JP6294731B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article such as a disposable paper diaper.

Conventionally, a main body having an abdominal side located on the ventral side of the human body and a dorsal side located on the back side, a pair of fastening tapes extending from both sides of the main body, and a pair of fastening tapes are detachable A fixed-type disposable diaper provided with a to-be-fixed portion that is fixed to a sheet is widely used.
As a fastening tape used for this fastening type paper diaper, a fastening tape having elasticity (stretchable fastening tape) for the purpose of improving fit to a wearer is known.

  The elastic fastening tape can be fitted to the body so that the paper diaper is not slipped off by tightening the waist around the wearer with an appropriate strength and expanding and contracting following the movement of the wearer. However, when a wearer or caregiver of a paper diaper pulls the elastic fastening tape to fix it, the elastic fastening tape may be pulled too much, and it may be over-tightened and press around the abdomen. . In addition, when stretched strongly, the stretchable fastening tape may be pulled to near the limit. If fastened in this state, there is no room for elongation, so stretchability cannot be obtained.

Therefore, in order to solve these problems, various elastic fastening tapes have been proposed. For example, a display that can visually recognize the degree of expansion and contraction is incorporated on the surface of the elastic fastening tape, and an elastic fastening tape that can visually recognize the degree of expansion of the tape from the outside has been proposed (Patent Document 1). .
As another example of the elastic fastening tape, there is known an elastic fastening tape provided with an elastic sheet in which a thread member having low elasticity is provided in a lattice between elastic fiber sheets (patent) Reference 2). This elastic fastening tape is designed so that the tension force is slowly transmitted to the thread-like member, so that even if it is fastened and momentarily attached, it does not fully stretch. It can be fastened in a state where there is a margin in elasticity.

JP 2005-1111175 A JP 2012-016455 A

However, in the case where the degree of extension is made visible, the user must always make extension while confirming the degree of extension, which is troublesome for the user and worsens usability.
Further, in the case where the stretchable fastening tape itself is difficult to stretch, there is a problem that the fit feeling is lowered because it becomes more difficult to follow the movement of the wearer as it becomes harder to stretch.
Furthermore, since the above-mentioned method does not prevent the elastic fastening tape from being physically stretched, it is not possible to completely prevent the elastic fastening tape from being pulled to near the limit when pulled with a strong force. Can not.

  This invention is made | formed in view of such a problem, and the subject of this invention is the fastening type | mold paper diaper which has a stretchable fastening sheet (stretchable fastening tape), for example, a stretchable fastening sheet | seat. Even when the sheet is pulled strongly, the sheet is prevented from being pulled excessively, and is securely fixed in a state in which the stretchability of the stretchable fastening sheet is maintained.

In order to solve the above-mentioned problem, the invention described in claim 1
In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
Equipped with a,
Wherein the free end on both sides direction of extension suppression sheet, the first second fastening member which can be freely fastened detachably to the fastening portion, characterized that you have been fixed.

The invention described in claim 2
The absorbent article according to claim 1 ,
A surface of the stretchable sheet on the side of the extension suppressing sheet is provided with a second fastened portion to which the second fastening member can be fastened;
The fastening force of the second fastening member and the second fastening part is smaller than the fastening force of the first fastening member and the first fastening part.

The invention according to claim 3
In the absorptive article according to claim 1 or 2 ,
The fastening force of the second fastening member and the first fastening part is smaller than the fastening force of the first fastening member and the first fastening part.

The invention according to claim 4
In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
A free end portion on both sides of the extension suppressing sheet is provided with a seal portion that can be detachably bonded to the stretchable sheet,
An adhesive force between the seal portion and the stretchable sheet is smaller than a fastening force between the first fastening member and the first fastening portion.

The invention described in claim 5
In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
When the stretchable sheet and the extension restraining sheet are stacked, a part of the stretch restraining sheet is exposed to the outside from the stretchable sheet.

The invention described in claim 6
In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
The stretch suppressing sheet is provided with a low stretchable portion having a lower stretchability than the stretchable portion.

