CN218552572U - Absorbent article - Google Patents

Abstract

The absorptive article (1) is provided with an absorptive body (6), a liquid-permeable skin surface side sheet (7) disposed on the skin surface side of the absorptive body, and side sheets (8L, 8R) for forming three-dimensional gathers, which are liquid-impermeable and are disposed outside the center in the width direction. The side sheet has elastic regions (10L, 10R), free end portions (11L, 11R), base end portions (12L, 12R), fixed end portions (13L, 13R), and non-fixed end portions (14L, 14R). An elastic member is disposed in the elastic region. The free end portion is an end portion on a side rising toward the skin surface side. The base end portion is joined to the skin surface side sheet on the width direction end portion side. The fixing portion is joined to the skin side sheet. The non-fixed end portion is disposed on the inner side in the width direction than the fixed end portion.

Description

Absorbent article

Technical Field

The utility model relates to an absorbent article.

Background

An absorbent article that absorbs liquid such as urine and body fluid is known (for example, japanese patent laid-open publication No. 2019-216796).

SUMMERY OF THE UTILITY MODEL

Generally, in an absorbent article, three-dimensional gathers are provided in order to suppress leakage of liquid discharged by a wearer in the width direction. The three-dimensional gathers suppress liquid leakage by raising a sheet having liquid impermeability toward the skin surface side by the elastic force of an elastic member, so that no gap is formed between the skin surface of the wearer and the absorbent article. However, the three-dimensional gathers may not rise toward the skin surface side at the longitudinal end of the absorbent article where the elastic member is not disposed, although they rise toward the skin surface side in the region where the elastic member is disposed. In an absorbent article, there is a problem that liquid may leak from a portion where the three-dimensional gathers do not rise toward the skin surface side.

An object of the utility model is to provide an absorbent article that can restrain the leakage of liquid.

In order to solve the above problem, the present invention provides a side sheet for forming a three-dimensional gather, which is provided with a fixed end portion and a non-fixed end portion.

The present invention provides an absorbent article according to claim 1. The absorbent article has a length in a longitudinal direction and a width in a width direction orthogonal to the longitudinal direction, and is worn toward the crotch of a wearer. The absorbent article includes an absorbent body, a liquid-permeable skin-side sheet disposed on the skin surface side of the absorbent body, and a sheet having liquid impermeability for forming three-dimensional gathers and disposed outside the center in the width direction. The side sheet has an elastic region, a free end portion, a proximal end portion, a fixed end portion, and a non-fixed end portion. An elastic member that expands and contracts in the longitudinal direction is disposed in the elastic region. The free end portion is an end portion on a side rising toward the skin surface side by the elastic member. The base end portion is joined to the skin surface side sheet at an end portion side in the width direction with respect to the elastic region. The fixed end portion is disposed continuously from the base end portion on the longitudinal end portion side, and is joined to the skin surface side sheet. The non-fixed end portion is disposed on the inner side in the width direction than the fixed end portion, and is disposed so as to be continuous from the elastic region on the end portion side in the longitudinal direction.

In the absorbent article, the lengths of the elastic region and the non-fixed end portion in the width direction may be the same.

The absorbent article may further include a pocket sheet having liquid impermeability, which is disposed on the skin surface side of the side sheet on the end portion side in the longitudinal direction. The pocket sheet may be joined to the side sheet on the end portion side in the width direction, may be joined to the skin surface side sheet on the outer side in the longitudinal direction, and may have a pocket portion opened on the inner side in the longitudinal direction.

The absorbent article may be provided with a front body region located on the abdomen side, a crotch region located in the crotch, and a back body region located on the back side of the wearer in this order in the longitudinal direction. The end portion side in the longitudinal direction may be an end portion on a back body region side, and the pocket portion may overlap the non-fixed end portion.

The absorbent article may further include a plurality of 1 st elastic members joined to the pocket sheet in an extended state so as to stretch and contract in the width direction in a region overlapping with the pocket portion, and arranged so as to be separated from each other in the longitudinal direction. In the 1 st elastic members adjacent to each other, there may be a group of the 1 st elastic members in which a portion where the 1 st elastic member arranged on the inner side in the longitudinal direction is joined has a lower contraction rate than a portion where the 1 st elastic member arranged on the outer side in the longitudinal direction is joined.

In the absorbent article, the group of the 1 st elastic member may be composed of the 1 st elastic member disposed on the outermost side in the longitudinal direction and the 1 st elastic member disposed on the inner side in the longitudinal direction than the 1 st elastic member.

In the absorbent article, a portion where the 1 st elastic member arranged on the outer side in the longitudinal direction is joined may have a larger contraction rate than a portion where the 1 st elastic member arranged at a position closest to an opening of the pocket portion is joined.

The absorbent article may further include a plurality of 2 nd elastic members joined to the pocket sheet in an extended state so as to stretch in the width direction in a region where the pocket sheet is joined to the skin surface side sheet, and arranged so as to be separated from each other in the longitudinal direction. The expansion/contraction ratio of each of the plurality of 2 nd elastic members may be the same as the expansion/contraction ratio of the 1 st elastic member disposed on the outermost side in the longitudinal direction.

The absorbent article may further include a non-skin side sheet having liquid impermeability, which is formed longer than the absorbent body in the longitudinal direction and is disposed on the non-skin surface side of the absorbent body. The skin side sheet may be longer than the absorbent body in the longitudinal direction. The pocket sheet and the skin-side sheet may be joined together, and the skin-side sheet and the non-skin-side sheet may be joined together, at the outer side in the longitudinal direction than an end of the absorbent body in the longitudinal direction.

In the absorbent article, the skin-side sheet may be folded toward the non-skin surface side at an end of the absorber in the longitudinal direction.

The absorbent article may further include a 1 st elastic member joined to the pocket sheet in an extended state so as to stretch in the width direction. The pocket sheet and the 1 st elastic member may extend beyond the absorbent body on both sides in the width direction, and an end of the absorbent body may be disposed inside an end of the skin-side sheet and the pocket sheet in the longitudinal direction. In the arrangement region of the pocket sheet, at least a part of an outer side in the width direction from a virtual extension line passing through an end of the absorbent body in the width direction and extending in the longitudinal direction may have a larger shrinkage rate than a part of the inner side in the width direction from the virtual extension line.

