WO2020066574A1

WO2020066574A1 - Absorbent article

Info

Publication number: WO2020066574A1
Application number: PCT/JP2019/035413
Authority: WO
Inventors: 翔士 ▲高▼阪; 山本　純子; 鈴木　智子
Original assignee: ユニ・チャーム株式会社
Priority date: 2018-09-28
Filing date: 2019-09-09
Publication date: 2020-04-02
Also published as: KR20210068015A; CN112752558A; CN112752558B; KR102480172B1

Abstract

The objective of the present invention is to provide an absorbent article (1) that better ensures that re-wetting is limited while still featuring excellent skin feel. This absorbent article (1) comprises a liquid permeable top sheet (2) containing water-holding fibers, a liquid non-permeable back sheet (3), an absorber (4) containing pulps and disposed between the top sheet and the back sheet, and a second sheet (5) containing thermoplastic resin fibers and disposed between the top sheet and the absorber. The second sheet comprises a first section (51) and a pair of second sections (52, 52) linked to the first section via a pair of bend sections (5f, 5f) which extend in the length direction (L) of the absorbent article while being separated from one another in the width direction (W) of the absorbent article. Each of the pair of second sections is bent at the respective bend section so as to be set over the absorbent side or the top sheet side of the first section.

Description

Absorbent articles

The present disclosure relates to an absorbent article.

A liquid-permeable topsheet containing water-retaining fibers such as cotton, a liquid-impermeable backsheet, an absorbent body containing pulp disposed between the topsheet and the backsheet, and a topsheet 2. Description of the Related Art An absorbent article including a second sheet that is disposed between an absorbent and a thermoplastic resin fiber is known (for example, see Patent Document 1). If the top sheet contains cotton, the wearer feels better.

JP 2009-148328 A

However, when pressure is applied to the absorber by, for example, movement of the wearer, liquid such as urine absorbed by the absorber may leak out of the absorber. However, since the cotton contained in the top sheet is excellent in water absorption, the liquid oozing out of the absorber is sucked up by the top sheet, and there is a possibility that so-called re-wet may occur on the skin side of the top sheet. There is a problem.

According to the present disclosure, the following is disclosed.
[Configuration 1]
A liquid-permeable top sheet containing water-retaining fibers,
A liquid-impermeable backsheet,
An absorbent body disposed between the top sheet and the back sheet and including pulp,
A second sheet disposed between the top sheet and the absorber and including a thermoplastic resin fiber,
An absorbent article comprising:
The second sheet is connected to the first portion via a first portion and a pair of folded portions respectively extending in a length direction of the absorbent article while being separated from each other in a width direction of the absorbent article. And a pair of second parts,
The pair of second portions are folded on the absorber side or the top sheet side with respect to the first portion and are overlapped with the first portion, respectively, along the corresponding folded portions. ,
Absorbent articles.
According to Configuration 1, a space surrounded by the second sheet is formed between the top sheet and the absorber, and the liquid can be held in this space. Moreover, since the pair of second portions is folded on the same side as the first portion, a space capable of holding the liquid is formed larger and more reliably. Therefore, rewetting is more reliably limited while maintaining excellent feel.

[Configuration 2]
The configuration according to Configuration 1, wherein the top sheet includes a skin-side layer and a non-skin-side layer stacked on each other, and a water-retaining fiber content ratio of the skin-side layer is higher than a water-retention fiber content ratio of the non-skin-side layer. Absorbent articles.
According to the configuration 2, while the excellent touch is maintained by the skin-side layer, the liquid is reliably directed to the absorber by the non-skin-side layer.

[Configuration 3]
The absorbent article according to Configuration 2, wherein the water-retaining fiber content of the skin-side layer is 100%.
According to the configuration 3, a more excellent touch is provided.

[Configuration 4]
The absorbent article according to any one of the first to third aspects, wherein the second sheet includes an inner sheet and an outer sheet stacked on each other.
According to Configuration 4, a space capable of holding the liquid is also formed between the inner sheet and the outer sheet. Therefore, the rewetting is more reliably limited.

[Configuration 5]
5. The absorbent article according to configuration 4, further comprising a superabsorbent polymer disposed between the inner sheet and the outer sheet.
According to Configuration 5, the absorbing ability of the absorbent article is further enhanced.

[Configuration 6]
The absorbent article according to any one of Configurations 1 to 5, wherein the pair of second portions do not overlap each other.
According to Configuration 6, since the communication path to the space capable of holding the liquid is formed, the liquid is easily guided into the space capable of holding the liquid via the communication path.

[Configuration 7]
The absorbent article according to any one of Configurations 1 to 6, wherein the pair of second portions are folded toward the absorber with respect to the first portion.
According to the configuration 7, the liquid is restricted from flowing from the space capable of holding the liquid to the top sheet by the first portion.

[Configuration 8]
A heat-sealed portion for joining at least the top sheet and the back sheet to each other by heat-sealing, further comprising a heat-sealed portion continuously provided along a peripheral edge of the absorbent article,
The absorbent article is divided into a first area located inside the width direction of the absorbent article, and a second area located outside the width direction than the first area,
The rigidity of the heat-sealed portion located in the second region is lower than the rigidity of the heat-sealed portion located in the first region.
The absorbent article according to any one of the constitutions 1 to 7.
According to Configuration 8, the second sheet including the thermoplastic resin fiber is heat-sealed, so that excellent touch is maintained and the bonding property at the heat-sealed portion is further improved. In addition, the rigidity of the heat-sealed portion located in the second region of the absorbent article is low, thereby limiting the discomfort that the heat-sealed portion may give to the wearer. At the same time, since the stiffness of the heat-sealed portion located in the first region and the stiffness of the heat-sealed portion located in the second region are different from each other, the first region and the second region are separated from each other. The demarcation line becomes a bending starting point, and the second region can be easily moved relative to the first region. Thus, the absorbent article continues to fit more reliably into the skin of the wearer.

[Configuration 9]
The heat-sealed portion located in the first region joins the top sheet and the back sheet together with the second sheet,
The heat-sealed portion located in the second region joins the top sheet and the back sheet together without including the second sheet,
The absorbent article according to constitution 8,
According to the ninth configuration, the low-rigidity heat-sealing portion and the high-rigidity heat-sealing portion are realized with a simple configuration.

[Configuration 10]
The absorbent article according to

configuration

8 or 9, wherein a dividing line that separates the first area and the second area from each other is a straight line parallel to a length direction of the absorbent article.
According to the configuration 10, the second region is bent in parallel with the length direction of the absorbent article, so that the absorbent article keeps fitting to the skin of the wearer more reliably.

