CN117915875A

CN117915875A - Absorbent article and absorbent article package

Info

Publication number: CN117915875A
Application number: CN202280059101.9A
Authority: CN
Inventors: 佐久间郁; 高阪翔士; 山本纯子
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2021-09-29
Filing date: 2022-07-20
Publication date: 2024-04-19
Also published as: KR20240065090A; WO2023053680A1; JP2023049710A

Abstract

The present invention provides an absorbent article (1), wherein: the absorbent body is provided with a high stiffness region (H) and a low stiffness region (L), and has a 1 st bonding region (10) and a2 nd bonding region (20); the 1 st bonding area (10) comprises an 11 th bonding part (11) positioned on the front side; the 2 nd bonding region (20) comprises a 21 st bonding part (21) positioned on the front side and on one side of the center in the width direction; when viewed in a plan view, the 11 th bonding part (11) has a portion overlapping the high rigidity region (H), and the 21 st bonding part (21) has a portion overlapping the low rigidity region (L); a non-adhesive part (31) is arranged in the part overlapped with the high rigidity area (H); the non-adhesive part (31) is sandwiched between the 11 th adhesive part (11) and the part where the high rigidity region (H) overlaps each other in the width direction; on one side in the width direction, the side edge of the 21 st adhesive part (21) on one side in the width direction is positioned outside the side edge of the 11 th adhesive part on one side in the width direction of the part overlapping the high-rigidity region.

Description

Absorbent article and absorbent article package

Technical Field

The present invention relates to an absorbent article and an individually packaged absorbent article.

Background

As absorbent articles for absorbing excretions such as urine, sanitary napkins, light incontinence pads, and the like are known. For example, patent document 1 describes that an adhesive is provided on the non-use side of an absorbent article including an absorber so as to prevent the absorbent article from moving.

Citation document

Patent literature

Patent document 1: japanese patent application laid-open No.2003-10245

Disclosure of Invention

Technical problem

However, when the absorbent article is worn, excessive contraction force or torsion force is applied to the absorber with movement of the wearer's body, and there is a risk that the adhesive portions of the non-use side of the absorbent article may adhere to each other. In particular, if a force or torsion is applied to a highly rigid portion of the absorber of the absorbent article, it is easy to cause the absorber to generate so-called wrinkles, or to cause portions of the adhesive on the non-use side to remain adhered to each other. This makes it difficult for the absorbent article to return from deformation to its original shape, resulting in a risk that the wearer is liable to feel uncomfortable or that faeces may leak out of the absorbent article.

The present invention has been made in view of the conventional problems as described above, and an aspect of the present invention is to improve the followability of an absorbent article with respect to a garment in which the absorbent article is placed, and to facilitate return from deformation to its original shape even if the absorbent article is deformed.

Means for solving the problems

The main aspect of the present invention for achieving the above-described aspect is an absorbent article having a front-rear direction, a width direction, and a thickness direction, the absorbent article including an absorbent body that absorbs liquid and a bonding portion located on a non-skin side surface of the absorbent article, the absorbent body having a high rigidity region and a low rigidity region, the rigidity in the low rigidity region being lower than that in the high rigidity region, the bonding portion having a 1 st bonding region and a 2 nd bonding region, the 1 st bonding region having a 11 st bonding portion, the 11 st bonding portion being located on a front side in the front-rear direction with respect to a center of the absorbent article, the 2 nd bonding region having a 21 st bonding portion located on a front side in the front-rear direction with respect to the center of the absorbent article, and, on a side in the width direction with respect to the center of the absorbent article, the 11 st bonding portion having a portion overlapping the high rigidity region, the 21 st bonding portion having a portion overlapping the high rigidity region, and a non-rigid portion being located on the side of the width direction with respect to the center of the absorbent article, the bonding portion being located on the non-side in the width direction, the bonding portion overlapping the high rigidity region being located on the side of the non-overlap side in the width direction with the 11 side.

Other features of the present application will become more apparent upon reading the specification of the present application with reference to the accompanying drawings.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the following performance of the absorbent article with respect to the clothing on which the absorbent article is placed can be improved, and even when the absorbent article is deformed, the absorbent article is easily returned from the deformed shape to its original shape.

Drawings

Fig. 1 is a plan view of a light incontinence pad 1 in an elongated state when viewed from the skin side.

Fig. 2 is a plan view of the pad 1 in an elongated state when viewed from the non-skin side.

Fig. 3 is a schematic cross-sectional view of the gasket 1 at line C-C of fig. 1, as seen along arrow A-A.

Fig. 4 is a schematic view illustrating the pad 1 in a worn state.

Fig. 5 is a schematic diagram showing a high-rigidity region H and a low-rigidity region L overlapped in the thickness direction in the plan view of fig. 2.

Fig. 6 is an enlarged view of the front side of the gasket 1 in fig. 5.

Fig. 7 is a schematic view illustrating the package 100 in the unfolded state.

Fig. 8 is a plan view of a pad 1A according to a modification of the first embodiment when viewed from the non-skin side.

Fig. 9 is a plan view of a pad 1B according to a modification of the first embodiment when viewed from the non-skin side.

Detailed Description

At least the following matters will be apparent from the description and drawings of the present application.

An absorbent article having a front-rear direction, a width direction, and a thickness direction, the absorbent article comprising an absorbent body that absorbs liquid and a bonding portion located on a non-skin side surface of the absorbent article, the absorbent body having a high rigidity region and a low rigidity region, the rigidity in the low rigidity region being lower than that in the high rigidity region, the bonding portion having a1 st bonding region and a2 nd bonding region, the 1 st bonding region having an 11 st bonding portion located on a front side with respect to a center in the front-rear direction of the absorbent article, the 2 nd bonding region having a 21 st bonding portion located on a front side with respect to the center in the front-rear direction of the absorbent article, and located on a side with respect to the center in the width direction of the absorbent article, the 11 st bonding portion having a portion overlapping the high rigidity region when the absorbent article is viewed in a thickness direction, the 21 st bonding portion having a portion overlapping the low rigidity region, the non-bonding portion being provided on a portion overlapping the high rigidity region, the non-bonding portion being provided on a side of the non-bonding portion overlapping the high rigidity region, the non-bonding portion being provided on a side of the width of the non-bonding portion overlapping the first bonding portion in the width direction from the side of the non-bonding portion being provided on the side of the first side in the width direction, and the bonding portion being provided on the side of the non-bonding portion overlapping the high rigidity portion in the width direction.

According to the absorbent article, by providing the 1 st bonded region having the 11 th bonded portion and the 2 nd bonded region having the 21 st bonded portion, the followability of the absorbent article with respect to the clothing can be improved. In addition, even if the absorbent article is deformed during use, the non-bonded portions provided in the high-rigidity region can reduce the risk of the 11 th bonded portions being bonded to each other; in the case where the portions of the 11 th bonding portion are bonded to each other, the 21 st bonding portion bonded to the clothing makes it easy to eliminate the bonding between the portions of the 11 th bonding portion; further, the absorbent article is easily restored from the deformed state to its original state. Thus, it is easy to alleviate the uncomfortable feeling of the wearer caused by deformation of the absorbent article during use, and to alleviate local irritation to the skin of the wearer caused by deformation of the absorbent article.

In such an absorbent article, it is preferable that the non-bonded portion is provided at a central portion in the width direction, and is continuous from the front end of the 1 st bonded region to the rear end of the 1 st bonded region.

According to this absorbent article, deformation in which the central portion of the absorbent article protrudes toward the skin side is likely to occur in a worn state. In addition, the non-bonded portion reduces the risk of the portions of the 1 st bonded region being bonded to each other, or the bonding is easily peeled off even if the portions of the 1 st bonded region are bonded to each other. This tends to alleviate the discomfort of the wearer during use caused by deformation of the absorbent article and localized irritation of the skin of the wearer.

In such an absorbent article, the length of the 21 st bonded portion in the front-rear direction is preferably longer than the length of the 21 st bonded portion in the width direction.

According to this absorbent article, the 21 st bonded portion is easily provided near the front end of the absorbent article, and the absorbent article is made to easily follow the clothing, and the risk of the 2 nd bonded regions being bonded to each other in the width direction is easily reduced.

In such an absorbent article, it is preferable that the front end of the 11 th adhesive portion is provided on the front side with respect to the front end of the high rigidity region, and that the 11 th adhesive portion has a portion overlapping with the low rigidity region on the front side with respect to the front end of the high rigidity region when the absorbent article is viewed in a plan view in the thickness direction.

According to the absorbent article, even if the portions of the 11 th bonded portions in the high rigidity region are bonded to each other, the 11 th bonded portions overlapping the low rigidity region at the front side with respect to the front end of the high rigidity region tend to pull the high rigidity region due to deformation of the clothing, and this makes it easy to peel off the bonding of the portions of the 11 th bonded portions in the high rigidity region. Further, this makes it easy for the absorbent article to return from the deformed state to its original state, and it is easy to alleviate the uncomfortable feeling of the wearer caused by the deformation of the absorbent article.

In such an absorbent article, it is preferable that the rear end of the 21 st adhesive portion is provided on the rear side with respect to the front end of the high rigidity region, and that the 21 st adhesive portion has a portion overlapping the high rigidity region on the rear side with respect to the front end of the high rigidity region when viewed in plan in the thickness direction.

According to the absorbent article, even if the portions of the 1 st bonded region in the high rigidity region are bonded to each other, the 21 st bonded portion overlapping the high rigidity region at the rear side with respect to the front end of the high rigidity region is liable to pull the high rigidity region due to deformation of the clothing, and this makes it easy to peel off the bonding of the portions of the 1 st bonded region in the high rigidity region. Further, this makes it easy for the absorbent article to return from the deformed state to its original state, and it is easy to alleviate the uncomfortable feeling of the wearer caused by the deformation of the absorbent article.

In such an absorbent article, it is preferable that the 21 st adhesive portion is provided in the longest portion of the absorbent article having the longest length in the width direction on the front side with respect to the center in the front-rear direction.

According to the absorbent article, the 21 st bonded portion allows the portion of the absorbent article having the longest length in the width direction to be fixed to the clothing. This makes it easy to reduce the risk of the absorbent article shifting or deforming during use, and to alleviate the discomfort of the wearer.

In such an absorbent article, it is preferable that in the narrowest portion of the length in the width direction of the absorbent article, the side end on one side in the width direction of the bonded portion is separated from the side end on one side in the width direction of the absorbent article.

According to this absorbent article, deformation in which the central portion and the side ends of the absorbent article in the width direction protrude toward the skin side and the portion between the central portion and the side ends in the width direction protrude toward the non-skin side is easily promoted during use. This makes it easy for the absorbent article to fit the body of the wearer.

In such an absorbent article, the front end of the 21 st bonded portion is preferably located on the front side with respect to the front end of the 11 th bonded portion.

According to this absorbent article, the 21 st bonded portion is easily kept fixed to the clothing regardless of whether the high rigidity region is deformed or not. This allows the absorbent article to remain fixed to the clothing, and in the case where not only the 11 th and 21 st bonded portions but also other bonded portions are provided on the other side in the width direction, this makes it easy to reduce the risk of the 2 nd bonded region and the other bonded portions bonding to each other.

In such an absorbent article, it is preferable that the absorbent article has a compressed portion in which the absorbent article is compressed in the thickness direction, the compressed portion includes a front-rear compressed portion extending in the front-rear direction, and at least a part of the 2 nd bonded region is located outside the front-rear compressed portion in the width direction.

