JP2011212114A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article having a simple configuration which is easy to wear and maintains feeling of its fitness toward the human body.SOLUTION: The absorbent article has an inner pad 1 which includes an article body 10 having a liquid permeable surface sheet 11, a liquid impermeable back sheet 12 and an absorbent body 13 interposed between the surface sheet 11 and the back sheet 12, and is arranged from the abdominal side of the human body to cover the back side via the crotch region. The article body 10 has, on both its longitudinal ends, an abdominal extended part 30 and a back extended part 40 extending further in the longitudinal direction than the absorbent body 13. A front end of the abdominal extended part 30 and the back end of the back extended part 40 have locking parts (fastening tapes 33 and 43) for arranging and fixing the inner pad 1 on and to clothes worn by the human body. The abdominal extended part 30 and the back extended part 40 are configured to shrink in a direction in line with the longitudinal direction of the article body 10.

Description

  The present invention relates to an absorbent article.

2. Description of the Related Art Conventionally, as an absorbent article, an inner pad is known that is used by being attached to the inside of an article to be worn on a human body such as a disposable diaper.
There are two types of inner pads, one provided with a mechanical tape for attachment to an attachment and one provided with an adhesive layer. Of these, those using mechanical tape have higher adhesive strength than those equipped with an adhesive layer and are less likely to break. For example, when attached to an attachment such as a pants-type paper diaper, the torso around the attachment is shrunk. For this reason, it is easy to adhere not to a suitable attachment position but to the trunk periphery, and it is easy to cause a mounting mistake. For this reason, when attaching or replacing the inner pad, it takes time and effort to reattach the mechanical tape to a suitable position.

Thus, for example, Patent Document 1 proposes a diaper that facilitates replacement of an absorbent body that is mounted inside the diaper body and that allows the absorbent body to fit between the groins.
Specifically, the diaper of Patent Document 1 includes a pair of first connection pieces provided on the front body and the back body of the diaper body, and a pair of second connection pieces provided on both ends in the longitudinal direction of the absorber. The absorber is installed in the diaper main body by engaging the second connecting piece with the first connecting piece. Moreover, a connection part has a stretching property, and an absorber is urged | biased by a wearer's crotch by mounting | wearing a wearer in the state which the connection part extended.

JP 2005-137487 A

However, the diaper of patent document 1 needs to provide a connection piece in both a diaper main body and an absorber, and the structure was complicated.
An object of the present invention is to provide an absorbent article that has a simple configuration but can be easily attached and can maintain a fit to a human body.

In order to solve the above-mentioned problem, the invention described in claim 1
An article body having a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet, and inseam from the stomach side of the human body In the absorbent article arranged to cover the back side through,
At both ends in the longitudinal direction of the article main body portion, a ventral-side extending portion and a back-side extending portion extending in the longitudinal direction from the absorbent body are provided,
The front end portion of the ventral side extension portion and the rear end portion of the back side extension portion are provided with a locking portion that locks when the absorbent article is attached to an attachment attached to a human body,
The abdominal-side extension part and the back-side extension part are configured to be extendable and contractible in a direction along the longitudinal direction of the article main body part.

The invention according to claim 2 is the absorbent article according to claim 1,
A pair of gather sheets provided on both sides of the absorbent article in the widthwise direction on the top sheet side, provided from the ventral extension part to the back extension part,
In the pair of gather sheets, an elastic member is arranged along the longitudinal direction of the absorbent article,
The abdominal-side extension part and the back-side extension part are expanded and contracted in the direction along the longitudinal direction of the article main body by the elastic member.

The invention according to claim 3 is the absorbent article according to claim 1,
In the ventral extension part and the dorsal extension part, a plurality of cuts are formed,
The abdominal extension part and the dorsal extension part extend and contract in the direction along the longitudinal direction of the article body part by the cut.

The invention according to claim 4 is the absorbent article according to claim 3,
The notch is formed obliquely with respect to the short direction.

