JP5721987B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article such as a paper diaper that absorbs body fluid.

  2. Description of the Related Art Conventionally, there are absorbent articles in which an elastic member is disposed on the crotch part of an exterior body to which an absorbent body is fixed, in particular, on the buttock side (see, for example, Patent Document 1). Thereby, it can be set as the state which became the state which the absorber inside the elastic member rose to the skin side, and was fitted in the crack of the buttocks.

JP 2000-140021 A

  However, when the elastic member is disposed in the crotch portion as in Patent Document 1, the exterior body is attracted to the width direction center portion side, and thus the width direction end portion side of the exterior body, that is, wearing There is a problem in that the leg-periphery portion arranged along the leg-periphery direction of the person easily turns over, and the buttock protrudes from the paper diaper.

  Then, the subject of this invention is providing the absorbent article which can improve the mounting | wearing property with respect to the wearer's body of the leg periphery part.

In order to solve the above-mentioned problem, the invention described in claim 1
An absorbent article comprising an absorbent body and an exterior body in which the absorbent body is fixed to the crotch part,
A first elastic member extending in the width direction from the substantially central part in the longitudinal direction of the crotch part of the exterior body to the back side part side is provided;
A pair of leg-around portions disposed along the wearer's leg-around direction is formed on each of the widthwise side edges of the exterior body,
Each of the leg periphery is provided with a turn-up prevention means for preventing the turn-up of both ends in the width direction of the leg periphery .
The curling prevention means is
A second elastic member provided at each of both ends in the width direction of the leg periphery, and extending from the back side to the crotch part;
The second elastic member is arranged to be spaced from an end portion of the first elastic member on the second elastic member side so as not to overlap the first elastic member .

The invention according to claim 2 is the absorbent article according to claim 1 ,
A third elastic member extending in the width direction is provided between the first elastic member and the second elastic member,
The third elastic member is arranged with a predetermined gap between an end portion on the second elastic member side and the second elastic member.

The invention according to claim 3 is the absorbent article according to claim 1 or 2 ,
A fourth elastic member that extends from the abdominal side to the crotch part is provided at each of both ends in the width direction of the leg periphery.

Invention of Claim 4 is an absorbent article as described in any one of Claims 1-3 ,
The curling prevention means is
A length adjustment member is provided at each of both ends in the width direction of the leg periphery, and is provided with a length adjusting member for adjusting the length of the leg periphery in the leg periphery.

The invention according to claim 5 is the absorbent article according to claim 1,
The curling prevention means is
Each of the both ends in the width direction of the leg periphery is expanded and contracted in the leg periphery direction.

  ADVANTAGE OF THE INVENTION According to this invention, the turning of the width direction both ends of a pair of leg circumference part arrange | positioned along a wearer's leg circumference direction can be prevented, and the mounting | wearing with respect to the wearer's body of the said leg circumference part Can be improved.

It is an expanded view of the paper diaper of one Embodiment illustrated as an absorbent article to which this invention is applied. It is principal part sectional drawing of the paper diaper in the II-II line | wire of FIG. It is a perspective view which shows the state which assembled the paper diaper of FIG. It is a figure which expands and shows a part of crotch part of the paper diaper of FIG. It is a perspective view which shows the paper diaper of the modification 1. FIG. It is a perspective view which shows the paper diaper of the modification 2.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

  FIG. 1 is a development view of a disposable diaper 100 according to an embodiment to which the present invention is applied, and FIG. 2 is a cross-sectional view of a main part of the disposable diaper 100 taken along line II-II in FIG. FIG. 3 is a perspective view showing a state in which the disposable diaper 100 is assembled.

The paper diaper 100 of this embodiment is the paper diaper 100 formed in the underpants shape which covers a wearer's crotch side from a stomach side to a back side, for example (refer FIG. 3).
In the following description, a direction extending from the wearer's back side to the belly side through the crotch is defined as a longitudinal direction X, and one direction substantially orthogonal to the longitudinal direction X is defined as a width direction Y.

  Specifically, as shown in FIGS. 1 to 3, the paper diaper 100 includes a top sheet 1 disposed on a contact surface that comes into contact with the wearer's body of the paper diaper 100, and an exterior body provided on the outside side when used and worn. 2, an absorbent body 3 interposed between the top sheet 1 and the exterior body 2, and a gather sheet 4 provided on both side edges in the width direction Y of the absorbent body 3.

