CN219184552U - Absorbent article - Google Patents

Abstract

The absorbent article comprises an absorber (8), a cover sheet (4) and a plurality of stretchable parts. The plurality of expansion/contraction parts include a 1 st expansion/contraction part formed by a plurality of expansion/contraction members and a 2 nd expansion/contraction part formed by a plurality of expansion/contraction members adjacent to the 1 st expansion/contraction part with a spacing therebetween, and the spacing between the 1 st expansion/contraction part and the 2 nd expansion/contraction part in the vicinity of the adhesive part of the cover sheet (4) is equal to or less than a value obtained by dividing the 1 st expansion/contraction part by four in the longitudinal direction and dividing the spacing between the expansion/contraction member arranged at the outermost side and the expansion/contraction member arranged at the innermost side among the expansion/contraction members constituting the 2 nd to 4 th regions from the outer side in the longitudinal direction by the number of the expansion/contraction members constituting the 2 nd to 4 th regions of the 1 st expansion/contraction part.

Description

Absorbent article

Technical Field

The present utility model relates to an absorbent article.

Background

Underpants type disposable diapers for adults are known (japanese patent application laid-open No. 2007-29609).

Disclosure of Invention

An example of an absorbent article is a pant diaper including waist gathers provided on the waist of a wearer and leg gathers provided on the leg bands of the wearer, and these gathers are used to enclose the waist and leg bands to follow the movements of the wearer. However, these pleats are each independently wrapped around the waist and leg bands of the wearer, and there is a problem in that positional displacement is likely to occur.

The purpose of the present utility model is to provide an absorbent article that is less likely to shift during wear.

In order to solve the above-described problem, in the present utility model, the distance between the elastic members, the arrangement regions of which constitute the waist gather and the leg gather, is narrowed at the portion where the waist gather and the leg gather are closest.

Specifically, an aspect of the present utility model is an absorbent article having a length along a longitudinal direction and a width along a width direction orthogonal to the longitudinal direction. The absorbent article comprises: an absorber disposed so that the longitudinal direction is along the front-rear direction of the wearer; a cover sheet disposed on the non-skin side of the absorber to form an outer surface of the absorbent article, the cover sheet having an adhesive portion for adhering widthwise ends to each other in a lengthwise end region; and a plurality of stretchable parts disposed in the cover sheet and in an extended state, wherein the plurality of stretchable parts include a 1 st stretchable part and a 2 nd stretchable part, the 1 st stretchable part is formed of a plurality of stretchable members which are substantially parallel to each other and apply force to the waist of the wearer, the 2 nd stretchable part is disposed on the crotch side of the adhesive part and adjacent to the 1 st stretchable part at a distance from each other, and is formed of a plurality of stretchable members which are substantially parallel to each other and apply force to an opening portion into which the leg of the wearer enters, the distance between the 1 st stretchable part and the 2 nd stretchable part in the vicinity of the adhesive part is equal to or less than a value obtained by dividing the 1 st stretchable part by a length of the stretchable member disposed on the outer side in the length direction and the stretchable member disposed on the inner side in the length direction from the outer side in the length direction by a length of the fourth stretchable member disposed on the length direction from the inner side in the length direction by a length of the stretchable member disposed on the inner side in the length direction from the length direction by a length of the fourth stretchable member disposed on the outer side in the length direction by a length of the length direction from the length of the stretchable member disposed on the outer side in the length direction by a length of the length from the length of the stretchable part.

In the absorbent article according to the aspect of the invention, the distance between the 1 st stretchable portion and the 2 nd stretchable portion in the vicinity of the adhesive portion may be equal to or less than a value obtained by dividing a distance between a stretchable member disposed on the outermost longitudinal side and a stretchable member disposed on the innermost longitudinal side of the stretchable members constituting the 2 nd stretchable portion by the number of stretchable members constituting the 2 nd stretchable portion at the widthwise outer end portions of the plurality of stretchable portions disposed on the widthwise inner side of the adhesive portion.

In the absorbent article according to the aspect described above, at the outer end portion in the width direction of the plurality of stretchable portions disposed further inward in the width direction than the adhesive portion, the interval between stretchable members constituting the 4 th region from the outer side in the length direction, which constitute the region closest to the inner side in the length direction when the 1 st stretchable portion is divided into four in the length direction, may be narrower than the interval between stretchable members constituting the 2 nd and 3 rd regions from the outer side in the length direction.

In the absorbent article according to the above aspect, the 1 st stretchable portion and the 2 nd stretchable portion may be disposed parallel to each other in a predetermined region in the width direction from the adhesive portion on at least one of the abdomen side of the wearer and the back side of the wearer.

In the absorbent article according to the above aspect, even when a cover sheet having a form of a plurality of sizes matching the wearer's physique is used, the 1 st stretchable portion and the 2 nd stretchable portion at the bonded portion may have the same interval or a difference between the 1 st stretchable portion and the 2 nd stretchable portion may be within a predetermined range in the form of at least 2 sizes.

In the absorbent article according to the aspect described above, the plurality of stretchable members may be linear stretchable members.

In the absorbent article according to the above aspect, the absorbent body may include: an approximately hourglass-shaped absorbent core having a widened portion that widens from a crotch portion toward an abdomen portion and a back portion; and a substantially rectangular core wrap sheet covering the absorbent core, wherein the 2 nd expansion portion does not traverse the absorbent core on the back side, and overlaps the core wrap sheet on the outer side of the widened portion of the absorbent core.

In the absorbent article according to the aspect described above, all or half of the plurality of stretchable members constituting the 2 nd stretchable portion may be overlapped with the core wrap sheet mainly on the crotch side of the widened portion.

In the absorbent article according to the aspect described above, the 2 nd expansion and contraction portion may apply force to the absorbent core to the outer side in the width direction over the entire longitudinal direction of the widened portion.

In the absorbent article according to the aspect described above, the 2 nd expansion and contraction portion may apply a force to the absorbent core outward in the width direction on the crotch side of the widened portion.

In the absorbent article according to the above aspect, the 2 nd stretchable portion may be contracted in the width direction in a region overlapping the core wrap sheet.

In the absorbent article according to the aspect described above, the 2 nd stretchable portion may overlap so as to traverse the absorbent core in the width direction on the abdomen side.

In the absorbent article according to the aspect described above, the extending region of the 2 nd stretchable portion on the abdomen side may be a region where the cover sheet and the absorber (8) are not bonded. That is, in the extension region of the 2 nd expansion portion on the abdomen side, the cover sheet may not be bonded to the absorber.

In the absorbent article according to the aspect described above, the distance between the 2 nd stretchable portion and the plurality of stretchable members constituting the 2 nd to 4 th regions from the longitudinal end side may be 5mm or more when the 1 st stretchable portion is divided into four in the longitudinal direction at the widthwise outer end portions of the plurality of stretchable portions arranged on the widthwise inner side of the adhesive portion.

In the absorbent article according to the aspect described above, the 1 st stretchable portion may be configured to apply a force to the abdomen and back of the wearer in the width direction.

In the absorbent article according to the aspect described above, a part of the plurality of stretchable members constituting the 1 st stretchable portion may overlap with the longitudinal end portion of the absorbent body, and a part of the plurality of stretchable members overlapping with the longitudinal end portion of the absorbent body may extend beyond the longitudinal end portion of the absorbent body to the other end in the width direction of the cover sheet.

According to the present utility model, an absorbent article that is less likely to shift during wear can be provided.

Drawings

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

fig. 1 is an external perspective view of a diaper according to an embodiment.

Fig. 2 is an exploded perspective view of a diaper according to the embodiment.

Fig. 3A and 3B are diagrams schematically showing a state in which the diaper according to embodiment 1 is developed and extended.

Fig. 4 is a view schematically showing a plan view of a diaper in an unfolded and elongated state.

Fig. 5 is a view showing a configuration of one widthwise end at the lengthwise end of the diaper in an unfolded and elongated state.

Fig. 6 is a diagram conceptually showing a relationship between waist gathers and leg gathers.

Fig. 7 is a table showing the results of the experiment.

Fig. 8 is a plan view schematically showing a diaper in an unfolded and stretched state according to embodiment 2.

Fig. 9 is a plan view showing adhesion between an outer body and an inner body of the diaper according to embodiment 2.

Detailed Description

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

< embodiment >

Fig. 1 is a perspective view of a disposable diaper for adult use (hereinafter, simply referred to as "diaper") according to the embodiment. In a diaper, a direction connecting a front body disposed to face an abdomen of a wearer and a rear body disposed to face a back is referred to as a longitudinal direction. The crotch portion disposed in the crotch (disposed opposite the crotch) of the wearer is disposed between the front body (one side in the longitudinal direction) and the rear body (the other side in the longitudinal direction) (the center in the longitudinal direction). In addition, when the diaper is worn on a wearer, the side facing the skin of the wearer is referred to as the skin surface side, and the opposite side to the skin surface side is referred to as the non-skin surface side. The direction connecting the skin surface side and the non-skin surface side is referred to as the thickness direction, and the direction perpendicular to both the longitudinal direction and the thickness direction is referred to as the width direction. In addition, the thickness direction is defined as a planar view. The diaper 1 has a length along the longitudinal direction and a width along the width direction orthogonal to the longitudinal direction, and is worn on the crotch of a wearer. The term "direction" used in the present application means a direction which coincides with the front, rear, left, and right of the wearer in a state where the diaper 1 is worn on the wearer. For example, in the present application, the term "right-left direction" means a direction which coincides with the right-left direction of the wearer when the diaper 1 is worn on the wearer.

