JP2023101039A - Absorbent article and shorts used by being attached with absorbent article - Google Patents

Abstract

To provide an absorbent article that does not cause a feeling of discomfort when worn.SOLUTION: An absorbent article includes an absorber and an end flap that extends from an edge in a vertical direction of the absorber to the outside in the vertical direction. The end flap includes a fastening part on a non-skin facing surface of the end flap, and a folding start point part that has a folding tendency for folding a part or all of the end flap toward the non-skin facing surface side, and extends in the horizontal direction. The absorbent article is used by being attached to shorts in a state that a part or all of the end flap is folded on the non-skin facing surface side along the folding start point part, and the part or all of the folded end flap is fixed by the fastening part.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to an absorbent article and shorts used with the absorbent article attached.

Absorbent articles such as disposable diapers, sanitary napkins, and incontinence pads typically have a top sheet facing the wearer's skin, a back sheet facing a worn article such as underwear, and an intervening arrangement between the two sheets. A fixing material is arranged on the non-skin-facing surface of the backsheet, which is the surface facing the wearing article, and the absorbent article is fixed to the wearing article by the fixing material.

For example, in Patent Document 1, rectangular hook tapes are attached in the vicinity of end flaps formed at both ends in the front-rear direction on the back side of the absorbent pad, and a cover sheet made of nonwoven fabric is attached to the annular portion around the hook tapes. Absorbent pads to which are attached are described. The document describes that the hook tape is joined to the non-woven fabric fibers forming the inner surface of the disposable diaper by the hook-shaped protrusions of the hook tape.

Patent Literature 2 describes an absorbent article in which attachment fixing portions are provided on the front side portion and the rear side portion on the non-skin surface side of the back sheet of the absorbent article. The document describes that the absorbent article can be attached to the skin side of the undergarment by fastening the attachment fixing portion to the undergarment.

JP 2009-178421 A JP 2020-146122 A

Since an absorbent article is generally used in contact with a wearer, it is desired that the wearer does not feel uncomfortable even when worn for a long period of time. However, in the absorbent articles described in Patent Documents 1 and 2, the edge of the absorbent article may come into contact with the skin, which may irritate the skin and cause discomfort. be.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an absorbent article that can reduce discomfort when worn.

The present invention is an absorbent article having an absorbent body and end flaps extending longitudinally outward from longitudinal edges of the absorbent body,
The end flap has a fastening portion on the non-skin facing surface of the end flap,
The end flap has a bending tendency capable of bending part or all of the end flap toward the non-skin facing surface side and has a bending starting point portion extending in the lateral direction,
A part or the whole of the end flap is bent toward the non-skin facing side along the bending starting part, and the part or the whole of the bent end flap is attached to the shorts in a state of being fixed by the fastening part. To provide an absorbent article that is used after being worn.

ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which can reduce the discomfort in a wearing state is provided.

FIG. 1 is a perspective view showing one embodiment of the absorbent article of the present invention. FIG. 2 is a plan view schematically showing the skin-facing surface side (top sheet side) of the absorbent article shown in FIG. 1 in an unfolded and stretched state. FIG. 3 is a plan view schematically showing the non-skin-facing surface side (back sheet side) of the absorbent article shown in FIG. 1 in an unfolded and stretched state. FIG. 4 is a perspective view showing one usage example of the absorbent article shown in FIG. 5(a), 5(b), and 5(c) are diagrams showing modifications of the absorbent article of the present invention, in which the non-skin facing side (back sheet side) in the unfolded and stretched state is It is a top view shown typically. FIGS. 6(a), 6(b) and 6(c) are diagrams showing another embodiment of the absorbent article of the present invention, showing the non-skin facing surface side (back sheet side) in the unfolded and stretched state. ) is a schematic plan view. 7(a), 7(b), and 7(c) are diagrams showing another embodiment of the absorbent article of the present invention, showing the non-skin facing side (back sheet side) in the unfolded and stretched state. ) is a schematic plan view. FIG. 8 is a perspective view showing an embodiment of shorts to be used with the absorbent article of the present invention attached. It is a development view. FIGS. 9(a) and 9(b) are diagrams showing a usage example of the absorbent article of the present invention, and are enlarged diagrams showing a method of attaching the absorbent article to shorts. FIG. 10 is a perspective view showing another embodiment of shorts to which the absorbent article of the present invention is attached and used. It is a development view seen. FIG. 11 is a diagram showing a usage example of the absorbent article of the present invention, and is a perspective view of shorts to which the absorbent article is attached. Figs. 12(a) and 12(b) are diagrams showing a usage example of the absorbent article of the present invention, and are enlarged diagrams showing a method of attaching the absorbent article to shorts.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on its preferred embodiments with reference to the drawings. In addition, in the following description of the drawings, the same or similar reference numerals are given to the same or similar parts. The drawings are basically schematic, and the ratio of each dimension may differ from the actual one.

1 and 2 show one embodiment of the absorbent article of the present invention. The absorbent article 1 shown in these figures includes an abdominal portion F that is arranged on the abdomen of the wearer when worn, a dorsal portion R that is arranged on the dorsal side of the wearer, and an abdominal portion F and the dorsal side. It has a crotch part M located between the part R. The absorbent article 1 also has a longitudinal direction X extending from the abdominal part F to the dorsal part R via the crotch part M, and a lateral direction Y orthogonal to the longitudinal direction X. As shown in FIG.

