JP2022175672A - absorbent article - Google Patents

Abstract

To provide an absorbent article including a relatively thin-type absorber even after a plurality of times of humor absorption, retaining high absorption rate and preventing humor leak and liquid return.SOLUTION: An absorbent article 50 comprises a top sheet 10, an absorber 20 and a back sheet 30. The absorber 20 includes a skin-side absorbent sheet 21 having a SAP 12 in the inside, and a non-skin-side fluff absorber 22 containing absorbent fibers and the SAP 12, where a perforated film 23 is disposed between the absorbent sheet 21 and the fluff absorber 22. The absorbent sheet 21 includes a skin-side first hydrophilic nonwoven fabric 25 and a pulp-containing nonwoven fabric 26 temporarily storing non-skin-side humor, where a plurality of first closed spaces 29 for enclosing the SAP 12 are formed between the first hydrophilic nonwoven fabric 25 and the pulp-containing nonwoven fabric 26, and the SAP 12 is enclosed in the respective first closed spaces 29 of the absorbent sheet 21, with it nonbonded thereto.SELECTED DRAWING: Figure 2

Description

The present invention relates to absorbent articles.

In general, absorbent articles such as light incontinence pads, pants-type paper diapers, and tape-fastened paper diapers are composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the two sheets. , consists of As a result, body fluids such as urine pass through the top sheet and are absorbed by the absorbent member, and are prevented from leaking to the outside by the back sheet. Such absorbent articles have been devised in various ways in order to improve absorbency of bodily fluids, improve wearer's wearing comfort, prevent leakage, and the like.

For example, an absorbent article using an apertured film having a large number of apertures penetrating from one surface to the other surface is known. This absorbent article utilizes the structure of the perforated film in which the opening area of the pores on one surface is larger than the opening area of the pores on the other surface, and the surface with the larger opening area is arranged on the skin side. This is intended to improve wet back and absorption speed. Various proposals have conventionally been made to utilize perforated films in absorbent articles.

In Patent Document 1, a liquid-permeable top sheet, a liquid-retaining absorbent body and a liquid-impermeable back sheet are provided, and the top sheet is a non-skin-contacting surface layer and a non-skin layer laminated on the non-skin side of this layer. a skin-contacting surface layer, the skin-contacting surface layer being a perforated film made of a thermoplastic resin, and the non-skin-contacting surface layer comprising bulky cellulose fibers (claim Item 1). According to Patent Document 1, an absorbent article is provided in which bodily fluids are guided to an absorbent body without flowing on the surface material or remaining on the surface material, and having high absorption performance and less stickiness. (Paragraph 0014).

Patent Document 2 has a surface layer, an absorbent layer, and a bottom layer provided in order from the skin side to the non-skin side, and the absorbent layer is provided with a perforated film layer (perforated film) from the skin side to the non-skin side. , a core layer and an undercoat layer, wherein the perforated film layer is positioned between the surface layer and the core layer, and the undercoat layer is positioned between the core layer and the bottom layer. (Claim 1). According to Patent Document 2, it is described that an absorbent article that is excellent in preventing bleeding and more comfortable to the user is provided (paragraph 0018).

In Patent Document 3, an absorbent layer containing at least one of super absorbent polymer (hereinafter also referred to as "SAP") and fluff pulp as an absorbent component, and arranged in contact with the absorbent layer, and an absorber covering layer made of a perforated film made of water-resistant and highly air-permeable synthetic resin. An absorbent body is disclosed which has a portion and is arranged so that the top of the protrusion is in contact with the absorbent layer (claim 1). According to Patent Document 3, the absorbent coating layer causes the absorbent layer to reabsorb unabsorbed body fluid that has leaked out. It is described that the absorbent article has an excellent sense of use because it has good breathability to the body (Paragraph 0058).

On the other hand, Patent Document 4 includes a first sheet, a second sheet opposed to the first sheet, and an SAP disposed between the first sheet and the second sheet. The surface facing the second sheet is the adhesive-coated surface, the surface facing the first sheet is the adhesive-coated surface of the second sheet, and the SAP is applied to the adhesive-coated surface of the first sheet and/or the second sheet. An absorbent sheet that is intermittently adhered in stripes in the width direction and sealed on both sides in the width direction by adhesion between the adhesive-coated surfaces of the first and second sheets is disclosed as an absorber. The absorbent sheet described in Patent Document 4 is different from conventional fluff absorbent bodies that contain absorbent fibers such as fluff pulp and SAP, and is composed of two hydrophilic nonwoven fabrics (here, the first and second sheets ) and a SAP affixed therebetween. According to Patent Document 4, it is described that the absorbent performance of the absorbent can be ensured and the width of the absorbent can be reduced (paragraph 0012).

Further, Patent Document 5 includes a skin-side absorbent body positioned on the wearer's skin side, and a fluff absorbent body laminated on the skin-side absorbent body and positioned on the non-skin side of the wearer, An absorbent article is disclosed in which the skin-side absorbent body is an absorbent sheet and the fluff absorbent body is a fluff absorbent body (claims 1 and 4). According to Patent Document 5, it is described that the amount of bodily fluid absorption is increased while preventing a decrease in the strength of the absorbent body and an increase in the thickness of the absorbent body.

JP-A-8-66425 Utility Model Registration No. 3215515 JP-A-2002-355271 JP 2006-158676 A JP 2018-164633 A

In the absorbent articles described in Patent Documents 1 to 3, the perforated film is arranged closer to the skin than the absorbent body. Although it prevents fluid return and leakage and increases the absorption speed, it is not effective in improving the diffusion of body fluids. There is a problem that it is easy to cause trouble.

In the absorbent article described in Patent Document 4, although an absorbent sheet is used as an absorbent body, the absorbent sheet has a gel-blocking effect in which the superabsorbent polymer absorbs body fluids discharged first and swells and integrates. Since it is likely to occur, there is a problem that the passage of the body fluid is blocked when the body fluid is discharged for the second time and thereafter, and the absorption speed of the body fluid after the second time is remarkably lowered.