The invention described in claim 7
In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
The limit length when the extension suppressing sheet is extended is shorter than the limit length when the stretchable sheet is extended.

The invention according to claim 8 provides:
The absorbent article according to claim 7 ,
The extension suppressing sheet includes a bent portion in which a part of the extension suppressing sheet is bent in a width direction orthogonal to the extending direction.

The invention according to claim 9 is:
In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
A perforation that traverses along the width direction orthogonal to the extending direction of the extension suppressing sheet is provided at a base end portion of the extension suppressing sheet.

  According to the present invention, since the extension of the stretchable sheet is suppressed in the middle by the stretch suppressing sheet, the stretchable sheet does not stretch too much even when pulled with a strong force. Therefore, the stretchable sheet can be fixed in a state where the stretchability is reliably maintained. Therefore, it can be said that the absorbent article of the present invention can be mounted in a state where the stretchable effect of the stretchable sheet can be sufficiently exhibited, and is an absorbent article with good fit. Moreover, since the effect of this invention is acquired only by a user pulling and fixing an elastic sheet, it is an easy-to-use absorbent article without burdening the user.

It is a bottom development figure of the back side of the disposable paper diaper in the present invention. It is a plane expanded view of the front side of the disposable paper diaper in FIG. It is a perspective view at the time of assembling the disposable paper diaper of FIG. 1 in the state at the time of mounting | wearing. It is sectional drawing of the IV-IV part in FIG. FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 1, (a) before fastening and (b) at the time of fastening. It is sectional drawing in the modification 1, (a) is at the time of fixation, (b) is a case where it moves leftward after attachment, (c) is a case where it moves rightward after attachment. It is sectional drawing in the modification 2, (a) is at the time of fixation, (b) is a case where it moves leftward after attachment, (c) is a case where it moves rightward after attachment. It is sectional drawing in the modification 3, (a) is before fixation, (b) is at the time of fixation. It is sectional drawing in the modification 4. It is an expansion schematic diagram of the extension suppression sheet | seat vicinity in the bottom view of the modification 5, (a) is before perforation cutting, (b) is after perforation cutting.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated example. In describing the embodiment for carrying out the present invention, the width direction of the disposable paper diaper 1 is the left-right direction, the direction perpendicular to the width direction is the up-down direction, and the direction perpendicular to the surface of the disposable paper diaper 1 is the front-rear direction. It will be shown and described.

  As shown in FIGS. 1 and 2, the disposable paper diaper 1 includes a main body 10 having an abdominal part 11 located on the abdomen side of a human body and a back side part 12 located on the back side when worn. 10 is a pair of stretchable sheets 20, 20 provided to extend in both directions of the back side portion 12, and a pair of stretch suppression sheets 30, 30 provided on the rear side of the stretchable sheets 20, 20. And the 1st to-be-attached part 40 provided in the back side of the abdominal side part 11 in order to lock these sheets is comprised.

When the disposable paper diaper 1 is mounted, the main body 10 is covered from the abdomen side to the back side of the crotch part of the human body, and the pair of stretchable sheets 20 and 20 and the pair of stretch suppression sheets 30 and 30 described above are the first. 1 The crotch part 13 is formed and attached to a position located on the crotch, being fixed to the to-be-attached part 40 (FIG. 3). Here, the ventral side portions 11 and 111 extending to both outer sides in the ventral side portion 11 and the back side extending portions 121 and 121 extending to both outer sides in the back side portion 12 are formed by the disposable diaper 1. When mounted, the waist portion 14 is formed. Further, since an elastic member 141 such as rubber thread is provided along the width direction (left-right direction) at the center of the edge portion along the waist circumference direction of the back side portion 12, a plane gather is formed by the elastic member 141. The main body 10 is formed to be stretchable so as to fit around the wearer's torso.
Further, on both side edges of the crotch portion 13, two leg surrounding portions 15, 15 are formed from the abdominal side portion 11 to the dorsal side portion 12 and arranged around the leg of the body when worn. The leg circumference portion 15 is provided with elastic members 151 such as rubber thread in accordance with the curved shape thereof, and a flat gather is formed by the elastic members 151 and fits freely around the wearer's leg so as to prevent side leakage. It comes to prevent.