[Configuration 11]
The absorption according to any one of Configurations 8 to 10, wherein a dividing line that separates the first region and the second region from each other extends along the outer edge in the width direction of the second sheet. Products.
According to the configuration 11, the rigidity of the heat-sealed portion located in the first region and the rigidity of the heat-sealed portion located in the second region are adjusted with a simple configuration.

[Configuration 12]
The absorbent article according to any one of constitutions 8 to 11, wherein the water retention fiber content of the top sheet is 40% or more.
According to the configuration 12, a better touch is provided.

[Configuration 13]
The absorbent article according to any one of the constitutions 8 to 12, wherein the absorbent contains 10% by mass or more of a superabsorbent polymer.
According to the thirteenth aspect, an absorbent article suitable for an incontinence pad, particularly a light incontinence pad is provided.

リ Rewetting can be more reliably limited while maintaining excellent feel.

FIG. 1 is a plan view of an absorbent article according to an embodiment according to the present disclosure. FIG. 2 is a schematic cross-sectional view along the line II-II in FIG. FIG. 3 is a schematic cross-sectional view of the topsheet of the embodiment according to the present disclosure. 4A to 4D are schematic side views illustrating the structure of the second sheet according to the embodiment of the present disclosure. FIG. 5 is a schematic cross-sectional view similar to FIG. 2 of an absorbent article according to another embodiment according to the present disclosure. FIG. 6 is a plan view of an absorbent article according to still another embodiment according to the present disclosure. FIG. 7 is a schematic sectional view taken along line VII-VII of FIG. FIG. 8 is a schematic cross-sectional view along the line VIII-VIII in FIG. FIG. 9 is a schematic partial plan view of an absorbent article according to still another embodiment according to the present disclosure. FIG. 10 is a schematic longitudinal end view of an absorbent article according to still another embodiment according to the present disclosure.

FIGS. 1 and 2 show a plan view and a schematic cross-sectional view of an absorbent article 1 according to an embodiment of the present disclosure, respectively. The absorbent article 1 of the embodiment according to the present disclosure includes a light incontinence pad. In another embodiment (not shown) according to the present disclosure, the absorbent article 1 comprises, for example, a panty liner, a sanitary napkin, a disposable diaper, and the like. In the drawings, L, W, and T indicate the length direction, the width direction, and the thickness direction of the absorbent article 1, respectively. In FIG. 1, CL indicates a center line in the length direction L, and CW indicates a center line in the width direction W. The absorbent article 1 according to the embodiment of the present disclosure is symmetric with respect to each of the longitudinal center line CL and the lateral center line CW.

Referring to FIGS. 1 and 2, an absorbent article 1 according to an embodiment of the present disclosure includes a liquid-permeable top sheet 2 including a water-retaining fiber, a liquid-impermeable back sheet 3, and a top sheet 2. An absorbent body 4 is disposed between the back sheet 3 and includes pulp, and a second sheet 5 is disposed between the top sheet 2 and the absorbent body 4 and includes thermoplastic resin fibers. The absorbent article 1 of the embodiment according to the present disclosure further includes another second sheet 6 disposed between the top sheet 2 and the second sheet 5 and including a thermoplastic resin fiber. The top sheet 2, the back sheet 3, the absorber 4, the second sheet 5, and another second sheet 6 are stacked on each other in the thickness direction T. In the embodiment according to the present disclosure, the top sheet 2 and the back sheet 3 have substantially the same size in the length direction L and the width direction W. Further, in the embodiment according to the present disclosure, the absorber 4, the second sheet 5, and the second sheet 6 are smaller than the top sheet 2 and the back sheet 3 in the length direction L and the width direction W.

吸収 The absorbent article 1 according to the embodiment of the present disclosure further includes a pair of side sheets 7 extending in the length direction L at both ends in the width direction W of the absorbent article 1. The

side sheets

7, 7 of the embodiment according to the present disclosure are provided so as to sandwich the top sheet 2 and the back sheet 3, respectively. Further, each of the

side sheets

7, 7 of the embodiment according to the present disclosure includes an elastic member 7e that is extended in the length direction L. In the embodiment shown in FIG. 2, the elastic member 7e includes two rubber threads.

吸収 The absorbent article 1 of the embodiment according to the present disclosure further includes an adhesive portion 8 provided on the back sheet 3 on the side opposite to the top sheet 2, and a separator 9 covering the adhesive portion 8. The adhesive portions 8 of the embodiment according to the present disclosure are formed of a plurality of adhesive tapes that extend in the length direction L while being separated from each other in the width direction W. The adhesive portion 8 is used to fix the absorbent article 1 to a wearer's underwear or the like.

In FIG. 2, the dotted line indicates the adhesive layer. That is, in the embodiment shown in FIG. 2, between the top sheet 2 and another second sheet 6, between another second sheet 6 and the second sheet 5, between the second sheet 5 and the absorber 4, An adhesive layer is provided between the back sheet 4 and the back sheet 3 and between the

side sheets

7, 7 and the top sheet 2 and the back sheet 3. Examples of the adhesive include a hot melt adhesive.

吸収 The absorbent article 1 according to the embodiment of the present disclosure further includes a plurality of embossed

portions

10, 10, 11, 11 as shown in FIG. In the embodiment according to the present disclosure, the

embossed portions

10 and 10 are respectively provided along curves that are convex toward the width direction center line CW, and the

embossed portions

11 and 11 are each directed toward the length direction center line CL. Are provided along a concave curve. Further, the

embossed portions

10, 10, 11, 11 of the embodiments according to the present disclosure are each recessed in the thickness direction T from the top sheet 2 to the second sheet 5 or the absorber 4. The

embossed portions

10, 10, 11, 11 are formed by, for example, heat fusion. Note that, for clarity, the

embossed portions

10 and 11 are not illustrated in FIG.

トップ As shown in FIG. 3, the topsheet 2 of the embodiment according to the present disclosure includes the skin-side layer 2a and the non-skin-side layer 2b that are stacked on each other in the thickness direction T. The skin side layer 2a may come into contact with the wearer's skin. The non-skin side layer 2b does not contact the wearer's skin. The skin-side layer 2a and the non-skin-side layer 2b of the embodiment according to the present disclosure are each formed from a sheet-like nonwoven fabric. Further, the skin side layer 2a and the non-skin side layer 2b of the embodiment according to the present disclosure are joined to each other by entanglement. Examples of the confounding include a spunlace method, a water jet method, and an air through method. In the embodiment according to the present disclosure, the top sheet 2 is formed from two layers. In another embodiment (not shown) according to the present disclosure, the topsheet 2 is formed from one layer or three or more layers.