Patent Document 5 describes that the body fluid in the absorbent sheet (upper absorbent element) 40 is more likely to diffuse to the surroundings, and the supply of body fluid to the fluff absorbent body (lower absorbent element) 50 becomes wider ( paragraph 0008). However, although the fluff absorber 50 is formed to be larger than the absorbent sheet 40 as shown in FIG. It is difficult to say that the peripheral area of the fluff absorber 50 sufficiently contributes to the absorption of body fluids. Furthermore, it is not obvious from the description of Patent Document 5 to arrange an apertured film between the absorbent sheet 40 and the fluff absorbent body 50 .

SUMMARY OF THE INVENTION It is an object of the present invention to provide an absorbent article having a relatively thin absorbent body that maintains a high absorption rate even after absorbing body fluids multiple times and prevents leakage and return of body fluids.

The inventors of the present invention have made intensive studies to solve the above problems, and found that in an absorbent article using both an absorbent sheet and a fluff absorbent as an absorbent, a perforated film is used as a top sheet as in the past. Instead of being placed between the absorbent body, it is placed between the absorbent sheet and the fluff absorbent body, the superabsorbent polymer is enclosed in the absorbent sheet in an unbonded state, and the absorbent sheet By arranging the pulp-containing nonwoven fabric on the most non-skin side, it was found that an absorbent article meeting the purpose can be obtained, and the present invention was completed. That is, the present invention relates to the following absorbent article.

(1) An absorbent article comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body disposed therebetween,
The absorbent body is arranged on the wearer's skin side and contains an absorbent sheet having a superabsorbent polymer inside, and the absorbent body is arranged on the non-skin side of the wearer and contains absorbent fibers and the superabsorbent polymer. a fluff absorber for
a perforated film disposed between the absorbent sheet and the fluff absorber and having a plurality of perforations penetrating from one surface to the other surface;
The absorbent sheet has a first hydrophilic nonwoven fabric positioned on the skin side of the wearer and a non-skin side nonwoven fabric positioned on the non-skin side of the wearer,
The first hydrophilic nonwoven fabric and the non-skin side nonwoven fabric are joined so that a plurality of first closed spaces in which the superabsorbent polymer is enclosed are formed between them,
The non-skin-side nonwoven fabric is a pulp-containing nonwoven fabric that temporarily stores bodily fluids,
An absorbent article, wherein the superabsorbent polymer is enclosed in each first closed space of the absorbent sheet in a non-adhesive manner.
(2) the absorbent sheet has a second hydrophilic nonwoven fabric located further on the skin side of the wearer than the first hydrophilic nonwoven fabric;
The second hydrophilic nonwoven fabric and the pulp-containing nonwoven fabric are joined together so that a plurality of second closed spaces enclosing the superabsorbent polymer are formed therebetween,
The absorbent article according to (1) above, wherein the superabsorbent polymer is enclosed in each second closed space of the absorbent sheet in a non-adhesive manner.
(3) The absorbent article according to (1) or (2) above, further comprising a second sheet that diffuses bodily fluids and/or has cushioning properties between the top sheet and the absorbent body.
(4) The absorbent article according to any one of (1) to (3) above, wherein the perforated film has a perforation diameter of 2 mm or less on one surface and the other surface of the perforations.
(5) The first hydrophilic nonwoven fabric or the second hydrophilic nonwoven fabric diffuses body fluids in the plane direction and the thickness direction, respectively, and has a basis weight of 10 g/m ² or more and 40 g/m ² or less, and a thickness of is 0.05 mm or more and 0.3 mm or less.
(6) The first hydrophilic nonwoven fabric or the second hydrophilic nonwoven fabric contains one or more fibers selected from the group consisting of polyethylene fibers, polypropylene fibers, and polyester fibers, air-through nonwoven fabric or The absorbent article according to any one of (1) to (5) above, which is a spunbond nonwoven fabric.
(7) The absorbent article according to any one of (1) to (6) above, wherein the pulp-containing nonwoven fabric has a basis weight of 30 g/m ² or more and 60 g/m ² or less.

ADVANTAGE OF THE INVENTION According to the present invention, an absorbent article is provided that has a relatively thin absorbent body that maintains a high absorption rate even after absorbing bodily fluids a plurality of times and prevents bodily fluid leakage and fluid return.

1 is a plan view schematically showing the structure of an absorbent article according to this embodiment; FIG. FIG. 2 is a schematic cross-sectional view in the width direction taken along line XX shown in FIG. 1; 1 is a plan view schematically showing the configuration of an absorbent sheet according to this embodiment; FIG. 4 is a schematic cross-sectional view in the width direction along the X ₁ -X ₁ cutting line shown in FIG. 3; FIG. FIG. 3 is a cross-sectional view schematically showing the structure of an absorbent sheet precursor. (a) is an absorbent sheet of one embodiment, and (b) is an absorbent sheet of another embodiment.

In this specification, wearing the absorbent article 50 refers to a state in which the absorbent article 50 is worn on the wearer's body, regardless of whether it is before or after absorption of bodily fluids. The longitudinal direction of the absorbent article 50 is the direction indicated by Y in the drawing that extends from front to back through the crotch of the wearer when the absorbent article 50 is worn, and the width direction is the direction relative to the longitudinal direction. The thickness direction is the direction indicated by Z in the drawing, in which the constituent members are laminated. The skin-side surface (hereinafter also referred to as "skin-side surface") of the absorbent article 50 and each component thereof is the surface that contacts the wearer's skin or the surface that faces the skin, and the non-skin-side surface (hereinafter " The "non-skin side") is the surface that contacts or faces the garment of the wearer. Body fluids refer to liquids excreted from the body to the outside of the body, such as water in urine, blood, and loose stools.

<Absorbent article>
Hereinafter, an absorbent article 50 according to this embodiment will be described with reference to the drawings. 1-2 show an absorbent article 50. FIG. 3 and 4 show an absorbent sheet 21. FIG. FIG. 5 shows absorbent sheet precursors 21X (FIG. 5(a)) and 21Y (FIG. 5(b)) before forming the joints 28 . Each figure does not define the shape of the absorbent article 50 and each constituent member, the size relationship of the dimensions, and the like.

