WO2017145394A1

WO2017145394A1 - Disposable diaper

Info

Publication number: WO2017145394A1
Application number: PCT/JP2016/056170
Authority: WO
Inventors: 橋本　達也; 哲郎大窪; 奐奐陳
Original assignee: ユニ・チャーム株式会社
Priority date: 2016-02-26
Filing date: 2016-03-01
Publication date: 2017-08-31
Also published as: JP2017148389A; JP6411394B2; TW201740895A

Abstract

A standing gather (15) in a disposable diaper (1) includes: a base end part that cannot stand; and a standing part (154) which can shrink in the length direction (L) by means of an elastic member (155) and can stand at the base end part toward the skin-facing side (T1) as observed in the thickness direction (T). The base end part has: first base end parts (151) which are respectively arranged on both the outer sides relative to the standing part (154) as observed in the length direction (L); and second base end parts (152) each of which is arranged on the outer side relative to the standing part (154) as observed in the width direction (W). The standing part (154) has a bonding part (153) at which side sheets (14) are bonded to each other on the inner side relative to each of the second base end parts (152) as observed in the width direction (W). The bonding part (153) is provided in a rear side region (2). An absorbent material (11) in the rear side region (2) has a high-stiffness part (19) which has higher stiffness than that of a part of the absorbent material (11) which is located at the length-direction center (1LC) of the disposable diaper (1).

Description

Disposable diapers

The present invention relates to disposable diapers.

Patent Document 1 discloses a disposable diaper having an absorbent core, an edge where the absorbent core does not exist outside the absorbent core in the width direction, and a three-dimensional gather. The solid gather of Patent Document 1 is fixed on both sides in the width direction than the absorbent core, and stands on the wearer side with the vicinity of the peripheral edge as a base point.

JP, 2014-180346, A

The maximum height at which the solid gather stands up is the distance between the fixed part of the solid gather and the inner edge of the solid gather. In the solid gather of Patent Document 1, since the fixed part is located on the outer side in the width direction than the absorbent core, the fixed part and the inner edge of the solid gather are compared with the configuration where the fixed part is located on the absorbent core. The distance of Therefore, the height of the solid gather of Patent Document 1 tends to be high.

However, if the height of the solid gather is too high, the solid gather may fall toward the outside in the width direction. In particular, when the three-dimensional gather in the rear area falls toward the outside in the width direction, it is not possible to provide a stool pocket for containing stool between the three-dimensional gather and the absorbent core, which may cause stool leakage. .

In addition, the distance between the fixed part of the solid gather and the inner edge of the solid gather is too long, or the distance between the left and right solid gathers is narrowed, and the inner edge of the solid gather in the rear area is within the groin of the wearer. If it gets into, it will be difficult for the solid gathers to cover the bulge of the buttocks, and there may be a possibility of stool leakage.

Then, this invention is made in view of the above-mentioned subject, and it aims at providing the disposable diaper which can control the leak of the stool by solid gathers.

In order to solve the problems described above, the disposable diaper (disposable diaper 1) according to the present disclosure has a longitudinal direction (longitudinal direction L), a width direction (width direction W) orthogonal to the longitudinal direction, and a thickness direction (thickness A front area (front area 3) having a direction T) and located forward of the longitudinal center of the disposable diaper, and a rear area (rearward) located behind the longitudinal center of the disposable diaper A rear area 2), an absorber (absorber 11) disposed across the front area and the rear area, a sheet material (side sheet 14) and an elastic member (three-dimensional gather elastic member 155); It is a disposable diaper provided with a pair of solid gathers (solid gathers 15) disposed on both sides of the width direction of the disposable diaper in the width direction (center 1 WC of the width direction of the disposable diaper). Said The body gathers a proximal end which can not stand up, and a standing portion (a standing portion 154) which is contracted in the longitudinal direction by the elastic member and can stand on the skin side in the thickness direction with the proximal end as a fulcrum. The base end portion includes a first base end portion (first base end portion 151) disposed at both longitudinal outer edges of the rising portion, and an outer edge of the width direction of the rising portion. A joint portion (joining portion) having a second base end portion (second base end portion 152) to be disposed, wherein the sheet members are joined to each other to narrow the length in the width direction of the erected portion A portion 153), the joint is disposed in the rear area, and the absorber in the rear area is higher in rigidity than the absorber located at the center in the longitudinal direction of the disposable diaper The gist is to have a high rigidity portion (high rigidity portion 19).

It is a perspective image figure of the disposable diaper concerning one embodiment. It is a top view of the disposable diaper of an unfolded state. It is a top view of a solid gather. It is sectional drawing along the width direction of a disposable diaper. (A) is a cross-sectional view based on the line AA in FIG. 2, (b) is a cross-sectional view based on the line BB in FIG. 2, (c) is a cross-sectional view It is sectional drawing on the basis of a CC line. It is sectional drawing along the longitudinal direction of the disposable diaper of the state with which the wearer was equipped. (A) is a disposable diaper which concerns on a comparative example, (b) is a disposable diaper which concerns on embodiment. It is sectional drawing along the width direction of the standing part of a solid gather. (A) is a disposable diaper which concerns on a comparative example, (b) is a disposable diaper which concerns on embodiment.

At least the following matters will be made clear by the present specification and the description of the accompanying drawings.

A longitudinal direction, a width direction orthogonal to the longitudinal direction, and a thickness direction,
A front side area located forward of the longitudinal center of the disposable diaper, and a rear side area located rearward of the longitudinal center of the disposable diaper;
An absorber disposed across the front area and the rear area;
What is claimed is: 1. A disposable diaper comprising: a sheet member and an elastic member, and a pair of solid gathers disposed on both outer sides in the width direction than the center in the width direction of the disposable diaper.
Said solid gather is
A proximal end portion which can not stand up, and an upright portion which is contracted in the longitudinal direction by the elastic member and can stand on the skin side in the thickness direction with the proximal end portion as a fulcrum;
The proximal end is a first proximal end disposed at both longitudinal outer edges of the upstanding portion;
And a second base end disposed at the outer edge in the width direction of the rising portion,
The rising portion includes a bonding portion that joins the sheet members and narrows the length in the width direction of the rising portion.
The junction is disposed in the rear region,
The disposable diaper, wherein the absorbent body in the rear region has a high rigidity portion that is higher in rigidity than the absorbent body located at the center in the longitudinal direction of the disposable diaper.