  As shown in the cross-sectional view of FIG. 4, the main body 10 includes a liquid-permeable top sheet 10a provided on the contact surface side (front side) with the skin when worn, and the opposite side (rear side) with the skin when worn. A back sheet 10b provided on the side), an absorbent body 10c interposed between the top sheet 10a and the back sheet 10b, and a pair of left and right gather sheets 10d and 10d provided along the vertical direction on the top sheet 10a side. And is composed mainly of.

The top sheet 10a is a liquid-permeable sheet, is provided on a surface that comes into contact with the skin when the disposable paper diaper 1 is worn, and plays a role of receiving body fluid and transporting it to the absorber 10c.
As the material of the top sheet 10a, an olefin type such as polyethylene or polypropylene, a polyester type or a polyamide type synthetic fiber, a recycled fiber such as rayon or cupra, or a natural fiber such as cotton is used as a fiber material. It is preferable to use a material processed by an appropriate processing method such as a method, a thermal bond method, a melt blown method, or a needle punch method.

The back sheet 10b is provided on the surface that does not come into contact with the skin when the disposable paper diaper 1 is mounted, and is formed by bonding the waterproof sheet 16 and the exterior sheet 17 together. The waterproof sheet 16 plays the role of preventing the body diaper 1 from seeping out and leaking out, and the exterior sheet 17 plays the role of improving the texture of the outer surface of the paper diaper 1.
As the material of the waterproof sheet 16, for example, a sheet material having at least water-impervious properties such as polyethylene and polypropylene, and a sheet material having moisture permeability from the viewpoint of preventing stuffiness is preferably used.
As a material for the exterior sheet 17, it is preferable to use a material excellent in smoothness and flexibility. For example, similarly to the top sheet 10a, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used. Nonwoven fabrics obtained by appropriate processing methods such as the lace method, spunbond method, thermal bond method, melt blown method, needle punch method can be used. It is preferable to use an excellent nonwoven fabric. Water repellent coated with silicone, paraffin metal or alkylchromic water repellent materials to prevent urine from penetrating, to prevent blurring and to improve skin feel (dry feeling) A treated nonwoven fabric may be used.

The absorbent body 10c is interposed between the top sheet 10a and the back sheet 10b, and has a high water absorption property such as an absorbent material such as cotton and pulp, a sheet-like base material such as fiber or film, and a super absorbent polymer. The absorbent core S1 formed in combination with a resin is configured to be covered with a sheet material S2 such as a liquid-permeable crepe paper, a nonwoven fabric, or a perforated sheet.
Examples of the superabsorbent resin used in the absorbent body 10c include carboxymethylcellulose, polyacrylic acid and its salts, crosslinked acrylate polymer, starch-acrylic acid graft copolymer, and hydrolysis of starch-acrylonitrile graft copolymer. A product obtained by partially cross-linking a blister column polymer such as a product, a cross-linked polyoxyethylene, a carboxymethyl cellulose, a polyethylene oxide, or a polyacrylamide, or a copolymer of isobutylene and maleic acid is preferably used.
The absorber 10c may have a single-layer structure or a structure divided into a plurality of layers. Further, the absorbent body 10 c is disposed at a position extending from the abdominal side portion 11 through the crotch portion 13 to the back side portion 12.