In the present embodiment, as an example of the absorbent article, a pants-type disposable diaper having a tubular structure with an opening into which the abdominal region of the wearer enters and a pair of left and right openings through which the left and right lower limbs of the wearer pass is exemplified, but the "absorbent article" in the present application is not limited to pants-type disposable diapers for adults. The term "absorbent article" as used herein includes pants-type disposable diapers for children. Further, there are various absorbent articles such as a belt-type disposable diaper which is configured by attaching a belt fixed to the vicinity of one end portion of a sheet-like member covering the crotch (pudendum) of a wearer from the front to the back to the vicinity of the other end portion of the sheet-like member to form a tubular structure, and which can cover the abdomen and the crotch.

The diaper 1 has: a crotch region 1B, which corresponds to a crotch region that covers the pudendum (crotch) of a wearer in a worn state; a front body region 1F, which is a region corresponding to a front body at the waist of the wearer, for covering the abdomen side of the wearer; and a back region 1R, which is a portion corresponding to the back of the waist of the wearer, for covering the back side of the wearer. Here, the front body region 1F is located on the front side of the crotch region 1B, and the rear body region 1R is located on the rear side of the crotch region 1B. Since the diaper 1 in the present embodiment is a pants-type disposable diaper, the left edge of the front body region 1F and the left edge of the rear body region 1R are joined to each other, and the right edge of the front body region 1F and the right edge of the rear body region 1R are joined to each other. Thus, in the diaper 1, the trunk opening 2T is formed by the upper edge of the front body region 1F and the upper edge of the rear body region 1R. In the diaper 1, a left leg opening 2L is formed in a left portion of the crotch region 1B where the above-described joining is not performed, and a right leg opening 2R is formed in a right portion of the crotch region 1B. When the diaper 1 is worn with the left lower limb of the wearer inserted into the left lower limb opening 2L, the right lower limb of the wearer inserted into the right lower limb opening 2R, and the trunk of the wearer entering the trunk opening 2T, the front body region 1F is disposed on the abdomen side of the wearer, the rear body region 1R is disposed on the back side of the wearer, and the left lower limb opening 2L and the right lower limb opening 2R are fixed to the wearer's body in a state surrounding the thigh of the wearer. Since the diaper 1 is fixed to the body of the wearer in this manner, the wearer can freely move while wearing the diaper 1.

In the diaper 1, an absorber capable of absorbing and retaining liquid is mainly disposed around the crotch region 1B. In the diaper 1, in order to suppress formation of a gap which is a flow-out path of liquid between the diaper 1 and the skin of the wearer, a three-dimensional gather 3BL is provided in the left leg opening 2L surrounding the thigh of the left leg of the wearer, a three-dimensional gather 3BR is provided in the right leg opening 2R surrounding the thigh of the right leg of the wearer, and a waist gather 3R is provided in a portion surrounding the abdomen of the wearer. Further, leg gathers 3LL, 3LR are provided at positions surrounding thighs of the wearer. The three-dimensional gathers 3BL, 3BR and the waist gather 3R are brought into close contact with the skin of the wearer by the elastic force of the linear rubber. The leg gathers 3LL and 3LR prevent gaps from being formed between the thighs of the wearer and the diaper 1. Thus, the discharged liquid discharged from the pudendum of the wearer hardly leaks out of the diaper 1 and is absorbed by the absorber of the diaper 1.

The diaper 1 can be used in combination with an inner pad not shown. The inner pad is a substantially rectangular absorbent article provided with an absorber, and absorbs discharged liquid. When the diaper 1 and the inner pad are used in combination, the inner pad is placed on the skin surface side of the diaper 1 so as to abut on the discharge hole of the wearer. The discharged liquid is first absorbed by the inner pad, and only the discharged liquid which has not been absorbed by the inner pad reaches the absorber of the diaper 1 and is further absorbed. Thus, even when the amount of discharged liquid is large, leakage of discharged liquid from the diaper 1 can be prevented. In addition, when the amount of discharged liquid is small and the whole absorption by the inner pad is possible, only the inner pad needs to be replaced even if discharged liquid is generated, so that the intervention (nursing) cost can be reduced. In addition, the diaper 1 can be used for a long time.

Fig. 2 is an exploded perspective view of the diaper 1 according to the embodiment. The diaper 1 has a cover sheet 4 and an inner cover sheet 5. The cover sheet 4 and the inner cover sheet 5 are substantially hourglass-shaped (gourd-shaped) sheets that are bonded together to form the outer surface of the diaper 1. In a state of being worn on a wearer, the cover sheet 4 is laminated on the non-skin surface side of the wearer, and the inner cover sheet 5 is laminated on the wearer side. Linear rubber for forming the waist gathers 3R and the leg gathers 3LL, 3LR is provided between the cover sheet 4 and the inner cover sheet 5. Further, a band-shaped expansion member such as rubber can be appropriately selected instead of the linear rubber.

For example, nonwoven fabrics made of a liquid impermeable thermoplastic resin may be used as the material of the cover sheet 4 and the inner cover sheet 5 in order to suppress leakage of excrement. Here, examples of the liquid-impermeable thermoplastic resin include Polyethylene (PE) and polypropylene (PP). Hereinafter, the structure obtained by combining the back sheet 6, the top sheet 9, and the side sheets 10L, 10R of the absorber 8 and the pair of absorbers 8 is sometimes referred to as an inner body, and the cover sheet 4 and the inner cover sheet 5, in which the linear rubber is disposed, are sometimes combined to be referred to as an outer body as a concept corresponding to the inner body. In addition, the composite sheet obtained by bonding the cover sheet 4 and the inner cover sheet 5 together may be referred to simply as a cover sheet in the form of an inner cover sheet 5.

The diaper 1 has a back sheet 6, an absorber 8, and a top sheet 9 laminated in this order on the wearer-side surfaces of the cover sheet 4 and the inner cover sheet 5. The back sheet 6 is a substantially rectangular sheet having a length extending from the front body to the rear body of the wearer through the crotch in the longitudinal direction and a predetermined width in the width direction perpendicular to the longitudinal direction. The absorber 8 and the top sheet 9 are sheet-like members having a substantially rectangular appearance like the back sheet 6, and are sequentially laminated on the back sheet 6 in a state where the longitudinal direction matches the longitudinal direction of the back sheet 6. The backsheet 6 is a sheet made of a liquid impermeable thermoplastic resin for suppressing leakage of excrement. The top sheet 9 is a sheet-like member disposed on the skin surface side of the wearer so as to cover the water absorbing surface of the absorber 8. The top sheet 9 has liquid permeability in part or all of it. Thus, in a state in which the diaper 1 is worn, liquid excreted from the wearer is immersed in the absorbent body 8 through the topsheet 9 which may come into contact with the wearer's skin, where it is absorbed. Examples of the liquid-permeable sheet include woven fabrics, nonwoven fabrics, and porous films. In addition, the top sheet 9 may have hydrophilicity.

The absorbent body 8 has an absorbent core 8c composed of 1 or more pads and a core wrap sheet 7 wrapping the absorbent core 8 c. The absorbent core 8c has a structure in which a particulate absorbent resin (high-molecular-weight water-absorbent material) such as SAP (high-absorbent polymer: super Absorbent Polymer) which is a hydrophilic polymer having a crosslinked structure capable of absorbing and retaining water is retained in the interstices of a short fiber of cellulose fibers such as pulp fibers, rayon fibers, or cotton fibers, or a short fiber obtained by hydrophilizing a synthetic fiber such as polyethylene, polypropylene, or polyethylene terephthalate. When the absorbent core 8c absorbs liquid excreted from the wearer, the absorbent resin in the gaps held in the short fibers is swelled, and the liquid is held in the short fibers. In the present embodiment, the absorbent core 8c is of the following substantially hourglass type: the device has a narrowed portion in which a longitudinal central portion is narrowed in a width direction, wide portions having a constant length are provided at both longitudinal end portions, and a widened portion which gradually widens toward an outer side in the longitudinal direction is provided between the narrowed portion and the wide portions. The absorbent core 8c can take an appropriate shape according to the purpose. Examples of the shape of the absorbent core include a rectangular shape, an elliptical shape, and various other shapes.

Further, the absorbent core 8c can also be formed of a plurality of absorbent pads. In this case, absorbent pads having different shapes may be stacked to form the absorbent core 8c. As an example, the absorbent core 8c may be configured by using 2 pads, that is, an upper layer absorbent pad on the skin surface side and a lower layer absorbent pad on the non-skin surface side. The shape of the upper layer absorbent pad may be substantially hourglass, and the lower layer absorbent pad may be rectangular, having a narrower width than the wide portion of the upper layer absorbent pad, and the width of the lower layer absorbent pad may be substantially the same as the width of the narrower portion of the upper layer absorbent pad.

The core wrap sheet 7 is a thin liquid-permeable sheet, and by wrapping the absorbent core 8c with the core wrap sheet 7, the SAP of the absorbent core 8c is less likely to be mixed into other structures. In addition, the absorbent core 8c is suppressed from running out. The core wrap sheet can be formed of pulp fibers, and as an example, a tissue can be used. The core wrap sheet 7 may be 1 sheet, or may be composed of 2 sheets, that is, an upper sheet disposed on the skin side of the wearer and a lower sheet disposed on the non-skin side of the wearer and wound around the side surface and the skin side of the absorbent core. When the core wrap sheet 7 is formed of 2 sheets, the width direction end portion of the upper side sheet may be covered with another sheet (for example, side sheets 10L, 10R, back sheet 6, and top sheet 9 described later). The absorbent body 8 is enclosed by the back sheet 6 and the top sheet 9, and the sample can be prevented from being removed by these sheets, so that the core wrap sheet 7 may not be provided.