The absorbent article 50 of the present embodiment can be used as various absorbent articles for babies, adults, and elderly people, such as light incontinence pads, light incontinence liners, urine absorption pads, and sanitary napkins. , pants-type disposable diapers, tape-fastening type disposable diapers, and the like. Various paper diapers as an outer and the absorbent article 50 as an inner may be combined. Both the longitudinal dimension L ₅₀ (FIG. 1) and the widthwise dimension W ₅₀ (FIG. 1) of the absorbent article ₅₀ are not particularly limited. ₅₀ is the range of 50 mm or more and 500 mm or less. By adjusting the dimensions of the absorbent article 50 within the above range, various forms of absorbent articles can be easily obtained.

The absorbent article 50 shown in FIGS. 1 and 2 includes a liquid-permeable top sheet 10 positioned on the skin side and a liquid-impermeable back sheet 30 positioned opposite the top sheet 10 and positioned on the non-skin side. , the second sheet 60 arranged between the top sheet 10 and the absorbent body 20, the absorbent body 20 arranged between the second sheet 60 and the back sheet 30, and the skin side surface of the top sheet 10 and a pair of three-dimensional gathers 40. The absorbent body 20 comprises an absorbent sheet 21 placed on the skin side of the wearer and a fluff absorbent body 22 placed on the non-skin side of the wearer, with a perforated film 23 placed therebetween. ing. The absorbent sheet 21 is constructed by laminating a first hydrophilic nonwoven fabric 25, a first superabsorbent polymer layer 27, and a pulp-containing nonwoven fabric 26 in order from the wearer's skin side (Fig. 5(a)). By providing a joint 28 that partially joins the first hydrophilic nonwoven fabric 25 and the pulp-containing nonwoven fabric 26, the first superabsorbent polymer layer 27 encloses the superabsorbent polymer 12 in a non-bonded state. It is divided into a plurality of spaces (first closed spaces) 29 that

According to this embodiment, the absorbent sheet 21 and the fluff absorbent body 22 are used together as the absorbent body 20, and the perforated film 23 is arranged between the absorbent sheet 21 and the fluff absorbent body 22 in the thickness direction. As a result, the bodily fluid supplied from the absorbent sheet 21 to the fluff absorbent body 22 instantaneously receives the resistance of the perforated film 23 and diffuses widely in the plane direction on the skin side surface of the perforated film 23. At the moment of , the body fluid diffuses from the pores 33 of the perforated film 23 to the fluff absorber 22, so that the body fluid can be easily diffused throughout the fluff absorber 22, and excellent body fluid diffusibility is maintained even after absorbing the body fluid a plurality of times. , it is possible to obtain an absorbent article 50 having a sufficient surplus capacity in terms of bodily fluid absorption capacity. In this embodiment, instead of placing the perforated film 23 between the top sheet 10 and the absorbent body 20 to prevent liquid return as in the conventional art, the perforated film 23 is placed between the absorbent sheet 21 and the fluff absorbent body 22. By arranging the perforated film 23, the diffusibility of the body fluid is improved, and a completely different function and effect from the conventional one has been successfully obtained. In addition, according to the present embodiment, by using the absorbent sheet 21 and the fluff absorbent body 22 together, the thickness of the fluff absorbent body 22 can be made thinner than before, so that the entire body is thin and can be A less noticeable absorbent article 50 can be obtained.

The absorbent article 50 of the present embodiment has the top sheet 10, the absorbent body 20, the perforated film 23, and the back sheet 30 as basic structural units. Various known alterations such as arrangement of the second sheet 60 and the transfer sheet (not shown) between the absorber 20 can be added. Hereinafter, the constituent members of the absorbent article 50 of this embodiment will be described in more detail in the order of the top sheet 10, the second sheet 60, the absorbent body 20, the back sheet 30, and the three-dimensional gathers 40.

<Top sheet>
The top sheet 10 is a liquid-permeable sheet-like base material that allows bodily fluids to pass quickly toward the absorbent body 20 and diffuse the bodily fluids in the surface direction of the absorbent body 20 . The topsheet 10 is preferably made of a base material that is soft to the touch and non-irritating to the wearer's skin so that it may be in direct contact with the wearer's skin. Examples of the substrate include a hydrophilic sheet, a composite nonwoven fabric which is a laminate of hydrophilic sheets of the same type or different types, a perforated film such as a perforated polyethylene film, a polyethylene foam, a foamed film such as a urethane foam, and the like. . Hydrophilic sheets include, for example, synthetic fibers made of synthetic resins such as polypropylene and polyethylene, regenerated fibers such as rayon, and natural fibers such as cotton. A spunbond nonwoven fabric etc. are mentioned. Among these, each nonwoven fabric is preferable.

The surface of the top sheet 10 may be embossed or perforated from the viewpoint of improving liquid permeability. From the viewpoint of reducing irritation to the skin, the top sheet 10 may contain one or more of lotions, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, and the like. The basis weight of the top sheet 10 is, for example, in the range of 15 g/m ² or more and 40 g/m ² or less from the viewpoint of strength, workability, and liquid return amount. The shape of the top sheet 10 is not particularly limited as long as it covers part or all of the absorbent body 20 required to guide body fluids to the absorbent body 20 without leakage.

<second seat>
The second sheet 60 is arranged on the non-skin side of the top sheet 10 , more specifically between the top sheet 10 and the absorbent body 20 . By arranging the second sheet 60, the cushioning property is increased, the fitting property and the wearing feeling of the absorbent article 50 are improved, and the body fluid that has permeated the top sheet 10 can be diffused substantially uniformly over the entire absorbent body 20. can.