The gather sheets 10d and 10d are provided on both sides of the absorbent body 10c along the vertical direction from the abdomen 11 to the dorsal part 12 on the top sheet 10a side.
As shown in FIG. 4, the left and right inner portions of the gather sheets 10d and 10d are not fixed to the top sheet 10a, and a plurality of elastic members 18 are provided substantially in parallel along the vertical direction. A three-dimensional gather that rises in the shape of a "" and an inverted "" and that can be deformed in a stretchable manner according to the wearer's body shape is formed. On the other hand, the laterally outer portions of the gather sheets 10d and 10d are fixed so as to be disposed on the upper surface of the top sheet 10a on the side of the absorbent body 10c.
Further, as a material for the gather sheets 10d and 10d, for example, a non-woven fabric similar to the exterior sheet 17 can be used. However, while preventing the transmission of urine and the like, it prevents fogging and feels to the skin (dry feeling). ) Is preferably used a water-repellent treated non-woven fabric coated with a silicon-based, paraffin metal-based, alkylchromic water-based water repellent material or the like.

  As described above, the gather sheets 10d and 10d are provided along the vertical direction on the top sheet 10a side to prevent leakage in the horizontal direction. Here, as shown in FIG. 2, a back gather sheet 10e is provided along the left-right direction on the top sheet 10a side to prevent leakage in the vertical direction.

  The stretchable sheets 20 and 20 respectively extend from the back side portion 12 toward both sides, the base end portions are joined to the back side extension portions 121 and 121, and the free end portions 22 and 22 extend in both sides directions. It has a protruding shape. The stretchable sheets 20, 20 are stretchable portions 21, 21 that can be stretched at the extended portion, and a first fastening member 23 that is a male locking element of a hook-and-loop fastener provided at the free ends 22, 22. , 23, and is stretched with the left-right direction as the expansion / contraction direction when attached, and can be attached to the first attached part 40 provided on the rear side of the abdominal side part 11.

The sheet | seat base material of the elastic sheets 20 and 20 can be formed using the nonwoven fabric sheet similar to the top sheet 10a. Moreover, it is preferable that the nonwoven fabric sheet used here shall be the value within the range of 20-50gsm which can be expanded-contracted at the time of wear, and is excellent in durability in the base end part and the free end parts 22 and 22. Thus, it is preferable to set it as the value within the range of 60-80gsm.
The stretchable parts 21 and 21 are configured to be stretchable in the left-right direction by sandwiching a plurality of elastic stretchable members arranged in parallel in the vertical direction at a predetermined interval between two nonwoven fabrics and bonding them with an adhesive. ing.
The first fastening members 23, 23 are hooking elements of a male material of a hook-and-loop fastener, and are provided with a hook material on which a large number of protrusions such as a hook shape, a mushroom shape, and a hook shape are formed. And the 1st fastening members 23 and 23 can be detachably locked to the 1st to-be-attached part 40 provided in the back side of the stomach side part 11. As shown in FIG.

  The extension suppressing sheets 30 and 30 are provided on the back sheet 10 b side of the stretchable sheets 20 and 20, and the base end portion is joined to the back extension portion 121 in the same manner as the stretchable sheets 20 and 20. The free end portions 32, 32 project in a convex shape in both directions. Here, the stretch suppression sheets 30 and 30 have the same shape as the stretchable sheets 20 and 20, and are provided at the low stretchable portions 31 and 31 that are less stretchable than the stretchable portions 21 and 21 and the free end portions 32 and 32. The second fastening members 33 and 33 are provided, and at the time of mounting, the left and right directions are stretched in the expansion / contraction direction, and can be fixed to the first fixing portion 40 provided on the rear side of the abdominal side portion 11. ing.

