CN219184557U - Absorbent article - Google Patents

Abstract

The absorbent article is provided with: an absorber (8) provided at a position including the crotch region (1B); a front body outer package; a rear body outer body; side seal parts (3 SL, 3 SR) which join the ends of the width direction end parts of the front body outer body and the back body outer body, and form a waist opening part and left and right leg surrounding opening parts; and a 1 st stretchable member that is stretched in the width direction by being adhered to the front body outer body and the rear body outer body in an elongated state along the waist opening, wherein at least one of the longitudinal ends of the side seal portions (3 SL, 3 SR) is positioned on the front body region (1F) side in a state in which the waist opening is stretched in the width direction to a maximum length of 10 seconds and then the external force is removed for 1 minute.

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 application laid-open publication 2019-115459 discloses a pants-type disposable diaper.

Disclosure of Invention

Consider the following: in the case of a pants-type disposable diaper, the side seal is peeled off when the diaper is detached from the wearer or when the diaper is detached from the wearer himself/herself, and the diaper is removed from the crotch of the wearer. In general, the side seal portion is pulled from the abdomen side of the diaper in a state where the abdomen side is directed upward and peeled off. However, there is no specific proposal for a technique for realizing a side seal portion that is easily pulled from the abdominal side and peeled off.

The purpose of the present utility model is to provide an absorbent article having a side seal that is easily pulled from the abdominal side and peeled off.

In the present utility model, at least one of the longitudinal ends of the side seal is located on the front body region side.

Specifically, in one aspect of the present utility model, an absorbent article having a length along a longitudinal direction and a width along a width direction orthogonal to the longitudinal direction, and having a front body region located on a wearer's abdomen side, a crotch region located in a crotch portion, and a back body region located on a back side in this order in the longitudinal direction, the absorbent article comprising: an absorber which is provided at a position including the crotch region and is capable of absorbing discharged liquid of the wearer; a precursor outer body forming an outer surface of the precursor zone; a back body outer covering forming an outer surface of the back body region; a side seal portion that joins ends of the front body outer body and the rear body outer body in a width direction end portion, the side seal portion forming a waist opening portion through which a abdomen of the wearer can be inserted and left and right leg opening portions through which legs of the wearer can be inserted; and a 1 st stretchable member that is bonded to the front body outer body and the rear body outer body in an elongated state along the waist opening portion and stretches in the width direction, wherein at least one of the longitudinal ends of the side seal portion is located on the front body region side in a state in which the waist opening portion is stretched in the width direction to a maximum length of 10 seconds and then an external force is removed for 1 minute.

In the absorbent article according to the above aspect, the width of the front body outer body in the width direction may be shorter than the width of the rear body outer body in the width direction.

In the absorbent article according to the above aspect, the width of the front body outer package and the width of the rear body outer package in the width direction may be the same, and the absorbent article may further include: a 2 nd stretchable member that is provided on the front body region side so as to extend along the leg hole opening on one side, and so as to traverse the crotch region and extend along the leg hole opening on the other side, and is bonded to the front body outer body in an extended state; and a pair of 3 rd stretchable members that are bonded to the rear body outer body in an elongated state along the left and right leg hole openings on the rear body region side, wherein the 2 nd stretchable member has a higher draft ratio (draft ratio) than the 3 rd stretchable member.

The absorbent article according to the above aspect may further include: a 2 nd stretchable member that is provided on the front body region side so as to extend along the leg hole opening on one side, and so as to traverse the crotch region and extend along the leg hole opening on the other side, and is bonded to the front body outer body in an extended state; and a pair of 3 rd stretchable members that are bonded to the rear body outer body in an elongated state along the left and right leg hole openings, respectively, on the rear body region side, the 3 rd stretchable members having no contraction force at least a part of a region overlapping the absorber when viewed in the thickness direction.

In the absorbent article according to the above aspect, the 3 rd stretchable member may extend to a position overlapping the absorbent body when viewed in the thickness direction.