According to such a disposable diaper, the standing portion of the three-dimensional gather stands on the wearer side with the first base end and the second base end as base points. In the cross section along the width direction, the standing portion of the solid gather rises from the second base end. The maximum height of the erected state of the solid gather is the distance between the second proximal end and the inner edge of the solid gather.

Junctions are disposed in the rear gathers. In the portion where the joint is disposed, the distance between the second proximal end and the inner edge of the solid gather is short as compared with the portion where the joint is not disposed. Due to the relatively short distance between the second base end and the inner edge of the solid gather, the tension between the elastic member of the solid gather and the second base end and the elastic member of the solid gather and the first base end Tension between the two is easily maintained, and when worn, it becomes difficult for the inner edge of the solid gather to unfold as it falls outside in the width direction. Therefore, it becomes easy to provide the stool pocket by solid gathers, and can control the leak of excrement. In addition, since the first base end is positioned more inward in the width direction than the second base end, the inner edge of the solid gather is pulled by the first base end and tends to fall inward in the width direction. Therefore, a stool pocket is easily formed.

In addition, the rigidity of the absorber in the back region is relatively high, and it is likely to repel in the width direction even if it receives elastic force placed around the waist or the force inward in the width direction from both feet at the time of wear. It becomes difficult for solid gathers to get inside the width direction. Since it is difficult for the left and right three-dimensional gathers to enter inside in the width direction, the three-dimensional gathers can be arranged at an appropriate position so as to cover the bulge of the buttocks. Since it is difficult for the left and right three-dimensional gathers to enter inside in the width direction, it is possible to prevent the inner edge of the three-dimensional gather from falling to the outside in the width direction when the three-dimensional gather enters inside. The solid gather can be provided at a suitable position in the width direction, and the solid gather can suppress stool leakage.

Such a disposable diaper,
It is desirable that the first base end portion located in the rear area and the joint portion be separated.

According to such a disposable diaper, the joint portion is not provided between the first base end portion located in the rear side area and the joint portion, and the distance between the second base end portion and the inner edge of the solid gather is Relatively long. In the area where the joint portion is not provided, the pocket by the three-dimensional gather can be formed large, and the space for containing stool can be widely secured.

Such a disposable diaper,
The junction is located in the front area,
The ratio of the longitudinal length of the joint to the longitudinal length of the raised portion in the rear area is the ratio of the longitudinal length of the joint to the length of the raised portion in the front side Higher than is desirable.

According to such a disposable diaper, the ratio of the area in which the joint portion is disposed in the rising portion of the rear area is higher than the ratio of the area in which the joint portion is disposed in the rising portion in the front side area. Therefore, in the rear area, the ratio of the area which tends to be relatively low is large, and the height of the rising portion can be easily suppressed. It can suppress effectively that the height of the solid gather of a back side area becomes high too much, and it can suppress more the fall to the width direction outer side of the solid gather by the inner edge of solid gather rising too much.

In addition, the shape of the wearer's legs and waist is generally expanded rearward from the front. Since the height of the solid gathers is effectively suppressed on the rear side of the longitudinal center of the disposable diaper, the solid gathers hit the buttocks and the like at the time of wearing, and turn around outwards or enter inside the widthwise direction. It can be suppressed. Particularly in the rear region, leakage of excrement can be suppressed by suppressing the falling of the solid gather to the width direction outer side or arranging the solid gather so as to cover the swelling of the buttocks.

On the other hand, in the front area, the height of the solid gather can be secured compared to the rear area. The excrement excreted in the anterior region is mainly urine, which is more fluid than stool. A relatively high solid gather acts as a breakwater if it can not be absorbed immediately at the time of a large amount of urination.

Such a disposable diaper,
The joint portion straddles the center of the disposable diaper in the longitudinal direction and is separated from each of the first base end portions,
The distance between the first base end located in the rear side area and the rear end edge of the joint is greater than the distance between the first base end located in the front side area and the front end edge of the joint Short is desirable.

According to such a disposable diaper, the joint portion is disposed across the longitudinal center of the disposable diaper, whereby the standing portion located at the longitudinal center of the disposable diaper is a distance from the second base end portion Becomes short and is pulled outward in the width direction. Therefore, the tension of the elastic member located at the longitudinal center of the disposable diaper is easy to maintain a high state. The upright portion located at the center in the longitudinal direction of the disposable diaper is easily pulled by the first base end and maintained in the state of being fallen inward in the width direction. Moreover, height is suppressed and the standing part located in the center of the longitudinal direction of a disposable diaper can suppress more effectively falling down the width direction outer side.

In addition, the upright portion located at the longitudinal center of the disposable diaper is pulled to the second base end and pulled outward in the width direction. Therefore, it is easy to maintain the state where the solid gathers stood up to the wearer side, and it is possible to widely provide the left and right solid gathers. In addition, the junction in the back region is closer to the first base end than the junction in the front region. By suppressing the height of the solid gather, the effect of the solid gather falling inward in the width direction can be more easily exhibited in the rear region. The rising portion of the solid gather in the rear region is pulled toward the second base end, and is pulled toward the first base end, and is slightly inclined inward in the width direction. Therefore, it is possible to form a space for containing stool between the solid gather and the absorber, and to prevent the feces from directly touching the skin by the solid gather disposed between the stool and the skin.

Such a disposable diaper,
A plurality of the elastic members are arranged at a distance in the width direction,
It is desirable that the elongation of the inner elastic member located at the innermost side in the width direction be higher than the elongation of the elastic member located at the outer side in the width direction than the inner elastic member.

According to such a disposable diaper, since the plurality of elastic members are arranged at a distance in the width direction, the portion contracted by the elastic members has a certain length in the width direction, Become. Since the portion contracted by the elastic member is planar, the length in the width direction of the stool pocket can be easily secured. In addition, since the portion contracted by the elastic member is planar, it is possible to reduce the contact with the skin as compared with the configuration in which one elastic member is contracted.

In addition, the inner elastic member has a longer distance to the second base end and is less likely to be pulled by the second base end, as compared to other elastic members. However, since the extension rate of the inner elastic member is higher than the extension rates of the other elastic members, the deflection of the inner elastic member is suppressed, and it becomes easier to form the stool pocket.

Such a disposable diaper,
The high rigidity portion is provided with a pair of rear lines extending from the center side in the longitudinal direction of the disposable diaper to the rear side and extending from the inside in the width direction to the outside in the width direction,
In the back side line, it is desirable that a depression is provided on the skin side of the absorber, and a squeezed portion is provided on the non-skin side of the depression.

