing side.

[0047] The side sheet 8C has, on the skin-facing side of the top sheet 7, a bonded region 81C that is bonded to the top sheet 7 relatively outside when viewed in the longitudinal direction of the diaper 1, and a non-bonded region 82C that is not bonded to the top sheet 7 and is located inside the bonded region 81C in the longitudinal direction of the diaper. The side sheet 8C is bonded to the top sheet 7 at the bonded region 81C. A hot melt adhesive is applied to the top sheet 7 that is disposed on the non-skin-facing side of the side sheet 8C, and the side sheet 8C is laminated thereon to form the bonded region 81C.

[0048] In a non-bonded region 82C that is located longitudinally inward of the bonded region 81C, the side sheet 8C is not bonded to the top sheet 7. By having the bonded region 81C and the non-bonded region 82C, the rear side of the absorbent pad can be inserted between the top sheet 7 and the side sheet 8C, and the absorbent pad can be fixed in place.

[0049] In addition, when worn, the contraction of the elastic members 8EC causes the diaper 1 to contract in the width direction, and the skin-facing sides of the diaper 1 overlap each other, conforming the diaper 1 to the wearer's buttocks and improving comfort. In addition, when worn, the diaper 1 bends along the wearer, preventing any gaps from forming between the wearer and the diaper 1, thereby preventing urine leakage.

[0050] The fold portion (not shown) is formed by folding the front end portion of the diaper 1. The fold portion blocks discharged liquid that has flowed between the double side sheets 8L, 8R, and prevents leakage from the front end portion of the diaper 1. The fold portion may be formed by folding the non-skin facing sides of the diaper 1 so as to overlap each other, or may be formed by folding the skin facing sides so as to overlap each other. The fold portion may also be provided at the rear end portion. By forming a fold portion at the rear end portion, leakage from the rear end portion of the diaper 1 can be prevented.

[0051] The cover sheet 4 is provided with elastic members 4C that prevent the gap between the diaper 1 and the wearer's crotch from widening, and are bent inward in the longitudinal center of the diaper 1. The elastic members 4C are arranged in curved lines extending outward in the width direction at both longitudinal end sides. An appropriate number of elastic members 4C (three in this embodiment) are provided depending on the elasticity (stretching force) required for the design of the diaper 1.

[0052] Moreover, the elastic members 4C do not extend inward in the width direction behind the longitudinal center of the diaper 1. The area behind the longitudinal center of the diaper 1 is a buttocks-corresponding region (not shown) that corresponds to the buttocks of the wearer, and the elastic members 4C extend to avoid the buttocks-corresponding region. If wrinkles are formed in the top sheet 7 in the buttocks-corresponding region of the diaper 1, the unevenness caused by the wrinkles will come into contact with the wearer's skin, reducing the comfort of wearing the diaper 1. By extending the elastic members 4C to avoid the buttocks-corresponding region, the diaper 1 can prevent unnecessary wrinkles from forming in the buttocks-corresponding region. This improves the comfort of wearing the diaper 1 and eliminates the need to smooth out wrinkles in the buttocks-corresponding region when wearing the diaper 1. Furthermore, the diaper 1 prevents unwanted wrinkles from being formed in the area corresponding to the buttocks, thereby preventing bedsores caused by wrinkles coming into contact with the skin.

[0053] The elastic member 9ER for forming the waist gather 3W is provided between the double side sheets 8C at a position further toward the rear side than the end of the absorbent body 6. The elastic member 9ER is provided with its longitudinal direction, which is the stretch direction, oriented in the left-right direction of the diaper 1. When the tapes 2L1, 2L2, 2R1, 2R2 provided on both the left and right sides of the elastic member 9ER are attached to the front patch 2F on the abdominal side of the wearer, the elastic member 9ER exerts a stretching force. The elastic member 9ER fits the diaper 1 closely to the wearer, thereby preventing the formation of a gap between the diaper 1 and the waist circumference of the wearer. The elastic member 9ER may be provided between the top sheet 7 and the back sheet 5.