The back sheet 6, the absorber 8, and the top sheet 9 all extend from the front body region 1F to the back body region 1R. Thus, when the back sheet 6, the absorber 8, and the top sheet 9 are laminated to cover the wearer's pudendum (crotch), the respective longitudinal ends of the back sheet 6, the absorber 8, and the top sheet 9 are positioned on the wearer's abdomen side and back side. That is, the pudendum of the wearer is covered with the absorber 8 from the abdomen side to the back side of the wearer. Therefore, regardless of the posture of the wearer in which the wearer is facing the abdomen down and the posture of the wearer in which the wearer is facing the back down, the discharged liquid is discharged outside the body, and the discharged liquid is brought into contact with the absorber 8 via the top sheet 9.

The diaper 1 has elongated belt-shaped side panels 10L and 10R for forming the above-described three-dimensional gathers 3BL and 3BR. The side sheets 10L and 10R are provided on the long side of the top sheet 9. The linear rubbers 10L1 and 10R1 are bonded to the side sheets 10L and 10R along the longitudinal direction. Thus, when the edge 4F4 of the cover sheet 4 which is the left edge of the front body region 1F and the edge 4R4 which is the left edge of the rear body region 1R are joined to each other, and the edge 4F5 of the cover sheet 4 which is the right edge of the front body region 1F and the edge 4R5 which is the right edge of the rear body region 1R are joined to each other, the side sheets 10L and 10R are pulled up in the longitudinal direction by the contraction force of the linear rubbers 10L1 and 10R1, and stand up from the top sheet 9 along the folding lines 10L2 and 10R2, as shown in fig. 1, the diaper 1 is completed. As a result, three-dimensional gathers 3BL, 3BR are formed which prevent liquid from flowing out of the left and right lower limb openings 2L, 2R. The bonding method of the edge 4F4 and the edge 4R4, and the edge 4F5 and the edge 4R5 is not particularly limited, but can be performed by, for example, heat sealing, high-frequency sealing, ultrasonic sealing, or the like.

The diaper 1 further includes an end sheet 11F that is laminated on the wearer side surface in the front region 1F of the cover sheet 4, and an end sheet 11R that is laminated on the wearer side surface in the back region 1R of the cover sheet 4, with the back sheet 6, the absorber 8, the top sheet 9, and the side sheets 10L, 10R interposed therebetween. The end sheets 11F and 11R are long sheets that overlap the cover sheet 4 and the inner cover sheet 5 at one end side in the longitudinal direction of the top sheet 9. The end pieces 11F, 11R are non-water-impermeable nonwoven fabrics, and reinforce the cover piece 4 and the inner cover piece 5 mainly at the waist abutment portion of the diaper 1. The end pieces 11F and 11R are coated with an adhesive, and bonded to the inner cover piece 5 by the adhesive. The end sheets 11F, 11R are disposed closer to the skin surface than the laminate formed by the back sheet 6, the absorber 8, the top sheet 9, and the side sheets 10L, 10R, and prevent the end portions of the laminate from directly contacting the skin surface to give the wearer a feeling of discomfort.

Fig. 3A and 3B are diagrams schematically showing a state in which the diaper 1 according to the embodiment is developed and extended. Fig. 3A schematically shows an internal configuration of the diaper 1 in a developed and elongated state when viewed from the left side. Fig. 3B schematically shows a plan view of the diaper 1 in an unfolded and extended state. In fig. 3B, the side panels 10L and 10R and the end panels 11F and 11R are not shown. The cover sheet 4 is folded back at one end side at the folding lines 4FF and 4RF shown in fig. 2. The above-described waist gather 3R is formed by bonding linear rubbers (linear rubbers) 4F1, 4F2 to the front region of the cover sheet 4 and bonding linear rubbers (linear rubbers) 4R1, 4R2 to the rear region of the cover sheet 4. The linear rubbers 4F1 and 4F2 are provided in the order of the linear rubbers 4F1 and 4F2 from the side of the folding line 4FF along the folding line 4FF that forms the upper edge of the precursor region 1F when folded back. The linear rubbers 4R1 and 4R2 are also provided in the order of the linear rubbers 4R1 and 4R2 from the side of the folded-back line 4RF along the folded-back line 4RF that forms the upper edge of the rear body region 1R when folded back, as with the linear rubbers 4F1 and 4F 2.

Thus, the linear rubbers 4F1, 4F2 are provided on the cover sheet 4 in such an orientation that the longitudinal direction, which is the expansion and contraction direction, is the lateral direction of the diaper 1. The linear rubbers 4R1, 4R2 are provided on the cover sheet 4 in such a manner that the longitudinal direction, which is the extension and contraction direction, is the lateral direction of the diaper 1. Thus, when the edge 4F4 and the edge 4R4 are joined to each other and the edge 4F5 and the edge 4R5 are joined to each other, the linear rubbers 4F1, 4F2 and the linear rubbers 4R1, 4R2 form a substantially annular stretchable member surrounding along the trunk opening 2T, and function to shrink the trunk opening 2T in the trunk-surrounding direction. That is, the linear rubbers 4F1 and 4F2 and the linear rubbers 4R1 and 4R2 exert a contraction force to bring the diaper 1 into close contact with the wearer, thereby preventing a gap from being formed between the diaper 1 and the abdominal circumference of the wearer. The linear rubber 4F2 and the linear rubber 4R2 overlap the absorber 8 at a portion on the crotch region 1B side thereof.

The linear rubbers 4F1 and 4R1 are provided so as to extend in the left-right direction along portions that are upper edges of the front body region 1F and the rear body region 1R shown in fig. 1. The linear rubbers 4F2 and 4R2 are disposed in parallel with a predetermined interval therebetween. The linear rubbers 4F1 and 4R1 fasten the abdomen of the wearer relatively strongly above the linear rubbers 4F2 and 4R2 in a state where the diaper 1 is worn. The linear rubbers 4F1 and 4R1 serve to prevent the diaper 1 from being brought into close contact with the wearer, thereby preventing the wearing position from being shifted, and preventing discharged liquid from leaking from the abdomen and back. The linear rubbers 4F2 and 4R2 alleviate the sense of compression to the wearer caused by the contraction force of the linear rubbers 4F1 and 4R 1. In addition, in the case of using the inner pad, the displacement of the inner pad is suppressed. When the extending regions of the linear rubbers 4F1, 4F2 (more specifically, the distance between the linear rubber located at the most longitudinal end side among the linear rubbers constituting the linear rubber 4F1 and the linear rubber located at the most longitudinal inner side among the linear rubbers constituting the linear rubber 4F 2) are divided into four in the longitudinal direction, the extending range of the linear rubber 4F1 occupies the range of the outer quarter in the longitudinal direction, and the extending range of the linear rubber 4F2 occupies the range of the inner three quarters in the longitudinal direction. The same applies to the linear rubbers 4R1, 4R2 in the rear region, and the relationship of the extension ranges in the longitudinal direction.

Further, the linear rubber 4F3 and the linear rubber 4R3 are bonded to the cover sheet 4. The linear rubbers 4F3 and 4R3 are stretchable members provided in the cover sheet 4 in the crotch region 1B side of the linear rubbers 4F2 and 4R 2. The linear rubbers 4F3 and 4R3 are arranged to curve in the crotch region 1B, unlike the other linear rubbers, and overlap the absorber 8 in the thickness direction at the narrowed portion of the hourglass-shaped absorbent core 8 c. With this configuration, the arrangement regions of the linear rubbers 4F3, 4R3 can be made to function as the leg gathers 3LL, 3 LR. Further, the linear rubber 4F3 traverses the extension region of the absorber 8 in the width direction. On the other hand, the linear rubber 4R3 does not traverse the extension region of the absorber 8, but overlaps a part of the outer side in the width direction of the absorbent core 8 c. Further, a form in which the linear rubber 4R3 is overlapped with only the core wrap sheet 7 extending outside the absorbent core 8c in the width direction without overlapping with the absorbent core 8c may be considered.

The cover sheet 4 is folded back at the folding lines 4FF and 4RF to extend to the arrangement regions of the linear rubbers 4F1 and 4R1, and the arrangement regions of the linear rubbers 4F1 and 4R1 are reinforced by the folded back portions. The end pieces 11F, 11R are provided in the arrangement regions of the linear rubbers 4F2, 4R2 where the cover piece 4 folded back at the folding lines 4FF, 4RF does not extend, and reinforce the arrangement regions of the linear rubbers 4F2, 4R 2.

In the present application, the state in which the sheets overlap is not limited to the state in which the sheets overlap each other so as to be in contact with each other over the entire surface, and is a concept including the state in which a part of the sheets overlap each other. For example, a portion of the end piece 11F on one end side in the longitudinal direction of the back piece 6 overlaps with a portion of the cover piece 4 in a contact state. In the diaper 1, the cover sheet 4, the end sheets 11F, 11R, the inner cover sheet 5, and the side sheets 10L, 10R are stacked in addition to the back sheet 6 and the top sheet 9 sandwiching the absorber 8, and therefore, it can be said that a laminate in which these multiple sheets are stacked is provided.

