CN114555021A

CN114555021A - Absorbent article

Info

Publication number: CN114555021A
Application number: CN202080072212.4A
Authority: CN
Inventors: 吉冈稔泰; 深泽润
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2019-11-11
Filing date: 2020-11-04
Publication date: 2022-05-27
Anticipated expiration: 2040-11-04
Also published as: JP7217219B2; JP2021074356A; WO2021095611A1; CN114555021B

Abstract

Provided is an absorbent article (1) which can suppress leakage of excrement due to sagging of the crotch region. The absorbent article has: an absorbent main body extending from the crotch region in the front-back direction at least to the No. 1 waistline region; and a waist elastic member (55) disposed in the waist region in an extended state in the width direction. The waist elastic member has: a continuous elastic member (55C) that continuously extends from one outer side portion of the first waistline region to the other outer side portion in the width direction; and a discontinuous elastic member (55N) that does not continuously extend in the width direction at least at the center in the width direction of the 1 st waistline region. The leg side gather (80) has: a rising section (82) that can rise by contraction of a leg-side elastic member disposed on the leg side sheet in a state of being elongated in the front-rear direction; and a front-rear fixing portion (811) that fixes the leg side sheet (47) that is disposed at a position that is further outward in the width direction than the center in the width direction of the absorbent core, at a position that is further outward in the front-rear direction than the rising portion. The continuous elastic member has an inner continuous elastic member (55CI) disposed at a position further inward in the front-rear direction than the front-rear direction inner end edge of the front-rear fixing portion.

Description

Absorbent article

Technical Field

The present invention relates to an absorbent article.

Background

An absorbent article having an absorbent core and a waist elastic member disposed in a waist region in a state of being stretched in a width direction has been conventionally known (for example, see patent document 1).

The waist elastic member has a continuous elastic member and a discontinuous elastic member. The continuous elastic member extends continuously in the width direction from one outer side portion to the other outer side portion of the waistline region. The discontinuous elastic member does not extend continuously in the width direction at least in a region overlapping with the absorbent core in the thickness direction.

The waist region is fitted to the body of the wearer by contraction of the continuous elastic member and the discontinuous elastic member, thereby suppressing the waist region from shifting toward the crotch side. On the other hand, in the region where the discontinuous elastic member does not continuously extend in the width direction, since the contraction force of the waist elastic member is reduced, it is possible to suppress the absorbent core from contracting in the width direction. Thereby ensuring the absorption area of the absorbent core and suppressing the leakage of excrement from the waist opening side.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2013-123447

Disclosure of Invention

The absorbent article of patent document 1 has leg side gathers that can rise toward the skin surface side. By the standing of the leg side gathers, the excrement spreading in the width direction on the absorbent body can be received in the lower crotch region, and the side leakage of the excrement can be suppressed.

However, in the region where the contraction force of the waist elastic member is reduced, the force for urging the absorbent article toward the body side is weak, and therefore the waistline region is easily separated from the body to cause a gap. There is therefore a problem that: the excrement spreading toward the waistline region side in the absorbent body spreads in the width direction, and side leakage is likely to occur.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an absorbent article having a continuous elastic member and a discontinuous elastic member in a waistline region, in which leakage of excrement due to sagging of a crotch region can be suppressed.

An absorbent article according to one aspect has: a front-back direction, a thickness direction, and a width direction orthogonal to the front-back direction; a waistline region composed of a 1 st waistline region and a 2 nd waistline region; and a crotch region sandwiched by the 1 st waistline region and the 2 nd waistline region in the front-back direction; an absorbent main body extending from the crotch region in the front-back direction at least to the 1 st waistline region; and a waist elastic member disposed in the waistline region in an elongated state in the width direction. The waist elastic member has: a continuous elastic member continuously extending from one outer side portion to the other outer side portion in the width direction of the 1 st waistline region; and a discontinuous elastic member that does not continuously extend in the width direction at least at the center in the width direction of the 1 st waistline region. The absorbent main body has an absorbent core containing the absorbent material and leg gathers that can rise toward the skin surface side. The leg side gather has: a rising portion that can rise by contraction of a leg-side elastic member disposed in an extended state in the front-rear direction; and a front-rear fixing portion that fixes the leg side sheet, which is disposed on the outer side in the width direction than the center in the width direction of the absorbent core, on the outer side in the front-rear direction than the rising portion. The continuous elastic member has an inner continuous elastic member disposed inward in the front-rear direction from the inner end edge in the front-rear direction of the front-rear fixing portion.

Drawings

Fig. 1 is a schematic front view of the absorbent article of the present embodiment.

Fig. 2 is a schematic plan view of the absorbent article of the present embodiment.

Fig. 3 is a schematic cross-sectional view of the absorbent article along the line F3-F3 in fig. 2.

Fig. 4 is a schematic sectional view of the absorbent article taken along the line F4-F4 in fig. 2.

Fig. 5 is a schematic plan view for explaining the leg gathers.

Fig. 6 is a schematic plan view for explaining a leg side gather.

Fig. 7 is a schematic cross-sectional view of the absorbent article in the front-rear direction.

Fig. 8 is a view for explaining a leg gather.

Fig. 9 is a view for explaining a leg side gather.

Detailed Description

(1) Brief description of the embodiments

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

An absorbent article according to one aspect has: a front-back direction, a thickness direction, and a width direction orthogonal to the front-back direction; a waistline region composed of a 1 st waistline region and a 2 nd waistline region; and a crotch region sandwiched by the 1 st waistline region and the 2 nd waistline region in the front-rear direction; an absorbent main body extending from the crotch region in the front-back direction at least to the 1 st waistline region; and a waist elastic member disposed in the waistline region in an elongated state in the width direction. The waist elastic member has: a continuous elastic member continuously extending from one outer side portion to the other outer side portion in the width direction of the 1 st waistline region; and a discontinuous elastic member that does not continuously extend in the width direction at least at the center in the width direction of the 1 st waistline region. The absorbent main body has an absorbent core containing the absorbent material and leg side gathers capable of standing up to the skin surface side. The leg side gather has: a rising portion that can rise by contraction of a leg-side elastic member disposed in an extended state in the front-rear direction; and a front-rear fixing portion that fixes the leg side sheet, which is disposed on the outer side in the width direction than the center in the width direction of the absorbent core, on the outer side in the front-rear direction than the rising portion. The continuous elastic member has an inner continuous elastic member disposed inward in the front-rear direction from the inner end edge in the front-rear direction of the front-rear fixing portion.

The region where the continuous elastic member is disposed in the 1 st waistline region is brought into close contact with the body of the wearer by contraction of the continuous elastic member. Here, since the inner continuous elastic member is disposed at the inner side in the front-rear direction than the inner end edge of the front-rear fixed portion, the rising portion located at the inner side in the front-rear direction than the front-rear fixed portion and the inner continuous elastic member overlap in the thickness direction. Therefore, the rising portion can be brought into close contact with the body at the position where the rising portion and the inner continuous elastic member overlap. This prevents the excrement from reaching the position on the outer side in the front-rear direction of the rising portion, and prevents the excrement from spreading in the width direction from the position on the outer side in the front-rear direction of the rising portion. On the other hand, at a position further to the front-rear direction inner side than the position where the rising portion and the inner continuous elastic member overlap, the rising portion can rise with the overlapping position as a base point by contraction of the leg-side elastic member, and therefore, the excrement spreading in the width direction on the absorbent body can be received. According to the above, leakage of excrement spreading in the absorber from the crotch region to the outside in the front-back direction (the 1 st waistline region side) can be suppressed.

According to a preferable aspect, the inner continuous elastic member may be constituted by a plurality of elastic members adjacent in the front-rear direction. This enables the rising portion to be closely fitted to the body in a planar manner, and the rising portion can be firmly fixed at a position where the rising portion and the inner continuous elastic member overlap each other. Therefore, the excrement can be prevented from reaching the position outside the rising portion in the front-rear direction. As a result, the excrement can be prevented from spreading in the width direction from a position outside the rising portion in the front-rear direction.

According to a preferable aspect, the inner continuous elastic member may be constituted by all the continuous elastic members overlapping with the absorbent core in the thickness direction. This makes it possible to closely attach the absorbent core to the body of the wearer by contraction of the inner continuous elastic member, and to prevent the bodily waste from reaching a position further to the outside in the front-rear direction than the absorbent core. Further, since the inner continuous elastic member is disposed at the inner side in the front-rear direction than the inner end edge of the front-rear fixed portion, it is possible to further prevent the excrement from reaching the outer side in the front-rear direction than the rising portion. As a result, the excrement can be prevented from spreading in the width direction from a position further to the outside in the front-rear direction than the rising portion.

According to a preferable aspect, the contraction force of the inner continuous elastic member may be maximized in the waist elastic member. By increasing the contraction force of the inner continuous elastic member, the rising portion can be brought into close contact with the body. This can prevent the excrement from spreading in the width direction from a position outside the rising portion in the front-rear direction. Further, by bringing the rising portion into close contact with the body, the portion located more inward in the front-rear direction than the overlapping position where the rising portion and the inner continuous elastic member overlap is more likely to be separated from the body. This makes it easy to raise the raised portion with the overlapping position as a base point, and can block the excrement spreading in the width direction on the absorbent body.

According to a preferred aspect, the inner continuous elastic member may have an innermost continuous elastic member disposed at an innermost position in the front-rear direction among the inner continuous elastic members. The contraction force of the innermost continuous elastic member may be the largest in the waist elastic member. The innermost continuous elastic member can be reliably brought into close contact with the body, and the excrement can be prevented from reaching the position further to the outside in the front-rear direction than the innermost continuous elastic member. Further, since the rising portion rises with the position where the rising portion and the innermost continuous elastic member overlap as a base point, the contraction force of the innermost continuous elastic member is maximized, so that the rising portion is easily raised, and the excrement spreading in the width direction on the absorbent body can be received.