Moreover, invention of Claim 5 is an absorbent article as described in any one of Claims 1-4,
The locking region where the locking portion is arranged in the ventral extension portion and the dorsal extension portion is a non-stretchable region that does not expand and contract.

The invention according to claim 6 is the absorbent article according to any one of claims 1 to 5,
The ventral extension and the dorsal extension are
A locking region where the locking portion is disposed;
A first region of a non-stretchable region that is continuous with an end of the locking region on the article main body side and does not stretch;
A second region of the stretchable region that is continuous with the end of the first region on the article main body side and is stretchable;
It is characterized by providing.

According to the present invention, the abdominal extension part and the back extension part are configured to be extendable in the direction along the longitudinal direction of the article main body part. By simply locking the locking part at a predetermined position, the article body part of the absorbent article is arranged at a suitable position, and there is a mounting error such as the locking part being stuck to an undesired position. It does not occur and the absorbent article can be easily mounted or replaced.
Moreover, since the abdominal extension part and the back extension part expand / contract according to the load by the urine etc. which hangs on the article main body part or the movement of the human body, the fit to the human body can be maintained.
Further, the absorbent article is simply provided with an abdominal extension part and a back extension part that extend in the longitudinal direction from the absorbent body and can be expanded and contracted at both ends in the longitudinal direction of the article main body. It is a configuration.
Therefore, although it is simple structure, it can be set as the absorbent article which is easy to mount | wear and can maintain a feeling of fitting to a human body.

It is a perspective view which shows the absorbent article in this invention. It is a plane development view which shows the absorbent article of FIG. It is a cross-sectional schematic diagram in the III-III line of FIG. It is a cross-sectional schematic diagram in the IV-IV line of FIG. It is a figure for demonstrating the state which mounted | wore the paper diaper with the absorbent article of FIG. It is a cross-sectional schematic diagram in the VI-VI line of FIG. It is a plane development view showing an absorptive article of a 2nd embodiment. FIG. 8 is a plan development view showing a modification of FIG. 7. It is a plane development view showing an absorptive article of a 3rd embodiment. It is a plane development view showing an absorptive article of a 4th embodiment. It is a figure for demonstrating the state at the time of mounting | wearing of the absorbent article of FIG. It is a cross-sectional schematic diagram which shows the modification of the absorbent article in this invention.

  Hereinafter, embodiments of 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 examples.

[First Embodiment]
First, the absorbent article in 1st Embodiment is demonstrated.
The absorbent article is, for example, an inner pad that absorbs urine for nighttime or for a long time, and is used by being detachably / replaceable attached to a human body such as a diaper, a diaper cover, and pants. The
In the following description, as an absorbent article, an inner pad that is attached to the inside of a pants-type disposable paper diaper (attachment) will be described as an example.
Further, in the following description, in a state where the absorbent article is deployed, the side located on the abdomen side of the wearer (human body) at the time of wearing is the front side, the side located on the back side is the rear side, and the side in contact with the wearer is The upper side, the opposite side to the side in contact with the wearer, is the lower side, and the direction orthogonal to both the front-rear direction and the vertical direction is the left-right direction.

<Configuration of inner pad>
The inner pad 1 has a ventral side portion 14 formed at one end and a back side portion 15 formed at the other end so as to cover the crotch portion of the human body from the ventral side to the back side. Further, a crotch part 16 is formed between the abdominal side part 14 and the dorsal side part 15, and both edges of the crotch part 16 are provided with a leg surrounding part 17 surrounding the wearer's leg when worn. It has become.

