JP2023028188A - absorbent article - Google Patents

Abstract

To provide an absorbent article making fastening materials hardly stick each other, and having excellent peeling operability.SOLUTION: An absorbent article comprises a front surface sheet, a rear surface sheet and an absorber, and the rear surface sheet has a fastening area including a plurality of fastening materials extending in the lateral direction and intermittently arranged in the longitudinal direction. A part of the plurality of fastening materials composes a first aggregate positioned at least in one of a front-end part area and a rear-end part area of the fastening area and comprising the plurality of fastening materials. The plurality of fastening materials composing the first aggregate are divided into a plurality of first fastening materials not overlapped on the absorber and second fastening materials overlapped on the longitudinal direction end part area of the absorber in a plane view. In the first aggregate, the plurality of first fastening materials are arranged so that the adhesive force is increased in the order of being positioned from the longitudinal direction end part of the absorbent article to the inside, and the second fastening material has an adhesive force higher than that of the first fastening material.SELECTED DRAWING: Figure 3

Description

The present invention relates to absorbent articles such as pantiliners.

The absorbent article is constructed by disposing an absorbent body between a topsheet and a backsheet. Absorbent articles are provided with a plurality of fastening materials on the back sheet to be fixed to underwear in order to prevent the product from slipping or the like when worn (see, for example, Patent Document 1).
In general, absorbent articles are folded together with a packaging sheet and stored in the form of individual packages. When the absorbent article is taken out from the individual package, the fastening materials may adhere to each other. In addition, when the absorbent article is to be replaced and the absorbent article is peeled off from the underwear, the fastening materials adhere to each other, and the absorbent article cannot be neatly rolled up after use, making it difficult to dispose of it. there were.

Japanese Patent Application Laid-Open No. 2020-68886

There is a demand for an absorbent article with good peeling operability in which fastening materials are less likely to adhere to each other when the absorbent article is taken out of an individual package or peeled off from undergarments.

SUMMARY OF THE INVENTION An object of the present invention is to provide an absorbent article in which fastening materials are less likely to adhere to each other and which has good peeling operability.

An absorbent article according to one aspect of the present invention includes a topsheet, a backsheet, and an absorbent body disposed between the topsheet and the backsheet, and has a longitudinal direction corresponding to the front-rear direction of the wearer. It has a direction and a lateral direction orthogonal to the longitudinal direction, and is divided along the longitudinal direction into a front region, a middle region facing the wearer's excretory part, and a rear region.
The absorbent article has, on the backsheet, a fastening region including a plurality of fastening members extending in the lateral direction and intermittently arranged in the longitudinal direction.
Some of the plurality of fastening materials form a first aggregate formed of the plurality of fastening materials located in at least one of the front end region and the rear end region of the fastening region.
The plurality of fastening members constituting the first aggregate are, in plan view, a plurality of first fastening members that do not overlap the absorbent body, and second fastening members that overlap the longitudinal end regions of the absorbent body. It is divided into material and.
In the first assembly, the plurality of first fastening materials are arranged such that their adhesive strength increases in order from the longitudinal end of the absorbent article toward the inside, and The second fastening material has a higher adhesive strength than the first fastening material.

As described above, according to the absorbent article of the present invention, it is difficult for the fastening materials to adhere to each other during the peeling operation, and the peeling operability is good.

Fig. 10 is a plan view of the individual package of the absorbent article folded at the folding section together with the package sheet, which is opened and unfolded and viewed from the surface sheet side. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1; FIG. 2 is a plan view of the absorbent article as seen from the backsheet side, showing the configuration of fastening materials arranged on the backsheet, and showing the positional relationship between the absorbent body and the fastening materials. FIG. 4 is a partial plan view of the absorbent article for explaining the structure of the fastening material;

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, a panty liner will be described as an example of an absorbent article. A panty liner is generally attached to the inner surface of the crotch portion of underwear such as shorts from the late menstrual period when the amount of menstrual blood is low to the non-menstrual period, and is used to absorb body fluids such as vaginal discharge, menstrual blood, and urine. be done.

As shown in FIG. 1, the panty liner 1 is typically folded with the packaging sheet 7 disposed on the side of the back sheet 3, which will be described later, and the folding portion extending in the lateral direction Y, which will be described later, is used as a base point for folding. , are stored in individual packaging. The individually wrapped panty liner 1 is referred to as an individually wrapped body 10 .
The panty liner 1 is used by peeling off the packaging sheet 7 from the individual package 10.例文帳に追加

<Overall configuration of panty liner>
As shown in FIG. 1, the panty liner 1 as an absorbent article of the present invention has a longitudinal direction X corresponding to the front-rear direction of the wearer and a lateral direction Y corresponding to the left-right direction of the wearer and orthogonal to the longitudinal direction X. and a thickness direction Z perpendicular to the longitudinal direction X and the lateral direction Y. The lateral direction of the panty liner 1 corresponds to the width direction of the panty liner 1 .
In this specification, regarding the thickness direction Z of the panty liner 1, the side close to the wearer's skin when worn is sometimes referred to as the upper side or the skin side, and the side closer to the underwear is referred to as the lower side or the non-skin side. In this specification, the "skin side" refers to the side of the panty liner or its constituent members that faces the wearer's skin when the panty liner is worn, that is, the side that is relatively close to the wearer's skin. The "non-skin side" is the side of the pantiliner or component thereof that faces away from the wearer's skin when the pantiliner is worn.
In this specification, the term “longitudinal direction X outside” means the side away from the horizontal center line CLy that bisects the panty liner 1 in the vertical direction X, and the term “longitudinal direction X inside” means the side away from the horizontal center line CLy. means the side approaching the "Longitudinal X forward" or "forward" means forward in the longitudinal direction X, ie, toward the abdomen of the wearer. Similarly, "longitudinal X rearward" or "rearward" means backward in the longitudinal direction X, ie, toward the back of the wearer.
In this specification, the term “lateral direction Y inner side” means the side approaching the longitudinal center line CLx that bisects the panty liner 1 in the lateral direction Y, and the term “lateral direction Y outer side” refers to the longitudinal center line CLx. means the side away from
As used herein, the term "when worn" means a state in which the absorbent article is maintained in a normal, proper wearing position, ie, a correct wearing position of the absorbent article.
In addition, in this specification, “planar view” means planar view seen from the thickness direction Z. As shown in FIG.

The panty liner 1 is divided along the longitudinal direction X into a front region F, a middle region C, and a rear region R.
The intermediate region C is a region facing the wearer's excretory part when worn. When the absorbent article is a panty liner, the "excretion part" means the vaginal opening.
The front region F is a region arranged in front of the middle region C in the longitudinal direction X (wearer's ventral side), and is arranged so as to face the front of the wearer's excretory part when worn.
The rear region R is a region arranged behind the intermediate region C in the longitudinal direction X (the wearer's back side), and is arranged so as to face the wearer's excretory part rearward when worn.
In the pantiliner 1, the front region F, the middle region C and the rear region R correspond to regions when the pantiliner 1 is divided into three equal parts in the longitudinal direction X. As shown in FIG.

As shown in FIG. 1, the panty liner 1 has a front end portion 1F positioned forward in the longitudinal direction X, a rear end portion 1R positioned rearward in the longitudinal direction X, and side edge portions 1S, 1S positioned on the left and right sides in the lateral direction Y. and have

In the panty liner 1, the dimension in the lateral direction Y gradually increases from the lateral center line CLy toward the longitudinal direction X outward, and then decreases continuously near the front end 1F and the rear end 1R. It has an external shape. The panty liner 1 has a substantially rectangular shape with rounded corners.