According to the absorbent article, the front-rear compressed portions cause the absorbent article to deform into a desired shape, so that the absorbent article is easily fitted to the body of the wearer. Further, the 2 nd adhesive region provided on the outer side of the front-rear compressed portion in the width direction makes it easy for the once deformed absorbent article to return from the deformed state to its original shape with the movement of the garment to return to its original shape.

In such an absorbent article, it is preferable that the absorbent article has a compressed portion in which the absorbent article is compressed in the width direction, the compressed portion includes a front-rear compressed portion extending in the front-rear direction, the front end of the 11 th bonded portion is located on the front side with respect to the front end of the front-rear compressed portion, and the front end of the 21 st bonded portion is located on the front side with respect to the front end of the front-rear compressed portion.

According to the absorbent article, the front-rear compressed portion urges the absorbent article to deform into a desired shape so that the absorbent article conforms to the body of the wearer. Further, by disposing at least a part of the 11 th bonded portion and the 21 st bonded portion on the front side with respect to the front-rear compressed portion, the absorbent article is easily returned from the deformed state to its original state along with the return of the clothing from the deformed state to their original state. This makes it easy to alleviate the uncomfortable feeling during use.

In such an absorbent article, preferably, the absorbent article has a compressed portion in which the absorbent article is compressed in the thickness direction, the compressed portion includes a widthwise compressed portion extending in the widthwise direction, and the widthwise compressed portion overlaps with the high rigidity region and spans the non-bonded portion when the absorbent article is viewed in plan in the thickness direction.

According to the absorbent article, in addition to the non-bonded portion, a compressed portion is provided across the width direction of the non-bonded portion, and this makes it easy to reduce the risk of the portions of the 11 th bonded portion being bonded to each other.

In such an absorbent article, preferably, the absorbent body includes a1 st absorbent core and a2 nd absorbent core, the 2 nd absorbent core is disposed on a non-skin side with respect to the 1 st absorbent core in a thickness direction, the high rigidity region is a region where the 1 st absorbent core overlaps with the 2 nd absorbent core when the absorbent body is viewed in a plan view in the thickness direction, the low rigidity region is a region where the 1 st absorbent core does not overlap with the 2 nd absorbent core, the 1 st absorbent core has a larger basis weight (weight per unit area) of the high absorbent polymer than the 2 nd absorbent core, and the 2 nd bonded region has a portion that does not overlap with the 1 st absorbent core when the absorbent article is viewed in a plan view in the thickness direction.

According to the absorbent article, the superabsorbent polymer of the 1 st absorbent core swells by absorbing liquid during use, increasing the rigidity of the high rigidity region, which makes it difficult for the absorbent article to follow the body of the wearer. Even if the bond between the bonded portion and the clothing in the portion overlapping the high rigidity region is liable to peel off, since the 2 nd bonded region which does not overlap the 1 st absorbent body becomes liable to remain bonded to the clothing, the absorbent article is liable to remain fixed to the clothing.

In such an absorbent article, it is preferable that a side end of the 11 th adhesive portion on the furthest side in the width direction is provided on the side of the side end of the side in the width direction with respect to the high rigidity region, and that the 11 th adhesive portion has a portion overlapping with the low rigidity region on the outside of the side in the width direction of the high rigidity region when the absorbent article is viewed in plan in the thickness direction.

According to this absorbent article, even if a force is applied from both sides in the width direction of the absorbent article by the user's legs during use, when the force is released by the user's legs, the 11 th bonded portion overlapping the low rigidity region tends to return the high rigidity region from the deformed state as the clothing that contracts in the width direction returns to its original shape accompanied by the outside of one side in the width direction of the high rigidity region H. Therefore, the uncomfortable feeling of the wearer caused by the deformation of the absorbent article is easily reduced.

In such an absorbent article, it is preferable that the other side end in the width direction of the 21 st bonded portion is provided on the other side of the one side end in the width direction of the high rigidity region, and that the 21 st bonded portion has a portion overlapping with the low rigidity region on the inner side of the one side in the width direction of the high rigidity region when the absorbent article is seen in plan view in the thickness direction.

According to this absorbent article, even if a force is applied from both sides of the absorbent article in the width direction by the wearer's legs during use, when the force is released by the user's legs, the clothing that contracts in the width direction returns to its original state accompanied by the outside of one side in the width direction of the high rigidity region H, and the 21 st bonded portion overlapping the high rigidity region tends to return the high rigidity region from the deformed state. Therefore, the uncomfortable feeling of the wearer caused by the deformation of the absorbent article is easily reduced.

In such an absorbent article, it is preferable that the 11 th bonded portion and the 21 st bonded portion are separated by a predetermined distance on one side in the width direction, and the length of the non-bonded portion in the width direction is longer than the predetermined distance.

According to such an absorbent article, the area of the non-bonded portion is made larger more easily than in the case where the length of the non-bonded portion in the width direction is longer than the distance between the 11 th bonded portion and the 21 st bonded portion, and bonding of the portion of the 11 th bonded portion is prevented. This makes it easy for the absorbent article to return from the deformed state, making it easy to alleviate the discomfort of the wearer during use.

In the individually packaged absorbent article in which the above-described absorbent article is packaged by the packaging member, it is preferable that the absorbent article has a plurality of fold line portions extending in the width direction in the unfolded state, the plurality of fold line portions include a front fold line portion located farthest from the front side, the front fold line portion has a portion overlapping the high rigidity region when the individually packaged absorbent article is viewed in plan in the thickness direction, and at least a portion of the 21 st bonded portion is located on the front side with respect to the front fold line portion.

According to the individually packaged absorbent article, the rigidity of the high rigidity region reduces wrinkles caused by the front folding line portion. Further, since the state of the 21 st bonded portion located on the front side with respect to the front folding line portion is easily maintained, even if wrinkles are formed in the front folding line portion, the absorbent article is easily returned from the deformed state, and the uncomfortable feeling of the wearer is easily reduced.

In the individually packaged absorbent article in which the absorbent article is packaged by the packaging member, it is preferable that a release sheet is provided between the adhesive portion and the packaging member, the release sheet is detachably fixed to the adhesive portion, and at least a portion of a boundary between the high rigidity region and the low rigidity region overlaps the release sheet when the individually packaged absorbent article in the unfolded state is viewed in plan in the thickness direction.

According to the individually packaged absorbent article, the boundary between the high rigidity region and the low rigidity region of the absorbent article is a portion that is liable to be deformed due to the difference in rigidity, and therefore, by overlapping the boundary between the high rigidity region and the low rigidity region with the release sheet, it is easy to reduce the risk of deformation.

First embodiment

Next, as an example of the absorbent article according to the present embodiment, a light incontinence pad will be described. However, the absorbent article is not limited to a light incontinence pad, and examples of other absorbent articles include sanitary napkins, panty liners, and the like, of the type that are fastened to the clothing of the wearer for wearing.

Basic structure of light incontinence pad 1

Fig. 1 is a plan view of a light incontinence pad 1 (hereinafter, also referred to as "pad 1") in an elongated state when viewed from the skin side. Fig. 2 is a plan view of the pad 1 in an elongated state as viewed from the non-skin side. Fig. 3 is a schematic cross-sectional view of the gasket 1 at line C-C of fig. 1, as seen along arrow A-A. In addition, the extended state of the pad 1 is a state in which the pad 1 is extended to remove wrinkles. Specifically, this is a state that: the pad 1 is elongated to be no longer affected by the elastic member coming from the pad 1 and the size of the constituent members of the pad 1 corresponds to or approximates the size of the members themselves.

The pad 1 has a front-rear direction, a width direction, and a thickness direction. In the thickness direction, the side that contacts the skin of the wearer is the skin side, and the opposite side is the non-skin side. In the front-rear direction, the side provided on the abdomen side of the wearer is the front side, and the side provided on the back side of the wearer is the back side. The gasket 1 of the present embodiment has a structure symmetrical in the front-rear direction. In fig. 1, a line C-C and the like are a center line in the front-rear direction, and a line X-X is a center line in the width direction.

Further, the pad 1 has an absorber 2. As shown in fig. 3, the absorbent body 2 is a multilayer absorbent body including a1 st absorbent body 40 having a1 st absorbent core 41 and a 2 nd absorbent body 50 having a 2 nd absorbent core 51, the 2 nd absorbent body 50 being located on the non-skin side in the thickness direction with respect to the 1 st absorbent body 40. The materials are joined by adhesives A1 to a11 such as hot melt adhesives.

The term "multi-layered absorber" refers to a structure in which a plurality of absorbers are stacked on each other in the thickness direction. The absorber 2 of the pad 1 is a multilayer absorber including a 1 st absorber 40 and a2 nd absorber 50, and the 2 nd absorber 50 is located on the non-skin side in the thickness direction with respect to the 1 st absorber 40. In the absorber 2, a larger amount of excreted fluid can be absorbed because excreted fluid is first absorbed by the 1 st absorber 40 located on the skin side, and then, excreted fluid that has been absorbed by the 1 st absorber 40 is absorbed by the 2 nd absorber 50 located on the non-skin side with respect to the 1 st absorber 40. Further, since the excreted fluid that has been absorbed by the first absorber 40 is transferred to the 2 nd absorber 50, it is possible to reduce the amount of excreted fluid remaining in the 1 st absorber 40 and to improve the skin touch during use.

The 1 st absorber 40 includes: the 1 st absorbent core 41, the 1 st skin-side core wrap 42 covering the skin-side surface of the 1 st absorbent core 41, and the 1 st non-skin-side core wrap 43 covering the non-skin-side surface of the 1 st absorbent core 41.

The 1 st absorbent core 41 is made of a superabsorbent polymer (hereinafter, also referred to as "SAP"). The 1 st absorbent core 41 of the present embodiment has no liquid-absorbent fibers (e.g., pulp) and is made of SAP alone. The thickness of the 1 st absorbent core 41 can be made thinner by reducing the basis weight of the liquid-absorbent fibers (pulp) of the 1 st absorbent core 41 or setting them to zero. Further, the smaller the amount of the liquid-absorbent fibers, the less likely the formed liquid-absorbent fibers will collapse due to movement of the wearer or absorption of excreted fluid, so that the 1 st absorbent body 40 will be less likely to be distorted. The 1 st skin-side core wrap 42 and the first non-skin-side core wrap 43 are liquid-permeable sheets, and nonwoven fabrics or the like may be used.

Both ends in the width direction of the 1 st skin-side core wrap 42 are folded back and placed on portions of the non-skin-side surface of the 1 st non-skin-side core wrap 43 so as to surround both ends in the width direction of the first absorbent core 41 and both ends in the width direction of the 1 st non-skin-side core wrap 43. A portion of the fragrance 47 is disposed between the folded back portion of the 1 st skin-side core wrap 42 and the 1 st non-skin-side core wrap 43. The fragrance 47 may mask the odor of the excreted fluid or alleviate the anxiety or anxiety of the wearer who is to use the pad 1.

The 2 nd absorber 50 includes: a 2 nd absorbent core 51; a 2 nd skin-side core wrap 52 covering the skin-side surface of the 2 nd absorbent core 51; and a 2 nd non-skin side core wrap 53 covering the non-skin side surface of the 2 nd absorbent core 51.