The base material of the second sheet 60 is, for example, a bulky nonwoven fabric that has a faster permeation rate of body fluids than the top sheet 10, quickly diffuses body fluids into the absorbent body 20, and/or has cushioning properties. The nonwoven fabric is preferably an air-through nonwoven fabric, a spunbond nonwoven fabric, or the like. The thickness of the second sheet 60 is, for example, in the range of 0.1 mm or more and 4 mm or less, and its basis weight is, for example, in the range of 20 g/m ² or more and 60 g/m ² or less, or in the range of 22 g/m ² or more and 37 g/m ² or less. is. If the thickness is less than 0.1 mm, or the basis weight is less than 20 g/m ² or greater than 60 g/m ² , body fluids will not diffuse sufficiently over the entire skin-side surface of the absorbent body 20, and the cushioning properties will decrease. The wearing feeling of the absorbent article 50 tends to deteriorate. Moreover, the shape of the second sheet 60 is not particularly limited, but in a preferred embodiment, it is a shape that can completely cover the surface of the absorber 20 .

<Absorber>
The absorber 20 has a longitudinal dimension (maximum length) L ₂₀ (FIG. 1) of, for example, 100 mm or more and 800 mm or less, 150 mm or more and 500 mm or less, or 270 mm or more and 500 mm or less. The widthwise dimension (maximum width) W ₂₀ (FIG. 1) of the absorbent body 20 is, for example, in the range of 50 mm or more and 500 mm or less, 60 mm or more and 400 mm or less, or 70 mm or more and 105 mm or less. Further, when the planar view shape of the absorbent body 20 is an hourglass shape, the longitudinal dimension is in the range of 180 mm or more and 800 mm or less, and the width dimension of the front part A and the rear part C that contact the wearer's abdomen and back, respectively. It is in the range of 60 mm or more and 400 mm or less, and the width direction dimension of the central portion B that contacts the crotch portion of the wearer is in the range of 90 mm or more and 250 mm or less. Examples of the planar shape of the absorber 20 include an hourglass shape, an I shape, a rectangle, a square with rounded corners, and an ellipse. It should be noted that the dimensions and the shape in plan view here are those in a state in which the absorbent sheet 21 and the fluff absorbent body 22 are superimposed, as will be described later.

The absorbent body 20 of this embodiment includes an absorbent sheet 21 arranged on the skin side and a fluff absorbent body 22 arranged on the non-skin side. , an apertured film 23 is arranged.

<Absorbent sheet>
The absorbent sheet 21 does not contain absorbent fibers such as fluff pulp. The absorbent sheet 21 has a first form and a second form. The absorbent sheet 21 of the first form is formed by forming a joint portion 28 at a predetermined position of the absorbent sheet precursor 21X shown in FIG. A plurality of closed spaces 29 are formed by dividing a layer 27 in the plane direction. The absorbent sheet 21 of the second embodiment is formed by forming a joint portion 28 at a predetermined position of an absorbent sheet precursor 21Y shown in FIG. 5B instead of the absorbent sheet precursor 21X. A plurality of closed spaces 29 are formed in each SAP layer 27 by dividing each of the second SAP layers 27 in the plane direction.

The absorbent sheet precursor 21X shown in FIG. 5(a) is configured by laminating a first hydrophilic nonwoven fabric 25, a first SAP layer 27, and a pulp-containing nonwoven fabric 26 in this order from the wearer's skin side. It is an absorbent sheet. The absorbent sheet precursor 21Y shown in FIG. 5B includes, in order from the wearer's skin side, the first hydrophilic nonwoven fabric 25, the first SAP layer 27, the second hydrophilic nonwoven fabric 25, the second and a pulp-containing nonwoven fabric 26 are superimposed on each other to form an absorbent sheet. The thickness of the absorbent sheet 21 is, for example, in the range of 0.5 mm or more and 5 mm or less. If the thickness of the absorbent sheet 21 is less than 0.5 mm, the absorbent body 20 as a whole has insufficient ability to absorb body fluids, and tends to be unable to absorb body fluids multiple times. When the thickness of the absorbent sheet 21 exceeds 20 mm, the thickness of the absorbent body 20 as a whole tends to be large, making it easy to stand out from others. The superabsorbent polymer 12 is enclosed in each closed space 29 of the first and second SAP layers 27 in a non-adhesive state.

According to the absorbent sheet 21, while being thin, the first SAP layer 27 (first form) or the first and second SAP layers 27 (second form) are a plurality of small compartments in the plane direction. A junction 28 which is divided into spaces 29, in which the superabsorbent polymer 12 is enclosed in the closed space 29 in a non-adhesive state, and which serves as a body fluid diffusion path between one closed space 29 and another adjacent closed space 29. is formed, the body fluid diffusibility is maintained at a high level from the start of use of the absorbent article 50 to the end of use, and the superabsorbent polymer 12 is less likely to cause gel blocking, and the closed spaces 29 It becomes possible to fully utilize the body fluid absorption capacity of the superabsorbent polymer 12 encapsulated in the absorbent article 50, and the absorbent article 50 can absorb body fluids multiple times at a high absorption rate. In addition, since the body fluid absorption capacity of the superabsorbent polymer 12 in the closed space 29 can be fully utilized, it is also possible to minimize the amount of the superabsorbent polymer 12 enclosed, and the absorbent sheet 21 can be further expanded. It is possible to reduce the thickness of the absorbent article 50 and improve the fit and feel of the absorbent article 50 . Furthermore, since the superabsorbent polymer 12 swells and hardens substantially evenly within the plurality of closed spaces 29, the absorbent sheet 21 as a whole is less likely to have large protruding portions, and the absorbent article 50 is comfortable to wear and fit. The feeling can be further improved.

(hydrophilic nonwoven fabric)
The first and second hydrophilic nonwoven fabrics 25 diffuse body fluids in, for example, the surface direction and the thickness direction of the absorbent body 20 . As the hydrophilic nonwoven fabric 25, a hydrophilic nonwoven fabric that is excellent in diffusing body fluids can be used without particular limitation. A spunbond nonwoven fabric etc. are mentioned. Among these, the spunbond nonwoven fabric is more preferable from the viewpoint of making the absorbent sheet 21 thinner and improving the diffusibility of body fluids. The basis weight of the hydrophilic nonwoven fabric 25 is, for example, in the range of 10 g/m ² or more and 40 g/m ² or less. The thickness of the hydrophilic nonwoven fabric 25 is, for example, in the range of 0.05 mm or more and 0.3 mm or less. For the first and second hydrophilic nonwoven fabrics 25, the same or different hydrophilic nonwoven fabrics can be used.

