CN219763761U

CN219763761U - Absorbent article

Info

Publication number: CN219763761U
Application number: CN202320140827.7U
Authority: CN
Inventors: 花生裕之; 吉田英聪; 金田悠太郎; 丹下雄贵; 笹津嵩礼
Original assignee: Oji Holdings Corp
Current assignee: Oji Holdings Corp
Priority date: 2022-02-28
Filing date: 2023-02-07
Publication date: 2023-09-29
Anticipated expiration: 2033-02-07
Also published as: CN116650221A

Abstract

The absorbent article is provided with: an absorber (8) which is provided at a position including the crotch and can absorb the discharged liquid of the wearer; an outer body having a waist opening through which the abdomen of the wearer can be inserted and two leg opening portions through which the legs of the wearer can be inserted, and disposed at a position closer to the non-skin surface side of the wearer than the absorber (8); a 1 st stretchable member provided on the abdomen side of the wearer so as to extend along one leg hole opening, and so as to cross the crotch portion, and so as to extend along the other leg hole opening, and provided in an extended state on the outer body; and a pair of right and left 2 nd stretchable members provided in the outer body in an extended state on the back side of the wearer, the inner end portions in the width direction being disposed in the vicinity of the region overlapping the absorbent body when viewed in the thickness direction, and pulling the absorbent body to the outer side in the width direction.

Description

Absorbent article

Technical Field

The present utility model relates to an absorbent article.

Background

Absorbent articles such as disposable diapers, diaper pads, and physiological products have been developed (for example, refer to japanese patent application laid-open publication No. 2019-115459). Japanese patent laying-open No. 2019-115459 discloses a disposable diaper provided with a stretchable member at a portion surrounding a leg portion of a wearer. The disposable diaper is brought into close contact with the leg of the wearer by contraction of the stretchable member.

Disclosure of Invention

When the stretchable member disposed on the absorbent article is contracted, a force in a contraction direction acts on the absorber of the absorbent article, and the absorber is deformed in the contraction direction of the stretchable member by the contraction force of the stretchable member. When the absorber on the back side of the absorbent article is deformed, the absorber may get caught in the cleft (slit) of the buttocks of the wearer, and the wearing feel may be reduced.

The present utility model provides a technology capable of suppressing the decrease of wearing feeling.

In the present utility model, 2 stretchable members are provided to pull the absorber to the outside in the width direction.

Specifically, an absorbent article according to an aspect of the present utility model has a length along a longitudinal direction and a width along a width direction orthogonal to the longitudinal direction, and comprises: an absorber which is provided at a position including a crotch portion and is capable of absorbing discharged liquid of a wearer; an outer body having a waist opening through which the abdomen of the wearer can be inserted and two leg opening portions through which the legs of the wearer can be inserted, and disposed on the non-skin surface side of the wearer with respect to the absorbent body; a 1 st stretchable member provided on the outer body in an extended state, the 1 st stretchable member extending along the leg hole opening on the abdomen side of the wearer, the 1 st stretchable member being provided so as to traverse the crotch portion and extend along the leg hole opening on the other side; and a pair of right and left 2 nd stretchable members, the pair of right and left 2 nd stretchable members being provided in the outer body in an extended state on the back side of the wearer, the inner ends of the pair of right and left 2 nd stretchable members in the width direction being disposed in the vicinity of a region overlapping the absorber when viewed in the thickness direction, the pair of right and left 2 nd stretchable members pulling the absorber to the outer side in the width direction.

In the absorbent article according to the above aspect, the inner end portion of the 2 nd stretchable member in the width direction may overlap the absorbent body when viewed in the thickness direction, and the stretchable direction may have a component in the width direction.

In the absorbent article according to the above aspect, a non-adhesive region where the absorbent body and the outer body are non-adhesive may be provided in an overlapping region of the crotch portion where the 1 st stretchable member and the absorbent body overlap.

The absorbent article according to the above aspect may further include a 3 rd stretchable member that is provided in the outer body in an extended state along the waist opening and stretches in the width direction, and the 1 st stretchable member may have a contractile force that contracts a part or all of the outer body outside the overlapping region in the width direction to a position inside the overlapping region in the width direction in a state where the waist opening is extended.

In the absorbent article according to the above aspect, the 2 nd stretchable member may extend along the leg hole opening portion to a position outside the absorber in the width direction on the back side of the wearer.

In the absorbent article according to the above aspect, the range in which the front outer body overlaps the leg hole opening may be smaller than the range in which the rear outer body overlaps the leg hole opening, among the equal distances with respect to the center in the longitudinal direction.

In the absorbent article according to the above aspect, a crease extending in the width direction may be formed in the outer body in front of and behind a region corresponding to the anus of the wearer.

In the absorbent article according to the above aspect, the crease may be formed between inner side ends in the width direction of the 2 nd stretchable member on both the left and right sides.

In the absorbent article according to the above aspect, another fold extending in the width direction may be formed in the outer cover between the front and rear folds formed in the region corresponding to the anus of the wearer.

In the absorbent article according to the above aspect, the 1 st stretchable member may have a component having a stretchable direction that is the longitudinal direction at a position outside the absorbent body in the width direction.

According to the present utility model, the wearing sensation can be suppressed from being reduced.

Drawings

Features, advantages, and technical and industrial significance of 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 example of a perspective view of a diaper according to embodiment 1.

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

Fig. 3A and 3B are an example of an developed view of the diaper according to embodiment 1.

Fig. 4 is an example of an developed view of a diaper according to a modification of embodiment 1.

Fig. 5 is an example of an exploded perspective view of the diaper according to embodiment 2.

Fig. 6A and 6B are an example of an developed view of the diaper according to embodiment 2.

Fig. 7 is an example of an exploded perspective view of the diaper according to embodiment 3.

Detailed Description

< embodiment 1>

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.