肌 The skin-side layer 2a of the embodiment according to the present disclosure contains water-retaining fibers without containing thermoplastic resin fibers. In another embodiment (not shown) according to the present disclosure, skin-side layer 2a includes water-retaining fibers and thermoplastic fibers. In addition, the non-skin side layer 2b of the embodiment according to the present disclosure includes a water retention fiber and a thermoplastic resin fiber. In another embodiment (not shown) according to the present disclosure, non-skin side layer 2b includes thermoplastic resin fibers without water-retaining fibers. Water retaining fibers have the property of absorbing and retaining moisture. On the other hand, thermoplastic resin fibers are hardly compatible with water or hardly retain water, for example, a property that a contact angle with ion-exchanged water (eg, a specific resistance value of 10 MΩ · cm) is about 80 ° to 100 °. Having.

例 Examples of the components of the water-retaining fiber of the embodiment according to the present disclosure include cellulosic fibers. Examples of cellulosic fibers include natural cellulosic fibers, regenerated cellulosic fibers, purified cellulosic fibers, and semi-synthetic cellulosic fibers. Examples of natural cellulose fibers include plant fibers. Examples of plant fibers include seed hair fibers, kidney skin fibers, vein fibers, and fruit fibers. Examples of seed hair fibers include cotton. Examples of hilt fibers include hemp. Examples of vein fibers include Manila hemp. Examples of fruit fibers include palm. Examples of cotton include Hirsumsum cotton, Barbadense cotton, Arboreum cotton and Herbaqueum cotton. Examples of Hirsumsum species cotton include Upland cotton. Examples of cotton include organic cotton, pre-organic cotton (trademark), and non-organic cotton. Organic cotton means cotton that has been certified by GOTS (Global Organic Textile Standard). Examples of regenerated cellulose fibers include rayon. Examples of rayon include viscose rayon obtained from viscose, polynosic, modal, and cuprammonium rayon obtained from a cuprammonium salt solution of cellulose (also called "cupra"). As an example of the purified cellulose fiber, lyocell, specifically, pulp is dissolved in an aqueous solution of N-methylmorpholine N-oxide to prepare a spinning dope (dope), which is then dissolved in a dilute solution of N-methylmorpholine N-oxide. Extruded fibers are included. Purified cellulose is commercially available, for example, as Tencel®. Examples of semi-synthetic cellulose fibers include semi-synthetic cellulose. Examples of semi-synthetic cellulose include acetate fibers. Examples of acetate fibers include triacetate and diacetate. Above all, from the viewpoints of water retention and feel, natural cellulose fibers are preferred, cotton is more preferred, and Hirsumsum seed cotton is even more preferred.

例 Examples of components of the thermoplastic resin fiber of the embodiment according to the present disclosure include olefin-based resins, polyester-based resins, and polyamide-based resins. Examples of the olefin-based resin include polyethylene (PE), polypropylene (PP), and ethylene-vinyl acetate copolymer (EVA). Examples of the polyester-based resin include polyethylene terephthalate (PET) and polylactic acid (PLA). Examples of the polyamide-based resin include polyamide-based resins such as 6-nylon. Examples of the structure of the thermoplastic resin fiber include a conjugate fiber, a hollow fiber, a modified cross-section fiber, a three-dimensional crimped fiber, and a split fiber. Examples of bicomponent fibers include core-sheath fibers, side-by-side fibers, and island / sea fibers. Examples of irregular cross-section fibers include flat cross-section fibers, Y-section fibers, and C-section fibers. Examples of the three-dimensional crimped fiber include a latent crimped fiber and an actual crimped fiber.

では In the embodiment according to the present disclosure, the water-retaining fiber content of the skin-side layer 2a is higher than the water-retaining fiber content of the non-skin-side layer 2b. In particular, in the embodiment according to the present disclosure, the content ratio of the water-retaining fiber of the skin side layer 2a is 100% by mass. The content of the water-retaining fiber in a certain layer is represented by the mass of the water-retaining fiber contained in the layer with respect to the total mass of the layer.

The backsheet 3 of the embodiment according to the present disclosure is formed from a liquid-impermeable nonwoven fabric, a synthetic resin film, a composite sheet of a nonwoven fabric and a synthetic resin film, or an SMS nonwoven fabric.

吸収 The absorber 4 of the embodiment according to the present disclosure includes pulp without including the superabsorbent polymer (SAP). Moreover, the absorber 4 of the embodiment according to the present disclosure is formed from a sheet-like nonwoven fabric. Such an absorber 4 is also called a tissue. In another embodiment (not shown) according to the present disclosure, absorber 4 comprises pulp and a superabsorbent polymer. Examples of superabsorbent polymers of embodiments according to the present disclosure include starch, acrylic, or amino acid based particulate or fibrous superabsorbent polymers.

セ The second sheet 5 of the embodiment according to the present disclosure includes the inner sheet 5i and the outer sheet 5o stacked on each other. In another embodiment (not shown) according to the present disclosure, second sheet 5 comprises a single sheet. In yet another embodiment (not shown) according to the present disclosure, second sheet 5 comprises three or more sheets that overlap one another. Each of the inner sheet 5i and the outer sheet 5o of the embodiment according to the present disclosure is formed of a sheet-like nonwoven fabric. Further, the inner sheet 5i and the outer sheet 5o of the embodiment according to the present disclosure each include a thermoplastic resin fiber without including a water retention fiber. In another embodiment (not shown) according to the present disclosure, the inner sheet 5i and the outer sheet 5o each include a water-retaining fiber and a thermoplastic resin fiber. Note that the inner sheet 5i and the outer sheet 5o of the embodiment according to the present disclosure are the same as each other. In another embodiment (not shown) according to the present disclosure, the inner sheet 5i and the outer sheet 5o are different from each other. Further configuration of the second sheet 5 of the embodiment according to the present disclosure will be described later.

別 Another second sheet 6 of the embodiment according to the present disclosure is formed from a sheet-like nonwoven fabric. Further, the second sheet 6 of the embodiment according to the present disclosure includes thermoplastic resin fibers without including the water retention fibers. In another embodiment (not shown) according to the present disclosure, another second sheet 6 includes water retaining fibers and thermoplastic fibers. Examples of the water-retaining fiber and the thermoplastic resin fiber are as described above.