[0054] In addition, the diaper 1 has elastic members 4SL, 4SR (an example of the "second elastic member" in the present application) for forming the leg gathers 3AL, 3AR described above, which are provided between the cover sheet 4 and the back sheet 5 so as to stretch in the longitudinal direction of the diaper 1. The elastic members 4SL, 4SR are provided in an appropriate number (three in this embodiment) determined according to the elastic force (stretching force) required in the design of the diaper 1. As shown in FIG. 4, the leg gathers 3AL, 3AR are arranged at both ends in the width direction of the crotch region 1B, including the leg surrounding portions 10L, 10R, which are portions that follow the circumference of the legs of the wearer. The leg surrounding portions 10L, 10R are arranged at both ends in the width direction of the crotch region 1B. The elastic members 4SL, 4SR are bonded to the leg surrounding portions 10L, 10R in a stretched state so as to extend in the longitudinal direction, causing the leg surrounding portions 10L, 10R to stretch in the longitudinal direction. The stretchable regions of the elastic members 4SL, 4SR become the leg gathers 3AL, 3AR.

[0055] The leg gathers 3AL, 3AR are formed by laminating the side sheets 8L, 8R, the back sheet 5, and the cover sheet 4 on both the left and right sides of the diaper 1. Therefore, the widthwise outer ends of the leg gathers 3AL, 3AR are formed by laminating the side sheets 8L, 8R, the back sheet 5, and the cover sheet 4. The diaper 1 according to this embodiment has a constriction in the crotch region 1B, so that the crotch region 1B needs to be cut in a curved shape during manufacturing. When cutting in a curved shape, the diaper 1 is likely to become twisted, but by bonding multiple sheets and increasing the rigidity, the twisting of the diaper 1 during cutting can be suppressed. It is sufficient that the widthwise outer ends of the leg gathers 3AL, 3AR are laminated with the side sheets 8L, 8R and at least one of the back sheet 5 and the cover sheet 4.

[0056] <Modification> FIG. 6 is a plan view of a diaper 1 according to a modified example. The discharged liquid holding region 16 and the discharged liquid inlet 15 are arranged in the same manner as in the embodiment, and therefore are omitted in FIG. 6. The diaper 1 according to the modified example includes a folded portion 11 extending in the longitudinal direction of the diaper 1, outboard of the elastic members 4SL and 4SR in the width direction. The folded portion 11 is a fold line along which the diaper 1 is folded so that the non-skin-facing side outboard of the folded portion 11 in the width direction overlaps with the non-skin-facing side of the diaper 1. When the diaper 1 is worn, the widthwise outer end of the diaper 1 is folded toward the non-skin-facing side by the folded portion 11 in the crotch region 1B. This prevents the widthwise outer end of the diaper 1 from contacting the wearer's skin or from digging into the wearer's skin.

[0057] In addition, the leg gathers 3AL, 3AR have the side sheets 8L, 8R extending outward in the width direction from the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR. The diaper 1 is usually stretched in the longitudinal direction when worn. When the diaper 1 is stretched in the longitudinal direction, both ends of the elastic members 4SL, 4SR expand and contract, and the widthwise outer side of the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR is less rigid than the inner side, and is therefore more likely to bend. Therefore, the diaper 1 is more likely to bend along the folded portion 11 so that the non-skin-facing side on the widthwise outer side of the folded portion 11 overlaps with the non-skin-facing side of the diaper 1. The folded portion 11 is preferably located on the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR, or within a range of 10 mm outward in the width direction. By positioning the folding portion 11 on the imaginary straight line 14 connecting both longitudinal ends of the elastic members 4SL, 4SR, or within a range of 10 mm outward in the width direction, the elastic force of the elastic members 4SL, 4SR is easily transmitted to the folding portion 11, and a bend is easily formed along the folding portion 11.

[0058] The distance between the elastic members 4SL, 4SR and the outer ends of the diaper 1 in the width direction is preferably 2 It is preferably 0 mm or more, and more preferably 35 mm or more. By making the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 20 mm or more, it is possible to prevent the folds from not being formed due to manufacturing errors such as misalignment during manufacture of the diaper 1. By making the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 35 mm or more, it is easier to maintain the widthwise outer ends of the diaper 1 folded by the folding portions 11.