The 2 nd absorbent core 51 is an absorbent core obtained by shaping liquid-absorbent fibers (for example, pulp fibers or cellulose-based absorbent fibers) into a predetermined shape. Superabsorbent polymers (SAP) may or may not be added to the liquid absorbent fibers. The 1 st skin-side core wrap 52 and the 2 nd non-skin-side core wrap 53 are liquid-permeable sheets, and tissues, nonwoven fabrics, or the like may be used.

The gasket 1 includes: a top sheet 44, the top sheet 44 being disposed on the skin side with respect to the 1 st skin side core wrap 42; an intermediate sheet 45, the intermediate sheet 45 being disposed between the top sheet 44 and the 1 st skin-side core wrap 42; and a pair of side sheets 61, the pair of side sheets 61 being arranged at both ends of the top sheet 44 in the width direction. The liner 1 further includes a back sheet 54, the back sheet 54 being disposed on the non-skin side with respect to the 2 nd non-skin side core wrap 53.

The absorber 2 includes a high rigidity region H (to be described later) and a low rigidity region L (low rigidity) having a lower rigidity than the high rigidity region H. When the absorbent body 2 as a multilayer absorbent body is viewed from above in the thickness direction, in the absorbent body 2, the region where the 1 st absorbent core 41 and the 2 nd absorbent core 51 overlap is a high rigidity region H, and the region where the 1 st absorbent core 41 and the 2 nd absorbent core 51 do not overlap is a low rigidity region L.

It should be noted that the high rigidity region H and the low rigidity region L of the absorber 2 do not necessarily have to be formed due to overlapping of the absorbers (multilayer absorbers). For example, the rigidity may be different due to the material constituting the absorbent core, or the rigidity may be different due to the different basis weights of the liquid-absorbent fibers provided by the absorbent core.

"Rigidity" refers to the ease with which the 1 st absorbent core 41 and the 2 nd absorbent core 51 deform when subjected to an external force. As the rigidity value for the degree of comparative rigidity, for example, a value obtained by dividing a measured value of the gurley rigidity by the length of the sample piece can be exemplified. The Grignard stiffness was measured according to JIS-L1096 using a Grignard stiffness tester No.311 manufactured by An Tian Seisakusho Co., ltd. In addition, the following method may be employed: visually comparing the difference in basis weight or the difference in constituent members of the 1 st absorbent core 41 and the 2 nd absorbent core 51; or the sheets of the 1 st absorbent core 41 and the 2 nd absorbent core 51 are cut out and their masses are measured, and then the values (g/cm ²) obtained by dividing the measured masses by the area are compared.

When the absorbent article is used for light incontinence like the pad 1, it is preferable that the maximum weight (water retention amount) of the liquid that the absorbent body 2 can absorb is at least 5 times the weight of the pad 1 before wearing (the state in which the pad 1 is taken out from the packaging member 101 to be described later). Immediately after the new pad 1 is put on, the pad 1 is so light in weight that it is hardly perceived, which makes it difficult to cause anxiety or discomfort to the wearer even if the pad 1 is used for a long period of time. On the other hand, by providing the absorber 2 capable of absorbing 5 times or more of the weight of the pad 1 before wearing, the absorber 2 can reliably absorb excrement, so that the risk of leakage of excrement (liquid such as urine) from the pad 1 can be reduced. Further, even if the weight of the pad 1 becomes heavier due to a state where more excrement is stored, the bonded portion 3 (bonded portion) can keep the pad 1 fixed to the clothing.

The measurement of the maximum weight of the liquid that can be absorbed by the absorber 2 can be performed by a known method. For example, first, the weight of the absorber 2 before wearing (in a state where the pad 1 is taken out from the packaging member 101) is measured by a direct-reading balance (for example, electronic scale HF-300 manufactured by milch co. Ltd.) so as to obtain the weight of the absorber 2 before absorption. Then, the absorber 2 was immersed in physiological saline (0.9% NaCl solution) injected into the plate-like container for 30 minutes. When 30 minutes passed, both sides of the absorber 2 were fixed into clips fixed on the rod and kept hanging for 10 minutes. Thereafter, the absorber 2 was put into a dehydrator (150G), and the weight was measured after dehydration for 90 seconds. Then, the water retention amount can be obtained using the formula (weight after dehydration (g) -weight of the absorbent body 2 before wearing (g)).

The top sheet 44 and the intermediate sheet 45 are liquid-permeable sheets. As the liquid-permeable sheet, a nonwoven fabric sheet (for example, a hot air nonwoven fabric sheet, a spun-bonded nonwoven fabric sheet, or the like), an artificial resin film having through holes, or the like can be used. The back sheet 54 is a liquid impermeable sheet. As the liquid-impermeable sheet, an artificial resin film made of Polyethylene (PE) or polypropylene (PP), a composite sheet formed of an artificial resin film and a nonwoven fabric sheet, or the like can be used.

The side sheet 61 is a liquid-impermeable sheet, and constitutes the leg side gathers 60. The pair of leg side gathers 60 are barrier cuffs for preventing leakage of liquid from crevices around the legs of the wearer. For each leg side gather 60, an elastic thread (elastic member) 62 is fixed in a state sandwiched between the corresponding side pieces 61 folded at predetermined portions and in a state elongated in the front-rear direction. The leg side gathers 60 are formed from the front end to the rear end of the pad 1 in the front-rear direction. When the pad 1 is worn, the region located on the inner side of the elastic thread 62 in the width direction stands up from the portion joined by the adhesive A9 toward the skin due to contraction of the elastic thread 62, suppressing side leakage of excrement or the like. It should be noted that instead of the elastic wire 62 (linear elastic member), a sheet-like elastic member such as a stretchable film or the like may be also provided. Further, the number of elastic strands 62 may be any number. Further, in fig. 1 and 2, only the stretchable portions 62a to 62b showing the stretchability of the elastic thread 62 are shown.

The gasket 1 has a compressed portion 70 in which the gasket 1 is compressed in the thickness direction. The compressed portion 70 of the present embodiment is compressed from the skin side in the range from the top sheet 44 to the 2 nd absorber 50 in the thickness direction. In the compressed portion 70, the fiber density of the gasket 1 increases compared with the surrounding. Therefore, by providing the compressed portion 70 in the gasket 1, the gasket 1 becomes less prone to deformation and distortion.

The compressed portion 70 includes: a pair of front-rear compressed portions 71 extending in the front-rear direction and arranged at intervals in the width direction; and a pair of widthwise compressed portions 72, the pair of widthwise compressed portions 72 extending in the widthwise direction between the front-rear compressed portions 71 and being arranged at intervals in the front-rear direction. Each front-rear compressed portion promotes deformation of the pad 71 in the front-rear direction, and promotes transfer of absorbed excreta in the front-rear direction. Each widthwise compressed portion 72 promotes the deformation of the pad 1 in the widthwise direction, and promotes the transfer of the absorbed excrement in the widthwise direction. The front-rear compressed portion 71 has a shape convexly curved inward in the width direction at the central portion in the front-rear direction of the pad 1 (i.e., at the region abutting against the crotch of the wearer). The widthwise compressed portion 72 has a shape that is convexly curved in the front-rear direction.

However, the shape, the number, and the arrangement positions of the compressed portions 70 shown in fig. 1 are merely examples, and the structure thereof is not limited thereto. Further, the linear compressed portions 70 (71, 72) extending in the front-rear direction or the width direction may be groove-shaped compressed portions in which the gasket 1 is continuously compressed in each direction, or may be compressed portions in which a plurality of dot-shaped compressed portions are arranged in a linear manner. Further, the compressed portion 70 may be a compressed portion in which the 1 st absorber 40 and the 2 nd absorber 50 are compressed independently, or the pad 1 may include both of a compressed portion in which the 1 st absorber 40 and the 2 nd absorber 50 are compressed independently, and a compressed portion in which the 1 st absorber 40 to the 2 nd absorber 50 are compressed independently. Further, the gasket 1 does not necessarily have to have the compressed portion 70.

The non-skin side surface of the back sheet 54 (non-skin side surface of the liner 1) is provided with an adhesive portion 3, and the adhesive portion 3 is coated with a hot melt adhesive. The adhesive part 3 is a so-called "slip prevention part", and is adhered to the skin-side surface of the clothing such as underwear of the wearer, so that the pad 1 is fixed to the clothing for use. As shown in fig. 2 and the like, the bonding portion 3 includes a pair of central bonding regions 10 (1 st bonding region) arranged at intervals in the width direction, and side bonding regions 20 (2 nd bonding regions) located outside the central bonding regions 10 in the width direction.

Each of the central adhesive regions 10 has a rectangular shape with a long side extending in the front-rear direction, and is continuously arranged from one end to the other end in the front-rear direction of the gasket 1 in the front-rear direction. The central bonding region 10 includes an 11 th bonding portion 11 and a2 nd bonding portion 12, the 11 th bonding portion 11 being located on the front side with respect to the center C-C in the front-rear direction, and the 12 th bonding portion 12 being located on the rear side with respect to the center C-C in the front-rear direction. Further, the 11 th bonding portion 11 includes: a one-side 11 th bonding portion 11a, the one-side 11 th bonding portion 11a being located on one side with respect to a center X-X in the width direction; and an other side 11 th bonding portion 11b, the other side 11 th bonding portion 11b being located at the other side with respect to the center X-X. The 12 th bonding portion 12 includes: a one-side 12 th bonding portion located on one side with respect to the center X-X in the width direction; and an other side 12 th bonding portion 12b, the other side 12 th bonding portion 12b being located at the other side with respect to the center X-X. The central bonding region 10 of the gasket 1 of the present embodiment is a bonding region constituted by a pair of rectangular shapes, in which the one-side 11 th bonding portion 11a and the one-side 12 th bonding portion 12a located on the one side in the width direction are continuous, and the other-side 11 th bonding portion 11b and the other-side 12 th bonding portion 12b located on the other side in the width direction are continuous.

The side bonding regions 20 each have a rectangular shape with long sides extending in the front-rear direction, and include four bonding portions having a length in the front-rear direction shorter than that of the central bonding region 10. Two side bond areas 20 are located on the front side of the pad 1 and two other side bond areas 20 are located on the rear side of the pad 1. In other words, the pair of side bonding regions 20 are arranged at intervals in the front-rear direction on the outer side in the width direction of the central bonding region 10. Specifically, the side bond regions 20 include: a 21 st bonding portion 21, the 21 st bonding portion 21 being located on the front side with respect to the center C-C in the front-rear direction and on the side with respect to the center X-X in the width direction; a 22 nd bonding portion 22, the 22 nd bonding portion 22 being located on the front side with respect to the center C-C in the front-rear direction and on the other side with respect to the center X-X in the width direction; a 23 rd bonding portion 23, the 23 rd bonding portion 23 being located on the rear side with respect to the center C-C in the front-rear direction and on the side with respect to the center X-X in the width direction; and a 24 th bonding portion 24, the 24 th bonding portion 24 being located on the rear side with respect to the center C-C in the front-rear direction and on the other side with respect to the center X-X in the width direction. The 21 st bonding part 21, the 22 nd bonding part 22, the 23 rd bonding part 23, and the 24 th bonding part 24 according to the present embodiment are bonding parts having the same shape and the same size, but they may have different shapes and different sizes.