The absorbent article 1 is formed symmetrically on one side and the other side with respect to the lateral center line CLy in the unfolded and stretched state as shown in FIG. The horizontal center line CLy is an imaginary straight line that extends in the vertical direction X and bisects the absorbent article 1 in the horizontal direction Y in the unfolded and stretched state.
The above-mentioned "unfolded and stretched state" means that the absorbent article is spread into a flat state to be in a stretched state, and the elastic members of each part of the absorbent article in the stretched state are stretched to the design dimensions (the influence of the elastic members is completely eliminated). It is the same as the dimension when it is spread flat in the state).

The absorbent article 1, as shown in FIG. and a backing sheet 3. A fixing portion (not shown) for fixing the absorbent article 1 to a wearable article such as underwear or a disposable diaper is provided on the outer surface of the backsheet 3, particularly the outer surface of the region of the backsheet 3 facing the absorbent body 4. may be provided. The absorbent article 1 also includes a pair of end flaps 6 , 6 extending longitudinally outward from respective edges in the longitudinal direction X of the absorbent body 4 .

The absorbent article 1 has a shape elongated in the longitudinal direction X in plan view, as shown in FIG. The topsheet 2 forms the skin-facing surface of the absorbent article 1 together with the sidesheets 51 described later, and the backsheet 3 forms the non-skin-facing surface of the absorbent article 1 . The members constituting the absorbent article 1 are joined to each other by known joining means such as fusion with an adhesive, heat treatment, ultrasonic treatment, or the like.
As the constituent members of the absorbent article 1, those commonly used in absorbent articles of this type can be used without particular limitation. As the surface sheet 2, various liquid-permeable sheets can be used, such as nonwoven fabric, woven fabric, and paper. As the back sheet 3, a sheet having a leakproof property, specifically, a liquid-impermeable (absolutely impermeable property of liquid) or a liquid-impermeable (although it cannot be said to be liquid-impermeable, it is difficult for liquid to pass through). properties), and examples thereof include a moisture-permeable resin film and a laminate of the resin film and a nonwoven fabric.

As used herein, the term "skin-facing surface" refers to the surface facing the wearer's skin when the absorbent article is worn, when focusing on the absorbent article or its constituent members (e.g., absorbent body). "Facing side" is the side facing away from the wearer's skin when the absorbent article is worn. That is, the skin-facing surface is the surface relatively close to the wearer's skin, and the non-skin-facing surface is the surface relatively far from the wearer's skin. In addition, "when worn" and "worn state" refer to a state in which the absorbent article is worn while maintaining an appropriate wearing position.

As shown in FIG. 2 , the absorbent body 4 extends over substantially the entire length of the absorbent article 1 in the longitudinal direction X, extending from the abdominal portion F to the dorsal portion R via the crotch portion M. As shown in FIG. The absorbent body 4 is incorporated into the absorbent article 1 and used by being indirectly applied to the human skin via the topsheet 2 or the like. The absorbent body 4 can be used by directly applying it to the skin without intervening a member such as a sheet, in addition to the form in which it is applied indirectly to the skin.

The absorbent body 4 has a liquid absorbent core (not shown). For the absorbent core, a hydrophilic fiber material such as a laminate of cellulosic fibers such as fluff pulp, or a mixed laminate of the hydrophilic fiber material and a superabsorbent polymer such as a hydrogel material can be used. . The absorbent core may be partially or wholly covered with a core wrap sheet (not shown) made of a liquid-permeable sheet such as paper or non-woven fabric. The absorbent core and the core wrap sheet may be joined with an adhesive such as a hot-melt adhesive.

The absorbent article 1 may have a pair of leak-proof cuffs 5, 5 arranged along both sides along the longitudinal direction X thereof. Each leak-proof cuff 5 includes a liquid-impermeable and breathable side sheet 51, as shown in FIG. One end of the side sheet 51 in the horizontal direction Y is fixed to another member (the back sheet 3 in the illustrated embodiment) to serve as a fixed end, and the other end in the horizontal direction Y is free to be unfixed to another member. considered to be the end. Elastic members 52 are fixed to the free ends of the side sheets 51 in a stretched state in the longitudinal direction X so as to be stretchable in the same direction. As the side sheet 51, a liquid-impermeable or liquid-impermeable sheet can be used.
When the absorbent article 1 is worn, the free end side of the leak-proof cuff 5 at least at the crotch portion M rises toward the wearer with the fixed end serving as the rising base end due to the contractile force of the elastic member 52 . . As a result, excretion such as urine is prevented from flowing out in the lateral direction Y.

The end flaps 6 are composed of end flap extending members extending outward in the longitudinal direction X from respective edges in the longitudinal direction X of the absorbent body 4 . The end flap extending member is composed of extending portions of the top sheet 2 and the back sheet 3 as shown in FIG. 2, for example. Therefore, the end flap 6 does not have the absorber 4 . A plurality of members forming the end flap 6 are joined together by a known joining means such as fusion bonding by an adhesive agent, heat treatment, ultrasonic treatment, or the like.