(Pulp-containing nonwoven fabric)
The pulp-containing nonwoven fabric 26 is arranged on the most non-skin side of the absorbent sheet 21 to support, for example, the first or second SAP layer 27, and when body fluids are discharged, the superabsorbent polymer 12 Before the body fluid starts to absorb, the body fluid is temporarily stored and held to prevent the occurrence of body fluid leakage, fluid return, and the like. The pulp-containing nonwoven fabric 26 retains body fluids faster than the superabsorbent polymer 12 absorbs body fluids, but when the superabsorbent polymer 12 begins to absorb body fluids, the body fluids retained in the pulp-containing nonwoven fabric 26 become high. Absorbed in absorbent polymer 12 . Furthermore, the pulp-containing nonwoven fabric 26 rectifies the flow of body fluids, and smoothly transfers part of the body fluids supplied to the absorbent sheet 21 to the perforated film 23 located on the non-skin side and the fluff absorbent body 22. Therefore, this point also contributes to prevention of body fluid leakage, fluid return, and the like.

As the pulp-containing nonwoven fabric 26, a nonwoven fabric containing pulp fibers as constituent fibers can be used without particular limitation. pulp-containing nonwoven fabric 26 including a pulp layer 31 that is converted into a nonwoven fabric that contributes to the diffusion and retention of body fluids of the absorbent sheet 21 . Integration means that the pulp layer 31 and the nonwoven fabric 32 do not separate to the extent that the function of the pulp-containing nonwoven fabric 26 is impaired until the absorbent article 50 is finished using. In a preferred embodiment, the pulp layer 31 faces the first or second SAP layer 27 and the nonwoven fabric 32 faces the apertured film 23 .

Among the pulp-containing nonwoven fabrics 26, an integrated product obtained by hydroentangling is preferable. The integrated product is obtained by spraying pulp fibers on the surface of the nonwoven fabric 32 with a water jet, entangling them, and integrating them to provide the pulp layer 31 . In this pulp-containing nonwoven fabric 26, the constituent fibers of the nonwoven fabric 32 and the pulp fibers are entangled on one surface of the nonwoven fabric 32 to integrate the pulp layer 31, and a part of the pulp fibers penetrates the nonwoven fabric 32 in the thickness direction. The pulp layer 31 and the nonwoven fabric 32 are firmly bonded to each other, being exposed on the other surface. As the pulp fiber, for example, one or more types of bleached softwood kraft pulp can be used. The nonwoven fabric 32 is not particularly limited, but is preferably a spunbond nonwoven fabric from the viewpoint of supportability for the pulp layer 31, strength, liquid retention, softness, and texture of the pulp-containing nonwoven fabric 26 as a whole. Polypropylene fibers are used as synthetic resin fibers. A spunbonded nonwoven fabric containing is more preferred, and a spunbonded nonwoven fabric made of polypropylene fibers is even more preferred.

The basis weight of the pulp-containing nonwoven fabric 26 is, for example, in the range of 60 g/m ² or less, or in the range of 30 g/m ² or more and 60 g/m ² or less, from the viewpoint of the thickness of the absorbent article 50, body fluid absorption rate, and the like. When the basis weight exceeds 60 g/m ² , the absorbent sheet 21 becomes thicker, and the pulp fibers become denser, so that the perforated film 23 located on the non-skin side and the fluff absorbent body 22 can smoothly absorb body fluids. It is not possible to deliver, and there is a tendency for body fluid leakage and the like to occur easily. In addition, the increased hardness and thickness of the pulp-containing nonwoven fabric 26 tends to make the absorbent sheet 21 harder and less comfortable to wear. On the other hand, if the basis weight is less than 30 g/m ² , the pulp-containing nonwoven fabric 26 becomes too soft, resulting in a low manufacturing yield and a tendency to tear easily after absorbing body fluids. The basis weight of the pulp layer 31 is, for example, 30 g/m ² or more and 50 g/m ² or less, and the basis weight of the nonwoven fabric 32 is, for example, 7 g/m ² or more and 30 g/m ² or less.

(SAP layer)
The first and second SAP layers 27 absorb and retain bodily fluids.
In the absorbent sheet 21 of the first embodiment, as shown in FIGS. It is divided into a plurality of first closed spaces 29 which are joined by a portion 28 and surrounded by the joining portion 28 and which are substantially rectangular in plan view and disc-shaped in cross section. An absorbent polymer 12 is encapsulated in a non-adhesive manner. The number of first closed spaces 29 is not limited to 16 (FIG. 3) in this embodiment, but may be any number. As used herein, the term “disk-like” means a disk-like shape slightly protruding on both sides in the thickness direction.

In the absorbent sheet 21 of the second embodiment, the first SAP layer 27 is configured in the same manner as the absorbent sheet 21 of the first embodiment, except that the second hydrophilic nonwoven fabric 25 is used instead of the pulp-containing nonwoven fabric 26. The second SAP layer 27 is configured in the same manner as the absorbent sheet 21 of the first embodiment, except that the second hydrophilic nonwoven fabric 25 is used instead of the first hydrophilic nonwoven fabric 25, and is surrounded by the joints 28. Inside the plurality of first and second closed spaces 29 of the surrounded first and second SAP layers 27, the superabsorbent polymer 12 is enclosed in a non-adhesive state. In the absorbent sheet 21 of the second form, the first closed space 29 of the first SAP layer 27 and the second closed space 29 of the second SAP layer 27 overlapping therewith in the thickness direction are divided into the second are integrated through a hydrophilic nonwoven fabric 25, and have a disk-like shape when viewed in cross section. Also in the second embodiment, the number of the first and second closed spaces 29 is not limited to 16 (FIG. 3) in this embodiment, but may be any number.