  The inner pad 1 includes, for example, as shown in FIGS. 1 to 4, a liquid-permeable surface sheet 11 provided on the upper side, a liquid-impermeable back sheet 12 provided on the lower side, a surface sheet 11 and a back surface. The article main body 10 having the absorbent body 13 interposed between the sheet 12 and the longitudinal direction of the inner pad 1 on both side portions (left side and right side) in the width direction of the absorbent body 13 on the surface sheet 11 side. Gather sheets 20 and 20 provided along the direction (front-rear direction), and the ventral side extension part 30 extending in the longitudinal direction (front direction) from the absorbent body 13 from the front end part of the article main body part 10; A back-side extending portion 40 that extends in the longitudinal direction (backward direction) from the absorbent body 13 from the rear end portion of the article main body portion 10 is provided.

The top sheet 11 forms a surface that comes into contact with the wearer when the inner pad 1 is worn, is provided on the upper side of the absorbent body 13, receives a body fluid, and plays a role of transporting to the absorbent body 13. It is a sheet.
Examples of the liquid-permeable sheet include a net-like sheet material obtained by plain weaving of yarn such as nylon and polyethylene terephthalate, a film sheet material formed with a large number of through holes, a film sheet material such as polyethylene and polypropylene, and liquid permeability. A woven fabric and a non-woven fabric are suitable, and a nonwoven fabric is particularly suitable. Nonwoven fabrics can be made from synthetic fibers such as polyethylene and polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. Spunlace method, spunbond method, thermal bond Processed by an appropriate processing method such as a method, a melt blown method, a needle punch method, or a combination of these methods can be used.

The back sheet 12 is a liquid-impermeable sheet that is provided below the absorbent body 13 and plays a role of preventing body fluid and the like from seeping out and leaking out to the outside of the inner pad 1.
The liquid-impervious sheet is preferably a sheet material having at least water shielding properties such as polyethylene or polypropylene, and is preferably a sheet material having moisture permeability from the viewpoint of preventing stuffiness. As a sheet material having this water barrier property and moisture permeability, for example, a sheet is formed by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretched in a uniaxial or biaxial direction. The microporous sheet material obtained by is preferably used. In addition, a laminated nonwoven fabric composed of a film layer having liquid impermeability and a nonwoven fabric layer having air permeability may be used. A laminated nonwoven fabric is a nonwoven fabric called a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, for example, and is a nonwoven fabric having both liquid impermeability and air permeability.
The back sheet 12 may be moisture-impermeable as long as it is a liquid-impermeable sheet.

For example, the top sheet 11 covers the surface of the absorbent body 13 (skin contact surface side) and is folded inward at the longitudinal both sides of the top surface of the absorbent body 13.
The back sheet 12 covers, for example, the bottom surface of the absorber 13, further covers the side surface of the absorber 13, and is folded back to the top sheet 11 side (inside) at both longitudinal sides of the top surface of the absorber 13.
The portion folded inside the top sheet 11 and the portion folded inside the back sheet 12 are bonded to each other by, for example, a hot melt adhesive.

The absorber 13 is disposed at a position extending from the ventral side portion 14 through the crotch portion 16 to the back side portion 15.
The absorbent body 13 plays a role of absorbing water-like components such as urine as a body fluid when the inner pad 1 is used. For example, the absorbent body 13 is made of absorbent material such as cotton or pulp, super absorbent polymer (SAP; Super). Absorbent Polymer), sheet-like base materials such as fibers and films, and the like.

The gather sheets 20 and 20 are, for example, for preventing excrement excreted in the article main body 10 from falling off.
The gather sheets 20, 20 are provided on both side edges along the longitudinal direction (front-rear direction) of the absorbent body 13 from the abdominal side portion 14 to the back side portion 15 on the upper surface side of the topsheet 11. .
The outer portion of the gather sheets 20, 20 in the width direction (left-right direction) is a fixed end that is fixed by being affixed to the surface opposite to the topsheet 11 side in the portion folded back inside the backsheet 12. ing. Further, the gather sheets 20, 20 have inner portions in the width direction that are free ends, and a plurality of elastic members 21, such as thread rubber, are provided substantially in parallel along the longitudinal direction of the gather sheets 20, 20. In addition, a three-dimensional gather that rises in a reverse shape and can be deformed in a stretchable manner according to the wearer's body shape is formed.