As shown in FIG. 2, the panty liner 1 comprises an absorbent body 4, a topsheet 2, a backsheet 3, a second sheet 5, and a fastening material 6. As shown in FIG.
The topsheet 2 constitutes the skin side 1a of the panty liner 1. - 特許庁
The backsheet 3 constitutes the non-skin side 1b of the panty liner 1. - 特許庁
The fastening material 6 is provided on the non-skin side 1 b of the panty liner 1 , that is, on the non-skin side of the backsheet 3 . The panty liner 1 is fixed to the inner surface of the wearer's underwear by a fastening material 6 when worn.

The panty liner 1 has a structure in which a back sheet 3, an absorbent body 4, a second sheet 5 and a top sheet 2 are laminated in the thickness direction Z. As shown in FIG. These structures are appropriately joined, for example, by joining with an adhesive, heat sealing, or the like, or by embossing with compressed grooves, or the like.
In the panty liner 1, the top sheet 2, the second sheet 5 and the back sheet 3 have the same size and shape, and they overlap in plan view to form the outer shape of the panty liner 1. As shown in FIG.

As shown in FIG. 1, the panty liner 1 has a symmetrical shape about the horizontal center line CLy, and a symmetrical shape about the vertical center line CLx. Either of the longitudinal X ends of the panty liner 1 may face forward when worn.
In this specification, the pantiliner 1 and each component constituting the pantiliner 1 are described using the terms "front" and "rear" for convenience. , can become the front end when worn.

<Structure of individual package>
As shown in FIG. 1, the individual package 10 has a panty liner 1 and a packaging sheet 7. As shown in FIG.
The packaging sheet 7 is a sheet-shaped exterior material that forms the outer surface of the individual package 10 . In the example shown in FIG. 1 , the packaging sheet 7 is configured in a rectangular shape elongated in the longitudinal direction X when viewed from the thickness direction Z in a plan view.
The packaging sheet 7 has a front end portion 7F positioned forward in the longitudinal direction X, a rear end portion 7R positioned rearward in the longitudinal direction X, and both side edges 7S, 7S positioned on the left and right sides in the lateral direction Y.
As the packaging sheet 7, various kinds of materials conventionally used as packaging sheets for absorbent articles can be used without particular limitation, and for example, resin films, non-woven fabrics, paper and the like can be used. Such a packaging sheet 7 has lower rigidity than the absorber forming the panty liner 1, and can be easily folded into a shape along the panty liner.

The process of folding the panty liner together with the wrapping sheet will be described below.
First, as shown in FIG. 1 , the panty liner 1 is arranged on the rectangular packaging sheet 7 at substantially the center of the packaging sheet 7 via the fastening material 6 so that the panty liner 1 can be peeled off. Thus, a laminate of the panty liner 1 and the packaging sheet 7 is obtained.
As shown in FIG. 1, the front end 1F of the panty liner 1 protrudes from the front end 7F of the packaging sheet 7 when the individual package 10 is unfolded. The rear end portion 1R of the panty liner 1 is located inside the rear end portion 7R of the packaging sheet 7 in the longitudinal direction X, and the rear end portion 7R of the packaging sheet 7 protrudes from the rear end portion 1R of the panty liner 1. ing.

Here, an example in which the individual package 10 is folded in the vertical direction X by two linear folding portions L1 and L2 extending in the horizontal direction Y is taken. The first folding portion L1 and the second folding portion L2 serve as folding axes when the individual package 10 is folded.
The first folded portion L1 is located near the front end portion 7F of the packaging sheet 7, and the second folded portion L2 is located near the rear end portion 7R of the packaging sheet 7.
In the individual package 10 of the present embodiment, the first folded portion L1 is formed by one of the two virtual lines dividing the panty liner 1 into three equal parts in the longitudinal direction X (the front area F and the middle area C). corresponding to the boundary). The second folded portion L2 is located outside the other imaginary line (corresponding to the boundary between the intermediate region C and the rear region R) in the longitudinal direction X.
In the individual package 10, the area ahead of the first folded part L1 is called a first folded area 81, the area between the first folded part L1 and the second folded part L2 is called a second folded area 82, and the A region behind the second folding portion L2 is called a third folding region 83. As shown in FIG.

As shown in FIG. 1, in order to fold the individual package 10, first, the laminate of the panty liner 1 and the packaging sheet 7 is folded in the first folding region 81 with the first folding portion L1 as the folding axis. Fold over area 82 .
Next, the third folding area 83 is folded over the folded first folding area 81 and the second folding area 82 with the second folding part L2 as the folding axis.
Along both side edges of the folded individual package 10 in the horizontal direction Y, the packaging sheets 7 face each other and are fusion-bonded to form the sealed regions 8 .
As a result, the individual package 10 in which the panty liner 1 is folded in three in the longitudinal direction X is formed.

In addition, the individual package 10 is not limited to the configuration described above, and for example, a release sheet may be provided between the package sheet 7 and the panty liner 1 .
In the above configuration, an example in which one end of the panty liner 1 protrudes from the packaging sheet 7 in plan view has been given, but the panty liner 1 may be positioned inside the packaging sheet 7 without protruding. .

<Structure of each part of the panty liner (absorbent article)>
The configuration of each part constituting the panty liner 1 will be described.

[Absorber]
As shown in FIGS. 1 and 2 , the absorbent body 4 extends along the longitudinal direction X and is arranged between the second sheet 5 and the backsheet 3 . The absorber 4 absorbs body fluid from the skin side 4a and diffuses it inside to retain the body fluid.
As the absorbent body 4, those commonly used in absorbent articles such as panty liners and sanitary napkins can be used without particular limitation. For example, a fiber stack containing fiber materials such as pulp fibers and optionally containing superabsorbent polymer particles, a fiber material such as pulp fibers containing superabsorbent polymer particles and optionally containing superabsorbent polymer particles Absorbent paper, an absorbent sheet in which superabsorbent polymer particles are arranged between two sheets of absorbent paper, and the like can be used.

As shown in FIG. 2, the absorbent body 4 is arranged in a state in which sheet-like absorbent sheets are folded, and has a laminated structure of two or more layers. may Also, the absorbent body 4 may be an absorbent core made of a piled fiber material or an absorbent core that is a mixed pile product in which the fibers carry particles of an absorbent polymer, and the absorbent core is covered with a core wrap sheet. good.

As shown in FIGS. 1 and 3, in the panty liner 1, the absorber 4 has a substantially rectangular shape in plan view.
As shown in FIG. 3, the absorbent body 4 includes a front end portion 4F positioned forward in the longitudinal direction X, a rear end portion 4R positioned rearward in the longitudinal direction X, and both side edge portions 4S, 4S positioned left and right in the lateral direction Y. and have
In the panty liner 1, the absorbent body 4 is positioned over the front area F, the intermediate area C and the rear area R.
In plan view, the dimension in the longitudinal direction X of the absorbent body 4 is shorter than the dimension in the longitudinal direction X of the panty liner 1 . The front end portion 4F and the rear end portion 4R of the absorbent body 4 are located inside the front end portion 1F and the rear end portion 1R of the panty liner 1 in the longitudinal direction X, respectively.
In plan view, the lateral Y dimension of the absorbent body 4 is shorter than the lateral Y dimension of the panty liner 1 . The side edges 4S, 4S of the absorbent body 4 are located inside the side edges 1S, 1S of the panty liner 1 in the lateral direction Y, respectively.
3 and 4, in plan view, the absorbent body 4 has a front end region 41F including the front end 4F and its vicinity, and a rear end region 41R including the rear end 4R and its vicinity.

As shown in FIGS. 1 and 3 , in the panty liner 1 , a region where the absorbent 4 exists in a plan view is called an absorbent-existing region 45 , and a region where the absorbent 4 does not exist is called an absorbent-non-existing region 46 .
In the panty liner 1 , the absorbent body region 45 has a higher basis weight than the absorbent body non-existing region 46 and has a higher rigidity than the absorbent body non-existing region 46 . The longitudinal direction X end portions (front end portion 4F, rear end portion 4R) of the absorber 4 serve as boundaries between the absorber existing region 45 which is a high rigidity region and the absorber non-existing region 46 which is a low rigidity region.