The joints 28 of this embodiment are composed of the joints 28 provided along the entire edge of the absorbent sheet 21 and a plurality of joints 28 extending in the longitudinal direction and the width direction. The formation position of the joints 28 is not limited to this embodiment, and for example, the plurality of joints 28 extending radially, concentrically, or longitudinally and the plurality of joints 28 extending in the width direction are less than 90° or at an angle of 90°. A shape that intersects at an angle exceeding The width of the joint portion 28 is, for example, in the range of 1 mm or more and 5 mm or less from the viewpoint of diffusion of body fluids. If the width of the joint 28 is less than 1 mm, the joint 28 may come off. tends to be difficult. Further, the planar view shape of the first and second closed spaces 29 is not limited to the rectangular shape of the present embodiment, and examples thereof include a triangular shape, an equilateral triangular shape, a hexagonal shape, a perfect circle shape, a square shape, and the like. . The joint 28 can be formed using, for example, heat seal welding, ultrasonic welding, high frequency welding, or the like.

(super absorbent polymer)
The superabsorbent polymer 12 used for each of the first and second SAP layers 27 is not particularly limited as long as it can absorb bodily fluids and prevent backflow. , (starch-acrylic acid) graft copolymer, (acrylic acid-vinyl alcohol) copolymer, (isobutylene-maleic anhydride) copolymer and saponified products thereof. Among them, from the viewpoint of absorption per weight, polyacrylates are preferred, alkali metal polyacrylates are more preferred, and sodium polyacrylate is even more preferred. The superabsorbent polymer 12 can be used individually by 1 type or in combination of 2 or more types.

The superabsorbent polymer 12 is used, for example, in the form of particles, fibers, etc., but is preferably used in the form of particles from the viewpoint of ease of handling. At this time, by avoiding the use of a fine powder superabsorbent polymer 12 with poor fluidity as a powder and using a superabsorbent polymer 12 having a medium particle size, the basic performance related to absorption is improved and the absorption It is possible to reduce the rugged feel caused by hardening after the body 20 absorbs bodily fluids. The median particle size of the superabsorbent polymer 12 is, for example, in the range of 50 μm or more and 600 μm or less or in the range of 100 μm or more and 500 μm or less.

From the viewpoint of preventing gel blocking, the basis weight of the superabsorbent polymer 12 in the first and second SAP layers 27 is, for example, in the range of 150 g/m ² or more and 800 g/m ² or less, or 200 g/m 2 or more. It is in the range of ² or more and 700 g/m ² or less. By setting the basis weight of SAP within the numerical range described above, gel blocking in the first and second superabsorbent polymer layers 27 is further prevented, and the absorber 20 (absorbent sheet 21) is made soft. It can be tactile. Further, the thickness of one layer of the first and second superabsorbent polymer layers 27 is, for example, in the range of 0.5 mm or more and 10.0 mm or less or in the range of 0.5 mm or more and 6.0 mm or less. The basis weight and thickness of the first and second SAP layers 27 may be the same or different.

<Method for manufacturing absorbent sheet>
The absorbent sheet 21 of the first form can be manufactured according to a known method. For example, a first step of dispersing a predetermined amount of superabsorbent polymer 12 in the closed space formation scheduled region of the non-skin side surface of the first hydrophilic nonwoven fabric 25, and a first hydrophilicity in which the superabsorbent polymer 12 is dispersed A second step of obtaining a laminate by superimposing the skin side of the pulp-containing nonwoven fabric 26 (skin side of the pulp layer 31) on the non-skin side surface of the nonwoven fabric 25; A manufacturing method including a third step of forming a predetermined joint portion 28 by performing heat sealing, ultrasonic wave application, high frequency application, etc. from both sides of . The absorbent sheet 21 of the second form can also be produced in the same manner. The formation of the joint 28 using heat sealing, application of ultrasonic waves, application of high frequency, or the like may be performed from one side in the thickness direction of the above-described laminate.

<Perforated film>
As shown in FIG. 2, the perforated film 23 exhibits liquid permeability by having a plurality of perforations 33 penetrating from one surface to the other surface. The perforated film 23 is arranged on the non-skin side of the absorbent sheet 21 . By arranging the perforated film 23 at this location, the body fluid passing through the absorbent sheet 21 in the non-skin side direction is diffused in the longitudinal direction and the width direction, and is further disposed on the non-skin side of the perforated film 23. The liquid is evenly passed through the fluff absorber 22 that has been treated.

As the perforated film 23, a perforated resin film having perforations 33, which are through holes, can be used without particular limitation, and the perforation diameter of the perforation 33 on one surface and the perforation diameter of the perforation 33 on the other surface are different. The same open-pored resin film, the open-pored resin film in which the opening diameter of the openings 33 on one surface is larger than the opening diameter of the openings 33 on the other surface, and the openings 33 have a funnel-shaped three-dimensional shape, etc. mentioned. More specific examples include perforated polyethylene films and perforated polypropylene films. The number of pores 33 in the perforated film 23 is, for example, 50/cm ² or more from the viewpoint of liquid permeability, etc., and the upper limit depends on the aperture diameter of the pores 33, and the spread of body fluid in the plane direction. A range in which the permeability of the perforated film 23 to the fluff absorber 22 and the liquid permeability to the fluff absorber 22 can be obtained at a high level in a well-balanced manner may be appropriately selected. If the number of pores is less than 50/cm ² , the perforated film 23 tends to be hard and the liquid permeability tends to decrease. Moreover, from the viewpoint of liquid permeability and the like, the open area ratio is in the range of 25% or more and 50% or less, or in the range of 30% or more and 50% or less.

In the perforated film 23, the perforation diameters of the perforations 33 on the one and the other surfaces are, for example, in the range of 2 mm or less, or in the range of 0.50 mm or more and 0.65 mm or less, from the viewpoint of liquid diffusibility, strength, and workability. Range. If the pore diameter exceeds 2 mm, the strength, workability, etc. of the perforated film 23 tend to decrease. Moreover, when the opening diameter is smaller than 0.50 mm, the liquid permeability tends to decrease. The "aperture diameter" is obtained by photographing the perforated film 23 with a one-shot 3D shape measuring machine (trade name: VR-3100, manufactured by Keyence Corporation) and measuring the diameters of three arbitrarily selected apertures 33. Average value. The basis weight of the perforated film 23 is, for example, in the range of 20 g/m ² or more and 60 g/m ² or less, or in the range of 23 g/m ² or more and 30 g/m ² or less, from the viewpoint of strength and workability. If the basis weight is less than 20 g/m ² , the perforated film 23 tends to be easily broken, and if the basis weight exceeds 60 g/m ² , the touch tends to be hard. Further, the planar view shape of the perforated film 23 is not particularly limited, and for example, it may be a shape that covers the fluff absorber 22 entirely.