水性 The water retention fibers of the skin side layer 2a preferably include organic cotton. The skin-side layer 2a preferably contains 100% by mass of water-retaining fibers. The water-retaining fiber of the non-skin side layer 2b preferably contains non-organic cotton. The thermoplastic resin fiber of the non-skin side layer 2b preferably contains a plurality of components, and more preferably contains PP and PE or PP and PET. The non-skin side layer 2b preferably contains 20 to 80% by mass of the water-retaining fiber and 80 to 20% by mass of the thermoplastic resin fiber. The basis weight of the non-skin side layer 2b is preferably 20 to 40 gsm, and more preferably 25 to 35 gsm. The ratio of the basis weight of the skin side layer 2a to the basis weight of the non-skin side layer 2b is preferably from 1: 1 to 1: 1.3, more preferably from 1: 1.15 to 1: 1.25. The thickness (T dimension in the thickness direction) of the top sheet 2 is preferably from 0.2 to 1.5 mm, more preferably from 0.2 to 1.0 mm.

On the other hand, the second sheet 5 preferably contains a plurality of components, and more preferably contains PP and PE or PP and PET. The basis weight of the second sheet 5 is preferably from 20 to 40 gsm, more preferably from 25 to 35 gsm.

肌 The skin-side layer 2a of the topsheet 2 of the embodiment according to the present disclosure contains 100% by mass of organic cotton and has a basis weight of 10 gsm. Further, the non-skin side layer 2b of the embodiment according to the present disclosure contains 60% by mass of non-organic cotton and 40% by mass of PE and PP, and has a basis weight of 20 gsm. Further, the thickness of the topsheet 2 of the embodiment according to the present disclosure is 0.3 to 0.5 mm. On the other hand, the inner sheet 5i and the outer sheet 5o of the second sheet 5 of the embodiment according to the present disclosure each include 100% by mass of PE and PP, and each have a basis weight of 20 gsm. Further, the thickness of each of the inner sheet 5i and the outer sheet 5o of the second sheet 5 of the embodiment according to the present disclosure is 1.3 to 1.9 mm. Note that another second sheet 6 of the embodiment according to the present disclosure is configured similarly to the inner sheet 5i or the outer sheet 5o of the second sheet 5.

Before describing the second sheet 5 of the embodiment according to the present disclosure shown in FIG. 2 in detail, referring to FIGS. 4A, 4B, and 4C, the second sheet of the embodiment according to the present disclosure will be described. The basic structure of No. 5 will be described. FIG. 4A shows the second sheet 5 of the embodiment according to the present disclosure in an unfolded state. As shown in FIG. 4A, the second sheet 5 according to the embodiment of the present disclosure includes a first portion 51 at the center in the width direction W and a pair extending in the length direction L while being separated from each other in the width direction W. And a pair of

second portions

52, 52 respectively connected to the first portion 51 via the folded

portions

5f, 5f. In FIG. 4A, reference numeral 512 denotes a surface of the first portion 51 facing the top sheet 2 when incorporated into the

absorbent article

1, and 514 denotes an absorption surface when incorporated into the absorbent article 1. The faces of the first part 51 towards the body 4 are respectively shown.

一対 The pair of

second portions

52, 52 of the embodiment according to the present disclosure are folded over the first portion 51 and overlap the first portion 51 along the corresponding folded

portions

5f, 5f, respectively. In this case, in the example shown in FIG. 4B, the

second portions

52, 52 are folded toward the top sheet 2. In other words, the

second portions

52, 52 are overlaid on the surface 512 of the first portion 51 facing the topsheet 2. In the example shown in FIG. 4C, the

second portions

52, 52 are folded toward the absorber 4. In other words, the

second portions

52, 52 are overlaid on the surface 514 of the first portion 51 facing the absorber 4. In any case, the

second portions

52, 52 of the embodiments according to the present disclosure are folded on the same side with respect to the first portion 51.

As a result, a space 5s at least partially surrounded by the second sheet 5 is formed. In this case, since the pair of

second portions

52, 52 are bent to the same side with respect to the first portion 51, the space 5s is formed more securely and more reliably. In this regard, as in the comparative example shown in FIG. 4D, one second portion 52 'is overlapped on the surface 512' facing the top sheet, and the other second portion 52 'is provided on the absorber. When overlapped on the facing surface 514 ', that is, when the pair of second portions 52', 52 'are folded on opposite sides with respect to the first portion 51', the space 5s 'surrounded by the second sheet 5' increases. It is difficult to do.

Particularly, in the second sheet 5 of the embodiment according to the present disclosure, the first portion 51 and the

second portions

52, 52 tend to separate from each other due to the rigidity of the folded

portions

5f, 5f. Thereby, a space 5s is formed. As a result, the liquid is more reliably held in the space 5s. As described above, the space 5s of the second sheet 5 of the embodiment according to the present disclosure has a different property from the space formed between the plurality of stacked sheets. In this regard, when the rigidity of the second sheet 5 or the folded

portions

5f, 5f is high, the

second portions

52, 52 are formed in the first portion 51 as compared with when the rigidity of the second sheet 5 or the folded

portions

5f, 5f is low. It is difficult to make contact and a larger space 5s is formed. In another embodiment (not shown), the second sheet 5 is folded along three or more fold portions that extend in the length direction L while being separated in the width direction W, and are stacked.

Referring again to FIG. 2, the second sheet 5 of the embodiment according to the present disclosure includes the inner sheet 5i and the outer sheet 5o stacked on each other as described above. In the embodiment according to the present disclosure, first, an inner sheet 5i and an outer sheet 5o that are overlapped with each other and joined to each other by, for example, an adhesive are prepared. Next, the pair of

second portions

52, 52 are bent toward the top sheet 2 side with respect to the first portion 51, and are stacked on the first portion 51. Further, in the embodiment according to the present disclosure, the second portions 52 are partially overlapped with each other. In another embodiment (not shown), the

second portions

52, 52 do not overlap each other.

In the embodiment according to the present disclosure, another absorber 5a is provided in the space 5ss of the first portion 51. Another absorber 5a of an embodiment according to the present disclosure includes a superabsorbent polymer without pulp. Furthermore, in the embodiment according to the present disclosure, an adhesive layer is provided between the inner sheet 5i and another absorber 5a. In another embodiment (not shown), the second sheet 5 does not include another absorber.