According to a preferred aspect, the absorbent article may have an absorbent body including the absorbent core. The absorbent body may have a low basis weight region in which the basis weight of the absorbent material is lower than that of the surroundings. The inner continuous elastic member may overlap with the low area weight region in the thickness direction. Since the stiffness of the low basis weight region is lower than that of the periphery, the contraction force of the inner continuous elastic member is less likely to be hindered by the stiffness of the absorbent body. In particular, since the absorbent material in the low basis weight region has a lower basis weight than the surrounding area, the absorbent body in the low basis weight region is less likely to swell even if the absorbent body absorbs excrement. Therefore, the contraction of the overlapped continuous elastic member after excretion is not easily hindered. Therefore, the region overlapping with the inner continuous elastic member in the thickness direction can be brought closer to the wearer's body by contraction of the inner continuous elastic member. Therefore, the excrement can be prevented from reaching the position further to the front-rear direction outer side than the inner continuous elastic member. In addition, the standing portion is easily raised, and the excrement spreading in the width direction on the absorbent body can be received.

According to a preferable aspect, the absorbent core, the standing portion, and the inner continuous elastic member may overlap in the thickness direction. Accordingly, the rising portion is brought into close contact with the body side by contraction of the inner continuous elastic member, and therefore, the rising portion located inward of the position where the rising portion and the inner continuous elastic member overlap in the thickness direction rises in the front-rear direction with the position as a base point. Since a part of the rising portion serving as a base point of rising is supported by the absorbent core having high rigidity, a part of the rising portion can be stably fixed in position. Therefore, the portion of the rising portion that is located more inward in the front-rear direction than the part of the rising portion can be easily raised.

According to a preferred aspect, the absorbent core may have a compressed portion in which the absorbent core is compressed in the thickness direction. The compressed portion, the raised portion, and the inner continuous elastic member may overlap in the thickness direction. Since a part of the rising portion serving as a rising base point is supported by the compressed portion having a high rigidity in the absorbent core, a part of the rising portion can be stably fixed in position. Therefore, the portion of the rising portion that is located more inward in the front-rear direction than the part of the rising portion can be raised more easily.

According to a preferred aspect, the inner edges of the front and rear fixing portions may be disposed in a region where the discontinuous elastic member does not continuously extend in the width direction. Since the region of the discontinuous elastic member that does not continuously extend in the width direction has a low contraction force in the width direction, the absorbent core is less likely to contract in the width direction, and the front and rear fixing portions are less likely to move inward in the width direction. This ensures a space for receiving excrement in the width direction, and prevents the excrement from spreading beyond the rising portion.

According to a preferred embodiment, the 1 st waistline region may be a front waistline region disposed on the abdominal side of the wearer, and the 2 nd waistline region may be a rear waistline region disposed on the back side of the wearer. The absorbent article may have: a front outer cover disposed in the front waistline region; a rear outer cover disposed in the rear waistline region; and a side joining portion joining an outer side portion in the width direction of the front exterior body and an outer side portion in the width direction of the rear exterior body. In the front waist region, the inner continuous elastic member may be disposed rearward of a front end edge of the side joint section in the front waist region and may be disposed at a distance of 5% to 20% of an entire length of the absorbent article in the front-rear direction from the front end edge. This makes it possible to provide the inner continuous elastic member in the region where the recess of the lower end of the abdomen of the wearer is easily arranged. Since the gap between the wearer and the front outer cover is likely to occur due to the depression in the lower end of the wearer's abdomen, the absorbent core can be easily bent in the front-rear direction along the depression in the lower end of the wearer's abdomen. Therefore, the region in which the inner continuous elastic member is disposed is brought into close contact with the body of the wearer (specifically, the depression at the lower end of the abdomen) by the contraction of the inner continuous elastic member. This prevents the excrement from reaching the position outside the rising portion in the front-rear direction. On the other hand, the absorbent core is relatively easily separated from the body side by bending in the front-rear direction at a position more inward in the front-rear direction than the inner continuous elastic member. Thus, the standing part can stand from the vicinity of the depression at the lower end of the abdomen, and therefore, the excrement spreading in the width direction on the absorbent body can be received.

According to a preferable aspect, the contraction force of the inner continuous elastic member overlapped with the leg side elastic member in the thickness direction may be larger than the contraction force of the leg side elastic member. Thereby, the leg-side elastic member can be firmly fixed at a position where the leg-side elastic member and the inner continuous elastic member overlap in the thickness direction. The rising portion can be reliably raised by the contraction force of the leg-side elastic member.

(2) General structure of absorbent article

The absorbent article of the embodiment is described below 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. It should be noted, however, that the drawings are schematic, and the proportions of the respective dimensions and the like are different from the actual proportions and the like. Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, the drawings may include portions having different dimensional relationships and ratios from each other.

Fig. 1 is a schematic front view of the absorbent article of the present embodiment. Fig. 2 is a schematic plan view of the absorbent article of the present embodiment. The schematic top view shown in fig. 2 shows such an extended state: the absorbent article 1 is extended to a state where no wrinkle is formed in a state where the joining of the side joining portions, which will be described later, is released. Fig. 3 is a schematic cross-sectional view of the absorbent article in the front-rear direction. Specifically, fig. 3 is a schematic sectional view of the absorbent article taken along the line F3-F3 in fig. 2. The lines F3 to F3 are lines along the front-rear direction L passing through the center in the width direction W of the absorbent article. Fig. 4 is a schematic cross-sectional view of an absorbent article in the front-rear direction. Specifically, fig. 4 is a schematic sectional view of the absorbent article taken along the line F4-F4 in fig. 2. The lines F4 to F4 are lines along the leg-side elastic members described later. Fig. 5 is a schematic plan view for explaining the leg gathers. Fig. 6 is a schematic plan view for explaining a leg side gather. Fig. 7 is a schematic cross-sectional view of the absorbent article in the front-rear direction. Specifically, fig. 7A is a schematic top view of the absorbent article taken along line F7-F7 in fig. 2. The lines F7 to F7 are lines along the width direction W passing through the center in the front-rear direction L of the absorbent article. Fig. 7B is a schematic cross-sectional view of the absorbent article for explaining a state in which leg side gathers stand up. Fig. 8 is a diagram for explaining a leg gather. Fig. 8A is a diagram for explaining leg gathers in a conventional absorbent article. Fig. 8B is a diagram for explaining leg gathers in the absorbent article 1 of the embodiment. Fig. 8 shows a lying posture in which the front waistline region S1 is on the upper side and the rear waistline region S2 is on the lower side. In fig. 8, "BL" represents a line of the body of the wearer, and "20L" represents a contour line of the absorbent main body 20. Fig. 9 is a view for explaining a leg side gather. Fig. 9A is a diagram for explaining leg gathers in a conventional absorbent article. Fig. 9B is a diagram for explaining leg gathers in the absorbent article 1 of the embodiment. Note that, for convenience of explanation, there are components whose illustration is omitted. For example, in fig. 5, the leg gathers are mainly described, and therefore, for example, the leg elastic members are not shown. Similarly, in fig. 6, the leg side gathers will be described mainly, and therefore, for example, the leg elastic members are not shown. In addition, it should be noted that even though the respective members are shown to be separated in the thickness direction for convenience of explanation, they are in contact in the thickness direction in an actual product.

The absorbent article 1 is, for example, a pants-type disposable diaper, a belt-type disposable diaper, a pants-type sanitary napkin, or the like. The absorbent article 1 of the embodiment is a pants-type disposable diaper. As shown in fig. 1, the absorbent article 1 has a front-back direction L and a width direction W orthogonal to the front-back direction L. The front-rear direction L is defined by a direction extending to the body front side and the body rear side. In other words, the front-rear direction L is a direction extending in the front-rear direction in the unfolded absorbent article 1. The absorbent article 1 has a thickness direction T orthogonal to both the front-back direction L and the width direction W. The thickness direction T extends toward the skin surface side T1 of the wearer and the non-skin surface side T2 opposite to the skin surface side.

The absorbent article 1 has: a waistline region composed of a 1 st waistline region and a 2 nd waistline region, and a crotch region S3 sandwiched between the 1 st waistline region and the 2 nd waistline region in the front-back direction. In the present embodiment, the 1 st waistline region is a front waistline region S1 disposed on the abdominal side of the wearer. The front waistline region S1 is a region opposed to the front waistline (abdomen) of the wearer. The No. 2 waistline region is a back waistline region S2 disposed on the back side of the wearer. The back waistline region S2 is a region opposing the back waistline (back) of the wearer. The back waistline region S2 includes a region on which the body (buttocks) is placed when worn. The crotch region S3 is a region located in the crotch of the wearer and disposed between the front waistline region S1 and the back waistline region S2.

The absorbent article 1 may have an absorbent main body 20 and an exterior body 50. Therefore, the absorbent main body 20 can be configured separately from the exterior body 50. The absorbent main body 20 is disposed at least in the crotch region S3. The absorbent main body 20 extends from the crotch region S3 in the front-back direction L at least toward the front waistline region S1. Therefore, the absorbent main body 20 may extend over the front waistline region S1, the back waistline region S2, and the crotch region S3. The absorbent main body 20 overlaps the exterior body 50 in the thickness direction T in the front waistline region S1 and the back waistline region S2. The exterior body 50 is disposed at least in the waistline region. The exterior body 50 may be composed of a front exterior body 50A disposed in the front waistline region S1 and a rear exterior body 50B disposed in the rear waistline region S2. The outer package 50 may have a waist elastic member 55 described later.

As shown in fig. 1, the absorbent article 1 may have side joint portions 16, and the side joint portions 16 may join an outer side portion in the width direction W of the front outer cover 50A and an outer side portion in the width direction W of the rear outer cover 50B, which are disposed in the front waist region S1. The side joint portions 16 are defined by portions that lock the outer side portions of the front exterior body 50A and the outer side portions of the rear exterior body 50B to each other. The side joint portions 16 may extend in the front-rear direction L in the front outer package 50A and the rear outer package 50B, respectively. As shown in fig. 1, in the absorbent article 1, a waist opening 17 through which the trunk of the wearer passes and a pair of leg hole openings 18 into which the legs of the wearer are inserted are formed in a state in which the side joint portions 16 are formed. The waist opening 17 may be defined by the front end edge S1F of the front waistline region S1 and the rear end edge S2R of the rear waistline region S2.

