JP5575543B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article that receives excrement from a wearer.

  Conventionally, in an absorbent article that receives excrement from a wearer, the width of the absorbent core in the left-right direction is reduced in the middle part facing the crotch part of the wearer to improve the wearing feeling. .

  In the pants-type disposable diaper of Patent Document 1, six linear grooves extending from one central point of the crotch covering area to the side edges on the left and right sides are provided radially in the body fluid absorption part, Of the three grooves, the central groove is parallel to the left-right direction, and the remaining two grooves are arranged in a V shape on both front and rear sides of the central groove. In the disposable diaper, since both side portions of the body fluid absorbing portion are bent along the three grooves so as to protrude inward in the left-right direction, the width of the body fluid absorbing portion in the crotch covering region is narrowed.

  In the absorbent article of Patent Document 2, four linear grooves arranged radially in the crotch region are provided in the absorbent core, and the ends of each groove are the left and right side edges, the front edge, and the rear edge of the absorbent core. Located inside. In the absorbent article, both sides of the absorbent core are bent inward in the left-right direction along these grooves, so that the shape in the crotch region of the absorbent core is adjusted to a basin shape. Moreover, in the absorbent article of patent document 2, a short (10 mm or less) additional notch which goes inward from the right-and-left both-sides edge of an absorption core is provided in an absorption core, and a deformation | transformation in the crotch area of an absorption core is made easy. The

JP 2003-265511 A JP 2008-521481 A

  By the way, in the disposable diaper of patent document 1, since the right and left both sides of the bodily fluid absorption part project inward greatly in the crotch covering area, the space between the disposable diaper and the wearer in the crotch covering area is small. Become. For this reason, the accommodation capacity of excrement such as stool in the crotch covering region is insufficient, and the excrement may leak to the outside.

  In the absorbent article of patent document 1 and patent document 2, when the wearer of the absorbent article himself or a nurse or caregiver wearing the absorbent article on the wearer wears the absorbent article, the absorbent core Since it is necessary to bend both right and left sides along the groove, the mounting operation of the absorbent article becomes complicated. Moreover, in the case of a pants-type disposable diaper, the absorbent core can be bent at the time of manufacturing the disposable diaper, but the manufacturing process of the disposable diaper is complicated.

  The present invention has been made in view of the above problems, and has an object to naturally or easily deform a portion in the vicinity of an intermediate portion of an absorbent article into a concave shape so as to increase the capacity of excreta in the intermediate portion. It is said.

The invention according to claim 1 is an absorbent article that receives excrement from a wearer, a liquid-permeable top sheet, a water-repellent or liquid-impermeable back sheet, the top sheet, and the bag An absorbent core disposed between the sheet and a pair of elastic members disposed on the outer side in the thickness direction of the absorbent core and extending in the longitudinal direction of the absorbent core and acting on the absorbent core in the longitudinal direction The back sheet has a laminated structure in which a plurality of sheet members are laminated, the pair of elastic members are disposed between the plurality of sheet members, and the absorbent core is a wearer's An intermediate portion facing the crotch portion has a pair of weakened regions formed from both sides toward the center line facing the longitudinal direction, and the pair of elastic members overlaps the pair of weakened regions.

Invention of Claim 2 is an absorbent article of Claim 1, Comprising: Each width | variety of a pair of said weakening area | region becomes small as it goes to the said centerline.

The invention described in claim 3 is the absorbent article according to claim 1 or 2, in the pair of weakened regions, the absorbent forming the absorbent core between said topsheet and said backsheet There is no material.

Invention of Claim 4 is an absorbent article in any one of Claim 1 thru | or 3 , Comprising: The said absorption core goes to the said centerline from the said both sides of the said absorption core in the said intermediate part. It further has another pair of weakened areas.

The invention according to claim 5 is the absorbent article according to claim 4 , wherein the pair of weakened regions and the other pair of weakened regions are mutually in the longitudinal direction toward the center line. Get closer.