The top sheet 1 has liquid permeability that allows permeation of body fluid such as urine quickly, and is formed in a shape that covers the surface side (skin side) of the absorbent body 3.
Moreover, the top sheet 1 is formed, for example with the liquid-permeable nonwoven fabric.
As the raw material of the nonwoven fabric forming the top sheet 1, either natural fibers or synthetic fibers may be used. Examples of natural fibers include cotton, cellulose (wood pulp), wool, silk, and the like. Examples of synthetic fibers include polypropylene (PP), polyethylene (PE), nylon, polyester (PET), and acrylic. In addition, PE / PP mixed nonwoven fabric, PE / PET mixed nonwoven fabric, and bicomponent fibers (mixed fibers) obtained by appropriately combining the above materials can also be used as the top sheet 1.

  The exterior body 2 includes an outer sheet 2a made of a liquid-impervious nonwoven fabric and a liquid-permeable inner sheet 2b attached to the outer sheet 2a. It is formed in a shape that covers the outside).

  Similarly to the top sheet 1, the inner sheet 2b is formed of, for example, a liquid-permeable nonwoven fabric. Moreover, as a raw material of the nonwoven fabric which forms the inner surface sheet 2b, the same material as the nonwoven fabric which forms the top sheet 1 is mentioned, for example.

An abdomen side portion 5 that covers the circumference of the wearer's belly of the paper diaper 100 is formed at one end portion in the longitudinal direction X of the outer package 2, and the back end of the wearer is covered at the other end portion. A back side part 6 is formed, and a crotch part 7 that covers the wearer's crotch part is formed between the abdomen side part 5 and the back side part 6.
The ventral part 5 and the dorsal part 6 are formed in a substantially rectangular shape having substantially the same width. And each edge part of the width direction Y side of the abdominal side part 5 and each edge part of the width direction Y side of the back | dorsal part 6 are each fixed, and the paper diaper 100 is a pants-shaped shape by forming the side part 10. (See FIG. 3).

In addition, each edge on the width direction Y side of the outer package 2 passes through the crotch portion 7 from each end on the width direction Y side of the abdominal side portion 5 and each end on the width direction Y side of the back side portion 6. A pair of leg-surrounding parts 8, 8 surrounding the leg of the wearer of the disposable diaper 100 are formed across the part.
The leg periphery portion 8 is arranged along the leg periphery direction of the wearer who uses the disposable diaper 100 so as to surround the wearer's leg periphery. Note that the direction around the leg is not limited to the direction surrounding the thigh itself with the wearer's femur as the center, and passes through at least the base of the thigh of the wearer's inseam and outside the body such as the thigh, buttocks and heels. Any direction extending so as to cover the surface may be used.
The leg periphery 8 has a leg periphery opening 81 corresponding to the wearer's leg.

Further, a plurality of elastic members such as rubber thread (for example, the back waist elastic member 6a) are sandwiched and fixed at a predetermined position between the outer sheet 2a and the inner sheet 2b of the exterior body 2. ing.
The arrangement of the elastic member will be described later.

The absorbent body 3 is fixed to the exterior body 2 so as to extend from a predetermined position on the crotch part 7 of the exterior body 2, more specifically, from a predetermined position on the abdomen side part 5 to the predetermined position on the back side part 6 through the crotch part 7. (See FIG. 1).
The absorbent body 3 absorbs water-like components such as urine as body fluid when the disposable diaper 100 is used. Specifically, the absorbent body 3 includes an absorbent core 3a formed by combining an absorbent material such as cotton and pulp, a sheet-like base material such as fiber or film, and a super absorbent resin, and an absorbent body. And a covering member 3b such as a liquid-permeable crepe paper covering the core 3a.

For example, the absorbent core 3 a is disposed from the abdominal side portion 5 through the crotch portion 7 to the back side portion 6 so that the longitudinal direction X thereof is substantially equal to the longitudinal direction X of the diaper body 1.
Further, for example, the absorbent core 3a is formed to be recessed inward so that the crotch portion 7 side is narrower than the abdomen side portion 5 side and the back side portion 6 side in correspondence with the shape of the paper diaper 100. ing.

  The covering member 3b wraps the absorbent core 3a as a whole, has a liquid permeability, and functions to absorb body fluid.

A waterproof film 9 is disposed on the exterior body 2 side of the absorbent body 3.
The waterproof film 9 has a water shielding property and functions to prevent a water-like portion that has passed through the covering member 3b from leaking to the exterior body 2 side.