In the pant-type absorbent article 1, the crotch region S3 may be defined by the inner end edges of the side joint portions 16 in the front-rear direction L. The boundary between the front waistline region S1 and the crotch region S3 may be defined by the rear end edge 16R of the side joint portions 16 in the front waistline region S1. The boundary between the rear waistline region S2 and the crotch region S3 may be defined by the front end edge 16F of the side joint portion 16 in the rear waistline region S2. Further, the crotch region S3 may be defined by a region where the leg hole openings 18 are provided. The leg hole opening 18 is a portion recessed inward in the width direction W from the outer edge of the absorbent article 1. The boundary between the front waistline region S1 and the crotch region S3 may be defined by the front end edge of the leg hole openings 18. The boundary between the back waistline region S2 and the crotch region S3 may be defined by the rear end edge of the leg hole opening 18.

In addition, the outer side portion in the present specification means a portion occupying a certain range in the width direction W including an outer edge in the width direction W, and the outer side edge means an outer edge in the width direction W. The inner side portion in the present specification means a portion occupying a certain range in the width direction W including an inner edge in the width direction W, and the inner side edge means an inner edge in the width direction W. In the present specification, the front end portion and the rear end portion are portions occupying a certain range in the front-rear direction L including edges in the front-rear direction L, and the front end portion and the rear end portion are edges in the front-rear direction L. The outer end portion includes a front end portion and a rear end portion, and the outer end edge includes a front end edge and a rear end edge.

The absorbent main body 20 may have an absorbent body 30, a topsheet 41, a backsheet 42, and leg-side sheets 47. In the embodiment, the absorbent main body 20 has leg gathers 70 and leg side gathers 80. The absorbent body 30 has at least an absorbent core 31. The absorbent core 31 contains an absorbent material. The absorbent core 31 may for example comprise comminuted pulp or superabsorbent polymer (SAP) or mixtures of the aforementioned materials. As shown in fig. 2, the absorbent core 31 is disposed in the crotch region S3. The absorbent core 31 may be disposed in the front waistline region S1 or in the back waistline region S2. The absorbent core 31 may extend throughout in the front-back direction L from the front waistline region S1 through to the back waistline region S2 as shown in fig. 2, fig. 3, and the like.

The absorbent body 30 may have a core wrap 32 covering the absorbent core 31. The core wrap 32 may cover the absorbent core 31 at least at a position closer to the skin surface side T1 than the absorbent core 31. The absorbent core 31 may sandwich the absorbent core 31 in the thickness direction T. The core cladding 32 may cover the absorbent core 31 with the absorbent core 31 interposed therebetween in the width direction W. The core wrap 32 may not cover a part of the absorbent core 31 (for example, a part of the non-skin surface side T2 of the absorbent core 31). The core wrap 32 may be formed of, for example, tissue paper or nonwoven fabric.

The absorbent body 30 may have a low basis weight region LR in which the basis weight of the absorbent material is lower than that of the surroundings. In the present embodiment, in the low basis weight region LR, the absorbent core 31 is not disposed in the thickness direction T, and the core clad 32 is disposed. Therefore, the absorbent material in the low basis weight region LR has a basis weight of 0. Note that the weight per unit area of the absorbent material is 0, which means that the absorbent core 31 may be substantially absent in the low weight per unit area region LR. A portion of the absorbent core 31 adjacent to the low basis weight region LR in the width direction W may exist by protruding into the low basis weight region LR. Here, "around" means around the low basis weight region LR in the absorber 30, and does not include a region where the absorber 30 is not disposed.

The high basis weight region HR having a higher basis weight than the absorbent material of the low basis weight region LR may be present on both outer sides of the low basis weight region LR in the width direction W. In the present embodiment, the high basis weight region HR is a region where the absorbent core 31 is present. The high basis weight region HR in the front waist region S1 may be the basis weight of the same absorbent material as the region where the absorbent core 31 is present in the crotch region S3. For example, the difference between the basis weight of the absorbent material of the absorbent core 31 in the high basis weight region HR in the front waistline region S1 and the basis weight of the absorbent material of the absorbent core 31 in the crotch region S3 may be 5% or less. The absorbent core 31 may have a compressed portion in which the absorbent core 31 is compressed in the thickness direction T. The compression portions may be provided in the high unit area weight region HR disposed on both outer sides in the width direction W of the low unit area weight region LR. The compressed portions may be, for example, lattice compressed portions having a lattice-like pattern in a plan view of the absorbent core 31.

The top sheet 41 is positioned closer to the skin surface side T1 than the absorber 30. The topsheet 41 is disposed closest to the skin surface side T1 and faces the skin of the wearer. The top sheet 41 may be liquid-permeable, and may be formed of, for example, a nonwoven fabric. As shown in fig. 7, the top sheet 41 may be folded from the skin-surface side T1 to the non-skin-surface side T2 along the surface of the absorbent body 30. The surface sheet 41 may be constituted by a plurality of sheets. In the case where the top sheet 41 is composed of a plurality of sheets, the top sheet 41 may include a sheet disposed only on the skin surface side T1 of the absorbent body 30 and a sheet disposed on the non-skin surface side T2 of the absorbent body 30 in addition to the skin surface side T1 of the absorbent body 30.

The back sheet 42 is positioned on the non-skin surface side T2 with respect to the absorbent body 30. The back sheet 42 may have liquid impermeability, and may be formed of a film, for example. As shown in fig. 7, the back sheet 42 may be disposed on the skin surface side T1 with respect to the leg side sheet 47 in a region overlapping the absorbent body 30 in the thickness direction T. The back sheet 42 may be disposed closest to the non-skin surface side T2.

The leg side sheet 47 is disposed on the outer side in the width direction W than the center in the width direction W of the absorbent core 31. The leg side panels 47 are opposed to the skin of the wearer. The leg side sheet 47 may extend in the width direction W across the center in the width direction W of the absorbent article 1 at a position closer to the non-skin surface side T2 than the absorbent core 31. The leg side sheet 47 may be disposed at a position closer to the non-skin surface side T2 than the back sheet 42 in a region overlapping with the absorbent body 30 in the thickness direction T. The leg side sheet 47 may be made of, for example, nonwoven fabric.

As shown in fig. 7, the leg side sheet 47 may be constituted by one sheet member. The leg side sheets 47 may be folded back to the skin surface side T1 on both outer sides of the absorbent main body 20. Specifically, the leg side sheets 47 may be folded back from the non-skin surface side T2 to the skin surface side T1 along the 1 st fold line FL1 extending in the front-back direction L on both outer sides of the absorbent main body 20. The leg side sheet 47 may have a 1 st section 471, and the 1 st section 471 extends from the center in the width direction W of the absorbent main body 20 to the 1 st fold FL1 in the width direction W at a position closer to the non-skin surface side T2 than the absorbent body 30. The leg side sheets 47 may constitute side end edges of the absorbent main body 20. In addition, the leg side sheet 47 may have a 2 nd portion 472 extending from the 1 st portion 471 to the 2 nd fold FL2 in the width direction W.

The leg-side sheet 47 may be further folded back so as to sandwich the leg-side elastic member 85. Specifically, the leg-side sheet 47 may be folded back from the skin-surface side T1 to the non-skin-surface side T2 along the 2 nd fold line FL2 extending in the front-rear direction L. The leg side panel 47 may have a 3 rd part 473 extending in the width direction W from the 2 nd fold FL2 to the 3 rd fold FL 3. The leg side sheet 47 may be folded back so as to sandwich a front-rear fixing portion 811, which will be described later. Specifically, the leg-side sheet 47 may be folded back from the skin-surface side T1 to the non-skin-surface side T2 along the 3 rd fold FL3 extending in the front-rear direction L. The leg side sheet 47 may have a portion extending from the 3 rd fold FL3 toward the absorbent core in the width direction W.

The outer cover 50 (the front outer cover 50A and the rear outer cover 50B) is disposed on the non-skin surface side T2 with respect to the absorbent main body 20. The exterior body 50 may be formed of a plurality of sheet members. The exterior body 50 may have a sheet member disposed on the skin surface side T1 with respect to the absorbent main body 20. The front outer cover 50A may have a 1 st front side sheet 51F and a 2 nd front side sheet 52F disposed on the non-skin surface side T2 with respect to the 1 st front side sheet 51F. The 1 st front side sheet 51F may be disposed on the non-skin surface side T2 with respect to the waist elastic member 55. The 2 nd front side sheet 52F may be disposed on the skin surface side T1 with respect to the waist elastic member 55. The 1 st front side sheet 51F may have a 1 st front folded part 51FP formed by folding an outer portion in the front-rear direction L back to the skin surface side T1. The 2 nd front side sheet 52F may have a 2 nd front folded part 52FP formed by folding back an outer portion in the front-rear direction L toward the skin surface side T1. The 1 st front folded back portion 51FP may be positioned closer to the skin surface side T1 than the 2 nd front side sheet 52F. The 1 st front side sheet 51F and the 2 nd front side sheet 52F may be made of, for example, nonwoven fabric.

The rear exterior body 50B may be separated from the front exterior body 50A in the front-rear direction L. The rear outer package 50B may be disposed on the non-skin surface side T2 with respect to the absorbent main body 20. The rear exterior body 50B may include a 1 st rear side sheet 51R and a 2 nd rear side sheet 52R disposed on the non-skin surface side T2 with respect to the 1 st rear side sheet 51R. The 1 st back side sheet 51R may be disposed on the non-skin surface side T2 with respect to the waist elastic member 55. The 2 nd back side sheet 52R may be disposed on the skin surface side T1 with respect to the waist elastic member 55. The 1 st back side sheet 51R may have a 1 st front folded-back portion 51FP formed by folding back an outer portion in the front-back direction L toward the skin surface side T1. The 1 st rear folded back portion 51RP may be positioned closer to the skin surface side T1 than the 2 nd front side sheet 52F. The 1 st and 2 nd back

side sheets

51R and 52R may be made of nonwoven fabric, for example.