The gather sheet 20 is formed of, for example, a non-woven fabric that does not allow liquid to easily permeate, a plastic sheet that does not easily allow liquid to permeate, or a composite thereof.
Examples of non-permeable nonwoven fabrics include spunbond nonwoven fabric, spunbond nonwoven fabric-melt blown nonwoven fabric-spunbond nonwoven fabric, spunbond nonwoven fabric-melt blown nonwoven fabric-melt blown nonwoven fabric-spunbond nonwoven fabric, heat roll nonwoven fabric, liquid impervious nonwoven fabric, Examples include air-through nonwoven fabric.

The ventral extension 30 is formed by sticking two nonwoven fabrics 31a and 31b.
As the raw material fibers constituting the nonwoven fabrics 31a and 31b, for example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and the like are used. be able to. In addition, as a method for producing a nonwoven fabric, a known method can be used as appropriate, and examples thereof include a spunlace method, a spunbond method, a thermal bond method, a melt blow method, a needle punch method, or a combination of these methods. It is done.
Between the two non-woven fabrics 31a and 31b, a plurality of elastic members 32 such as thread rubber are arranged substantially in parallel along the longitudinal direction (front-rear direction). The side extension 30 can be expanded and contracted in the front-rear direction.
As the elastic member 32, for example, it is preferable to use a member having an elastic force capable of extending 100% with a force of 1.0 to 2.0 kgf. This is because if it is smaller than 1.0 kgf, it tends to shift, and if it is larger than 2.0 kgf, it is difficult to stretch.

  The front end of the lower surface of the ventral extension 30 is provided with a fastening tape (locking portion) 33 that is a locking element of a male material of a hook-and-loop fastener, and the inner pad 1 is worn by this fastening tape 33. It can be fixed to the stomach side of a disposable diaper 100 (described later) worn by a person.

In the region where the fastening tape 33 is provided in the ventral extension 30 (the locking region K), the stretchable member 32 is not disposed and is a non-stretchable region that does not stretch, and therefore the fastening of the inner pad 1 when worn. The tape 33 is not shrunk. In addition, by making the locking region K a non-stretchable region, the locking region K has a strain, so that the fastening tape 33 can be easily adhered to the locking region K.
Further, at the rear end portion of the ventral side extension portion 30, the front end portion of the article main body portion 10 is sandwiched and fixed by the two nonwoven fabrics 31a and 31b.

The back extension part 40 is formed by sticking two nonwoven fabrics 41a and 41b.
As the material fibers constituting the nonwoven fabrics 41a and 41b, for example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton are used. be able to. In addition, as a method for producing a nonwoven fabric, a known method can be used as appropriate, and examples thereof include a spunlace method, a spunbond method, a thermal bond method, a melt blow method, a needle punch method, or a combination of these methods. It is done.
Between the two nonwoven fabrics 41a and 41b, a plurality of elastic members 42, such as thread rubber, are arranged substantially in parallel along the longitudinal direction (front-rear direction). The side extension 40 can be expanded and contracted in the front-rear direction.
As the elastic member 42, for example, it is preferable to use a member having an elastic force that can extend 100% with a force of 1.0 to 2.0 kgf. This is because if it is smaller than 1.0 kgf, it tends to shift, and if it is larger than 2.0 kgf, it is difficult to stretch.

  Further, a fastening tape (locking portion) 43 that is a hooking element of a male member of a hook-and-loop fastener is provided on the lower surface of the rear end portion of the back-side extending portion 40, and the inner pad is provided by this fastening tape 43. 1 can be fastened to the back side of the disposable diaper 100 worn by the wearer.