On the top sheet 1 side of the disposable diaper 100, the gather sheet 4 is positioned at both side edges in the width direction Y of the absorbent body 3 at positions corresponding to both end portions of the crotch from the ventral end to the back end of the absorbent core 3a. Is provided.
Further, the gather sheet 4 is formed by folding a liquid-impervious nonwoven fabric sheet in two and fixing the folded surface by, for example, hot melt, heat sealing, ultrasonic sealing or the like. Further, the gather sheet 4 is fixed by being fixed so that the base end portion is sandwiched between the top sheet 1 and the outer sheet 2a in a state where the nonwoven fabric sheet is folded in half. A plurality of elastic members (for example, rubber thread, etc.) 4a,... Are sandwiched between the surfaces where the nonwoven fabric sheets are folded.

  In a state where the gather sheet 4 having such a structure is fixedly provided to the paper diaper 100, the three-dimensional gather 4b is formed by raising the free end of the gather sheet 4. And the gather sheet | seat 4 is closely_contact | adhered to a wearer's body by deform | transforming freely according to a wearer's body shape by the elastic member 4a.

  In addition, the nonwoven fabric which forms the gather sheet | seat 4 is comprised from the raw material substantially the same as the nonwoven fabric which forms the above-mentioned top sheet 1 and the outer surface sheet 2a, and the manufacturing method of these nonwoven fabrics is also substantially equal.

Next, an arrangement state of an elastic member (for example, the back waist elastic member 6a and the like) between the outer sheet 2a and the inner sheet 2b of the exterior body 2 will be described with reference to FIGS.
FIG. 4 is an enlarged view of a partial region surrounded by the one-dot chain line A of the crotch part 7 of the disposable diaper 100. In FIG. 1, the elastic member is represented by a broken line, and the interval (pattern) of the broken line is changed at the cut portion. In FIG. 4, the elastic member is represented by a solid line, and the cut portion is represented by a broken line.

A plurality of substantially straight back-side waistline elastic members 6a are disposed along the width direction Y on the back side portion 6 of the exterior body 2 (see FIG. 1).
Similarly, a plurality of substantially linear abdominal waist elastic members 5 a are arranged along the width direction Y on the abdominal side portion 5 of the exterior body 2.
These back-side waist elastic members 6a and abdomen-side waist elastic members 5a allow the paper diaper 100 to be stretchable around the wearer's waist, waist, and butt when using the paper diaper 100. is there. Of these elastic members 5a and 6a, a predetermined number of elastic members on the crotch 7 side are cut at a predetermined position on the substantially central side in the width direction Y, for example, a position overlapping the absorber 3 vertically. Yes. Thereby, the back side part 6 and the abdominal side part 5 are prevented from being pulled more than necessary by the contraction force of the back side waist elastic member 6a and the belly side waist elastic member 5a.

Further, a plurality of substantially straight back-side linear elastic members 7 a are arranged along the width direction Y on the back side 6 side of the crotch part 7 of the exterior body 2.
Specifically, the back-side linear elastic member 7a includes a first back-side linear elastic member 71a disposed on the back-side portion 6 side from a substantially central portion in the longitudinal direction X of the crotch portion 7, and the back-side portion 6 And a second dorsal linear elastic member 72a disposed in the vicinity.

The first back-side linear elastic member 71a extends along the width direction Y at the substantially central portion in the longitudinal direction X of the crotch portion 7 on the back side portion 6 side, that is, at both edges of the crotch portion 7 in the width direction Y side. A plurality of legs are extended so as to connect the leg portions 8 to each other.
Further, the first back-side linear elastic member 71a is cut at a predetermined position in the width direction Y. Specifically, the 1st back side linear elastic member 71a is cut | disconnected in two places outside the width direction Y of the said center part so that the width direction Y center part may be left. Thereby, the portion of the crotch part 7 on the back side 6 side from the substantially central part in the longitudinal direction X of the crotch part 7, that is, the buttock side of the crotch part 7, by the contraction force of the first back side linear elastic member 71 a Is pulled to the center side, and the corresponding part of the absorbent body 3 inside the exterior body 2 is raised to the skin side, so that the fit of the wearer who uses the paper diaper 100 to the crack of the buttocks is improved. be able to. Furthermore, it is possible to prevent the leg-surrounding portion 8 from being pulled more than necessary to the center side by the contraction force of the first back-side linear elastic member 71a.