According to such a disposable diaper, the absorber in the rear region has high rigidity because it has the rear line. In addition, since the rear side line extends from the center side in the longitudinal direction of the disposable diaper to the rear side and extends from the inside in the width direction to the outside in the width direction, the force from the outside in the width direction toward the inside in the width direction is When it takes, it plays a role like a support stick, and it can control that an absorber is deformed in the cross direction inner side. Therefore, an absorber is easy to be arranged along the swelling of a wearer's buttocks. By arranging the absorber so as to cover the bulge of the buttocks, the three-dimensional gathers can be easily arranged along the bulges of the buttocks, the three-dimensional gathers can be disposed at more appropriate positions, and the three-dimensional gathers can prevent leakage of excrement .

Such a disposable diaper,
A pair of lines are provided on both sides of the absorber in the width direction,
The pair of lines includes the back side line,
In the line, a depression is provided on the skin side of the absorber, and a squeezed part is provided on the non-skin side of the depression,
The line has an inward protruding convex portion in the width direction,
It is preferable that the rear side line is a straight line extending outward and the rear side in the width direction starting from the convex apex, or a curved line curved outward in the width direction.

Such a disposable diaper,
A pair of lines are provided on both sides of the absorber in the width direction,
In the line, a depression is provided on the skin side of the absorber, and a squeezed part is provided on the non-skin side of the depression,
The pair of lines is
An inward protruding convex portion in the width direction;
It is desirable to have a straight line extending to the outside and the back side in the width direction starting from the convex top and a curved back side line curved to the outside in the width direction.

According to such a disposable diaper, the absorber in the rear region has high rigidity because it has the rear line. In addition, the line has a straight or curved outward curved back line extending to the rear side of the disposable diaper in the outer side in the width direction and in the longitudinal direction starting from the convex top. The back side line extends outward and rearward in the width direction, and thus extends outward in the width direction so as to cover the bulge of the buttocks from the crotch to the buttocks side of the wearer. Therefore, an absorber is easy to be arranged along the swelling of a wearer's buttocks. By arranging the absorber so as to cover the bulge of the buttocks, the three-dimensional gathers can be easily arranged along the bulges of the buttocks, the three-dimensional gathers can be disposed at more appropriate positions, and the three-dimensional gathers can prevent leakage of excrement .

=== About the absorbent article according to the present embodiment ===
Next, an embodiment of the disposable diaper 1 according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the ratio of each dimension is different from the actual one. Therefore, specific dimensions and the like should be determined in consideration of the following description. In addition, parts having different dimensional relationships and proportions may be included between the drawings.

(1) Overall Schematic Configuration of Disposable Diaper FIG. 1 is a perspective image view of a disposable diaper according to an embodiment. FIG. 2 is a plan view of the disposable diaper in the unfolded state. FIG. 3 is a plan view of the solid gather. FIG. 4 is a cross-sectional view along the width direction of the disposable diaper. In the plan view shown in FIG. 2 and the plan view shown in FIG. 3, the elastic members such as the solid gather elastic member 155 etc. are in a state where wrinkles such as the top sheet 12, side sheets 14 and solid gather 15 It is a figure of the extended state extended.

The disposable diaper 1 has a longitudinal direction L, a width direction W orthogonal to the longitudinal direction L, and a thickness direction T. The longitudinal direction L is a direction connecting the front exterior body 30 disposed on the ventral side of the wearer and the back exterior body 20 disposed on the back side of the wearer. Thickness direction T is a direction which ties skin side T1 which is a direction which contacts a wearer, and non-skin side T2 of the opposite side.

The disposable diaper 1 has a back side area 2 located rearward of the longitudinal center 1 LC of the disposable diaper and a front side area 3 located forward of the longitudinal center 1 LC of the disposable diaper. The disposable diaper 1 is a so-called three-piece type and has three parts. The disposable diaper 1 is applied to the crotch of the wearer as the first part, and has an absorbent main body that absorbs excrement, and a rear exterior body 20 that covers the back side of the wearer as the second part, and the third And a front exterior body 30 covering the ventral side of the wearer as a part.

As shown in FIG. 4, the absorbent main body 10 at least includes an absorbent body 11, a top sheet 12, a back sheet 13, and a side sheet 14. The absorber 11 has the absorption core 11a suitably comprised using well-known members and materials, such as ground pulp and a high absorption polymer. The absorbent core 11a may be wrapped by a core wrap 11b. The configuration of the absorber 11 will be described in detail later.

A liquid permeable top sheet 12 is provided on the surface side (skin side) of the absorber 11. The top sheet 12 covers the skin surface side of the absorber 11. The outer edge of the top sheet 12 extends outward in the width direction more than the absorbent body 11. A liquid impermeable back sheet 13 is provided on the non-skin side of the absorber 11. Side sheets 14 are respectively provided at the outer edges (the outer ends in the width direction) of the absorbent body 11. The side sheet 14 covers the outer edge of the absorber 11 and extends outward in the width direction than the absorber 11. The inner edge of the side sheet is disposed on the absorbent body 11. The side sheet 14 extended to the outer side in the width direction than the absorber 11 is folded back to the non-skin side at a base point located outside the outer edge of the absorber 11 in the width direction. A part of the side sheet 14 folded back to the non-skin side is disposed on the non-skin side of the absorber 11.

The absorbent body 10 has a solid gather 15 and a leg gather 16. The three-dimensional gather 15 has a side sheet 14 as a sheet material and a three-dimensional gather elastic member 155 as an elastic member. The solid gathers 15 are arranged in pairs on both outer sides in the width direction than the center 1WC in the width direction of the disposable diaper. The three-dimensional gather may be made of a sheet material different from that of the side sheet 14. The solid gather 15 will be described in detail later.

The leg gathers 16 are arranged in a pair on both outer sides in the width direction than the solid gathers 15. The leg gather 16 has a non-woven sheet 161, a film sheet 162, and a leg gather elastic member 163. The nonwoven fabric sheet 161 is folded inward in the width direction from the outer edge of the absorbent main body 10 as a base point, and is laminated in two layers. A film sheet 162 is disposed between the non-woven sheets 161. The leg gather elastic member 163 is disposed between the non-woven fabric sheet positioned on the non-skin side of the two-layer non-woven fabric sheet and the film sheet 162. The leg gather elastic members 163 are made of thread rubber, and six of them are disposed for each of the left and right leg gathers 16. The leg gathers elastic members 163 are stretchable in the longitudinal direction and are spaced apart in the width direction.