In plan view, the absorber 4 has a length in the longitudinal direction X shorter than that of the top sheet 2, the second sheet 5 and the back sheet 3, and a length in the lateral direction Y of the top sheet 2, the second sheet 5 and the back sheet 3. shorter than the narrowest dimension. The topsheet 2, the second sheet 5 and the backsheet 3 extend outward from the entire peripheral edge of the absorbent body 4, and their extended areas are joined to each other by a joining means such as an adhesive.

[Top sheet]
The surface sheet 2 is configured as a liquid-permeable sheet material, and is arranged above the second sheet 5 in the thickness direction Z. As shown in FIG. The skin side surface of the topsheet 2 constitutes the skin side surface 1 a of the panty liner 1 .
As the surface sheet 2, those commonly used in absorbent articles such as panty liners and sanitary napkins can be used without particular limitation. The surface sheet 2 is made of, for example, a polyolefin resin such as polyethylene or polypropylene, a polyester resin such as polyethylene terephthalate, or the like. In addition, from the viewpoint of realizing a soft texture, natural fibers such as cotton fiber, silk fiber, rayon fiber, polynosic fiber, cellulose fiber other than cotton fiber (hemp, coconut, pulp, straw), regenerated fiber, acetate rayon A topsheet 2 made of or containing semi-synthetic fibers such as, for example, is also applicable.

[Second seat]
A second sheet 5 may be arranged between the topsheet 2 and the absorbent body 4 as in the pantiliner 1 of the present embodiment.
The second sheet 5 promotes the drawing of bodily fluids from the topsheet 2, improves the permeability of the bodily fluids to the absorbent body 4, and reduces the return of the bodily fluids absorbed by the absorbent body 4 to the topsheet 2. It is a sheet that plays a role.
For the second sheet 5, those commonly used in absorbent articles such as panty liners and sanitary napkins can be used without particular limitation. As the second sheet 5, for example, a hydrophilic nonwoven fabric or a hydrophilic fiber assembly can be used. Nonwoven fabrics include air-through nonwoven fabrics, point-bonded nonwoven fabrics, resin-bonded nonwoven fabrics, spunlace nonwoven fabrics, air-laid nonwoven fabrics, and the like.
The second sheet 5 is larger than the absorbent body 4 in a plan view and positioned so as to cover the absorbent body 4 . The second sheet 5 has the same shape as the top sheet 2 and the back sheet 3 and is arranged over the entire surface of the panty liner 1 .

[Back sheet]
The backsheet 3 is arranged below the absorber 4 in the thickness direction Z. As shown in FIG. The non-skin side of the backsheet 3 constitutes the non-skin side 1 b of the panty liner 1 .
As the backsheet 3, those commonly used in absorbent articles such as panty liners and sanitary napkins can be used without particular limitation.
The backsheet 3 is formed of a sheet material having functions such as liquid impermeability, water vapor permeability, and water repellency, for example. As the sheet material, for example, a thermoplastic resin film, a laminate of the film and a nonwoven fabric, or the like can be used.
Moreover, the back sheet 3 may be moisture-permeable.

[Fixing material]
As shown in FIGS. 2 and 3, the non-skin side of the backsheet 3 is provided with a plurality of fixing materials 6 for fixing the panty liner 1 to the underwear.
The fixing material 6 is formed by applying an adhesive, and is covered with the packaging sheet 7 in the state of the individual package 10 before the panty liner 1 is used.

As shown in FIG. 3, the plurality of fastening members 6 are arranged in a stripe pattern extending in the horizontal direction Y and intermittently arranged in the vertical direction X. As shown in FIG. In the panty liner 1, each fixing member 6 has a rectangular shape in a plan view, and has substantially the same dimension in the lateral direction Y as each other.

The plurality of fastening materials 6 are all arranged at positions spaced inward in the lateral direction Y from both side edges 1S, 1S of the panty liner 1 by a predetermined distance.
Of the plurality of fastening materials 6, the fastening materials 6 positioned outermost in the longitudinal direction X (first wide fastening materials 61a to be described later) are both located at the front end 1F and the rear end 1R of the panty liner 1. is arranged at a position spaced a predetermined distance inward in the vertical direction X from the .

As shown in FIG. 4 , in this specification, a region where a plurality of fastening materials 6 are arranged is called a fastening region 30 . The fastening region 30 means a region obtained by surrounding the outer edges of the plurality of fastening materials 6 as a whole, and is a region where the fastening materials corresponding to the gaps between the adjacent fastening materials 6 are not located. include.

As shown in FIG. 3, in the panty liner 1, the fastening region 30 is positioned across the front region F, the middle region C, and the rear region R in plan view.
As shown in FIG. 4, the fastening region 30 includes a front end portion 30F positioned forward in the longitudinal direction X, a rear end portion 30R positioned rearward in the longitudinal direction X, both side edge portions 30S positioned left and right in the lateral direction Y, 30S and
The fastening region 30 includes a front end region 31F near the front end portion 30F including the front end portion 30F (hereinafter referred to as a front end fastening region), and a rear end region near the rear end portion 30R including the rear end portion 30R (hereinafter referred to as a rear end region). , rear end fastening region) 31R and an intermediate fastening region 31C located between the front edge fastening region 31F and the rear edge fastening region 31R.
In the panty liner 1, the front end fastening region 31F is located in the front region F.
The rear end fastening region 31R is located in the rear region R.
The intermediate fastening region 31C is located in a part of the front region F, the middle region C, and a part of the rear region R.

The longitudinal dimension X of the fastening region 30 is shorter than the longitudinal dimension X of the pantiliner 1 , and the lateral dimension Y of the fastening region 30 is shorter than the lateral dimension Y of the panty liner 1 .
The front and rear ends 30F and 30R of the fastening region 30 and the front and rear ends 1F and 1R of the panty liner 1 are separated from each other by a predetermined distance. Therefore, the fastening material 6 is not provided in the vicinity of the front end portion 1F and the vicinity of the rear end portion 1R of the panty liner 1, and the wearer pinches the portion where the fastening material 6 is not provided with fingers, The panty liner 1 can be easily peeled from the packaging sheet 7 when the individual package 10 is opened, and the panty liner 1 fixed to the underwear can be easily peeled off.

In addition, in a plan view, the absorbent body 4 is positioned within the fastening region 30, and the dimension of the absorbent body 4 in the vertical direction X is shorter than the dimension of the fastening region 30 in the vertical direction X. The Y dimension is less than the lateral Y dimension of the fastening region 30 .
A front end portion 30F and a rear end portion 30R of the fastening region 30 are positioned outside the front end portion 4F and the rear end portion 4R of the absorbent body 4 by a predetermined distance in the longitudinal direction X, respectively. Both side edges 30S, 30S of the fastening region 30 are located outside the side edges 4S, 4S of the absorbent body 4 in the lateral direction Y by a predetermined distance.

As shown in FIG. 3, in the panty liner 1, the plurality of fastening members 6 are composed of a wide fastening member 60 and a narrow fastening member 63 whose dimension in the vertical direction X is smaller than that of the wide fastening member 60. and The dimension of the fastening material 6 in the vertical direction X is the width dimension of the fastening material 6 having its longitudinal direction in the horizontal direction Y. As shown in FIG.
In the panty liner 1, each wide fastening material 60 has the same shape and size. Each narrow fastening material 63 has the same shape and size.
When there is no need to distinguish between the wide fastening material 60 and the narrow fastening material 63, the fastening material 6 is used.