In the absorbent article according to the above aspect, the width of the front body outer package and the width of the rear body outer package in the width direction may be the same, and the absorbent article may further include: a 2 nd stretchable member that is provided on the front body region side so as to extend along the leg hole opening on one side, and so as to traverse the crotch region and extend along the leg hole opening on the other side, and is bonded to the front body outer body in an extended state; and a pair of 3 rd stretchable members that are bonded to the rear body outer body in an elongated state along the left and right leg hole openings on the rear body region side, wherein the width-directional component of the 2 nd stretchable member is larger than the width-directional component of the 3 rd stretchable member.

In the absorbent article according to the above aspect, the crotch region side end portion of the side seal portion may be disposed on the front body region side with respect to the rear body region side.

The absorbent article according to the above aspect may further include: a 2 nd stretchable member that is provided on the front body region side along the leg hole opening on one side, is provided so as to traverse the crotch region in the width direction, and extends along the leg hole opening on the other side, and is bonded to the front body outer body in an extended state; a non-adhesive region in which the absorber and the front body outer body are non-adhesive in an overlapping region of the crotch portion where the 2 nd stretchable member and the absorber overlap; and an adhesive portion that is disposed closer to the rear body region than the non-adhesive region and adheres the front body outer body to the inner body including the absorber, wherein the adhesive portion has a plurality of linear adhesive portions that extend in the width direction and are disposed farther to the inside in the width direction than the width direction end portions of the inner body, and are disposed apart from each other in the longitudinal direction.

According to the present utility model, an absorbent article having a side seal portion that is easily pulled from the abdominal side and peeled off can be realized.

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 the diaper of example 1 of embodiment 1.

Fig. 5 is an example of an developed view of the diaper of example 5 of embodiment 1.

Fig. 6 is an example of an exploded perspective view of the diaper according to embodiment 2.

Fig. 7A and 7B are an example of an developed view of the diaper according to embodiment 2.

Fig. 8 is an example of an exploded perspective view of the diaper according to embodiment 3.

Detailed Description

< embodiment 1>

Hereinafter, a diaper according to embodiment 1 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 herein refers to a direction that coincides with the front, rear, left, and right of the wearer when the diaper 1 is worn on the wearer. For example, the term "right-left direction" as used herein refers to a direction that 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 a waist opening through which the abdomen of the wearer can be inserted and a pair of left and right leg opening portions 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" described in the present application is not limited to adult pants-type disposable diapers. 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, a side seal portion 3SL for joining the left edge of the front body region 1F and the left edge of the rear body region 1R to each other and a side seal portion 3SR for joining the right edge of the front body region 1F and the right edge of the rear body region 1R to each other are provided. The side seal portions 3SL and 3SR form a trunk opening 2T (an example of a "waistline opening" in the present disclosure) in the diaper 1 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. It can be said that the side seal portions 3SL and 3SR form left and right leg openings 2L and 2R in the diaper 1. 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 "left and right leg hole openings" in 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. 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 other various 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 8 c. 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. In this way, 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 left edge of the rear body region 1R are joined to each other to form the side seal portion 3SL (see fig. 1), and the edge 4F5 of the cover sheet 4, which is the right edge of the front body region 1F, and the edge 4R5 of the right edge of the rear body region 1R are joined to each other to form the side seal portion 3SR (see fig. 1), the side sheets 10L, 10R are pulled in the longitudinal direction by the contraction force of the linear rubbers 10L1, 10R1 and rise from the top sheet 9 along the folding lines 10L2, 10R2, respectively, in the finished state of the diaper 1 as 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 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 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 "2 nd 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 left-right 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 "3 rd stretchable member" of the present disclosure) forming the leg gathers 3LR is provided along the edges of the rear body region 1R side of the right and left lower limb openings 2R and 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 to each other from the front region 1F to the rear region 1R via the back sheet 6 by an adhesive. 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, 4F2 and the linear rubbers 4R1, 4R2 are examples of the 1 st expansion and contraction member in the present disclosure.

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 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.

The state in which sheets overlap in the present application 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.