The utility model discloses a 2 nd scheme is absorbent article. The absorbent article has a length in a longitudinal direction and a width in a width direction orthogonal to the longitudinal direction, and is worn toward the crotch of a wearer. The absorbent article includes an absorbent body, a liquid-permeable skin-side sheet disposed on the skin surface side of the absorbent body, a sheet for forming three-dimensional gathers, which is liquid-impermeable and disposed further outward than the center in the width direction, and a pocket sheet having liquid-impermeability disposed on the non-skin surface side of the sheet on the end side in the longitudinal direction. The pocket sheet is joined to the side sheet at an end portion side in the width direction, is joined to the skin side sheet at an outer side in the longitudinal direction, and has a pocket portion with an opening at an inner side in the longitudinal direction. The side sheet has an elastic region, a free end portion, a proximal end portion, a fixed end portion, and a non-fixed end portion. A plurality of elastic members that expand and contract in the longitudinal direction are arranged in the elastic region. The free end is an end on a side raised toward the skin surface side by the elastic member. The base end portion is joined to the skin surface side sheet on the end portion side in the width direction with respect to the elastic region. The fixed end portion is disposed so as to be continuous on an imaginary extension line of the free end portion on the end portion side in the longitudinal direction, and a widthwise central portion thereof is joined to the pocket sheet. The non-fixed end portion is disposed on the inner side in the width direction of the fixed end portion and on the outer side in the width direction.

In the absorbent article, the non-fixed end portion may be provided on an imaginary extension line of the longitudinal direction of the elastic member disposed in the elastic region.

In the absorbent article, the side sheet may have an inner fold portion and an outer fold portion. The folded-in portion may extend from the base end portion toward the elastic region and toward the front of an imaginary extension region of the elastic region and toward the inside in the width direction. The outer fold portion may be continuous with an inner end portion of the inner fold portion in the width direction, and may extend so as to be folded outward in the width direction in an imaginary extension region of the elastic region and the elastic region. An outer portion in the width direction of the inner fold portion may be joined to the pocket sheet from the outer side in the longitudinal direction of the pocket sheet to a vicinity of an end portion on the inner side in the longitudinal direction.

In the absorbent article, the fixed end portion may be provided on the end portion side in the longitudinal direction of the pocket sheet, and the folded-out portion may be joined to the folded-in portion at the fixed end portion.

According to the utility model discloses, can restrain the leakage of liquid.

Drawings

The features, advantages and technical and industrial significance of the exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals represent like elements, and wherein:

fig. 1 is a perspective view of a diaper of embodiment 1.

Fig. 2 is an exploded perspective view of the diaper of embodiment 1.

Fig. 3 is a sectional view of the diaper of embodiment 1.

Fig. 4 is a plan view of the diaper of embodiment 1 as viewed from the skin surface side.

Fig. 5 is a plan view of the diaper of embodiment 2 as viewed from the skin surface side.

Fig. 6 is a sectional view of the diaper of embodiment 2.

Fig. 7 is a plan view of the diaper of embodiment 3 as viewed from the skin surface side.

Fig. 8A is a cross-sectional view of the diaper in the crotch region according to embodiment 3.

Fig. 8B is a cross-sectional view of the diaper in the vicinity of the opening of the pocket portion in embodiment 3.

Fig. 8C is a cross-sectional view of the diaper in the vicinity of the longitudinal end of the back body region of embodiment 3.

Detailed Description

Hereinafter, a diaper according to an embodiment of the present invention will be described with reference to the drawings. The configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

< embodiment 1>

In the present embodiment, a tape-type disposable diaper (which is an example of an "absorbent article" referred to in the present application and will be hereinafter simply referred to as "diaper") is configured such that a direction connecting a front body disposed to face an abdomen of a wearer and a rear body disposed to face a back is defined as a longitudinal direction. The crotch portion disposed in the crotch (disposed opposite to the crotch) of the wearer is located between the front body (one side in the longitudinal direction) and the rear body (the other side in the longitudinal direction) (the center in the longitudinal direction). In a state where the diaper is worn on a wearer (hereinafter, simply referred to as a "worn state"), a side facing the skin of the wearer (an inner side in the worn state) is referred to as a skin surface side, and an opposite side to the skin surface side (an outer side in the worn state) is referred to as a non-skin surface side. The direction connecting the skin surface side and the non-skin surface side is defined as the thickness direction, and the direction perpendicular to both the longitudinal direction and the thickness direction is defined as the width direction. In addition, the thickness direction is regarded as a planar view. The diaper 1 has a length in the longitudinal direction and a width in the width direction orthogonal to the longitudinal direction, and is worn toward the crotch of the wearer.

Fig. 1 is a perspective view of a diaper of the present embodiment. The diaper 1 has a crotch region 1B corresponding to a crotch covering a wearer's pudendum in a worn state, a front region 1F corresponding to a wearer's front body located on a front side of the crotch region 1B, and a rear region 1R corresponding to a wearer's rear body located on a rear side of the crotch region 1B. The rear region 1R is provided at both left and right edges thereof with tapes 2L and 2R that can be attached to the front patch 2F provided on the non-skin surface side (non-wearer side) of the front region 1F. When the tapes 2L and 2R are attached to the front patch 2F in a state where the front body region 1F is disposed on the abdominal side of the wearer and the rear body region 1R is disposed on the back side of the wearer, the diaper 1 is fixed to the body of the wearer in a state of surrounding the abdominal circumference and the thighs of the wearer. Since the diaper 1 is fixed to the body of the wearer in this manner, the wearer can walk while standing with the diaper 1 worn.

An absorbent body capable of absorbing and retaining liquid is disposed in the diaper 1 mainly in the vicinity of the crotch region 1B. In the diaper 1, in order to suppress formation of a gap which becomes an outflow path of liquid between the diaper 1 and the skin of the wearer, the leg gathers 3AL, 3AR are provided at a portion surrounding the leg hole (thigh) of the wearer, the three-dimensional gathers 3BL, 3BR are provided at the inner side in the width direction of the diaper 1 than the leg gathers 3AL, 3AR, and the waist gather 3R is provided at a portion surrounding the abdominal hole of the wearer. The leg gathers 3AL and 3AR, the three-dimensional gathers 3BL and 3BR, and the waist gather 3R are brought into close contact with the skin of the wearer by the elastic force of the elastic member. Thus, the liquid discharged from the pudendal region of the wearer is absorbed by the absorbent body of the diaper 1 without leaking from the diaper 1. Further, as the elastic member, linear or strip-shaped rubber or the like can be appropriately selected.

Fig. 2 is an exploded perspective view of the diaper 1. Fig. 3 is a cross-sectional view of the diaper 1 in a non-worn state, the cross-section being taken along the width direction at the center in the longitudinal direction. The diaper 1 has a cover sheet 4 forming the outer surface. The cover sheet 4 is a sheet-like member having a substantially rectangular appearance and provided with narrowed portions 4KL and 4KR at positions corresponding to the long sides, and forms the exterior surface of the diaper 1. The narrowed portions 4KL and 4KR are provided at the positions of the thighs of the wearer. The cover sheet 4 is provided for reinforcement of the back sheet 5 described later and improvement of texture, and for example, a nonwoven fabric made of a liquid impermeable thermoplastic resin can be used as a material thereof in order to suppress leakage of excrement. Examples of the liquid impermeable thermoplastic resin include Polyethylene (PE), polypropylene (PP), and the like. The cover sheet 4 is not limited to a single-layer structure, and may have a multilayer structure including an inner cover sheet and an outer cover sheet.