When the diaper 1 is used for an adult, the wearer's physique is significantly different from that of an infant. Thus, the diaper 1 can be provided in a plurality of sizes that match the wearer's physique. The diapers 1 having different sizes are mainly realized by changing the sizes of the front region 1F and the rear region 1R of the outer body. The structure of the crotch portion of the person and the positional relationship of the excretory opening do not greatly change depending on the wearer's physique. In addition, it is known that the excretion of the elderly, which is the main consumer of adult diapers, is not correlated with the physical constitution. Thus, by adjusting the structure of the outer body as described below, it is possible to provide a diaper 1 having a plurality of substantially identical dimensions of the absorber 8.

For example, a pack of diapers for an adult having a long waist (waistline) (including a 1 st pack of 1 st absorbent articles having a 1 st size) and a pack of diapers for an adult having a short waist (including a 2 nd pack of 2 nd absorbent articles having a 2 nd size) are labeled with the same brand mark and sold simultaneously as a plurality of absorbent article packs. In addition, the variety of the bag can be further increased according to the physical constitution of the wearer, and the bag having a size matching with 3 or more physical constitution can be sold at the same time. Even in this case, since the substantially identical absorber 8 can be used, the diaper 1 can be provided which can meet the physical constitution of the wearer while suppressing the increase in cost, and can improve the satisfaction of the wearer and the assisting person (helpers).

Such a plurality of absorbent article packages can be realized by changing the longitudinal length of the outer package and changing the width of the outer package in the front body region 1F and the rear body region 1R. Further, if the length of the linear rubber is also changed in accordance with the width of the outer covering body, the contraction force per unit area can be made common or fall within a predetermined range (for example, within ±10% of the difference) among the outer covering bodies having a plurality of waist sizes, and a plurality of sizes of diapers having a common wearing feel can be provided.

When changing the longitudinal length of the outer package, the intervals between the linear rubbers 4F2 and 4R2 may be set to be uniform, and the number may be changed according to the longitudinal length of the outer package. By unifying the intervals between the linear rubbers 4F2 and 4R2, the contraction force per unit area of the linear rubbers overlapped with the absorber 8 or in the vicinity of the absorber 8 is common or falls within a predetermined range (for example, the difference is within ±10%) in diapers of a plurality of sizes. Thus, a diaper having a plurality of sizes that are common to wearing sensations can be provided. In addition, the overlapping areas SRF, SRR, which are portions where the linear rubbers 4F2, 4R2 overlap the absorber 8, are portions surrounded by broken lines in fig. 3B, and the areas thereof are made common among a plurality of dimensions or the difference thereof falls within a predetermined range (for example, ±10% or less), whereby the contraction force applied to the absorber 8 can be made approximately common. In the vicinity of the widthwise ends at the lengthwise ends, the distance between the linear rubbers 4F3, 4R3 may be set to be equal to or within a predetermined range (for example, within ±10%) of the distance between the linear rubbers 4F2, 4R 2. In this way, in the diaper 1 having a plurality of outer bodies of the same size, the same size absorber 8 can be used without changing the wearing feeling.

In addition, in the outer body of a plurality of sizes, the distance between the end portions of the linear rubbers 4F2, 4R2 on the crotch side in the longitudinal direction and the right lower limb opening 2R, the left lower limb opening 2L, which are leg holes through which the legs of the wearer pass, may be shared. In addition, the distance between the widthwise end of the outer body and the widthwise end of the absorber 8 can be shared at the narrowest position in the crotch region 1B, regardless of the size of the outer body. It is known that the configuration of the thigh and crotch portions of a person is not affected by the lattice. Accordingly, the distance between the linear rubbers 4F2 and 4R2 constituting the waist gather 3R and the leg opening is approximately shared by the diapers 1 having a plurality of sizes, whereby the diapers 1 having a common sense of wearing in a plurality of sizes can be provided.

In addition, it is not necessary to satisfy all of the absorbent article packages provided at the same time with the above-described requirements, and it is sufficient that a plurality of the absorbent article packages provided at the same time satisfy the above-described requirements. For example, when the absorbent article package to be simultaneously provided is of the size S, M, L, XL, the overlapping areas SRF and SRR may be smaller in terms of the S size than the other sizes, and the distances between the end portions of the linear rubbers 4F2 and 4R2 on the crotch side in the longitudinal direction and the right and left lower limb openings 2R and 2L may be reduced, and the structures may be made common to each other or the difference may be within a predetermined range (specifically, ±10%) in terms of the size M, L, XL.

Fig. 4 is a view schematically showing a plan view of a diaper in an unfolded and elongated state. Fig. 4 shows the diaper 1 from the skin surface side, with the inner cover sheet 5, the back sheet 6, the top sheet 9, and the like omitted. The absorber 8 has an absorbent core 8c and a core wrap sheet 7 covering the absorbent core 8 c. The absorber 8 is disposed so that the longitudinal direction thereof extends along the front-rear direction of the wearer. The absorbent core 8c has, in the longitudinal direction, an abdomen 81, a 1 st widened portion 82 narrower than the abdomen 81 in the width direction orthogonal to the longitudinal direction, a crotch portion 83 narrower than the 1 st widened portion 82 in the width direction, a 2 nd widened portion 84 wider than the crotch portion 83 in the width direction, and a back portion 85 wider than the 2 nd widened portion 84 in the width direction in this order. The core wrap sheet 7 is wider than the absorbent core 8c in the width direction. In fig. 4, the longitudinal direction is denoted by D1, and the width direction is denoted by D2. The cover sheet 4 is disposed on the non-skin surface side of the absorber 8.

The abdomen 81 and the back 85 are rectangular, for example, and in fig. 4, the abdomen 81 and the back 85 are the widest in the width direction at each portion of the absorbent core 8 c. The abdomen portion 81 may be wider than the back portion 85 in the width direction, or the back portion 85 may be wider than the abdomen portion 81 in the width direction. The web 81 has an end portion located at the opposite side of the boundary of the web 81 and the 1 st widened portion 82 in the length direction. The length of the abdomen 81 in the longitudinal direction is approximately 50mm. For example, the region of the absorbent core 8c from the end of the abdomen 81 to the central side of the absorbent core 8c up to approximately 50mm may be the abdomen 81. The back 85 has an end portion located at an opposite side of the boundary of the back 85 and the 2 nd widened portion 84 in the longitudinal direction. The length of the back 85 in the longitudinal direction is approximately 50mm. For example, the back portion 85 may be a range of the absorbent core 8c from the end portion of the back portion 85 toward the central portion of the absorbent core 8c to approximately 50mm.

The crotch portion 83 is rectangular, for example, and is narrowest in the width direction at each portion of the absorbent core 8 c. The length of the crotch portion 83 in the longitudinal direction is approximately 50mm. For example, the crotch portion 83 may be a range from the narrowest part in the width direction of the absorbent core 8c toward the abdomen 81 side to approximately 25mm and a range from the narrowest part in the width direction of the absorbent core 8c toward the back 85 side to approximately 25 mm. The 1 st widened portion 82 widens from the crotch portion 83 toward the abdomen portion 81. The 2 nd widened portion 84 widens from the crotch portion 83 toward the back portion 85. The 1 st and 2 nd widened portions 82 and 84 may be tapered with a width gradually increasing in the width direction, or may be tapered with a width gradually increasing in the width direction.

The width of the crotch portion 83 can be designed based on the width of the pudendum of the wearer because the pudendum of the wearer is substantially the same width regardless of the physical wearer. When the diaper 1 is worn, the abdomen 81 and the back 85 are not bent so much but are in a substantially flat state, and therefore are not easily deformed. On the other hand, the portion between the abdomen and the pudendum of the wearer and the portion between the back and the pudendum of the wearer are greatly different depending on the physique, sex, and the like of the wearer, and therefore, the 1 st and 2 nd widened portions 82 and 84 are easily deformed at the time of wearing the diaper 1, and thus are easily deformed.

The plurality of linear rubbers (linear expansion members, which are an example of the "expansion members" of the present application) including the plurality of linear rubbers 4F1, the plurality of linear rubbers 4F2, and the plurality of linear rubbers 4F3 are arranged in an elongated state. The number of the linear rubbers 4F1, 4F2, 4F3 can be arbitrarily set, and is not limited to the number shown in the drawings. The plurality of linear rubbers 4F3 have both end portions, and at least one linear rubber 4F3 of the plurality of linear rubbers 4F3 extends in the width direction and overlaps the core wrap sheet 7 in the thickness direction of the absorber 8 on the outer side in the width direction of the 1 st widened portion 82. For example, all or half of the plurality of linear rubbers 4F3 may extend in the width direction, and overlap the core wrap sheet 7 in the thickness direction of the absorber 8 on the outer side of the 1 st widened portion 82 in the width direction. The portion of the plurality of linear rubbers 4F3 overlapping the core wrap sheet 7 is bonded to at least one of the cover sheet 4, the inner cover sheet 5, and the core wrap sheet 7. In the following, the case where the linear rubber 4F3 is overlapped with the core wrap sheet 7 will be described, which means that the linear rubber 4F3 is overlapped with the core wrap sheet 7 in the thickness direction of the absorber 8.

The plurality of linear rubbers 4F2, 4R2 extend in the width direction. The linear rubber 4F2 biases the abdomen of the wearer in the width direction. The linear rubber 4R2 biases the back of the wearer in the width direction. The linear rubbers 4F2, 4R2 are bonded to each other together with the cover sheet 4 at both ends in the width direction, and form a tubular structure along the waist of the wearer.