Here, the diaper 1 of the present embodiment is a pants-type disposable diaper. Consider the following: the pants-type diaper 1 is removed from the crotch of the wearer by peeling the side seal portions 3SL and 3SR shown in fig. 1 when the diaper is detached from the wearer or when the diaper is detached from the wearer. In general, the following is envisaged: the side seal portions 3SL, 3SR are pulled from the abdomen side (front body region side) in a state where the abdomen side of the diaper 1 faces upward and peeled off. Therefore, in the diaper 1 of the present embodiment, at least one of the longitudinal ends of the side seal portions 3SL, 3SR is located on the front body region 1F side in a stable state. The steady state is, for example, a state in which the trunk opening 2T is stretched to the maximum length in the width direction for 10 seconds and then the external force is removed for 1 minute. The steady state can be regarded as the state of the diaper 1 in the worn state. The stable state may be a state in which the diaper 1 is folded at the folding line in the width direction of the crotch region 1B (a state in which it is normally stored in a package).

In the diaper 1 of the present embodiment, since the side seal portions 3SL and 3SR are located on the front body region 1F side, when the side seal portions 3SL and 3SR are peeled off to the abdomen side and the back side, the starting points of the peeled side seal portions 3SL and 3SR are easily visually checked, and the outer body on the back side and the abdomen side of the starting points can be pinched in the worn state, pulled from the abdomen side, and peeled off. As described above, the diaper 1 of the present embodiment can include the side seal portions 3SL and 3SR that are easily pulled from the abdomen side and peeled off.

Example 1 ]

Next, example 1 of the present embodiment will be described. Fig. 4 is a plan view schematically showing the diaper 1 in a state in which the diaper 1 of the present embodiment is developed and extended. In the present embodiment, in order to dispose the side seal portions 3SL, 3SR on the front body region 1F side in the steady state, the width of the exterior body on the front body region 1F side is formed to be shorter than the width of the exterior body on the rear body region 1R side in the width direction. Thus, when the side seals 3SL, 3SR are formed, the side seals 3SL, 3SR can be arranged on the front region 1F side.

Example 2 ]

Next, example 2 of the present embodiment will be described. In the present embodiment, the side seal portions 3SL, 3SR are arranged on the precursor region 1F side by making the draft ratio of the linear rubber 4F3 higher than that of the linear rubber 4R 3. The draft ratio (%) of the linear rubber is a value obtained by dividing the length (cut length) of the linear rubber when the linear rubber is incorporated into a diaper by the natural length of the linear rubber and expressing the ratio as a percentage. The linear rubber is assembled in the diaper 1 in an extended state to exert a contraction force. Therefore, the draft ratio becomes a value of more than 100%. In this embodiment, the width of the outer body on the front body region 1F side and the width of the outer body on the rear body region 1R side in the width direction of the diaper 1 are substantially the same. However, in other embodiments, the width of the outer body on the front body region 1F side and the width of the outer body on the rear body region 1R side in the width direction of the diaper 1 may be substantially different.

The linear rubber can increase the elastic force by increasing the draft ratio. By making the elastic force of the linear rubber 4F3 disposed on the front body region 1F side larger than the elastic force of the linear rubber 4R3 disposed on the rear body region 1R side, the side seal portions 3SL, 3SR can be pulled toward the front body region 1F side, and the side seal portions 3SL, 3SR can be disposed on the front body region 1F side.

Example 3 ]

Next, example 3 of the present embodiment will be described. In the present embodiment, the linear rubber 4F3 is not cut at the crotch region 1B but is provided so that the linear rubber 4F3 crosses the crotch region 1B in the width direction, and the linear rubber 4R3 is cut at the center of the crotch region 1B so that the linear rubber 4R3 does not have a contraction force in a region overlapping the absorber 8 when viewed in the thickness direction, whereby the outer body can be contracted toward the width direction center side in the front body region 1F side than the rear body region 1R side, and the crotch side ends in the longitudinal direction of the side seal portions 3SL, 3SR can be arranged on the front body region 1F side. In this embodiment, the width of the outer body on the front body region 1F side and the width of the outer body on the rear body region 1R side in the width direction of the diaper 1 are substantially the same. However, in other embodiments, the width of the outer body on the front body region 1F side and the width of the outer body on the rear body region 1R side in the width direction of the diaper 1 may be substantially different.