The outer body 50 includes a waist elastic member 55 disposed in the waistline region in an extended state in the width direction W. The waist elastic member 55 may be constituted by a thread-like or string-like elastic member extending in the width direction W. The length of the thread-like or string-like elastic member in the front-rear direction L (i.e., the thickness of the elastic member) may be, for example, less than 5 mm. The waist elastic member 55 may have a continuous elastic member 55C and a discontinuous elastic member 55N.

The continuous elastic member 55C continuously extends from one outer side portion of the front waistline region S1 (or the back waistline region S2) to the other outer side portion in the width direction W. Of the continuous elastic members 55C, the continuous elastic member 55C disposed in the 1 st waistline region, which is one of the front waistline region S1 and the back waistline region S2, may be referred to as a 1 st continuous elastic member, and the continuous elastic member 55C disposed in the 2 nd waistline region, which is the other region, may be referred to as a 2 nd continuous elastic member. For example, the continuous elastic member disposed in the front waistline region S1 is the 1 st continuous elastic member, and the continuous elastic member disposed in the back waistline region S2 is the 2 nd continuous elastic member. The 1 st continuous elastic member of the present embodiment is an elastic member disposed to extend continuously from one outer side portion of the front waistline region to the other outer side portion in the width direction W. The 2 nd continuous elastic member according to the present embodiment is an elastic member disposed so as to extend continuously from one outer side portion to the other outer side portion in the width direction W of the back waistline region. Further, the "1 st continuous elastic member" of the embodiment constitutes the "continuous elastic member" in the claims, and the "2 nd continuous elastic member" of the embodiment constitutes the "2 nd continuous elastic member" in the claims. In the description of the embodiments below, the continuous elastic member includes a 1 st continuous elastic member and a 2 nd continuous elastic member.

The continuous elastic member (1 st continuous elastic member and 2 nd continuous elastic member) 55C may have an overlapping continuous elastic member 55CO and a non-overlapping continuous elastic member 55 CN. The overlapped continuous elastic member 55CO may overlap the absorbent core 31 in the thickness direction T at a position further outward in the front-rear direction L than at least any one of the discontinuous elastic members 55N. In the embodiment, the continuous overlapped elastic member 55CO overlaps the absorbent core 31 in the thickness direction T at a position further outward in the front-rear direction L than the inner discontinuous elastic member 55NA described later. The discontinuous elastic member 55N may have a 1 st discontinuous elastic member disposed in the 1 st waistline region and a 2 nd discontinuous elastic member disposed in the 2 nd waistline region. Furthermore, the 1 st discontinuous elastic member constitutes a "discontinuous elastic member" in the claims. In the following description, the discontinuous elastic member includes a 1 st continuous elastic member and a 2 nd continuous elastic member.

As shown in fig. 5, in the embodiment, the continuous elastic member 55C overlaps the leg elastic member 75 at a position further outward in the front-rear direction L than at least one of the discontinuous elastic members 55N. Further, at least the 1 st continuous elastic member of the continuous elastic members 55C may overlap the leg elastic members 75 at a position further outward in the front-rear direction L than the discontinuous elastic members 55N. In the embodiment, the overlapping continuous elastic member 55CO overlaps with the leg elastic member 75 in the thickness direction T in the front waistline region. Hereinafter, the description will be given by taking an example in which the continuous elastic member 55CO is overlapped as an example of the continuous elastic member 55C overlapped with the leg elastic member 75 in the thickness direction T. The overlapping continuous elastic member 55CO may overlap the low area weight region LR in the thickness direction T. On the other hand, the non-overlapping continuous elastic member 55CN may not overlap the absorbent core 31 in the thickness direction T. Further, in the embodiment, the non-overlapping continuous elastic member 55CN does not overlap with the absorbent main body 20 in the thickness direction T. The non-overlapping continuous elastic member 55CN may include an elastic member overlapping the absorbent main body 20 in the thickness direction T.

The overlapped continuous elastic member 55CO may be constituted by a plurality of elastic members arranged at intervals in the front-rear direction L. In the embodiment, the overlapping continuous elastic member 55CO is composed of four elastic members. The continuous overlapped elastic member 55CO may be disposed at a position rearward of the front end edge 16F of the side joint portion 16 in the front waistline region S1 and at a distance from the front end edge 16F of 5% to 20% of the entire length (from the front end edge to the rear end edge of the absorbent article 1) in the front-rear direction L of the absorbent article 1. In the front waistline region S1, the continuous overlapping elastic member 55CO may be disposed forward of the rear end edge 16R of the side joint section 16 in the front waistline region S1 and at a distance from the rear end edge 16R of 20% to 90% of the total length of the side joint section 16 in the front-rear direction L, preferably at a position forward of the rear end edge 16R and at a distance from the rear end edge 16R of 40% to 70% of the total length of the side joint section 16 in the front-rear direction L, and more preferably at a position forward of the rear end edge 16R and at a distance from the rear end edge 16R of 45% to 65% of the total length of the side joint section 16 in the front-rear direction L.

The continuous elastic member 55C may have an inner continuous elastic member 55 CI. The inner continuous elastic member 55CI is disposed inward in the front-rear direction L from an inner end edge 811E of a front-rear fixing portion 811, which will be described later. The overlapped continuous elastic member 55CO may have the inner continuous elastic member 55CI as in the present embodiment. Therefore, the inner continuous elastic member 55CI may overlap the absorbent core 31 in the thickness direction T. In addition, the inner continuous elastic member 55CI may overlap the low area weight region LR in the thickness direction T.

The inner continuous elastic member 55CI may be disposed rearward of the front end edge 16F of the side joint portion 16 in the front waist region S1 and at a distance from the front end edge 16F of 5% to 20% of the entire length of the absorbent article 1 in the front-rear direction L, similarly to the overlapped continuous elastic member 55 CO. Similarly, in the front waistline region S1, the inner continuous elastic member 55CI may be disposed at a position forward of the rear end edge 16R of the side joining portion 16 in the front waistline region S1 and at a distance from the rear end edge 16R of 20% to 90% of the total length of the side joining portion 16 in the front-rear direction L, preferably at a position forward of the rear end edge 16R and at a distance from the rear end edge 16R of 40% to 70% of the total length of the side joining portion 16 in the front-rear direction L, and more preferably at a position forward of the rear end edge 16R and at a distance from the rear end edge 16R of 45% to 65% of the total length of the side joining portion 16 in the front-rear direction L.

The inner continuous elastic member 55CI may be constituted by a plurality of elastic members adjacent in the front-rear direction L. In the present embodiment, two elastic members disposed on the inner side in the front-rear direction L among the four elastic members constituting the overlapped continuous elastic member 55CO are the inner continuous elastic member 55 CI. Thus, the inner continuous elastic member 55CI has the 1 st inner continuous elastic member 55CIA and the 2 nd inner continuous elastic member 55 CIB. The 1 st inner continuous elastic member 55CIA is disposed at the innermost position in the front-rear direction L in the inner continuous elastic member 55 CI. The 2 nd inner continuous elastic member 55CIB is adjacent to the 1 st inner continuous elastic member 55CIA on the outer side in the front-rear direction L of the 1 st inner continuous elastic member 55 CIA.

It may be that, among the waist elastic members 55, the contraction force of the inner continuous elastic member 55CI is the largest. The waist elastic member 55 is an elastic member including a 1 st continuous elastic member and a 2 nd continuous elastic member. In addition, the contraction force of the 1 st inner continuous elastic member 55CIA may be the largest in the waist elastic member 55. In the present specification, the contractive force of the elastic member can be measured, for example, by the following method. The length H0 of the effective length portion of the elastic member in a state where the absorbent article 1 is maximally extended in the front-back direction L and the width direction W to such an extent that the wrinkle generated in the absorbent article 1 is not visually recognized is measured. Next, the elastic member is detached from the absorbent article 1, and the length H1 of the effective length portion of the elastic member is measured. Then, the contractive force of the elastic member can be calculated by "contractive force H0/H1".

The continuous elastic member 55C may have a stretch panel 55CS that continuously extends from one outer side portion of the front waistline region S1 to the other outer side portion in the width direction W. The stretch panel 55CS is a sheet-like elastic member. The length of the stretchable panel 55CS in the front-rear direction L may be 5mm or more, for example. The stretch sheet 55CS may be made of, for example, a stretchable resin film, a stretchable nonwoven fabric, or a combination of these materials.

The stretch panel 55CS has stretchability at least in the width direction W, and is disposed in an extended state in the width direction W. The stretch panel 55CS may be disposed between the 1 st front side panel 51F and the 2 nd front side panel 52F in the thickness direction T. The stretch panel 55CS may be disposed at a position closer to the skin surface side T1 than the waist elastic member 55 in a string or string shape.

The outer side portion of the stretch panel 55CS in the width direction W may be fixed to the 1 st front side sheet 51F and/or the 2 nd front side sheet 52F by the side joining portions 16 in a state where the stretch panel 55CS is extended in the width direction W. The stretchable sheet 55CS may be formed by fixing at least a part of the main surface of the stretchable sheet 55CS to the 1 st front side sheet 51F and/or the 2 nd front side sheet 52F by a bonding portion (not shown) such as a Hot Melt Adhesive (HMA) or an ultrasonic sealing portion.

The discontinuous elastic member 55N does not extend continuously in the width direction W at least at the center in the width direction W of the waistline region. The center of the waistline region in the width direction W is a region from at least one outer end to the other outer end of the absorbent core 31. The region where the discontinuous elastic member 55N does not continuously extend in the width direction W may be a region sandwiched by the left and right discontinuous elastic members 55N. In the region where the discontinuous elastic member 55N does not continuously extend in the width direction W, the contraction force in the width direction W is reduced as compared with the region where the discontinuous elastic member 55N continuously extends in the width direction W. As a method of providing the region where the discontinuous elastic member 55N does not continuously extend in the width direction W, for example, the following method can be used.