Fig. 1 is an example of a perspective view of an adult pants-type disposable diaper (hereinafter simply referred to as "diaper") according to embodiment 1. 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 portion is referred to as a longitudinal direction (also referred to as a front-rear direction). The crotch portion disposed in the crotch (disposed opposite the crotch) of the wearer is located between the front body (one side in the longitudinal direction) and the rear body (the other side in the longitudinal direction) (the center in the longitudinal direction). In 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 a thickness direction, and the direction perpendicular to either the longitudinal direction or the thickness direction is referred to as a width direction (also referred to as a left-right direction). The case of viewing from the thickness direction is referred to as 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 utility model refers to a direction that coincides with the front, rear, left, and right of the wearer of the diaper 1 when the diaper is worn on the wearer. For example, in the present utility model, the term "left-right direction" refers to a direction that coincides with the left-right 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 a waist opening through which the abdomen of the wearer can be inserted and a pair of left and right leg openings through which the left and right lower limbs of the wearer can be inserted is exemplified. In the present embodiment, an adult pants-type disposable diaper is exemplified, but the "absorbent article" in the present application is not limited to the adult pants-type disposable diaper. The term "absorbent article" as used herein includes pants-type disposable diapers for children.

The diaper 1 has: a crotch region 1B, wherein the crotch region 1B is a portion corresponding to a crotch portion that covers a pudendum (crotch) of a wearer in a worn state; a front body region 1F, the front body region 1F being a portion corresponding to a front body at a waist of a wearer and covering an abdomen side of the wearer; and a back region 1R, the back region 1R being a portion corresponding to a back at a waist of a wearer and for covering a 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. Therefore, in the diaper 1, the trunk opening 2T (an example of the "waistline opening" of the present disclosure) is formed by the upper edge of the front body region 1F and the upper edge of the back 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 through the left lower limb opening 2L and the right lower limb of the wearer inserted through 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. The left lower limb opening 2L and the right lower limb opening 2R are examples of the "two leg hole openings" of the present disclosure.

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 becomes a liquid outflow path between the diaper 1 and the skin of the wearer, the three-dimensional gather 3BL is provided in the left leg opening 2L surrounding the thigh of the left leg of the wearer, the three-dimensional gather 3BR is provided in the right leg opening 2R surrounding the thigh of the right leg of the wearer, and the waist gather 3R and the abdomen gather 12 are provided in the portion surrounding the abdomen of the wearer. Leg gathers 3LF, 3LR (leg gathers 3LR are not shown in fig. 1) are provided at positions surrounding the root portions of the legs of the wearer. Further, leg gathers 3LF are provided in the front body region 1F, and leg gathers 3LR are provided in the rear body region 1R. In fig. 1, only the leg gather 3LF is illustrated. The three-dimensional gathers 3BL, 3BR and the waist gathers 3R are contracted by the elastic force of the stretchable member, and are thereby brought into close contact with the skin of the wearer. Further, the leg gathers 3LF, 3LR prevent the occurrence of gaps between the root portions of the legs of the wearer and the diaper 1. Therefore, the discharged liquid discharged from the private parts 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 of a wearer. In the case of using the diaper 1 and the inner pad in combination, the inner pad is placed on the skin surface side of the diaper 1 so as to abut against the discharge hole of the wearer. The discharged liquid is first absorbed by the inner pad, and only the discharged liquid which cannot be absorbed by the inner pad reaches the absorber of the diaper 1 and is further absorbed. Therefore, 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 discharged liquid can be absorbed by the inner pad, only the inner pad needs to be replaced even if the discharged liquid is discharged, so that the intervention (nursing) cost can be reduced. In addition, the frequency of changing the diaper 1 can be reduced, and the diaper 1 can be used for a long period of time.

Fig. 2 is an example of an exploded perspective view of the diaper 1 according to embodiment 1. 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 bonded together to form the outer surface of the diaper 1, and the front end portion on the front region 1F side and the rear end portion on the rear region 1R side are substantially the same in shape and size. 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 skin surface side of the wearer. Between the cover sheet 4 and the inner cover sheet 5, stretchable members for forming the waist gather 3R, the abdomen gather 12, and the leg gathers 3LF, 3LR are provided. In the present embodiment, a linear rubber is used as the expansion member. Further, as the expansion and contraction member, a belt-shaped expansion and contraction 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 discharged materials. Here, examples of the liquid-impermeable thermoplastic resin include Polyethylene (PE) and polypropylene (PP). Hereinafter, the configuration in which the absorber 8 and the back sheet 6, the top sheet 9, and the side sheets 10L, 10R are combined with each other with respect to the absorber 8 is referred to as an inner body, and as a concept corresponding to the inner body, the cover sheet 4 and the inner cover sheet 5 in which the linear rubber is disposed may be referred to as an outer body (an example of an "outer body" in the present disclosure).

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 through the crotch in the longitudinal direction and a predetermined width in the width direction orthogonal to the longitudinal direction. The absorber 8 and the top sheet 9 are sheet-like members having a substantially rectangular appearance similar to 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 back sheet 6 is a sheet made of a liquid impermeable thermoplastic resin for suppressing leakage of discharged material. Further, the back sheet 6 is provided with minute holes. The holes can be ventilated while preventing liquid permeation. The holes are provided, for example, in the region overlapping the absorber 8. The top sheet 9 is a sheet-like member disposed on the skin surface side of the wearer so as to cover the water absorption surface of the absorber 8. Part or all of the top sheet 9 has liquid permeability. Therefore, in a state where the diaper 1 is worn, liquid discharged 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 and a core wrap sheet 7 wrapped around the absorbent core 8 c. The absorbent core 8c is of a substantially hourglass shape with narrowed portions. The absorbent core 8c has a structure in which a particulate absorbent resin (high molecular absorbent material) such as SAP (super 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 cellulose-based fibers such as pulp fibers, rayon fibers, and cotton fibers, and the like, and the fibers are hydrophilized with synthetic fibers such as polyethylene, polypropylene, and polyethylene terephthalate. When absorbing liquid discharged from the wearer, the absorbent core 8c swells the absorbent resin in the gaps held in the short fibers to hold the liquid in the short fibers. In the present embodiment, the absorbent core 8c is substantially hourglass-shaped with a narrowed central portion. The absorbent core 8c may take an appropriate shape according to the purpose. Examples of the shape of the absorbent core 8c include a rectangular shape, an elliptical shape, and various other shapes. In the present embodiment, the absorbent core 8c is formed of 1 pad, but the absorbent core 8c may be formed of a plurality of pads.