In the region (fastening region K) where the fastening tape 43 is provided in the dorsal extending portion 40, the stretchable member 42 is not disposed and is a non-stretchable region that does not stretch, and therefore the fastening of the inner pad 1 when worn. The tape 43 is not shrunk. In addition, by making the locking region K a non-stretchable region, the locking region K has a strain, so that the fastening tape 43 can be easily adhered to the locking region K.
Further, at the rear end portion of the back-side extending portion 40, the front end portion of the article main body portion 10 is sandwiched and fixed by the two nonwoven fabrics 41a and 41b.

<Composition of disposable diapers>
Here, a configuration of a pants-type disposable paper diaper (hereinafter referred to as a paper diaper) 100 which is an attachment to which the inner pad 1 is attached will be described.
For example, as shown in FIG. 5, the disposable diaper 100 is formed so as to cover the crotch portion of the human body from the abdominal side to the back side when worn, and one end portion is located on the abdominal side of the human body. The other end portion forms a dorsal side portion B located on the back side of the human body, and a space between the ventral side portion F and the dorsal side portion B forms a crotch portion M located on the crotch of the human body. Yes.
The paper diaper 100 is formed of a pants type by forming the side portions by fixing the end portions T1, T1 on the width direction side of the ventral side portion F and the end portions T2, T2 on the width direction side of the back side portion B, respectively. It is designed to be shaped into
Further, the paper diaper 100 includes a liquid-permeable top sheet 100a disposed on the contact surface side with the human body, an exterior body 100b disposed on the exterior side when used, and a space between the top sheet 100a and the exterior body 100b. And an absorptive main body (not shown) interposed.

The fastening tape 33 of the abdomen extending part 30 of the inner pad 1 is fastened to the abdomen side F of the paper diaper 100, and the fastening tape of the dorsal extension part 40 is attached to the back side B of the paper diaper 100. 43 is fastened, and the crotch part 16 of the article main body 10 is disposed in the crotch part M of the paper diaper 100, whereby the inner pad 1 is attached to the paper diaper 1.
In addition, it is good also as providing the to-be-attached member for affixing the fastening tapes 33 and 43 in the stomach side part F and the back side part B of the paper diaper 100. Moreover, in this case, it is preferable to match the dimensions of the fastening tapes 33 and 43 and the member to be secured. It is also preferable to align the length of the paper diaper 100 and the inner pad 1 in the front-rear direction.

<Inner pad mounting method>
When the inner pad 1 is attached to the paper diaper 100 worn by the wearer, first, the paper diaper 100 is lowered to the vicinity of the wearer's knee.
Next, the fastening tape 33 of the ventral side extension portion 30 of the inner pad 1 is locked at a predetermined position on the ventral side portion F of the paper diaper 100, and the fastening tape 43 of the back side extension portion 40 of the inner pad 1 is fixed to the paper diaper 100. The back side portion B is locked at a predetermined location.
At this time, the fastening tape 33 of the abdominal extension part 30 and the fastening tape 33 of the back extension part 40 are attached to the paper diaper 100 without performing an operation such as applying the article main body 10 of the inner pad 1 to the crotch M of the paper diaper 1. It is only necessary to be locked at predetermined positions on the ventral side F and the back side B.
Next, when the paper diaper 100 is pulled up to the original position, as shown in FIG. 6, the abdomen extending portion 30 and the dorsal extending portion 40 expand and contract according to the circumference of the wearer, and the article main body portion 10 is expanded. It will be arranged at a suitable position.

Accordingly, it is not necessary to apply the main body part 10 of the inner pad 1 to the crotch part M of the paper diaper 1, so that a mounting error such as erroneous attachment of the fastening tapes 33 and 43 to an undesired position occurs. There is no. Moreover, since there is no trouble of positioning the article main body 10 to the crotch part M and reattaching the fastening tapes 33 and 43, the inner pad 1 can be easily attached or replaced. Further, since the fastening tapes 33 and 43 are not accidentally attached to the top sheet 100a of the paper diaper 1, the top sheet 100a of the paper diaper 1 is not damaged.
Moreover, since the abdominal extension part 30 and the back extension part 40 can be expanded-contracted, when a wearer moves, the abdominal extension part 30 and the back extension part 40 track the movement. The inner pad 1 is suitably fitted to the wearer.
Also, when the inner pad 1 is loaded with urine or the like at the time of wearing, the abdominal extension 30 and the dorsal extension 40 extend according to the magnitude of the load, and the inner pad 1 is attached to the wearer. A well-fitted state is maintained.