The sheet | seat base material of the expansion | extension suppression sheets 30 and 30 can be formed using the nonwoven fabric sheet similar to the top sheet 10a similarly to the elastic sheets 20 and 20. FIG.
The low stretchable portions 31, 31 are formed using a stretchable nonwoven fabric that is less stretchable than the stretchable portions 21, 21, and is configured to be stretchable in the left-right direction. As the sheet material of the stretchable nonwoven fabric, for example, a spunbond nonwoven fabric or a melt blown nonwoven fabric formed of a thermoplastic elastomer resin such as polyolefin, polyamide, or polyurethane can be used.
Similar to the first fastening members 23, 23, the second fastening members 33, 33 are male fastening elements of the hook-and-loop fastener, and the first fastened portion 40 provided on the rear side of the ventral portion 11. In addition, it can be detachably locked. Here, the second fastening members 33, 33 have a smaller amount of male material than the first fastening members 23, 23, and the fastening force to the first fastened part 40 is the first fastening members 23, 23. Is weaker than
Moreover, as shown in FIG. 3, since the 2nd fastening members 33 and 33 can also be fixed to the 1st to-be-attached part 40, the fastening force to the 1st to-be-attached part 40 can be reinforced. Moreover, it can prevent that the expansion | extension suppression sheet | seat 30 hangs in the direction of gravity and becomes obstructive. Here, as described above, since the second fastening members 33 and 33 reduce the amount of male material and weaken the fastening force, it is difficult to prevent expansion and contraction of the stretchable sheets 20 and 20.

  Next, with respect to the state when the stretchable sheets 20 and 20 and the extension suppressing sheets 30 and 30 provided on the right back extension parts 121 and 121 are fixed to the first fixing part 40, the right sheet As an example, a case where the terminal is fixed will be described in detail with reference to FIG.

  First, as described above, the stretchable sheet 20 and the extension suppressing sheet 30 are joined at the base end portion to the back-side extending portion 121 composed of the back sheet 10b and the exterior sheet 17, respectively. Is overlapped and fixed on the back sheet 10b side of the elastic sheet 20 (FIG. 5A). Therefore, these sheets are pulled in a state of being overlapped, and are secured to the first secured part 40 by the first fastening member 23 provided at the free end 22 of the stretchable sheet 20. . Here, since the stretch suppressing sheet 30 is lower in stretchability than the stretchable sheet 20, the stretch suppressing sheet 30 is pulled according to the stretching force of the stretch suppressing sheet 30. Therefore, the stretchable sheet 20 can be fastened with a sufficient stretch force (FIG. 5B), and the stretchable effect can be sufficiently exerted even after being attached.

  Next, a modification of this embodiment will be described. In the following description of the modified example, the difference from the disposable paper diaper 1 of the present embodiment will be mainly described, and the same reference numerals are given to the same components, and the description will be omitted. Moreover, in the following modified examples of the stretchable sheets 20 and 20 and the extension suppressing sheets 30 and 30, the right-side sheet of the pair of sheets will be described as a representative example.

<Modification 1>
Modification 1 is a modification in the case where the second fastening member 33 provided on the extension suppressing sheet 30 is changed to a seal portion 34 as shown in FIG. 6. The seal portion 34 is formed of a material that can be bonded to the rear surface of the stretchable sheet 20 with a weak force. The adhesive force between the seal portion 34 and the stretchable sheet 20 is the first fastening of the stretchable sheet 20. The fastening force between the member 23 and the first fastened part 40 is weaker.

  As shown in FIG. 6A, the stretchable sheet 20 and the extension restraining sheet 30 in Modification 1 are first bonded by the first fastening member 23 of the stretchable sheet 20 in a state where two sheets are bonded by the seal portion 34. It is fixed to the fixing part 40. That is, as in the present embodiment, the stretchable sheet 20 is stretched together with the stretch suppression sheet 30 and is fastened with sufficient stretchability. At this time, since the two sheets are bonded to each other by the seal portion 34, the extension suppressing sheet 30 maintains the state of being bonded to the stretchable sheet 20 even after being fastened.