The invention according to claim 6 is the absorbent article according to any one of claims 1 to 5 , wherein the absorbent article is attached to the inside of the exterior article worn by the wearer.

  In this invention, the site | part of the intermediate part vicinity of an absorbent article can be changed into a concave shape naturally or easily, and the accommodation capacity of the excrement in an intermediate part can be increased.

It is a top view of the auxiliary | assistant absorber which concerns on 1st Embodiment. It is sectional drawing of an auxiliary | assistant absorber. It is a top view of the auxiliary | assistant absorber which concerns on 2nd Embodiment.

  FIG. 1 is a plan view showing the auxiliary absorbent device 1 according to the first embodiment of the present invention in an unfolded state. The auxiliary absorbent device 1 is an absorbent article that is attached to the inside (that is, the wearer side) of an exterior article such as a disposable diaper worn by the wearer and receives excrement from the wearer. In FIG. 1, the auxiliary | assistant absorber 1 is drawn with the surface of the side which contact | connects a wearer at the time of wear on this side.

  FIG. 2 is a cross-sectional view of the auxiliary absorbent device 1 cut along a plane perpendicular to the longitudinal direction (that is, the vertical direction in FIG. 1) at the position AA shown in FIG. As shown in FIG. 1 and FIG. 2, the auxiliary absorbent device 1 is on the substantially sheet-shaped absorbent body 2 and on both sides of the absorbent body 2 (that is, both sides in the left-right direction perpendicular to the longitudinal direction). And a pair of side seats 3 that extend approximately the entire length in the longitudinal direction of the absorbent main body 2.

  The upper part 201 and the lower part 203 in FIG. 1 of the absorbent main body 2 are parts in contact with the skin of the wearer's abdomen and dorsal side, respectively. In the following description, “front part 201” and This is referred to as “rear part 203”. Further, a portion 202 that is continuous between the front portion 201 and the rear portion 203 between the front portion 201 and the rear portion 203 and faces the crotch portion of the wearer is referred to as an “intermediate portion 202”. In the auxiliary absorbent device 1, the absorbent body 2 has a front part 201, an intermediate part 202, and a rear part 203 in order in the longitudinal direction, and the width in the left-right direction of the front part 201 and the rear part 203 is the width of the intermediate part 202. Bigger than. In other words, the absorbent main body 2 is a so-called hourglass shape in plan view.

  As shown in FIGS. 1 and 2, the absorbent main body 2 includes a liquid-permeable top sheet 21, a water-repellent or liquid-impervious back sheet 23, and a space between the top sheet 21 and the back sheet 23. An absorbent core 22 is provided. As shown in FIG. 2, the back sheet 23 has a laminated structure in which a plurality of sheet members (two sheet members of the first sheet 231 and the second sheet 232 in the present embodiment) are laminated. The first sheet 231 faces the top sheet 21 and the absorbent core 22, and the second sheet 232 has the same shape as the first sheet 231, and the outer surface of the first sheet 231 (that is, the wearer, the top sheet 21, and the absorption) It is joined to the surface opposite to the core 22). In FIG. 2, for convenience of illustration, each component of the auxiliary absorber 1 is drawn away in the thickness direction. Moreover, in FIG. 1, the outline of the absorption core 22 is drawn with the thick broken line, in order to make an understanding of a figure easy. As shown in FIG. 1, the width of the absorbent core 22 in the front part 201 and the rear part 203 is larger than the width of the absorbent core 22 in the intermediate part 202. In other words, the absorption core 22 has a so-called hourglass shape.

  The absorbent core 22 has two pairs of weakened regions in the intermediate portion 202 that are directed from the left and right sides to the inside in the left-right direction (that is, formed from both sides toward the center line 222 of the absorbent core 22 facing the longitudinal direction). 221. The weakened region 221 is a slit provided in the absorbent core 22, and there is no absorbent material that forms the absorbent core 22 between the topsheet 21 and the backsheet 23 in the weakened region 221. The pair of weakened regions 221 located on the front side in the longitudinal direction and the other pair of weakened regions 221 located on the rear side approach each other in the longitudinal direction of the auxiliary absorbent device 1 toward the center line 222.