As described above, according to the inner pad 1 of the present embodiment, the both ends in the longitudinal direction of the article main body 10 are provided with the ventral extension 30 and the back extension extending in the longitudinal direction from the absorbent body 13. Fastening tapes 33, 43 that are engaged when the inner pad 1 is attached to the paper diaper 1 are provided at the front end of the ventral extension 30 and the rear end of the back extension 40. The abdominal extension 30 and the back extension 40 are configured to be extendable in the direction along the longitudinal direction of the article body 10.
For this reason, the article main body 10 of the inner pad 1 is disposed at a suitable position simply by locking the fastening tapes 33 and 43 of the abdominal extension 30 and the back extension 40 at predetermined positions. Further, there is no mounting error such that the fastening tapes 33 and 43 are mistakenly attached to undesired positions and the inner pad 1 can be easily mounted or replaced.
Moreover, since the abdominal extension part 30 and the back extension part 40 expand / contract according to the load by the urine etc. which are applied to the article main body part 10 or the movement of the human body, the fit to the human body can be maintained.
Further, the inner pad 1 is provided only with the ventral side extension part 30 and the back side extension part 40 that extend in the longitudinal direction from the absorbent body 13 and can be expanded and contracted at both ends in the longitudinal direction of the article main body part 10. So it is a simple configuration.
Therefore, it is possible to provide the inner pad 1 that is easy to mount and can maintain a fit to the human body while having a simple configuration.

Moreover, according to the inner pad 1 of this embodiment, the area | region where the latching | locking part (fastening tapes 33 and 43) in the abdominal side extension part 30 and the back side extension part 40 is distribute | arranged is a non-stretchable area | region which does not expand / contract. Has been.
For this reason, a latching | locking part does not shrink at the time of mounting | wearing, and it can prevent that the inner pad 1 twists.

  In the present embodiment, the abdominal extension 30 and the dorsal extension 40 are configured to be extendable in the direction along the longitudinal direction of the article body 10 by providing the extension members 32 and 42. As described above, the material constituting the ventral extension 30 and the dorsal extension 40 is made of a highly stretchable nonwoven fabric so that it can be stretched in the direction along the longitudinal direction of the article body 10. It is also good to do.

  Moreover, in this embodiment, although the expansion-contraction members 32 and 42 are provided substantially parallel to the front-back direction, it is good also as arrange | positioning diagonally with respect to a transversal direction (left-right direction), for example. By doing in this way, the abdominal extension part 30 and the back extension part 40 can make it easy to follow opening and closing of the leg when a wearer walks. That is, since the elastic members 32 and 42 are arranged obliquely, the abdominal extension part 30 and the dorsal extension part 40 fit more when a force is applied in an oblique direction by the wearer's walking. It can be made easier.

[Second Embodiment]
Next, the absorbent article in the second embodiment will be described with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected to the same part as 1st Embodiment, and the description is abbreviate | omitted.

As shown in FIG. 7, the absorbent article 2 of the present embodiment includes an article main body 10, gather sheets 20, 20, abdominal extension 30 </ b> A, and a back extension 40 </ b> A. .
In the ventral extension 30A and the dorsal extension 40A, incisions 34, 44,... Substantially parallel to the left-right direction are formed at a plurality of locations, respectively. The ventral extension 30A and the dorsal extension The portion 40A can be expanded and contracted in the front-rear direction by the cuts 34, 44.
With such a configuration, the absorbent article 2 can obtain the same effects as those of the inner pad 1 of the first embodiment, but also does not use an elastic member. 40 A of side extension parts can be set as the structure which can be expanded-contracted.