The end flaps 6 have fastening portions 7 used for fixing the absorbent article to a worn article such as shorts when the absorbent article is worn. As shown in FIG. 3 , the fastening portion 7 has, for example, a rectangular shape elongated in the horizontal direction Y, and extends substantially over the entire length in the horizontal direction Y on the non-skin facing surface of the end flap 6 . An outer edge 7A of the fastening portion 7 in the longitudinal direction X is located at a distance from an outer edge 6A of the end flap 6 in the longitudinal direction X. As shown in FIG. An inner edge 7</b>B of the fastening portion 7 in the vertical direction X is positioned outward in the vertical direction X from the edge of the absorbent body 4 . Both side edges 7C and 7D of the fastening portion 7 terminate inside the side edges 6C and 6D of the end flap 6 in the horizontal direction Y. As shown in FIG. By adopting such a form of the fastening portion 7, the end flaps 6 folded to the non-skin facing surface can be attached to the non-skin facing surface as shown in the method of using the absorbent article 1 shown in FIG. It is possible to securely fasten.

As the fastening portion 7, any structure that can fasten the folded end flap 6 to the back sheet 3 of the absorbent article 1 can be used, and any known structure can be used without particular limitation. As the fixing portion 7, for example, a male member or a female member of an adhesive or a hook-and-loop fastener can be used. When the fastening portion 7 is made of an adhesive, a release film for protecting the fastening portion 7 may be adhered.

The end flaps 6 have a folding tendency. The bending tendency is the property of the end flap 6 to easily bend in a certain direction spontaneously or by applying an external force. The end flap 6 has a bending tendency by having a bending starting portion 61 . In order to give the end flap 6 a bending tendency, for example, a perforation may be formed at the intended formation position of the bending start portion 61 in the end flap 6 or the thickness of the intended formation position may be reduced. In this embodiment, as shown in FIG. 3, perforations extending in the lateral direction Y are formed at the positions of the edges 4A of the absorbent body 4, and these perforations act as the bending starting points 61. As shown in FIG.

The bending starting point 61 is positioned at the edge 4A of the absorbent body 4 as described above. In other words, the bending starting point 61 is positioned at the boundary L1 between the end flap 6 and the absorbent body 4 . The presence of the folding starting point 61 at this position makes it difficult for the absorbent body 4 to be folded along with the folding of the end flap 6 toward the back sheet 3 as shown in FIG. 4 which will be described later. That is, the end flap 6 can be smoothly folded.

As shown in FIG. 3 , the fastening portion 7 is positioned outward in the longitudinal direction X from the bending starting portion 61 . That is, the fastening portion 7 is not arranged at a position overlapping the bending starting point portion 61 . Since the fastening portion 7 and the folding starting point portion 61 do not overlap each other, the fastening portion 7 is folded along with the folding of the end flap 6 toward the back sheet 3 as shown in FIG. 4 which will be described later. becomes less likely to occur. That is, the end flap 6 can be smoothly folded.
From the viewpoint of further exerting the above-described effects, the distance between the inner edge 7B of the fastening portion 7 in the longitudinal direction X and the bending starting portion 61 is preferably 3 mm or more, more preferably 5 mm or more, and preferably 30 mm. Below, more preferably 20 mm or less.

Next, how to use the absorbent article 1 shown in FIGS. 1 to 3 is as shown in FIG.
First, part or all of the end flaps 6 of the absorbent article 1 are folded along the folding start portions 61 toward the non-skin-facing side, that is, the back sheet 3 side. Next, the folded end flap 6 is joined to the member on the non-skin facing side opposite thereto, for example, the outer surface of the back sheet 3 or the non-skin facing surface of the end flap 6 via the fastening portion 7 . As a result, the end flap 6 is fixed to the non-skin-facing side as shown in FIG. In the absorbent article 1 in this state, the bending starting point 61 of the end flap 6 serves as the front edge and the rear edge of the absorbent article 1 . Therefore, when the absorbent article 1 in this state is attached to shorts, the front and rear edges 1A and 1B in the longitudinal direction X of the absorbent article 1 before the end flaps 6 are folded are positioned between the back sheet 3 and the shorts. , the edges are less likely to come into contact with the skin of the wearer. As a result, when the absorbent article 1 in the state shown in FIG. 4 is worn, the irritation to the skin caused by the front and rear edges of the absorbent article 1 is reduced, and the discomfort is reduced.

From the viewpoint of achieving the above effects more reliably, it is preferable to set the dimensions of each part as follows.
The length (width) of the fastening portion 7 in the vertical direction X is preferably 5 mm or more, more preferably 10 mm or more, and preferably 40 mm or less, more preferably 30 mm or less. If the width is not constant over the entire length of the fastening portion 7 in the lateral direction Y, the minimum width is preferably within the above range.
The length of the fastening portion 7 in the lateral direction Y is preferably 3 cm or more, more preferably 5 cm or more, and preferably 30 cm or less, more preferably 15 cm or less. If the length is not constant over the entire length of the fastening portion 7 in the vertical direction X, the minimum length is preferably within the above range.