Thus, the width direction Y center part of the 1st back side linear elastic member 71a extends in the width direction Y to the back side part 6 side from the longitudinal direction X substantially center part of the crotch part 7 of the exterior body 2. 1 constitutes an elastic member. Moreover, the width direction Y outer side part of the 1st back side linear elastic member 71a comprises the 3rd elastic member extended in the width direction Y. As shown in FIG.
That is, by cutting the first back-side linear elastic member 71a at a predetermined position, both the first elastic member and the third elastic member are configured.

The second dorsal linear elastic member 72a is close to the dorsal side portion 6 along the width direction Y, that is, so as to connect the leg surrounding portions 8 of the both edges of the crotch portion 7 in the width direction Y side. One is arranged.
Further, the second back side linear elastic member 72a, like the first back side linear elastic member 71a, leaves the center portion so as to leave the center portion in the width direction Y of the second back side linear elastic member 72a. Are cut at two locations on the outer side in the width direction Y. Thereby, it can prevent that the leg periphery part 8 is pulled to the center side more than necessary by the contraction force of the 2nd back side linear elastic member 72a.

  In addition, the number of the 1st back side linear elastic member 71a and the 2nd back side linear elastic member 72a is an example, and is not restricted to this, Each number can be changed arbitrarily suitably.

A first back-side leg elastic member 8a extending from the back side 6 side to the crotch part 7 is disposed at each of both ends in the width direction Y side of the leg circumference 8.
The first back side leg elastic member 8 a is provided on the back side 6 side of the crotch part 7 of the exterior body 2. That is, the first dorsal leg elastic member 8a is one end portion in the width direction Y of the back side portion 6 and from the end portion on the crotch portion 7 side to the other end portion in the width direction Y and on the crotch portion 7 side. It is arranged in a curved line so as to protrude over the end portion and toward the center of the crotch 7. Specifically, the first back-side leg elastic member 8a is predetermined from each of both ends in the width direction Y side of the leg periphery 8 so as to follow the leg periphery opening 81 of the leg periphery 8, for example. They are arranged with an interval (for example, about 0 to 15 mm). That is, if the first back side leg elastic member 8a is too far away from both ends in the width direction Y side of the leg circumference part 8, both ends in the width direction Y side of the leg circumference part 8 are separated from the wearer's body. In order to facilitate (turn over), the interval is adjusted in consideration of prevention of the turn over.

  Further, in the first dorsal leg circumference elastic member 8a, a portion extending in the width direction Y so as to connect the leg circumference portions 8 at the substantially central portion in the longitudinal direction X of the crotch portion 7 (convex tip portion). Is cut at a predetermined position on the substantially central side in the width direction Y, for example, at a position overlapping the absorber 3 vertically. Thereby, it can prevent that the longitudinal direction X center part of the leg periphery part 8 is pulled to the center side more than necessary by the contraction force of the 1st back side leg periphery elastic member 8a.

The first back leg elastic member 8a is disposed so as not to overlap the first back linear elastic member 71a (see FIG. 4).
That is, of the first back side leg elastic member 8a, a portion extending along both ends in the width direction Y side of the leg circumference part 8 (leg opening 81), and the first back side linear elastic member A predetermined interval S is provided between both ends of 71a in the width direction Y side. As a result, the contraction force of the first back-side linear elastic member 71a is not transmitted to the first back-side leg-around elastic member 8a, and the legs around the first back-side leg-around elastic member 8a are disposed. It can prevent that the both ends of the width direction Y side of the part 8 are pulled to the center side.

In this way, the first back-side leg elastic member 8a is provided at each of both ends in the width direction Y side of the leg-around portion 8, and the second elastic member extending from the back side 6 side to the crotch portion 7 is provided. It is composed. That is, the first dorsal leg elastic member 8a can improve the fit between the width direction Y-side ends of the leg periphery 8 and the wearer's body as a curling prevention means. It can prevent that the width direction Y side both ends turn up in the direction away from a wearer's body.
The first back leg elastic member 8a has a predetermined stretch rate (for example, about 110 to 400%) in consideration of the fit of the leg part 8 to the wearer's body and prevention of overtightening. It is preferably adjusted.
The elongation rate indicates the relationship (= H1 / H0) between the length H0 when the elastic band is not stretched (natural length) and the length H1 when the elastic band is stretched. For example, when a natural length of 10 cm is stretched to 20 cm, the stretch rate is 200%.