Note that, as in the absorbent article 2A shown in FIG. 8, the cuts 34, 44... May be formed obliquely with respect to the short direction (left-right direction). By forming the notches 34 and 44 in this way, the abdominal extension 30A and the back extension 40A can easily follow the opening and closing of the legs when the wearer walks. That is, since the incisions 34, 44... Are formed obliquely, the abdominal extension 30A and the back extension 40A fit more when a force is applied in an oblique direction by the wearer's walk. It has become easier.
Therefore, it is possible to reduce the wobbling at the time of wearing and more suitably maintain the fit to the human body.

[Third Embodiment]
Next, the absorbent article according to the third embodiment will be described focusing on differences from the first embodiment. In addition, the same code | symbol is attached | subjected to the same part as 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 9, the absorbent article 3 of the present embodiment includes an article main body 10, gather sheets 50 and 50, an abdominal extension 30 </ b> B, a back extension 40 </ b> B, and the like. Yes.

On the upper surface side of the absorbent article 2, the gather sheets 50, 50 are on both side edges along the longitudinal direction (front-rear direction) of the absorbent body 13 from the front end of the ventral extension 30 </ b> B to the back extension 40 </ b> B. It is provided over the rear end of each.
The outer portions of the gather sheets 50, 50 in the width direction (left-right direction) are fixed ends. Further, the gather sheets 50, 50 have inner portions in the width direction that are free ends, and a plurality of elastic members 51 such as thread rubber are provided substantially in parallel along the longitudinal direction of the gather sheets 50, 50. In addition, a three-dimensional gather that rises in a reverse shape and can be deformed in a stretchable manner according to the wearer's body shape is formed.
And the abdominal extension part 30B and the back extension part 40B can be expanded-contracted in the front-back direction by the elastic members 51 ... provided in the gather sheets 50, 50.

  With such a configuration, the absorbent article 3 can obtain the same effect as that of the inner pad 1 of the first embodiment, and the gather sheets 50 and 50 extend from the ventral side extension portion 30B to the back side. Since it is provided over the part 40B, the leakage prevention effect can be further improved.

[Fourth Embodiment]
Next, the absorbent article according to the fourth embodiment will be described with a focus on differences from the first embodiment. In addition, the same code | symbol is attached | subjected to the same part as 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 10, the absorbent article 4 of the present embodiment includes an article main body 10, gather sheets 20 and 20, an abdominal extension 30 </ b> C, a back extension 40 </ b> C, and the like. Composed.

The abdomen extending portion 30C is connected to the locking region K where the fastening tape 33 is provided, the end of the locking region K on the article body 10 side, and the first region S1 of the non-stretchable region that does not expand and contract, and the first region S1. It has a second region S2 which is a stretchable region that is continuous with the end of the region S1 on the article main body 10 side and can be stretched.
Further, the back-side extending portion 40C is also connected to the locking region K where the fastening tape 43 is provided, the end of the locking region K on the article body 10 side, and the first region S1 of the non-stretchable region that does not expand and contract, and A second region S2 of a stretchable region that is continuous with the end of the first region S1 on the article body 10 side and that can be stretched is provided.
Note that the second region S2 of the present embodiment can be expanded and contracted in the front-rear direction by arranging a plurality of elastic members 32 and 42 such as thread rubber along the longitudinal direction (front-rear direction). However, other than this, for example, it may be possible to expand and contract in the front-rear direction by cutting. Alternatively, the gather sheets 20, 20 may be extended to the second region S <b> 2 and can be expanded and contracted in the front-rear direction by an elastic member disposed on the gather sheet 20.
The lengths of the first region S1 and the second region S2 can be set as appropriate. In the present embodiment, the locking region K is a non-stretchable region.