FIGS. 5(a) to 5(c) show modifications of the absorbent article 1 shown in FIGS. 1 to 3. FIG. Regarding the absorbent article 1 shown in FIGS. 5(a) to 5(c), the different configuration from the absorbent article 1 shown in FIGS. , and description thereof is omitted. 5(a) to 5(c), the description of the absorbent article 1 shown in FIGS. 1 to 3 is appropriately applied to the configuration that is not particularly described. Also, with regard to the absorbent article 1 shown in FIGS. 5(a) to 5(c), the ventral portion F will be described, but unless otherwise specified, the ventral portion F will also be described in the dorsal portion R. Applied as appropriate.

In the absorbent article 1 shown in FIG. 5(a), the folding starting point 61 is positioned between the boundary L1 between the end flap 6 and the absorbent body 4 and the outer edge 6A of the end flap 6 in the longitudinal direction X. are doing. The bending starting point 61 is located at a distance from the boundary L1 and at a distance from the inner edge 7B of the fastening portion 7 in the longitudinal direction X. As shown in FIG. As a result, the bending starting point 61 does not overlap with the outer edge 4A of the absorber 4 in the longitudinal direction X, and the inner edge 7B of the fastening portion 7 in the longitudinal direction X is located further than the bending starting point 61. It is positioned outside in the vertical direction X. In other words, the bending starting portion 61 and the absorbent body 4 do not overlap each other, and the fastening portion 7 does not overlap either. With such an arrangement relationship, the end flaps 6 can be smoothly folded.

In the absorbent article 1 shown in FIG. 5(b), a hook-and-loop fastener is employed as the fastening portion 7. As shown in FIG. “Velcro fastener” consists of a surface member (male member) with a hook material (engagement member) consisting of hook-like protrusions arranged on one side, and a surface member with a loop material consisting of pile-shaped protrusions arranged on one side (Female member) means a set of fasteners. In this embodiment, the fastening portion 7 is provided with a male member of a hook-and-loop fastener. Further, on the outer surface of the backsheet 3, the female member 7b of the hook-and-loop fastener is arranged at a position facing the male member when the end flap 6 is folded along the folding starting portion 61. As shown in FIG. When the outer surface of the backsheet 3 has the same function as the female member of the hook-and-loop fastener, for example, when the outer surface of the backsheet 3 is in a state that can be engaged with the hook material, the female member 7b is attached to the back surface. It does not need to be arranged on the outer surface of the seat 3.

The absorbent article 1 shown in FIG. 5(c) has a plurality of absorbent bodies 4. As shown in FIG. A plurality of absorbers 4 are arranged in the vertical direction X with a distance therebetween. Although the size and shape of each absorbent body 4 are the same, the size and shape of each absorbent body are not limited to this, and may be different from each other. Since the plurality of absorbent bodies 4 are arranged at intervals in the longitudinal direction X, the absorbent article 1 of the present embodiment has high flexibility and easily fits the wearer's body in the wearing state. .
In this embodiment, the absorber 4 is arranged so as to face the fastening portion 7 when the end flap 6 is folded along the folding starting portion 61 . It is preferable from the viewpoint that it becomes easy to fix to the outer surface of.

6(a) to 6(c) and 7(a) to 7(c) show another embodiment of the absorbent article 1 of the present invention. With regard to the embodiment of the absorbent article 1 shown in these figures, the configuration different from that of the absorbent article 1 shown in FIGS. explanation is omitted. Also, the description of the absorbent article 1 shown in FIGS. 1 to 3 appropriately applies to the configuration not particularly described in the embodiment of the absorbent article 1 shown in these figures. Further, the embodiment of the absorbent article 1 shown in these figures will be described with respect to the ventral portion F, but the description of the ventral portion F also applies to the dorsal portion R as appropriate unless otherwise specified.

In the absorbent article 1 shown in FIG. 6(a), the end flaps 6 are composed of a first portion 6a and a second portion 6b. The first portion 6a is rectangular. The second portion 6b is trapezoidal. The first portion 6a and the second portion 6b are connected to each other, and the second portion 6b is located on the outer side in the longitudinal direction X. As shown in FIG. The first portion 6a is located on the side closer to the absorbent body 4. As shown in FIG.
The rectangular first portion 6a has long sides extending in the horizontal direction Y and short sides extending in the vertical direction X. As shown in FIG. The length of the long side of the first portion 6a is the same as the width of the portion of the absorbent article 1 where the absorbent body 4 is located.
The short sides of the second part 6b forming the trapezoid are shared with the long sides of the first part 6a, and the length of the short sides of the second part 6b is the same as the length of the long sides of the first part 6a. there is The long side of the second portion 6b forms the edge 1A of the absorbent article 1. As shown in FIG. Therefore, while the width of the first portion 6a (that is, the length in the lateral direction Y) is constant, the width of the second portion 6b gradually increases outward in the longitudinal direction X of the absorbent article 1. are doing.
A bending starting portion 61 of the end flap 6 is positioned at the boundary between the first portion 6a and the second portion 6b. In other words, the bending starting portion 61 of the end flap 6 is located at the position where the width of the end flap 6 changes for the first time when the end flap 6 is viewed along the longitudinal direction X from the inner side to the outer side. The fastening portion 7 is positioned on the second portion 6 b that is spaced outward in the longitudinal direction X from the bending starting portion 61 . By placing the bending starting point 61 at this position, the bending tendency of the end flap 6 becomes even more pronounced, and the end flap 6 becomes even easier to bend.