Some of the plurality of stretchable members constituting the linear rubbers 4F2, 4R2 are disposed so as to overlap with the longitudinal end portions of the abdomen 81 and the back 85 of the absorbent core 8c in the thickness direction of the absorbent body 8. The linear rubbers 4F2, 4R2 overlapped with the longitudinal end portions of the absorbent core 8c extend beyond the absorber 8 to the other end in the width direction of the cover sheet 4.

The linear rubbers 4F2 and 4R2 overlap the ends of the abdomen 81 and the back 85, and the ends of the abdomen 81 and the back 85 are biased outward in the width direction. The 1 st widened portion 82 is pulled outward in the width direction of the 1 st widened portion 82 by the linear rubber 4F3, and the region from the web portion 81 to the 1 st widened portion 82 is biased outward in the width direction. Similarly, the 2 nd widened portion 84 is pulled outward in the width direction of the 2 nd widened portion 84 by the linear rubber 4R3, and the region from the back portion 85 to the 2 nd widened portion 84 is biased outward in the width direction. By elongating these linear rubbers in the width direction, deformation of the absorbent core 8c is suppressed, and also, the absorbent core 8c can be prevented from being deformed. Further, the linear rubbers 4F2 and 4R2 disposed so as to overlap the end portions of the abdomen portion 81 and the back portion 85 in the thickness direction of the absorber 8 shrink the absorbent core 8c, and there is a possibility that the force that biases the absorbent core 8c outward in the width direction as a whole is weakened. Therefore, the linear rubber overlapped with the absorber 8 is preferably a part of the crotch side of the linear rubbers 4F2, 4R 2. Alternatively, a part of the linear rubbers 4F2 and 4F3 may be cut at the widthwise end of the absorber 8 to limit the number of linear rubbers to be overlapped with the absorber 8.

The plurality of linear rubbers 4F3 are arranged in an elongated state, and one of both end portions of at least one linear rubber 4F3 extends in the width direction and overlaps the core wrap sheet 7 on the outer side of the 1 st widened portion 82 in the width direction. By pulling the 1 st widened portion 82 outward in the width direction by the at least one linear rubber 4F3, the 1 st widened portion 82 can be prevented from contracting more than necessary (excessively) in the width direction, and the absorbent core 8c can be prevented from running out.

The plurality of linear rubbers (an example of the "stretchable member" in the present application) including the plurality of linear rubbers 4R1, the plurality of linear rubbers 4R2, and the plurality of linear rubbers 4R3 are arranged in an elongated state. The number of the linear rubbers 4R1, 4R2, and 4R3 can be arbitrarily set, and is not limited to the number shown in the drawings. The plurality of linear rubbers 4R3 (an example of the "2 nd stretchable member" in the present application) have both end portions, and one of the both end portions of at least one linear rubber 4R3 of the plurality of linear rubbers 4R3 extends in the width direction and overlaps the core wrap sheet 7 in the thickness direction of the absorber 8 on the outer side in the width direction of the 2 nd widened portion 84. For example, one of the two end portions of all or half or more of the plurality of linear rubbers 4R3 may extend in the width direction, and overlap the core wrap sheet 7 in the thickness direction of the absorber 8 on the outer side in the width direction of the 2 nd widened portion 84. The portions of the plurality of linear rubbers 4R3 overlapping the core wrap sheet 7 are bonded to at least one of the cover sheet 4, the inner cover sheet 5, and the core wrap sheet 7. In the following, the case where the linear rubber 4R3 is overlapped with the core wrap sheet 7 will be described, which means that the linear rubber 4R3 is overlapped with the core wrap sheet 7 in the thickness direction of the absorber 8.

The plurality of linear rubbers 4R3 are arranged in an elongated state, and one of both end portions of at least one linear rubber 4R3 extends in the width direction and overlaps the core wrap sheet 7 on the outer side in the width direction of the 2 nd widened portion 84. By pulling the 2 nd widened portion 84 outward in the width direction by the at least one linear rubber 4R3, the 2 nd widened portion 84 can be prevented from contracting more than necessary in the width direction, and the absorbent core 8c can be prevented from being deformed.

The plurality of linear rubbers 4R3 overlap the widthwise outer side of the absorbent core 8c in the thickness direction, but do not cross the absorbent core 8c. The end portion of the inner side in the width direction of the linear rubber 4R3 overlaps the outer side in the width direction of the absorbent core 8c in the thickness direction, or overlaps only the core wrap sheet 7 wrapping the absorbent core 8c at the outer side in the width direction than the end portion in the width direction of the absorbent core 8c. By preventing the plurality of linear rubbers 4R3 from overlapping the absorbent core 8c and the widthwise central portion of the absorber 8 in the thickness direction, the plurality of linear rubbers 4R3 do not excessively shrink the absorbent core 8c inward in the widthwise direction in the state before wearing. This can prevent the absorbent core 8c from being deformed before wearing. Further, since the widthwise end portions of the plurality of linear rubbers 4R3 overlap the absorber 8, the biasing force of the linear rubbers 4R3 is transmitted to the absorber 8 during wearing of the diaper 1, and the absorbent core 8c can be more reliably expanded in the widthwise direction.

The core wrap sheet 7 is a water permeable sheet made of pulp fibers or the like, and is substantially rectangular in a state of covering the entire absorbent core 8 c. The core wrap sheet 7 may be composed of 1 sheet, or may be divided into a narrow upper core wrap sheet 7f covering the skin side of the absorbent core 8c and a wide lower core wrap sheet 7b covering the non-skin side and the side of the absorbent core 8c and extending to the skin side widthwise end of the absorbent core 8 c. In the case of this configuration, the upper core wrap sheet 7f and the lower core wrap sheet 7b are bonded to each other at the skin-surface-side widthwise ends of the absorbent core 8 c.

The portions of the linear rubbers 4F3, 4R3 overlapping the core-wrap sheet 7 extend in the width direction. Since the respective linear rubbers 4F3, 4R3 are arranged in an elongated state, the portions where the respective linear rubbers 4F3, 4R3 overlap the core wrap sheet 7 shrink in the width direction.

The areas for extending the linear rubbers 4F3, 4R3 are made small outside the core wrap sheet 7 in the width direction of the 1 st widened portion 82, 2 nd widened portion 84. By disposing the portions of the linear rubbers 4F3, 4R3 that do not overlap the core wrap sheet 7 obliquely toward the abdomen 81 and the back 85, the linear rubbers 4F3, 4R3 can be extended toward a wide area. Accordingly, the force with which the respective linear rubbers 4F3, 4R3 pull the absorbent core 8c is larger, and the absorbent core 8c can be more reliably expanded in the width direction.

In addition, the portions of the respective linear rubbers 4F3, 4R3 that do not overlap the core wrap sheet 7 may extend within a range of ±45 degrees with respect to the width direction. By making the expansion and contraction force in the width direction of the respective linear rubbers 4F3, 4R3 larger than the expansion and contraction force in the length direction of the respective linear rubbers 4F3, 4R3, the force with which the respective linear rubbers 4F3, 4R3 pull the absorbent core 8c in the width direction is larger, whereby the absorbent core 8c can be expanded in the width direction more reliably.

The plurality of linear rubbers constituting the linear rubber 4F3 can bias the entire longitudinal direction of the 1 st widened portion 82 of the absorbent core 8c to the outside in the width direction. Specifically, by extending the plurality of linear rubbers constituting the linear rubber 4F3 in the width direction in the vicinity of the 1 st widened portion 82 and overlapping the core wrap sheet 7 over the entire longitudinal direction of the 1 st widened portion 82, the force in the direction of collapsing the absorbent core 8c can be effectively (directly) opposed. By pulling the entire region in the longitudinal direction of the 1 st widened portion 82 to the outside in the width direction by the linear rubber 4F3, the 1 st widened portion 82 can be prevented from contracting more than necessary in the width direction, and the absorbent core 8c can be prevented from running out. The same applies to the relationship between the 2 nd widened portion 84 on the back 85 side and the linear rubber 4R 3.

Preferably, all or half of the plurality of linear rubbers constituting the linear rubber 4F3 may apply a force from the center in the longitudinal direction of the 1 st widened portion 82 of the absorbent core 8c to the outer side in the width direction in the crotch side. The crotch portion 83 of the absorbent core 8c is easily crushed by the contraction pressure from the thighs of the wearer, and the abdomen 81 is hardly crushed. Accordingly, the 1 st widened portion 82 tends to collapse as it is closer to the crotch portion 83. Accordingly, a plurality of linear rubbers constituting the linear rubber 4F3 can be disposed in the region near the crotch portion 83. Specifically, by extending all or half of the plurality of linear rubbers constituting the linear rubber 4F3 in the width direction in the vicinity of the 1 st widened portion 82 and overlapping the core wrap sheet 7 from the center in the longitudinal direction of the 1 st widened portion 82 to the outer side in the width direction on the crotch side, the force in the direction of collapsing the absorbent core 8c can be effectively (directly) opposed. This can suppress deformation of the absorbent core 8c and prevent the absorbent core 8c from being deformed. The same applies to the relationship between the 2 nd widened portion 84 on the back 85 side and the linear rubber 4R 3.

Fig. 5 is a view showing a configuration of one widthwise end at the lengthwise end in the front body region of the diaper in an unfolded and elongated state. Specifically, the front region of the diaper 1 is enlarged at the right end when viewed from the viewer. The diaper 1 according to the present embodiment has a laterally symmetrical structure. Thus, the structure shown in the present figure is applied to both widthwise end portions of the diaper 1.