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 described above is less likely to be mixed into other structures. In addition, the deformation of the absorbent core 8c is suppressed. The core wrap sheet 7 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 wrapped with another sheet (for example, side sheets 10L and 10R, back sheet 6, and top sheet 9 described later). Further, the absorber 8 is wrapped with the back sheet 6 and the top sheet 9, and the shape of the body can be suppressed 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. Therefore, when the back sheet 6, the absorber 8, and the top sheet 9 are laminated to cover the wearer's pudendum (crotch), both longitudinal ends of each 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, the discharged liquid is brought into contact with the absorber 8 via the top sheet 9 regardless of whether the wearer discharges the liquid to the outside in any one of the abdomen-down posture and the back-down posture.

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 in a state of being elongated in 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 of the cover sheet 4, which is the left edge of the back 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 back body region 1R, are joined to each other, the side sheets 10L, 10R are pulled in the longitudinal direction by the contraction force of the linear rubbers 10L1, 10R1, and stand up from the top sheet 9 along the folding lines 10L2, 10R2, as in the diaper 1 in the finished state shown in fig. 1. 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.

Here, when the three-dimensional gathers 3BL and 3BR are formed, the side panels 10L and 10R are provided with a width-directional interval between the standing lines of the three-dimensional gathers 3BL and 3BR so as to allow the inner pad to enter. The bonding method of the edges 4F4 and 4R4, and the edges 4F5 and 4R5 is not particularly limited, and may be performed by heat sealing, high-frequency sealing, ultrasonic sealing, or the like, for example.

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 backsheet 6, the absorber 8, the top sheet 9, and the side sheets 10L, 10R interposed therebetween. The end sheets 11F and 11R are elongated 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 contact portion of the diaper 1. The end pieces 11F and 11R are coated with an adhesive, and bonded to the inner cover piece 5 with 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 sense of discomfort.

Fig. 3A and 3B are examples of diagrams schematically showing a state in which the diaper 1 according to embodiment 1 is developed and extended. Fig. 3A schematically shows the internal configuration of the diaper 1 in an unfolded and extended state when viewed from the left side. Fig. 3B is a plan view of the diaper 1 in an unfolded and extended state.

As shown in fig. 3B, the linear rubber 4F3 (an example of the "1 st stretchable member" of the present disclosure) forming the leg gathers 3LF is provided along the edges of the front body region 1F side of the right and left lower limb openings 2R and 2L into which the legs of the wearer enter when the diaper 1 is assembled. The linear rubber 4F3 is bonded to the cover sheet 4 and the inner cover sheet 5 in an elongated state. The linear rubber 4F3 is disposed in the crotch region 1B on the front side so as to cross in the lateral direction. At the portion where the linear rubber 4F3 is provided so as to traverse in the left-right direction in this way, the linear rubber 4F3 overlaps the absorber 8 in the thickness direction of the diaper 1. The widthwise central portion of such a transverse region is a region corresponding to the urethral orifice of the wearer when the diaper 1 is worn. In the region overlapping the absorber 8 in the thickness direction, the arrangement of the linear rubber 4F3 is not limited to the crossing as shown in fig. 3B. The extending direction of the linear rubber 4F3 may have a component in the width direction, and preferably the component in the width direction of the extending direction of the linear rubber 4F3 (the portion in the width direction of the extending direction of the linear rubber 4F 3) may be larger than the component in the length direction.

On the other hand, the linear rubber 4R3 (an example of the "pair of right and left 2 nd expansion members" of the present disclosure) forming the leg gathers 3LR is provided along the edges of the right lower limb opening portion 2R and the rear body region 1R side of the left lower limb opening portion 2L. The linear rubber 4R3 extends along the left and right lower limb openings 2R, 2L to the outside of the absorber 8 in the width direction of the diaper 1 on the back side of the wearer. 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 center in the width direction, and the left linear rubber 4R3 and the right linear rubber 4R3 are not connected.

The inner cover sheet 5 and the absorber 8 are suitably bonded with an adhesive through the back sheet 6 from the front region 1F to the back region 1R. However, as shown in fig. 3B, in the region traversed by the linear rubber 4F3 in the precursor region 1F, the inner cover sheet 5 and the absorber 8 are set to be unbonded (set to be unbonded region 15). In fact, in the non-adhesive region 15, the inner cover sheet 5 and the back sheet 6 are made non-adhesive. 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.

One end side of the cover sheet 4 is folded back at folding lines 4FF and 4RF shown in fig. 2. The above-described waist gather 3R is formed by bonding the linear rubber 4F1 in an elongated state to the front body region 1F of the cover sheet 4 and bonding the linear rubber 4R1 in an elongated state to the rear body region 1R of the cover sheet 4. The linear rubbers 4F1, 4F2 are provided in the order of the linear rubbers 4F1, 4F2 from the side of the folding line 4FF along the folding line 4FF forming the upper edge of the precursor region 1F when folded back. Similarly, the abdominal gather 12 is formed by adhering the linear rubber 4F2 in an elongated state to the front body region 1F of the cover sheet 4 and adhering the linear rubber 4R2 in an elongated state to the rear body region 1R of the cover sheet 4. 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 back body region 1R when folded back, as with the linear rubbers 4F1 and 4F 2.

Therefore, 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. Therefore, 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 and 4F2 and the linear rubbers 4R1 and 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 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 part of 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, 4R2 are disposed in parallel at predetermined intervals. The linear rubbers 4F1 and 4R1 are strongly fastened to the abdominal circumference of the wearer at positions above the linear rubbers 4F2 and 4R2 in the state where the diaper 1 is worn. The linear rubbers 4F1 and 4R1 serve to prevent the diaper 1 from being put on the wearer by being brought into close contact with the wearer, thereby preventing displacement of the wearing position and leakage of discharged liquid from the abdomen and back. The linear rubbers 4F2, 4R2 alleviate the sense of compression to the wearer caused by the contraction force of the linear rubbers 4F1, 4R 1. The linear rubbers 4F1, 4F2 and the linear rubbers 4R1, 4R2 are examples of the 3 rd expansion and contraction member in the present disclosure.

The cover sheet 4 is folded back at the folded-back 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 (see fig. 2) 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 sheets overlap is not limited to a state in which sheets overlapping each other are overlapped with each other in a state of being in full contact with each other, but includes a concept in which a part of the sheets overlap with 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.