In the absorbent article 1 shown in FIG. 6(b), the end flaps 6 are composed of a first portion 6a and a second portion 6b. The first portion 6a is rectangular. The second portion 6b has a flat hexagonal shape.
The first portion 6a and the second portion 6b are connected in this order, with the second portion 6b positioned outward in the longitudinal direction X and the first portion 6a positioned inward in the longitudinal direction X. there is The first portion 6a is located on the side closest to the absorbent body 4. As shown in FIG.
The rectangular first portion 6a has long sides extending in the horizontal direction Y and short sides extending in the vertical direction X. As shown in FIG. The length of the long side of the first portion 6a is the same as the width of the portion of the absorbent article 1 where the absorbent body 4 is located.
The flat hexagonal second portion 6b connects a pair of side sides 61B and 61B extending in the vertical direction X, a pair of edge sides 62B and 62C extending in the horizontal direction Y, and the side edge 61B and the edge edge 62C. It has a pair of oblique sides 63B, 63B. A pair of sides 61B, 61B are parallel to each other and have the same length. A pair of edge sides 62B and 62C are parallel to each other. The edge 62B is longer than the edge 62C.

A part of the end side 62B of the second portion 6b is shared with the long side of the first portion 6a. The length of the end side 62B in the second portion 6b is longer than the length of the long side in the first portion 6a. An edge 62C located on the outer side in the longitudinal direction X of the second portion 6b forms an edge 1A of the absorbent article 1. As shown in FIG.

When the end flap 6 consisting of the first portion 6a and the second portion 6b is viewed as a whole, the width of the end flap 6 changes at the boundary between the first portion 6a and the second portion 6b. A bending starting portion 61 is positioned at this boundary. In other words, the bending starting portion 61 of the end flap 6 is located at a position where the width of the end flap 6 changes for the first time when the end flap 6 is viewed along the longitudinal direction X from the inside to the outside.
The fastening portion 7 is positioned on the second portion 6 b that is spaced outward in the longitudinal direction X from the bending starting portion 61 . By placing the bending starting point 61 at this position, the bending tendency of the end flap 6 becomes even more pronounced, and the end flap 6 becomes even easier to bend.

In the absorbent article 1 shown in FIG. 6(c), the absorbent article 1 shown in FIG. It has a portion 6c. The third portion 6c is rectangular. The third portion 6c has a long side extending in the horizontal direction Y and a short side extending in the vertical direction X. As shown in FIG.
The first portion 6a, the second portion 6b, and the third portion 6c are connected in this order, with the third portion 6c positioned most outward in the longitudinal direction X and the first portion 6c positioned most inwardly in the longitudinal direction X. A portion 6a is located. The second portion 6b is positioned between the first portion 6a and the third portion 6c. The first portion 6a is located on the side closest to the absorbent body 4. As shown in FIG.

62 C of edge sides in the 2nd site|part 6b are shared with the long side in the 3rd site|part 6c. The length of the end side 62C in the second portion 6b is the same as the length of the long side in the third portion 6c. The long side positioned on the outer side in the longitudinal direction X of the third portion 6c forms the edge 1A of the absorbent article 1. As shown in FIG.

When the end flap 6 consisting of the first part 6a, the second part 6b and the third part 6c is viewed as a whole, the width of the end flap 6 changes at the boundary between the first part 6a and the second part 6b. . A bending starting portion 61 is positioned at this boundary. In other words, the bending starting portion 61 of the end flap 6 is located at a position where the width of the end flap 6 changes for the first time when the end flap 6 is viewed along the longitudinal direction X from the inside to the outside.
The fastening portion 7 is positioned on the third portion 6 c that is spaced outward in the longitudinal direction X from the bending starting portion 61 . By placing the bending starting point 61 at this position, the bending tendency of the end flap 6 becomes even more pronounced, and the end flap 6 becomes even easier to bend.

In the absorbent article 1 shown in FIG. 7(a), the end flaps 6 are composed of a first portion 6a and a second portion 6b. Both the first portion 6a and the second portion 6b are flat hexagons.
The first portion 6a and the second portion 6b are connected in this order, with the second portion 6b positioned outward in the longitudinal direction X and the first portion 6a positioned inward in the longitudinal direction X. there is The first portion 6a is located on the side closest to the absorbent body 4. As shown in FIG.
The first portion 6a includes a pair of side sides 61A and 61A extending in the vertical direction X, a pair of edge sides 62A and 64A extending in the horizontal direction Y, and a pair of oblique sides 63A connecting the side edge 61A and the edge edge 64A. 63A. A pair of side edges 61A, 61A are parallel to each other and have the same length. A pair of edge sides 62A and 64A are parallel to each other. The edge 62A is longer than the edge 64A. The length of the edge 62A of the first portion 6a is the same as the width of the portion of the absorbent article 1 where the absorbent core 4 is located.
On the other hand, the second portion 6b includes a pair of side sides 61B and 61B extending in the vertical direction X, a pair of edge sides 62B and 64B extending in the horizontal direction Y, and a pair of oblique sides connecting the side edge 61B and the edge edge 64B. 63B, 63B. A pair of sides 61B, 61B are parallel to each other and have the same length. A pair of edge sides 62B and 64B are parallel to each other. The edge 62B is longer than the edge 64B.
The edge 62A of the first portion 6a and the edge 62B of the second portion 6b have the same length.