As shown in FIG. 11, when the absorbent article 4 is mounted, the end of the disposable diaper 1 is pulled out from the upper end of the disposable diaper 1 and folded outward to fasten the fastening tapes 33 and 43 to the outer surface of the pants.
At this time, since the locking region K and the first region S2 are non-stretchable and have a strain, they can be easily folded back.

  As described above, according to the absorbent article 4 of the present embodiment, the same effects as the inner pad 1 of the first embodiment can be obtained, and the fastening tapes 33 and 43 are fixed to the outer surface of the pants. Therefore, slipping off when the absorbent article 4 becomes heavy can be prevented.

  In addition, in the said 1st-4th embodiment, the structure which does not provide an expansion-contraction member in the area | region (locking area | region K) in which the fastening tape of the abdominal extension part and the back extension part was provided was illustrated. However, it is also possible to adopt a configuration in which an elastic member is provided.

  Moreover, although the said 1st-4th embodiment illustrated and demonstrated the structure which pinches | interposes and fixes the edge part of an article main body part with two nonwoven fabrics, a ventral | extensive extension part and a back | dorsal extension part. As shown in FIG. 12, the two non-woven fabrics forming the ventral side extension portion and the back side extension portion can be formed of the same sheet material continuous with the top sheet 11 and the back sheet 12. In this case, a plurality of elastic members 32 and 42 may be disposed between the absorber 13 and the fastening tapes 33 and 43 along the front-rear direction.

  Moreover, in the said 1st-4th embodiment, although demonstrated the case where the inner pad 1 was mounted | worn with the underpants-type paper diaper 100, it is good also as mounting | wearing directly with underwear (such as pants) It is good also as attaching to a paper diaper of a type.

1 Inner pad (absorbent article)
DESCRIPTION OF SYMBOLS 10 Article main-body part 11 Top sheet 12 Back sheet 13 Absorber 14 Abdominal side part 15 Back side part 16 Crotch part 17 Leg circumference part 20, 20 Gather sheet 21 Elastic member 30 Abdominal side extension part 31a, 31b Non-woven fabric 32 Elastic member 33 Fastening tape (locking part)
40 Back side extension parts 41a and 41b Non-woven fabric 42 Elastic member 43 Fastening tape (locking part)
100 disposable diapers (attachments)

Claims (6)

An article body having a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet, and inseam from the stomach side of the human body In the absorbent article arranged to cover the back side through,
At both ends in the longitudinal direction of the article main body portion, a ventral-side extending portion and a back-side extending portion extending in the longitudinal direction from the absorbent body are provided,
The front end portion of the ventral side extension portion and the rear end portion of the back side extension portion are provided with a locking portion that locks when the absorbent article is attached to an attachment attached to a human body,
The abdominal-side extension part and the back-side extension part are configured to be stretchable in a direction along the longitudinal direction of the article body part. A pair of gather sheets provided on both sides of the absorbent article in the widthwise direction on the top sheet side, provided from the ventral extension part to the back extension part,
In the pair of gather sheets, an elastic member is arranged along the longitudinal direction of the absorbent article,
2. The absorbent article according to claim 1, wherein the ventral extension part and the back extension part extend and contract in a direction along a longitudinal direction of the article main body part by the elastic member. In the ventral extension part and the dorsal extension part, a plurality of cuts are formed,
2. The absorbent article according to claim 1, wherein the ventral extension part and the dorsal extension part extend and contract in a direction along a longitudinal direction of the article main body part by the cutting.   The absorbent article according to claim 3, wherein the cut is formed obliquely with respect to the short direction.   The locking region in which the locking portion is arranged in the ventral extension portion and the dorsal extension portion is a non-stretchable region that does not expand and contract. Absorbent article according to item. The ventral extension and the dorsal extension are
A locking region where the locking portion is disposed;
A first region of a non-stretchable region that is continuous with an end of the locking region on the article main body side and does not stretch;
A second region of the stretchable region that is continuous with the end of the first region on the article main body side and is stretchable;
An absorptive article given in any 1 paragraph of Claims 1-5 characterized by things.

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