As shown in FIG. 4, in the panty liner 1, some of the plurality of fastening materials 6 form a first assembly A, and the other fastening materials 6 form a second assembly B. Configure. The first assembly A and the second assembly B are positioned adjacent to each other along the longitudinal direction X. As shown in FIG. In the pantiliner 1 of this embodiment, the first assembly A, the second assembly B, and the first assembly A are positioned in this order along the longitudinal direction X in the fastening region 30 .
The first aggregate A is a wide aggregate composed of a plurality of wide fastening members 60 . The first assembly A is located in each of the front region F and rear region R of the pantiliner 1, more specifically, in each of the front end fastening region 31F and rear end fastening region 31R of the fastening region 30. As shown in FIG.
The second assembly B is a narrow assembly made up of a plurality of narrow fastening members 63 . The second assembly B is located between the first assembly A located in the front area F and the first assembly A located in the rear area R. In the pantiliner 1 , the second assembly B is located in the intermediate fastening region 31C of the fastening region 30 . The second assembly B is located over a portion of the front region F, the middle region C, and a portion of the rear region R.

As shown in FIG. 4, a plurality of wide fastening members 60 constituting one first aggregate A are composed of first wide fastening members 61 as a plurality of first fastening members and second fastening members. and a second thick fastening material 62 as a material.
The plurality of first wide fastening members 61 are fastening members that do not overlap the absorber 4 in plan view.
The second wide fastening material 62 is a fastening material that overlaps the longitudinal direction X end regions (the front end region 41F and the rear end region 41R) of the absorber 4 in plan view.
In the pantiliner 1 of this embodiment, one first assembly A is composed of two first wide fastening members 61 and one second wide fastening member 62 .
When there is no need to distinguish between the first wide fastening member 61 and the second wide fastening member 62, the wide fastening member 60 is used.
In addition, in the panty liner 1 of the present embodiment, in one first assembly A, the two first wide fastening members 61 constituting a part of the first assembly A are arranged on the outer side in the longitudinal direction X. A reference numeral 61a is attached to the positioned first wide fastening member, and a reference numeral 61b is attached to the first wide fastening member positioned on the inner side in the longitudinal direction X for description. When there is no need to distinguish between the first wide fastening member 61a and the first wide fastening member 61b, the first wide fastening member 61 is used.

The second wide fastening material 62 overlapping the longitudinal direction X end regions (the front end region 41F and the rear end region 41R) of the absorber 4 in plan view is divided into the absorber presence region 45 and the absorber non-existence region 46. located near the boundary of In plan view, the boundary between the absorbent body existing region 45 and the absorbent body non-existing region 46 in the vertical direction X corresponds to the front end portion 4F and the rear end portion 4R, which are the outer edge portions of the absorbent body 4 .

In the mode in which "the second wide fastening member 62 overlaps the longitudinal direction X end region of the absorbent body 4", the second wide fastening member 62 straddles the boundary in the longitudinal direction X in plan view. , in addition to the form located in both the absorber existing area 45 and the absorber non-existing area 46, the following form is also included.
That is, as shown in FIG. 3, in plan view, the second wide fastening member 62 is not located across the boundary in the vertical direction X, but the second wide fastening member 62 is located outside the vertical direction X. and the vertical direction X end of the absorber 4 (front end 4F, rear end 4R) in which the distance q is 0 mm or more and 3 mm or less.
In the example shown in FIGS. 3 and 4, the latter form is adopted. A first wide fastening member 61b and a second wide fastening member 62 are positioned.

As shown in FIGS. 3 and 4 , in the panty liner 1 , in the longitudinal direction X, a plurality of wide fastening members 60 are arranged so as to straddle the boundary between the absorbent body existing region 45 and the absorbent body non-existing region 46 . The configured first aggregates A are located in the front area F and the rear area R, respectively.

<Detailed configuration of fastening material>
[Relationship between Adhesive Forces of Each Wide Fixing Material and Its Effect]
In the first assembly A, the adhesive force of the plurality (two in this embodiment) of the first wide fastening members 61 increases in order of being positioned inward from the longitudinal direction X end of the panty liner 1. are arranged to In addition, the second wide fastening member 62 has higher adhesive strength than the first wide fastening member 61 .
That is, in the panty liner 1, the adhesive force is gradually increased in the order of the first wide fastening member 61a, the first wide fastening member 61b, and the second wide fastening member 62. As shown in FIG. In other words, in the longitudinal direction X, the adhesive strength of the fastening material 6 gradually increases from the end of the panty liner 1 in the longitudinal direction X toward the inner side of the panty liner 1 .

Here, when the individual package 10 is unsealed, the sealed area 8 is peeled and widened, and the panty liner 1 is peeled off from the packaging sheet 7 and taken out, the wearer typically holds the packaging sheet 7 with one hand. , and pinch the vicinity of the front end portion 1F (or the vicinity of the rear end portion 1R) of the panty liner 1 with the fingers of the other hand. Then, while holding the panty liner 1, the wearer moves the other hand substantially along the longitudinal direction X from the front end 1F (or the rear end 1R) toward the rear end 1R (or the front end 1F). The panty liner 1 is peeled off from the packaging sheet 7 in order. If the wearer does not know how much force to apply and performs this peeling operation with excessive force, the fastening materials 6 may unintentionally adhere to each other.
In addition, when peeling the panty liner 1 fixed to the underwear from the underwear, typically, the underwear is held with one hand, and the vicinity of the front end portion 1F (or the rear end portion) of the panty liner 1 is held with the fingers of the other hand. 1R) is pinched and gripped. Then, while holding the underwear, the wearer moves the other hand substantially along the longitudinal direction X, and moves the panties in order from the front end 1F to the rear end 1R (or from the rear end 1R to the front end 1F). Peel the liner 1 from the underwear. If the wearer does not know how much force to apply and performs this peeling operation with excessive force, the fastening materials 6 may unintentionally adhere to each other.
Hereinafter, the peeling operation of the panty liner 1 from the wrapping sheet 7 and the peeling operation of the panty liner 1 from the undergarment by the wearer will be simply referred to as "peeling operation".

In addition, the vicinity of the front region F and the rear region R of the panty liner 1 is a region that is relatively susceptible to movement of the wearer's body, and is a region that is particularly prone to friction with the body and uncomfortable feeling when worn. In this embodiment, the absorber 4 is not arranged near the front and rear ends (front end 1F, rear end 1R) of the panty liner 1 in the longitudinal direction X, thereby reducing the stiffness and flexibility of the front region F and the rear region R. In addition, the feeling of wearing the panty liner 1 is improved.
On the other hand, the vicinity of the front and rear ends (front end 1F, rear end 1R) in the vertical direction X of the panty liner 1 has low rigidity due to the absence of the absorber 4, and is easily deformed. tend to adhere easily.

On the other hand, in the panty liner 1 of the present embodiment, in the front region F and the rear region R of the panty liner 1, A first assembly A made up of a plurality of fastening materials is positioned. As a result, the front region F and the rear region R of the panty liner 1 can be firmly fixed to the underwear, and the front region F and the rear region R of the panty liner 1 can be prevented from twisting, slipping, and curling. It is possible to fully exhibit the improvement in wearing feeling.
In addition, in the panty liner 1 of the present embodiment, since the first assembly A is composed of a plurality of wide fastening members 60 having a relatively wide width and a large area, the front region F and the rear region of the panty liner 1 can be arranged. The region R can be fixed more firmly to the underwear, and the occurrence of twisting, displacement, and curling can be further suppressed.