The edge 64B of the second portion 6b is shared with the edge 64A of the first portion 6a. The edge 64B and the edge 64A have the same length. An edge 62B located on the outer side in the longitudinal direction X of the second portion 6b forms an edge 1A of the absorbent article 1. As shown in FIG.

When the end flap 6 consisting of the first portion 6a and the second portion 6b is viewed as a whole, the portions of the first portion 6a where the sides 61A and 61A are present have a constant width, and the oblique sides 63A and 63A are The width of the existing portion gradually decreases outward in the longitudinal direction X. As shown in FIG. A bending starting portion 61 is positioned at the boundary between the first portion 6a and the second portion 6b. In other words, when the end flap 6 is viewed from the inside to the outside in the longitudinal direction X, the bending starting point 61 of the end flap 6 is located at the position where the width of the end flap 6 changes for the first time in the longitudinal direction X. on the outside of
The fastening portion 7 is positioned on the second portion 6 b that is spaced outward in the longitudinal direction X from the bending starting portion 61 . By placing the bending starting point 61 at this position, the bending tendency of the end flap 6 becomes even more pronounced, and the end flap 6 becomes even easier to bend.

The absorbent article 1 shown in FIG. 7(b) has a pair of projecting portions 8, 8 projecting outward in the lateral direction Y from end regions in the longitudinal direction X of the absorbent body 4. As shown in FIG. The overhanging portion 8 can be configured, for example, by laminating a top sheet extending outward from the side edge 4S of the absorbent body 4 and a back sheet. The projecting portion 8 has a semi-elliptical shape along the major axis of the ellipse. A part of the projecting portion 8 extends outward in the longitudinal direction X beyond the edge 4A of the absorbent body 4 . A portion of the projecting portion 8 extending outward in the longitudinal direction X beyond the edge 4A of the absorbent body 4 constitutes a part of the end flap 6. As shown in FIG. Hereinafter, the portion of the projecting portion 8 that extends outward in the longitudinal direction X beyond the edge 4A of the absorbent body 4 is also referred to as the first portion 6a.
The end flap 6 also has a second portion 6b connected to the first portion 6a. The second portion 6b is rectangular. The first portion 6a and the second portion 6b are connected in this order, with the second portion 6b positioned outward in the longitudinal direction X and the first portion 6a positioned inward in the longitudinal direction X. there is
The rectangular second portion 6b has long sides extending in the horizontal direction Y and short sides extending in the vertical direction X. As shown in FIG. The length of the long side of the second portion 6b matches the length of the outer edge in the longitudinal direction X of the first portion 6a, and the edge is shared with the long side of the second portion 6b. there is

The end flap 6 consisting of the first part 6a and the second part 6b has an edge 4A of the absorber 4 and the first part 6a when the end flap 6 is viewed from the inside to the outside in the longitudinal direction X. The width of the end flap 6 changes for the first time at the boundary L1 between and. Further, the bending starting point 61 is positioned outside in the vertical direction X from the position of this boundary L1. Specifically, the bending starting portion 61 is positioned at the boundary between the first portion 6a and the second portion 6b.
The fastening portion 7 is positioned on the second portion 6b at a distance from the bending starting portion 61 . By placing the bending starting point 61 at this position, the bending tendency of the end flap 6 becomes even more pronounced, and the end flap 6 becomes even easier to bend.

In the absorbent article 1 shown in FIG. 7(c), the absorbent article 1 shown in FIG. 7(b) is formed by the long side located on the outer side in the longitudinal direction X of the second portion 6b and each short side. It has a shape in which a pair of corners are cut off in a triangular shape (that is, a flat hexagonal shape). Other than this, it is the same as the absorbent article 1 shown in FIG. 7(b).

The absorbent article 1 of each of the above embodiments is preferably worn on underwear such as shorts or disposable diapers, and used to absorb body fluids (urine, loose stool, menstrual blood, sweat, etc.) excreted from the human body. . An example of a method of using the absorbent article 1 of the embodiment described above while wearing shorts will be described below.

As shown in FIG. 8 , the shorts 10 have a front body 11 , a back body 12 and a crotch portion 13 . The shorts 10 have a longitudinal direction X extending from the front body 11 to the back body 12 via the crotch portion 13 and a lateral direction Y orthogonal to the longitudinal direction X. As shown in FIG.

In the shorts 10, slit-like attachment portions 14 for attaching an absorbent article are arranged on the skin-facing surfaces of the front body 11 and the back body 12, respectively. The slit-shaped mounting portion 14 has an outer edge 14A in the longitudinal direction X and an inner edge 14B in the longitudinal direction X, both of which are straight and parallel. Further, both side edges 14C and 14D of the slit-shaped mounting portion 14 in the horizontal direction Y are straight and parallel. Further, an outer edge 14A of the slit-like attachment portion 14 in the longitudinal direction X is located at a distance from the outer edge 11A of the front body 11 in the longitudinal direction X. As shown in FIG. In addition, an inner edge 14B of the slit-like attachment portion 14 in the longitudinal direction X is located at a distance from the boundary L3 between the front body 11 and the crotch portion 13. As shown in FIG. Furthermore, both side edges 14C and 14D of the slit-like attachment portion 14 in the horizontal direction Y are located at a distance from the side edges of the front body 11. As shown in FIG.