  The width of each of the four weakened regions 221 (that is, the distance in the longitudinal direction between the front and rear edges of the weakened region 221) decreases toward the center line 222. In other words, the four weakened areas 221 radially expand from approximately the center of the substantially rectangular area whose apex is the outer end in the left-right direction of the four weakened areas 221 (that is, approximately the center of the intermediate part 202). Are arranged as follows. Further, the length in the left-right direction of each weakened region 221 is preferably ¼ or more and less than ½ of the distance between the left and right side edges at approximately the center of the intermediate portion 202. Note that the length in the left-right direction of the weakened region 221 is the distance in the left-right direction between the side edge at approximately the center of the intermediate portion 202 and the inner end of the weakened region 221.

  As shown in FIG. 2, the top sheet 21 is joined to the back sheet 23 via a hot melt adhesive around the absorbent core 22. Further, the laterally outer portion 313 (hereinafter referred to as “fixing portion 313”) of the side seat 3 is hot on the side end portion of the top sheet 21 and the side end portion of the back sheet 23 over the entire length in the longitudinal direction. Joined via melt adhesive. As shown in FIGS. 1 and 2, the side sheet 3 includes a side sheet main body 31 and a side wall that extends in the longitudinal direction by being joined to a free end that is an inner edge portion in the left-right direction of the side sheet main body 31 by a hot melt adhesive. A partial elastic member 32 is provided. Each side wall elastic member 32 has two elastic elements. Examples of the hot melt adhesive include polyolefin-based, rubber-based, and vinyl acetate-based adhesives. Note that the bonding between the top sheet 21 and the back sheet 23 and the bonding between the side sheet 3 and the top sheet 21 and the back sheet 23 may be performed by thermal fusion bonding, ultrasonic bonding, or the like.

  As shown in FIG. 2, a portion 311 on the inner side in the left-right direction of each side seat 3 (that is, a portion continuous to the fixing portion 313 on the inner side of the fixing portion 313, hereinafter referred to as “side wall portion 311”). Is not joined to the top sheet 21 (and other configurations) except for both ends in the longitudinal direction. In the auxiliary absorbent device 1, the side wall portion elastic member 32 joined to the free end contracts, so that a pair of side wall portions 311 provided along the longitudinal direction is formed on both side portions of the absorbent body body portion 2. It becomes a pair of three-dimensional gathers that stand up toward the wearer from the main body 2 and abut on the vicinity of the base of the wearer's leg. Thereby, in the auxiliary absorber 1, leakage of urine etc. from around the legs is prevented.

  As shown in FIG. 1, the absorbent main body 2 includes a pair of core elastic members 26 that extend in the longitudinal direction while overlapping the two pairs of weakened regions 221 of the absorbent core 22. Has three elastic elements that extend in the longitudinal direction and are arranged in parallel in the left-right direction. In other words, the three elastic elements of each core portion elastic member 26 are disposed between the inner end and the outer edge of the weakened region 221 in the left-right direction. The pair of core elastic members 26 extends forward from the pair of weakened areas 221 on the front side, and extends rearward from the pair of weakened areas 221 on the rear side. As shown in FIG. 2, the core elastic member 26 is a first sheet 231 of the back sheet 23 on the outer side in the thickness direction of the absorbent core 22 (that is, on the outer surface side opposite to the wearer and the top sheet 21). And the second sheet 232, and extends in the longitudinal direction along the outer surface of the absorbent core 22. The pair of core portion elastic members 26 are joined to the first sheet 231 and the second sheet 232 in a stretched state by a hot melt adhesive (that is, indirectly joined to the outer surface of the absorbent core 22), and to the absorbent core 22. A contraction force in the longitudinal direction is applied.