[0059] In addition, in the central region of the diaper 1 divided into three equal parts in the longitudinal direction, the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is shorter at the front side than at the rear side. The crotch region 1B of the diaper 1 and its vicinity are sandwiched between the legs of the wearer when worn, so it is preferable that the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is short. However, if the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is short, it is difficult to form a fold at the folding portion 11. On the other hand, the side sheets 8L, 8R can be widened in width so as to fit the wearer's skin at the rear body region 1R side, so that it is easy to fold at the folding portion 11. Therefore, in the central region of the diaper 1 divided into three equal parts in the longitudinal direction, the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the side sheets 8L, 8R is longer at the rear side, and the fold at the folding portion 11 is formed. The bending force that creates the fold on the rear body region 1R side is then transmitted to the crotch region 1B side, and the front side is also folded along the fold 11, so that the entire central region of the diaper 1, which is divided into three equal parts in the longitudinal direction, is folded along the fold 11.

[0060] Furthermore, both longitudinal ends of the elastic members 4SL, 4SR extend in the direction in which the front patch 2F or tapes 2L1, 2L2, 2R1, 2R2 are stretched during wearing, and the front patch 2F or tapes 2L1, 2L2, 2R1, 2R2 are positioned on the extension line of the extending direction of the elastic members 4SL, 4SR.

[0061] The elastic members 4SL, 4SR may overlap the front patch 2F or the tapes 2L1, 2L2, 2R1, 2R2, and the distance between the elastic members 4SL, 4SR and the front patch 2F and between the elastic members 4SL, 4SR and the tapes 2L1, 2L2, 2R1, 2R2 is 40 mm or less. By positioning the elastic members 4SL, 4SR and the front patch 2F and between the elastic members 4SL, 4SR and the tapes 2L1, 2L2, 2R1, 2R2 as described above, the force of pinching and stretching the front patch 2F or the tapes 2L1, 2L2, 2R1, 2R2 during the wearing operation is transmitted to the elastic members 4SL, 4SR. Therefore, the elastic members 4SL, 4SR expand and contract, and are easily folded along the folding portion 11.

[0062] As described above, the widthwise outer end portions of the side sheets 8L and 8R are cut in a state where they are overlapped with the cover sheet 4 and the back sheet 5 in the thickness direction. Therefore, the cut areas of the widthwise ends of the side sheets 8L and 8R have sharp shapes, and when worn, there is a risk of the comfort of wearing being reduced by digging into or abutting the wearer's skin. In particular, in the diaper 1 having a constriction in the crotch region 1B, such as the diaper 1 in this embodiment, the widthwise outer end portions of the diaper 1 are cut in a curved shape in the crotch region 1B. In this case, in order to increase the cutting efficiency, it is preferable to increase the rigidity of the cut portion, and the rigidity is increased by bonding the sheets. Therefore, there is a high possibility that the widthwise outer end portions of the side sheets 8L and 8R having increased rigidity will dig into or abut the wearer's skin, thereby reducing the comfort of wearing.

[0063] On the other hand, the diaper 1 according to this modification has a fold 11 located within a range of 10 mm outward in the width direction from an imaginary straight line 14 connecting both longitudinal ends of the stretchable regions of the elastic members 4SL, 4SR. The diaper 1 is folded in the crotch region 1B along the fold 11 such that the non-skin-facing side of the widthwise outer end of the diaper 1 overlaps the non-skin-facing side of the diaper 1, thereby preventing the diaper 1 from contacting or digging into the wearer's skin and improving the fit.

[0064] Fig. 7 is a plan view of leg gathers 3AL folded along folding portion 11 as viewed from the cover sheet 4 side. For ease of explanation, some components are omitted from Fig. 7. Since the dimensions of leg gathers 3AR are the same as those of leg gathers 3AL, the following explanation focuses on leg gathers 3AL. The outer widthwise end of leg gathers 3AL is folded by folding portion 11 toward the non-skin facing side.