The diaper 1 further includes a back sheet 5 (an example of a "non-skin-side sheet" in the present application), an absorbent body 6, and a top sheet 7 (an example of a "skin-side sheet" in the present application) laminated in this order on the skin surface side (wearer side) of the cover sheet 4. The back sheet 5, the absorbent body 6, and the top sheet 7 are sheet-like members having a substantially rectangular appearance, and are sequentially stacked on the cover sheet 4 in a state where the longitudinal direction coincides with the longitudinal direction of the cover sheet 4. The back sheet 5 is a sheet made of a liquid impermeable thermoplastic resin for suppressing leakage of excrement, similarly to the cover sheet 4. The backsheet 5 is preferably made of a material having moisture permeability in order to suppress hot flashes in a worn state. The top sheet 7 is a sheet-like member disposed on the skin surface side of the wearer so as to cover the water absorption surface of the absorbent body 6. The topsheet 7 has liquid permeability in a part or all thereof. Therefore, in a state where the diaper 1 is worn, liquid excreted from the wearer enters the absorber 6 through the top sheet 7 that can contact the skin of the wearer, and is absorbed there. For example, woven cloth, nonwoven cloth, and porous film can be used as the material of the top sheet 7. The topsheet 7 may also have hydrophilic properties.

The backsheet 5, the absorbent member 6, and the topsheet 7 extend from the front body region 1F to the back body region 1R. Thus, when the private parts of the wearer are covered with the cover sheet 4 in which the back sheet 5, the absorbent body 6, and the top sheet 7 are laminated, both longitudinal ends of the back sheet 5, the absorbent body 6, and the top sheet 7 are positioned on the ventral side and the dorsal side of the wearer. That is, the pudendal region of the wearer is covered with the absorbent body 6 from the abdomen side to the back side of the wearer. Therefore, regardless of whether the wearer discharges the liquid to the outside of the body in the posture in which the abdomen is directed downward or the posture in which the back is directed downward, the discharged liquid contacts the absorbent body 6 via the top sheet 7.

In the diaper 1, the elastic members 4SL and 4SR for forming the above-described leg gathers 3AL and 3AR are provided between the cover sheet 4 and the back sheet 5 so as to stretch and contract in the longitudinal direction of the diaper 1. The elastic members 4SL and 4SR are provided in an appropriate number (3 in the present embodiment) determined in accordance with an elastic force (contractive force) required for the design of the diaper 1. As shown in fig. 4 described later, the leg gathers 3AL, 3AR are disposed so as to include leg hole regions, which are portions of the diaper 1 where the thighs of the wearer are located, at both widthwise end portions of the crotch region 1B.

The diaper 1 further includes elongated belt- like side sheets 8L and 8R. The side sheets 8L and 8R are sheets for forming the three-dimensional gathers 3BL and 3BR provided in the long side portions of the top sheet 7, and are sheets having liquid impermeability (water repellency). The side sheets 8L and 8R are disposed outward of the center of the diaper 1 in the width direction. In the side sheets 8L and 8R, similarly to the cover sheet 4, narrowed portions 8KL and 8KR are provided at the portions where the thighs of the wearer are located. In the side sheets 8L and 8R, elastic members 8EL and 8ER for forming the three-dimensional gathers 3BL and 3BR are arranged along the longitudinal direction. When the diaper 1 is in a state of being worn, that is, when the diaper 1 is in a U-shape in side view, the side sheets 8L and 8R are pulled up in the longitudinal direction by the contraction force of the elastic members 8EL and 8ER and rise from the top sheet 7, and become the three-dimensional gathers 3BL and 3BR which prevent the liquid from flowing out. Thus, the three-dimensional gathers 3BL, 3BR are formed three-dimensionally from the top sheet 7 toward the skin surface side (wearer side).

In addition, in the cover sheet 4, the elastic member 4C that prevents a gap from being formed between the diaper 1 and the abdominal circumference of the wearer is provided along the longitudinal direction of the diaper 1 on the inner side in the width direction of the diaper 1 than the elastic members 4SL, 4 SR. The elastic member 4C is provided in accordance with an elastic force (contractive force) required in design in the diaper 1 or the like.

Further, an elastic member 9ER for forming the waist gather 3R described above is provided between the backsheet 5 and the top sheet 7 at a position on the back side of the end of the absorbent body 6. The elastic member 9ER is provided between the back sheet 5 and the top sheet 7 in such a direction that the longitudinal direction in the stretching direction is the width direction (left-right direction) of the diaper 1. Thus, when the belts 2L and 2R 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 contractive force to bring the diaper 1 into close contact with the wearer, thereby preventing a gap from being formed between the diaper 1 and the abdominal circumference of the wearer.

The Absorbent body 6 has a structure in which a particulate Absorbent resin such as SAP (Super Absorbent Polymer) which is a hydrophilic Polymer having a crosslinked structure and capable of absorbing and retaining water is retained in gaps between cellulose fibers such as pulp fibers, rayon fibers, or cotton fibers, or fibers obtained by hydrophilizing synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate. Thus, in the absorbent body 6, the volume change of the absorbent resin before and after the absorption of the liquid is basically performed in the short fibers holding the absorbent resin in the gaps. Therefore, if the entire absorbent body 6 is viewed in overhead, the thickness of the absorbent body 6 that has absorbed liquid does not have a higher expansion rate than the absorbent resin itself.

The SAP particles of the present embodiment are obtained by granulating a resin composition containing an SAP. The "resin composition containing an SAP" referred to herein is a concept including both a composition composed of only an SAP and a composition containing an SAP as a main component and other substances therein to such an extent that the water absorption is not adversely affected. Examples of the "other substances" include additives (such as a surface modifier added for the purpose of hydrophobizing the particle surface), unreacted monomers remaining during synthesis of the SAP, and the like.

Fig. 4 is a plan view of the diaper 1 in an extended state as viewed from the skin surface side. In fig. 4, the elastic members 4C, 4SL, and 4SR are not illustrated. As shown in fig. 4, the side sheets 8L, 8R for forming the three-dimensional gathers 3BL, 3BR have elastic regions 10L, 10R in which elastic members 8EL, 8ER that expand and contract in the longitudinal direction of the diaper 1 are arranged, and free end portions 11L, 11R that are end portions on the side that rises toward the skin surface side by the elastic members 8EL, 8ER. The elastic regions 10L and 10R are regions from the elastic members 8EL and 8ER to base end portions 12L and 12R described later. The longitudinal direction of the elastic regions 10L, 10R and the free end portions 11L, 11R coincides with the longitudinal direction of the diaper 1.