<Fluff absorber>
The fluff absorbent body 22 is arranged on the non-skin side of the perforated film 23 and contains absorbent fibers and superabsorbent polymer 12 . In the present embodiment, the fluff absorber 22 has a substantially rectangular shape in plan view, but is not limited thereto, and may be, for example, an hourglass shape, an I shape, an oval shape, an elliptical shape, or rounded corners. Rectangle etc. are mentioned. In a preferred embodiment, the lengthwise dimension and widthwise dimension of the fluff absorber 22 are slightly larger than the lengthwise dimension and widthwise dimension of the absorbent sheet 21, respectively.

As the fluff absorber 22, for example, a mixture of absorbent fibers and the superabsorbent polymer 12 and molded into a predetermined shape can be used without particular limitation. Absorbent fibers are not particularly limited as long as they are generally used for absorbent articles such as sanitary napkins, paper diapers, and incontinence pads. Examples include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, Examples include hydrophilic nonwoven fabrics. Among these, fluff pulp is preferable from the viewpoint of absorbability. Examples of fluff pulp include wood pulp (eg, bleached softwood kraft pulp (N-BKP) such as southern pine and Douglas fir), synthetic fibers, resin fibers, flocculated materials such as non-wood pulp, and the like. As the superabsorbent polymer 12, the same polymer as that used in the absorbent sheet 21 can be used without particular limitation.

The basis weight of the absorbent fibers in the fluff absorbent body 22 is, for example, in the range of 100 g/m ² to 800 g/m ² or in the range of 180 g/m ² to 450 g/m ² . This allows it to absorb more bodily fluids without sacrificing texture. The basis weight of the superabsorbent polymer 12 in the fluff absorbent body 22 is, for example, in the range of 50 g/m ² or more and 800 g/m ² or less, or in the range of 90 g/m ² or more and 400 g/m ² or less. By selecting the basis weight of the superabsorbent polymer 12 from the above range, it is possible to prevent gel blocking in the fluff absorbent body 22 and allow the fluff absorbent body 22 to absorb bodily fluids multiple times.

<Carrier sheet>
In this embodiment, the entire absorbent body 20, or either or both of the absorbent sheet 21 and the fluff absorbent body 22 may be wrapped with a carrier sheet (not shown). The carrier sheet is a hydrophilic sheet, which, for example, wholly or partially envelops the absorbent body 20 (or absorbent sheet 21 or fluff absorbent body 22). For example, the absorber 20 is placed in the center of the carrier sheet in the width direction, and if necessary, the carrier sheet and the absorber 20 are adhered with a hot-melt adhesive or the like. By overlapping the skin side of 20 and adhering with a hot-melt adhesive or the like as necessary, the absorbent body 20 is obtained by C-folding with the carrier sheet. As the carrier sheet, any hydrophilic sheet commonly used in this field can be used, for example, hydrophilic nonwoven fabrics such as thermal bonded nonwoven fabric, spunbond nonwoven fabric, air-laid nonwoven fabric, air-through nonwoven fabric, pulp-containing nonwoven fabric, tissue paper, and absorbent paper. etc. Among hydrophilic nonwoven fabrics, hydrophilic nonwoven fabrics such as thermal bonded nonwoven fabrics, spunbond nonwoven fabrics and air-through nonwoven fabrics are more preferred, and air-through nonwoven fabrics, pulp-containing nonwoven fabrics, spunbond nonwoven fabrics and the like are more preferred. Further, the thickness of the carrier sheet is, for example, 0.10 mm or more and 0.25 mm or less, and the basis weight is, for example, 5 g/m ² or more and 40 g/m ² or less.

<Back seat>
The back sheet 30 may be formed using a liquid-impermeable base material that does not allow body fluids held by the absorbent body 20 to wet the clothes of the wearer. , a composite sheet, which is a laminate of a resin film and a nonwoven fabric, and the like. The nonwoven fabric used for the composite sheet is not particularly limited in manufacturing method, and examples include single-layer nonwoven fabrics such as spunbond nonwoven fabrics and meltblown nonwoven fabrics, spunbond nonwoven fabric/meltblown nonwoven fabric laminates, spunbond nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric laminates. Composite nonwoven fabrics such as bodies, composite materials thereof, and the like. Examples of resin films include polyester, polyvinyl alcohol, polyethylene, polypropylene, composite films of polyethylene and polypropylene, and the like.

The basis weight of the backsheet 30 is, for example, in the range of 15 g/m ² or more and 60 g/m ² or less from the viewpoint of strength and workability. In addition, it is preferable that the back sheet 30 has air permeability in order to prevent stuffiness during wearing. In order to make the back sheet 30 air-permeable, for example, a filler may be added to the base resin film, or the back sheet 30 may be embossed. Calcium carbonate can be used as a filler, and a known method can be used without limitation as a method for blending the filler.

<Three-dimensional gather>
For example, the three-dimensional gathers 40 are formed along the longitudinal direction of the absorbent article 50 near both ends in the width direction of the absorbent article 50 in order to prevent lateral leakage of bodily fluid excreted by the wearer of the absorbent article 50. 10 is fixed to the skin side. The three-dimensional gathers 40 include an elastic stretchable member 40a and a water-repellent and/or waterproof sheet member 40b.