Further, on the back side 6 side of the exterior body 2, the back side 6 is curved in a curved shape so as to protrude from one end to the other end in the width direction Y and to the crotch 7 central side. A plurality of second back leg elastic members 8b are arranged.
When the paper diaper 100 is used, the second dorsal leg elastic member 8b allows the paper diaper 100 to expand and contract at the back side portion 6 of the wearer, particularly at the portion that wraps the heel.

Further, among the plurality of second back leg elastic members 8b,..., One second back leg elastic member 8b disposed closest to the crotch part 7 side is substantially the width direction Y of the crotch part 7. It is cut at a predetermined position on the center side, for example, at a position overlapping the absorber 3 vertically. Thereby, it can prevent that the longitudinal direction X center part of the leg periphery part 8 is pulled to the center side more than necessary by the contraction force of the 2nd back side leg periphery elastic member 8b.
Further, the remaining second back leg elastic member 8 b is cut at two locations outside the central portion in the width direction Y of the crotch portion 7. That is, the second back-side leg elastic member 8b disposed in the vicinity of the first back-side linear elastic member 71a is similar to the first back-side linear elastic member 71a in the width direction of the crotch portion 7. It is cut to leave the Y center. Thereby, the longitudinal direction X substantially central part of the back side part 6 side of the crotch part 7, that is, the part on the buttocks side of the crotch part 7, due to the contraction force in the center part in the width direction Y of the second back leg elastic member 8 b Is pulled to the center side, and the corresponding part of the absorbent body 3 inside the exterior body 2 is raised to the skin side, so that the fit of the wearer who uses the paper diaper 100 to the crack of the buttocks is improved. it can. Furthermore, the contraction force of the second back leg elastic member 8b can prevent the center part in the longitudinal direction X of the leg part 8 from being pulled more than necessary to the center side.

In addition, a plurality of substantially linear abdominal linear elastic members 7 b are arranged along the width direction Y on the side of the abdomen 5 of the crotch 7 of the exterior body 2.
The ventral-side linear elastic member 7b allows the disposable diaper 100 to expand and contract at the wearer's throat portion or the like when the disposable diaper 100 is used. Further, the abdominal linear elastic member 7b is cut at a predetermined position on the substantially central side in the width direction Y, for example, at a position overlapping the absorber 3 vertically. Thereby, it can prevent that the leg periphery part 8 is pulled to the center side more than necessary by the contraction force of the abdominal linear elastic member 7b.

Further, a first ventral leg-hole elastic member 8c extending from the ventral part 5 side to the crotch part 7 is disposed at each of both ends in the width direction Y side of the leg peripheral part 8.
The first ventral leg-around elastic member 8 c is provided on the ventral side 5 side of the crotch part 7 of the exterior body 2. That is, the first ventral leg-around elastic member 8c is one end portion in the width direction Y of the ventral side portion 5 and from the end portion on the crotch portion 7 side to the other end portion in the width direction Y and on the crotch portion 7 side. It is arranged in a curved line so as to protrude over the end portion and toward the center of the crotch 7. Specifically, the first abdominal leg elastic member 8c is, for example, a predetermined distance from each of the width direction Y side both ends of the leg periphery 8 along the leg opening 81 of the leg periphery 8. (For example, about 0 to 15 mm) is provided. That is, if the first ventral leg-around elastic member 8c is too far away from both ends in the width direction Y of the leg periphery 8, the both ends in the width direction Y of the leg periphery 8 are likely to be turned. The interval is adjusted in consideration of the prevention of the turn-up.

  Further, in the first ventral leg-around elastic member 8c, a portion extending in the width direction Y so as to connect the leg-around portions 8 at the substantially center portion in the longitudinal direction X of the crotch portion 7 (convex tip portion). Is cut at a predetermined position on the substantially central side in the width direction Y, for example, at a position overlapping the absorber 3 vertically. Thereby, it can prevent that the longitudinal direction X center part of the leg periphery part 8 is pulled more than the center side more than necessary by the contraction force of the 1st ventral-side leg elastic member 8c.

Also, the first ventral leg-around elastic member 8c is disposed so as not to overlap the ventral linear elastic member 7b (see FIG. 4).
That is, of the first abdominal leg elastic member 8c, a portion extending along both ends in the width direction Y side (leg opening 81) of the leg peripheral part 8 and the abdominal linear elastic member 7b. A predetermined interval is provided between both ends in the width direction Y side. As a result, the contraction force of the ventral linear elastic member 7b is not transmitted to the first ventral leg-around elastic member 8c, and the leg-surrounding portion 8 where the first ventral-leg elastic member 8c is disposed. It can prevent that the both ends of the width direction Y side are pulled to the center side.