As shown in fig. 3B, in the crotch region 1B on the back side (back side), the inner end portion in the width direction of the linear rubber 4R3 bonded to the outer body in the extended state is disposed in the vicinity of the region overlapping the absorber 8 when the diaper 1 is viewed in the thickness direction. The linear rubber 4R3 is bonded to the core wrap sheet 7 of the absorber 8 via the inner cover sheet 5 and the back sheet 6. In the present embodiment, when the diaper 1 is viewed in the thickness direction, the inner end portion in the width direction of the linear rubber 4R3 overlaps the absorbent core 8c of the absorber 8. Thereby, the linear rubber 4R3 can pull the absorbent core 8c outward in the width direction. Further, the linear rubber 4R3 may be disposed so as to overlap the core-wrapping sheet 7, and the absorbent core 8c wrapped by the core-wrapping sheet may be pulled by the linear rubber 4R 3. Further, a region corresponding to the anus of the wearer is located between the pair of linear rubbers 4R 3. The linear rubber 4R3 can pull the region of the absorber 8 corresponding to the anus outward in the width direction. The diaper 1 according to the present embodiment suppresses the absorber 8 from entering (sinking) into the cleft (slit) of the buttocks by pulling the absorber 8 to the outside in the width direction. Therefore, the diaper 1 can suppress a decrease in wearing feeling.

Further, in the diaper 1, the linear rubbers 4F1 and 4F2 are adhered to the waist and the linear rubbers 4F3 are adhered to the leg holes on the abdomen side, so that the vicinity of the anus of the wearer on the back side can be lifted from the wearer to form a space in the vicinity of the anus, and feces can be stored in the space. This can also suppress the decrease in the wearing feeling of the diaper 1. In addition, the diaper 1 can suppress leakage from the widthwise end portion, that is, lateral leakage, by pressing the widthwise end portion of the absorber 8 against the skin surface of the wearer on the back side by the contraction force of the linear rubber 4R 3.

The inner end portion in the width direction of the linear rubber 4F3 has a component in the expansion and contraction direction of the diaper 1 in the width direction. The linear rubber 4F3 can pull the absorber 8 outward in the width direction.

In the present embodiment, the linear rubber 4R3 that pulls the absorber 8 outward in the width direction on the back side of the wearer is a stretchable member for forming leg gathers on the back side. Here, the linear rubber 4R3 is preferably disposed on the left and right sides of the anus-corresponding region of the diaper 1, and is disposed at a position where the anus-corresponding region of the absorber 8 can be pulled outward in the width direction. This position is a position closer to the back side (the rear body region 1R side) than the central portion in the longitudinal direction of the diaper 1. By not providing a non-bonded region between the linear rubber 4R3 and the absorber 8, the linear rubber 4R3 can pull the absorber 8 to the outside in the width direction, and a space can be formed between the natal cleft of the buttocks of the wearer and the top sheet 9. Further, a stretchable member for forming leg gathers and a stretchable member for pulling the absorber 8 to the outside in the width direction on the back side of the wearer may be provided, respectively.

As shown in fig. 3B, in the crotch region 1B on the front side, the inner cover sheet 5 and the absorber 8 are non-bonded in the non-bonded region 15 traversed by the linear rubber 4F 3. Therefore, the absorber 8 is not contracted in the width direction by contraction of the linear rubber 4F3 provided between the cover sheet 4 and the inner cover sheet 5, but is pressed against the skin. Therefore, the diaper 1 is abutted against the skin of the wearer by the linear rubber 4F3 on the abdomen side, and the back side can be separated from the skin of the wearer more reliably. Such non-adhesive region 15 is disposed in a region corresponding to the urethral orifice of the wearer. Therefore, the diaper 1 suppresses deformation of the absorber 8, and the absorber 8 in a flat state without wrinkles or the like is easily brought into contact with the urethral orifice of the wearer. Therefore, urine excreted from the wearer can be immediately absorbed, and leakage of urine excreted from the wearer to the outside of the diaper 1 can be prevented. In addition, in the case of using the inner pad in combination, since the inner pad is pressed against the urethral orifice by the absorber 8 which does not generate wrinkles or the like, urine can be prevented from leaking out of the diaper 1 as well.

The linear rubber 4F3 is a stretchable member for forming leg gathers on the abdomen side. The linear rubber 4F3 is disposed on the abdomen side (front body region 1F side) of the longitudinal center portion of the diaper 1. The linear rubber 4F3 preferably exerts a contraction force also in the widthwise central portion of the diaper 1. Further, by providing the linear rubber 4F3 and the linear rubber 4R3 at positions symmetrical in the front-rear direction with respect to the central portion in the longitudinal direction of the diaper 1, the back side of the diaper 1 can be more reliably lifted from the skin surface of the wearer.

Further, since wrinkles and the like are suppressed from occurring in the absorber 8, when the wearer is a male, the wearer can hold the male genitals by the absorber 8 and press them against the skin side, thereby keeping the urination direction constant. Therefore, leakage of urine to the outside of the diaper 1 can be suppressed.

In addition, according to the diaper 1 described above, as shown in fig. 3B, the linear rubber 4R3 is cut at the widthwise central portion. Therefore, the elastic force of the linear rubber 4R3 does not act on the cover sheet 4 and the inner cover sheet 5 in the region where the linear rubber 4R3 is cut, and the cover sheet 4 and the inner cover sheet 5 in this region do not shrink. Therefore, damage to the cover sheet 4 and the inner cover sheet 5 due to shrinkage can be suppressed. Further, since the diaper 1 suppresses deformation of the absorber 8, deterioration of the absorption performance due to deformation of the absorber 8 does not occur.

Further, according to the diaper 1 of the present embodiment, the contraction force acts on the cover sheet 4 and the inner cover sheet 5 in the width direction by the contraction of the linear rubber 4F3 extending in the width direction. The cover sheet 4 and the inner cover sheet 5, which are portions where the contraction force acts in the width direction, are not bonded to the absorber 8. Therefore, the regions 55L and 55R (see fig. 3B) of the cover sheet 4 and the inner cover sheet 5, which are located on the outer side in the width direction than the absorber 8, are contracted so as to overlap the absorber 8 in the thickness direction. In the diaper 1, the linear rubbers 4F3 and 4R3 have a contraction force that contracts the regions 55L and 55R on the outer side in the width direction than the overlapping region of the crotch region 1B overlapping the absorber 8 to the inner side in the width direction than the overlapping region in a state where the trunk opening 2T is extended. Therefore, when the diaper 1 is worn by extending the trunk opening 2T, the wearer can prevent the wearer's thumb from getting caught in the areas 55L, 55R when putting the legs into the left and right lower limb openings 2L, 2R for wearing the diaper 1. The diaper 1 can reduce the possibility that the wearer may fall down due to unbalance caused by the wearer's feet being caught in the outer body of the diaper 1.