As described above, the cover sheet 4 and the inner cover sheet 5 have a substantially hourglass-shaped structure with a wide end region, and the edge 4F4 is provided at the width-direction end of the wide portion. The edge 4F4 is joined to the edge 4R4 at the widthwise end of the rear body region by heat welding or the like, forming a tubular structure. The side seal 12 is a bonding portion for bonding the edge 4F4 and the edge 4R4 to each other. That is, the waist portion of the diaper 1 is formed by joining the widthwise end portions of the front and rear body regions of the outer sheet to each other by the side seal 12. The linear rubbers 4F1, 4F2, and 4F3, which are the plurality of expansion and contraction portions disposed in the cover sheet 4 and the inner cover sheet 5, do not extend to the side seal portion 12. With this configuration, the side seal portions can be softened, and a diaper having a good skin feel can be provided.

The linear rubber 4F1 and the linear rubber 4F2 are each composed of a plurality of linear rubbers (a plurality of stretchable members) arranged substantially in parallel at equal intervals, and are bonded without interruption until the vicinity of the side seal portions 12 at the right and left ends of the cover piece 4. The arrangement region of the linear rubbers 4F1, 4F2 has a function as the waist gather 3R for contracting the trunk opening 2T of the diaper 1 in the trunk-surrounding direction. In particular, the arrangement region of the linear rubber 4F2 is sometimes referred to as a gather. The linear rubber 4F1 and the linear rubber 4F2 are examples of the "1 st expansion and contraction portion" in the present disclosure. When the extending regions of the linear rubbers 4F1 and 4F2 are divided into the 1 st region 4FL1, the 2 nd region 4FL2, the 3 rd region 4FL3, and the 4 th region 4FL4 virtually from the longitudinal ends by dividing the extending regions of the linear rubbers 4F1 and 4F2 into four in the longitudinal direction at both widthwise ends of the linear rubbers 4F1 and 4F2 near the side seal portions 12, the extending region of the linear rubber 4F1 functioning as the waist gather 3R falls in the 1 st region 4FL1. In other words, the extension range of the linear rubber 4F1 is the 1 st area from the longitudinal end when the 1 st expansion and contraction portion is divided into four equal parts. On the other hand, the extension range of the linear rubber 4F2 extends to the 2 nd region 4FL2, the 3 rd region 4FL3, and the 4 th region 4FL4. In other words, the extension range of the linear rubber 4F2 having the function as a gather becomes the 2 nd to 4 th regions from the longitudinal end when the 1 st stretch portion is divided into four equal parts.

The linear rubber 4F3 is also composed of a plurality of linear rubbers (a plurality of stretchable members) arranged substantially in parallel at equal intervals, and is arranged adjacent to the 1 st stretchable portion in the vicinity of the edge 4F4 in parallel with the other linear rubbers (4F 1, 4F 2) constituting the 1 st stretchable portion. That is, the linear rubber 4F2 and the linear rubber 4F3 are arranged parallel to and adjacent to each other in a predetermined region in the width direction from the side seal portion 12 as the adhesive portion. However, the linear rubber 4F3 is bent toward the crotch region 1B at a position apart from the edge 4F4, and is disposed along the widened portions of the cover sheet 4 and the inner cover sheet 5. When reaching the widened portion of the absorbent core 8c, the linear rubber 4F3 is bent again and arranged substantially parallel to the width direction, and overlaps the absorbent core 8c and the core wrap sheet 7 covering the absorbent core 8c in the thickness direction on the central side in the width direction. With this configuration, the arrangement region of the linear rubber 4F3 has a function as the leg gathers 3LL that biases the diaper 1 so as to follow the left lower limb opening 2L. Both widthwise ends of the linear rubber 4F3 are parallel to the widthwise direction. The linear rubber 4F3 is an example of the "2 nd expansion and contraction portion" in the present disclosure. In the side seal 12, the 2 nd expansion and contraction portion is adjacent to the crotch side of the 1 st expansion and contraction portion.

The distance between the plurality of linear rubbers constituting the linear rubber 4F1 is approximately 5mm or less, and the linear rubber is dense in the longitudinal direction. Accordingly, the arrangement region of the linear rubber 4F1 strongly biases the diaper 1 at the longitudinal end portion of the diaper 1 so as to be in close contact with the waist of the wearer. The distance L1 between the plurality of linear rubbers constituting the linear rubber 4F2 in the vicinity of the side seal 12 is 5mm or more and 20mm or less, and is wider than the linear rubber 4F1 in the longitudinal direction, and has a function of causing the linear rubber 4F2 to follow the skin surface of the wearer. Further, although a part of the linear rubber 4F2 overlaps with the longitudinal end portion of the absorber 8, the biasing force is weak, and thus the deformation of the absorber 8 is not induced. The distance L2 between the plurality of linear rubbers constituting the linear rubber 4F3 in the vicinity of the side seal 12 is also 5mm or more and 20mm or less, and is the same as L1. Therefore, the leg gathers 3LL do not apply excessive force to the absorber 8 at the widthwise center side end portions of the linear rubber 4F3 along the skin surface of the wearer.

Here, at the width direction end portions of the linear rubbers 4F2 including the range in which the abdominal gathers extend in the longitudinal direction, that is, the vicinity of the side seal portions 12, the portion constituting the 1 st expansion and contraction portion is divided into four equal parts in the longitudinal direction, and 4FL1, 4FL2, 4FL3, 4FL4 are set from the outer side in the longitudinal direction. Then, the interval between the linear rubber 4F2 disposed at the most longitudinal outer side and the linear rubber 4F2 disposed at the most longitudinal inner side among the linear rubbers 4F2 which are the expansion and contraction members constituting the abdominal gathers extending from the 2 nd to 4 th regions, that is, 4FL2, 4FL3, 4FL4 from the longitudinal outer side was calculated. The length calculated by dividing the number of linear rubbers contained in the abdominal gathers, that is, the number of expansion members disposed in the 2 nd to 4 th regions from the outer side in the longitudinal direction, that is, in the 4FL2, 4FL3, 4FL4, when the 1 st expansion portion is four equal in the longitudinal direction, is L1. In other words, L1 is the average interval of the linear rubber 4F2 constituting the abdominal gather in the vicinity of the side seal portion 12.

Further, at the widthwise end portions of the respective linear rubbers in the vicinity of the side seal portions 12, the interval between the linear rubber 4F3 disposed at the outermost longitudinal side and the linear rubber 4F3 disposed at the innermost longitudinal side among the linear rubbers 4F3 forming the leg gather, i.e., the 2 nd expansion and contraction portion, was calculated. The length calculated by dividing the number of linear rubbers included in the leg gathers, that is, the number of stretchable members disposed at the 2 nd stretchable portion, is L2. In other words, L2 is the average interval at the side seal portion of the linear rubber 4F3 constituting the leg gathers.

The distance L3 between the linear rubber 4F2 and the linear rubber 4F3 in the vicinity of the side seal portion 12 may be narrower than the average distance L1, L2 between the stretch members constituting the gather in the 1 st stretch portion and the 2 nd stretch portion in the present disclosure. For example, the ratio of the two is 0.85 or less. For example, when L1 and L2 are 10mm, L3 is 7.5mm. Alternatively, the crotch side in the longitudinal direction of the linear rubber 4F2 may be in contact with the end side in the longitudinal direction of the linear rubber 4F 3. Even when the outer body of the diaper 1 is made to have a plurality of sizes according to the wearer's physique, the L3 can be made to have the same interval or to have the interval within a predetermined range (for example, within ±10%), regardless of the size of the outer body. With this configuration, the effects described later can be obtained regardless of the size of the exterior body.

Further, when the 1 st expansion and contraction portion is divided into four in the longitudinal direction, the interval between the expansion and contraction members arranged in the 4 th region, that is, 4FL4, from the outside in the longitudinal direction is narrower than the interval between the expansion and contraction members arranged in the 2 nd and 3 rd regions, that is, 4FL2, 4FL3, when viewed in the longitudinal direction. The 4FL4 portion corresponds to the bending line of the wearer's leg when worn. Therefore, by narrowing the interval between the stretchable members in this portion, the diaper 1 is likely to follow the movement of the wearer's thigh, and is unlikely to shift.

The front body region 1F and the rear body region 1R have substantially the same structure, but the linear rubber 4R3 does not traverse the absorber 8. The linear rubber 4R3 overlaps only the core wrap sheet 7 at a portion of the outer side of the absorbent core 8c in the width direction where the absorbent core 8c does not extend, or overlaps the absorbent core 8c and the core wrap sheet 7 in the thickness direction at the outer side of the absorbent core 8c in the width direction. Since the linear rubber 4R3 does not cross the absorbent core 8c, the absorbent body 8 is not easily compressed and is not likely to be deformed even before the diaper 1 is worn. When the diaper 1 is worn, the linear rubber 4R3 biases the absorber 8 outward in the width direction. By adjusting the overlapping range of the linear rubber 4R3 and the absorber 8, the urging force can be appropriately adjusted. For example, if the linear rubber 4R3 is extended to the outer side of the absorbent core 8c in the width direction, the absorber 8 is biased relatively strongly when worn. In addition, when the linear rubber 4R3 is disposed so as not to overlap the absorbent core 8c in the thickness direction but to overlap only the core wrap sheet 7, the force transmitted to the absorbent body 8 is reduced. However, since the linear rubber 4R3 is not overlapped with the absorber 8, the absorber 8 is biased outward in the width direction by the linear rubber 4R3 during wearing of the diaper 1. The linear rubber 4R3 can suppress the deformation of the absorber 8 against the pressure applied from the thigh and the hip of the wearer. Other structures of the linear rubber 4R3, such as the positional relationship with the linear rubber 4R2 in the vicinity of the side seal 12, are similar to those of the linear rubber 4F3, and the diaper 1 is not easily shifted in the rear body region 1R as in the front body region 1F.