The rear side exterior body 20 at least includes a rear side sheet 21 and a rear side elastic member 22 as shown in FIG. The back side sheet 21 is made of non-woven fabric and is laminated in at least two layers. The rear elastic member 22 is disposed between the rear sheets 21 and is stretchable in the width direction. As shown in FIG. 2, the front exterior body 30 has at least a front sheet 31 and a front elastic member 32. The front sheet 31 is made of non-woven fabric and is laminated in at least two layers. The front elastic member 32 is disposed between the front sheets 31 and is extensible and contractible in the width direction.

In the unfolded state shown in FIG. 2, the rear exterior body 20 and the front exterior body 30 are arranged parallel to each other at intervals in the longitudinal direction, and the absorbability between the rear exterior body 20 and the front exterior body 30 The main body 10 is stretched. The front end edge of the absorbent body is fixed to the front exterior body 30, and the rear end edge of the absorbent body is fixed to the rear exterior body 20. The disposable diaper is folded in half from the state shown in FIG. 2 with the longitudinal center 1 LC of the disposable diaper 1 as a folding base point. In the disposable diaper, the outer edge of the rear exterior body 20, which is the outer edge of the rear area, and the outer edge of the front exterior body 30, which is the outer edge of the front area, are joined in a folded state. Thus, it is formed into a pants-type shown in FIG.

(2) Solid Gather Next, the solid gather 15 will be described in detail. FIG. 3 is a plan view schematically showing the plane of the solid gather 15. As shown in FIG. The three-dimensional gather 15 is a gather that can stand on the wearer's side when worn. The pair of solid gathers 15 is line symmetrical with the center 1WC in the width direction of the disposable diaper as the axis of symmetry. Since the configuration of both solid gathers 15 is the same, one solid gather 15 will be described below. The three-dimensional gather 15 forms a wall rising to the skin side at the outer edge of the absorber 11, prevents lateral leakage of excrement, and covers the outer edge of the absorber 11 inward in the width direction. Form a pocket for containing excrement between.

The three-dimensional gather 15 includes a base end which can not stand up, and a standing part 154 which is contracted in the longitudinal direction by the three-dimensional gather elastic member 155 and can stand on the skin side in the thickness direction with the base end as a fulcrum. The front edge of the solid gather is the front edge of the side seat, and the rear edge of the solid gather is the rear edge of the side seat. The proximal end has a first proximal end 151 and a second proximal end 152. FIG. 4 (a) is a cross-sectional view along the width direction of the disposable diaper based on the line AA in FIG. FIG. 4C is a cross-sectional view along the width direction of the disposable diaper based on the line BB in FIG. FIG. 4 (c) is a cross-sectional view along the width direction of the disposable diaper based on the line CC in FIG. Fig.4 (a) is sectional drawing of a front side area | region, FIG.4 (b) and FIG.4 (c) are sectional drawings of a rear side area | region.

The first proximal end 151 is disposed at both longitudinal end edges of the rising portion 154. The pair of first base ends 151 spaced apart in the longitudinal direction is disposed across the rising portion 154 in the longitudinal direction. One first base end 151 is disposed in the rear exterior body 20, and the other first proximal end 151 is disposed in the front exterior body 30. The first base end 151 of the present embodiment is a portion where the side sheet 14 and the top sheet 12 are joined on the skin side of the absorber. The inner end edge (longitudinal inner end) of each first proximal end portion 151 is a portion serving as the rising base point of the rising portion 154.

The first proximal end 151 is located more inward in the width direction than the second proximal end 152. The inner edge 15 WI of the solid gather 15 is pulled by the first base end 151 and tends to fall inward in the width direction. The width 151W of the first base end portion 151 may be shorter than the full width 154W of the rising portion, or may be the same as the full width 154W of the rising portion. When the width 151W of the first base end portion 151 is the same as the full width 154W of the rising portion, the inner edge of the three-dimensional gather tends to fall more inwardly in the width direction.

The second base end portion 152 is a portion configured to be unable to rise in a region extending outward in the width direction from the rising portion, and is a portion disposed on the non-skin side of the absorber 11. The second proximal end 152 is disposed adjacent to the outer edge of the rising portion 154. In the second base end portion 152, the side sheet 14 and the absorber 11 are joined via the joining portion R2. The outer edge 152 WE of the second base end 152 is a position corresponding to the outer edge of the absorber 11 and is a portion that becomes the rising base point of the rising portion 154.

In addition, the side sheet 14 and the top sheet 12 may be joined via the joining portion R2 in a region outside the widthwise direction of the upstanding portion. In the configuration in which the bonding portion is positioned on the skin side of the absorber, the bonding portion constitutes the second base end. The second base end 152 may be located outside the absorber 11 in the width direction, or may overlap the absorber 11.

Moreover, the side sheet 14 is extended in the width direction outer side rather than the outer side edge of an absorber, and is laminated | stacked by the part extended in the said width direction outer side. Thus, since the side sheet is folded on the outer side in the width direction than the outer edge of the absorber, the size in the width direction of the solid gather can be formed large. Moreover, since the side sheet is folded on the outer side in the width direction than the outer edge of the absorber, the area covering the skin side of the absorber can be reduced by the side sheet, and the absorption performance can be easily maintained.

The upstanding portion 154 is located inward in the longitudinal direction than the first base end portion 151 and inward in the width direction than the second base end portion 152. The upright portion 154 includes the inner edge (inner edge of the side sheet 14) 15IE of the solid gather 15. The standing portion 154 is a portion where the side sheet 14 is not fixed to the top sheet or the like, and is a portion configured to be able to stand on the skin side. The length in the width direction of the rising portion is the maximum height at which the solid gather can rise, which is the distance between the second base end and the inner edge of the solid gather. The distance between the second base end and the inner edge of the solid gather is such that the solid gather is expanded outward in the width direction from the outer edge of the second base end and is extended until the eyelid of the solid gather is not visible The distance between the outer edge of the second proximal end and the inner edge of the solid gather.

The standing portion 154 has a joint portion 153 in which side sheets as sheet materials are joined. The joint portion 153 is a portion where the side sheets 14 are joined and the length in the width direction of the rising portion is narrowed. The length in the width direction of the rising portion 154 is the length along the width direction W of the rising portion 154 in the stretched state shown in FIG. 3 (the distance between the second base end 152 and the inner edge of the solid gather 15). As shown in FIG. 4, the rising portion 154 is contracted and the rising height of the rising portion 154 is in the state of rising to the wearer side.