The linear rubber 4R3 is cut at the widthwise central portion and does not extend in the widthwise direction. In the crotch region 1B on the back side, the cover sheet 4 and the inner cover sheet 5 are bonded to the absorber 8 via the backsheet 6. Therefore, the linear rubber 4R3 integrally pulls the cover sheet 4, the inner cover sheet 5, and the back sheet 6 outward in the width direction of the diaper 1 on the rear body side of the crotch region 1B, and therefore, the areas 56L, 56R (see fig. 3B) of the cover sheet 4 and the inner cover sheet 5 existing outward in the width direction of the absorber 8 can be suppressed from shrinking so as to overlap the absorber 8 in the thickness direction. Therefore, the following state is established: on the front body side, the regions 55L and 55R overlap the absorber 8 in the thickness direction, and on the rear body side, the regions 56L and 56R extend toward the left lower limb opening 2L and the right lower limb opening 2R, respectively. Therefore, the front-rear distinction of the diaper 1 becomes easy, and thus the convenience of the wearer improves.

In the state shown in fig. 3B, when the positions at the same distance as each other when viewed from the central positions of the abdomen-side end portion and the back-side end portion of the outer body of the diaper 1 are compared with each other, the overlapping range of the abdomen-side outer body and the left and right lower limb openings 2L, 2R is smaller than the overlapping range of the back-side outer body and the left and right lower limb openings 2L, 2R. This is because, by contracting the linear rubber 4F3 on the abdomen side, the regions 55L and 55R of the cover sheet 4 and the inner cover sheet 5 contract inward in the width direction, which is the direction in which they overlap the absorber 8, whereas on the back side, the linear rubber 4R3 pulls the regions 56L and 56R of the cover sheet 4 and the inner cover sheet 5 outward in the width direction. The diaper 1 can reduce the possibility that the wearer may fall down due to unbalance caused by the wearer's feet being caught in the outer body of the diaper 1. The diaper 1 can be distinguished in the front-rear direction by the size of the range in which the outer body overlaps with the left and right lower limb openings 2L, 2R. The regions 55L and 55R and the regions 56L and 56R are disposed equidistantly from the center in the longitudinal direction of the diaper 1 in the state shown in fig. 3B. The equidistance is about 5cm to 8cm from the center in the longitudinal direction. By disposing the regions 55L and 55R within this distance, the thumb of the wearer can be prevented from getting caught on the regions 55L and 55R.

Here, when the diaper 1 is folded at the fold line extending in the width direction at the longitudinal direction center portion, the range in which the regions 55L, 55R of the outer body on the abdomen side overlap the left and right lower limb openings 2L, 2R is smaller than the range in which the regions 56L, 56R of the outer body on the back side overlap the left and right lower limb openings 2L, 2R. With respect to the method for measuring the overlapping range, 1 st, the diaper 1 is folded in half at a folding line extending in the width direction at the center in the longitudinal direction. 2, the diaper 1 is placed on the table in a natural state with its abdomen side and back side aligned. 3, the diaper 1 is kept on the table for 30 seconds to confirm the state. The results of measuring the overlapping ranges of the regions 55L and 55R and the regions 56L and 56R with the left and right lower limb openings 2L and 2R are as described above. According to the diaper 1, the wearer's thumb can be prevented from getting caught in the regions 55L, 55R, and the distinction between front and rear becomes easy.

The cover sheet 4 and the inner cover sheet 5 have shapes that are wider on the front side and the rear side than the center in the front-rear direction (longitudinal direction), respectively, and it is assumed that the amounts of extension of the regions 55L, 55R and the regions 56L, 56R to the left and right lower limb opening portions 2L, 2R are substantially the same when the linear rubbers 4F3, 4R3 are not provided. In the present embodiment, as described above, the amounts of the protruding areas 55L, 55R are reduced by the contraction of the linear rubber 4F 3. Further, the heels of the wearer pass through the back sides of the left and right lower limb openings 2L, 2R, but the possibility of the heels getting caught on the outer body is low compared to the thumbs, and the areas 56L, 56R on the heel passing side are projected from the left and right lower limb openings 2L, 2R, whereby the wearer can easily recognize the back side, which is the heel side of the diaper 1.

In addition, according to the diaper 1 described above, the backsheet 6 is provided with minute holes. The portion where the hole is provided is a region overlapping with the absorber 8. The back sheet 6 is provided with an inner cover sheet 5 on the non-skin surface side, and the inner cover sheet 5 is non-bonded to the absorber 8 in a non-bonded region 15. Therefore, the air in the diaper 1 communicates with the outside through the minute holes provided in the backsheet 6 and the non-adhesive region 15 between the absorber 8 and the inner cover sheet 5. Thus, the ventilation in the diaper 1 is improved. In addition, according to the diaper 1 of the present embodiment, the cover sheet 4 and the inner cover sheet 5 contract with respect to the absorber 8 by contraction of the linear rubber 4F 3. Therefore, in the non-bonded region 15, the space between the absorber 8 and the inner cover sheet 5 is enlarged, and the ventilation in the diaper 1 is further improved. Further, the linear rubber 4F3 is provided so as to include a region corresponding to the urethral orifice of the wearer. Thus, such expansion of space is achieved in the region corresponding to the urethral orifice. The diaper 1 can ensure ventilation in the region corresponding to the urethral orifice which is easily wetted, and can suppress skin problems around the urethral orifice.

Further, on the abdomen side, the linear rubber 4F3 traverses the crotch region 1B, whereby the outer body on the abdomen side of the crotch region 1B contracts in the width direction. On the other hand, on the back side, the linear rubber 4R3 does not traverse the crotch region 1B, and the outer body on the back side of the crotch region 1B does not shrink in the width direction. Therefore, the diaper 1 can be differentiated in the front-rear direction depending on the appearance and skin feel of the outer body due to the shrinkage in the width direction. For example, in a state where the diaper 1 is folded along a crease extending in the width direction in the crotch region 1B (a state of being stored in a package), the diaper 1 can improve convenience when the front-rear direction can be distinguished according to the difference in skin touch.