The linear rubber 4R3 may be arranged so that the left and right linear rubbers 4R3 do not have a contraction force in at least a part of the region overlapping the absorber 8 when viewed in the thickness direction. For example, the linear rubber 4R3 intermittently has a contraction force in a region overlapping the absorber 8, or does not have a contraction force in the widthwise central portion, but may have a contraction force outside the central portion. For example, by intermittently disposing the linear rubber 4R3 in a region overlapping the absorber 8, the contraction force can be intermittently provided in the region.

Here, it was confirmed that: the side seal portions 3SL, 3SR can be arranged on the precursor region 1F side by adjusting the length between the left and right linear rubbers 4R3 (hereinafter referred to as "width between the linear rubbers 4R 3"). The conditions of the linear rubbers 4F3, 4R3 are as follows. The width between the linear rubbers 4R3 is the width between the left and right linear rubbers 4R3 at the portion where the linear rubbers 4R3 are not present.

(1) The number of the linear rubbers 4F3 and 4R3 is 2, 3, 4 and 5.

(2) The thickness of the linear rubbers 4F3, 4R3 is 620dtex, 780dtex, 940dtex, 1240dtex.

(3) The draft ratios (%) of the linear rubbers 4F3 and 4R3 were set to 160%, 180%, 200%, 220%, 240%, 260%. The draft ratio (%) of the linear rubber is a value expressed as a percentage by dividing the length (cut length) of the linear rubber when the linear rubber is assembled in a diaper by the natural length of the linear rubber. In order to exert the contraction force, the linear rubbers 4F3, 4R3 are assembled in the diaper 1 in an extended state. Therefore, the draft ratio becomes a value of more than 100%.

The results of confirming all combinations of the conditions (1) to (3) are shown in table 1 below. In all conditions, the width of the absorbent body 8 between the left and right linear rubbers 4R3 was set to 180mm for the width of the core wrap sheet 7, and 100mm for the width of the absorbent core 8 c.

TABLE 1

Width (mm) between linear rubbers 4R3	Position of side seal
		200	Ventral side
180	Ventral side
		140	Ventral side
100	Ventral side
		80	Ventral side
60	Ventral side
		50	Ventral side
40	Ventral side
		30	Not the ventral side
20	Not the ventral side

As shown in table 1, the positions of the side seal portions 3SL and 3SR can be set to the abdomen side by setting the width between the linear rubbers 4R3 to 40mm to 200 mm. Further, in the case where the width between the linear rubbers 4R3 is narrow, the linear rubbers 4R3 have a contractive force at least a part of the region overlapping the absorber 8 when viewed in the thickness direction. The inner side in the width direction of the linear rubber 4R3 may extend to a position overlapping the absorbent core 8c when viewed in the thickness direction.

Example 4 ]

Next, example 4 of the present embodiment will be described. In the present embodiment, the width direction component of the diaper 1 of the linear rubber 4F3 is larger than the width direction component of the diaper 1 of the linear rubber 4R 3. As a result, the outer body can be contracted toward the widthwise center side of the front body region 1F side than the rear body region 1R side, and the crotch side end portions in the longitudinal direction of the side seal portions 3SL, 3SR can be arranged on the front body region 1F side.

Further, it is preferable that the lower end (crotch side) of the both longitudinal ends of the side seal portions 3SL, 3SR is disposed closer to the front region 1F than to the rear region 1R. This is because, when the wearer peels the side seal portions 3SL and 3SR by himself/herself, the lower end portions of the side seal portions 3SL and 3SR are pinched, and the arms are moved from the extended state to the bent state, so that the side seal portions 3SL and 3SR are peeled from the bottom to the top. With this configuration, even the elderly (elderly) who are caregivers (caregivers), the side seal portions 3SL, 3SR are easily peeled off. In contrast, when the upper end portions of the side seal portions 3SL, 3SR are arranged on the front body region 1F side than the rear body region 1R side, the upper end portions of the side seal portions 3SL, 3SR are easier to hold than the lower end portions when the wearer peels the side seal portions 3SL, 3SR themselves, but when the upper end portions of the side seal portions 3SL, 3SR are pinched, it is necessary to operate the arms from the bent state to the stretched state when peeling the side seal portions 3SL, 3SR, and peeling of the side seal portions 3SL, 3SR is difficult.