Although the basic structure of the gasket 1 has been described above, the structure of the gasket 1 described above is merely an example. The structure of the gasket 1 is not limited thereto. For example, the planar shape of the pad 1 may be asymmetric with respect to the front-rear direction, or the pad 1 does not necessarily have the intermediate sheet 45 and/or the fragrance 47. Further, the 1 st absorbent core 41 and the 2 nd absorbent core 51 may be wrapped in one core wrap, respectively.

Rigidity of absorber 2 and bonded portion 3

Fig. 4 is a schematic view illustrating the pad 1 in a worn state. Fig. 4A shows a state in which the pad 1 is in a worn state and no force is applied inward from the outside in the width direction of the pad 1. Fig. 4B shows a state in which the pad 1 is in a worn state and a force is applied inward from the outside in the width direction of the pad 1. Fig. 4A and 4B are schematic views schematically showing a cross section of the gasket 1 taken along the center C-C in the front-rear direction during use.

There is a possibility that: an absorbent article such as the pad 1, which is fixed to the clothing of the wearer to be worn, is deformed due to the body movement of the wearer and the displacement of the clothing. As shown in fig. 4A, immediately after a new pad 1 is put on, the pad 1 is in a substantially horizontal state. Then, when the wearer's legs exert a force on the clothing and the pad 1 from the outside inward in the width direction, the clothing contracts in the width direction, and the width-direction center portion and the width-direction end portions of the pad 1 protrude toward the skin side. Thus, as shown in fig. 4B, the portion between the center portion and the end portion in the width direction protrudes toward the non-skin side, and this causes the pad 1 to deform into a W shape when viewed in the front-rear direction. As a result, the widthwise central portion of the pad 1 is brought close to the excretory opening of the wearer from which excretory substances are discharged, so that the pad 1 is easily fitted to the body of the wearer. Preferably, when the laundry is returned to its position and shape before deformation due to the relaxation of the force applied from the outside in the width direction, the pad 1 in the W-shaped state is returned to its shape before deformation as shown in fig. 4A by pulling the pad 1 outward in the width direction.

However, the movement of the human being is complicated, and the pad 1 in the worn state receives forces from various directions. Thus, the deformation of the gasket 1 is not only compression in the width direction, but also the gasket 1 is irregularly twisted or bent. This causes the adhesive portions 3 provided in the non-skin-side surface of the pad 1 to adhere to each other. Once the bond 3 is bonded together, there is a risk that it is difficult to remove the bond, making it difficult for the pad 1 to return to its original shape.

In particular, in the case of the absorber 2 having a high rigidity region as in the pad 1, the high rigidity region suppresses deformation of the absorber 2 (pad 1), but once the absorber 2 (pad 1) is deformed such as bending, so-called wrinkles are caused, making it easy to hold such deformation. Further, in the case where the adhesive parts 3 on the non-skin side surfaces adhere to each other due to the deformation of the pad 1, it is difficult to return the deformed pad 1 to its original shape. This will lead to the risk of the deformed pad 1 giving the wearer a sense of discomfort, the corners of the pad 1 due to deformation and bending causing local irritation to the skin of the wearer and failure to properly receive faeces, the pad 1 causing leakage.

On the other hand, as shown in fig. 5 and 6, when the gasket 1 is viewed from above in the thickness direction, the 11 th bonding portion 11 has a portion overlapping the high rigidity region H, and the 21 st bonding portion 21 has a portion overlapping the low rigidity region L. In addition, the non-adhesive portion 31 where the adhesive portion 3 is not provided is provided in a portion overlapping the high-rigidity region H, and the non-adhesive portion 31 is sandwiched between the 11 th adhesive portion 11 and a portion overlapping the high-rigidity region H from both sides in the width direction. On one side in the width direction of the gasket 1, the side end on one side in the width direction of the 21 st adhesive part 21 is provided outside the side end on one side in the width direction of the portion of the 11 th adhesive part 11 overlapping the high rigidity region H.

Fig. 5 is a schematic diagram showing a high-rigidity region H and a low-rigidity region L overlapped in the thickness direction in the plan view of fig. 2. Fig. 6 is an enlarged view of the front side of the gasket 1 in fig. 5. Fig. 5 and 6 are plan views of the pad 1 when viewed from the non-skin side. In the drawing, a high rigidity region H is indicated by a diagonal line to the lower left, and a low rigidity region L is indicated by a diagonal line to the lower right.

Specifically, as mentioned above, when the absorbent body 2 is viewed from above in the thickness direction, the high rigidity region H is a region where the 1 st absorbent core 41 overlaps the 2 nd absorbent core 51, and the low rigidity region L is a region where the 1 st absorbent core 41 does not overlap the 2 nd absorbent core 51, and is a region where the 2 nd absorbent core 51 is located outside the 1 st absorbent core 41. As shown in fig. 5 and the like, when the absorber 2 of the pad 1 is viewed from above, the 1 st absorbent core 41 has a size compatible with the inside of the 2 nd absorbent core 51, and thus the front end Hf of the high rigidity section H is located at the position of the front end of the 1 st absorbent core 41, and the rear end Hb of the high rigidity section H is located at the position of the rear end of the 1 st absorbent core 41.

When the gasket 1 is viewed from above in the thickness direction, the 11 th bonded portion 11 located on the front side with respect to the center C-C in the front-rear direction has a portion overlapping the high rigidity region H. More specifically, when the gasket 1 is viewed from above in the thickness direction, the rear portion of the 11 th bonding portion 11a on one side and the rear portion of the 11 th bonding portion 11b on the other side overlap the high rigidity region H.

By providing the 11 th bonding portion 11 at a position having a portion overlapping with the high rigidity region H when the pad 1 is viewed from above in the thickness direction, it is made easy to fix a portion of the absorber 2 capable of absorbing more discharged matter to the clothing of the wearer. This makes the absorbent body 2 easy to absorb faeces.

In addition, in a portion overlapping the high rigidity region H when the gasket 1 is viewed from above in the thickness direction, the gasket 1 has a non-bonded portion 31 where the bonded portion 3 is not provided. The non-adhesive portion 31 is sandwiched from both sides in the width direction between the 11 th adhesive portion 11 and the portion where the high rigidity region H overlaps. In the present embodiment, as shown in fig. 5 and the like, the non-bonded portion 31 is provided between the one 11 th bonded portion 11a and the other 11 th bonded portion 11b in the width direction on the front side with respect to the center C-C in the front-rear direction. The non-adhesive portion 31 is sandwiched from both sides in the width direction between a portion where the 11 th adhesive portion 11a and the high-rigidity region H on one side overlap a portion where the 11 th adhesive portion 11b and the high-rigidity region H on the other side overlap.

Even if the bonded portions 3 provided on the non-skin-side surface of the pad 1 are bonded to each other by the movement of the wearer during use, a portion where the bonded portions 3 are in contact with the non-bonded portions 31 is easily formed, which can serve as a starting point for peeling apart the bonded portions of the bonded portions 3 from each other. Thus, the adhesion between the adhesion portions 3 is more easily peeled off than in the case where the non-adhesion portions 31 are not provided.

When the gasket 1 is viewed from above in the thickness direction, in the side bonding region 20, the 21 st bonding part 21 is located on the front side with respect to the center C-C in the front-rear direction and on the side with respect to the center X-X in the thickness direction, and has a portion overlapping with the low rigidity region L. In the gasket 1 of the present embodiment, when the gasket 1 is viewed from above in the thickness direction, the front portion of the 21 st bonded portion 21 overlaps the low rigidity region L. Further, on one side in the width direction of the gasket 1, the side end on one side in the width direction of the 21 st adhesive part 21 is located outside the side end 11ae on one side in the width direction of the portion overlapping the high rigidity region H of the 11 th adhesive part 11a on one side. Incidentally, the side end 11ae of fig. 5 and 6 is the side end of the one-side 11 th bonding portion 11a, and also the side end of one side in the width direction in the portion where the one-side 11 th bonding portion 11a overlaps the high rigidity region H in a plan view.

The low rigidity region L is a region having lower rigidity than the high rigidity region H. Accordingly, the following property of the 21 st bonding portion 21 provided in the portion overlapping the low rigidity region L when the pad 1 is viewed from above in the thickness direction due to bonding with clothing is higher than the following property of the bonding portion 3 provided in the portion overlapping the high rigidity region H due to bonding with clothing. Specifically, as shown in fig. 5 and 6, the following property of the 21 st bonding part 21 in the portion not overlapping the high rigidity region H is higher than the following property of the 11 st bonding part 11a provided at the position overlapping the high rigidity region H in the plan view on the side in the width direction. Thus, even in the case where the portion of the high rigidity region H overlapping the one-side 11 th bonding portion 11a is deformed, the portion of the portion located on the front side with respect to the center C-C in the front-rear direction of the pad 1 and located on the one side in the width direction and overlapping the 21 st bonding portion 21 with the low rigidity region L in a plan view, the portion remains bonded to the clothing, making it easy to keep a state of following the clothing, regardless of whether the high rigidity region H is deformed. In the case where the pad 1 and the clothing are deformed, when a force (hereinafter, also referred to as "restoring force of the clothing") for returning the clothing to the position and the shape before the deformation is applied to the clothing, first, the 21 st bonded portion 21 having high followability is liable to return to the state before the deformation. Then, the 21 st adhesive part 21 pulls the portion of the 11 st adhesive part 11a overlapping the high rigidity region H on one side to one side in the width direction by the restoring force of the clothing, and is easily returned to the state before deformation. In this way, in the case where the absorber 2 has the high rigidity region H as in the pad 1, and the absorber 2 is deformed, or the high rigidity region H has wrinkles, or the adhesive parts 3 provided on the non-skin side surface of the pad 1 are adhered to each other, when the restoring force of the clothing is applied, the 21 st adhesive part 21 provided in the portion overlapping the low rigidity region L in a plan view returns to the position and shape before deformation. Along with this, the high rigidity region H having a portion overlapping with the one 11 th bonding portion 11a can be made to easily return to the original position before deformation, and the bonding between the bonding portions 3 can be made to be more easily peeled off. This makes it easy for the portion of the gasket 1 located on the front side and on one side in the width direction to return to the original shape before deformation.

In this way, the following performance of the pad 1 to the laundry during use is improved on the front side and one side in the width direction of the pad 1, and even if the adhesive portions 3 on the non-skin side surface of the pad 1 are adhered to each other, the pad 1 is easily returned from the deformed state to its original state. This makes it possible to alleviate the discomfort of the wearer, to reduce local irritation to the skin of the wearer caused by deformation of the pad 1, and to reduce the risk of leakage of excreta to the outside of the pad 1. It should be noted that the side bonding region 20 of the pad 1 of the present embodiment includes not only the 21 st bonding portion 21 but also the 22 nd bonding portion 22, the 23 rd bonding portion 23 and the 24 th bonding portion 24, but the side bonding region 20 does not necessarily need to include four bonding portions. By providing at least the 21 st bonding portion 21, the portion of the gasket 1 on the front side and on the side in the width direction is easily restored to the original shape before deformation.

Like the 11 th bonding portion 11, it is preferable that the 12 th bonding portion 12 of the central bonding region 10 has a portion overlapping with the high rigidity region H when the gasket 1 is viewed from above in the thickness direction. In the present embodiment, when the gasket 1 is viewed from above in the thickness direction, the front portion of the one-side 12 th bonding portion 12a and the front portion of the other-side 12 th bonding portion 12b overlap the high rigidity region H. This makes it easy for the pad 1 to return to its original shape before deformation, not only at the front side but also at the rear side of the pad 1.