Now, in the embodiment according to the present disclosure, a liquid such as urine is first absorbed by the top sheet 2, and then, through the non-skin side layer 2 b of the top sheet 2, another second sheet 6, a second sheet 5, and the absorber 4 And is absorbed or retained. In this case, since the non-skin side layer 2b containing thermoplastic resin fibers is provided on the non-skin side of the skin side layer 2a of the top sheet 2, the liquid absorbed by the skin side layer 2a can be satisfactorily dispersed. It is drawn into 2b. As a result, the dryness of the skin side layer 2a is enhanced.

Further, in the embodiment according to the present disclosure, since the

embossed portions

10, 10, 11, 11 extending from the top sheet 2 to the second sheet 5 or the absorber 4 are provided, the liquid is supplied from the top sheet 2 to the second sheet 5 or the absorber 4. Good sent to. Further, in the embodiment according to the present disclosure, as described above, the non-skin side layer 2b of the top sheet 2, another second sheet 6, and the second sheet 5 include PE and PP. In other words, the non-skin side layer 2b, another second sheet 6, and the second sheet 5 include thermoplastic resin fibers having different melting points. As a result, as a result of the embossed

portions

10, 10, 11, 11 being formed by heat fusion, a portion where heat fusion occurs and a portion where heat fusion does not occur are formed. The liquid tends to flow in a portion where heat fusion has not occurred. Therefore, the liquid is more appropriately sent from the top sheet 2 to the second sheet 5 or the absorber 4.

In addition, in the embodiment according to the present disclosure, since the second sheet 5 is provided with another absorber 5a, the liquid is reliably held.

By the way, when pressure is applied to the absorber 4 due to, for example, movement of the wearer, the liquid absorbed by the absorber 4 may seep out from the absorber 4. In this regard, in the embodiment according to the present disclosure, the second sheet 5 between the top sheet 2 and the absorber 4 has a space 5s that can hold the liquid. Therefore, the liquid that has permeated from the absorber 4 can flow into the space 5s and be retained. As a result, the liquid is more reliably restricted from reaching the topsheet 2 from the absorber 4 while maintaining an excellent touch, and thus the occurrence of rewetting is more reliably restricted.

second portions

52, 52 tend to separate from each other due to the rigidity of the folded

portions

5f, 5f. Thereby, the volume of the space 5s is maintained large. As a result, the liquid is more reliably held in the space 5s. As described above, the space 5s of the second sheet 5 of the embodiment according to the present disclosure has a different property from the space formed between the plurality of stacked sheets.

Further, in the embodiment according to the present disclosure, the liquid can be held in the space 5ss between the inner sheet 5i and the outer sheet 5o of the second sheet 5. Therefore, the rewetting is more reliably limited.

Further, in the embodiment according to the present disclosure, since the second portions 52 of the second sheet 5 overlap with each other, the liquid once held in the spaces 5s and 5ss flows out of the spaces 5s and 5ss. Limited. Therefore, the occurrence of rewetting is more reliably limited.

(4) Naturally, the liquid that has reached the second sheet 5 from the top sheet 2 can also be held in the spaces 5s and 5ss of the second sheet 5. Therefore, the absorption capacity of the absorbent article 1 is increased.

FIG. 5 shows a schematic cross-sectional view of another embodiment according to the present disclosure. The embodiment shown in FIG. 5 differs from the embodiment shown in FIG. 2 in the absorber 4 and the second sheet 5.

吸収 The absorber 4 of the embodiment shown in FIG. 5 includes the tissue 4a on the skin side, the absorbent core 4b, and the tissue 4c on the non-skin side that are stacked on each other in the thickness direction T. The

tissues

4a and 4c of the embodiment shown in FIG. 5 have the same configuration as the absorber 4 of the embodiment shown in FIG. On the other hand, the absorbent core 4b of the embodiment shown in FIG. 5 includes pulp and a superabsorbent polymer. In another embodiment (not shown), the absorbent core 4b comprises a superabsorbent polymer without pulp. In yet another embodiment (not shown), the absorbent core 4b comprises pulp without the superabsorbent polymer. In the embodiment shown in FIG. 5, an adhesive layer is provided between the tissue 4a on the skin side and the absorbent core 4b, and between the absorbent core 4b and the tissue 4c on the non-skin side.

では In the second sheet 5 of the embodiment shown in FIG. 5, the pair of

second parts

52, 52 are bent toward the absorber 4 with respect to the first part 51, and are stacked on the first part 51. Further, in the embodiment shown in FIG. 5, the second portions 52 do not overlap each other. As a result, a communication path 5c communicating with the space 5s surrounded by the second sheet 5 is formed. Therefore, the liquid is easily guided into the space 5s via the communication path 5c. Thereby, the rewetting is more reliably limited.

Particularly in the embodiment shown in FIG. 5, the communication path 5c is directed to the absorber 4. Therefore, the liquid that has oozed out of the absorber 4 is more easily guided into the space 5s through the communication path 5c.

Furthermore, in the embodiment shown in FIG. 5, the first portion 51 is located between the space 5s and the top sheet 2. The first portion 51 differs from the

second portions

52, 52, and extends continuously in the width direction W and the length direction L. Therefore, the direction of the liquid held in the space 5s toward the top sheet 2 is restricted by the first portion 51. Moreover, in the embodiment shown in FIG. 5, the first portion 51 is provided with another absorber 5a. Therefore, the flow of the liquid held in the space 5s toward the top sheet 2 is further restricted by another absorber 5a.

Next, another embodiment according to the present disclosure will be described. Patent Document 1 described at the beginning discloses a liquid-permeable topsheet containing a water-retaining fiber such as cotton, a liquid-impermeable backsheet, and an absorbent disposed between the topsheet and the backsheet. A second sheet, which is disposed between the body and the top sheet and the absorber and contains thermoplastic resin fibers, wherein a heat-sealed portion for joining the top sheet and the back sheet to each other by heat-sealing has a peripheral edge. The absorbent article which is provided continuously along is disclosed.

However, since water-retaining fibers such as cotton have low bonding properties due to heat fusion, when a heat-sealed portion is formed by directly heat-sealing a top sheet and a back sheet containing cotton, a heat-sealed portion is formed. May be reduced. In this regard, if the second sheet containing the thermoplastic resin fiber is arranged between the top sheet and the back sheet and is heat-sealed together with the top sheet and the back sheet, it is considered that a heat-sealed portion having high bonding properties can be obtained. . However, when the thermoplastic resin fibers are thermally fused, the rigidity of the thermally fused portion may be increased. For this reason, the wearer who has touched the heat-sealed portion may feel uncomfortable. Also, if the rigidity of the heat-sealed portion is uniform along the length of the heat-sealed portion, it becomes difficult for the absorbent article to bend. Preferably, the absorbent article can be easily bent to keep it on the wearer's skin.