< modification >

In the above embodiment, the absorber 8 and the inner cover sheet 5 are not bonded in the non-bonded region 15 where the linear rubber 4F3 crosses in the width direction, but the absorber 8 and the inner cover sheet 5 may be partially bonded in the non-bonded region 15. In this case, the absorber 8 can be prevented from being displaced relative to the inner cover sheet 5. The partial bonding portion may be, for example, a widthwise central portion.

In the above embodiment, the regions 55L and 55R of the cover sheet 4 and the inner cover sheet 5 are contracted in the width direction by contraction of the linear rubber 4F3, and the regions 56L and 56R are in a state of extending toward the left lower limb opening 2L and the right lower limb opening 2R, respectively, but the whole of the regions 55L and 55R may be contracted in the width direction so as to overlap the absorber 8 by contraction force of the linear rubber 4F3, and the whole of the regions 56L and 56R may be contracted in the width direction so as to overlap the absorber 8 by contraction force of the linear rubber 4R 3.

The linear rubber 4F3 may have a different color from the cover sheet 4 and the inner cover sheet 5 as the outer body. In the present embodiment, the entirety of the cover sheet 4 and the inner cover sheet 5 is white, and the entirety of the linear rubber 4F3 is colored (for example, blue, red, or the like) other than white. The whole of the linear rubber 4R3 has the same color as the outer body. Generally, diapers are mostly formed in the same color as a whole. For example, most of underpants type diapers are formed in a white color as a whole. In addition, the front and rear shapes and structures of the pants-type diaper are substantially the same, and it may be difficult to distinguish the front and rear. On the other hand, in the diaper 1 of the present embodiment, the linear rubber 4F3 provided on the abdomen side has a color different from that of the exterior body, and the linear rubber 4R3 provided on the back side has the same color as that of the exterior body. Thus, the diaper 1 can be easily distinguished between front and rear. The linear rubber 4F3 may have a part of a color different from that of the outer body. For example, the linear rubber 4F3 may have a color different from that of the outer body only in the portion extending in the width direction in the crotch region 1B.

The linear rubbers 4F1 and 4F2 provided on the abdomen side of the outer body in an elongated state along the trunk opening 2T and extending and contracting in the width direction have a color different from that of the outer body (for example, a color such as red or blue). The diaper 1 of the present embodiment can have the contour of the waist on the abdomen side made clear by the linear rubbers 4F1 and 4F2 and the contour of the leg band on the abdomen side made clear by the linear rubber 4F3, thereby making it possible to change the impression greatly on the abdomen side and the back side. This makes it possible to more easily distinguish the diaper 1 from each other in the front-rear direction.

In the present embodiment, a non-adhesive region 15 is provided in a region where the linear rubber 4F3 and the absorber 8 overlap. If the non-adhesive region 15 is not provided and the absorber 8 and the inner cover sheet 5 are adhered to each other via the back sheet 6 in this region, the contraction force of the linear rubber 4F3 acts so as to contract the absorber in the width direction, and therefore the outer cover is involved in the irregularities generated in the absorber 8, and there is a possibility that the linear rubber 4F3 cannot be visually recognized from the outside in this region. In the present embodiment, since the non-adhesive region 15 is provided, the linear rubber 4F3 can be visually recognized from the outside.

Next, a diaper 1 according to a modification of the present embodiment will be described with reference to fig. 4. Fig. 4 is a plan view showing a state in which the diaper according to the modification is unfolded and stretched. In the diaper 1, the area facing the wearer's anus, that is, the anus-corresponding area 40 corresponding to the wearer's anus is approximately the position shown in fig. 4. Folds 41 extending in the width direction are formed in the front and rear of the anus corresponding region 40 in the cover sheet 4 and the inner cover sheet 5 as the outer body of the diaper 1. Folds 41 are formed in front and rear of the anus-corresponding region 40. The folds 41 are formed as valley folds when the diaper 1 is viewed from the skin side. Therefore, the absorbent body 8 and the top sheet 9 on the skin surface side of the outer body are also folded up on the fold 41, and when viewed from the skin surface side, the outer body, the absorbent body 8, and the top sheet 9 are formed in a shape recessed on the fold 41 toward the non-skin surface side. The fold 41 also functions as a support portion for suppressing shrinkage of the outer body and the absorber 8 on the skin surface side. By providing the fold 41, the diaper 1 can form a space between the wearer and the anus corresponding region 40, and can suppress the absorbent body 8 from sinking into the cleft of the buttocks. In addition, the diaper 1 can form a space for containing feces by forming a space between the wearer and the anus corresponding region 40. Therefore, the diaper 1 can suppress a decrease in wearing feeling. In addition, the diaper 1 can suppress the exposure of the natal cleft of the wearer from the diaper 1 by suppressing the shrinkage of the outer body and the absorber 8 on the skin surface side thereof by the fold 41.

Further, creases 41 are formed between inner ends of the linear rubber 4R3 on the left and right sides in the width direction. Crease 41 may be provided on the extension line of linear rubber 4R3 on the left and right sides. By pulling the fold 41 outward in the width direction by the linear rubber 4R3, the fold 41 expands in the width direction, and the absorber 8 can be separated from the skin of the wearer from the fold 41 in the anus-corresponding region 40.

In addition, another crease 42 may be formed between the front and rear creases 41 of the anus-corresponding region 40. The crease 42 is formed in the cover sheet 4 and the inner cover sheet 5 so as to extend in the width direction. The folds 42 are formed as valley folds when the diaper 1 is viewed from the skin side. Therefore, the absorbent body 8 and the top sheet 9 on the skin surface side of the outer body are also folded up on the fold 42, and the outer body, the absorbent body 8, and the top sheet 9 are formed in a shape recessed on the fold 42 toward the non-skin surface side when viewed from the skin surface side. Thus, the diaper 1 can more reliably form a space between the wearer and the anus corresponding region 40.

Folds 41 and 42 are formed on the extension lines of the inner ends of the left and right linear rubbers 4R3 in the width direction. Folds 41 and 42 are naturally formed by pulling the outer body outward in the width direction by linear rubber 4R 3. The folds 41, 42 may be formed intentionally by bending the outer package.