The side sheets 8L, 8R have proximal end portions 12L, 12R joined to the top sheet 7 on the width direction end portion side of the elastic regions 10L, 10R. The proximal end portions 12L, 12R serve as rising lines when the elastic regions 10L, 10R rise toward the skin surface. The longitudinal direction of the base end portions 12L, 12R coincides with the longitudinal direction of the diaper 1.

The side sheets 8L, 8R have fixed end portions 13L, 13R disposed continuously from the base end portions 12L, 12R on both end portions sides in the longitudinal direction of the diaper 1. The fixed end portions 13L, 13R are joined to the top sheet 7 and are disposed on both end portions in the longitudinal direction of the diaper 1 with respect to the base end portions 12L, 12R.

The side sheets 8L, 8R have non-fixed end portions 14L, 14R disposed on both end portions in the longitudinal direction of the diaper 1 so as to be continuous from the elastic regions 10L, 10R. The unfixed end portions 14L, 14R are disposed further inward in the width direction of the diaper 1 than the fixed end portions 13L, 13R. The elastic members are not disposed at the non-fixed end portions 14L and 14R, and the non-fixed end portions 14L and 14R are regions where the elastic force of the elastic members is not generated. Further, the elastic members 8EL and 8ER may be extended in a state where the non-fixed ends 14L and 14R are not joined. In this case, too, the elastic force of the elastic members 8EL, 8ER is not generated at the non-fixed end portions 14L, 14R.

The diaper 1 has the elastic regions 10L and 10R erected by the force of the elastic members 8EL and 8ER to contract toward the center in the longitudinal direction. At this time, the elastic force of the elastic members 8EL and 8ER is also transmitted to the non-fixed ends 14L and 14R, and the non-fixed ends 14L and 14R rise toward the skin surface side with the fixed ends 13L and 13R as a boundary. Thus, the fixed end portions 13L and 13R become rising lines when the non-fixed end portions 14L and 14R rise toward the skin surface side. Thus, in the diaper 1 of the present embodiment, the unfixed end portions 14L, 14R rise toward the skin surface side at both longitudinal end portions of the elastic members 8EL, 8ER for which the three-dimensional gathers 3BL, 3BR are not provided, and the unfixed end portions 14L, 14R prevent leakage of liquid. Specifically, the unfixed end portions 14L and 14R block moisture contained in urine and feces (moisture in watery feces) and prevent liquid leakage. Thus, the diaper 1 of the present embodiment can suppress leakage of liquid.

In the present embodiment, the elastic regions 10L and 10R and the non-fixed end portions in the width direction of the diaper 1 have substantially the same length. Since the width lengths of the non-fixed end portions 14L, 14R on the extension lines of the elastic regions 10L, 10R are substantially the same as the width lengths of the elastic regions 10L, 10R, the force of the elastic members 8EL, 8ER pulling the elastic regions 10L, 10R inward in the longitudinal direction is efficiently transmitted to the non-fixed end portions 14L, 14R. This makes it easy for the diaper 1 to raise the unfixed end portions 14L, 14R toward the skin surface.

In the present embodiment, the three-dimensional gathers 3BL, 3BR can be regarded as being constituted by elastic regions 10L, 10R, free end portions 11L, 11R, base end portions 12L, 12R, fixed end portions 13L, 13R, and non-fixed end portions 14L, 14R.

< embodiment 2>

Next, the diaper 1 of embodiment 2 will be explained. Note that the same components as those of the diaper 1 of the above embodiment are denoted by the same reference numerals, and description thereof is omitted. The diaper 1 of the present embodiment is characterized by having a pocket portion.

Fig. 5 is a plan view of the diaper 1 in an extended state as viewed from the skin surface side. In fig. 5, the elastic members 4C, 4SL, and 4SR are not illustrated. As shown in fig. 5, a pocket sheet 20 for forming a pocket portion is disposed on the rear body region 1R side of the diaper 1. The pocket sheet 20 is disposed closer to the skin surface side than the side sheets 8L, 8R, and has liquid impermeability (water repellency). The pocket sheet 20 is disposed across the side sheets 8L and 8R on both sides. The pocket sheet 20 is joined to the side sheets 8L, 8R at the end portions of the diaper 1 in the width direction.

Fig. 6 is a sectional view of the diaper 1 in a state cut along line AA of fig. 5. The pocket sheet 20 is joined to the topsheet 7 on the longitudinal outer side (back side) of the diaper 1 to form a pocket portion 21 having an opening on the longitudinal inner side (crotch side). The pocket 21 is provided to suppress leakage of liquid from the back side (back region 1R side) of the wearer.

The pocket base end portion (innermost portion) 21E of the pocket portion 21 is disposed on the back side of the end portion of the absorbent body 6. The pocket portion 21 suppresses leakage of liquid flowing out from the end of the absorbent body 6 to the outside in the longitudinal direction from the back side. Thus, the diaper 1 of the present embodiment can suppress leakage of liquid from the back region 1R side (back side). Further, since the pocket portion 21 is disposed so as to overlap the back sheet 5 having liquid impermeability in plan view, the liquid accumulated in the pocket portion 21 does not leak from the non-skin surface side.

As shown in fig. 6, the pocket sheet 20 is folded back on the longitudinal direction outer side and the longitudinal direction inner side of the diaper 1 and has a double sheet structure. In the pocket sheet 20, a portion of the pocket portion 21 which is not joined to the top sheet 7 is further folded back from the pocket base end portion 21E, and a portion of the pocket sheet which is joined to the top sheet 7 is exposed to the pocket portion 21. This makes it possible to easily open the opening side of the bag 21.

In the present embodiment, the elastic member 9ER for forming the waist gather 3R is disposed in a double sheet structure of the pocket sheet 20 and at a portion where the non-skin surface side of the pocket sheet 20 is joined to the top sheet 7. In the present embodiment, the elastic member 9ER (an example of the "2 nd elastic member" in the present application) is a linear rubber, and 4 elastic members are provided.

The elastic member 22ER (an example of the "1 st elastic member" in the present application) is disposed in a double sheet structure of the pocket sheet 20 at a portion where the non-skin surface side of the pocket sheet 20 is not joined to the top sheet 7. The elastic member 22ER is disposed in such a manner that the longitudinal direction in the stretching direction is the width direction (left-right direction) of the diaper 1. The elastic member 22ER exerts a contractive force to closely attach the pocket sheet 20 to the wearer, thereby preventing a gap from being formed between the pocket sheet 20 and the back of the wearer. In the present embodiment, the elastic member 22ER is a linear rubber, and 5 elastic members are provided. The elastic members 22ER may have substantially the same expansion/contraction ratio as the elastic member 9E.