[0065] The folded portion 11 is located within a range of 10 mm widthwise outward from an imaginary straight line 14 connecting both longitudinal ends of the stretchable region of the elastic member 4SL, and extends in the longitudinal direction. The folded portion 11 is formed by folding the non-skin-facing side (cover sheet 4) of the widthwise outer end of the diaper 1 in the crotch region 1B so that it overlaps the cover sheet 4, thereby preventing the widthwise outer end of the diaper 1 from contacting the wearer and digging into the wearer. The folded portion 11 is formed when the diaper 1 is packed.

[0066] Fig. 8 shows an example of folding of the diaper 1 according to the modified example in a distributed state. The diaper 1 is folded in a product shipping state and a distributed state before being worn. More specifically, the diaper 1 in a distributed state is folded from the non-skin-facing side to the skin-facing side along folding lines 13L, 13R extending in the longitudinal direction of the diaper 1 at its outer widthwise side as shown in Fig. 8(A). Thereafter, as shown in Fig. 8(B), the diaper 1 is folded by the folding portion 11 so that the non-skin-facing sides overlap each other. Thereafter, the diaper 1 is packed in a folded state in the longitudinal direction.

[0067] Here, in the crotch region 1B of the diaper 1, if the distance between the elastic members 4SL, 4SR and the widthwise outer ends of the diaper 1 is 20 mm or more at the narrowest point, it is possible to prevent the fold from not being formed due to manufacturing errors such as misalignment, even when the diaper 1 is folded along the fold 11 as shown in Figure 8 (B).

[0068] <Other embodiments> Although the present embodiment has been described above, the contents of the present invention are not limited to the above embodiment. In the above embodiment, a tape-type disposable diaper has been described as an example, but the present invention is not limited to this, and the present invention can also be applied to absorbent articles such as pants-type disposable diapers.

[0069] In this embodiment, the elastic members 4SL, 4SR are curved inward in the width direction of the diaper 1, but the elastic members 4SL, 4SR do not have to be curved inward in the width direction and may be straight or curved outward in the width direction.

[0070] In the above embodiment, the top sheet 7 forming the skin-facing side and the side sheets 8L, 8R are separate sheets, but this is not limited to the above. For example, the side sheets 8L, 8R may be formed by the top sheet 7 by folding back the end sides of the top sheet 7 in the width direction.

[0071] In this embodiment, the first water-impermeable sheet and the second water-impermeable sheet are the same sheet in the side sheets 8L, 8R, but the first water-impermeable sheet and the second water-impermeable sheet may be separate sheets. In addition, when the first water-impermeable sheet and the second water-impermeable sheet are separate sheets, the second water-impermeable sheet does not need to extend to the end of the non-jointed region 82L, 82R. In this case, the second water-impermeable sheet does not reach the standing lines 84L, 84R. If the second water-impermeable sheet reaches the standing lines 84L, 84R, there is a risk that the second water-impermeable sheet will suppress the flow of the discharged liquid discharged by the wearer into the discharged liquid inflow section 15. Note that the second water-impermeable sheet may not reach the joint regions 81L, 81R. If the second water-permeable sheet does not reach the joint regions 81L, 81R, the three-dimensional gathers 3L, 3R are formed by the first water-impermeable sheet, and leakage of the discharged liquid can be suppressed. In addition, a waste liquid inlet portion 15 for inflowing waste liquid is formed on the joining regions 81L and 81R side, and the waste liquid is discharged to a waste liquid holding region 16. This can facilitate the inflow of liquid.