In method 1, the contracted region may be reduced by not disposing the discontinuous elastic member 55N in an elongated state. For example, an adhesive (e.g., a Hot Melt Adhesive (HMA)) for fixing the discontinuous elastic member 55N is disposed in a region where the discontinuous elastic member 55N is disposed in an extended state, and an adhesive for fixing the discontinuous elastic member 55N is not disposed in a region where a contraction force is reduced (hereinafter, a low contraction region LER). Thereby, the discontinuous elastic member 55N is fixed in an extended state in the region where the adhesive is arranged. Since the extended state of the discontinuous elastic member 55N is maintained in the region where the adhesive is not arranged and the region sandwiched by the regions where the adhesive is arranged in the width direction W, the discontinuous elastic member 55N that has been cut is contracted by cutting the discontinuous elastic member 55N in the region. Thus, the low contraction region LER can be provided without disposing the discontinuous elastic member 55N having contractibility (i.e., in an extended state) in the low contraction region LER. Therefore, in the low shrinkage region LER, the discontinuous elastic member 55N does not extend continuously in the width direction W.

Further, in the case where the low shrinkage region LER (hereinafter, the 1 st low shrinkage region LER1) is provided by the above-described method 1, the discontinuous elastic member 55N may have a fixed portion and a non-fixed portion. The fixing portion is a portion disposed in an elongated state. The non-fixed portion is a portion that is not fixed in an elongated state but exists in a natural state. In the method 2, the contraction force of the discontinuous elastic member 55N may be reduced by cutting (dicing) the discontinuous elastic member 55N fixed to the low contraction region LER at a plurality of portions. Thereby, the discontinuous elastic member 55N does not continuously extend in the width direction W. In this case, even if the discontinuous elastic member 55N is fixed in an extended state, the contractive force of the discontinuous elastic member 55N is reduced. Further, since the discontinuous elastic member 55N having a residual contractive force is disposed (fixed) in the low contraction region LER (hereinafter, the 2 nd low contraction region LER2) provided by the above-described method 2, the contractive force of the 2 nd low contraction region LER2 is generally larger than the contractive force of the 1 st low contraction region LER 1.

The discontinuous elastic member 55N may have an inner discontinuous elastic member 55NA and an outer discontinuous elastic member 55 NB. The inner discontinuous elastic member 55NA is disposed inward of the superposed continuous elastic member 55CO in the front-rear direction L. The outer discontinuous elastic member 55NB is disposed at a position further outward in the front-rear direction L than the superposed continuous elastic member 55 CO.

As shown in fig. 5, in the embodiment, the 1 st low contraction region LER1 is provided by making the inner discontinuous elastic member 55NA not extend continuously in the width direction W by the 1 st method. The inner discontinuous elastic member 55NA having contractibility in the width direction W is not disposed in the 1 st low-contraction region LER 1. The inner discontinuous elastic members 55NA are disposed on both outer sides in the width direction W of the 1 st low-shrinkage region LER 1. On the other hand, the 2 nd low contraction region LER2 is provided by causing the outer discontinuous elastic member 55NB not to extend continuously in the width direction W by the 2 nd method. The outer discontinuous elastic member 55NB is disposed in the 2 nd low-shrinkage region LER 2. The contraction force of the outer discontinuous elastic member 55NB disposed in the 2 nd low contraction region LER2 is lower than the contraction force of the outer discontinuous elastic member 55NB disposed at a position further outward in the width direction W than the 2 nd low contraction region LER 2.

Next, the leg gathers 70 will be explained. The leg gathers 70 are gathers provided on the outer side in the width direction W than the absorbent core 31. The leg gathers 70 may be provided around the leg hole opening portions 18 and the leg hole opening portions 18. The leg gathers 70 may be provided on the non-skin surface side T2 with respect to the leg gathers 80. The leg gathers 70 are lifted up toward the body side of the wearer by contraction of the leg elastic members 75. The leg gather 70 has a leg elastic member 75. The leg elastic member 75 is disposed on the outer side in the width direction W than the absorbent core 31 in the crotch region S3. The leg elastic member 75 is disposed in a state of being elongated in the front-rear direction L. The leg elastic member 75 extends in the front-back direction L at least in the crotch region S3. The leg elastic members 75 are disposed in the front waistline region S1. The leg elastic members 75 may also be disposed in the back waistline region S2.

As shown in fig. 7, in the present embodiment, the leg elastic members 75 may be disposed on the leg side sheets 47. The leg elastic members 75 may be disposed between the leg side sheet 47 and the back sheet 42 in the thickness direction T. In addition, the leg elastic member 75 may be disposed so as to be sandwiched by the leg side sheets 47 in the thickness direction T. Some of the leg elastic members 75 (for example, the leg elastic members 75 disposed on the outermost side in the width direction W) of the plurality of leg elastic members 75 may be disposed so as to be sandwiched by the leg side sheets 47 in the thickness direction T. The leg elastic members 75 may be fixed to the leg side sheet 47 or the back sheet 42. Therefore, the leg gathers 70 may include the leg side panels 47 in addition to the leg elastic members 75. The leg gathers 70 may also include leg elastic members 75, leg side sheets 47, and back sheets 42. The leg elastic members 75 may be disposed on another sheet member (a sheet member other than the back sheet 42 and the leg side sheet 47) disposed on the outer side in the width direction W than the absorbent core 31 in the thickness direction T.

As shown in fig. 5, in the embodiment, the leg elastic member 75 overlaps the continuous elastic member 55C in the thickness direction T at a position further outward in the front-rear direction L than at least one of the discontinuous elastic members 55N. The leg elastic member may overlap the overlapping continuous elastic member 55CO in the thickness direction T. The leg elastic member 75 may overlap two or more elastic members among the plurality of elastic members constituting the overlapping continuous elastic member 55CO in the thickness direction T. In fig. 5, the leg elastic member 75 overlaps with the four overlapping continuous elastic members 55CO in the thickness direction T. In addition, the leg elastic member 75 overlaps the inner continuous elastic member 55CI in the thickness direction T. In addition, the leg elastic member 75 may overlap the non-continuous elastic member 55N in the thickness direction T. The leg elastic member 75 may overlap the inner discontinuous elastic member 55NA in the thickness direction T. The leg elastic members 75 may be disposed at positions that do not overlap with the outer discontinuous elastic members 55NB in the thickness direction T.

The leg elastic member 75 may overlap the stretch panel 55CS as the continuous elastic member 55C in the thickness direction T. Therefore, the inner end edge of the stretch panel 55CS in the front-rear direction L can be positioned inward of the outer end edge of the leg elastic member 75 in the front-rear direction L. Further, the leg elastic members 75 may be disposed at positions not overlapping the continuous elastic members 55C in the thickness direction T in the back waistline region S2. The leg elastic members 75 may be disposed in the rear waistline region S2 so as to overlap the non-continuous elastic member 55N in the thickness direction T, or so as not to overlap the non-continuous elastic member 55N.

As shown in fig. 5, the length L1 in the front-rear direction L of the portion of the leg elastic member 75 overlapping the front waistline region S1 in the thickness direction T may be longer than the length L2 in the front-rear direction L of the portion of the leg elastic member 75 overlapping the back waistline region S2 in the thickness direction T. In addition, in the case where the leg elastic members 75 overlap the front waistline region S1 and do not overlap the rear waistline region S2 in the thickness direction T, the length L2 is 0, and therefore the length L1 is longer than the length L2.

In the waist elastic member 55, the contraction force of the overlapped continuous elastic members 55CO overlapped with the leg elastic members 75 in the thickness direction T may be the largest. In the case where the overlapped continuous elastic member 55CO is composed of a plurality of elastic members, the contraction force of any one of the plurality of elastic members may be the largest in the waist elastic member 55. Of the overlapped continuous elastic members 55CO overlapped with the leg elastic members 75 in the thickness direction T, the overlapped continuous elastic member 55CO positioned innermost in the front-rear direction L (the 1 st inner continuous elastic member 55CIA constituting the innermost continuous elastic member in fig. 5) may have the largest contractive force.

Further, the contractive force of the overlapped continuous elastic members 55CO overlapped with the leg elastic members 75 in the thickness direction T may be larger than the contractive force of the leg elastic members 75. The contractive force of one or more of the overlapped continuous elastic members 55CO may be larger than the contractive force of the leg elastic member 75. It is possible that all of the overlapping continuous elastic members 55CO have a larger contractive force than the leg elastic members 75. Alternatively, the contraction force of the leg elastic member 75 may be larger than that of the overlapped continuous elastic member 55CO overlapped with the leg elastic member 75 in the thickness direction T.

Here, as shown in fig. 8A, in the conventional absorbent article, the leg elastic members 75 do not overlap the continuous elastic members 55C in the thickness direction T. In this case, in the front waistline region S1, the force to the skin surface side T1 is not sufficiently applied to the leg elastic members 75, and therefore, the positions of the leg elastic members 75 are difficult to fix. Therefore, the leg elastic members 75 are easily separated from the body or easily moved rearward in the front-rear direction L. Therefore, by the contraction of the leg elastic members 75, a force in the direction toward the front waistline region S1 and a force in the direction toward the rear waistline region S2 act on the leg elastic members 75. As a result, as shown in fig. 8A, when the wearer lifts his or her legs in the supine lying position, the leg elastic members 75 disposed in the crotch region S3 are not sufficiently lifted toward the front waistline region S1, and the crotch region S3 is easily maintained in a sagged state as shown by the contour line 20L of the absorbent main body 20. In this case, since the absorbent core 31 is separated from the body of the wearer, there is a possibility that side leakage of excrement occurs. Particularly, after excretion, the crotch region S3 sags due to the weight of the absorbent core 31 that has absorbed excrement, and therefore excrement that cannot be absorbed by the absorbent core 31 may leak in the width direction W in the crotch region S3.

As described above, in the embodiment, the leg elastic member 75 overlaps the continuous elastic member 55C in the thickness direction T. Since the leg elastic members 75 are urged toward the skin surface side T1 by contraction of the continuous elastic members 55C, the leg elastic members 75 arranged in the front waistline region S1 are easily fixed at the position P1 overlapping the continuous elastic members 55C in the thickness direction T, as shown in fig. 8B. Thereby, the leg elastic member 75 contracts, and the leg elastic member 75 is urged by the force F in the direction toward the position P1. Therefore, for example, as shown in fig. 8B, in the supine lying position, when the wearer lifts the legs, the leg elastic members 75 arranged in the crotch region S3 are lifted up toward the front waistline region S1 side. In fig. 8A, as shown by the contour line 20L of the absorbent main body 20, the leg elastic members 75 are lifted up to lift up the crotch region S3. As a result, sagging of the crotch region S3 can be suppressed, and the absorbent core 31 can be brought close to the body of the wearer.