Here, the pocket portion 21 overlaps the unfixed end portions 14L, 14R on the back region 1R side. In the diaper 1, as described above, the unfixed end portions 14L, 14R rise toward the skin surface side in the worn state. The non-fixed end portions 14L and 14R rise toward the skin surface side, and the pocket sheet 20 on the pocket portion 21 also rises toward the skin surface side. This allows the diaper 1 to open the opening side of the pocket 21, and to easily introduce liquid discharged by the wearer into the pocket 21. Generally, the three-dimensional gathers are required to be provided in close contact with the skin in order to suppress lateral leakage caused by the separation of the topsheet from the skin in the crotch portion of the diaper 1. Therefore, the three-dimensional gathers are not required to rise toward the skin surface side at the longitudinal end portions of the diaper, i.e., the abdomen side and the back side. In the diaper 1 of the present embodiment, the non-fixed end portions 14L and 14R are raised toward the skin surface side so that the pocket portion 21 is opened also on the back portion side, which is the longitudinal end portion. Thus, the diaper 1 of the present embodiment can suppress leakage of liquid from the back side.

The diaper 1 of the present embodiment includes a plurality of elastic members 22ER joined to the pocket sheet 20 in an extended state so as to stretch and contract in the width direction of the diaper 1 in a region overlapping the pocket portion 21 when the diaper 1 is viewed in plan. The plurality of elastic members 22ER are disposed so as to be separated from each other in the longitudinal direction of the diaper 1.

In the diaper 1 of the present embodiment, among the elastic members 22ER adjacent to each other, the set of elastic members 22ER in which the portions where the elastic members 22ER disposed on the inner side in the longitudinal direction of the diaper 1 are joined have a lower contraction rate than the portions where the elastic members 22ER disposed on the outer side in the longitudinal direction of the diaper 1 are joined. The group of elastic members 22ER may be any adjacent 2 elastic members of the 5 elastic members 22ER. For example, in the present embodiment, the group of elastic members 22ER is composed of the elastic member 22ER disposed on the outermost side in the longitudinal direction of the diaper 1 and the elastic member 22ER disposed on the inner side in the longitudinal direction of the elastic member 22ER. The shrinkage ratio can be adjusted by the elastic modulus of each elastic member 22ER and the elongation at the time of bonding.

Here, assuming that the contraction rate is X, the length of the pocket sheet 20 of the diaper 1 in the width direction in the natural state is a, and the length of the pocket sheet 20 in the width direction in the state where the diaper 1 is stretched in the width direction without wrinkles is B, X can be calculated by the following equation (1).

X(％)＝B/A×100…(1)

If the pocket sheet 20 on the opening side of the pocket portion 21 is in contact with the top sheet 7, the opening of the pocket portion 21 becomes narrow, and it becomes difficult for liquid such as urine to enter the pocket portion 21. Since the pocket sheet 20 has liquid impermeability to intercept liquid, for example, if the pocket sheet 20 on the opening side of the pocket portion 21 is in close contact with the top sheet 7, the liquid flows onto the skin surface side of the pocket sheet 20, and the liquid leaks from the back region 1R side.

However, in the diaper 1 of the present embodiment, since the portion of the diaper 1 on the inner side in the longitudinal direction of the elastic member 22ER in the group in which the elastic member 22ER is arranged contracts compared with the portion of the diaper 1 on the outer side in the longitudinal direction of the elastic member 22ER in the group in which the elastic member 22ER is arranged, the portion on the inner side in the longitudinal direction rises toward the skin surface side compared with the portion on the outer side in the longitudinal direction. This forms a gap between the opening of the pocket 21 and the top sheet 7, and can widely open the opening of the pocket 21. The diaper 1 of the present embodiment can suppress leakage of liquid from the back region 1R side by widely opening the opening of the pocket portion 21 to facilitate entry of liquid into the pocket portion 21.

In the diaper 1 of the present embodiment, the portion where the elastic members 22ER disposed on the outer side in the longitudinal direction of the diaper 1 are joined has a larger contraction rate than the portion where the elastic members 22ER disposed at the position closest to the opening of the pocket portion 21 are joined. This shrinks the longitudinal outer side of the diaper 1 compared to the opening of the pocket 21, so that a gap is formed between the opening of the pocket 21 and the top sheet 7, and the opening of the pocket 21 can be widely opened.

Further, the top sheet 7 and the back sheet 5 are formed longer than the absorbent body 6 in the longitudinal direction of the diaper 1. Further, the pocket sheet 20 is joined to the top sheet 7 and the top sheet 7 is joined to the back sheet 5 at the outer side in the longitudinal direction than the end portion of the absorbent body 6 in the longitudinal direction. The diaper 1 of the present embodiment can form a region where the pocket sheet 20, the top sheet 7, and the back sheet 5 are present and the absorbent body 6 is not present at the diaper longitudinal direction outer end of the absorbent body 6, by providing a gap between the diaper longitudinal direction outer end of the absorbent body 6 and the opening side of the pocket portion 21, which is the diaper longitudinal direction inner end of the pocket sheet 20. Thus, the opening of the pocket portion 21 can be opened by sinking the pocket sheet 20 and the top sheet 7 toward the back sheet 5 (non-skin surface side). The diaper 1 of the present embodiment can suppress leakage of liquid from the back side.

Further, the top sheet 7 is folded toward the non-skin surface side (back sheet 5 side) at the end of the absorbent body 6 in the longitudinal direction of the diaper 1. With this configuration, it is possible to more easily provide a gap between the end portion on the outside in the diaper longitudinal direction of the absorber 6 and the opening side of the pocket portion 21, which is the end portion on the inside in the diaper longitudinal direction of the pocket sheet 20.

As shown in fig. 5, the pocket sheet 20 and the elastic members 9ER, 22ER extend beyond the absorbent body 6 on both sides of the diaper 1 in the width direction. As shown in fig. 5 and 6, the end of the absorber 6 is disposed inside the end of the top sheet and the pocket sheet 20 in the longitudinal direction of the diaper 1. In the arrangement region of the pocket sheet 20 of the diaper 1 configured as described above, at least a portion of the outer side in the width direction from the virtual extension line KL passing through the end of the absorbent body 6 in the width direction and extending in the longitudinal direction is configured to have a larger shrinkage rate than the inner side in the width direction from the virtual extension line KL.

Since the absorbent body 6 formed of pulp has higher rigidity than the sheet materials such as the top sheet 7 and the back sheet 5, the region on the inner side in the width direction of the diaper 1 from the virtual extension line KL is affected by the absorbent body 6 to reduce the shrinkage rate, and thus the flat state is easily maintained. On the other hand, in the region outside the diaper 1 in the width direction from the virtual extension line KL, the rigidity of the absorbent body 6 is less likely to be affected, and therefore the shrinkage rate increases. Therefore, the pocket sheet 20 is in a state in which the widthwise outer region is pulled inward and stands up in the thickness direction, and the opening of the pocket portion 21 is easily opened.