  The top sheet 21 is a liquid-permeable sheet material that quickly captures the moisture of excrement from the wearer and moves it to the absorbent core 22. The top sheet 21 is, for example, a liquid-permeable nonwoven fabric formed of hydrophobic fibers (polypropylene, polyethylene, polyester, polyamide, nylon, etc.) whose surfaces are hydrophilically treated with a surfactant. Point bond nonwoven fabric, air-through nonwoven fabric, and spunbond nonwoven fabric are used. In addition, as the top sheet 21, a nonwoven fabric (for example, a spunlace nonwoven fabric) formed of hydrophilic fibers such as cellulose, rayon, or cotton may be used.

  The absorbent core 22 is made of an absorbent material obtained by mixing pulverized hydrophilic fibers such as pulp fibers and cellulose fibers with a super absorbent polymer such as granular super absorbent polymer (SAP) and super absorbent fibers. It is formed by wrapping with tissue paper, liquid permeable nonwoven fabric, etc., and absorbs moisture that has passed through the top sheet 21 to quickly fix it. Tissue paper and liquid-permeable nonwoven fabric wrapping the absorbent material are bonded to the hydrophilic fiber and the superabsorbent material with a hot melt adhesive, and the shape of the hydrophilic fiber is lost. , Dropping off after water absorption) is prevented. In the present embodiment, the absorbent core 22 includes pulp fibers and SAP.

  As the back sheet 23, a water-repellent or liquid-impervious nonwoven fabric (for example, a spunbond nonwoven fabric, a meltblown nonwoven fabric, an SMS (spunbond / meltblown / spunbond) nonwoven fabric) formed of hydrophobic fibers, A liquid-impervious plastic film or a laminated sheet in which these nonwoven fabrics and a plastic film are laminated is used, and the moisture or the like of excreta reaching the back sheet 23 oozes out of the absorbent body 2. It is prevented. In the present embodiment, a plastic film is used as the first sheet 231 of the back sheet 23, and a nonwoven fabric is used as the second sheet 232. From the viewpoint of preventing wear of the auxiliary absorbent 1 and improving the comfort of the wearer, it is preferable to use a plastic film having moisture permeability (breathability) as the first sheet 231.

  As the side sheet main body 31, for example, a water-repellent or liquid-impervious nonwoven fabric (spunbond nonwoven fabric, melt blown nonwoven fabric, SMS nonwoven fabric, or the like) formed of hydrophobic fibers is used. As the side wall elastic member 32 and the core elastic member 26 (elastic elements thereof), for example, polyurethane yarn, belt-like polyurethane film, yarn-like or belt-like natural rubber, etc. are used. Used as an elastic member.

  In the auxiliary absorbent 1, the side wall elastic member 32 and the core elastic member 26 contract, so that the front part 201 and the rear part 203 of the absorbent body 2 shown in FIG. And bend. More specifically, the absorbent main body 2 includes the inner end portions of the pair of weakened regions 221 on the front side and extends in substantially parallel to the left-right direction, and the inside of the pair of weakened regions 221 on the rear side. The front portion 201 and the rear portion 203 rise upward as it bends in a band-like region including the end portion and extending substantially parallel to the left-right direction. The intermediate portion 202 includes the inner end portions of the two weakened regions 221 on the right side and includes a band-shaped region extending substantially parallel to the longitudinal direction, and the inner end portions of the two weakened regions 221 on the left side and the longitudinal direction. Are bent at a band-like region extending substantially parallel to the right side, and the right and left side end portions of the intermediate portion 202 rise upward.

  As described above, in the auxiliary absorbent device 1, due to the contraction of the core elastic member 26, the absorbent body portion 2 is a region defined by the weakened region 221 (that is, a substantially rectangular shape passing through the inner end portions of the four weakened regions 221. It is bent at the annular region), and both end portions of the intermediate portion 202, the front portion 201 and the rear portion 203 rise upward. Thereby, the site | part of the intermediate part 202 vicinity of the auxiliary | assistant absorber 1 deform | transforms into a concave shape (what is called a cup shape) naturally or easily. As a result, the space between the auxiliary absorbent device 1 and the wearer in the intermediate portion 202 is largely maintained, and the capacity for excrement such as stool in the intermediate portion 202 can be increased.