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

Example 5 ]

Next, example 5 of the present embodiment will be described. Fig. 5 is a plan view of the diaper 1 in an unfolded and extended state. The same reference numerals are given to the same components as those of embodiment 1, and the description thereof is omitted.

The inner cover sheet 5 and the absorber 8 are non-bonded (non-bonded region 15) in the region where the linear rubber 4F3 laterally crosses in the crotch region 1B on the front body side. 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. The non-adhesive region 15 is provided over the entire region in the width direction of the inner body including the back sheet 6.

Fig. 5 illustrates an adhesive portion where the inner body and the outer body are adhered. The diaper 1 includes a 1 st adhesive portion 30, a 2 nd adhesive portion 31 (an example of the "adhesive portion" of the present disclosure), and a 3 rd adhesive portion 32 as adhesive portions for adhering the inner body to the outer body.

The 1 st adhesive part 30 has a plurality of linear adhesive parts 30A, and the plurality of linear adhesive parts 30A are arranged on the front side of the non-adhesive region 15, extend in the width direction of the diaper 1, and are provided so as to be separated from each other in the longitudinal direction of the diaper 1. The plurality of linear adhesive portions 30A are formed by applying a hot melt adhesive between the inner cover sheet 5 and the back sheet 6, which is between the exterior body and the interior body. The plurality of linear adhesive portions 30A are formed to have a width slightly smaller than the entire width of the inner body.

The 2 nd adhesive portion 31 has a plurality of linear adhesive portions 31A, and the plurality of linear adhesive portions 31A are disposed at a position on the rear side (crotch side) of the non-adhesive region 15, extend in the width direction of the diaper 1, and are provided so as to be separated from each other in the longitudinal direction of the diaper 1. The 2 nd adhesive portion 31 is an adhesive portion for adhering the outer body and the inner body in the crotch region 1B. The plurality of linear adhesive portions 31A are formed by applying a hot melt adhesive between the inner cover sheet 5 and the back sheet 6, which is between the exterior body and the interior body. The plurality of linear adhesive portions 31A are formed to have a width smaller than the entire width of the inner body, and non-adhesive regions 16L and 16R where the inner body and the outer body are non-adhesive are provided on the outer sides of the linear adhesive portions 31A in the width direction.

The 3 rd adhesive portion 32 has a plurality of linear adhesive portions 32A, and the plurality of linear adhesive portions 32A are disposed at the rear side of the 2 nd adhesive portion 31, extend in the width direction of the diaper 1, and are provided so as to be separated from each other in the longitudinal direction of the diaper 1. The plurality of linear adhesive portions 32A are formed by applying a hot melt adhesive between the inner cover sheet 5 and the back sheet 6, which is between the exterior body and the interior body. The plurality of linear adhesive portions 32A are formed to have a width slightly smaller than the entire width of the inner body.

The diaper 1 of the present embodiment includes the non-adhesive region 15 and the 2 nd adhesive portion 31 provided with the non-adhesive regions 16L and 16R on both sides, whereby the outer body is contracted inward in the width direction by the linear rubber 4F3 at the right and left crossing portions, and the outer body is folded toward the non-skin surface side (downward) at the boundary between the non-adhesive region 15 and the linear adhesive portion 31A. Further, since the 2 nd adhesive portion 31 is provided on the crotch side of the non-adhesive region 15, the outer body on the crotch side of the non-adhesive region 15 can be prevented from being excessively contracted, and the outer body in the non-adhesive regions 16L, 16R can be contracted inward in the width direction by the contraction force of the linear rubber 4F 3. Therefore, the diaper 1 can pull the side seal portions 3SL, 3SR (see fig. 1) formed at the widthwise ends of the outer body inward in the width direction on the front body region 1F side, and the longitudinal crotch side ends of the side seal portions 3SL, 3SR can be disposed on the front body region 1F side.