Thus, the first ventral leg-around elastic member 8c is provided at each of both ends in the width direction Y side of the leg-surrounding part 8, and extends from the ventral part 5 side to the crotch part 7 as a fourth elastic member. It is composed.
The first ventral leg-hole elastic member 8c has a predetermined stretch rate (for example, about 110 to 400%) in consideration of the fit of the leg-hole portion 8 to the wearer's body and prevention of over-tightening. It is preferably adjusted.

Further, on the side of the abdomen 5 of the exterior body 2, the abdomen 5 is curved in a curved shape so as to protrude from one end to the other end in the width direction Y and to the center of the crotch 7. A plurality of elastic members 8d around the second ventral leg are arranged.
When the paper diaper 100 is used, the second abdominal leg elastic member 8d makes the paper diaper 100 stretchable at the wearer's abdominal side portion 5, particularly at the groin.

  Further, the plurality of second ventral leg-around elastic members 8d,... Are cut at a predetermined position on the crotch portion 7 on the substantially central side in the width direction Y, for example, a position overlapping the absorber 3 vertically. Thereby, it can prevent that the longitudinal direction X center part of the leg periphery part 8 is pulled more than the center side more than necessary by the contraction force of the 2nd ventral | limb leg elastic member 8d.

Next, a method for arranging each of the elastic members with respect to the exterior body 2 will be described.
Here, the arrangement of the elastic members with respect to the exterior body 2 is performed before the attachment of the absorber 3 to the exterior body 2.

Each elastic member is arranged on the outer sheet 2a coated with, for example, a hot melt adhesive in a state where the elastic member is pulled with a predetermined force. Specifically, the back waist elastic member 6a, the abdominal waist elastic member 5a, the dorsal side according to each part of the wearer who uses the disposable diaper 100 such as the waist, legs, abdomen, and back Linear elastic member 7a, first dorsal leg elastic member 8a, second dorsal leg elastic member 8b, ventral linear elastic member 7b, first ventral leg elastic member 8c, second ventral leg periphery Each elastic member such as the elastic member 8d is disposed at a predetermined position on the outer sheet 2a so as to have a predetermined expansion rate.
Then, the inner sheet 2b is superimposed on the outer sheet 2a so as to cover each elastic member, and the outer sheet 2a and the inner sheet 2b are heat-sealed.
Thereafter, the back waist elastic member 6a, the abdominal waist elastic member 5a, the back straight elastic member 7a, the first back leg elastic member 8a, the second back leg elastic member 8b, the ventral straight shape The elastic member 7b, the first ventral leg-around elastic member 8c, and the second ventral leg-around elastic member 8d are cut at predetermined positions.

As described above, according to the disposable diaper 100 of the present embodiment, the first dorsal linear elasticity extending in the width direction Y from the substantially center part in the longitudinal direction X of the crotch part 7 of the exterior body 2 to the dorsal side 6 side. Even in the structure in which the member 71a is provided to improve the wearability with respect to the crack of the heel part, both ends of the pair of leg periphery parts 8 and 8 arranged along the wearer's leg periphery direction are on the Y side in the width direction. It is possible to prevent turning away in the direction away from the wearer's body, and to improve the wearability of the leg periphery 8 on the wearer's body.
That is, the first back side elastic member 8a extending from the back side part 6 side to the crotch part 7 is provided at each of both ends in the width direction Y side of the leg part 8 so that the first back side Even if the exterior body 2 is attracted toward the center in the width direction Y by the linear elastic member 71a, both edges of the width direction Y side on the back side of the leg periphery 8 are worn by the first back side elastic member 8a. It is possible to make it difficult to form a gap between the body of the wearer and the body of the wearer. Thereby, the turn-up of the both ends of the leg direction part 8 in the width direction Y can be prevented.

  Further, the first back-side linear elastic member 71a is arranged with a predetermined interval S between the end on the first back-side leg elastic member 8a side and the first back-side leg elastic member 8a. Therefore, the contraction force of the first back-side linear elastic member 71a is not transmitted to the first back-side leg-around elastic member 8a, and the leg-back around the first back-side leg-around elastic member 8a is disposed. It can prevent that the both ends of the width direction Y side of the part 8 are pulled to the center side. Therefore, it is possible to improve the wearability of the leg periphery 8 on the wearer's body by the first back leg elastic member 8a.