Similarly, it is preferable that the 22 nd bonding portion 22 located on the front side with respect to the center C-C in the front-rear direction and on the other side with respect to the center X-X in the width direction has a portion overlapping the low rigidity region L when the gasket 1 is viewed from above in the thickness direction. In the present embodiment, when the gasket 1 is viewed from above in the thickness direction, the front portion of the 22 nd bonding portion 22 overlaps the low rigidity region L. In addition, it is preferable that on the other side in the width direction of the gasket 1, the side end on the other side in the width direction of the 22 nd adhesive portion 22 is located outside the side end 11be on the other side in the width direction of the portion overlapping the high rigidity region H of the other 11 th adhesive portion 11 b. This makes it easy for the gasket 1 to return to its original shape before deformation not only on one side in the width direction of the gasket 1 but also on the other side. It should be noted that the side end 11be of fig. 5 and 6 is the side end of the other side 11 th bonding portion 11b, and is also the side end of the other side in the width direction in the portion where the other side 11 th bonding portion 11b overlaps the high rigidity region H in plan view.

Further, more preferably, the side bonding region 20 includes four bonding portions (21 st bonding portion 21, 22 nd bonding portion 22, 23 rd bonding portion 23 and 24 th bonding portion 24), and the 23 rd bonding portion 23 and 24 th bonding portion 24 located on the rear side with respect to the center C-C in the front-rear direction have a portion overlapping the low rigidity region L. In the present embodiment, when the gasket 1 is viewed from above in the thickness direction, the rear portions of the 23 rd bonding portion 23 and the 24 th bonding portion 24 overlap the low rigidity region L. Preferably, on one side in the width direction of the gasket 1, the side end on one side in the width direction of the 23 rd bonding portion 23 is located outside the side end 12ae on one side in the width direction of the portion of the 12 th bonding portion 12a overlapping the high rigidity region H. Preferably, on the other side in the width direction of the gasket 1, the side end on the other side in the width direction of the 24 th bonding portion 24 is located outside the side end 12be on the other side in the width direction in the portion overlapping the high rigidity region H of the 12 th bonding portion 12 b. This makes it easy for the pad 1 to return to its original shape before deformation, not only at the front side but also at the rear side of the pad 1.

Further, it is preferable that the non-adhesive portion 31 is provided at the central portion in the width direction and is continuous from the front end to the rear end of the 11 th adhesive portion 11, and as shown in fig. 5, it is preferable that it is continuous from the front end to the rear end of the central adhesive region 10 in the width direction.

In the wearing state, the 11 th adhesive portion 11 is fixed to the clothing, however, the non-adhesive portion 31 sandwiched in the 11 th adhesive portion 11 (11 a, 11 b) in the width direction is a portion not fixed to the clothing. As shown in fig. 4B, this makes it easy to cause deformation in which the widthwise central portion protrudes toward the skin side. In addition, even if the widthwise central portion of the pad 1 excessively protrudes toward the skin side, or even if portions of the central adhesive region 10 are adhered to each other due to irregular movements of the wearer such as twisting, by continuing the central adhesive region 10 from the front end to the rear end, it is easy to provide portions of the central adhesive region 10 in contact with the non-adhesive portions 31, so that the adhesion between the portions of the central adhesive region 10 is easily peeled off. This makes it easy to alleviate the discomfort of the wearer during use and the local irritation of the skin of the wearer caused by the deformation of the pad 1.

Regarding the central bonding region 10, it is preferable that the front end of the 11 th bonding portion 11 is disposed on the front side with respect to the front end Hf of the high rigidity region H, and it is preferable that the 11 th bonding portion 11 has a portion overlapping with the low rigidity region L on the front side with respect to the front end Hf of the high rigidity region H when the gasket 1 is viewed from above in the thickness direction. Specifically, as shown in fig. 5 and 6, in the gasket 1, the front end of the one-side 11 th bonding portion 11a and the front end of the other-side 11 th bonding portion 11b are disposed on the front side with respect to the front end Hf of the high rigidity section H. When the gasket 1 is viewed from above in the thickness direction, the front end of the 11 th adhesive portion 11a on one side overlaps the low rigidity region L and the front end of the 11 th adhesive portion 11b on the other side overlaps the low rigidity region L on the front side with respect to the front end Hf of the high rigidity region. That is, the 11 th adhesive portion 11 is provided to extend from the low rigidity region L to the high rigidity region H on the front side of the gasket 1.

With the 11 th adhesive part 11 extending from the low rigidity region L to the high rigidity region H, when the garment and the pad 1 are deformed in the wearing state, or when the parts of the 11 th adhesive part 11 are adhered to each other, by pulling the garment forward and returning it to the original position, since the 11 th adhesive part 11 overlapping the low rigidity region L that tends to follow the garment is continued to the part overlapping the high rigidity region H on the front side of the front end Hf with respect to the high rigidity region H, not only the part overlapping the low rigidity region L but also the part overlapping the high rigidity region H is easily pulled. This also makes the pad 1 easy to return to its original shape from deformation in the high rigidity region H, makes it easy to peel off the bonding of the 11 th bonding portion 11 portion, and reduces the uncomfortable feeling of the wearer during use.

Regarding the side bonding regions 20, it is preferable that the length T20 of the 21 st bonding part 21 in the front-rear direction is longer than the length W20 of the 21 st bonding part 21 in the width direction (W20 < T20), as shown in fig. 6. This makes it easy for the 21 st bonding portion 21 to be disposed near the front end of the pad 1. This makes it easy to reduce the risk of the side bonding regions 20 (21 st bonding portions 21, or 21 st bonding portions 21 and 22 nd bonding portions 22) bonding to each other in the width direction, as compared with the case where the length W20 of the 21 st bonding portion 21 in the width direction is longer than the length T20 of the 21 st bonding portion 21 in the front-rear direction while improving the followability of the pad 1 to clothing.

Similarly, the length of the 22 nd bonding portion 22 in the front-rear direction is preferably longer than the length of the 22 nd bonding portion 22 in the width direction. In the pad 1, the following property of the pad 1 to clothing can be improved not only on one side in the width direction but also on the other side, and the risk of the side bonding regions 20 bonding to each other in the width direction is reduced. Further, the length of the 23 rd bonding portion 23 in the front-rear direction is preferably longer than the length of the 23 rd bonding portion 23 in the width direction, and the length of the 24 th bonding portion 24 in the front-rear direction is preferably longer than the length of the 24 th bonding portion 24 in the width direction. Further, on the rear side of the pad 1, the adhesion between the side adhesion regions 20 is easily reduced while the follow-up property to the clothing is improved.

As shown in fig. 6, the length W31 of the non-bonded portion 31 in the width direction is preferably longer than the length W20 of the 22 nd bonded portion 22 in the width direction (W31 > W20). The distance between 11 th bonded portions 11 (11 a, 11 b) can be increased as compared with the case where the length W31 in the width direction of non-bonded portion 31 is shorter than the length W20 in the width direction of 22 nd bonded portion 22, and this makes it easy to reduce the risk of 11 th bonded portions 11 bonding to each other.

In addition, it is preferable that the rear end of the 21 st bonding part 21 is provided on the rear side with respect to the front end Hf of the high rigidity section H, and it is preferable that the 21 st bonding part 21 has a portion overlapping with the high rigidity section H on the rear side with respect to the front end Hf of the high rigidity section H when the gasket 1 is viewed from above in the thickness direction. That is, as shown in fig. 5 and 6, on the front side of the gasket 1, the 21 st bonding portion 21 is preferably provided to extend from the low rigidity region L to the high rigidity region H.

As a result, even in the case where the clothing and the pad 1 are deformed to contract in the front-rear direction, or in the case where the central bonding region 10 overlapping the high rigidity region H in plan view is bonded to each other, since the 21 st bonding portion 21 overlapping the high rigidity region H is continued to the portion overlapping the low rigidity region L at the rear side of the front end Hf with respect to the high rigidity region H, it is made easier to pull the high rigidity region H forward following the clothing by the restoring force of the clothing. It also makes it easy for the high rigidity region H to return from the deformed state to the horizontal shape before deformation and to extend outward in the width direction. Further, the bonding between the central bonding regions 10 is made easy to peel, so that the discomfort of the wearer is easily alleviated.

As shown in fig. 5 and 6, it is preferable that the front end of the 21 st bonding part 21 is located on the front side with respect to the front end of the 11 th bonding part 11. Specifically, on one side in the width direction of the gasket 1, the front end of the 21 st bonding portion 21 is located on the front side with respect to the front end of the one side 11 th bonding portion 11a, and the 21 st bonding portion 21 projects forward beyond the one side 11 th bonding portion 11a.

By providing the 21 st bonding part 21 on the front side of the 11 th bonding part 11 having a portion overlapping with the high rigidity region H in a plan view, it is easy to keep the 21 st bonding part 21 fixed to the clothing regardless of whether the high rigidity region H is deformed. This makes it easy to keep the state in which the pad 1 is fixed to the laundry and follows the laundry. In addition, as shown in fig. 5 and the like, even in the case where not only the 11 th bonding portion 11 and the 21 st bonding portion 21 but also other bonding portions such as the 22 nd bonding portion 22 are provided, the 21 st bonding portion 21 and the 22 nd bonding portion 22 may be in a state of being separated in the width direction. This makes it easy to reduce the risk of the 21 st bond 21 adhering to the 11 th bond 11 or 22 nd bond 22.

Fig. 6 shows a longest portion M-M of the longest length in the width direction of the pad 1 on the front side with respect to the center in the front-rear direction of the pad 1, and a narrowest portion N-N of the shortest length in the width direction E1 of the pad 1. The longest portion M-M of the gasket 1 in the present embodiment is located on the front side with respect to the high rigidity region H, and the narrowest portion N-N is the central portion in the front-rear direction.

Preferably, the 21 st bonding portion 21 is provided at the longest portion M-M. By providing the 21 st adhesive portion 21 in the longest portion M-M on the front side of the pad 1, the portion having the longest length in the width direction can be fixed to the clothing so as to follow the clothing. This makes it easy to reduce the risk of the pad 1 in the worn state shifting or deforming on the clothing, and to alleviate the uncomfortable feeling of the wearer.

Further, it is preferable that the side end on one side in the width direction of the bonding portion 3 is separated from the side end on one side in the width direction of the pad 1 at the narrowest portion N-N. In the gasket 1 of the present embodiment, the 11 th bonding portion 11 is provided at the narrowest portion N-N as the bonding portion 3. At the narrowest portion N-N, the side end of the side 11 th bonding portion 11a is separated from the side end of the side of the pad 1 in the width direction, and at the narrowest portion N-N, the bonding portion 3 is not provided on the outer side of the side 11 th bonding portion 11a in the width direction. As a result, as shown in fig. 4B, in the pad 1 in the worn state, the portion located on one side in the width direction with respect to the one-side 11 th adhesive portion 11a is not fixed to the clothing, and this makes the portion easily deformed so as to protrude toward the skin side. Thus, even when a force is applied to the pad 1 from the outside toward the skin side in the width direction, the pad 1 becomes liable to be deformed into a shape (W-like shape) conforming to the body of the wearer, and is liable to be fitted to the body of the wearer.