Fig. 6 is a diagram conceptually showing a relationship between waist gathers and leg gathers. As shown in fig. 5, in the present embodiment, the crotch side (abdominal gather portion) of the waist gather 3R and the longitudinal end sides of the leg gathers 3LL, 3LR are sufficiently short or are brought into contact with each other at the side seal portion 12. As a result, the leg gathers 3LL and 3LR rotate about the side seal portion 12 of the waist gather 3R as the base point BP (more specifically, about the side seal portion 12 disposed in the vicinity of the side seal portion 12, which is disposed at the 4 th region 4FL4 from the outside in the longitudinal direction when the 1 st expansion and contraction portion is halved in the longitudinal direction, and is narrower than the 4FL2 and 4FL3 which are the 2 nd region, more specifically, the 4FL2 and the 3 rd region. Even if the wearer walks or the like and the leg gathers 3LL and 3LR are partially rotated, the force continues to be applied near the base point BP, and therefore the leg gathers 3LL and 3LR do not shift independently.

If the waist gather 3R is largely separated from the leg gathers 3LL, 3LR at the side seal 12, the base point is not at a point at the side seal 12, and the leg gathers 3LL, 3LR rotate independently of the waist gather 3R. As a result, the positions of the waist gather 3R and the leg gathers 3LL, 3LR are moved, respectively, and the wearing position is shifted, so that the function of the diaper 1 may be incorrectly exhibited. Therefore, as shown in fig. 5, it is preferable that the side seal 12 is configured such that the leg gathers 3LL and 3LR are brought into contact with the waist gather 3R, or such that the gaps between the linear rubbers of both the leg gathers 3LL and 3LR are sufficiently close to each other on the longitudinal end side of the leg gathers 3LL and 3LR and the crotch side of the waist gather 3R, and a base point BP is formed in the vicinity of the waist gather 3R.

Fig. 7 is a table showing the results of the experiment. Experiments were performed to confirm the above description. A plurality of diapers 1 each having a value of L3 changed while having L1 and L2 of 10mm at the side seal 12 were prepared. The ratio of the intervals is the ratio of the lengths of L1, L2 and L3 (in the case where L3 is 0, this is described as close contact). The experimenter dresses the diaper 1 and walks for 10 minutes in the room, and records whether the positional deviation occurred. If no positional deviation occurs in the test, good is described, if a positional deviation occurs but there is no influence on the function of the diaper 1 during the test time, delta is described, and if a positional deviation occurs to such an extent that the diaper cannot exert its function during the test, the test is ended at that time, and x is described. As a result, it was found that: in the side seal 12, the closer the crotch side of the waist gather 3R, that is, the distance between the abdomen gather and the leg gathers 3LL and 3LR is, the less likely the position shift is generated.

< embodiment 2 >

Fig. 8 is a plan view schematically showing a diaper in an unfolded and stretched state according to embodiment 2. In this embodiment, the same reference numerals are given to constituent elements having substantially the same functions as those of embodiment 1, and overlapping description thereof is omitted. In embodiment 2, the linear rubbers 4F3 and 4R3 (constituting the 2 nd expansion and contraction portion of the present disclosure) are bonded to the cover sheet 4 and the inner cover sheet 5 in an elongated state. The linear rubber 4F3 is provided in the crotch region 1B on the front side so as to traverse the absorber 8 in the left-right direction. Thus, the linear rubber 4F3 overlaps the absorber 8 in the thickness direction of the diaper 1, and becomes an overlapping portion. The widthwise central portion of the overlapping portion corresponds to the urethral orifice of the wearer when the diaper 1 is worn.

On the other hand, the linear rubber 4R3 is provided along the edges of the right and left lower limb openings 2R and 2L on the rear body region 1R side. The linear rubber 4R3 extends along the left and right lower limb openings 2R, 2L on the back side of the wearer, and further toward the outer side in the width direction of the diaper 1 than the absorber 8. The linear rubber 4R3 is bonded to the cover sheet 4 and the inner cover sheet 5 in an elongated state. In the crotch region 1B on the rear body side, the tip end portion of the linear rubber 4R3 faces the width direction. The linear rubber 4R3 is cut at the widthwise central portion overlapping the absorber 8 in the thickness direction, and the left linear rubber 4R3 and the right linear rubber 4R3 are not connected. Thus, the widthwise central portion of the absorber 8 does not overlap the linear rubber 4R3 in the thickness direction.

The inner cover sheet 5 and the absorber 8 are suitably bonded by an adhesive such as a hot melt adhesive through the back sheet 6 from the front region 1F to the back region 1R. However, as shown in fig. 8, in the region where the linear rubber 4F3 crosses the absorber 8 in the front body region 1F, the inner cover sheet 5 and the absorber 8 are non-bonded (set as a non-bonded region 15). In fact, in the non-bonded region 15, the inner cover sheet 5 and the back sheet 6 are non-bonded. In the present embodiment, the non-adhesive region 15 is provided over the entire region of the overlapping region of the crotch region 1B where the linear rubber 4F3 overlaps the absorber 8.

In the diaper 1, the linear rubber 4F3 overlaps the absorber 8 in the thickness direction. In the state before wearing, the linear rubber 4F3 biases the absorber 8 inward in the width direction. The absorber 8 may bend inward in the width direction due to the biasing force of the linear rubber 4F3, and cause a strain. By making the region where the linear rubber 4F3 crosses the absorber 8 be the non-adhesive region 15, the biasing force of the linear rubber 4F3 transmitted to the absorber 8 can be reduced in the state before wearing. By providing the non-adhesive region 15 in this way, the absorbent body 8 can be prevented from being deformed before wearing. On the other hand, in the wearing state, the linear rubber 4F3 can apply force to the absorber 8 so as to spread appropriately in the width direction while applying force to the skin surface side of the wearer with certainty, and therefore, the deformation of the absorber 8 during wearing can also be suppressed.

Fig. 9 is a plan view showing adhesion between an outer body and an inner body of the diaper according to embodiment 2. In fig. 9, the partial structures of the linear rubbers 4F1, 4R1, etc. which are not relevant to the description in the present figure are omitted. Although omitted in other drawings, the adhesive HM is applied between the inner cover sheet 5 and the back sheet 6, that is, between the inner body and the outer body, so as to extend in the width direction, more specifically, so as to have a long, slender, substantially rectangular shape with a long side in the width direction. The adhesive HM is, for example, a hot melt adhesive. The adhesive HM is disposed in plural numbers in parallel with the width direction at predetermined intervals in the longitudinal direction in the extension of the back sheet 6, and is applied over the extension of the interior body except for the overlapping portion with the linear rubber 4F3 described later. The inner body and the outer body are bonded by an adhesive HM. The application interval of the adhesive HM in the longitudinal direction may be the same.

The adhesive HM is disposed over a wide range in the longitudinal direction of the extension of the interior body, and is disposed in a narrower width than the interior body. In the vicinity of the crotch region 1B, the inner body is narrow, and thus the application region of the adhesive HM is also narrow. In the region where the adhesive HM is disposed, the inner body is reinforced by the rigidity of the cured adhesive HM. The adhesive HM may be applied in a larger area than other portions in a range where the inner body overlaps the linear rubbers 4F2 and 4R 2. By applying the adhesive HM over a large area, the inner body is further reinforced, and is less likely to be deformed by the biasing force of the linear rubbers 4F2 and 4R 2.

As described above, in embodiment 2, the linear rubber 4F3 overlaps the absorber 8 in the thickness direction so as to traverse the extension region of the absorber 8 in the width direction, and forms an overlapping portion. As described above, this overlap corresponds to the vicinity of the pubis of the wearer. In this overlapping portion, the adhesive HM is not disposed, and the non-adhesive region 15 is formed.

The urethral opening of the wearer corresponds to the adhesive HM arrangement area on the crotch side of the end portion on the crotch side of the non-adhesive area 15. In this region, the inner body and the outer body are bonded by the adhesive HM and the inner body is reinforced. The inner body is biased to appropriately contact the skin surface side by the linear rubber 4F3 disposed at the pubic portion. Thus, the diaper 1 according to the present embodiment can appropriately receive the excretory fluid generated from the urethral orifice.

If the adhesive HM is disposed between the inner body and the outer body at the overlapping portion, the biasing force of the linear rubber 4F3 is easily transmitted to the inner body. In a state before the use of the diaper 1, the linear rubber 4F3 is biased to contract the diaper 1 in the width direction. If the force from the linear rubber 4F3 is strongly transmitted to the internal body, the internal body may shrink and bend inward in the width direction at the portion where the linear rubber 4F3 and the internal body overlap in the thickness direction. If the diaper 1 is worn with the inner body folded, the wearing sensation may be deteriorated in addition to the function of the absorber 8.

In the present embodiment, the overlapping portion is a non-adhesive region 15 where the adhesive HM is not disposed between the inner body and the outer body, and the biasing force of the linear rubber 4F3 is suppressed from being directly transmitted to the inner body in the state before the use of the diaper 1. With this configuration, the inner body can be prevented from being folded inward in the width direction at the overlapping portion.