According to yet another embodiment of the present disclosure, the following is provided.
[Configuration a1]
A liquid-permeable top sheet containing water-retaining fibers,
A liquid-impermeable backsheet,
An absorber disposed between the top sheet and the back sheet;
A second sheet disposed between the top sheet and the absorber and including a thermoplastic resin fiber,
With
A heat-sealed portion for joining at least the top sheet and the back sheet to each other by heat-sealing is provided continuously along the periphery.
An absorbent article,
The absorbent article is divided into a first area located inside the width direction of the absorbent article, and a second area located outside the width direction than the first area,
The rigidity of the heat-sealed portion located in the second region is lower than the rigidity of the heat-sealed portion located in the first region.
Absorbent articles.
According to the configuration a1, the second sheet including the thermoplastic resin fiber is heat-sealed, so that the excellent touch is maintained and the bonding property at the heat-sealed portion is further improved. In addition, the rigidity of the heat-sealed portion located in the second region of the absorbent article is low, thereby limiting the discomfort that the heat-sealed portion may give to the wearer. At the same time, since the stiffness of the heat-sealed portion located in the first region and the stiffness of the heat-sealed portion located in the second region are different from each other, the first region and the second region are separated from each other. The demarcation line becomes a bending starting point, and the second region can be easily moved relative to the first region. Thus, the absorbent article continues to fit more reliably into the skin of the wearer.

[Configuration a2]
The heat-sealed portion located in the first region joins the top sheet and the back sheet together with the second sheet,
The heat-sealed portion located in the second region joins the top sheet and the back sheet together without including the second sheet,
The absorbent article according to configuration a1.
According to the configuration a2, the heat-fused portion having low rigidity and the heat-fused portion having high rigidity are realized with a simple structure.

[Configuration a3]
The absorbent article according to configuration a1 or a2, wherein a dividing line that separates the first area and the second area from each other is a straight line parallel to a length direction of the absorbent article.
According to the configuration a3, the second region is bent in parallel with the length direction of the absorbent article, so that the absorbent article keeps fitting to the skin of the wearer more reliably.

[Configuration a4]
The absorption according to any one of the configurations a1 to a3, wherein a dividing line that separates the first region and the second region from each other extends along an outer end in the width direction of the second sheet. Products.
According to the configuration a4, the rigidity of the heat-sealed portion located in the first region and the rigidity of the heat-sealed portion located in the second region are adjusted with a simple configuration.

[Configuration a5]
The above-mentioned top sheet comprises a skin side layer and a non-skin side layer laminated on each other, wherein the water-retaining fiber content of the skin-side layer is higher than the water-retaining fiber content of the non-skin side layer, from a configuration a1 to a4. The absorbent article according to any one of the above.
According to the configuration a5, while the excellent touch is maintained by the skin side layer, the liquid is directed to the absorber by the non-skin side layer, and further, excellent bonding properties are obtained.

[Configuration a6]
The absorbent article according to Configuration a5, wherein the skin-side layer has a water retention fiber content of 100%.
According to the configuration a6, more excellent touch is provided.

[Configuration a7]
The absorbent article according to any one of the constitutions a1 to a6, wherein the water retention fiber content of the top sheet is 40% or more.
According to the configuration a7, a more excellent touch is provided.

[Configuration a8]
The absorbent article according to any one of the constitutions a1 to a7, wherein the absorber contains 10% by mass or more of a superabsorbent polymer.
According to the configuration a8, an absorbent article suitable for an incontinence pad, particularly, a light incontinence pad is provided.

According to still another embodiment of the present disclosure, it is possible to further enhance the bonding property in the heat-sealed portion while maintaining excellent touch, and to limit the discomfort that the heat-sealed portion may give to the wearer, In addition, the absorbent article can continue to be more reliably fitted to the wearer's skin.

FIG. 6 is a plan view of the absorbent article 1 of still another embodiment according to the present disclosure, and FIGS. 7 and 8 are schematic cross-sectional views of the absorbent article 1 of still another embodiment according to the present disclosure. I have.

から Referring to FIGS. 6 to 8, the absorbent article 1 of still another embodiment according to the present disclosure differs from the embodiment of FIG. 2 in the following points. That is, the absorbent article 1 of still another embodiment according to the present disclosure further includes a first tissue 21 disposed between the absorber 4 and the second sheet 5 and a first tissue 21 disposed between the absorber 4 and the back sheet 3. And a second tissue 22 disposed. The top sheet 2, the back sheet 3, the absorber 4, the second sheet 5, and the first and

second tissues

21 and 22 are stacked on each other in the thickness direction T. In still another embodiment according to the present disclosure, the absorber 4 and the first and

second tissues

21 and 22 are smaller than the top sheet 2 and the back sheet 3 in the length direction L and the width direction W. Furthermore, the second sheet 5 of still another embodiment according to the present disclosure is substantially the same size as the top sheet 2 and the back sheet 3 in the length direction L, and is smaller than the top sheet 2 and the back sheet 3 in the width direction W. Bigger than body 4. In one example, the second sheet 5 includes a portion folded along a pair of folded portions as in the above-described embodiment. In another example, the second sheet 5 is not folded along the pair of folded portions.

では In yet another embodiment according to the present disclosure, another second sheet 6 and

side sheets

7, 7 are not provided. In still another embodiment according to the present disclosure, an adhesive layer is provided between the second sheet 5 and the first tissue 21 and between the second tissue 22 and the back sheet 3.

吸収 The absorbent article 1 of still another embodiment according to the present disclosure further includes a heat-sealed portion 31 for joining at least the top sheet 2 and the back sheet 3 to each other by heat-sealing. The heat-sealed portion 31 is provided continuously along the periphery of the absorbent article 1 outside the absorber 4 in the length direction L and the width direction W. As a result, the absorber 4 is held between the top sheet 2 and the back sheet 3.