Here, the state of the stretchable sheet 20 and the stretch suppression sheet 30 when the first to-be-fixed portion 40 is displaced in the left-right direction due to the movement of the wearer after wearing will be described.
When the first to-be-attached portion 40 moves in the left direction, as shown in FIG. 6B, the stretchable sheet 20 and the extension restraining sheet 30 each move in the shrinking direction. It moves to the left together with the first to-be-attached portion 40 while being attached.
On the contrary, when the 1st to-be-adhered part 40 moves rightward, as shown in FIG.6 (c), since the elastic sheet 20 has the allowance for elasticity, the 1st to-be-attached part 40 is. Move right while staying on. On the other hand, since the expansion | extension suppression sheet | seat 30 has no allowance for elasticity and the adhesive force of the seal part 34 is weak, it cannot move rightward. Therefore, the extension suppressing sheet 30 is once peeled off from the stretchable sheet 20 or slid on the surface of the stretchable sheet 20, and finally leftward of the stretchable sheet 20 as shown in FIG. It is bonded again at the position in the direction by the seal portion 34.

  As described above, in Modification 1, after the elastic sheet 20 is fixed to the first fixing portion 40, the extension suppressing sheet 30 can be left in the state of being bonded to the elastic sheet 20. Here, in the case of the present embodiment, after the stretchable sheet 20 is fixed to the first fixed part 40, the expansion suppression sheet 30 is not fixed to the first fixed part 40, and thus the expansion suppression is performed. The sheet 30 may hang down in the direction of gravity. On the other hand, in the modified example 1, since the extension suppressing sheet 30 can be adhered to the stretchable sheet 20 by the seal portion 34, it can be prevented from drooping in the direction of gravity, and is convenient for the user. I can say that.

Although the seal portion 34 can be detachably attached to the rear surface of the stretchable sheet 20, it can of course be attached to the first to-be-attached portion 40. In this case, similarly to this embodiment, the elastic sheet 20 and the extension suppressing sheet 30 can be attached to the first attachment part 40 with two sheets.
In addition, in the modification 1, it was set as the structure which can be adhere | attached on the surface of the back side of the elastic sheet 20 by the seal part 34, However, If the expansion | extension suppression sheet | seat 30 can adhere | attach on the elastic sheet 20 with weak force The configuration can be changed as appropriate.

<Modification 2>
In the second modification, as shown in FIG. 7A, the second fastened portion 24 is provided on the rear surface of the stretchable sheet 20 so that the second fastening member 33 of the extension suppressing sheet 30 can be fastened. It is a thing. Also in the case of the modified example 2, as in the present embodiment, the stretchable sheet 20 is stretched together with the stretch suppression sheet 30 and is fastened with a stretchable margin.

Here, in the second modification, after the two sheets are fastened to the first fastened part 40, the first fastened part 40 is displaced in the left-right direction due to the movement of the wearer. The states of the stretchable sheet 20 and the extension restraining sheet 30 in the case of the damage will be described.
When the 1st to-be-adhered part 40 moves to left direction, the elastic sheet 20 and the expansion | extension suppression sheet | seat 30 are each attached to the 1st to-be-attached part 40 similarly to the case of the modification 1. Then, it moves to the left together with the first to-be-attached portion 40 (FIG. 7B).
Moreover, when the 1st to-be-adhered part 40 moves to the right direction, since the elastic sheet 20 has allowance for elasticity, it moves to the right direction, with it being attached to the 1st to-be-attached part 40 ( FIG. 7 (c)). On the other hand, the extension suppressing sheet 30 has no allowance for elasticity, and the fastening force of the second fastening member 33 is weak, so that it cannot move in the right direction. Therefore, the elongation suppressing sheet 30 is once peeled off from the stretchable sheet 20 or slid on the surface of the stretchable sheet 20, and finally, as shown in FIG. It is fixed again at the left position.
Of course, since the second fastening member 33 of the second modification can also be fixed to the first fixing portion 40, as shown in FIG. It is also possible to fasten to the first fastened part 40 with a sheet.
Thus, in the configuration of the second modification, the same effect as that of the first modification can be obtained.