For each side bonding region 20, preferably, at least a part of the side bonding region 20 is disposed outside the corresponding front-rear compressed portion 71 in the width direction. The front-rear compressed portion 71 causes the pad 1 to deform into a desired shape that is folded in the front-rear direction, so that the pad 1 is easily fitted to the body of the wearer. Further, the side bonding regions 20 provided on the outer sides of the front-rear compressed portions 71 in the width direction make it easy for the pad 1 to follow the clothing. As a result, with respect to the deformed clothing and the pad 1 in the worn state, even if the front-rear compressed portion 71 is deformed in the state where the clothing is returned to its original position, the portion located on the outer side in the width direction of the front-rear compressed portion 71 is pulled outward in the width direction by the restoring force of the clothing, so that the pad 1 is easily returned from the deformed state to its state before being deformed. By bringing the pad 1 into a state close to the state before deformation, the uncomfortable feeling of the wearer is easily reduced.

Further, it is preferable that the front end of the 11 th bonding portion 11 is disposed on the front side with respect to the front end of the front-rear compressed portion 71, and the front end of the 21 st bonding portion 21 is disposed on the front side with respect to the front end of the front-rear compressed portion 71. As shown in fig. 5 and 6, in the gasket 1 of the present embodiment, the front end of the 11 th bonding portion 11a on one side and the front end of the 11 th bonding portion 11b on the other side are provided on the front side with respect to the front end of the front-rear compressed portion 71, and the front end of the 21 st bonding portion 21 is provided on the front side with respect to the front end of the front-rear compressed portion 71. That is, when the gasket 1 is viewed from above, the portion located on the front side with respect to the front-rear compressed portion 71 has the portion of the 11 th bonding portion 11 and the portion of the 21 st bonding portion 21 that do not overlap with the front-rear compressed portion 71.

Accordingly, the front-rear compressed portion 71 urges the pad 1 to deform toward a desired shape, so that the pad 1 is easily fitted to the body of the wearer. In addition, by providing at least a part of each of the 11 th bonding portion 11 and the 21 st bonding portion 21 on the front side with respect to the front-rear compressed portion 71, even if the pad is deformed in the wearing state, when the restoring force of the clothing is applied, the portion located on the front side with respect to the front-rear compressed portion 71 becomes easy to return the shape and position of the pad 1 to the state before the deformation by the 11 th bonding portion 11 and the 21 st bonding portion 21. By bringing the pad 1 into a state close to the state before deformation, the uncomfortable feeling of the wearer is easily reduced.

As for the width-direction compressed portion 72 of the compressed portion 70, as shown in fig. 5 and 6, it is preferable that the width-direction compressed portion 72 overlaps with the high rigidity region H and spans the non-bonded portion 31 when the gasket 1 is viewed from above in the thickness direction. The widthwise compressed portion 72 is a portion that is easily bent in the widthwise direction but is not easily bent in the front-rear direction substantially orthogonal to the widthwise direction. Thus, the gasket 1 has not only the non-bonded portion 31 but also the compressed portion 72 across the width direction of the non-bonded portion 31, and this makes it possible to further reduce the risk that the gasket 1 is folded in the front-rear direction and the 11 th bonded portions 11 (11 a, 11 b) are bonded to each other.

As for the absorber 2, as described above, the pad 1 includes a plurality of layers of absorbers in which the 1 st absorber 40 and the 2 nd absorber 50 are stacked on each other in the thickness direction. Further, the absorbent body 2 includes the 1 st absorbent core 41 of the 1 st absorbent body 40 and the 2 nd absorbent core 51 of the 2 nd absorbent body 50, and the second absorbent core 51 is positioned on the non-skin side with respect to the first absorbent core 41 in the thickness direction. Further, when the absorbent body 2 is viewed from above in the width direction, the high rigidity region H is a region where the 1 st absorbent core 41 and the 2 nd absorbent core 51 overlap, and the low rigidity region L is a region where the 1 st absorbent core 41 and the 2 nd absorbent core 51 do not overlap. In the liner 1 including a multilayer absorber, it is preferable that the 1 st absorbent core 41 has a higher basis weight (g/cm ²) of a superabsorbent polymer (SAP) than the 2 nd absorbent core 51, and it is preferable that the side bond regions 20 have portions that do not overlap with the 1 st absorbent core 41 when the liner 1 is viewed from above in the thickness direction.

The 1 st absorbent core 41 has a superabsorbent polymer (SAP) having a larger basis weight (g/cm ²) than the 2 nd absorbent core 51, so that the thickness of the 1 st absorbent core 41 can be reduced. Moreover, the superabsorbent polymer (SAP) tends to have a slower absorption rate than the liquid-absorbent fibers (e.g., pulp fibers), which makes it easy to transfer the excrement received by the 1 st absorbent core 41 on the skin side to the 2 nd absorbent core 51 on the non-skin side with respect to the 1 st absorbent core 41 in the high-rigidity region H. However, in the wearing state, when the superabsorbent polymer (SAP) of the 1 st absorbent core 41 disposed on the skin side swells due to absorption of excrement (liquid), the pad 1 becomes less likely to follow the body of the wearer in order to increase the rigidity of the high rigidity region H. In particular, in the case of a light incontinence pad 1 that absorbs urine, a large amount of liquid (urine) can be absorbed, and this increases the rigidity of the high rigidity region H, stiffens the high rigidity region H, and thus makes the pad 1 less likely to follow the body of the wearer. This results in a risk that the adhesion between the garment and the portion overlapping the high rigidity region H is liable to be peeled off in a plan view. On the other hand, when the liner 1 is viewed from above in the thickness direction, the side adhesive region 20 has a portion that does not overlap the 1 st absorbent core 41, and this makes it easy to maintain adhesion between the garment and the side adhesive region 20 that overlaps the high rigidity region H in plan view, and to maintain the liner 1 fixed to the garment.

Comparison of the basis weights of superabsorbent polymers (SAP) may be performed using known methods. For example, a visual comparison method or a comparison method based on pictures obtained by an electron microscope may be used. Alternatively, the basis weight may be calculated as follows: samples were cut from the 1 st absorbent core 41 and the 2 nd absorbent core 51 to obtain the amount of SAP per predetermined area. In the case where the 1 st absorbent core 41 is formed of only SAP, the mass of the sample becomes the mass of SAP.

Further, it is preferable that the adhesive portion 3 is located outside the stretchable portions 62a to 62b of the elastic wire 62 in the front-rear direction. As shown in fig. 2, in the gasket 1, the 11 th bonding portion 11 (central bonding region 10), the 21 st bonding portion 21 (side bonding region 20), and the 22 nd bonding portion (side bonding region 20) have portions located on the front side with respect to the stretchable portions 62a to 62 b. Further, the 12 th bonding part 12 (central bonding region 10), the 23 rd bonding part 23 (side bonding region 20), and the 24 th bonding part 24 (side bonding region 20) have portions located on the rear side with respect to the stretchable parts 62a to 62 b. In other words, it is preferable that the stretchable portions 62a to 62b of the elastic thread 62 not extend to a portion where the adhesive portion 3 is not provided in the front-rear direction at both ends in the front-rear direction of the pad 1. This reduces the risk of excessive shrinkage of the pad 1 in the front-rear direction caused by the elastic thread 62, so that the risk of positional movement of the pad 1 relative to the clothing and deformation of the pad 1 caused by excessive shrinkage of the pad 1 in the front-rear direction can be reduced.

It should be noted that although the pad 1 has an elastic member that stretches in the front-rear direction as the elastic thread 62 that stands up the leg side gathers 60, the present invention is not limited thereto. For example, the following structure may be adopted: the leg side gathers 60 are not constituted, the side faces 61 wrap the top sheet 44, the intermediate sheet 45, and the 1 st absorbent body 40, and elastic threads 62 that stretch in the front-rear direction are fixed to the side sheets 61. With this structure, the cross-sectional shape of the 1 st absorber 40 when the 1 st absorber 40 is erected toward the skin side and the pad 1 is viewed in the front-rear direction can be made into a dish shape. The 1 st absorbent body 40 having a dish shape is easy to prevent excrement from leaking to the outside of the pad 1 in the width direction. Similarly, the following structure may be adopted: the side sheet 61 wraps the top sheet 44, the intermediate sheet 45, the 1 st absorber 40, and the 2 nd absorber 50, and elastic threads 62 that stretch in the front-rear direction are fixed to the side sheet 61. By making the cross-sectional shapes of the 1 st absorber 40 and the 2 nd absorber 50 become dish-like shapes when the 1 st absorber 40 and the 2 nd absorber 50 stand up toward the skin side and the pad 1 is viewed in the front-rear direction, it is made easy to prevent excrement from leaking to the outside of the pad 1 in the width direction.

Package 100

Preferably, the pad 1 is distributed and provided to the wearer in an individually wrapped package (not shown). As shown in fig. 7, the package 100 of the gasket 1 includes: the liner 1 is placed on the packaging member 101 via the release sheet 102, folded together with the packaging member 101 at two fold line portions extending in the width direction, and fixed with the fastening tape 103. Fig. 7 is a schematic view illustrating the package 100 in the unfolded state.

The packing member 101 is a sheet-like packing member that individually wraps the pad 1, and is a member that is removed when the pad 1 is used. As a material of the packaging member 101, for example, various films such as a plastic film or a nylon film, a nonwoven fabric, a film obtained by laminating nonwoven fabrics, or the like can be used.

The release sheet 102 is a substantially rectangular sheet-like member, and is provided between the packaging member 101 and the adhesive portion 3 on the non-skin-side surface of the liner 1. The release sheet 102 has a face which faces the packaging member 101 and is fixed to the packaging member 101 so as not to be peeled off. The release sheet 102 also has a face which faces the adhesive portion 3 (non-skin side face of the liner 1) and is subjected to a releasable treatment using silicone or the like. The release sheet 10 is releasably adhered to the adhesive portion 3. In the packaged state, the release sheet 10 is detachably fixed to the adhesive portion 3, and is a member that is removed when the liner 1 is used like the packaging member 101.

As shown in fig. 7, the package 100 in the "unfolded state" refers to a state in which: the package 100 in the packaged state is opened and the package member 101 and the expandable portion of the folded portion of the pad 1 are expanded. The package 100 in the "packaged state" refers to a state in which: the predetermined portions of the package 100 in the unfolded state, specifically, the 1 st folding line portion F1 and the 2 nd folding line portion F2, are folded with the skin side panels facing inward, and both ends of the package member 101 in the width direction are joined together by, for example, welding, to seal.

In the package 100 in the unfolded state according to the present embodiment, as shown in fig. 7, among the plurality of fold line portions F1 and F2, the 1 st fold line portion F1 is the front fold line portion located furthest to the front side, and the 2 nd fold line portion F2 is the rear fold line portion located furthest to the rear side.

In addition, since the pad 1 has a thickness, the fold line portions F1 and F2 are regions having a width in the front-rear direction. The positions of the apexes of the fold line portions F1 and F2 folded into the mountain shape are taken as the center lines of the fold line portions F1 and F2. Specifically, the center lines of the fold line portions F1 and F2 are obtained as follows: in a state where a weight (for example, 200 g) is placed on the plane of the package 100 in the folded state via a plate larger than the plane of the package 100, the package 100 protrudes furthest. Then, the maximum thickness of the package 100 (the cushioning 1+ packaging member 101) at the fold line portions F1 and F2 is set to t. In this case, the regions separated by pi t/2 on both sides in the front-rear direction from the center line of the fold line portions F1 and F2 of the liner 1 are respectively taken as the fold line portions F1 and F2.