In the present modification, as shown in fig. 4, the non-adhesive region 15 extends toward the front body region 1F and toward the rear body region 1R beyond the portion where the linear rubber 4F3 traverses the crotch region 1B (hereinafter, this portion may be referred to as a "traversing portion of the linear rubber 4F 3"). In fig. 4, the non-adhesive region 15 is illustrated as being painted. As shown in fig. 4, the linear rubber 4F3 has a component in the longitudinal direction of the diaper 1 at a position outside the absorber 8 in the width direction of the diaper 1. Here, the longitudinal component is a component extending and contracting along the longitudinal direction of the diaper 1, and even if the linear rubber 4F3 extends obliquely to the longitudinal direction, the linear rubber 4F3 has a component in which the contracting direction is the longitudinal direction.

The non-adhesive region 15 is formed on the side of the front region 1F including the extension region of the linear rubber 4F3, and has a component that stretches and contracts in the longitudinal direction of the diaper 1 on the outer side in the width direction of the crossing portion of the linear rubber 4F 3. Therefore, the outer body (the cover sheet 4 and the inner cover sheet 5) in the non-adhesive region 15 is pulled toward the front body region 1F by the linear rubber 4F 3. The diaper 1 can pull the outer body forward by the linear rubber 4F3, thereby pulling the absorber 8 on the rear side of the non-adhesive region 15 forward, and in the wearing state, tilting the absorber 8 downward (on the non-skin surface side) on the rear side in the front-rear direction. In the diaper 1, the absorber 8 is inclined downward at a position rearward of the longitudinal center portion, so that the absorber 8 can be relatively separated from the skin of the wearer in the anus-corresponding region 40 located rearward of the center portion. Thus, the diaper 1 can form a space between the wearer's skin in the anus-corresponding region 40.

< embodiment 2>

Next, a diaper 1 according to embodiment 2 will be described. Fig. 5 is an example of an exploded perspective view of the diaper according to embodiment 2. The same reference numerals are given to the same components as those of embodiment 1, and the description thereof is omitted.

In the diaper 1 of the present embodiment, a linear rubber 4F7 is provided between the back sheet 6 and the core wrap sheet 7 at the widthwise central portion in an elongated state in the longitudinal direction from the front body region 1F to the crotch region 1B. The linear rubber 4F7 is bonded to the back sheet 6, and is bonded to the inner cover sheet 5 and the cover sheet 4 via the back sheet 6. The linear rubber 4F7 exerts a force that contracts the inner cover sheet 5 and the cover sheet 4 in the longitudinal direction. The region where the linear rubber 4F7 is provided is preferably a region where the absorber 8 and the backsheet 6 are not bonded. The linear rubber 4F7 may be provided between the cover sheet 4 and the inner cover sheet 5.

Further, a linear rubber cover piece 13 is disposed on the skin surface side of the linear rubber 4F7. The linear rubber cover sheet 13 is adhered to the back sheet 6 while covering the linear rubber 4F7 from the skin surface side. The linear rubber cover sheet 13 is disposed between the linear rubber 4F7 and the absorber 8. The linear rubber cover sheet 13 is not integrally bonded to the core wrap sheet 7 of the absorber 8. The linear rubber cover sheet 13 is disposed between the absorber 8 and the backsheet 6, is bonded to the backsheet 6, and is partially non-bonded to the core wrap sheet 7 of the absorber 8. This can prevent the elastic force (contraction force) of the linear rubber 4F7 from acting excessively on the absorber 8, and can prevent the absorber 8 from being excessively deformed. In addition, when a band-shaped stretchable member is used instead of the linear rubber 4F7, the stretchable member and the core wrap 7 may be made non-adhesive at a part thereof so that the linear rubber cover sheet 13 is not provided. In the present embodiment, the linear rubber cover sheet 13 is formed to have the same length as the back sheet 6. The linear rubber cover sheet 13 may be formed to have a length corresponding to the extension region of the linear rubber 4F7, or may be formed to be longer than the extension region of the linear rubber 4F7 and shorter than the back sheet 6. Further, a part of the linear rubber cover sheet 13 is not bonded to the absorber 8. The linear rubber cover sheet 13 may be non-bonded to the absorber 8 as a whole.

Fig. 6A and 6B are examples of diagrams schematically showing a state in which the diaper 1 according to the embodiment is developed and extended. Fig. 6A schematically shows an internal configuration in the case of the diaper 1 in an unfolded and elongated state as viewed from the left side. Fig. 6B is a plan view of the diaper 1 in an unfolded and extended state.

As shown in fig. 6A and 6B, the linear rubber 4F7 is provided in a widthwise central portion between the backsheet 6 and the core wrap 7 in a state of extending in the longitudinal direction from the front body region 1F to the crotch region 1B. The absorber 8 is extruded in a linear shape so as to surround the linear rubber 4F7, and is shown as a line 14 in fig. 6A and 6B. The wire 14 is disposed at the end portion of the rear side in the width direction. The wire 14 is bent outward in the width direction at the end portion on the precursor region 1F side. Such pressing of the absorber 8 is achieved by embossing with a roller, for example.

In the diaper 1 of the present embodiment, as shown in fig. 6A and 6B, the linear rubber 4F7 is provided between the backsheet 6 and the core wrap sheet 7 (a part of the absorber 8) in a state of extending in the longitudinal direction from the front body region 1F to the crotch region 1B. Therefore, the cover sheet 4 and the inner cover sheet 5 shrink in the longitudinal direction. Further, since the thread 14 as a pressing region is provided in the absorber 8, the absorber 8 is guided to protrude toward the skin surface side by bending the thread 14. Therefore, the absorber 8 can reliably abut against the urethral orifice. Therefore, urine excreted from the wearer can be prevented from leaking out of the diaper 1. The same effect is also achieved when the linear rubber 4F7 is provided in the absorber 8.

The portion where the linear rubber 4F7 is provided includes a non-bonded region 15 where the absorber 8 and the inner cover sheet 5 are not bonded. Therefore, by abutting the absorber 8 in the direction of the urethral opening, the non-adhesive region 15 between the absorber 8 and the inner cover sheet 5 expands in the thickness direction. By expanding the non-adhesive region 15, the air permeability of the non-adhesive region 15 can be further improved.