In the present embodiment, as described above, the front patch 2F joined to the exterior surface of the front body region 1F and used for attaching the tapes 2L and 2R for fixing the diaper 1 to the wearer, and the tapes 2L and 2R provided so as to protrude from both sides in the width direction of the rear body region 1R and used for fixing the diaper 1 to the waist of the wearer in a state of being attached to the front patch 2F are provided. In the belts 2L and 2R, hooks that engage with loops formed on the surface of the front patch 2F are disposed on the skin surface side.

Here, in the present embodiment, the bands 2L and 2R are arranged at the end portions on the back region 1R side, similarly to the pocket sheet 20. That is, the belts 2L, 2R and the pocket sheet 20 having the elastic members 9ER, 22ER are disposed on the same longitudinal direction end side of the diaper 1. With this configuration, the diaper 1 can easily spread the bands 2L and 2R by the expansion and contraction of the elastic members 9ER and 22ER when worn. This makes the diaper 1 of the present embodiment easy to wear.

< embodiment 3>

Next, the diaper 1 of embodiment 3 will be explained. Note that the same components as those of the diaper 1 of the above embodiment are denoted by the same reference numerals, and description thereof is omitted. The diaper 1 of the present embodiment has a pocket portion as in embodiment 2, but the pocket member is provided on the non-skin surface side of the side sheet, unlike embodiment 2.

Fig. 7 is a plan view of the diaper of embodiment 3 as viewed from the skin surface side. In the present embodiment, as in fig. 4, the elastic members 4C, 4SL, and 4SR are not illustrated. As shown in fig. 7, a pocket sheet 20 for forming a pocket portion is disposed on the rear body region 1R side of the diaper 1. The pocket sheet 20 is a liquid-impermeable (hydrophobic) sheet as in embodiment 2, and is disposed so as to straddle the side sheets 8L and 8R on both sides. The same applies to embodiment 2 in that the pocket sheet 20 is joined to the side sheets 8L and 8R at the end portions of the diaper 1 in the width direction. On the other hand, in the present embodiment, unlike embodiment 2, the pocket sheet 20 is provided on the non-skin surface side of the side sheets 8L, 8R.

Fig. 8A, 8B, and 8C are sectional views of the diaper of embodiment 3. In other words, the cross-sectional view is a cross-sectional view of the diaper 1 in a non-worn state taken along the width direction. Fig. 8A is a sectional view of the diaper 1 at the center in the longitudinal direction (more specifically, the crotch region 1B).

The side sheets 8L and 8R are joined to the top sheet 7 at the base ends 12L and 12R in a longitudinally inner region centered on the crotch region 1B, and form inward folded portions extending from the base ends 12L and 12R toward the widthwise inner side without being joined to other sheets. Further, the inner end in the width direction of the folded-in portion is folded outward in the width direction in the opposite direction, and an outer folded portion extending without being joined to another sheet is formed similarly to the inner folded portion. A plurality of elastic members 8EL, 8ER that expand and contract in the longitudinal direction are arranged in the folded-out portion, and elastic regions 10L, 10R are formed. In embodiment 3, the elastic regions 10L and 10R are regions of the folded-out portion. The outer ends in the width direction of the outer fold portions are free ends 11L and 11R which are ends on the side raised toward the skin surface side so as to pass through the elastic regions 10L and 10R where the elastic members 8EL and 8ER are arranged when the diaper 1 is worn. The longitudinal direction of the elastic regions 10L, 10R and the free end portions 11L, 11R coincides with the longitudinal direction of the diaper 1.

In this way, the side sheets 8L, 8R of the diaper 1 of the present embodiment have the inward folded portion and the outward folded portion. When worn, the elastic force of the elastic regions 10L and 10R provided in the outer fold causes the folds of the inner fold and the outer fold to unfold and rise toward the skin surface of the wearer, thereby forming the three-dimensional gathers 3BL and 3BR. More specifically, the side sheets 8L and 8R are once raised from the base end portions 12L and 12R toward the inner side in the width direction at the folded-in portions, and then folded further toward the outer side in the width direction to form three-dimensional gathers 3BL and 3BR in skirt gathers.

When the three-dimensional gathers 3BL, 3BR are formed by the inner fold portions and the outer fold portions in this way, the space formed between the inner fold portions and the top sheet 7 can hold the discharged material having a large liquid component such as urine flowing into the widthwise end portions of the absorbent body 6. Therefore, the absorbent body 6 can be sequentially absorbed while preventing liquid from flowing out to the outside in the width direction of the three-dimensional gathers 3BL, 3BR. Further, the elastic regions 10L and 10R provided in the outer fold portions are brought into close contact with the skin surface of the wearer, whereby discharge materials containing a large amount of solid components such as feces can be prevented from flowing out to the outside in the width direction of the three-dimensional gathers 3BL and 3BR. In this way, the three-dimensional gathers 3BL, 3BR having the inner fold portions and the outer fold portions can prevent movement to the outer sides in the width direction of the three-dimensional gathers 3BL, 3BL regardless of the contents of the discharge that has reached the vicinity of the three-dimensional gathers 3BL, 3BR.

Fig. 8B is a cross-sectional view of the diaper 1 at the longitudinal end portion side of the back region 1R (more specifically, in the vicinity of the opening of the pocket 21), and the bands 2L and 2R are omitted. In addition, at the position shown in fig. 8B, the absorber 6 does not extend. On imaginary extension lines of the three-dimensional gathers 3BL, 3BR, the pocket sheet 20 is present on the non-skin surface side of the side sheets 8L, 8R. In the position of fig. 8B, although the folded-in portions and the folded-out portions of the side sheets 8L and 8R are present, the elastic members 8EL and 8ER and the elastic regions 10L and 10R extending inward in the longitudinal direction are not present. The folded-out portions are also present in virtual extension regions obtained by virtually extending the elastic regions 10L and 10R provided with the elastic members 8EL and 8ER in the longitudinal direction at the longitudinal direction end portions. Therefore, the inflected section extends from the base end sections 12L and 12R toward the front of the virtual extension regions of the elastic regions 10L and 10R and toward the inside in the width direction, and the inflected section is continuous with the width direction inside end section of the inflected section and extends so as to be bent outward in the width direction in the virtual extension regions of the elastic regions 10L and 10R. With this configuration, when the diaper 1 is worn, the biasing force of the elastic members 8EL and 8ER provided on the crotch region 1B side is transmitted to the longitudinal end portion side, and the folded-out portion is still biased toward the skin surface side. Further, the folded-in portion continuous with the folded-out portion is also urged toward the skin surface side.

The widthwise outer portions of the folded-in portions of the side sheets 8L, 8R are joined to the pocket sheet 20. The joining portion is disposed in a range from the longitudinal direction outer side of the pocket sheet 20 to the vicinity of the longitudinal direction inner side end portion over most of the longitudinal direction of the pocket sheet 20. On the other hand, the longitudinal direction inner end of the pocket sheet 20 is not joined to the side sheets 8L and 8R, and becomes a free end. When the side sheets 8L and 8R are biased toward the skin surface side, the joined pocket sheet 20 is biased to open toward the skin surface side and opens toward the longitudinal direction inner side (crotch side), thereby forming the pocket portion 21. The pocket 21 guides the discharged materials moving toward the longitudinal outer side inward, thereby suppressing the discharged materials from leaking from the longitudinal end of the diaper 1.