In addition, in the panty liner 1 of the present embodiment, a plurality of wide fastenings forming the first assembly A located in the front region F and the rear region R, which are easily deformed due to the absence of the absorber 4, The members 60 (three in the present embodiment, a first wide fastening member 61a, a first wide fastening member 61b, and a second wide fastening member 62) extend in the vertical direction X from the ends in the vertical direction X. The adhesive force is gradually increased in the order of position toward the inner side of the panty liner 1. - 特許庁
With such a configuration, it is possible to encourage the wearer to perform the peeling operation carefully, suppress the occurrence of unintended adhesion between the fastening materials 6, and improve the peeling operability. can.
That is, in the panty liner 1, the first wide fastening member 61b is located inside the first wide fastening member 61a in the longitudinal direction X, and has a higher adhesive strength than the first wide fastening member 61a. is configured as
In the peeling operation of the panty liner 1, the wearer first peels off the portion of the panty liner 1 corresponding to the first wide fastening material 61a from the packaging sheet 7 or the underwear. Next, the part corresponding to the first wide fastening material 61b is to be peeled off. , the resistance received from the panty liner 1 during peeling seems to increase.
Further, the second wide fastening member 62 is located inside the first wide fastening member 61b in the longitudinal direction X, and is configured to have a higher adhesive force than the first wide fastening member 61b. there is Therefore, after peeling off the portion corresponding to the first wide fastening material 61b of the panty liner 1 from the packaging sheet 7 or the underwear, the wearer starts peeling off the portion corresponding to the second wide fastening material 62. I feel that the resistance received from the panty liner 1 at the time of peeling increases further.
In this way, by providing the wearer with a tactile sensation that increases the resistance received from the panty liner 1, the wearer is cautioned to perform the peeling operation carefully so as not to forcefully peel off with excessive force. can encourage As a result, the amount of force applied during the peeling operation is controlled so that unintended adhesion between the fastening materials 6 does not occur, and the panty liner 1 with improved peeling operability can be obtained.

In addition, by arranging a plurality of large-width fixing materials 60 so that the adhesive force increases from the end in the vertical direction X toward the inner side in the vertical direction X, the large-width fixing material 60 positioned further inside in the vertical direction X is removed during the peeling operation. The fastening material 60 plays a role of a stopper that suppresses the momentum of peeling. This makes it difficult for the fastening materials 6 to be violently peeled off with an excessive force, thereby suppressing the occurrence of unintended adhesion between the fastening materials 6 and improving the peeling operability.

By suppressing the occurrence of adhesion between the fastening materials 6 in this way, when the panty liner 1 is peeled off from the packaging sheet 7, it is possible to prevent the fastening materials 6 from sticking together and becoming unusable. be able to.
In discarding the panty liner 1, typically, the panty liner 1 fixed to the underwear by the fastening material 6 is peeled off from the underwear and then rolled up with the skin side of the panty liner 1 facing inward. , wrapped in a wrapping sheet 7, toilet paper, etc., and disposed of. When the panty liner 1 is peeled off from the underwear, the occurrence of adhesion between the fastening materials 6 is suppressed, thereby reducing the unpleasantness of the appearance of the panty liner 1 after use. Furthermore, the panty liner 1 can be neatly rolled up without being fixed in an irregular shape and wrapped with the wrapping sheet 7, toilet paper, or the like, so that it is easy to throw away and the unpleasantness of the appearance is reduced.

In addition, the boundary between the absorbent body region 45 and the absorbent body non-existing region 46 tends to become the starting point of bending of the panty liner 1 due to the difference in product rigidity, and the vicinity of the boundary is likely to be twisted or torn due to the wearer's movement. part.
On the other hand, in the panty liner 1 of the present embodiment, in a plan view, in the longitudinal direction X, from a plurality of wide fastening materials, so as to straddle the boundary between the absorbent body existing region 45 and the absorbent body non-existing region 46. Since the first assembly A is located, the panty liner 1 can be firmly fixed to the underwear in the vicinity of the boundary, which tends to be the starting point of bending, and twisting and tearing starting from the boundary can be suppressed.
Furthermore, in the example of the panty liner 1 shown in FIGS. 3 and 4, in the first assembly A, the first thick liner is arranged so as to sandwich the boundary between the absorbent-existing region 45 and the absorbent-existing region 46 in the longitudinal direction X. A width fastening material 61b and a second wide fastening material 62 are positioned. In this way, the first wide fastening member 61b and the second wide fastening member 62 are positioned so as to sandwich the boundary that tends to be the starting point of bending in the longitudinal direction X, and the panty liner 1 is firmly fixed to the underwear. By doing so, twisting and tearing starting from the boundary are more effectively suppressed.
In addition, in the panty liner 1, the first wide fastening members 61a are positioned outside the first wide fastening members 61b in the longitudinal direction X, that is, there are a plurality of first wide fastening members 61, The front region F and the rear region R of the panty liner 1 can be more firmly fixed to the underwear, and twisting and curling are more effectively suppressed.

As described above, the pantiliner 1 of the present embodiment has excellent peeling operability because the fastening materials are less likely to adhere to each other during the peeling operation. Furthermore, when worn, twisting, slipping, turning up, etc. are effectively suppressed.

The adhesive force of the fixing material 6 can be obtained by measuring the adhesive force by the T-peel method specified in JIS K6854-3:1999, which will be described later.

[Action and effect of narrow fastening material]
As shown in FIG. 3, the second assembly B composed of a plurality of narrow fastening members 63 is a part of the front region F in the longitudinal direction X of the panty liner 1 in the lateral direction Y central portion, and is excreted. It is positioned over part of the intermediate region C and the rear region R, which are opposing regions.
In the panty liner 1 , the region where the second assembly B is arranged in a plan view substantially corresponds to the absorbent existing region 45 , and becomes a region with relatively high rigidity due to the presence of the absorbent 4 . By disposing the narrow fastening material 63 having a relatively narrow width and a small area in such a high-rigidity region, the rigidity of the fastening material is increased as compared with the case of disposing a wide fastening material. It can be a low-rigidity region.
As a result, the stiff feeling due to the presence of the fastening material is reduced, and the panty liner 1 can be made to have a soft feeling of wearing with less uncomfortable feeling.
Further, the narrow fastening member 63 arranged in the absorbent body existing region 45 and extending in the lateral direction Y is positioned in the intermediate region C, which is the excretory part facing region. The intermediate region C is a region to which an external force directed inward in the lateral direction Y is applied from both legs of the wearer when worn. By arranging the narrow fastening material 63 (having a small dimension in the vertical direction X) in such an intermediate region C, the narrow fastening material 63 can be applied to the lateral direction by the wearer when worn. Since it becomes difficult to act like a push bar against an external force directed toward the inside of Y, and can absorb stress in the direction of deformation like a bellows, the narrow fastening material 63 is less likely to come off from the underwear, and twists and shifts are prevented. suppressed more effectively.

In addition, lateral Y side edge portions 1S, 1S of the intermediate region C of the panty liner 1 are portions corresponding to the leg circumferences of the wearer. In this embodiment, by not arranging the absorber 4 and the fastening material 6 on both sides of the intermediate region C of the panty liner 1 in the horizontal direction Y, the region is made flexible. Thereby, the contact with the skin is improved, and the feeling of wearing can be further improved.

In this way, in the panty liner 1, the front area F and the rear area R in the longitudinal direction X are provided with the first assembly A composed of a plurality of relatively wide fastening members 60 having a large area. Therefore, it is possible to effectively suppress the occurrence of twisting, displacement, and curling of the front region F and the rear region R, which have the absorber non-existing region 46 and are easily deformed, and can be relatively relative to the intermediate region C. By arranging a plurality of narrow fastening members 63 (second assembly B) having a narrow width and a small area, it is possible to reduce wearing discomfort and suppress twisting and displacement of the intermediate region C.