Further, the region overlapping with the continuous elastic member 55C in the thickness direction T is closely fitted to the body side of the wearer by contraction of the continuous elastic member 55C, and therefore is less likely to shift toward the crotch region S3 side. Further, the continuous elastic member 55C overlaps the leg elastic member 75 at a position further outward in the front-rear direction L than the inner discontinuous elastic member 55 NA. In the region where the inner discontinuous elastic member 55NA does not continuously extend in the width direction W, the contraction force is reduced as compared with the portion where the inner discontinuous elastic member 55NA continuously extends, and therefore, it is possible to suppress contraction of the front waistline region S1 in the width direction W at a position inward in the front-rear direction L (i.e., on the crotch region S3 side) of the continuous elastic member 55C (the overlapped continuous elastic member 55CO in the embodiment), and to secure the absorption area. Therefore, while the front waistline region S1 is prevented from contracting in the width direction W, side leakage of excrement due to sagging of the crotch region S3 can be prevented.

In addition, the leg elastic members 75 may be disposed at positions not overlapping the continuous elastic members 55C in the thickness direction T in the back waistline region S2. Thus, as shown in fig. 8A, in the lying posture in which the front waistline region S1 is the upper side and the rear waistline region S2 is the lower side, the position of the end portion of the leg elastic member 75 on the rear waistline region S2 side is not fixed by the continuous elastic member 55C of the rear waistline region S2, and therefore, the crotch region S3 can be easily pulled up toward the front waistline region S1 by the contraction of the leg elastic member 75 while the crotch region S3 is not easily pulled down toward the rear waistline region S2 side by the contraction of the leg elastic member 75. Thus, in the lying position, the front waistline region S1 can be easily brought close to the body of the wearer, and side leakage of excrement due to sagging of the crotch region S3 can be suppressed.

In addition, the 1 st waistline region where the leg elastic member 75 overlaps with the continuous elastic member 55C in the thickness direction T may be the front waistline region S1. The wearer often lies in a supine position with the abdomen side facing up (lying down). Therefore, the crotch region S3 is easily lifted up to the abdomen side by contraction of the leg elastic members 75, and side leakage of excrement due to sagging of the crotch region S3 in the lying posture can be easily suppressed.

In addition, the leg elastic member 75 may have an overlapping continuous elastic member 55 CO. Thus, the absorbent core overlapped with the overlapped continuous elastic member 55CO in the thickness direction is closely fitted to the wearer's body side by contraction of the overlapped continuous elastic member 55CO, and is less likely to shift toward the crotch region side. It is possible to suppress the displacement of the entire absorbent core 31 toward the crotch region side due to the weight of the absorbent core 31 (particularly, the absorbent core 31 in which excrement is absorbed). Further, the absorbent core 31 can be prevented from contracting in the width direction at a position inward in the front-rear direction L (i.e., on the crotch region S3 side) of the continuous laminated elastic member 55CO by the inner discontinuous elastic member 55NA, and an absorption area can be ensured.

In addition, the leg elastic member 75 may overlap with two or more elastic members among the plurality of elastic members constituting the continuous elastic member 55C in the thickness direction T. The leg elastic members 75 disposed in the front waist region S1 are more easily fixed to the front waist region S1 by overlapping with two or more continuous elastic members 55C in the thickness direction T. Thus, the leg elastic members 75 arranged in the crotch region S3 are easily lifted toward the front waistline region S1 by contraction of the leg elastic members 75, and the crotch region S3 can be easily lifted.

In the front waist region S1, the continuous elastic member 55C overlapping the leg elastic members 75 in the thickness direction T may be disposed rearward of the front end edge 16F of the side joint sections 16 in the front waist region S1 and at a distance from the front end edge 16F of 5% to 20% of the entire length of the absorbent article 1 in the front-rear direction L. This makes it possible to provide the continuous elastic member 55C in a region where the depression of the lower end of the abdomen of the wearer is easily arranged. Since the gap between the wearer and the front outer cover 50A is likely to occur due to the depression of the lower end of the wearer's abdomen, the absorbent body 30 (absorbent core 31) can be easily bent in the front-rear direction L along the depression of the lower end of the wearer's abdomen. As a result, the absorbent body 30 can be disposed along the abdomen portion bulging from the depression at the lower end of the abdomen of the wearer in the front-back direction L, and the absorbent body 30 can be attached to the body of the wearer in the front-back direction L.

In addition, in the waist elastic member 55, the contraction force of the continuous elastic member 55C overlapping with the leg elastic member 75 in the thickness direction T may be the largest. Thus, in the region where the continuous elastic member 55C is disposed, the force of the continuous elastic member 55C that is brought into close contact with the wearer' S body due to contraction thereof is strong, and therefore, the continuous elastic member is less likely to be displaced toward the crotch region S3. This can firmly fix the leg elastic members 75 while suppressing the entire absorbent core 31 from shifting toward the crotch region S3 side.

Further, the contraction force of the continuous elastic member 55C overlapping with the leg elastic member 75 in the thickness direction T may be larger than the contraction force of the leg elastic member 75. Thereby, the leg elastic member 75 can be firmly fixed at a position where the leg elastic member 75 and the continuous elastic member 55C overlap in the thickness direction T. The crotch region can be reliably lifted up by the contractive force of the leg elastic members 75, and sagging of the crotch region S3 can be suppressed.

The continuous elastic member 55C overlapping the leg elastic member 75 in the thickness direction T may overlap the low basis weight region LR in the thickness direction T. Since the low basis weight region LR has lower rigidity than the surroundings, the contractive force of the continuous elastic member 55C is less likely to be hindered by the rigidity of the absorbent body 30. By contraction of the continuous elastic member 55C, the portion of the absorber 30 in the low basis weight region LR can be brought closer to the wearer 'S body, and the front waistline region S1 can be fitted to the wearer' S body. In particular, since the absorbent material in the low basis weight region LR has a lower basis weight than the surroundings, even if the absorbent body 30 absorbs excrement, the absorbent body 30 is less likely to swell in the low basis weight region LR. Therefore, the contraction of the continuous elastic member 55C is not easily hindered even after excretion, and the front waistline region S1 can be fitted to the body of the wearer even after excretion. As a result, the front waist region S1 can be prevented from shifting toward the crotch region S3, and leakage of bodily waste from the waist opening 17 can be prevented.

The discontinuous elastic member 55N may further include an outer discontinuous elastic member 55NB, and the outer discontinuous elastic member 55NB may be disposed outward in the front-rear direction L from the continuous elastic member 55C overlapping the leg elastic member 75 in the thickness direction T. Thus, the front waistline region S1 can be fitted to the body of the wearer without tightening to the body of the wearer at the center side in the width direction W of the front waistline region S1 on the outer side of the wearer in the front-rear direction L with respect to the continuous elastic members 55C overlapping with the leg elastic members 75 in the thickness direction T, and the front waistline region S1 can be fitted along the body of the wearer by contraction of the outer discontinuous elastic members 55NB on the outer side of the wearer.

Next, the leg side gathers 80 will be explained. The leg side gathers 80 are gathers that can rise toward the skin surface side T1. Can be provided on the skin surface side T1 of the leg side gathers 80. The leg side gather 80 may have a fixed portion 81 and a standing portion 82. The fixing portion 81 fixes the leg side piece 47. Specifically, the fixing portion 81 fixes a part of the leg side sheet 47 to which the leg side elastic member 85 is fixed to a member located on the non-skin surface side T2 with respect to the part of the leg side sheet 47. In the embodiment, the 3 rd part 473 of the leg side panel 47 is fixed to the 4 th part 474 by the fixing part 81. The fixing portion 81 may be formed of an adhesive portion such as a Hot Melt Adhesive (HMA) or an ultrasonic sealing portion.

The fixing portion 81 includes a front and rear fixing portion 811 for fixing the leg side sheet 47 at a position further outward in the front-rear direction L than the rising portion 82, and a width fixing portion 812 for fixing the leg side sheet 47 at a position further outward in the width direction W than the rising portion 82. The front and rear fastening portions 811 may have a front fastening portion disposed in the front waistline region S1 and a rear fastening portion disposed in the rear waistline region S2.

In the embodiment, the front-rear fixing portion 811 has an inner end edge 811E located on the inner side in the front-rear direction L. The continuous elastic member 55C is disposed inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811. Specifically, the inner continuous elastic member 55CI is disposed inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811. The overlapped continuous elastic members 55CO other than the inner continuous elastic member 55CI are disposed at positions outward in the front-rear direction L from the inner end edges 811E of the front-rear fixing portions 811. The front-rear fixing portion 811 has an inner edge 811S located on the inner side in the width direction W. The inner edge 811S of the front and rear fixing portions 811 may be disposed in the low shrinkage region LER where the discontinuous elastic member 55N does not continuously extend in the width direction W.

As shown in fig. 6, the absorbent core 31, the standing portion 82, and the inner continuous elastic member 55CI may overlap in the thickness direction T. In addition, in the case where the absorbent core 31 is provided with the compressed portion, the standing portion 82, and the inner continuous elastic member 55CI may overlap in the thickness direction T. As shown in fig. 7B, the rising portion 82 can rise by contraction of the leg-side elastic member 85. The rising portion 82 can rise with a boundary between the rising portion 82 and the fixing portion 811 as a base point. Specifically, the rising portion 82 can rise in the width direction W with an inner end edge in the width direction W of the width fixing portion 812 as a base point, and can rise in the front-rear direction L with an inner end edge 811E in the front-rear direction L of the front-rear fixing portion 811 as a base point. However, as will be described later, when the continuous elastic member 55C (inner continuous elastic member 55CI) is disposed at a position inward in the front-rear direction L from the inner end edge 811E in the front-rear direction L of the front-rear fixing portion 811, the contracted portion can rise with a position SP overlapping the inner continuous elastic member 55CI in the thickness direction T as a base point.