The bonding portion 153 is a portion bonded by, for example, an adhesive, heat welding, or ultrasonic welding. FIG. 4B is a cross-sectional view of a region where the bonding portion 153 is provided. The bonding portion 153 is a portion which is folded at a fold point FL1 extending in the longitudinal direction as a base point, and the side sheets 14 overlapping each other are bonded to each other. As shown in FIG. 4 (b), the joint portion 153 is disposed outside the space between the solid gather 15 and the absorber 11. The distance between the second base end 152 and the inner edge of the solid gather 15 in the region where the joint 153 is provided is the distance between the second base 152 and the inner edge of the solid gather 15 in the region where the joint 153 is not provided. Short compared to the distance. Therefore, in the area | region in which the junction part 153 was provided, the height of a solid gather can be restrained. The standing portion in the cross section shown in FIG. 4 (b) is in a lying state than the standing portion in the cross section shown in FIG. 4 (a) and the standing portion in the cross section shown in FIG. 4 (c). There is.

Since the distance between the second base end 152 and the inner edge of the solid gather 15 is relatively short, the tension between the solid gather elastic member 155 and the second base end 152 and the solid gather elastic member 155 and the first base The tension between the end 151 and the end 151 is easily maintained, and the inner edge of the solid gather 15 does not easily expand as it falls to the outside in the width direction when worn. Therefore, it becomes easy to provide the stool pocket by solid gathers 15, and can control the leak of excrement.

The joint 153 is arranged at least in the rear area 2. Since the joint portion 153 is disposed in the rear area 2, it is easy to form a pocket for containing stool in the rear area 2. It becomes difficult for the stool to touch the wearer's skin, and the wearing feeling can be improved. In addition, the junction part 153 of this Embodiment is straddling the center of the longitudinal direction of a disposable diaper. That is, the joint portion 153 is disposed in both the front area 3 and the rear area 2. Since the joint portion 153 is disposed in both the front side region 3 and the rear side region 2, it is easy to form a pocket for containing excrement in both the front side region 3 and the rear side region 2.

The raised portion 154 located at the center in the longitudinal direction of the disposable diaper is suppressed in height, and can be more effectively suppressed from falling outside in the width direction. FIG. 5 is a schematic cross-sectional view of a mounted state in a cross section based on the XX line shown in FIG. Fig.5 (a) has shown the disposable diaper which concerns on the comparative example which does not have a junction part, and FIG.5 (b) has shown the disposable diaper which concerns on embodiment which has a junction part. The part enclosed with a dashed-two dotted line in FIG.5 (b) is a part by which the height was suppressed by the junction part. The height of the three-dimensional gather can be reduced at the longitudinal center of the disposable diaper by arranging the joint portion across the longitudinal center of the disposable diaper. Since the height of the solid gather at the center in the longitudinal direction of the disposable diaper is relatively low, it prevents the inner edge of the solid gather from invading inward in the width direction, and makes it easy to arrange so as to cover the crotch of the wearer.

In addition, the joint portion 153 is disposed across the longitudinal center of the disposable diaper, so that the standing portion 154 located at the longitudinal center of the disposable diaper has a short distance to the second base end portion 152, and the width Pulled out of the direction. Therefore, the tension of the solid gathers elastic member 155 located at the longitudinal center of the disposable diaper can easily maintain a high state. The standing portion 154 located at the center in the longitudinal direction of the disposable diaper is easily pulled by the first base end portion 151 and maintained in the state of being fallen inward in the width direction. In addition, the upright portion 154 located at the longitudinal center of the disposable diaper is pulled by the second base end 152 and pulled outward in the width direction. Therefore, it is easy to maintain the state where the solid gather 15 stood up to the wearer side, and the space between the left and right solid gathers 15 can be widely provided.

The length L1 in the longitudinal direction of the solid gather in the rear region 2 is shorter than the length L2 in the longitudinal direction of the solid gather 15 in the front region 3. According to such a configuration, the solid gather in the rear region 2 is more likely to exhibit the effect of tilting inward in the width direction by the first base end portion 151 compared to the front region 3. The standing portion in the cross section shown in FIG. 4C is in a state of lying down than the rising portion in the cross section shown in FIG. 4A, and the height is suppressed.

The front end edge of the joint portion 153 is separated from the first base end 151 located in the front side area 3, and is located rearward of the first base end 151 located in the front side area 3. The distance between the second base end 152 and the inner edge of the solid gather 15 is relatively long between the first base end 151 and the joint 153 located in the front region 3. In the area | region where the junction part 153 is not provided, the pocket by the solid gathers 15 can be formed large, and the accommodation space of a pocket can be ensured widely. The rear end edge of the joint portion 153 is separated from the first base end 151 located in the rear area 2 and is located forward of the first base end 151 located in the rear area 2. The distance between the second base end 152 and the inner edge of the solid gather 15 is relatively long between the first base end 151 and the joint 153 located in the rear region 2. In the area | region where the junction part 153 is not provided, the pocket by the solid gathers 15 can be formed large, and the accommodation space of a pocket can be ensured widely.

The length L 3 in the longitudinal direction of the bonding portion 153 is longer than the distance L 6 between the bonding portion 153 and the first base end portion 151 located in the rear region 2, and the first base located in the bonding portion 153 and the front region 3 It is shorter than the distance L7 with the end 151.

The length L4 of the longitudinal direction L of the joint 153 of the rear region 2 is longer than the length L5 of the longitudinal direction L of the joint 153 of the front region 3. The length of the joint portion 153 located in the rear region 2 is the distance between the rear end edge of the joint portion 153 and the longitudinal center of the disposable diaper. The length of the joint 153 located in the front area 3 is the distance between the front end edge of the joint 153 and the longitudinal center of the disposable diaper. Since the length of the bonding portion 153 located in the rear region 2 is longer than the length of the bonding portion 153 located in the front region 3, the height of the solid gathers 15 in the rear region 2 is effectively increased too much. It is possible to suppress the falling of the solid gather 15 due to the inner edge of the solid gather 15 rising too much.