The diaper 1 according to the present embodiment is a pants-type disposable diaper. Regarding the pants-type diaper 1, it is assumed that: at the time of replacement, the side seal 12 is partially torn not from the trunk side but from the thigh side, and the front body region 1F side and the rear body region 1R side of the cover sheet are peeled off. It is difficult for the elderly person who is supposed as the wearer of the diaper 1 for adults to get his hands around to the back. Therefore, when the wearer removes the diaper 1 himself/herself, if the thigh side of the side seal 12 is disposed on the abdomen side, the wearer can easily get his/her hands, and can easily change the diaper.

The linear rubber 4F3 according to embodiment 2 contracts the outer package toward the widthwise center side. In the extension region of the linear rubber 4F3, a non-disposed region where the adhesive HM is not disposed is formed, and this region becomes a non-bonded region 15 where the exterior body and the interior body are not bonded. However, an adhesive HM is disposed on the crotch side of the extension region of the linear rubber 4F3, and the exterior body and the interior body are bonded. In the non-adhesive region 15, the outer body is folded toward the non-skin side without contracting under the urging force of the linear rubber 4F3 by the rigidity of the inner body transmitted from the adhesive portion to the inner body provided on the crotch side. In this way, in the overlapping region of the linear rubber 4F3 and the inner body, the outer body is folded toward the non-skin side. By this bending, the side seal 12 located further outside in the outer case is also bent inward in the left-right direction, and as a result, the side seal 12 is partially bent inward in the width direction, that is, toward the abdomen side in the region corresponding to the linear rubber 4F 3.

On the other hand, the linear rubber 4R3 does not cross the absorber 8 on the back side of the diaper 1. Specifically, the core wrap sheet 7 is partially overlapped with the absorbent core 8c but is not overlapped with the absorbent core 8c in the thickness direction, or is overlapped with the absorbent core 8c and the core wrap sheet 7 in the thickness direction only on the outer side in the width direction of the absorbent core 8 c. In addition, the non-adhesive region 15 is not provided on the back side. With this configuration, the linear rubber 4R3 exerts a weaker force in the vicinity of the side seal 12 than the linear rubber 4F3 exerts in the vicinity of the side seal 12. Thus, the side seal 12 is folded toward the abdomen on the thigh side of the wearer. As a result, the wearer can easily grasp the side seal 12 bent toward the abdomen side from the thigh side, and can easily tear it open for replacement.

Furthermore, the diaper 1 according to embodiment 2 is also easy to wear. If the thigh side of the side seal 12 is folded toward the abdomen side by the difference between the forces applied to the vicinity of the side seal 12 by the linear rubber 4F3 and the linear rubber 4R3, the side seal 12 is easily gripped even when the diaper 1 is worn, and the diaper can be worn accurately even when the elderly wear the diaper by themselves. Further, the diaper which is worn correctly can appropriately prevent leakage of discharged liquid. As described above, in embodiment 2, the diaper 1 which is not easily deviated when worn and is easy to put on and take off can be provided.

The present embodiment has been described above, but the content of the present utility model is not limited to the above embodiment. In the above embodiment, the linear rubber is used to apply a force to the diaper 1 to make it closely contact with the skin surface of the wearer, but a stretchable resin fiber may be used.

The linear rubbers 4F1, 4F2, 4F3 and the linear rubbers 4R1, 4R2, 4R3, which are a plurality of expansion and contraction parts arranged on the cover sheet 4, may extend to the side seal part 12, and the end parts thereof may be fixed by the side seal part 12. With this configuration, even when the linear rubbers 4F1, 4F2, 4F3 and the linear rubbers 4R1, 4R2, 4R3 are peeled off from the cover sheet 4, the linear rubbers can be prevented from losing the urging force.

The embodiments and application examples disclosed above can be combined separately.

Claims (16)

1. An absorbent article having a length in a longitudinal direction and a width in a width direction orthogonal to the longitudinal direction, characterized in that,

the absorbent article is provided with:

an absorber (8) arranged such that the longitudinal direction is along the front-rear direction of the wearer;

a cover sheet (4) which is disposed on the non-skin surface side of the absorber (8) and forms the outer surface of the absorbent article, and which has an adhesive portion for adhering widthwise ends to each other in a lengthwise end region; a kind of electronic device with high-pressure air-conditioning system

A plurality of expansion and contraction parts which are arranged on the cover piece (4) in an extending state,

the plurality of stretchable parts include a 1 st stretchable part formed of a plurality of stretchable members substantially parallel to each other for biasing a waist of a wearer, and a 2 nd stretchable part disposed on a crotch side of the adhesive part and adjacent to the 1 st stretchable part with a gap therebetween, formed of a plurality of stretchable members substantially parallel to each other for biasing an opening into which a leg of the wearer enters,

the distance between the 1 st expansion and contraction part and the 2 nd expansion and contraction part in the vicinity of the adhesive part is equal to or less than a value obtained by dividing the 1 st expansion and contraction part by the number of expansion and contraction members constituting the 2 nd to 4 th regions from the outer side in the longitudinal direction and the expansion and contraction member arranged at the inner side in the longitudinal direction when the 1 st expansion and contraction part is arranged at the inner side in the width direction at the outer side in the width direction of the adhesive part by the four equal parts in the longitudinal direction.

2. The absorbent article of claim 1, wherein the absorbent article comprises,

the distance between the 1 st expansion and contraction part and the 2 nd expansion and contraction part in the vicinity of the adhesive part is equal to or less than a value obtained by dividing a distance between an expansion and contraction member disposed at the most longitudinal outer side and an expansion and contraction member disposed at the most longitudinal inner side of the expansion and contraction members constituting the 2 nd expansion and contraction part by the number of expansion and contraction members constituting the 2 nd expansion and contraction parts at the outer end part in the width direction of the plurality of expansion and contraction parts disposed at the inner side in the width direction of the adhesive part.

3. The absorbent article as claimed in claim 1 or 2, characterized in that,

at the outer end portion in the width direction of the plurality of expansion and contraction portions arranged on the inner side in the width direction than the adhesive portion, the interval of expansion and contraction members constituting the 4 th region from the outer side in the length direction, which constitute the region closest to the inner side in the length direction when the 1 st expansion and contraction portion is quarter-divided in the length direction, is narrower than the interval of expansion and contraction members constituting the 2 nd and 3 rd regions from the outer side in the length direction.

4. The absorbent article as claimed in claim 1 or 2, characterized in that,

The 1 st stretchable portion and the 2 nd stretchable portion are arranged parallel to each other in a predetermined region in a width direction from the adhesive portion on at least one of an abdomen side of the wearer and a back side of the wearer.

5. The absorbent article as claimed in claim 1 or 2, characterized in that,

even when a cover sheet having a form of a plurality of sizes matching the wearer's physique is used, in a form of at least 2 sizes, the 1 st stretch unit and the 2 nd stretch unit at the adhesive portion have the same interval, or the difference between the 1 st stretch unit and the 2 nd stretch unit is within a predetermined range.

6. The absorbent article as claimed in claim 1 or 2, characterized in that,

the plurality of telescoping members are linear telescoping members.

7. The absorbent article as claimed in claim 1 or 2, characterized in that,

the absorber (8) has: an approximately hourglass-shaped absorbent core (8 c) having a widened portion that widens from the crotch portion toward the abdomen and back; and a substantially rectangular core wrap sheet (7) covering the absorbent core,

on the back side, the 2 nd stretch section does not traverse the absorbent core (8 c), and overlaps the core wrap sheet (7) outside the widened section of the absorbent core (8 c).

8. The absorbent article as set forth in claim 7 wherein,

all or half of the plurality of expansion members constituting the 2 nd expansion portion are overlapped with the core wrap sheet (7) mainly on the crotch side of the widened portion.

9. The absorbent article as set forth in claim 7 wherein,

the 2 nd expansion part applies force to the outer side of the width direction of the absorbent core (8 c) in the whole area of the length direction of the widened part.

10. The absorbent article as in claim 8, wherein,

the 2 nd expansion part applies force to the outer side of the width direction of the absorbent core (8 c) at the crotch side of the widened part.

11. The absorbent article as set forth in claim 7 wherein,

the 2 nd expansion and contraction part is contracted in the width direction in the area overlapped with the core wrapping sheet (7).

12. The absorbent article as set forth in claim 7 wherein,

on the abdomen side, the 2 nd expansion part is overlapped in a manner of crossing the absorbent core (8 c) in the width direction.

13. The absorbent article as in claim 12, wherein,

the extended region of the 2 nd expansion part on the abdomen side is a region where the cover sheet (4) and the absorber (8) are not bonded.

14. The absorbent article as claimed in claim 1 or 2, characterized in that,

the distance between the 2 nd expansion and contraction part and the plurality of expansion and contraction members constituting the 2 nd to 4 th regions from the longitudinal end side when the 1 st expansion and contraction part is divided into four in the longitudinal direction is 5mm or more at the outer end part in the width direction of the plurality of expansion and contraction parts arranged at the inner side in the width direction than the adhesive part.

15. The absorbent article as claimed in claim 1 or 2, characterized in that,

the 1 st expansion and contraction part applies force to the abdomen and the back of the wearer in the width direction.

16. The absorbent article as in claim 15, wherein,

a part of the plurality of expansion members constituting the 1 st expansion portion overlaps with a longitudinal end portion of the absorber (8), and a part of the plurality of expansion members overlapping with the longitudinal end portion of the absorber (8) extends beyond the longitudinal end portion of the absorber (8) to the other end in the width direction of the cover sheet (4).

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