[0072] The embodiments and modifications thereof disclosed above can be combined with each other. [Explanation of symbols]

[0073] 1. Diapers 1B...Inseam area 1F: Front body area 1R: Back body area 2F: Front patch 2L1, 2L2, 2R1, 2R2... Tape 3AL, 3AR Leg Gathers 3L, 3R: 3D gathers 3W: Gathered waist 4. Cover sheet 4KL, 4KR... Constriction 4C, 4SL, 4SR, 8EL, 8ER, 8EC, 9ER Elastic material 5. Back sheet 6. Absorber 6C··Absorbent core 6A··Upper layer absorbent mat 6B··Lower layer absorbent mat 6W··Core wrap sheet 6H··Slit 7. Top sheet 8L, 8LA, 8LB, 8R, 8RA, 8RB, 8C··Side seats 81L, 81R, 81C...Join area 82L, 82R, 82C...Non-bonded area 82LA,82RA·Free end 84L, 84R, 84C...Standing line 85L,85R,86L,86R...Non-adhesive area 90L, 90R, 91L, 91R · Fixed part 10L, 10R: Leg area 11 Folding section 13L, 13R... Folding lines 14 Imaginary line 15...Effluent inlet 16...Effluent retention area

Claims

1. A length along a longitudinal direction corresponding to the front-rear direction of the wearer, and a length along a width direction perpendicular to the longitudinal direction, an absorbent body that absorbs liquid discharged by the wearer; A water-permeable sheet disposed on the skin side of the absorbent body; a pair of first non-water-permeable sheets in the width direction, each of which extends in the longitudinal direction, has its edge in the width direction joined to the water-permeable sheet, and has an elastic member bonded to the opposite side of the region in the width direction to which the water-permeable sheet is joined so as to extend in the longitudinal direction in a stretched state; and a fixing portion connected to the water-permeable sheet at the end in the longitudinal direction; a second water-impermeable sheet that is joined to the first water-impermeable sheet with the elastic member sandwiched therebetween in a region where the first water-impermeable sheet is contracted by the elastic member, extends outward in the width direction beyond the elastic member, and is not joined to the water-permeable sheet; a discharged liquid inlet portion for injecting the discharged liquid into an area where the second non-permeable sheet and the elastic member are bonded; a discharged liquid holding region extending inward in the width direction from the elastic member, forming a space between the first water-impermeable sheet and the second water-impermeable sheet, and holding the discharged liquid that has flowed in from the discharged liquid inlet portion; Equipped with Absorbent articles.

2. The discharge liquid inlet portion is a weakly bonded portion in which the adhesive strength between the second non-water-permeable sheet and the elastic member on the outer side in the width direction is weaker than the adhesive strength between the second non-water-permeable sheet and the elastic member on the inner side in the width direction. The absorbent article of claim 1.

3. The discharge liquid inlet portion is a non-adhesive portion that is arranged at a distance in the longitudinal direction and is not adhered to the second non-water-permeable sheet. The absorbent article of claim 1.

4. The waste liquid holding area extends in the longitudinal direction. An absorbent article according to any one of claims 1 to 3.

5. A space formed between the first water-impermeable sheet and the second water-impermeable sheet includes a non-joined portion where the water-permeable sheet side is not joined. An absorbent article according to any one of claims 1 to 3.

6. The non-jointed portion is disposed on the outer side in the longitudinal direction. The absorbent article of claim 5.

7. The absorbent body is disposed on the non-skin-facing side of the water-permeable sheet that is disposed in the width direction of the non-jointed portion. The absorbent article of claim 5.

8. The absorbent body is disposed on the non-skin-facing side of the joined region of the second water-impermeable sheet and the first water-impermeable sheet located in the width direction of the non-jointed portion. The absorbent article of claim 5.

9. a leakage prevention portion for preventing leakage of liquid is provided on the outer side of the non-jointed portion in the longitudinal direction; The absorbent article of claim 5.

10. The leakproof portion is formed by bending the absorbent article.

10. The absorbent article of claim 9.

11. The leakproof portion is formed by a leakproof sheet provided on the skin side of the absorbent body.

10. The absorbent article of claim 9.

12. a folding portion that is disposed on the outer side of the elastic member in the width direction, extends in the longitudinal direction on the outer side of a region that is contracted by a second elastic member attached to the first non-water-permeable sheet in a stretched state in the longitudinal direction, and folds the outer end portions in the width direction so that the non-skin-facing sides are in contact with each other; An absorbent article according to any one of claims 1 to 3.

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