However, the present invention is not limited thereto. For example, the cushion 1 and the packing member 101 may be folded respectively, the number of fold lines extending in the width direction may be 3 or more, and the cushion 1 may be folded along the fold lines extending in the width direction and the fold lines extending in the front-rear direction. Furthermore, it is not necessary to provide the release sheet 102.

In the unfolded state, it is preferable that the 1 st fold line portion F1 has a portion overlapping the high rigidity region H when the package 100 is viewed from above in the thickness direction, and it is preferable that at least a portion of the 21 st adhesive portion 21 is provided on the front side with respect to the 1 st fold line portion F1. As shown in fig. 7, in the package 100 of the present embodiment, when the package 100 is viewed from above in the thickness direction, the 1 st fold line portion F1 overlaps the high rigidity region H, and also overlaps the 21 st adhesive portion 21, and the front portion of the 21 st adhesive portion 21 is provided on the front side with respect to the 1 st fold line portion F1.

Since the high rigidity region H is a portion having high rigidity, even if the cushion 1 in the packaged state is folded at the 1 st folding line portion F1, the high rigidity region H of the cushion 1 in the unfolded state or the worn state is easily kept in a flat surface. This makes it easy to alleviate the deformation of the gasket 1 caused by the wrinkles. Since the pad 1 in the wearing state is easy to maintain a state in which the 21 st adhesive part 21 located on the front side with respect to the 1 st folding line part F1 is fixed to the clothing, even if wrinkles are formed in the pad 1 by the 1 st folding line part F1 and the pad 1 in the wearing state is deformed, the pad 1 is easy to return from the deformed state by the restoring force of the clothing, and the uncomfortable feeling of the wearer is easy to be alleviated.

Further, it is preferable that at least a part of the boundary between the high rigidity region H and the low rigidity region L overlaps the release sheet 102 when the package 100 in the developed state is viewed from above in the thickness direction. The boundary between the high-rigidity region H and the low-rigidity region L is a portion that is easily deformed due to the difference in rigidity. Thus, by overlapping the boundary between the high-rigidity region H and the low-rigidity region L with the release sheet 102, deformation at the boundary between the high-rigidity region H and the low-rigidity region L of the package 100 in the packaged state or in the unfolded state is made easy to be reduced. In the package 100 of the present embodiment, the low rigidity region L is larger than the high rigidity region H in a plan view as shown in fig. 7, and the entire high rigidity region H overlaps with the low rigidity region L. Thus, the outer end of the high rigidity region H is the boundary between the high rigidity region H and the low rigidity region L. When the package 100 is viewed from above, the width-direction central portion located at the front end of the high-rigidity region H overlaps the release sheet 102, and the width-direction central portion located at the rear end of the high-rigidity region H overlaps the release sheet 102. Accordingly, in the package 100 in the package state or the unfolded state, the risk of causing deformation in the width direction at the boundary between the high rigidity region H and the low rigidity region L at the front side of the package 100 and deformation in the width direction at the boundary between the high rigidity region H and the low rigidity region L at the rear side of the package 100 can be reduced.

Modification of the first embodiment

Fig. 8 is a plan view of a modified example of the first embodiment when viewed from the non-skin side, and fig. 9 is a plan view of a pad 1B of the modified example of the first embodiment when viewed from the non-skin side. Hereinafter, with reference to fig. 8 and 9, portions of light incontinence pads 1A and 1B (hereinafter also referred to as "pads 1A" and "pads 1B") different from the first embodiment will be mainly described. The same reference numerals are used for the components common to the structure of the first embodiment, and detailed description of the basic structure thereof is omitted.

Mild incontinence pad 1A

The gasket 1 described above has the non-bonded portion 31 located at the center portion in the width direction, and the central bonded region 10 including the pair of 11 th bonded portions 11 (one 11 th bonded portion 11a, the other 11 th bonded portion 11 b) located at both sides of the non-bonded portion 31, but the present invention is not limited thereto. As shown in fig. 8, the gasket 1A may have a structure such that: one central bonding region (1 st bonding region) includes one 11 th bonding portion 11, and a non-bonding portion 31 having no bonding portion 3 is disposed inside the 11 th bonding portion 11 (central bonding region 10).

For the gasket 1A, the 11 th bonding portion 11 located on the front side with respect to the center C-C in the front-rear direction has a portion overlapping with the high rigidity region H when the gasket 1A is viewed from above in the thickness direction. The non-adhesive portion 31 provided in the portion overlapping the high rigidity region H is sandwiched from both sides in the width direction between the 11 th adhesive portion 11 and the portion overlapping the high rigidity region H. When the gasket 1A is viewed from above in the thickness direction, the 21 st bonding part 21 is located on the front side with respect to the center C-C in the front-rear direction in the side bonding region 20, and is located on the side with respect to the center X-X in the width direction, and has a portion overlapping with the low rigidity region L. On one side in the width direction of the gasket 1A, the side end on one side in the width direction of the 21 st adhesive part 21 is located outside the side end 11ae on one side in the width direction of the portion of the 11 th adhesive part 11 overlapping the high rigidity region H. As a result, even if the adhesive portions 3 on the non-skin side surfaces of the pad 1 are adhered to each other in the worn state, adhesion between the adhesive portions 3 is more easily peeled off than in the case where the non-adhesive portions 31 are not provided. In addition, the 21 st bonding portion 21 overlapped with the low rigidity region L is bonded to the clothing, so that the following property of the pad 1A to the clothing is improved. Thus, even if the clothing and the pad 1A are deformed, the portion of the 11 th adhesive portion 11 overlapping the high rigidity region can be easily returned from the deformed state by the restoring force of the clothing. This can make the pad 1A easily return from the deformed state on the front side and on one side in the width direction, so that the discomfort of the wearer and the risk of leakage of excrement are easily reduced.

Similar to the gasket 1, the shape and number of the central bonding region 10 and 11 th bonding portion 11 may be arbitrarily changed. Further, in the pad 1 and the pad 1A, the non-adhesive portion 31 has a rectangular shape and is disposed at the central portion in the front-rear direction and the central portion in the width direction, but the structure thereof is not limited thereto. The non-bonded portion 31 may have any shape and may be located at any position. However, by disposing the non-adhesive portion 31 at the center portion in the front-rear direction and the center portion in the width direction, the risk of adhesion between the portions of the 11 th adhesive portion 11 can be further reduced, and adhesion can be easily peeled off even if the portions of the 11 th adhesive portion 11 are adhered to each other.

Mild incontinence pad 1b

Although the above-described gasket 1 has the center bonding region 10 and the side bonding regions 20 separated from each other, the present invention is not limited thereto. The central bonding region (1 st bonding region) 10 and the side bonding regions (2 nd bonding region) 20 may be configured as a single unit bonding portion 3. For example, as shown in fig. 9, the pad 1B may include bonding portions 3 constituted by a pair of rectangular bonding regions on both sides in the width direction.

Regarding the gasket 1B, when the gasket 1B is viewed from above in the thickness direction, the 11 th bonding portion 11 (one side 11 th bonding portion 11a, the other side 11 th bonding portion 11B) located on the front side with respect to the center C-C in the front-rear direction has a portion overlapping the high rigidity region H. The non-adhesive portion 31 provided in the portion overlapping the high rigidity region H is sandwiched from both sides in the width direction between the 11 th adhesive portion 11 and the portion overlapping the high rigidity region H. When the gasket 1B is viewed from above in the thickness direction, the 21 st bonding part 21 is located on the front side with respect to the center C-C in the front-rear direction and on the side with respect to the center X-X in the width direction in the side bonding region 20, and has a portion overlapping with the low rigidity region L. On one side in the width direction of the gasket 1B, the side end on one side in the width direction of the 21 st adhesive part 21 is located outside the side end 11ae on one side in the width direction of the portion of the 11 th adhesive part 11 overlapping the high rigidity region H.

As a result, even if the adhesive portions 3 on the non-skin side surfaces of the pad 1 are adhered to each other in the worn state, the adhesion between the adhesive portions 3 is easily peeled off as compared with the case where the non-adhesive portions 31 are not provided. In addition, the adhesion of the 21 st adhesion portion 21 overlapping the low rigidity region L to the clothing improves the followability of the pad 1A to the clothing. Thus, even if the clothing is deformed with the pad 1A, the portion of the 11 th adhesive part 11 overlapping the high rigidity region is easily returned from the deformed state by the restoring force of the clothing. This enables the pad 1A to return from the deformed state on the front side and on one side in the width direction, which is easy to reduce the discomfort of the wearer and the risk of leakage of excrement.

In addition, in the case where the central bonding region 10 and the side bonding regions 20 are not separated, on the front side with respect to the center C-C in the front-rear direction of the gasket 1B, the portions Da and Db of the bonding portion 3 that overlap the high rigidity region H when the gasket 1B is viewed from above in the thickness direction are 11 th bonding portions 11 (one 11 th bonding portion 11a, the other 11 th bonding portion 11B). Further, the portions E and F overlapping the low rigidity region L are 21 st adhesive portions 21 outside the side ends of the high rigidity region H on one side in the width direction. It should be noted that the portion F, which is a region continuous with the one-side bonding portion 11a in the width direction, is the 21 st bonding portion 21, and is used as the 11 th bonding portion 11. The portion G, which is a region continuous with the one-side bonding portion 11a in the front-rear direction and continuous with the 21 st bonding portion 21 in the width direction, is the 11 th bonding portion 11 and is used as the 21 st bonding portion 21.

Although the embodiments of the present disclosure have been described above, the above-described embodiments of the present disclosure are merely for ease of understanding the present disclosure, and should not be construed as limiting the present disclosure in any way. The present disclosure may be modified or changed in various ways within a scope not exceeding the gist thereof, and includes equivalents thereof.

In the above-described embodiment, the 1 st absorbent body 40 includes the 1 st absorbent core 41 made of a superabsorbent polymer (SAP), and the 2 nd absorbent body 50 includes the 2 nd absorbent core 51 made of pulp fibers (liquid absorbent fibers) and a superabsorbent polymer (SAP). The invention is not limited thereto. For example, the 1 st absorbent core 41 may include or consist of only liquid-absorbent fibers, and the 2 nd absorbent core 51 may have pulp fibers but no superabsorbent polymer (SAP), or consist of only superabsorbent polymer (SAP).

In the above embodiment, the absorber 2 is a multilayer absorber, but the present invention is not limited thereto. The absorber 2 may have a structure that does not include a plurality of absorbent cores stacked in the thickness direction but includes only one absorbent core. When the absorber 2 includes one absorbent core, the portion of the absorbent core having high rigidity is a high rigidity region H, and the portion having lower rigidity than the high rigidity region H is a low rigidity region L. For example, assume the following case: the absorbent core has liquid-absorbing fibers, and in the absorbent core, a high-rigidity region H is provided at a widthwise central portion and at a front-rear central portion, and a low-rigidity region L is provided outside the widthwise central portion and outside the front-rear central portion. In this case, by making the basis weight of the liquid-absorbent fibers in the low rigidity region L smaller than the basis weight of the liquid-absorbent fibers in the high rigidity region H, the rigidity of the low rigidity region L can be made lower than the rigidity of the high rigidity region H.