In the region shown in fig. 8B, the folded-out portions of the side sheets 8L, 8R are also not joined to other sheets. Therefore, the folded-out portion rises toward the skin surface of the wearer by the urging force transmitted from the elastic regions 10L, 10R. Therefore, in the diaper 1 of the present embodiment, even when the discharged material that has moved to the longitudinal end portion side does not completely enter the inlet bag portion 21, leakage to the outside in the width direction of the side sheets 8L and 8R can be suppressed.

Fig. 8C is a sectional view of the diaper 1 in the vicinity of the longitudinal end of the back body region 1R. In fig. 8C, the belts 2L and 2R are also omitted as in fig. 8B. Joining portions 16L, 16R are provided in the vicinity of the longitudinal end portions of the diaper 1 at the widthwise central portions of the inner fold and the outer fold. Each sheet laminated on the longitudinal end of the diaper 1 is a nonwoven fabric made of thermoplastic resin, and can be integrally joined by heat welding such as ultrasonic welding. For example, in the example of fig. 8C, the side sheets 8L and 8R, the pocket sheet 20, and the top sheet 7 are integrally joined to form joined portions 16L and 16R. Further, all the sheets including the cover sheet 4 may be integrally joined. The longitudinal end portions of the diaper 1 are easily subjected to stress by the wearing and taking-off of the diaper 1 and the friction with clothes and the like. By integrally joining the sheets laminated on the longitudinal end portions to the joining portions 16L, 16R at this portion, it is possible to prevent a part of the sheets constituting the diaper 1 from peeling off at the longitudinal end portions and deteriorating in function.

The joining portions 16L, 16R are provided only at the widthwise central portions of the folded-in portions and the folded-out portions, and outer non-joining portions 17L, 17R are present on the widthwise outer sides of the joining portions. Further, inner non-joined portions 18L, 18R are present on the inner side in the width direction of the joined portions. The free end portions 11L, 11R of the folded-out portions of the side sheets 8L, 8R are not joined to other sheets at the outer non-joined portions 17L, 17R. Further, at the inner non-joined portions 18L, 18R, the outer fold portions of the side sheets 8L, 8R and the inner fold portions connected to the outer fold portions are not joined to other sheets on the inner side in the width direction.

The outer non-joined portions 17L, 17R and the inner non-joined portions 18L, 18R are present on imaginary extension lines of the elastic members 8EL, 8ER provided on the crotch region 1B side, and are urged to rise by the urging forces of the elastic members 8EL, 8ER when the diaper is worn. Therefore, even in a state where the side sheets 8L, 8R are integrally joined to another sheet by the joining portions 16L, 16R, the outer non-joining portions 17L, 17R and the inner non-joining portions 18L, 18R of the side sheets 8L, 8R can rise toward the skin surface side.

With this configuration, even if discharge should flow into the vicinity of the longitudinal end portions, the outer non-joined portions 17L, 17R and the inner non-joined portions 18L, 18R serve as multiple barriers, and the discharge can be effectively prevented from spreading in the width direction beyond the side panels 8L, 8R, thereby improving comfort for the wearer, a mediator, and the like.

< other embodiment >

Next, other embodiments will be described. In the above embodiments, the tape-type disposable diaper has been described as an example, but the present invention is not limited to this, and the present invention can be applied to absorbent articles such as pants-type disposable diapers and absorbent pads.

In embodiment 1, the fixed end portions 13L and 13R and the non-fixed end portions 14L and 14R are provided at both longitudinal ends (the front body region 1F and the back body region 1R) of the diaper 1, but may be provided at either longitudinal end.

In embodiment 2, the pocket sheet 20 is disposed in the back region 1R, but may be disposed in the front region 1F, or may be disposed in both the front region 1F and the back region 1R. When the pocket sheet 20 is disposed on the back region 1R side, the tapes 2L and 2R are disposed on the back region 1R side, and the front patch 2F is disposed on the front region 1F side. On the other hand, when the pocket sheet 20 is disposed on the front body region 1F side, the tapes 2L and 2R are disposed on the front body region 1F side, and the front patch 2F is disposed on the back body region 1R side.

In the above embodiment, the top sheet 7 is made of a 1-layer sheet material, but the present invention is not limited thereto. For example, the top sheet 7 may be formed of 2 or more layers of sheet material. For example, when the top sheet 7 is formed of 2-ply material, the side sheets 8L and 8R may be joined to the lower sheet or to both sheets.

Further, the absorbent body 6 may be wrapped by a core wrap sheet. The core wrap sheet is a water permeable sheet made of a nonwoven fabric made of pulp fibers such as paper towels or thin resin fibers, and covers the entire absorbent body 6 to maintain the form of the absorbent body 6 and prevent SAP particles from being dispersed in other structures. Further, the core wrap sheet has water permeability, and therefore does not prevent urine from moving from the skin surface side to the absorber 6.

The embodiments and the modifications disclosed above can be combined separately.

Claims (15)

1. An absorbent article (1) having a length in a longitudinal direction and a width in a width direction orthogonal to the longitudinal direction, and being worn toward the crotch of a wearer, the absorbent article (1) being characterized by comprising:

an absorbent body (6);

a skin side sheet (7) having liquid permeability and disposed on the skin surface side of the absorbent body (6); and

side sheets (8L, 8R) having liquid impermeability and disposed outside the center in the width direction for forming three-dimensional gathers,

the side sheets (8L, 8R) have elastic regions (10L, 10R), free end portions (11L, 11R), proximal end portions (12L, 12R), fixed end portions (13L, 13R), and non-fixed end portions (14L, 14R),

elastic members that expand and contract in the longitudinal direction are arranged in the elastic regions (10L, 10R),

the free end portions (11L, 11R) are end portions on the side that rises toward the skin surface side by the elastic member,

the base end portions (12L, 12R) are joined to the skin surface side sheet (7) at the end portion sides in the width direction with respect to the elastic regions (10L, 10R),

the fixed end portions (13L, 13R) are disposed so as to be continuous from the base end portions (12L, 12R) on the end portion side in the longitudinal direction, and are joined to the skin surface side sheet (7),

the non-fixed end portions (14L, 14R) are disposed on the inner side in the width direction than the fixed end portions (13L, 13R), and are disposed so as to be continuous from the elastic regions (10L, 10R) on the end portion side in the longitudinal direction.

2. Absorbent article (1) according to claim 1,

the elastic regions (10L, 10R) and the non-fixed end portions (14L, 14R) in the width direction have the same length.