<Modification 3>
In Modification 3, as shown in FIG. 8A, the elongation suppressing sheet 30 includes a bent portion 35 that is folded twice by folding a part of the sheet in place of the low stretchable portion 31. It is. Therefore, the extension suppressing sheet 30 can visually recognize the limit length when the sheet is extended to the limit. Further, by making the limit length when all the bent portions 35 of the extension suppressing sheet are extended shorter than the limit length of the stretchable sheet 20, the stretchable sheet 20 is secured in a state where there is a margin in the stretch force. (Fig. 8 (b)).
Here, the sheet base material of the bent portion 35 can be formed using a nonwoven fabric sheet similar to the top sheet 10a. Moreover, it is preferable that the nonwoven fabric sheet used here shall be the value within the range of 60-80gsm so that the fabric weight may be excellent at the time of wear similarly to a base end part and a free end part.
In addition, if the above-mentioned effect is acquired, the bending area | region and bending method of the expansion | extension suppression sheet | seat 30 bend | folded in the bending part 35 can be changed suitably.

<Modification 4>
Modification 4 is a modification in which the area of the free end portion 32 of the extension suppressing sheet 30 is made larger than that of the free end portion 22 of the stretchable sheet 20 as shown in FIG. 9.
Since the free end portion 32 of the stretchable sheet 20 in the modification 4 protrudes from the front end of the stretchable sheet 20, the free end portion 32 is easily pinched. Accordingly, when the stretchable sheet 20 and the extension restraining sheet 30 are fastened, the user can easily pinch the free end 32 of the stretch restraining sheet 30 and guide it to the first fastened part 40. Usability is improved.
In the modified example 4, the area of the free end portion 32 of the extension suppressing sheet 30 is made larger than that of the stretchable sheet 20, but the area other than the free end portion 32 may be increased, and the area The shape of the portion where the size is increased can be changed as appropriate.

<Modification 5>
Modification 5 is a modification in which a perforation 36 is provided in the width direction (vertical direction) of the base end portion of the extension suppressing sheet 30 as shown in FIG.
As described in the present embodiment, it is possible to fasten the extension restraining sheet 30 to the first fastened portion 40. However, since it is not an essential component after fastening, the perforation 36 is provided and cut off. A possible configuration is also possible. When cut off, the stretchable sheet 20 is exposed on the upper surface as shown in FIG.

  As described above, according to the present invention, in the stationary paper diaper 1 having the stretchable sheet 20, the stretch suppressing sheet 30 suppresses the stretch of the stretchable sheet 20 in the middle. Never too much. Therefore, the absorbent article of the present invention can be mounted in a state where the stretchable effect of the stretchable sheet 20 can be sufficiently exhibited, and can be said to be an absorbent article with good fit. Moreover, since the effect of this invention is acquired only by a user pulling a fastening sheet | seat and fastening, it is a burdensome thing for a user, and is a user-friendly absorbent article.

  In the present invention, the stretchable portions 21 and 21 of the stretchable sheets 20 and 20 acquire stretchability by a method in which a plurality of elastic stretchable members are extended between the sheets, and the stretchable sheets 30 and 30 are low stretchable. The parts 31 and 31 are assumed to acquire elasticity by using an elastic nonwoven fabric. However, if the low elastic parts 31 and 31 have lower elasticity than the elastic parts 21 and 21, the configuration can be changed as appropriate. . For example, the low stretchable portions 31 and 31 may also be formed by a method of extending a plurality of elastic stretchable members between the sheets, and the stretchability may be lowered by reducing the number of elastic stretchable members.

  In the present embodiment, the stretchable sheets 20 and 20 and the extension suppressing sheets 30 and 30 have the same shape, but need not necessarily have the same shape. Although the example which enlarges an area only in the free end parts 32 and 32 was shown in the modification 4 as an example, it is not restricted to this example, For example, the expansion | extension suppression sheets 30 and 30 other than a free end part are elastic sheets 20 and 20 The area may be smaller than that. In this case, it is possible to reduce the amount of material of the extension suppressing sheets 30 and 30. Further, at this time, if the sizes of the free ends 32, 32 that are pinched by hand when pulling are the same, there will be no inconvenience when pulling.

  Further, in the present invention, the second fastening members 33, 33 are provided at the free end portions 32, 32 of the extension suppressing sheets 30, 30, but the second fastening members 33, 33 are fixedly attached. Therefore, it is not necessarily provided.