A distance L6 between the first base end 151 located in the rear side area 2 and the rear end edge of the joint 153 is a distance L7 between the first base end 151 located in the front side area 3 and the front end edge of the joint 153 Less than. The joint 153 in the rear region 2 is closer to the first base end 151 than the joint 153 in the front region 3. By suppressing the height of the solid gathers 15, the effect of the solid gathers 15 falling inward in the width direction can be more easily exhibited in the rear region 2.

The ratio of the length L4 of the bonding portion 153 to the length L8 of the rising portion 154 in the rear region 2 is higher than the ratio of the length L5 of the bonding portion 153 to the length L9 of the rising portion 154 in the front region 3. The length L 8 of the rising portion 154 in the rear region 2 is the distance between the first base end portion 151 located in the rear region 2 and the center of the disposable diaper in the longitudinal direction, and rising in the rear region 2 It is the length of the possible area. Similarly, the length of the rising portion 154 in the front side region 3 is the distance between the first base end 151 located in the front side region 3 and the center of the disposable diaper in the longitudinal direction, and can rise in the front side region 3 It is the length of the area.

The ratio of the area in which the bonding portion 153 is disposed in the rising portion 154 of the rear region 2 is higher than the ratio of the area in which the bonding portion 153 is disposed in the rising portion 154 in the front region 3. Therefore, the ratio of the area | region which tends to become comparatively low in the back side area | region 2 is large, and it becomes easy to suppress the height of the standing part 154. FIG. It can suppress effectively that the height of the solid gathers 15 of the back side area | region 2 becomes high too much, and it can suppress more the fall of the solid gathers 15 by the inner edge of the solid gathers 15 rising too much. Therefore, the space between the left and right solid gathers 15 can be widely provided in the rear area.

On the other hand, in the front side area 3, the height of the solid gather 15 can be secured compared to the rear side area 2. The excrement excreted in the front area 3 is mainly urine and has high fluidity. When it can not be absorbed immediately at the time of a large amount of urination, a relatively high solid gather can function as a breakwater, and the leakage of excrement in the front side region 3 can be suppressed.

In addition, the ratio of the length in the longitudinal direction of the bonding portion of the solid gathers to the region where the bonding portion is not provided (the distance between the first base end portion and the bonding portion) satisfies the following

Equations

1 and 2 desirable. By satisfying Formula 1, it is possible to cover the absorber by the three-dimensional gather while providing a space between the three-dimensional gather and the absorber in the rear region. Further, by satisfying the formula 2, it is possible to make the three-dimensional gather easy to launch.
(Formula 1)
(Longitudinal length L10 of first base end located in rear side area + longitudinal length L4 of joint of rear side area)> distance L6 between first base end of rear side area and joint > (The longitudinal length L10 of the first base end portion located in the rear region + the longitudinal length L4 of the joint in the rear region) / 2
(Formula 2)
Distance L7 between the first base end of the front side area and the joint portion> (longitudinal length L11 of first base end located in the front side area + longitudinal length L5 of the joint front side area)

The three-dimensional gather elastic member 155 is comprised with thread rubber, and the four-dimensional gather elastic member 155 is arrange | positioned four each for three-dimensional gathers 15 on either side. The three-dimensional gather elastic member 155 is extensible and contractible in the longitudinal direction, and is spaced apart in the width direction. FIG. 6 is a view schematically showing a cross section along the width direction of the region where the three-dimensional gather elastic member is provided. Fig. 6 (a) shows a comparative example in which there is one solid gather elastic member, and Fig. 6 (b) shows a solid gather according to the embodiment.

By arranging the plurality of solid gathers elastic members 155 at a distance in the width direction, a portion contracted by the solid gathers elastic member 155 has a certain length in the width direction and has a planar shape. More specifically, by having the plurality of solid gather elastic members 155, the entire region where the plurality of solid gather elastic members 155 is disposed is contracted in the longitudinal direction, and the entire region where the plurality of solid gather elastic members 155 is disposed is The portion which is pushed up to the wearer side and contracted by the solid gather elastic member 155 is formed in a planar shape. Since the portion contracted by the three-dimensional gather elastic member 155 is planar, it is easy to secure the length in the width direction of the stool pocket. In addition, since the portion shrunk by the solid gather elastic member 155 is planar, it is possible to reduce the contact with the skin as compared with the configuration in which one solid gather elastic member 155 contracts.

The inner elastic member 1551 located at the innermost side in the width direction in the solid gather elastic member 155 is located at the inner edge of the solid gather 15. The extension ratio of the inner elastic member 1551 is higher than the extension ratio of the solid gather elastic member 155 positioned outside the inner elastic member 1551 in the width direction. The inner elastic member 1551 has a longer distance to the second base end 152 and is less likely to be pulled by the second base end 152, as compared to other elastic members constituting the three-dimensional gather elastic member 155. However, since the extension rate of the inner elastic member 1551 is higher than the extension rate of the other three-dimensional gather elastic member 155, the deflection of the inner elastic member 1551 is suppressed, and it becomes easier to form the feces pocket.

(3) Absorber Next, the absorber 11 will be described in detail. The absorber 11 is provided with a pair of lines 18. The line 18 may be formed only on the absorbent core 11a, or may be formed on both the absorbent core 11a and the core wrap 11b. The lines 18 are provided in a pair on both sides in the width direction of the absorber 11. The line 18 is axisymmetrical with the center 1WC in the width direction of the disposable diaper as the axis of symmetry. Since the configuration of both lines 18 is similar, one line will be described below.

In the line 18, a depression is provided on the skin side of the absorber, and a squeezed portion is provided on the non-skin side of the depression. The lines are in particular formed by embossing. As shown in FIG. 2, the line 18 has a first convex apex 181, a second convex apex 182, a third convex apex 183, a rear side line 184, a front side line 185, and a center line 186. . The first convex apex portion 181 is an apex portion projecting inward in the width direction. The first convex portion 181 is located between the back side line 184 and the center line 186, and is located rearward of the longitudinal center of the disposable diaper or the longitudinal center of the disposable diaper. A joint portion 153 is provided on a straight line passing through the first convex portion 181 and extending in the width direction. In a region extending rearward from the first convex portion 181, the absorber 11 is deformed with the rear line 184 as a base point, and has a shape that widely covers the ridge. Since the joint portion 153 is provided in the area that covers the buttocks widely, the three-dimensional gather 15 can be easily erected in the area covering the buttocks, and leakage of excrement can be suppressed.