Two slits 15 extending in the horizontal direction Y are provided in the slit-like mounting portion 14 . The slit-shaped attachment portion 14 is joined to the front body 11 and the back body 12 at regions outside the slit 15 in the lateral direction Y, respectively. In addition, the slit-like attachment portion 14 is not joined to the front body 11 and the back body 12 in the regions between the adjacent slits 15a and 15b. Furthermore, the slit-shaped attachment portion 14 has a front and rear portion in the longitudinal direction X (that is, a portion including the outer edge 14A and the inner edge 14B) of the slits 15a and 15b that are different from the front body 11 and the back body 12, respectively. It is joined.

The absorbent article 1 of each embodiment described above is used so that the end flaps 6 are inserted through the slits 15a and 15b as shown in FIGS. 9(a) and 9(b). Specifically, as shown in FIG. 9A, the end flap 6 is folded toward the non-skin-facing side along the folding starting point 61, and the folded end flap 6 is inserted through the slit 15a. Then, as shown in FIG. 9(a), the fastening portion 7 of the inserted end flap 6 is exposed from the slit 15b, and the exposed fastening portion 7 is fastened to the end flap 6 facing the end flap 6. The article 1 is secured to the shorts. By adopting such a method of use, irritation caused by contact of the edge 1A in the longitudinal direction X of the absorbent article 1 with the wearer's skin and discomfort caused by this are reduced. In addition, the slits 15a and 15b serve as guides for attaching the absorbent article 1 to the shorts 10, so that the absorbent article 1 can be easily attached to the shorts 10 at an appropriate position. When adopting this embodiment, a fixing portion for fixing the absorbent article 1 to a wearable article such as underwear or a disposable diaper is provided on the outer surface of the region of the backsheet 3 facing the absorbent body 4. (This also applies to the embodiment shown in FIG. 10 below.).

Also, the absorbent article 1 of each embodiment described above may be used by being attached to the shorts 10 of the embodiment shown in FIG. 8 by a method different from the method of use described above. Specifically, the end flap 6 is folded toward the non-skin facing side along the folding starting point 61, the folded end flap 6 is inserted into the slit 15a, and the fastening portion 7 of the inserted end flap 6 is The absorbent article 1 may be fixed to the shorts 10 by attaching the absorbent article 1 to the non-skin-facing surface of the region 14a between the slits 15a and 15b that are not joined to the shorts 10 in the slit-like attachment portion 14. As yet another method of use, the folded end flap 6 is inserted through the slit 15a, and the fastening portion 7 of the inserted end flap 6 is placed between the non-skin-facing surface of the region 14a between the slits 15a and 15b and the slit 15b. The absorbent article 1 may be fixed to the shorts 10 by attaching it to both the non-skin facing surface of the end flaps 6 exposed from the inner side. These methods of use also have the same effect as the method of use shown in FIG. As shown in FIG. 5(b), when a male member of a hook-and-loop fastener is employed as the fastening portion 7, for example, the non-skin-facing surface of the slit-shaped attachment portion 14 can be engaged with the hook member of the male member. material can be used.

The shorts 10 shown in FIG. 10 each have strip-shaped attachment portions 16 for attaching the absorbent article 1 to the skin-facing surfaces of the front body 11 and the back body 12 . The strip-shaped attachment portion 16 is fixed to the inner surface of the shorts 10 at side regions 16a, 16a in the lateral direction Y, and the region between the side regions 16a, 16a is in a non-bonded state with the shorts 10. As shown in FIG.
As the strip-like attachment portion 16, a string-like member, a strip-like member made of cloth, or an elastic body can be adopted.

The absorbent article 1 of each embodiment described above is used so that the end flaps 6 are inserted through the band-shaped attachment portions 16 as shown in FIG. 11 . Specifically, the end flap 6 is folded toward the non-skin-facing surface along the folding starting point 61, and the folded end flap 6 is inserted between the side regions 16a, 16a of the belt-shaped attachment portion 16, and is inserted therethrough. The absorbent article 1 is fixed to the shorts by fastening the fastening portions 7 of the end flaps 6 to the opposing end flaps 6 . This embodiment also provides the same effects as the embodiment shown in FIG.

In the embodiment shown in FIG. 10, one band-shaped attachment portion 16 is provided on each of the skin facing surfaces of the front body 11 and the back body 12, but two or more band-shaped attachment portions 16 may be provided. . When one belt-shaped attachment part 16 is arranged, the absorbent article 1 of one size corresponds to the shorts 10 of one size, and when the wearer attaches the absorbent article 1 to the shorts 10, the size of the shorts 10 is adjusted. There is an advantage that you can choose without hesitation. On the other hand, when a plurality of band-shaped attachment portions 16 are arranged, it is possible to attach absorbent articles 1 of different sizes to shorts 10 of one size.