[Positional relationship between fastening material and folding position]
As shown in FIG. 1, the plurality of wide fastening members 60 (constituting the first assembly A) located in the front area F are located outside the first folded portion L1 in the longitudinal direction X. As shown in FIG. Similarly, the plurality of wide fastening members 60 (constituting the first assembly A) located in the rear region R are located outside the second folded portion L2 in the longitudinal direction X. As shown in FIG.
Here, when the individual package 10 is unsealed and unfolded, the individual package 10 is folded so as to return to the shape of the folded state due to creases at the folding portions L1 and L2 when the individual package 10 is folded. With the portions L1 and L2 as base points, the first folding region 81 and the third folding region 83 are easily folded so as to fall toward the second folding region 82 with the skin side of the panty liner 1 facing inward.
On the other hand, in the panty liner 1 of the present embodiment, when the individual package 10 is opened and unfolded and the panty liner 1 is fixed to the underwear by the fastening material 6, it is arranged outside the folded portions L1 and L2 in the longitudinal direction X. Since the front region F and the rear region R of the panty liner 1 are firmly fixed to the underwear by the plurality of thick fastening members 60, the panty liner 1 is suppressed from returning to the shape of the folded state due to folding wrinkles. . This improves fit when worn.

[Details of the relationship between adhesive strength of each fastening material]
(Relationship between adhesive strength of each first thick fastening material)
In the first assembly A, the maximum adhesive force difference between the plurality of first wide fastening members 61, that is, the first wide width located on the outermost side in the longitudinal direction X among the plurality of first wide fastening members 61 It is preferable to set the adhesive force difference between the fastening material 61 and the first wide fastening material 61 located on the innermost side in the longitudinal direction X as follows.
The maximum adhesive force difference between the plurality of first wide fastening members 61 is the first wide fastening member 61 positioned outermost in the longitudinal direction X among the plurality of first wide fastening members 61 (this embodiment In terms of form, it is preferably 30% or less, more preferably 25% or less of the adhesive strength of the first wide fastening material 61a).
With such a configuration, twisting in the front area F and the rear area R of the panty liner 1 is further suppressed. If the maximum adhesive force difference is too large, twist starting points are likely to be formed in the front region F and the rear region R due to the adhesive force difference.
Also, the maximum adhesive strength difference is preferably 5% or more, more preferably 15% or more.
With such a configuration, the wearer can easily recognize the change in the resistance received from the panty liner 1 due to the difference in the adhesive strength of the plurality of first wide fastening members 61 during the peeling operation. It is possible to be conscious of performing the peeling operation carefully so as not to force the peeling vigorously. As a result, the amount of force applied during the peeling operation is controlled so that the fastening materials 6 are not unintentionally adhered to each other, thereby further improving the peeling operability.

In the panty liner 1 of this embodiment shown in FIG. corresponds to the difference in adhesive force with the first wide fastening member 61b positioned at .

Furthermore, in the plurality of first wide fastening members 61 of the first assembly A, the difference in adhesive strength between two adjacent first wide fastening members is preferably set as follows.
The difference in adhesive strength between two adjacent first wide fastening materials is the adhesive strength of the first wide fastening material located on the outer side in the longitudinal direction X among the two adjacent first wide fastening materials 61. It is preferably 30% or less, more preferably 20% or less.
With such a configuration, twist starting points due to a difference in adhesive force are less likely to be formed in the front region F and the rear region R, and the occurrence of twist in the front region F and the rear region R of the panty liner 1 is suppressed.
In addition, the difference in adhesive strength between two adjacent first wide fastening materials is the adhesive strength of the first wide fastening material located on the outer side in the longitudinal direction X among the two adjacent first wide fastening materials 61. , preferably 5% or more, more preferably 10% or more.
With such a configuration, the wearer can easily recognize the change in the resistance received from the panty liner 1 due to the difference in the adhesive strength of the plurality of first wide fastening members 61 during the peeling operation. It is possible to be conscious of performing the peeling operation carefully so as not to force the peeling vigorously. As a result, the amount of force applied during the peeling operation is controlled so that the fastening materials 6 are not unintentionally adhered to each other, thereby further improving the peeling operability.

In the form of the panty liner 1 of this embodiment shown in FIG. 3, the number of the first wide fastening members 61 forming part of the first assembly A is two. These two first wide fastening members 61 (first wide fastening member 61a and first wide fastening member 61b) are arranged adjacent to each other. It is preferable that the difference in adhesive strength between the two adjacent first wide fastening members 61a and 61b is within the above range.
In addition, in the panty liner, when the number of the plurality of first wide fastening members 61 forming part of the first assembly A is three or more, two groups of adjacent first wide fastening members It is preferable that the relationship between the adhesive strengths is within the above range.

(Adhesive strength of thick fixing material)
The adhesive strength of each wide fastening material 60 is preferably set as follows.
The adhesive force of each wide fastening material 60 is preferably 100 cN/25 mm or more, more preferably 150 cN/25 mm or more, as measured by the T-type peeling method specified in JIS K6854-3:1999, which will be described later. .
With such a configuration, the panty liner 1 is less likely to come off from the underwear when worn, and the panty liner 1 can be well fixed to the underwear, preventing the panty liner 1 from slipping or twisting when worn. can be suppressed.
In addition, the adhesive strength of each wide fastening material 60 is preferably 600 cN/25 mm or less, more preferably 500 cN/25 mm or less, as measured by the T-type peeling method specified in JIS K6854-3:1999, which will be described later. is.
With such a configuration, when the panty liner 1 is peeled off from the underwear, the fastening material is less likely to remain on the underwear, and the panty liner 1 can be neatly peeled off from the underwear.

(Example of adhesive strength of fixing material)
The adhesive strength of the first wide fastening material 61a is preferably 100 cN/25 mm or more, more preferably 150 cN/25 mm or more, and preferably 400 cN/25 mm or less, more preferably 300 cN/25 mm or less.
The adhesive strength of the first wide fastening material 61b is preferably 200 cN/25 mm or more, more preferably 250 cN/25 mm or more, and preferably 500 cN/25 mm or less, more preferably 400 cN/25 mm or less.
The adhesive force of the second wide fastening material 62 is preferably 300 cN/25 mm or more, more preferably 350 cN/25 mm or more, and preferably 600 cN/25 mm or less, more preferably 500 cN/25 mm or less.

In the panty liner 1, each fastening material 6 is adhered as follows, as an example, so as to satisfy the adhesive strength relationship between the first wide fastening materials and the adhesive strength relationship between the wide fastening materials. power can be set.
The adhesive strength of the first wide fastening material 61a is 320 cN/25 mm.
The adhesive strength of the first wide fastening material 61b is 400 cN/25 mm.
The adhesive force of the second wide fastening material 62 is 480 cN/25 mm.

(Method for making adhesive strength different)
A method of differentiating the adhesive force of each wide fastening material 60 can be realized by, for example, varying the basis weight of the adhesive constituting the fastening material. An example of the basis weight is given below, but the basis weight is not limited to this.
The basis weight of the first wide fastening material 61a is, for example, 40 g/m ² .
The basis weight of the first wide fastening material 61b is, for example, 50 g/m ² .
The basis weight of the second wide fastening material 62 is, for example, 60 g/m ² .
In this way, by increasing the basis weight of each wide fastening material 60 stepwise in order from the longitudinal direction X end of the panty liner 1 toward the inner side, each wide fastening material 60 is bonded. The force can be configured to increase stepwise in order from the longitudinal X end toward the inside.