吸収 The absorbent article 1 of still another embodiment according to the present disclosure further includes a plurality of embossed portions 32, as shown in FIG. The embossed portion 32 of still another embodiment according to the present disclosure includes an embossed portion 32a provided along the two straight lines extending in the length direction L and separated from each other in the width direction W, and a plurality of, for example, flowers. Embossed portion 32b. The embossed portions 32 of still another embodiment according to the present disclosure are each recessed in the thickness direction T from the top sheet 2 to the second sheet 5 or the absorber 4. The embossed portion 32 is formed by, for example, heat fusion. Note that the embossed portion 32 is not illustrated in FIGS. 7 and 8 for clarity.

As shown in FIG. 6, the absorbent article 1 of still another embodiment according to the present disclosure has a single narrow portion 1n having a relatively small width (dimension W in the width direction) and a pair of a relatively narrow width portion 1n. Widening

portions

1w, 1w are provided. In still another embodiment according to the present disclosure, the narrow portion 1n is located inside or at the center in the length direction L, and the

wide portions

1w, 1w are located outside the narrow portion 1n in the length direction L, respectively. FIG. 7 shows a sectional view of the narrow portion 1n, and FIG. 8 shows a sectional view of the wide portion 1w. In another embodiment (not shown), the absorbent article 1 includes a single narrow portion 1n and a single wide portion 1w. In this alternative embodiment, the narrow portion 1n is located on one side in the length direction L, and the widened portion 1w is located on the other side in the length direction L.

Further, in the absorbent article 1 of still another embodiment according to the present disclosure, the first region located inside or in the center in the width direction W is formed by the pair of partition lines LP, LP extending separately from each other in the width direction W. 1i, and second regions 1o, 1o located outside the first region 1i in the width direction W. In this case, the first region 1i is a region from one partition line LP to the other partition line LP. The second region 1o is a region from the division line LP to the outer end 1ew in the width direction W of the absorbent article 1. Note that, in still another embodiment according to the present disclosure, the widthwise outer end 1ew of the absorbent article 1 is constituted by the widthwise W outer ends of the top sheet 2 and the back sheet 3.

The lane markings LP, LP each extend across the heat-sealed portion 31. As a result, a part 31o of the heat fusion part 31 is located in the second area 1o, and another part 31i of the heat fusion part 31 is located in the first area 1i. Alternatively, it can be considered that the heat-sealed portion 31 is located in the first region 1i in the narrow portion 1n, and the heat-sealed portion 31 is located in the second region 1o in the

wide portions

1w and 1w. .

区画 Partition lines LP, LP of still another embodiment according to the present disclosure are straight lines parallel to the length direction L, respectively. In another embodiment (not shown), the division line is a straight line that is not parallel to the length direction L. In yet another embodiment (not shown), the demarcation line is a curve.

Furthermore, the partition lines LP, LP of still another embodiment according to the present disclosure each extend along the widthwise outer end 5ew of the second sheet 5. This means that the second sheet 5 exists in the first area 1i and does not exist in the second area 1o. As a result, the heat-sealed portion 31i located in the first region 1i joins the top sheet 2 and the back sheet 3 together with the second sheet 5, and the heat-sealed portion 31o located in the second region 1o is The top sheet 2 and the back sheet 3 are joined to each other without including the second sheet 5. For this reason, the rigidity of the heat-sealed portion 31o located in the second region 1o is lower than the rigidity of the heat-sealed portion 31i located in the first region 1i.

では In another embodiment (not shown), the division lines LP, LP extend inward in the width direction W from the outer ends 5ew in the width direction of the second sheet 5, and therefore the second sheet 5 also exists in the second region 1o. However, also in this case, the heat-sealed portion 31o located in the second region 1o joins the top sheet 2 and the back sheet 3 to each other without including the second sheet 5.

吸収 Yet another embodiment of the absorber 4 according to the present disclosure comprises pulp and superabsorbent polymer (SAP). In another embodiment (not shown), the absorber 4 comprises pulp without the superabsorbent polymer. In yet another embodiment (not shown), absorber 4 comprises a superabsorbent polymer without pulp.

第 The first and

second tissues

21 and 22 of still another embodiment according to the present disclosure are each formed from a sheet-like nonwoven fabric. Further, the first and

second tissues

21 and 22 of still another embodiment according to the present disclosure each include a thermoplastic resin fiber without including a water retention fiber. In another embodiment (not shown), the first and

second tissues

21 and 22 each include a water-retaining fiber and a thermoplastic resin fiber. Examples of the water-retaining fiber and the thermoplastic resin fiber are as described above.

水性 The water retention fibers of the skin side layer 2a preferably include organic cotton. The skin-side layer 2a preferably contains 100% by mass of water-retaining fibers. The water-retaining fiber of the non-skin side layer 2b preferably contains non-organic cotton. The thermoplastic resin fiber of the non-skin side layer 2b preferably contains a plurality of components, and more preferably contains PP and PE or PP and PET. The non-skin side layer 2b preferably contains 20 to 80% by mass of the water-retaining fiber and 80 to 20% by mass of the thermoplastic resin fiber. The basis weight of the non-skin side layer 2b is preferably 20 to 40 gsm, and more preferably 25 to 35 gsm. The ratio of the basis weight of the skin side layer 2a to the basis weight of the non-skin side layer 2b is preferably from 1: 1 to 1: 1.3, more preferably from 1: 1.15 to 1: 1.25. The thickness (T dimension in the thickness direction) of the top sheet 2 is preferably from 0.2 to 1.5 mm, more preferably from 0.2 to 1.0 mm. Furthermore, the content ratio of the water-retaining fiber of the top sheet 2 (= the total of the mass of the water-retaining fiber contained in the skin-side layer 2a and the mass of the water-retaining fiber contained in the non-skin-side layer 2b with respect to the total mass of the top sheet 2) Is preferably 40% or more. In this case, an excellent touch can be obtained.

Furthermore, the absorber 4 preferably contains 10% by mass or more of the high molecular polymer, more preferably 13% by mass or more, and even more preferably 17% by mass or more. In this way, the liquid is securely held by the absorber 4, so that the rewetting of the liquid once absorbed to the top sheet 2 is limited.

Now, in still another embodiment according to the present disclosure, a liquid such as urine is first absorbed into the topsheet 2 and then through the non-skin side layer 2b of the topsheet 2, the first tissue 21, the second sheet 5, The body 4 and the second tissue 22 are reached and absorbed or retained.

Further, in still another embodiment according to the present disclosure, since the embossed portion 32 extending from the top sheet 2 to the second sheet 5 or the absorber 4 is provided, the liquid can be favorably transferred from the top sheet 2 to the second sheet 5 or the absorber 4. Sent. As in the case of the embossed

portions

10, 10, 11, 11 of FIG. 2, the embossed portion 32 allows the liquid to be sent from the top sheet 2 to the second sheet 5 or the absorber 4 even better.