Further, the outer body in the non-adhesive region 15 is lifted toward the front body region 1F by the linear rubber 4F3, and the linear rubber 4F3 is contracted toward the inside in the width direction of the diaper 1, whereby the outer body ( regions 55L, 55R shown in fig. 5) on the outside in the width direction of the non-adhesive region 15 than the absorber 8 falls within a range overlapping the absorber 8, or the amount of extension of the outer body toward the outside in the width direction is smaller than the amount of extension of the absorber 8 toward the outside in the width direction at least as compared with the case where the linear rubber 4F3 is not provided. For example, if the width of the absorber 8 in the non-adhesive region 15 lifted up toward the front body region 1F by the linear rubber 4F3 is wider than the position before being lifted up, the outer body more reliably and easily falls within the width of the absorber 8. Thus, the left and right leg openings 2L, 2R are less likely to be blocked by the outer body when the diaper 1 is worn. Accordingly, when the wearer wears the diaper 1 by himself/herself, the left and right lower limb openings 2L and 2R are easily seen from the trunk opening 2T, and when the wearer wears the diaper 1 by a care giver (nursing staff) or the like, the left and right lower limb openings 2L and 2R are easily found from the outside, so that the diaper 1 is easy to wear. In addition, when the wearer puts his or her feet into the left and right lower limb openings 2L, 2R, the thumb is less likely to be caught by the outer body.

Here, the arrangement relationship between the non-adhesive region 15 and the 2 nd adhesive portion 31 will be described. The plurality of linear adhesive portions 31A are arranged on the crotch side of the non-adhesive region 15. On the non-skin surface side of the non-adhesive region 15, the linear rubber 4F3 contracts, and pulls the outer body inward in the width direction. On the crotch side of the non-adhesive region 15, the outer body and the inner body including the back sheet 6 and the absorber 8 are adhered to each other with a predetermined width from the widthwise center of the back sheet 6 by the linear adhesive portion 31A, and therefore the outer body is folded toward the non-skin surface side with the linear adhesive portion 31A on the forefront side as a starting point. When the diaper 1 in this state is worn, the width-direction end portion of the crotch region 1B is positioned along the inner side of the thighs of the wearer. The linear adhesive portions 31A of the diaper 1 are separated from each other in the longitudinal direction in the crotch region 1B, whereby the skin feel can be softened, and the widthwise end portions of the crotch region 1B are brought into a state of being along the inner sides of the thighs, so that biting of the outer body into the skin can be suppressed. This makes it possible to suppress the decrease in the wearing sensation in the crotch region 1B of the diaper 1. In the process of manufacturing the diaper 1, the outer body is cut at the widthwise ends of the non-bonded regions 16L and 16R, whereby the outer body is fluffed and fluffed. Thus, the diaper 1 can soften the skin feel of the outer body when the width-direction end portion of the crotch region 1B is brought into a state of being along the inner side of the thighs.

< embodiment 2>

Next, a diaper 1 according to embodiment 2 will be described. Fig. 6 is an example of an exploded perspective view of the diaper 1 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 inner cover sheet 5 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, and is bonded to the backsheet 6, and a part thereof is 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 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. 7A and 7B are examples of diagrams schematically showing a state in which the diaper 1 according to embodiment 2 is developed and extended. Fig. 7A 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. 7B is a plan view of the diaper 1 in an unfolded and extended state.

As shown in fig. 7A and 7B, the linear rubber 4F7 is provided in a widthwise central portion between the backsheet 6 and the core wrap sheet 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. 7B. 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. 7A, a 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.

< embodiment 3>

Next, a diaper 1 according to embodiment 3 will be described. Fig. 8 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.

In the present embodiment, the absorber 8 has a plurality of pads. The absorbent body 8 has an absorbent core 8c composed of a plurality of pads and a core wrap sheet 7 wrapped around the absorbent core 8c. In the present embodiment, as shown in fig. 8, 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. Thus, the absorbent core 8c can be formed by stacking 2 layers of absorbent pads.

The embodiments and modifications disclosed above can be combined separately.