Further, by bonding the linear rubber 4F7 to the back sheet 6, a contraction force that contracts in the longitudinal direction is transmitted to the inner cover sheet 5 via the back sheet 6. The holes provided in the back sheet 6 bonded to the inner cover sheet 5 are enlarged in the longitudinal direction. Thus, the ventilation of the diaper 1 is improved. Further, since the hole is provided in the region overlapping the absorber 8 in the thickness direction, the hole is provided symmetrically in the center in the width direction. Accordingly, the holes provided in the back sheet 6 can be uniformly expanded in the longitudinal direction in the width direction. Therefore, the diaper 1 can uniformly improve the ventilation. The same effect is also achieved when the linear rubber 4F7 is provided in the absorber 8.

In addition, according to the diaper 1 described above, the line 14 extends in the width direction in the region corresponding to the anus in the crotch region 1B. Since the rigidity of the wire 14 is higher than that of the other region, the absorber 8 can be suppressed from being deformed in the width direction. Therefore, the diaper 1 can prevent the absorber 8 from getting caught in the buttocks of the wearer, and can suppress the decrease in wearing feeling.

The arrangement of the linear rubber 4F7 is not limited to the above embodiment, and may be provided so that the fine ventilation holes provided in the back sheet 6 and the non-adhesive region 15 between the absorber 8 and the inner cover sheet 5 can be enlarged. For example, the linear rubber 4F7 may be disposed at the end in the width direction symmetrically with respect to the center line disposed at the center in the width direction and extending in the length direction.

The linear rubber 4F7 may have a color (for example, a color such as red or blue) different from that of the outer body and the absorber 8, and in this case, the outer side of the outer body, that is, the outer side of the cover sheet 4 can be visually recognized. The diaper 1 of the present embodiment can visually recognize the intersection point of the linear rubber 4F7 and the linear rubber 4F3 from the outside on the abdomen side and cannot visually recognize the intersection point on the back side, and therefore can more easily distinguish the front and back. The linear rubber 4F7 may be bonded to the non-skin surface side of the absorber 8.

In the present embodiment, the wire 14 overlaps the linear rubber 4F3 when viewed in the thickness direction. Even when the absorber 8 is bent in a W shape along the line 14, the non-adhesive region 15 is provided, and therefore, the linear rubber 4F3 is not visually recognized from the outside due to the outer body being caught in the irregularities generated in the absorber 8.

When viewed in the thickness direction, a part of the abdominal line 14 is provided so as to overlap with the non-adhesive region 15. By providing the non-adhesive region 15, it is difficult to see the line 14 on the skin surface side of the non-adhesive region or the line 14 is not visible when the diaper is visually recognized from the outside of the exterior body. On the other hand, since the non-adhesive region 15 is not provided on the back side, the line 14 on the back side is easily visible or the line 14 can be clearly seen when the diaper is visually recognized from the outside of the exterior body. Thus, the diaper 1 can be easily distinguished between front and rear.

< embodiment 3>

Next, a diaper 1 according to embodiment 3 will be described. Fig. 7 is an example of an exploded perspective view of the diaper according to embodiment 3. The same reference numerals are given to the same components as those of embodiment 1, and the description thereof is omitted.

The absorber 8 has an absorbent core 8c composed of a plurality of pads and a core wrap sheet 7 wrapping the absorbent core 8c. In the present embodiment, as shown in fig. 7, the absorbent core 8c has an upper absorbent pad 8a and a lower absorbent pad 8b. The upper layer absorbent pad 8a has a substantially hourglass shape with narrowed portions, and the lower layer absorbent pad 8b has a rectangular shape. The width of the lower absorbent pad 8b is substantially the same as the width of the narrowed portion of the upper absorbent pad 8 a. In the present embodiment, the upper absorbent pad 8a is substantially hourglass-shaped with a narrowed portion near the central portion. Thus, the absorbent core 8c can be formed by stacking 2 layers of absorbent pads.

In the above-described embodiments, the effect of preventing leakage of urine excreted from the wearer has been described, but leakage of water, feces, or sweat contained in a water sample excreted from the wearer can be similarly prevented.

In the present embodiment, the outer body on the front body region side and the outer body on the rear body region side are integrally formed, but the outer body on the front body region side and the outer body on the rear body region side may be separately provided.

The embodiments and modifications disclosed above can be combined separately.

Claims

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 includes:

an absorber (8), wherein the absorber (8) is arranged at a position including a crotch part and can absorb discharged liquid of a wearer;

an outer body having a waist opening through which the abdomen of the wearer can be inserted and two leg opening portions through which the legs of the wearer can be inserted, and disposed on the non-skin side of the wearer with respect to the absorber (8);

A 1 st stretchable member provided on the outer body in an extended state, the 1 st stretchable member extending along the leg hole opening on the abdomen side of the wearer, the 1 st stretchable member being provided so as to traverse the crotch portion and extend along the leg hole opening on the other side; and

and a pair of right and left 2 nd stretchable members provided in the outer body in an extended state on the back side of the wearer, wherein the inner ends in the width direction of the pair of right and left 2 nd stretchable members are disposed in the vicinity of a region overlapping the absorber when viewed in the thickness direction, and the pair of right and left 2 nd stretchable members pull the absorber to the outer side in the width direction.

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

the inner end portion of the 2 nd stretchable member in the width direction overlaps the absorber (8) when viewed in the thickness direction, and the stretchable direction has a component in the width direction.

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

a non-adhesive region where the absorber (8) and the outer body are non-adhesive is provided in the overlapping region of the crotch portion where the 1 st stretchable member and the absorber (8) overlap.

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

the absorbent article further includes a 3 rd stretchable member stretched in the width direction so as to be provided to the outer body in an elongated state along the waist opening,

in a state where the waist opening is extended, the 1 st stretchable member has a contraction force that contracts a part or all of the outer body on the outer side in the width direction than the overlap region to a position on the inner side in the width direction than the overlap region.

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

the 2 nd stretchable member extends along the leg hole opening portion to a position outside the absorber in the width direction on the back side of the wearer.

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

the range in which the front outer body overlaps the leg hole opening is smaller than the range in which the rear outer body overlaps the leg hole opening, among the equal distances with respect to the center in the longitudinal direction.

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

Folds extending in the width direction are formed in the front and rear of the region of the outer body corresponding to the anus of the wearer.

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

the folds are formed between inner side ends of the 2 nd expansion member in the width direction on the left and right sides.

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

between the front and rear folds formed in the region corresponding to the anus of the wearer, other folds extending in the width direction are formed in the outer cover.

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

the 1 st stretchable member has a component having a stretchable direction that is the longitudinal direction at a position outside the absorber (8) in the width direction.