  Further, in the present invention, the stretchable sheets 20 and 20 and the extension restraining sheets 30 and 30 are respectively provided with free end portions 22 and 22 and free end portions that protrude in the left and right directions so that the user can easily pinch them. Although 32 and 32 are provided, it is not always necessary to project the tip. For example, it is good also as a structure which makes the elastic sheet 20,20 and the expansion | extension suppression sheet | seat 30,30 each on a rectangle, and provides a fastening member near the free end part of the left-right direction.

  Furthermore, the scope of the present invention is not limited to the above, and various improvements and design changes may be made without departing from the spirit of the present invention.

1 disposable paper diapers (absorbent articles)
DESCRIPTION OF SYMBOLS 10 Main-body part 10a Top sheet 10b Back sheet 10c Absorber 10d Gather sheet 10e Back gather sheet 11 Abdominal side part 12 Back side part 13 Crotch part 14 Trunk circumference part 15 Leg circumference part 16 Waterproof sheet 17 Exterior sheet 18 Elastic member 20 Elasticity Sheet 21 Stretchable portion 22 Free end portion 23 First fastening member 24 Second fastened portion 30 Elongation suppression sheet 31 Low stretchable portion 32 Free end portion 33 Second fastening member 34 Seal portion 35 Bending portion 36 Perforation 40 First Securing part

Claims (9)

In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
Equipped with a,
Absorbent article wherein the free end on both sides direction of extension suppression sheet, the first second fastening member which can be freely fastened detachably to the fastening portion, characterized that you have been fixed. The absorbent article according to claim 1 ,
A surface of the stretchable sheet on the side of the extension suppressing sheet is provided with a second fastened portion to which the second fastening member can be fastened;
An absorbent article, wherein a fastening force between the second fastening member and the second fastening part is smaller than a fastening force between the first fastening member and the first fastening part. In the absorptive article according to claim 1 or 2 ,
An absorbent article, wherein a fastening force between the second fastening member and the first fastening part is smaller than a fastening force between the first fastening member and the first fastening part. In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
A free end portion on both sides of the extension suppressing sheet is provided with a seal portion that can be detachably bonded to the stretchable sheet,
An absorbent article, wherein an adhesive force between the seal portion and the stretchable sheet is smaller than a fastening force between the first fastening member and the first fastening portion. In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
An absorbent article, wherein, when the stretchable sheet and the extension restraining sheet are stacked, a part of the stretch restraining sheet comes out of the stretchable sheet. In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
The absorbent article according to claim 1, wherein the stretch suppressing sheet is provided with a low stretchable portion having lower stretchability than the stretchable portion. In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
The absorbent article, wherein a limit length when the extension suppressing sheet is extended is shorter than a limit length when the stretchable sheet is extended. The absorbent article according to claim 7 ,
The said extension suppression sheet | seat is equipped with the bending part by which the part of the said extension suppression sheet | seat was bend | folded in the width direction orthogonal to the extension direction, The absorbent article characterized by the above-mentioned. In an absorbent article comprising a body portion having a ventral portion located on the ventral side of the human body and a dorsal portion located on the dorsal side when worn, and having a liquid-permeable top sheet and a liquid-impervious back sheet,
A pair of stretchable sheets provided extending in both directions of the back side portion, having a stretchable stretchable portion, and having a first fastening member fixed to a free end portion in the both sides direction;
A pair of extension restraining sheets that are provided to extend in both sides of the back side part, are provided to overlap the back sheet side of the stretchable sheet, and a pair of extension restraining sheets that restrain the stretching by the stretchable part in the middle,
A first to-be-attached portion provided on an outer surface of the abdomen side portion on the back seat side, wherein the first fastening member is detachably attached;
With
An absorbent article, wherein a perforation that crosses a width direction perpendicular to an extending direction of the extension suppressing sheet is provided at a base end portion of the extension suppressing sheet.