  Furthermore, since the first ventral side leg elastic member 8c extending from the ventral part 5 side to the crotch part 7 is provided at each of both ends in the width direction Y side of the leg peripheral part 8, the first ventral side The leg-around elastic member 8c makes it possible to make the width direction Y-side edges on the belly side of the leg-around portion 8 in close contact with the wearer's body and make it difficult to create a gap between the wearer's body. Thereby, the turn-up of the both ends of the leg direction part 8 in the width direction Y can be prevented.

Below, the modification of the paper diaper 100 is demonstrated.
<Modification 1>
FIG. 5 is a perspective view showing a state in which the disposable diaper 200 according to the first modification is assembled.
Note that the disposable diaper 200 of Modification 1 is the same as that in the above-described embodiment except that it includes the length adjusting member 201 described below, and thus the description thereof is omitted.

  As shown in FIG. 5, the disposable diaper 200 of Modification 1 has a length adjustment for adjusting the length of the leg peripheral portion 8 in the leg peripheral direction at each of both ends in the width direction Y side of the leg peripheral portion 8. A member 201 is provided. In FIG. 5, only the length adjusting member 201 disposed on the right side in front view is illustrated.

The length adjusting member 201 is a portion where the side portions 10 of the paper diaper 100, that is, the end portions on the width direction Y side of the abdominal side portion 5 and the end portions on the width direction Y side of the back side portion 6 are fixed. It is arrange | positioned in the vicinity.
This length adjustment member 201 constitutes a turn-up preventing means for preventing turn-up of both ends in the width direction Y of the leg periphery 8 and is constituted by, for example, a fastening tape formed in a Z-fold shape. . And the lower plane part which comprises the "Z" shape of the said length adjustment member 201 is fixed to the predetermined position of the edge part by the side of the back side 6 of the leg periphery part 8, and the leg of a wearer's body is attached. The length of the leg-surrounding portion 8 in the leg-surrounding direction can be adjusted by changing the fastening position of the upper flat portion constituting the “Z” shape according to the dimension of the portion surrounded by the surrounding portion 8.

Therefore, according to the disposable diaper 200 of the first modification, the length adjustment member 201 can adjust the length of the leg periphery 8 in the leg periphery direction, and even if the size of the leg periphery varies depending on the wearer. The gap between each wearer's leg and the leg portion 8 can be reduced. Thereby, the turning of the both ends of the leg periphery 8 in the width direction Y can be prevented more appropriately, and the wearability of the leg periphery 8 on the wearer's body can be improved.
Moreover, by providing the length adjustment member 201 with a front / rear display unit that displays the front and rear of the paper diaper 200, the wearer can easily recognize the front and rear of the paper diaper 200.
Further, when the paper diaper 200 is discarded after use, the length adjusting member 201 can be used for fixing in a compact folded state.

  In the first modification, the length adjusting member 201 is provided in the paper diaper 200 including the first dorsal leg elastic member 8a as the second elastic member. The paper diaper 200 provided with the length adjusting member 201 is not limited to this, and whether or not the first back leg-around elastic member 8a (second elastic member) is provided can be arbitrarily changed as appropriate.

<Modification 2>
FIG. 6 is a perspective view showing a state in which the disposable diaper 300 according to the second modification is assembled.
In addition, since the paper diaper 300 of the modification 2 is the same as that of the said embodiment except for the external shape of the said paper diaper 300 demonstrated below, the description is abbreviate | omitted.

As shown in FIG. 6, the disposable diaper 300 according to the second modification includes the side portions 10 of the disposable diaper 300, that is, the end portions on the width direction Y side of the belly side portion 5 and the end portions on the width direction Y side of the back side portion 6. The trunks-type disposable diaper 300 is longer than the disposable diaper 100 of the above-described embodiment in the length of the portion to which the end portions are fixed.
That is, in the paper diaper 300, the length in the longitudinal direction X of the back side portion 6 and the abdominal side portion 5 is longer than that of the paper diaper 100 of the above embodiment, and the back side portion 6 and the ventral side of the wearer's body. A portion covered with the portion 5 extends to the thigh side.
Accordingly, the leg periphery 8 disposed along the direction of the leg of the wearer who uses the disposable diaper 300 is disposed so as to contact the thigh of the wearer, and the leg periphery 8 is attached to the wearer's body. Can be improved.