(Method for measuring adhesive force)
The adhesive strength of the fixing material 6 is measured by the T-peel method specified in JIS K6854-3:1999. The measurement method will be described below.
The “adhesive strength” referred to here is the adhesive strength of the fastening material 6 to a predetermined adherend. In the measurement by the T-peel method, a dye fastness test cloth (Watakinba No. 3) is used as an adherend. The measurement environment is a room temperature of 25±1° C. and a humidity of 50%±5% RH. It is assumed that the adherend is cut into a rectangular shape larger than the sample width. In this example, the adhesive force was measured using intermittent panty liners with a fastening material width of 45 mm for a product length of 160 mm and a product width of 60 mm (minimum width of 57 mm). When measuring the adhesive force, the fixing material width was adjusted to 25 mm. That is, when the width of the fastening material exceeds 25 mm, the adhesive strength is measured after adjusting the width of the fastening material to 25 mm using talc, dust paper, or the like. A sample containing the fastening material to be measured was placed on the adherend so that the fastening material side (the non-skin side of the absorbent article) overlapped with the adherend, and a 2 kg roller was applied to the sample. The sample is reciprocated once upward, and the sample and the adherend below it are crimped via the fastening material. The laminate of the sample and the adherend thus crimped is mounted between chucks (distance between chucks: 30 mm) of a tensile tester (Tensilon tensile tester RTC-1210A manufactured by Orientec Co., Ltd.), and the laminate is JIS K6854-3: While supporting it so that it becomes a T type defined in 1999, the laminate is pulled in its longitudinal direction at a tensile speed of 300 mm / min to separate the sample and the adherend, and the tensile load at that time Record (maximum load). The measurement is performed five times, and the average value thereof is taken as the adhesive force per 25 mm length in the lateral direction Y according to the T-type peeling method of the fixing material. The adhesive strength is the five-time average adhesive strength per length in the horizontal direction Y for each fastening material.

(Method for measuring basis weight of adhesive in fixing material)
It can be obtained by dividing the application amount (g) of each fastening material 6 by the area (m ² ) of the fastening material in plan view.

[Size and placement of fastening material]
(Relationship of area between wide fastening material and narrow fastening material)
The area difference between one wide fastening member 60 and one narrow fastening member 63 is preferably two to four times the area of the narrow fastening member 63 .
If the area difference is too large, such as more than four times, the external force exerted by the wearer's movement, etc. during wearing tends to concentrate on the wide fastening material 60, which may cause the panty liner 1 to come off from the underwear. be.
On the other hand, by setting the width to 4 times or less, it is possible to make it difficult for the external force to concentrate on the wide fastening material 60, thereby suppressing the peeling of the panty liner 1 from the underwear when worn.
Moreover, by making the difference in area more than twice, it is possible to effectively suppress twisting, slippage, and curling while reducing uncomfortable feeling in wearing.

(Arrangement intervals of narrow fastening materials)
The arrangement interval of the plurality of narrow fastening members 63 intermittently arranged along the vertical direction X is preferably substantially the same as the width dimension (the length in the vertical direction X) of the narrow fastening members 63. .
Here, “substantially the same” means that the difference between the arrangement interval and the width dimension of the narrow fastening members 63 is less than ±10% of the width dimension of the narrow fastening members 63 . Also, the “arrangement interval” indicates the length in the vertical direction X of the gap between two adjacent narrow fastening members 63 where no fastening members are present. When the side of the narrow fastening material 63 has a wavy shape or a shape that partially protrudes, the arrangement interval in the length in the vertical direction X is the minimum at the gap where the fastening material does not exist. It is the part that becomes. At this time, the width of the narrow fastening material 63 is the portion where the width of the fastening material is maximum in the length in the vertical direction X. As shown in FIG.
With such an arrangement interval, the region where the narrow fastening material 63 of the panty liner 1 is arranged, including the intermediate region C, is less likely to be lifted from the underwear when worn, and discomfort in wearing can be reduced. . In addition, when the panty liner 1 is constructed using the moisture-permeable back sheet 3, by setting the arrangement interval as described above, the moisture-permeable effect of the back sheet 3 is less likely to be hindered, and the liquid absorbed by the panty liner 1 is detrimental. Steam is easily evaporated from the back sheet 3 side. As a result, stuffiness during wearing of the panty liner 1 can be reduced, and the panty liner 1 can be made comfortable to wear.

(Arrangement interval of the first thick fastening material)
The arrangement interval of the plurality of first wide fastening members 61 intermittently arranged along the longitudinal direction X is preferably smaller than the width dimension (the length in the longitudinal direction X) of the first wide fastening members 61. .
The “arrangement interval” is the length in the vertical direction X in the gap portion where no fastening material exists between two adjacent first wide fastening materials 61 .
When worn, the front region F and the rear region R of the panty liner 1 tend to be lifted from the underwear due to the creases formed by the folded portions L1 and L2 when individually wrapped. By arranging the dressing materials 61 at the above arrangement intervals, the front area F and the rear area R of the panty liner 1 are less likely to be lifted from the underwear, and discomfort when worn can be reduced.

(Example of dimensions for each configuration)
1, 3 and 4, an example of the dimensions of each component in the panty liner 1 having a total length of 160 mm will be given. The dimensions of each component can be appropriately set depending on the total length of the panty liner 1, and are not limited to the numerical values given below.

As shown in FIG. 3, the dimension d in the longitudinal direction X of the panty liner 1 is 160 mm.
The dimension e of the widest portion of the panty liner 1 in the lateral direction Y is 60 mm, and the dimension r of the narrowest portion of the panty liner 1 in the lateral direction Y is 57 mm.

As shown in FIG. 3, the dimension i of the fastening region 30 in the longitudinal direction X is 134 mm. The dimension i is between the outermost ends in the longitudinal direction X of the fastening members 6 (the first wide fastening members 61 in the present embodiment) located on the outermost sides in the longitudinal direction X of the plurality of fastening members 6. Distance.
A dimension j of the fastening region 30 in the lateral direction Y is 45 mm. In this embodiment, all of the plurality of fastening materials have the same dimension in the horizontal direction Y, and the dimension j can also be said to be the dimension in the horizontal direction Y of the fastening material 6 .

As shown in FIGS. 3 and 4, the dimension in the horizontal direction Y of the region (dry edge region) between the side edge 1S of the panty liner 1 and the side edge 30S of the fastening region 30 is the same as the width of the panty when worn. From the viewpoint of suppressing the occurrence of curling of the liner 1, it is preferably 10 mm or less, and from the viewpoint of making it difficult for the fastening material to adhere to the wearer's skin when worn, it is preferably 3 mm or more. With a thickness of 3 mm or more, even if the panty liner 1 is turned up by an external force directed inward in the lateral direction Y from the wearer, the fastening material does not easily adhere to the skin. It is difficult to cause discomfort and rough skin due to
As an example, in the panty liner 1, the maximum width h of the dimension in the horizontal direction Y of the region (dry edge region) between the side edge 1S of the panty liner 1 and the side edge 30S of the fastening region 30 is 7.5 mm. and the minimum width t is 6 mm.

As shown in FIGS. 3 and 4, the longitudinal X-ends (front end 30F, rear end 30R) of the fastening region 30 and the longitudinal X-ends (front end 1F, rear end 1R) of the panty liner 1 The distance g in the vertical direction X is preferably 15 mm or less from the viewpoint of suppressing the occurrence of curling of the panty liner 1 when worn.
The distance g is preferably 5 mm or more from the viewpoint of peeling operability. This makes it easier for the wearer to hold the end of the panty liner 1 by pinching it with his or her fingers, thereby improving the peeling operability. It is difficult to feel comfortable.
As an example, the distance g is 13mm.

As shown in FIG. 3, the dimension k in the longitudinal direction X of the wide fastening material 60 is 6 mm.
The dimension m in the longitudinal direction X of the narrow fastening material 63 is 2 mm.
The arrangement interval n between two adjacent wide fastening members 60 in the plurality of wide fastening members 60 is 3 mm.
The arrangement interval p between two adjacent narrow fastening members 63 in the plurality of narrow fastening members 63 is 2 mm.
The arrangement interval u between the second wide fastening member 62 and the adjacent narrow fastening member 63 is 2 mm.