In the absorbent article 1 of each of the above embodiments, the fastening portion is arranged on the non-skin-facing surface of the end flap 6, and the end flap 6 is folded toward the non-skin-facing surface during use, so that the end flap 6 is attached to the non-skin-facing surface. Although it is fixed to the facing surface, instead of that, as shown in FIG. 12(a), the fastening part 7 is arranged on the skin facing surface of the end flap 6, and when it is used, it is folded as shown in FIG. 12(b). A part or all of the end flaps 6 may be bent toward the non-skin facing side along the starting point 61 and the fastening portions 7 facing the non-skin facing side may be fastened to the inner surface of the shorts 10 . The fastening portion 7 may extend along substantially the entire length in the lateral direction Y at a position not overlapping the bending starting portion 61 on the skin-facing surface of the end flap 6 . This embodiment also has the effect of reducing the irritation caused by the contact of the edge 1A in the longitudinal direction X of the absorbent article 1 with the wearer's skin and the discomfort caused by this.

Although the present invention has been described above based on its preferred embodiments, the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the scope of the present invention.
For example, in the embodiment shown in FIGS. 1 to 7, one fastening portion 7 extends along the lateral direction Y of the end flap 6, but instead of this, the lateral direction Y of the end flap 6 , and two or more fastening parts 7 may be arranged at a distance in the vertical direction X. As a result, fingers can be easily passed through the regions between the fastening portions 7 adjacent in the longitudinal direction X, thereby facilitating removal of the absorbent article 1 from undergarments such as shorts after the absorbent article 1 is used. becomes possible.
In addition, in the embodiment shown in FIGS. 1 to 7, perforations are formed as the bending starting portion 61, but in that case, printing as a folding mark may be superimposed on the perforations. . Accordingly, when attaching the absorbent article 1 to underwear such as shorts or a disposable diaper, the wearer can easily recognize the position of the bending starting point 61 .

1 Absorbent Article 2 Top Sheet 3 Back Sheet 4 Absorber 6 End Flap 7 Fastening Part 10 Shorts

Claims (9)

An absorbent article having an absorbent body and end flaps extending longitudinally outward from longitudinal edges of the absorbent body,
The end flap has a fastening portion on the non-skin facing surface of the end flap,
The end flap has a bending tendency capable of bending part or all of the end flap toward the non-skin facing surface side and has a bending starting point portion extending in the lateral direction,
A part or the whole of the end flap is bent toward the non-skin facing side along the bending starting part, and the part or the whole of the bent end flap is attached to the shorts in a state of being fixed by the fastening part. An absorbent article for use. An absorbent article having an absorbent body and end flaps extending longitudinally outward from longitudinal edges of the absorbent body,
The end flap has a fastening portion on the skin-facing surface of the end flap,
The end flap has a bending tendency capable of bending part or all of the end flap toward the non-skin facing surface side and has a bending starting point portion extending in the lateral direction,
Part or all of the end flap is folded along the bending starting point toward the non-skin-facing surface so that the fastening portion faces the non-skin-facing surface, and the fastening portion faces the non-skin-facing surface. An absorbent article that is used to interface with the inner surface of shorts. The bending starting point is provided at the boundary between the end flap and the absorbent body, or the bending starting point is provided between the boundary between the end flap and the absorbent body and the outer edge of the end flap in the longitudinal direction. 3. The absorbent article according to claim 1 or 2, having therebetween. 4. The absorbent article according to claim 3, wherein said folding starting portion is provided between said end flap and said absorber, and a longitudinal outer edge of said end flap. When the end flap is viewed from the inner side to the outer side in the longitudinal direction, the bending starting portion is provided at a position where the width of the end flap changes for the first time or at a position longitudinally outward from the position. , The absorbent article according to claim 1 or 2. 6. The absorbent article according to any one of claims 1 to 5, wherein the fastening portion is positioned outward in the vertical direction from the bending starting portion. 7. The end flap according to any one of claims 1 to 6, wherein when the end flap is viewed in the longitudinal direction, the width of the end flap on the outer side of the bending starting portion is narrower than the width on the inner side thereof. An absorbent article according to any one of the preceding claims. Having a front body, a back body and a crotch part,
Each of the front body and the back body has a slit-shaped attachment part for attaching an absorbent article to the skin facing surface,
At least two slits extending in the lateral direction are provided in each of the slit-shaped mounting portions,
Each of the slit-shaped attachment portions is joined to the front body and the back body in a laterally outward region of the slit,
Each of the slit-shaped attachment portions has a region between two longitudinally adjacent slits that are not joined to the front body and the back body, respectively,
Shorts used so that the end flaps in the absorbent article according to any one of claims 1 to 7 are inserted through the slits. Having a front body, a back body and a crotch part,
Each of the front body and the back body has a belt-like attachment part for attaching an absorbent article to the skin facing surface,
Both side edges of each belt-shaped attachment portion are joined to the front body and the back body, respectively,
Each belt-shaped attachment portion has a laterally inner region than the side edges, and is not joined to the front body and the back body, respectively,
Shorts used in such a manner that the end flaps in the absorbent article according to any one of claims 1 to 7 are inserted into the unbonded regions of the belt-like attachment portions.