3. Absorbent article (1) according to claim 1,

the absorbent article (1) further comprises a liquid-impermeable pocket sheet (20) disposed on the skin surface side of the side sheets (8L, 8R) on the end portion side in the longitudinal direction,

the pocket sheet (20) is joined to the side sheets (8L, 8R) on the end side in the width direction, is joined to the skin surface side sheet (7) on the outer side in the longitudinal direction, and has a pocket portion (21) whose inner side in the longitudinal direction is open.

4. Absorbent article (1) according to claim 3,

the absorptive article (1) is provided with a front body region located on the abdomen side of the wearer, a crotch region located in the crotch, and a back body region located on the back side in this order in the longitudinal direction,

the end portion side in the longitudinal direction is an end portion on a posterior region side, and the pocket portion (21) overlaps the non-fixed end portions (14L, 14R).

5. Absorbent article (1) according to claim 3,

the absorbent article (1) further comprises a plurality of 1 st elastic members joined to the pocket sheet (20) in an extended state so as to stretch in the width direction in a region overlapping the pocket portion (21) and arranged apart from each other in the longitudinal direction,

and a group of the 1 st elastic members adjacent to each other, wherein the group of the 1 st elastic members has a lower contraction rate at a portion where the 1 st elastic member arranged on the inner side in the longitudinal direction is joined than at a portion where the 1 st elastic member arranged on the outer side in the longitudinal direction is joined.

6. Absorbent article (1) according to claim 5,

the group of the 1 st elastic members includes the 1 st elastic member disposed on the outermost side in the longitudinal direction and the 1 st elastic member disposed on the inner side in the longitudinal direction than the 1 st elastic member.

7. Absorbent article (1) according to claim 5,

the portion where the 1 st elastic member arranged on the outer side in the longitudinal direction is joined has a larger contraction rate than the portion where the 1 st elastic member arranged at a position closest to the opening of the pocket portion (21) is joined.

8. Absorbent article (1) according to claim 5,

the absorbent article (1) further comprises a plurality of No. 2 elastic members which are joined to the pocket sheet (20) in an extended state so as to stretch in the width direction in a region where the pocket sheet (20) and the skin surface side sheet (7) are joined, and which are arranged so as to be separated from each other in the longitudinal direction,

the expansion/contraction ratio of each of the plurality of 2 nd elastic members is the same as the expansion/contraction ratio of the 1 st elastic member disposed on the outermost side in the longitudinal direction.

9. Absorbent article (1) according to any one of claims 3-8,

the absorptive article (1) further comprises a non-skin side sheet (5) having liquid impermeability, which is formed longer than the absorptive body (6) in the longitudinal direction and is disposed on the non-skin surface side of the absorptive body (6),

the skin side sheet (7) is longer than the absorbent body (6) in the longitudinal direction,

the pocket sheet (20) is joined to the skin-side sheet (7) and the skin-side sheet (7) is joined to the non-skin-side sheet (5) on the outer side in the longitudinal direction than the end of the absorber (6) in the longitudinal direction.

10. Absorbent article (1) according to claim 9,

the skin surface side sheet (7) is bent toward the non-skin surface side at an end of the absorber (6) in the longitudinal direction.

11. Absorbent article (1) according to claim 3 or 4,

the absorbent article (1) further comprises a 1 st elastic member joined to the pocket sheet (20) in an extended state so as to stretch in the width direction,

the pocket sheet (20) and the 1 st elastic member extend beyond the absorbent body (6) on both sides in the width direction, and the end of the absorbent body (6) is disposed inside the skin-side sheet (7) and the end of the pocket sheet (20) in the longitudinal direction,

in the arrangement region of the pocket sheet (20), at least a part of the outer side in the width direction from an imaginary extension line that passes through an end of the absorbent body (6) in the width direction and extends in the longitudinal direction has a larger shrinkage rate than a part of the inner side in the width direction from the imaginary extension line.

12. An absorbent article (1) having a length in a longitudinal direction and a width in a width direction orthogonal to the longitudinal direction, and being worn toward the crotch of a wearer, the absorbent article (1) comprising:

an absorber (6);

a skin side sheet (7) having liquid permeability and disposed on the skin surface side of the absorbent body (6);

side sheets (8L, 8R) for forming three-dimensional gathers, which are liquid-impermeable and are arranged outside the center in the width direction; and

a liquid-impermeable pocket sheet (20) disposed on the non-skin surface side of the side sheets (8L, 8R) on the end portion side in the longitudinal direction,

the pocket sheet (20) is joined to the side sheets (8L, 8R) at the end portions in the width direction, is joined to the skin surface side sheet (7) at the outer side in the longitudinal direction, and has a pocket portion (21) whose inner side in the longitudinal direction is open,

the side sheets (8L, 8R) have elastic regions (10L, 10R), free end portions (11L, 11R), proximal end portions (12L, 12R), fixed end portions (13L, 13R), and non-fixed end portions (14L, 14R),

a plurality of elastic members which expand and contract in the longitudinal direction are arranged in the elastic regions (10L, 10R),

the free end portions (11L, 11R) are end portions on the side that rises toward the skin surface side by the elastic member,

the base end portions (12L, 12R) are joined to the skin surface side sheet (7) at the end portion sides in the width direction with respect to the elastic regions (10L, 10R),

the fixed end portions (13L, 13R) are arranged so as to be continuous on an imaginary extension line of the free end portions (11L, 11R) on the end portion side in the longitudinal direction, and the widthwise central portion thereof is joined to the pocket sheet (20),

the non-fixed end portions (14L, 14R) are disposed on the inner side in the width direction and the outer side in the width direction of the fixed end portions (13L, 13R).

13. Absorbent article (1) according to claim 12,

the non-fixed end portions (14L, 14R) are provided on an imaginary extension line of the longitudinal direction of an elastic member disposed in the elastic regions (10L, 10R).

14. Absorbent article (1) according to claim 12 or 13,

the side sheets (8L, 8R) have an inward folded portion and an outward folded portion,

the folded-in portion extends from the base end portion (12L, 12R) toward the elastic region (10L, 10R) and toward the inside in the width direction in front of an imaginary extension region of the elastic region (10L, 10R),

the outer fold portion is continuous with an inner end portion of the inner fold portion in the width direction, and extends so as to be folded outward in the width direction in an imaginary extension region of the elastic region (10L, 10R) and the elastic region (10L, 10R),

the width-direction outer side portion of the inner fold portion is joined to the pocket sheet (20) from the outer side of the pocket sheet (20) in the length direction to the vicinity of the inner end of the length direction.

15. Absorbent article (1) according to claim 14,

the fixed end portions (13L, 13R) are provided on the end portion side in the longitudinal direction of the pocket sheet (20), and the folded-out portions are joined to the folded-in portions at the fixed end portions (13L, 13R).

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