The leg-side elastic members 85 are disposed on the leg side sheets 47 in an extended state in the front-rear direction L. In the present embodiment, the leg-side elastic member 85 is sandwiched by the leg-side sheet 47. The leg-side elastic member 85 may be formed of a single elastic member, or may be formed of a plurality of elastic members arranged at intervals in the width direction W. In the present embodiment, the leg-side elastic member 85 is composed of two elastic members. The leg-side elastic members 85 may be formed of thread-like or string-like elastic members extending in the front-rear direction L. The leg-side elastic members 85 are disposed on the leg side sheets 47 in an extended state in the front-rear direction L. In the present embodiment, the leg-side elastic member 85 is sandwiched by the leg-side sheet 47. Specifically, the leg side elastic member 85 is disposed between the 2 nd portion 472 and the 3 rd portion 473 of the leg side sheet 47. The leg side elastic member 85 may be fixed to at least one of the 2 nd and 3

rd portions

472 and 473 of the leg side sheet 47.

The contraction force of the inner continuous elastic member 55CI overlapped with the leg side elastic member 85 in the thickness direction T may be larger than the contraction force of the leg side elastic member 85. Here, as shown in fig. 9A, in the conventional absorbent article, the continuous elastic member 55C is not disposed at a position inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811. Therefore, as usual, the rising portion 82 rises with the inner end edge 811E of the front and rear fixing portions 811 as a base point. Therefore, the vicinity of the inner end edge 811E of the front and rear fixing portions 811 is likely to be separated from the body of the wearer, and a gap G is likely to be generated between the absorbent article and the body. There is therefore a problem that: the excrement spreading toward the waistline region side in the absorbent body 30 spreads in the width direction W, and side leakage is likely to occur.

As described above, in the embodiment, the continuous elastic member 55C includes the inner continuous elastic member 55CI, and the inner continuous elastic member 55CI is disposed inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811. As shown in fig. 9B, since the inner continuous elastic member 55CI is disposed inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811, the rising portion 82 located inward in the front-rear direction L from the front-rear fixing portion 811 and the inner continuous elastic member 55CI overlap in the thickness direction T. Therefore, the rising portion 82 can be brought into close contact with the body at the position where the rising portion 82 and the inner continuous elastic member 55CI overlap. This can prevent the excrement from reaching the position on the outer side in the front-rear direction L than the rising portion 82, and can suppress the excrement from spreading in the width direction W from the position on the outer side in the front-rear direction L than the rising portion 82. On the other hand, at a position inward in the front-rear direction L from the position SP where the rising portion 82 and the inner continuous elastic member 55CI overlap, the rising portion 82 can rise with the overlapping position SP as a base point by contraction of the leg-side elastic member 85, and therefore, the excrement spreading in the width direction W on the absorbent body 30 can be received.

Further, the region where the continuous elastic member 55C is disposed is brought into close contact with the body of the wearer by contraction of the continuous elastic member 55C. On the other hand, at a position further inward in the front-rear direction L than the inner continuous elastic member 55CI, the discontinuous elastic member 55N does not extend continuously in the width direction W, and therefore, there is a low contraction region LER where the contraction force in the width direction W is low. Thus, the portion located further to the inside in the front-rear direction L than the inner continuous elastic member 55CI is relatively easily separated from the body side. With the above, leakage of excrement spreading on the absorber 30 toward the front waistline region S1 can be suppressed.

In addition, the inner continuous elastic member 55CI may be configured by a plurality of elastic members adjacent in the front-rear direction L. This enables the rising portion 82 to be closely fitted to the body in a planar manner, and the rising portion 82 can be firmly fixed at the position SP where the rising portion 82 and the inner continuous elastic member 55CI overlap. Therefore, the excrement can be prevented from reaching the position on the outer side in the front-rear direction L than the rising portion 82. As a result, the excrement can be prevented from spreading in the width direction W from a position outside the rising portion 82 in the front-rear direction L.

Further, in the waist elastic member 55, the contraction force of the inner continuous elastic member 55CI may be the largest. By increasing the contraction force of the inner continuous elastic member 55CI, the rising portion 82 can be brought into close contact with the body. This can prevent the excrement from spreading in the width direction W from a position outside the rising portion 82 in the front-rear direction L. Further, by bringing the rising portion 82 into close contact with the body, the portion located inward in the front-rear direction L with respect to the overlapping position SP at which the rising portion 82 and the inner continuous elastic member 55CI overlap is more likely to be separated from the body. This makes it easy to raise the raised portion 82 with the overlapping position SP as a base point, and can catch the excrement spreading in the width direction W on the absorbent body 30.

Further, in the waist elastic member 55, the contraction force of the innermost continuous elastic member (1 st inner continuous elastic member 55CIA) may be the largest. The innermost continuous elastic member can be reliably brought into close contact with the body, and the excrement can be prevented from reaching a position further to the outside in the front-rear direction L than the innermost continuous elastic member. Further, since the rising portion 82 rises with the position SP where the rising portion 82 and the innermost continuous elastic member overlap as a base point, the contraction force of the innermost continuous elastic member is maximized, so that the rising portion 82 is easily raised, and the excrement spreading in the width direction on the absorbent body 30 can be received.

In addition, the inner continuous elastic member 55CI may overlap the low area weight region LR in the thickness direction. Thus, since the stiffness of the low basis weight region LR is lower than the surrounding, the contractive force of the inner continuous elastic member 55CI is less likely to be hindered by the stiffness of the absorbent body 30. In particular, since the absorbent material in the low basis weight region LR has a lower basis weight than the surroundings, even if the absorbent body 30 absorbs excrement, the absorbent body 30 is less likely to swell in the low basis weight region LR. In particular, in the present embodiment, since the low specific weight region LR has a specific weight of 0, the expansion of excrement can be suppressed. Therefore, the contraction of the overlapped continuous elastic member 55CO after excretion is not easily hindered. Therefore, the region overlapping the inner continuous elastic member 55CI in the thickness direction T can be brought closer to the wearer's body by contraction of the inner continuous elastic member 55 CI. Therefore, the excrement can be prevented from reaching the position on the outer side in the front-rear direction L than the inner continuous elastic member 55 CI. In addition, the standing portions 82 are easily raised, and the excrement spreading in the width direction W on the absorbent body 30 can be received.

In addition, the absorbent core 31, the standing portion 82, and the inner continuous elastic member 55CI may overlap in the thickness direction T. Accordingly, the rising portion 82 is brought into close contact with the body side by contraction of the inner continuous elastic member 55CI, and therefore, a portion of the rising portion 82 located inward of the position SP in the front-rear direction L is raised from the position SP where the rising portion 82 and the inner continuous elastic member 55CI overlap in the thickness direction T. Since a part of the standing portion 82 serving as a base point of the leg side gathers 80 is supported by the absorbent core 31 having high rigidity, a part of the standing portion 82 can be stably fixed in position. Therefore, the portion of the rising portion 82 that is located more inward than a part of the rising portion 82 in the front-rear direction L can be easily raised.

In addition, the compressed portion, the standing portion, and the inner continuous elastic member 55CI may overlap in the thickness direction T. Thus, the part of the standing portion 82 which serves as a base point of the leg side gathers 80 is supported by the compressed portion having a high rigidity also in the absorbent core 31, and therefore the part of the standing portion 82 can be stably fixed in position. Therefore, the portion of the rising portion 82 that is located more inward in the front-rear direction than a part of the rising portion 82 can be more easily raised.

The inner edge 811S of the front and rear fixing portion 811 may be disposed in the low contraction region LER. Thus, since the low shrinkage region LER has a low shrinkage force in the width direction W, the absorbent core 31 is less likely to shrink in the width direction W, and the front and rear fixing portions 811 are less likely to move inward in the width direction W. This ensures a space for receiving excrement in the width direction W, and prevents the excrement from spreading beyond the raised portion 82.

The inner continuous elastic member 55CI may be disposed in the front waist region S1 at a position rearward of the front end edge 16F of the side joint sections 16 in the front waist region S1 and at a distance from the front end edge 16F of 5% to 20% of the entire length of the absorbent article 1 in the front-rear direction L. This makes it possible to provide the inner continuous elastic member 55CI in a region where the depression of the lower end of the abdomen of the wearer is easily arranged. Since the depression of the lower end of the wearer's abdomen is likely to cause a gap between the wearer and the front outer cover 50A, the absorbent core 31 can be easily bent in the front-rear direction L along the depression of the lower end of the wearer's abdomen. Therefore, the region where the inner continuous elastic member 55CI is disposed is brought into close contact with the body of the wearer (specifically, the depression in the lower end of the abdomen) by contraction of the inner continuous elastic member 55 CI. This can prevent the excrement from reaching the outer side in the front-rear direction L than the rising portion 82. On the other hand, the absorbent core 31 is relatively easily separated from the body side by bending in the front-rear direction at a position inward in the front-rear direction L relative to the inner continuous elastic member 55 CI. Accordingly, the rising portion 82 can rise from the vicinity of the depression at the lower end of the abdomen, and thus can block the excrement spreading in the width direction W on the absorbent body 30.

The contractive force of the inner continuous elastic member 55CI overlapping the leg-side elastic member 85 in the thickness direction T may be greater than the contractive force of the leg-side elastic member 85. Thereby, the leg-side elastic members 85 can be firmly fixed at the positions where the leg-side elastic members 85 and the inner continuous elastic member 55CI overlap in the thickness direction T. The rising portion 82 can be reliably raised by the contraction force of the leg-side elastic member 85.