  Therefore, according to the disposable diaper 300 of the second modified example, as in the above-described embodiment, the ends of the pair of leg periphery portions 8 and 8 disposed along the wearer's leg periphery direction are turned up at both ends in the width direction Y side. It can prevent, and the mounting | wearing property with respect to the wearer's body of the said leg periphery part 8 can be improved.

The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the embodiment described above, each of the width direction Y side end portions of the leg periphery 8 may be extended and contracted in the direction of the leg, whereby the leg periphery 8 and the wearer's body It is possible to improve the wearability of the leg periphery 8 on the wearer's body.

  Similarly, for example, an adhesive member such as an adhesive tape is disposed on the skin side surface of each wearer at both ends in the width direction Y side of the leg periphery 8, and the width direction Y of the leg periphery 8 is arranged. You may make it contact | adhere each of a side both ends and a wearer's skin.

In the above embodiment, the first back-side linear elastic member 71a is disposed so as to connect the leg-surrounding portions 8 of the both edges in the width direction Y side of the crotch portion 7 to each other. The first elastic member is configured by the central portion in the width direction Y of the back-side linear elastic member 71a, and the third elastic member is configured by the outer portion in the width direction Y of the first back-side linear elastic member 71a. However, the first back-side linear elastic member 71a only needs to have a shape that extends in the width direction Y on the back side portion 6 side from at least the longitudinal center X of the crotch portion 7 of the exterior body 2. . In other words, the first back-side linear elastic member 71a does not necessarily need to be arranged so as to connect the leg-around portions 8 of both edges in the width direction Y side of the crotch portion 7, and the disposable diaper 100 has the third elasticity. Whether the member is provided or not can be arbitrarily changed as appropriate.
Furthermore, even in the configuration in which the disposable diaper 100 includes the third elastic member, the disposable diaper 100 may be formed of an elastic member different from the first elastic member.

  Moreover, in the said embodiment, although the structure which comprises the 1st ventral | leg side leg periphery elastic member 8c as a 4th elastic member was illustrated, it is an example and is not restricted to this, The 1st ventral side Whether or not the leg elastic member 8c is provided can be arbitrarily changed as appropriate.

100, 200, 300 Paper diapers (absorbent articles)
2 Exterior body 3 Absorber 5 Abdomen side part 6 Back side part 7 Crotch part 8 Leg circumference part 71a First back side linear elastic member (first elastic member, third elastic member)
8a Elastic member around the first dorsal leg (second elastic member, turning-up preventing means)
8c First ventral leg elastic member (fourth elastic member)
201 Length adjustment member (turning prevention means)

Claims (5)

An absorbent article comprising an absorbent body and an exterior body in which the absorbent body is fixed to the crotch part,
A first elastic member extending in the width direction from the substantially central part in the longitudinal direction of the crotch part of the exterior body to the back side part side is provided;
A pair of leg-around portions disposed along the wearer's leg-around direction is formed on each of the widthwise side edges of the exterior body,
Each of the leg periphery is provided with a turn-up prevention means for preventing the turn-up of both ends in the width direction of the leg periphery .
The curling prevention means is
A second elastic member provided at each of both ends in the width direction of the leg periphery, and extending from the back side to the crotch part;
The said 2nd elastic member is arrange | positioned at intervals from the edge part by the side of the said 2nd elastic member of the said 1st elastic member so that it may not overlap with the said 1st elastic member, Absorbency characterized by the above-mentioned. Goods. A third elastic member extending in the width direction is provided between the first elastic member and the second elastic member,
2. The absorbent article according to claim 1 , wherein the third elastic member is disposed at a predetermined interval between an end portion on the second elastic member side and the second elastic member. . The absorptivity according to claim 1 or 2 , wherein a fourth elastic member extending from the abdomen side to the crotch part is provided at each of both ends in the width direction of the leg periphery. Goods. The curling prevention means is
Provided in each of widthwise side ends of the leg portions, one of Claim 1 to 3, characterized in that it comprises a length adjustment member for adjusting the length of the leg-surrounding direction of the leg portion An absorbent article according to any one of the above. The curling prevention means is
The absorbent article according to claim 1, wherein each of both end portions in the width direction of the leg periphery portion is expanded and contracted in the leg periphery direction.

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