  As described above, in the auxiliary absorbent 1, the width of each weakened region 221 decreases toward the center line 222 of the absorbent core 22, so that when the portion near the intermediate portion 202 is deformed into a concave shape, the front portion 201 and The side end portion of the absorbent core 22 in the rear portion 203 (that is, the outer portion in the left-right direction) is easily deformed toward the wearer side and the inner side in the left-right direction. Thereby, the site | part of the intermediate part 202 vicinity deform | transforms into a concave shape still more easily. Moreover, since each weakened area | region 221 is a slit in which the absorptive material which forms the absorption core 22 does not exist, the rigidity of the weakened area | region 221 is very low compared with the rigidity of parts other than the weakened area | region 221 of the absorption core 22. Become. As a result, the concave deformation of the portion near the intermediate portion 202 can be facilitated.

  In the auxiliary absorbent device 1, if at least a pair of weakened regions 221 formed from both side portions of the absorbent core 22 is provided in the intermediate portion 202, a region near the intermediate portion 202 is caused by contraction of the pair of core portion elastic members 26. Although it is naturally or easily deformed into a concave shape, in order to make the deformation near the intermediate portion 202 into a concave shape easier, two or more pairs arranged in the longitudinal direction as in the present embodiment The weakened region 221 is preferably provided in the absorbent core 22. In addition, in order to further facilitate the deformation of the portion in the vicinity of the intermediate portion 202, the pair of weakened regions 221 and the other pair of weakened regions 221 are mutually in the longitudinal direction toward the center line 222 of the absorbent core 22. It is more preferable to approach.

  In the auxiliary absorbent 1, since the pair of core portion elastic members 26 are arranged on the outer surface side of the absorption core 22, it is much easier to deform the portion near the intermediate portion 202 into a concave shape due to the contraction of the core portion elastic member 26. Become. Further, the back sheet 23 has a laminated structure in which a plurality of sheet members (in the present embodiment, the first sheet 231 and the second sheet 232) are laminated, and the pair of core portion elastic members 26 includes the plurality of sheets. By arrange | positioning between members, manufacture of the auxiliary | assistant absorber 1 can be made easy, arrange | positioning a pair of core part elastic member 26 on the outer surface side of the absorption core 22. FIG.

  In the auxiliary absorbent device 1, the length in the left-right direction of each weakened region 221 is equal to or greater than ¼ of the distance between the left and right side edges at approximately the center of the intermediate portion 202. The part stands up to the wearer side. Thereby, since the site | part of the intermediate part 202 vicinity of the auxiliary | assistant absorber 1 deform | transforms into a comparatively large concave shape, the accommodation capacity of the excrement in the intermediate part 202 can be increased more.

  Next, an auxiliary absorbent device according to the second embodiment of the present invention will be described. FIG. 3 is a plan view showing the auxiliary absorbent 1a according to the second embodiment. The auxiliary absorbent device 1a has the same structure as the auxiliary absorbent device 1 shown in FIGS. 1 and 2 except that the shape of the weakened region is different. In the following description, the same symbol is given to the configuration of the auxiliary absorbent 1a corresponding to each configuration of the auxiliary absorbent 1.

  As shown in FIG. 3, in the auxiliary absorbent 1a, the absorbent core 22 of the absorbent main body 2 has two weakened regions 221a. Each weakened region 221a has a linear shape parallel to the left-right direction and extends from one of the left and right side edges of the absorbent core 22 to the other. Each weakened region 221a can be regarded as a pair of weakened regions whose length in the left-right direction is equal to ½ of the distance between the left and right side edges of the intermediate portion 202. The pair of weakened regions is the center line of the absorbent core 22 It is formed from both sides toward 222. The weakened region 221a is a slit provided in the absorbent core 22 like the weakened region 221, and in the weakened region 221a, there is an absorbent material that forms the absorbent core 22 between the top sheet 21 and the back sheet 23. do not do. Accordingly, the absorbent core 22 is divided into three core elements arranged in the longitudinal direction by the two weakened regions 221a.