Further, the stretchable panel 55CS as the continuous elastic member 55C may be disposed inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811, and therefore, the inner end edge in the front-rear direction L of the stretchable panel 55CS may be disposed inward in the front-rear direction L from the inner end edge 811E of the front-rear fixing portion 811. Accordingly, the rising portion 82 can rise with the inner end edge of the stretchable sheet 55CS in the front-rear direction L as a base point, and thus can receive excrement spreading in the width direction W on the absorbent body 30. In the region where the stretch panel 55CS and the linear or string-like continuous elastic member 55CO overlap in the thickness direction T, the standing part 82 can be brought into close contact with the body, and therefore, the excrement can be prevented from reaching the position on the outer side in the front-rear direction L than the standing part 82.

(3) Modification example

Next, each modified example will be explained.

In the absorbent article 1 of modification 1, the leg elastic members 75 may be disposed not only in the front waist region S1 but also in the rear waist region S2 at positions overlapping the continuous elastic members 55C in the thickness direction T. Thus, the leg elastic members 75 are easily fixed in both the front waistline region S1 and the back waistline region S2. Therefore, the crotch region S3 can be lifted up to both the front waistline region S1 and the back waistline region S2 by contraction of the leg elastic members 75, and particularly, side leakage of excrement due to sagging of the crotch region S3 in a standing posture can be easily suppressed.

In the absorbent article 1 of modification 2, the inner continuous elastic member 55CI may be constituted by all the continuous elastic members 55C overlapping the absorbent core 31 in the thickness direction T. That is, all of the overlapping continuous elastic members 55CO may be disposed inward in the front-rear direction L from the inner end edge 811E in the front-rear direction L of the front-rear fixing portion 811. Thus, the absorbent core 31 can be brought into close contact with the body of the wearer by contraction of the inner continuous elastic member 55CI, and the excrement can be prevented from reaching a position further outward in the front-rear direction L than the absorbent core 31. Further, since the inner continuous elastic member 55CI is disposed at the inner side in the front-rear direction L than the inner end edge 811E of the front-rear fixing portion 811, it is possible to further prevent the excrement from reaching the outer side in the front-rear direction L than the rising portion 82. As a result, the excrement can be prevented from spreading in the width direction W from a position outside the rising portion 82 in the front-rear direction L.

(4) Other embodiments

The present invention has been described in detail with reference to the above embodiments, but it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and alterations without departing from the spirit and scope of the present invention defined by the claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

The above description has exemplified the case where the front waistline region S1 is the 1 st waistline region and the back waistline region S2 is the 2 nd waistline region, but is not limited thereto. Alternatively, the back waistline region S2 may be the 1 st waistline region, and the front waistline region S1 may be the 2 nd waistline region. In this case, in the lying position in the prone position, when the wearer lifts the legs, the leg elastic members 75 disposed in the crotch region S3 are lifted toward the rear waistline region S2. The crotch region S3 is lifted up toward the rear waistline region S2 side by the lifting up of the leg elastic members 75. As a result, sagging of the crotch region S3 can be suppressed, and the absorbent core 31 can be moved closer to the body of the wearer.

In the above description, the overlapped continuous elastic member 55CO is exemplified as an example of the continuous elastic member 55C overlapped with the leg elastic member 75 in the thickness direction T, but is not limited thereto. For example, the continuous elastic member 55C overlapping the leg elastic member 75 in the thickness direction T may be a continuous elastic member 55C not overlapping the absorbent core 31 in the thickness direction T. The continuous elastic member 55C overlapping the leg elastic member 75 in the thickness direction T may overlap the absorbent main body 20 (e.g., the front sheet 41 and the back sheet 42) without overlapping the absorbent core 31 in the thickness direction T. Alternatively, the continuous elastic member 55C overlapping the leg elastic member 75 in the thickness direction T may not overlap the absorbent main body 20.

In the above description, the case where the leg side sheet 47 is constituted by one sheet member has been described, but is not limited thereto. For example, the leg side sheet 47 may be formed of a plurality of sheet members. For example, the leg-side sheet 47 on one side in the width direction W and the leg-side sheet 47 on the other side in the width direction W may be constituted by different sheet members. In addition, for example, the 2 nd part 472 and the 3 rd part 473 of the leg side panel 47 may be formed of different sheet members. Therefore, the leg side sheet 47 may be constituted by a plurality of sheet members stacked.

In the above, the film may be disposed at a position outside the absorber 30 in the width direction W. For example, a film extending in the width direction W may be disposed between the leg elastic member 75 and the 4 th part 474 in the thickness direction T. Alternatively, a membrane may be provided in place of the 4 th part 474. This can prevent the excrement from seeping out to the position T2 on the non-skin surface side of the film, and thus can prevent the excrement from leaking.

In the above description, the case where the low area weight region LR is 0 is described, but the present invention is not limited thereto. The low basis weight region LR may also have an absorbent material basis weight greater than 0. For example, the absorbent material in the low basis weight region LR may have a basis weight lower than that of the absorbent material in the portion of the absorbent core 31 disposed in the crotch region S3. In the above, the description has been made on the case where the leg elastic member 75 overlaps the continuous elastic member 55C in the thickness direction T, but it is not limited thereto. For example, the leg elastic members 75 may be disposed at positions not overlapping with the continuous elastic members 55C in the thickness direction T. The absorbent article 1 may not have the leg gathers 70. The structures of the absorbent article 1 of the above-described embodiment, each modification, and the other embodiments can be appropriately combined.

The entire contents of japanese patent application No. 2019-204316 filed on 11/2019 are incorporated herein by reference.

Industrial applicability

According to this aspect, it is possible to provide an absorbent article having a continuous elastic member and a discontinuous elastic member in a waistline region, in which leakage of excrement due to sagging of a crotch region can be suppressed.

Description of the reference numerals

1. An absorbent article; 16. a side joint part; 17. a waist opening; 18. a leg opening; 20. an absorbent main body; 30. an absorbent body; 31. an absorbent core; 32. a core cladding; 41. a surface sheet; 42. a back sheet; 47. a leg side panel; 50. an exterior body; 50A, a front outer package; 50B, a rear outer package; 55. a waist elastic member; 55C, a continuous elastic member; 55CI, an inner continuous elastic member; 55CIA, 1 st inner continuous elastic member (innermost continuous elastic member); 55CIB, inner 2 continuous elastic member; 55CN, non-overlapping continuous elastic member; 55CO, overlapping continuous elastic members; 55CS, a retractable sheet; 55N, a discontinuous elastic member; 55NA, inner discontinuous elastic member; 55NB, outer discontinuous elastic member; 70. a leg gather; 75. a leg elastic member; 80. a leg side gather; 81. a fixed part; 82. a rising part; 85. a leg-side elastic member; 811. a front and rear fixing portion.

Claims

1. An absorbent article having:

a front-back direction, a thickness direction, and a width direction orthogonal to the front-back direction;

a waistline region composed of a 1 st waistline region and a 2 nd waistline region; and a crotch region sandwiched by the 1 st waistline region and the 2 nd waistline region in the front-rear direction;

an absorbent main body extending from the crotch region in the front-back direction at least to the 1 st waistline region; and

a waist elastic member disposed in the waistline region in an extended state in the width direction,

the waist elastic member has: a continuous elastic member continuously extending from one outer side portion to the other outer side portion in the width direction of the 1 st waistline region; and

a discontinuous elastic member that does not continuously extend in the width direction at least at the center in the width direction of the 1 st waistline region,

the absorbent main body has an absorbent core containing an absorbent material and leg side gathers capable of rising toward the skin surface side,

the leg side gather has: a rising portion that can rise by contraction of a leg-side elastic member disposed in an extended state in the front-rear direction; and

a front-rear fixing portion that fixes a leg side sheet disposed at a position further to the outside in the width direction than a center in the width direction of the absorbent core, at a position further to the outside in the front-rear direction than the rising portion,

the continuous elastic member has an inner continuous elastic member disposed inward in the front-rear direction from the inner end edge in the front-rear direction of the front-rear fixing portion.

2. The absorbent article of claim 1,

the inner continuous elastic member is constituted by a plurality of elastic members adjacent in the front-rear direction.

3. The absorbent article according to claim 1 or 2, wherein,

the inner continuous elastic member is composed of all the continuous elastic members overlapping with the absorbent core in the thickness direction.

4. The absorbent article according to any one of claims 1 to 3, wherein,

in the waist elastic member, a contractive force of the inner continuous elastic member is maximized.

5. The absorbent article according to any one of claims 1 to 4, wherein,

the inner continuous elastic member has an innermost continuous elastic member disposed at an innermost position in the front-rear direction among the inner continuous elastic members,

the contraction force of the innermost continuous elastic member is largest in the waist elastic member.

6. The absorbent article according to any one of claims 1 to 5, wherein,

the absorbent article has an absorbent body including the absorbent core,

the absorbent body has a low basis weight region in which the basis weight of the absorbent material is lower than that of the surroundings,

the inner continuous elastic member overlaps with the low area weight region in the thickness direction.

7. The absorbent article according to any one of claims 1 to 6, wherein,

the absorbent core, the standing portion, and the inner continuous elastic member overlap in the thickness direction.

8. The absorbent article according to any one of claims 1 to 7, wherein,

the absorbent core has a compressed portion obtained by compressing the absorbent core in the thickness direction,

the compressed portion, the raised portion, and the inner continuous elastic member overlap in the thickness direction.

9. The absorbent article according to any one of claims 1 to 8, wherein,

the inner edges of the front and rear fixing portions are disposed in a region where the discontinuous elastic member does not continuously extend in the width direction.

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

the 1 st waistline region is a front waistline region disposed on the abdominal side of a wearer, the 2 nd waistline region is a rear waistline region disposed on the back side of the wearer,

the absorbent article has: a front outer cover disposed in the front waistline region;

a rear outer cover disposed in the rear waistline region;

and a side joining part joining an outer side part in the width direction of the front exterior body and an outer side part in the width direction of the rear exterior body,

in the front waist region, the inner continuous elastic member is disposed rearward of a front end edge of the side joint section in the front waist region and at a distance from the front end edge of the side joint section of 5% to 20% of the total length of the absorbent article in the front-rear direction.

11. The absorbent article according to any one of claims 1 to 10, wherein,

the contraction force of the inner continuous elastic member overlapping with the leg side elastic member in the thickness direction is larger than the contraction force of the leg side elastic member.