The rear side line 184 extends rearward from the first convex apex 181 starting from the first convex apex 181. The end point (rear end edge) of the back side line 184 coincides with the outer edge of the absorbent core. The rear end edge of the rear side line 184 is located on the front side of the rear exterior body. The rear side line 184 extends from the longitudinal center side to the rear side of the disposable diaper and extends from the widthwise inside to the widthwise outside. The outer edge of the back line is located at the outer edge of the absorbent core. The back side line 184 extends from the longitudinal center side to the back side of the disposable diaper and extends from the inside in the width direction to the outside in the width direction. In addition, it plays a role like a bracing rod, and it is possible to suppress the absorbent body 11 from being deformed inward in the width direction. Therefore, the absorber 11 is easily disposed along the bulge of the buttocks of the wearer. Since the absorber 11 is arranged to cover the bulge of the buttocks, the solid gather 15 can be easily arranged along the bulge of the buttocks, and the solid gather 15 can be disposed at a more appropriate position. It can prevent leakage.

Moreover, the shape of planar view of the back side line 184 is a curvilinear shape curved to the straight line extended to the back side of the disposable diaper in the outer side and the longitudinal direction in the width direction starting from the 1st convex top part 181, and an outer side. Since it extends to the outer side and the rear side in the width direction, it extends outward in the width direction so as to cover the bulge of the buttocks from the crotch to the buttocks side of the wearer. Therefore, the absorber 11 is easily disposed along the bulge of the buttocks of the wearer. Since the absorber 11 is arranged to cover the bulge of the buttocks, the three-dimensional gather 15 is also easily arranged along the bulge of the buttocks, and the three-dimensional gather 15 can be disposed at a more appropriate position. It can prevent leakage.

The second convex apex portion 182 is an apex portion projecting inward in the width direction. The second convex portion 182 is located between the front line 185 and the center line 186, and is located forward of the longitudinal center of the disposable diaper. The inner edge of the second convex portion 182 is located outside the inner edge of the first convex portion 181 in the width direction. The second convex portion 182 is located rearward of the front exterior body.

The front side line 185 extends from the second convex apex 182 to the front side, starting from the second convex apex 182. The end point (front edge) of the front line 185 coincides with the outer edge of the absorbent core. The front end edge of the front side line 185 is located in an area overlapping the front exterior body. The front side line 185 extends from the longitudinal center side of the disposable diaper to the front side, and from the inside in the width direction to the outside in the width direction. The outer edge of the front line 185 is located outside in the width direction than the outer edge of the rear line 184.

The third convex apex portion 183 is an apex portion projecting inward in the width direction. The third convex portion 183 is located between the first convex portion 181 and the second convex portion 182, and is positioned forward of the longitudinal center of the disposable diaper. The inner edge of the third convex portion 183 is located outside the inner edge of the first convex portion 181 in the width direction. Therefore, the width of the absorber 11 is the narrowest at the portion where the first convex portion 181 is located in the longitudinal direction.

The center line 186 is a line connecting the front line 185 and the back line 184. The third convex apex 183 is located at the longitudinal central portion of the central line 186. The central line 186 is a line convex outward in the width direction between the first convex apex 181 and the third convex apex 183, and an outer side in the widthwise direction between the second convex apex 182 and the third convex apex 183. And a convex line toward the

At the outer edge of the absorbent body 11, a notch 187 is provided. The notch 187 has a first notch 1871, a second notch 1872, and a third notch 1873. The position of the first notch 1871 corresponds to the position of the first convex portion 181 in the longitudinal direction. The position of the second notch 1872 corresponds to the position of the second convex portion 182 in the longitudinal direction. The position of the third notch 1873 corresponds to the position of the third convex portion 183 in the longitudinal direction.

The absorber 11 in the rear region 2 has a high rigidity portion 19. The high rigidity portion 19 is a portion higher in rigidity than the absorber located at the longitudinal center 1 LC of the disposable diaper. The rigidity indicates the deformability of the absorber. Specifically, for example, the high rigidity portion 19 is a portion whose width is longer than the width of the absorbent body 11 located at the longitudinal center 1LC of the disposable diaper, the absorbent body 11 located at the longitudinal center 1LC of the disposable diaper The portion having a higher basis weight than the absorbent body 11 located at the longitudinal center 1LC of the disposable diaper is different from the shape of the line and the portion having high rigidity.

When the rear side area 2 has the high rigidity portion 19, the left and right solid gathers 15 in the rear side area 2 do not easily enter inside in the width direction. Since it is difficult for the left and right solid gathers 15 to enter inside in the width direction, the solid gathers 15 can be disposed at an appropriate position so as to cover the bulge of the buttocks. Since it is difficult for the left and right solid gathers 15 to enter inside in the width direction, it is possible to prevent the inner edge of the solid gather 15 from falling down to the outside in the width direction when the solid gather 15 enters inside. The solid gathers 15 can be provided at suitable positions in the width direction, and the solid gathers 15 can suppress stool leakage.

The width of the absorbent core 11a in the back region is longer than the width of the absorbent core 11a located at the longitudinal center 1LC of the disposable diaper. Further, the rigidity of the absorber 11 in the rear region 2 may be higher than the rigidity of the absorber 11 in the front region 3. The width of the absorbent core 11a in the rear region may be longer than the width of the absorbent core 11a in the front region. Specifically, the width W2 of the absorbent core in the rear area shown in FIG. 4 (b) and the width W3 of the absorbent core in the rear area shown in FIG. 4 (c) are the rear area shown in FIG. Longer than the width W1 of the absorbent core. Accordingly, the rigidity of the absorbent core 11a in the rear region is higher than the rigidity of the absorbent core 11a in the front region. Further, the width W3 of the absorbent core in the rear region shown in FIG. 4 (c) is longer than the width W2 of the absorbent core in the rear region shown in FIG. 4 (b). The width of the absorbent core 11 a in the rear region 2 is longer toward the rear.

The high rigidity part 19 of the back side area 2 of the present embodiment is an area having a width wider than the width of the absorber 11 located at the longitudinal center 1 LC of the disposable diaper and having the back side line 184. In FIG. 2, the high rigidity portion 19 is indicated by hatching. The front end edge of the high rigidity portion 19 is located rearward of the longitudinal center of the disposable diaper and is located forward of the rear end edge of the joint portion 153. The rear end edge of the high rigidity portion 19 is positioned forward of the rear exterior body and is positioned rearward of the rear end edge of the joint portion 153.