Referring to FIG. 1, when the individual package 10 is unsealed and unfolded, the dimension in the longitudinal direction X of the first folding region 81 is 52.5 mm, and the dimension in the longitudinal direction X of the second folding region 82 is 65 mm. and the dimension in the vertical direction X of the third folded region 83 is 52.5 mm.
The dimension of the packaging sheet 7 in the vertical direction X is 162 mm when the individual package 10 is opened and spread.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.
For example, in the above embodiments, an example of a panty liner (pantyhose sheet) is shown as an absorbent article, but the present invention is not limited to this. The absorbent article of the present invention may be a urine absorbing pad, a sanitary napkin, or the like.

Further, in the above-described embodiment, an example in which each first assembly A has two first wide fastening members 61 is given, but it may have three or more, and the panty liner 1 and the absorbent body 4 may have three or more. The number can be appropriately set according to the size of .

In addition, in the pantiliner 1 of the above-described embodiment, the plurality of fastening materials are classified into two types, wide fastening materials and narrow fastening materials, which have different dimensions (width dimensions) in the vertical direction X. Examples have been given, but are not limited to these. For example, a plurality of fastening materials may be divided into three or more types with different dimensions in the vertical direction X, or all may have the same dimension in the vertical direction X.
In addition, in the pantiliner 1 of the above-described embodiment, the first fastening material is positioned in both the front end region and the rear end region of the fastening region. The first fastening material may be positioned on either one of the rear end regions.
At least in the absorbent article, at least one of the front end region and the rear end region of the fastening region is provided with a plurality of first fastening materials that do not overlap the absorbent body and longitudinal end regions of the absorbent body in a plan view. and a second fastening material overlapping each other, and a plurality of the first fastening materials and the second fastening materials constituting the first assembly are arranged at the longitudinal ends of the absorbent article It suffices if they are arranged so that their adhesive strength increases in order from the part toward the inside.

With such a configuration, the wearer is given a tactile sensation that increases the resistance received from the absorbent article during the peeling operation, and the wearer is prevented from vigorously peeling off with excessive force. It can generate the consciousness to operate carefully. As a result, the amount of force applied during the peeling operation can be controlled so that unintended adhesion between the fastening materials does not occur, and the absorbent article can have improved peeling operability.

Incidentally, the operation of peeling the absorbent article from the underwear is generally performed by gripping the vicinity of the front end portion of the absorbent article with fingers and sequentially peeling the absorbent article from the underwear from the front to the rear. Therefore, the first assembly is preferably provided at least in the front end region of the fastening region.

Further, like the panty liner 1 of the above-described embodiment, the absorbent article has a configuration in which either the front or rear ends of the absorbent article may face forward and be fixed to the underwear. In the case of an absorbent article having a shape of , the first assembly is present in both the front end region and the rear end region of the fastening region, so even if the absorbent article is fixed to the underwear with which side facing forward , the absorbent article can be improved in stripping operability.

Further, as in the above-described embodiment, by adopting a configuration in which the first assembly is positioned at both the front end region and the rear end region of the fastening region, the vicinity of the front end portion of the absorbent article can be gripped with fingers. When the absorbent article is peeled off from the underwear in order from the front to the rear, and in the case where the rear end of the absorbent article is gripped with fingers and the absorbent article is peeled off from the underwear in order from the rear to the front. In either case, it is possible to improve the peeling operability.

Further, in the above-described embodiment, an example of the panty liner having a shape symmetrical with respect to the horizontal center line CLy was given, but it may have a non-symmetrical shape.
In the case of such a shape, it is typically decided which end will be the front when worn, so considering that there are many peeling operations from the front to the back in general, the first Preferably, the assembly is provided at least in the front end region of the fastening region.

1 ... panty liner (absorbent article)
1F: Front end of panty liner (longitudinal end of absorbent article)
1R: Rear end of panty liner (longitudinal end of absorbent article)
2... Top sheet 3... Back sheet 4... Absorbent body 41F... Front end region of absorbent body (longitudinal end region of absorbent body)
41R... Absorber rear end region (longitudinal direction end region of absorber)
6: Fastening material 60: Thick fastening material (fastening material)
61... First thick fastening material (first fastening material)
62... Second thick fastening material (second fastening material)
63 Narrow fixing material (fixing material)
30: Attachment area 31F: Front end attachment area (front end area of attachment area)
31R: Rear end attachment region (rear end region of attachment region)
A... First assembly F... Front area C... Intermediate area R... Rear area

Claims (10)

It comprises a topsheet, a backsheet, and an absorbent body disposed between the topsheet and the backsheet, and has a longitudinal direction corresponding to the front-rear direction of the wearer and a lateral direction orthogonal to the longitudinal direction. An absorbent article divided into a front region, a middle region facing the wearer's excretory part, and a rear region along the longitudinal direction,
The backsheet has a fastening region including a plurality of fastening members extending in the lateral direction and intermittently arranged in the vertical direction,
Some of the plurality of fastening materials constitute a first aggregate composed of a plurality of fastening materials located in at least one of a front end region and a rear end region of the fastening region,
The plurality of fastening materials that constitute the first aggregate are, in plan view, a plurality of first fastening materials that do not overlap the absorbent body and second fastening materials that overlap the longitudinal end regions of the absorbent body. It is divided into materials and
In the first assembly, the plurality of first fastening materials are arranged so that their adhesive strength increases in order from the longitudinal end of the absorbent article toward the inside, and 2. The absorbent article, wherein the second fastening material has a higher adhesive strength than the first fastening material. The plurality of fastening materials are classified into a wide fastening material and a narrow fastening material having a smaller vertical dimension than the wide fastening material,
The first assembly is composed of a plurality of the wide fastening materials,
2. According to claim 1, wherein the fastening region includes the first assembly and a second assembly made up of a plurality of the narrow fastening materials positioned adjacent to the first assembly in the longitudinal direction. The absorbent article described. The fastening region includes the first assembly located in each of the front end region and the rear end region of the fastening region, and the second assembly located between the first assemblies; The absorbent article according to claim 2, comprising: 4. The area difference between one wide fastening material and one narrow fastening material is two to four times the area of one narrow fastening material, according to claim 2 or 3. absorbent article. The plurality of narrow fastening materials are positioned in the intermediate region,
5. The absorbent article according to any one of claims 2 to 4, wherein the arrangement interval of the plurality of narrow fastening materials is substantially the same as the vertical dimension of the narrow fastening materials. 6. The absorbent according to any one of claims 1 to 5, wherein the first fastening material is positioned on the outer side in the longitudinal direction of a laterally extending folding portion serving as a base point for folding the absorbent article as an individual package. Goods. In the plurality of first fastening materials of the first assembly, the maximum adhesive force difference between the plurality of first fastening materials is the adhesive force of the first fastening material positioned outermost in the longitudinal direction. 7. The absorbent article according to any one of claims 1 to 6, which is 30% or less. In the plurality of first fastening materials of the first aggregate, the difference in adhesive strength between two adjacent first fastening materials is the first fastening material located on the outer side in the longitudinal direction of the two adjacent first fastening materials. 8. The absorbent article according to claim 7, wherein the adhesive strength of one fastening material is 5% or more and 30% or less. The adhesive force of each fastening material that constitutes the first aggregate is 100 cN/25 mm or more and 600 cN/25 mm or less as measured by the T-type peeling method specified in JIS K6854-3: 1999. Absorbent article according to any one of. 10. Any one of claims 1 to 9, wherein, in the plurality of first fastening materials of the first assembly, the arrangement interval of the plurality of first fastening materials is smaller than the vertical dimension of the first fastening materials. 1. The absorbent article according to claim 1.

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