In yet another embodiment according to the present disclosure, in the first region 1i, the heat-sealed portion 31i joins the top sheet 2 and the back sheet 3 together with the second sheet 5 including thermoplastic resin fibers. As a result, the bonding property between the top sheet 2 and the back sheet 3 is further enhanced. In still another embodiment according to the present disclosure, since the top sheet 2 is provided with the non-skin side layer 2b containing thermoplastic resin fibers, the second region 1o also provides a space between the top sheet 2 and the back sheet 3. Is further improved.

In still another embodiment according to the present disclosure, the rigidity of the heat-sealed portion 31o located in the second region 1o is lower than the rigidity of the heat-sealed portion 31i located in the first region 1i. In other words, the heat-sealed portion 31o located in the second region 1o is relatively soft. Therefore, the discomfort given to the wearer by the heat-sealed portion 31o is limited.

At the same time, in still another embodiment according to the present disclosure, the rigidity of the heat-sealed portion 31i located in the first region 1i is different from the rigidity of the heat-sealed portion 31o located in the second region 1o. For this reason, if the part of the dividing line LP that separates the heat fusion part 31i and the heat fusion part 31o from each other is represented by LPx as shown in FIG. 9, the division line part LPx becomes the bending starting point. As a result, as shown in FIG. 10, the second area 1o can be easily moved relative to the first area 1i. Therefore, it becomes possible for the absorbent article 1 to more reliably fit the wearer's skin.

In addition, in still another embodiment according to the present disclosure, since the division line portion LPx is a straight line parallel to the length direction L, the second region 1o is bent parallel to the length direction L. Therefore, the absorbent article 1 can continue to surely fit the wearer's skin.

In particular, in still another embodiment according to the present disclosure, two sectioning line portions LPx serving as bending starting points are provided in the one second region 1o or one heat fusion portion 31o so as to be separated in the length direction L. . Therefore, relative movement of the second region 1o with respect to the first region 1i can be obtained more easily and more reliably.

In yet another embodiment according to the present disclosure, the heat-sealed portion 31i located in the first region 1i includes the second sheet 5, and the heat-sealed portion 31o located in the second region 1o includes the second sheet 5. By not including it, the rigidity of the heat-sealed portion 31o and the rigidity of the heat-sealed portion 31i are different from each other. In this way, a difference in rigidity between the heat-sealed portion 31o and the heat-sealed portion 31i can be realized with a simple configuration, that is, without requiring an additional configuration. Further, in still another embodiment according to the present disclosure, since the dividing line LP or the dividing line portion LPx extends along the outer edge 5ew in the width direction of the second sheet 5, the rigidity of the heat-sealed portion 31o and the heat-sealed portion are reduced. The rigidity of 31o can be adjusted with a simple configuration.

In another embodiment (not shown), the stiffness and heat of the heat-sealed portion 31o are different by different heat-sealing process conditions in the heat-sealed portion 31i and heat-sealing process conditions in the heat-sealed portion 31o. The rigidity of the fused portion 31i is different from each other. The heat fusion processing conditions include the time, temperature, area, and the like of the heat fusion processing. In the embodiment shown in FIGS. 6 to 8, the conditions of the heat fusion processing in the heat fusion part 31i and the conditions of the heat fusion processing in the heat fusion part 31o are the same.

This application claims the benefit of Japanese Patent Application Nos. 2018-185451 and 2018-185589, the entire disclosure of which is incorporated herein.

DESCRIPTION OF SYMBOLS 1 Absorbent article 2 Top sheet 3 Back sheet 4 Absorber 5 Second sheet 51 First part 52 Second part 5f Folded part

Claims

A liquid-permeable top sheet containing water-retaining fibers,
A liquid-impermeable backsheet,
An absorbent body disposed between the top sheet and the back sheet and including pulp,
A second sheet disposed between the top sheet and the absorber and including a thermoplastic resin fiber,
An absorbent article comprising:
The second sheet is connected to the first portion via a first portion and a pair of folded portions respectively extending in a length direction of the absorbent article while being separated from each other in a width direction of the absorbent article. And a pair of second parts,
The pair of second portions are folded on the absorber side or the top sheet side with respect to the first portion and are overlapped with the first portion, respectively, along the corresponding folded portions. ,
Absorbent articles.
The said top sheet is provided with the skin side layer and the non-skin side layer laminated | stacked on each other, The water retention fiber content rate of the said skin side layer is higher than the water retention fiber content rate of the said non-skin side layer, The claim 1. Absorbent articles.
The absorbent article according to claim 2, wherein the water-retaining fiber content of the skin-side layer is 100%.
The absorbent article according to any one of claims 1 to 3, wherein the second sheet includes an inner sheet and an outer sheet that are stacked on each other.
The absorbent article according to claim 4, further comprising a superabsorbent polymer disposed between the inner sheet and the outer sheet.
The absorbent article according to any one of claims 1 to 5, wherein the pair of second portions do not overlap each other.
吸収 The absorbent article according to any one of claims 1 to 6, wherein the pair of second portions are folded toward the absorber with respect to the first portion.
A heat-sealed portion for joining at least the top sheet and the back sheet to each other by heat-sealing, further comprising a heat-sealed portion continuously provided along a peripheral edge of the absorbent article,
The absorbent article is divided into a first area located inside the width direction of the absorbent article, and a second area located outside the width direction than the first area,
The rigidity of the heat-sealed portion located in the second region is lower than the rigidity of the heat-sealed portion located in the first region.
The absorbent article according to any one of claims 1 to 7.
The heat-sealed portion located in the first region joins the top sheet and the back sheet together with the second sheet,
The heat-sealed portion located in the second region joins the top sheet and the back sheet together without including the second sheet,
An absorbent article according to claim 8.
10. The absorbent article according to claim 8, wherein a dividing line that separates the first area and the second area from each other is a straight line parallel to a length direction of the absorbent article.
11. The method according to claim 8, wherein a dividing line that separates the first region and the second region from each other extends along an outer end of the second sheet in the width direction. 12. Absorbent articles.
The absorbent article according to any one of claims 8 to 11, wherein the water retention fiber content of the top sheet is 40% or more.
吸収 The absorbent article according to any one of claims 8 to 12, wherein the absorbent contains at least 10% by mass of a superabsorbent polymer.