The high rigidity portion 19 is wider than the width of the absorbent body 11 located at the longitudinal center 1LC of the disposable diaper, so it is difficult to be deformed when a force is applied from the outside in the width direction toward the inside in the width direction. Also, the width of the rear line 184 of the rear region 2 is longer than the width of the central line 186 located at the longitudinal center 1 LC of the disposable diaper. Therefore, the rear region 2 is not easily deformed when a force is applied from the width direction outer side toward the width direction inner side. The high rigidity portion 19 has a relatively wide width of the absorber 11 and a relatively wide width of a line extending outward in the width direction, so it is more difficult to deform when a force is applied from the outside in the width direction toward the inside in the width direction.

The high rigidity portion 19 may be configured to be higher than the rigidity in at least a partial region of the front region 3. The rigidity of the absorber in the rear region is higher than the rigidity of the absorber in the front region, so that it is possible to suppress the width of the solid gather in the rear region in particular and the leakage of the excrement is effective by the pockets containing feces Can be suppressed. Further, the high rigidity portion 19 may be disposed in the entire rear region 2 or may be disposed in a part of the rear region 2. Moreover, the high rigid part whose rigidity is higher than the absorber 11 located in the center 1LC of the longitudinal direction of a disposable diaper may be provided in the front side area | region 3. As shown in FIG. Also in the front region 3, when a force is applied from the outside in the width direction toward the inside in the width direction, deformation does not occur easily, and the solid gather can be provided at a suitable position in the width direction.

The rigidity of the absorber 11 can be measured by the following method. An absorber of size 18 mm × 40 mm is used as a test sample. Measure using a digital force gauge stand (FGP-5 manufactured by Nidec-Shimpo Co., Ltd.). The tip of the measurement adapter is straight. Place the test sample on the measurement table of the digital force gauge stand. At this time, the test sample is disposed so that the tip of the measurement adapter of the digital force gauge is parallel to the side of 18 mm and the tip of the measurement adapter is located at the center of the test sample. Push the test sample into the measuring adapter. The pressing speed is 1.5 mm / s. The maximum strength when pressed in is taken as the stiffness value.

Moreover, the high rigidity part 19 in the structure by which the line (central line) is not provided in the absorber 11 located in center 1LC of the longitudinal direction of a disposable diaper is more than absorber 11 located in center 1LC of the longitudinal direction of a disposable diaper. The length in the width direction may be a long portion. The high rigidity portion 19 may be configured so as not to be easily deformed when a force directed from the width direction outer side to the width direction inner side is applied to the absorbent body 11 located at the longitudinal center 1LC of the disposable diaper.

(4) Other Embodiments The joint portion may not be disposed across the longitudinal center of the disposable diaper, and may be disposed at least in the rear region. The shape in plan view of the joint portion is not limited to a rectangle extending in the longitudinal direction, but may be in the form of points spaced in the longitudinal direction. By forming the junctions in a dot shape, the accommodation space by the three-dimensional gathers can be widely formed in the region between the junctions, and the accommodation space for excrement can be widely provided.

Although the present invention has been described above in detail using the above embodiments, it is obvious for those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be embodied as modifications and alterations without departing from the spirit and scope of the present invention defined by the description of the claims. Accordingly, the description in the present specification is for the purpose of illustration and does not have any limiting meaning on the present invention.

The entire contents of Japanese Patent Application No. 2016-35664 dated February 26, 2016, which is the basis of the priority claim of the present application, are incorporated herein by reference.

According to the present disclosure, it is possible to provide an absorbent article that improves the fit of the wearer's buttocks and suppresses leakage of excrement.

1: Disposable diaper 2: Back side area 3: Front side area 11: Absorbent 14: Side sheet (sheet material)
15: solid gather 151: first base end 152: second base end 153: joint 154: rising portion 155: solid gather elastic member 1551: inner elastic member 18: line 181: first convex top portion 182: second Convex apex 183: Third convex apex 184: Rear line 185: Front line 186: Center line 19: High rigidity 1871: First notch 1872: Second notch 1873: Third notch L: Longitudinal direction T: Thickness direction T1: skin side T2: non-skin side W: width direction

Claims

A longitudinal direction, a width direction orthogonal to the longitudinal direction, and a thickness direction,
A front area located forward of the longitudinal center of the disposable diaper, and a rear area located rearward of the longitudinal center of the disposable diaper;
An absorber disposed across the front area and the rear area;
What is claimed is: 1. A disposable diaper comprising: a sheet member and an elastic member, and a pair of solid gathers disposed on both outer sides in the width direction than the center in the width direction of the disposable diaper.
Said solid gather is
A proximal end portion which can not stand up, and an upright portion which is contracted in the longitudinal direction by the elastic member and can stand on the skin side in the thickness direction with the proximal end portion as a fulcrum;
The proximal end is a first proximal end disposed at both longitudinal outer edges of the upstanding portion;
And a second base end disposed at the outer edge in the width direction of the rising portion,
The rising portion includes a bonding portion that joins the sheet members and narrows the length in the width direction of the rising portion.
The junction is disposed in the rear region,
The disposable diaper, wherein the absorbent body in the rear region has a high rigidity portion that is higher in rigidity than the absorbent body located at the center in the longitudinal direction of the disposable diaper.
The disposable diaper according to claim 1, wherein the first base end portion located in the rear area and the joint portion are separated.
The junction is located in the front area,
The ratio of the longitudinal length of the joint to the longitudinal length of the raised portion in the rear area is the ratio of the longitudinal length of the joint to the length of the raised portion in the front side The disposable diaper according to claim 1 or 2, which is higher than the other.
The joint portion straddles the center of the disposable diaper in the longitudinal direction and is separated from each of the first base end portions,
The distance between the first base end located in the rear side area and the rear end edge of the joint is greater than the distance between the first base end located in the front side area and the front end edge of the joint The disposable diaper according to any one of claims 1 to 3, which is short.
A plurality of the elastic members are arranged at a distance in the width direction,
The elongation rate of the inner side elastic member located in the width direction inner side is higher than the elongation rate of the elastic member located in the width direction outer side rather than the said inner side elastic member. Disposable diapers.
A pair of lines are provided on both sides of the absorber in the width direction,
In the line, a depression is provided on the skin side of the absorber, and a squeezed part is provided on the non-skin side of the depression,
The pair of lines is
An inward protruding convex portion in the width direction;
The straight line extending to the outside in the width direction and the back side from the convex top as a starting point, or the curved back side line curved to the outside in the width direction. Description disposable diaper.