  Also in the auxiliary absorbent 1a, as in the first embodiment, the absorbent main body 2 is bent along the weakened region 221a due to the contraction of the core elastic member 26 that overlaps the weakened region 221a. The end part, the front part 201 and the rear part 203 rise upward. Thereby, the site | part of the intermediate part 202 vicinity of the auxiliary | assistant absorber 1a deform | transforms into a concave shape (what is called a cup shape) naturally or easily. As a result, the space between the auxiliary absorbent device 1a and the wearer in the intermediate portion 202 is largely maintained, and the capacity for excrement such as stool in the intermediate portion 202 can be increased.

  In addition, since each weakened region 221a is a slit in which the absorbent material that forms the absorbent core 22 is not present, the rigidity of the weakened region 221a is very low compared to the stiffness of parts other than the weakened region 221a of the absorbent core 22. Become. As a result, the concave deformation of the portion near the intermediate portion 202 can be facilitated.

  In the auxiliary absorbent 1a, if one weakened region 221a is provided in the intermediate portion 202, a portion near the intermediate portion 202 is naturally or easily deformed into a concave shape due to contraction of the pair of core portion elastic members 26. However, in order to make it easier to deform the portion near the intermediate portion 202 into a concave shape, two or more weakened regions 221a arranged in the longitudinal direction are provided in the absorbent core 22 as in the present embodiment. It is preferable.

  In the auxiliary absorbent 1a, as in the first embodiment, the pair of core elastic members 26 are arranged on the outer surface side of the absorbent core 22, and therefore the portion near the intermediate portion 202 due to the contraction of the core elastic member 26. It becomes much easier to deform into a concave shape. Further, the back sheet 23 has a laminated structure in which a plurality of sheet members are laminated, and the pair of core part elastic members 26 are disposed between the plurality of sheet members, whereby the pair of core part elastic members 26 are arranged. It is possible to facilitate the manufacture of the auxiliary absorbent device 1a while arranging the absorbent core 22 on the outer surface side of the absorbent core 22.

  As mentioned above, although embodiment of this invention has been described, this invention is not limited to the said embodiment, A various change is possible.

In the auxiliary absorbers 1 and 1a according to the above-described embodiment, the back sheet 23 may be a laminate of three or more sheet members. For example, another nonwoven fabric may be laminated on the first sheet 231 and the second sheet 232 described above, and the core elastic member 26 may be joined between the nonwoven fabric and the first sheet 231. In this case, the nonwoven fabric may be smaller than the first sheet 231 as long as it has a size that covers the pair of core portion elastic members 26. In the related art of the present invention, the back sheet 23 may be a single-layer sheet member. In the related technology, for example, the pair of core elastic members 26 may be disposed between the outer surface of the absorbent core 22 and the backsheet 23 and directly joined to the outer surface of the absorbent core 22 and the backsheet 23. . Further, the pair of core elastic members 26 are disposed between the inner surface of the absorbent core 22 and the top sheet 21 on the inner side in the thickness direction of the absorbent core 22 (that is, on the inner surface side that is the wearer or the top sheet 21 side). It may be arranged and joined directly to the inner surface of the absorbent core 22 and the topsheet 21. Alternatively, when the top sheet 21 is a laminate of a plurality of sheets, the pair of core portion elastic members 26 are indirectly disposed on the inner surface of the absorbent core 22 by being disposed and bonded between the plurality of sheets. May be joined. Further, when the absorbent core 22 is a laminated body of a plurality of core members, the pair of core portion elastic members 26 are disposed between the plurality of core members and directly joined to the absorbent core 22. Also good. In the above embodiment, the core elastic member 26 has three elastic elements each extending in the longitudinal direction and arranged in parallel in the left-right direction . In 1a, the number of elastic elements may be four or more or two or less.