Further, in the embodiment described above, the absorber 2 is a multilayer absorber and includes the 1 st absorber 40 (1 st absorbent core 41) and the 2 nd absorber 50 (2 nd absorbent core 51), but the present invention is not limited thereto. The absorber may be a multi-layered absorber in which 3 or more absorbers are stacked in the thickness direction. For example, in the case where the pad has the 1 st absorber, the 2 nd absorber, and the 3 rd absorber stacked thereon in the thickness direction, when the pad is viewed from above in the thickness direction, the region where 2 or more absorbent cores overlap is regarded as a high-rigidity region H, and the region where the absorbent cores do not overlap is regarded as a low-rigidity region L.

In the gasket 1 of the first embodiment described above, the side end of one side 11 th adhesive part 11a in the width direction is provided on the other side with respect to the side end of one side in the width direction of the high rigidity region H, and the one side 11 th adhesive part 11a is provided on the inner side in the width direction of the high rigidity region H. However, the present invention is not limited thereto. The side end of the furthest side in the width direction of the 11 th adhesive part 11 may be provided on the side of the side end of the side in the width direction with respect to the high rigidity region H. And, the gasket may have such a structure that: outside one side in the width direction of the high rigidity region H, the 11 th bonding part 11 has a portion overlapping with the low rigidity region L when the gasket is viewed from above in the thickness direction.

In such a pad, even if a force is applied from both sides in the width direction by the wearer's legs during use, when the force is released by the wearer's legs later, since the 11 th adhesive part 11 overlapped with the low rigidity region L located outside the high rigidity region H in the width direction is adhered to the laundry, a restoring force to return the laundry contracted in the width direction to its original position and shape is generated. Since the 11 th bonding portion 11 overlapping the low rigidity region L is continuous with the portion overlapping the high rigidity region H, it is made easy to apply an outward force in the width direction to the high rigidity region H, so that the high rigidity region H is easily returned from the deformed state. As a result, the uncomfortable feeling of the wearer due to the deformation of the pad is easily reduced.

In addition, the other side end in the width direction of the 21 st adhesive part 21 may be provided at the other side with respect to the one side end in the width direction of the high rigidity region H. And, the gasket may have such a structure that: when the gasket 1 is viewed from above in the thickness direction, the 21 st bonded portion 21 has a portion overlapping the low rigidity region L on the inner side of one side in the width direction of the high rigidity region H.

As a result, even if a force is applied from both sides in the width direction by the legs of the wearer during use, when the force is subsequently released by the legs of the wearer, since the 21 st adhesive part 21 overlapped with the low rigidity region L located on the outer side in the width direction of the high rigidity region H is adhered to the laundry, a restoring force that returns the laundry contracted in the width direction to its original position and shape is generated. Since the 21 st bonding portion 21 overlapping the high rigidity region H is continuous with the portion overlapping the low rigidity region L, an outward force in the width direction is easily applied to the high rigidity region H, so that the high rigidity region H is easily returned from the deformed state. As a result, the uncomfortable feeling of the wearer due to the deformation of the pad is easily reduced.

Further, in the gasket 1 of the first embodiment described above, the side end of the other side in the width direction of the 21 st adhesive part 21 is provided on the other side from the side end of the one side in the width direction of the high rigidity region H, and a region where the high rigidity region H overlaps the 21 st adhesive part 21 in a plan view is provided. The invention is not limited thereto. The other side end of the 21 st adhesive part 21 in the width direction may be provided on one side with respect to the side end of one side of the high rigidity region H. That is, the 21 st bonding portion 21 may be disposed outside the high rigidity region H in the width direction. By disposing the 21 st adhesive part 21 outside the high rigidity region H in the width direction, the following property between the 21 st adhesive part 21 and the clothing is easily improved.

Description of the reference numerals

1. 1A, 1B (light incontinence pad, absorbent article),

2. The absorbent body is provided with a plurality of air-permeable air-,

3. The bonding part is provided with a plurality of bonding parts,

40 St absorbent body, 41 st absorbent core,

42 St skin side core wrap, 43 st non-skin side core wrap,

44 Top sheet, 45 middle sheet, 47 fragrance,

50 Nd absorbent body, 51 nd absorbent core,

52 Nd skin side core wrap, 53 nd non-skin side core wrap,

54 A back side sheet,

10 Central bond area (bond 1 area),

An 11 th bonding portion of the metal sheet,

11A 11 th bonding part on one side, 11b 11 th bonding part on the other side,

12 The 12 th bonding portion,

12A 12 th bonding part on one side, 12b 12 th bonding part on the other side,

20 Side bond regions (bond region 2),

21 St bond, 22 nd bond,

23, 23 Th bond, 24 th bond,

31 A non-adhesive portion of the sheet,

60 Leg side gathers, 61 side panels, 62 elastic strands,

70 Compressed portions, 71 front-rear compressed portions (compressed portions), 72 width-direction compressed portions (compressed portions),

100 Packages, 101 packaging members, 102 release sheets,

F1 st fold line portion (front fold line portion), F2 nd fold line portion,

An area of high rigidity of the H,

L low stiffness region

Claims

1. An absorbent article having a front-rear direction, a width direction, and a thickness direction,

The absorbent article includes:

an absorber that absorbs liquid; and

An adhesive portion on the non-skin side of the absorbent article,

The absorber has:

A high rigidity region; and

A low rigidity region having a lower rigidity than the high rigidity region,

The bond has a1 st bond region and a2 nd bond region,

The 1 st bonded region has an 11 th bonded portion, the 11 th bonded portion being located on the front side with respect to the center in the front-rear direction of the absorbent article,

The 2 nd bonded region has a 21 st bonded portion, the 21 st bonded portion being located on a front side with respect to a center in a front-rear direction of the absorbent article and on a side with respect to a center in a width direction of the absorbent article,

When the absorbent article is viewed in plan in the thickness direction,

The 11 th bond has a portion overlapping the high rigidity region,

The 21 st bond has a portion overlapping the low stiffness region,

A non-adhesive portion is provided at a portion overlapping the high rigidity region, the adhesive portion is not provided at the non-adhesive portion,

The non-adhesive portion is sandwiched from both sides in the width direction between the 11 th adhesive portion and the portion where the high rigidity region overlaps,

On the one side in the width direction,

The side end of the 21 st adhesive part on one side in the width direction is provided outside the side end of the 11 th adhesive part on one side in the width direction of the portion overlapping the high rigidity region.

2. The absorbent article of claim 1, wherein,

The non-bonded portion is provided at a central portion in a width direction, and is continuous from a front end of the 1 st bonded region to a rear end of the 1 st bonded region.

3. The absorbent article of claim 1 or 2, wherein,

The length of the 21 st bonding part in the front-rear direction is longer than the length of the 21 st bonding part in the width direction.

4. The absorbent article as set forth in any one of claim 1 to 3, wherein,

The front end of the 11 th bonding part is arranged at the front side relative to the front end of the high rigidity region, and

On the front side with respect to the front end of the high rigidity region,

The 11 th bonded portion has a portion that overlaps the low rigidity region when the absorbent article is viewed in plan in the thickness direction.

5. The absorbent article of any one of claims 1 to 4, wherein,

The rear end of the 21 st bonding part is arranged at the rear side relative to the front end of the high rigidity region, and

On the rear side with respect to the front end of the high rigidity region,

The 21 st bonded portion has a portion overlapping the high rigidity region when the absorbent article is viewed in plan in the thickness direction.

6. The absorbent article of any one of claim 1 to 5, wherein,

The 21 st adhesive part is provided in the longest part of the absorbent article having the longest length in the width direction of the absorbent article on the front side with respect to the center in the front-rear direction.

7. The absorbent article of any one of claims 1 to 6, wherein,

In the narrowest portion of the absorbent article having the shortest length in the width direction,

The side end of one side in the width direction of the adhesive portion is separated from the side end of one side in the width direction of the absorbent article.

8. The absorbent article of any one of claims 1 to 7, wherein,

The front end of the 21 st bonding part is positioned at the front side relative to the front end of the 11 th bonding part.

9. The absorbent article of any one of claims 1 to 8, wherein,

The absorbent article has a compressed portion in which the absorbent article is compressed in the thickness direction,

The compressed portion includes a front-rear compressed portion extending in the front-rear direction, and

At least a part of the 2 nd bonding region is located outside the front-rear compressed portion in the width direction.

10. The absorbent article of any one of claims 1 to 9, wherein,

The compressed portion includes a front-rear compressed portion extending in the front-rear direction,

The front end of the 11 th bonding part is positioned at the front side relative to the front end of the front-rear compressed part, and

The front end of the 21 st bonding part is located on the front side with respect to the front end of the front-rear compressed part.

11. The absorbent article of any one of claims 1 to 10, wherein,

The compressed portion includes a widthwise compressed portion extending in the widthwise direction, and

When the absorbent article is viewed in plan in the thickness direction,

The width-direction compressed portion overlaps the high-rigidity region and spans the non-bonded portion.

12. The absorbent article of any one of claims 1 to 11, wherein,

The absorber comprises:

A1 st absorbent core; and

A2 nd absorbent core disposed on a non-skin side with respect to the 1 st absorbent core in a thickness direction,

When the absorber is viewed in plan in the thickness direction,

The high stiffness region is the region where the 1 st absorbent core overlaps the 2 nd absorbent core,

The low stiffness region is a region where the 1 st absorbent core and the 2 nd absorbent core do not overlap,

The 1 st absorbent core has a higher basis weight of superabsorbent polymer than the 2 nd absorbent core, and

The 2 nd bonded region has a portion that does not overlap the 1 st absorbent core when the absorbent article is viewed in plan in the thickness direction.

13. The absorbent article of any one of claims 1 to 12 wherein,

A side end of the 11 th adhesive part on the furthest side in the width direction is arranged on the side opposite to the side end of the side in the width direction of the high rigidity region, and

Outside the one side in the width direction of the high rigidity region,

14. The absorbent article of any one of claims 1 to 13, wherein,

The other side end of the 21 st bonding part in the width direction is arranged at the other side of the one side end in the width direction relative to the high rigidity region, and

On the inner side of the one side in the width direction of the high rigidity region,

The 21 st bonded portion has a portion overlapping the low rigidity region when the absorbent article is viewed in plan in the thickness direction.

15. The absorbent article of any of claims 1 to 14,

On the one side in the width direction,

The 11 th bonding part and the 21 st bonding part are separated by a predetermined distance, and

The non-adhesive portion has a length in the width direction longer than the predetermined distance.

16. An individually packaged absorbent article according to any one of claims 1 to 15, wherein the absorbent article is packaged by a packaging member,

In the unfolded state of the device, the device is in a unfolded state,

The absorbent article has a plurality of fold line portions extending in the width direction,

The plurality of fold line portions includes a front fold line portion located furthest from the front side,

The front folding line portion has a portion overlapping the high rigidity region when the individually packaged absorbent article is viewed in plan in the thickness direction, and

At least a portion of the 21 st bond is located on the front side relative to the front fold line.

17. An individually packaged absorbent article according to any one of claims 1 to 15, wherein the absorbent article is packaged by a packaging member,

A release sheet is provided between the adhesive portion and the packaging member,

The release sheet is detachably secured to the adhesive portion, and

At least a part of the boundary between the high rigidity region and the low rigidity region overlaps with the release sheet when the individually packaged absorbent article in the unfolded state is viewed in plan in the thickness direction.