Claims (8)

1. An absorbent article having a length along a longitudinal direction and a width along a width direction orthogonal to the longitudinal direction, and comprising a front body region (1F) located on the abdomen side of a wearer in a wearing state, a crotch region (1B) located in the crotch portion, and a rear body region (1R) located on the back side in this order along the longitudinal direction,

The absorbent article includes:

an absorber (8), wherein the absorber (8) is arranged at a position including the crotch region (1B) and can absorb the discharged liquid of the wearer;

a precursor outer package forming an outer surface of the precursor zone (1F);

a rear body outer body forming an outer surface of the rear body region (1R);

side seal portions (3 SL, 3 SR), the side seal portions (3 SL, 3 SR) join end portions of width direction end portions of the front body outer body and the rear body outer body to each other, the side seal portions (3 SL, 3 SR) form a waist opening portion through which a abdomen of the wearer can be inserted and left and right leg opening portions through which legs of the wearer can be inserted; and

a 1 st stretchable member that is bonded to the front body outer body and the rear body outer body in an elongated state along the waist opening portion and stretches in the width direction,

at least one of the longitudinal ends of the side seal sections (3 SL, 3 SR) is positioned on the front body region (1F) side in a state in which the waist opening section is stretched to the maximum length in the width direction for 10 seconds and then the external force is removed for 1 minute.

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

the width of the front body outer case in the width direction is shorter than the width of the rear body outer case in the width direction.

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

the width of the front body outer package and the width of the rear body outer package in the width direction are the same,

the absorbent article further comprises:

a 2 nd stretchable member that is provided on the front body region (1F) side so as to extend along the leg hole opening on one side, to traverse the crotch region (1B), and to extend along the leg hole opening on the other side, and that is bonded to the front body outer body in an extended state; and

a pair of 3 rd stretchable members bonded to the rear body outer body in an extended state along the left and right leg hole openings on the rear body region (1R) side,

the 2 nd expansion member has a higher draft ratio than the 3 rd expansion member.

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

the absorbent article further comprises:

a 2 nd stretchable member that is provided on the front body region (1F) side so as to extend along the leg hole opening on one side, to traverse the crotch region (1B), and to extend along the leg hole opening on the other side, and that is bonded to the front body outer body in an extended state; and

A pair of 3 rd stretchable members bonded to the rear body outer body in an extended state along the left and right leg hole openings on the rear body region (1R) side,

the 3 rd stretchable member has no contractive force at least a part of a region overlapping the absorber (8) when viewed in the thickness direction.

5. The absorbent article as in claim 4, wherein,

the inner side of the 3 rd stretchable member in the width direction extends to a position overlapping the absorber when viewed in the thickness direction.

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

the width of the front body outer package and the width of the rear body outer package in the width direction are the same,

the absorbent article further comprises:

a 2 nd stretchable member that is provided on the front body region (1F) side so as to extend along the leg hole opening on one side, to traverse the crotch region (1B), and to extend along the leg hole opening on the other side, and that is bonded to the front body outer body in an extended state; and

a pair of 3 rd stretchable members that are bonded to the rear body outer body in an elongated state along the left and right leg hole openings on the rear body region (1R) side,

The width direction component of the 2 nd expansion member is larger than the width direction component of the 3 rd expansion member.

7. The absorbent article as in any of claims 1-6, wherein,

the end of the side seal sections (3 SL, 3 SR) on the crotch region (1B) side is arranged on the front region (1F) side compared to the rear region (1R) side.

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

the absorbent article further comprises:

a 2 nd stretchable member that is provided on the front body region (1F) side along the leg hole opening on one side, is provided so as to traverse the crotch region (1B) in the width direction, and extends along the leg hole opening on the other side, and is bonded to the front body outer body in an extended state;

non-bonded regions (15, 16L, 16R), wherein the non-bonded regions (15, 16L, 16R) are regions in which the absorber (8) and the precursor outer body are non-bonded in the overlapping region of the crotch portion where the 2 nd stretchable member and the absorber (8) overlap; and

an adhesive part which is arranged closer to the rear body region (1R) than the non-adhesive regions (15, 16L, 16R) and adheres the front body outer body and the inner body containing the absorber (8),

The adhesive portion has a plurality of linear adhesive portions that extend in the width direction, are provided at positions inward in the width direction than the width direction end portions of the inner body, and are provided so as to be separated from each other in the longitudinal direction.

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