  The shape and arrangement of the weakened regions 221 and 221a are not limited to the above embodiment, and may be variously changed. Further, the weakened regions 221 and 221a do not necessarily need to be slits provided in the absorbent core 22, and may be any regions in the absorbent core 22 that have lower rigidity than the surrounding portions. For example, the absorbent material that forms the absorbent core 22 is also disposed in the weakened regions 221 and 221a, and the thickness and density of the absorbent material in the weakened regions 221 and 221a are greater than the thickness and density of the absorbent material in the surrounding regions. It may be made smaller. Or the absorptive material arrange | positioned in the weakening area | regions 221 and 221a may be crushed with a roller etc., and may be made thin.

  In the auxiliary absorbent device 1, 1 a, the portion of the absorbent core 22 other than the region defined by the weakened regions 221, 221 a is larger when the rigidity difference between the weakened regions 221, 221 a and the surrounding regions is larger. Is prevented from being bent, and the portion near the intermediate portion 202 is easily deformed into a desired concave shape. Therefore, the structure of the auxiliary absorbers 1 and 1a is particularly suitable for an auxiliary absorber having an absorption core having a certain degree of rigidity. Specifically, the structure of the auxiliary absorbent devices 1 and 1a is particularly suitable for an auxiliary absorbent device in which pulverized pulp fibers and cellulose fibers are used as the main absorbent material of the absorbent core. In addition, if the part in the vicinity of the intermediate part is naturally or easily deformed into a desired concave shape, a dispersion of granular SAP on a nonwoven fabric (so-called polymer sheet) is used as an absorbent core. May be.

  The structure of the auxiliary absorbent device 1, 1 a according to the above embodiment is, for example, a tape-type disposable diaper that is worn around a waist around a part that abuts on the wearer's stomach and a part that abuts on the back side. Alternatively, the present invention may be applied to a pants-type disposable diaper having a trunk opening at the upper end and a pair of leg openings at the lower end. As described above, the structure of the auxiliary absorbent devices 1 and 1a may be applied to other absorbent articles such as disposable diapers. However, as described above, the capacity of the excrement in the intermediate portion 202 is increased in the structure. Therefore, the structure is particularly suitable for an auxiliary absorbent device that is attached to the inside of an exterior article such as a disposable diaper and directly receives excrement.

DESCRIPTION OF SYMBOLS 1,1a Auxiliary absorber 21 Top sheet 22 Absorption core 23 Back sheet 26 Core part elastic member 202 Middle part 221, 221a Weak area 222 Center line 231 1st sheet 232 2nd sheet

Claims (6)

An absorbent article that receives excrement from a wearer,
A liquid-permeable topsheet,
A water-repellent or liquid-impervious backsheet;
An absorbent core disposed between the top sheet and the back sheet;
A pair of elastic members disposed on the outer side in the thickness direction of the absorbent core and extending in the longitudinal direction of the absorbent core and acting on the absorbent core in the longitudinal direction;
With
The back sheet has a laminated structure in which a plurality of sheet members are laminated,
The pair of elastic members are disposed between the plurality of sheet members,
The absorbent core has a pair of weakened regions formed from both sides toward the center line facing the longitudinal direction at an intermediate portion facing the wearer's crotch portion, and the pair of elastic members is the pair of elastic members. An absorbent article characterized by overlapping the weakened region. The absorbent article according to claim 1 ,
The width of each of a pair of weakening area | region becomes small as it goes to the said centerline, The absorbent article characterized by the above-mentioned. The absorbent article according to claim 1 or 2 ,
In the pair of weakened regions, there is no absorbent material that forms the absorbent core between the top sheet and the back sheet. The absorbent article according to any one of claims 1 to 3 ,
The absorbent article according to claim 1, wherein the absorbent core further includes another pair of weakened regions from the both side portions of the absorbent core toward the center line in the intermediate portion. The absorbent article according to claim 4 ,
The absorbent article, wherein the pair of weakened areas and the other pair of weakened areas approach each other in the longitudinal direction toward the center line. The absorbent article according to any one of claims 1 to 5 ,
An absorbent article that is an auxiliary absorbent device that is attached to the inside of an exterior article worn by a wearer.

Images