The elastic stretchable member 40a is arranged in the vicinity of the free end (the other end) of the sheet member 40b along the longitudinal direction, and provides the free end with uprightness so that the free end of the sheet member 40b and its neighboring area can be used by the wearer. Make it deformable according to the body shape of. In the present embodiment, the sheet member 40b has one widthwise end (fixed end) fixed near both widthwise ends of the skin side surface of the back sheet 30, and a widthwise intermediate portion fixed near both widthwise ends of the skin side surface of the top sheet 10. and the other end in the width direction is a free end having an upright property. The fixing position of the fixed end (one end in the width direction) of the sheet member 40b is not limited to this embodiment. all or part of each edge of the joined body, near both width direction ends of the skin side or non-skin side of the joined body, near both width direction ends of the skin side of the top sheet 10, and the like.

The sheet member 40b is a water-repellent and/or waterproof sheet, and is made of, for example, non-woven fabric. As the nonwoven fabric for the first sheet member, a water-repellent and/or waterproof (liquid-impermeable) nonwoven fabric made of hydrophobic fibers can be used without particular limitation. Composite nonwoven fabrics (SMS nonwoven fabrics), which are nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric laminates, and the like can be mentioned. The basis weight of the sheet member 40b is, for example, in the range of 13 g/m ² or more and 20 g/m ² or less. As the elastic stretchable member 40a, for example, a string-like, string-like, or belt-like member made of natural rubber, synthetic rubber, polyurethane, or the like can be used as appropriate.

<Method for manufacturing absorbent article>
The absorbent article 50 can be manufactured by a known manufacturing method. a step of accommodating the absorbent body 20 between the second sheet 60 and the back sheet 30; A manufacturing method including a step of fixing using ultrasonic embossing, high-frequency embossing, or the like, and a step of placing the three-dimensional gathers 40 at predetermined positions on the back sheet 30 and the top sheet 10 may be mentioned. The absorbent article 50 is appropriately provided with leg gathers, waist gathers, side flaps, and the like as necessary. The absorbent article 50 thus obtained is folded and manufactured.

Although the present invention has been described using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments and examples. It is obvious to those skilled in the art that various modifications or improvements can be made to the above embodiments. In addition, it is clear from the description of the scope of the claims that forms with such modifications or improvements can also be included in the technical scope of the present invention.

EXAMPLES The present embodiment will be described more specifically with reference to examples below.

<Examples 1 to 6 and Comparative Examples 1 to 4>
(Creation of absorbent sheet)
Each absorbent sheet of Examples 1 to 6 and Comparative Examples 1 to 4 having the structure shown in FIGS. made.

(Production of absorbent article)
An absorbent article having the structure shown in FIGS. 1 and 2 was produced.
The absorbent sheet obtained above, a perforated film having a pore diameter and number of pores shown in Table 1 and a basis weight of 26 g / m ² , and fluff pulp and SAP at the weight ratios shown in Table 1 were layered in this order with a fluff absorbent body mixed with , to prepare an absorbent body.
An air-through nonwoven fabric (basis weight: 25 g/m ^{2 ) as a liquid-permeable top sheet, an air-through nonwoven fabric (basis weight: 30 g/m 2 )} as a second sheet, and a spunbond/meltblown/spunbond laminated composite nonwoven fabric (basis weight: 15 g/m ² ), and a breathable polyethylene sheet (basis weight 32 g/m ² ) was used as a liquid-impermeable back sheet. When integrating the top sheet, the back sheet, and the absorbent body, the top sheet and the upper surface of the absorbent body are joined using a hot melt adhesive, and the length is 230 mm, the width is 90 mm, and the thickness is 15 mm Examples 1 to 6 and Absorbent articles of Comparative Examples 1 to 4 were produced.

The absorbent articles of Examples 1-6 and Comparative Examples 1-4 were evaluated as follows. Table 1 shows the results.
<Evaluation>
(Absorption speed 3 times method)
A measuring jig having a hole with an inner diameter of 19 mm and a weight of ^755.6 g was placed on the central part of the absorbent article in the longitudinal direction and the width direction, 20 ml of physiological saline was dropped from each of the holes on the top, and the time (seconds) was measured from the time the physiological saline contacted the absorbent article until the liquid was completely sucked into the circumference of the central circle of the jig. I did (first time). After 3 minutes had passed, the same time was measured (second time), and the third time was measured in the same way. Table 1 shows the first, second, third and total absorption rates (seconds).
(Wet spreadability)
With the top sheet facing up, 100 ml of physiological saline is poured toward the center of the absorbent body, and the time (seconds) for the physiological saline to spread 20 cm in the longitudinal direction of the product from the absorption site is measured. Spreadability was evaluated. Table 1 shows the results.
(Liquid return amount)
With the top sheet facing upward, pour 120 ml of physiological saline toward the center of the absorbent body and leave it for 10 minutes. No. 2 filter paper, diameter 55 mm) was placed, a weight of 35 kgf/cm ² was placed on it, and after 30 seconds had elapsed, the weight of the filter paper was measured, and the difference in the weight of the filter paper was defined as the liquid return amount (g).
(45 degree leak test)
A 45 degree leak test was performed to see the temporary absorption of bodily fluids. Two acrylic plates of 250 mm x 400 mm x 8 mm were fixed, one horizontally and the other at an angle of 45 degrees from the horizontally placed acrylic plate. The prepared absorbent article is attached to the acrylic plate on the side inclined at 45 degrees from the horizontal. 20 mL of physiological saline was poured toward the center of the absorbent article, and it was judged as "O" if no leakage occurred from the lower side of the absorbent article, and as "X" if leakage occurred.

From the results in Table 1, it can be seen that the absorbent articles of Examples 1 to 6 have a high absorption rate even after multiple absorptions, and have good liquid return and 45 degree leakability, making it difficult to leak. On the other hand, the absorbent articles of Comparative Examples 1 to 4 had a slow absorption rate, poor liquid return, or both.
Therefore, according to the present embodiment, it is possible to obtain an absorbent article having a high absorption speed and excellent temporary absorption because gel blocking is unlikely to occur.

REFERENCE SIGNS LIST 10 top sheet 12 superabsorbent polymer 20 absorbent body 21 absorbent sheet 21X absorbent sheet precursor 21Y absorbent sheet precursor 22 fluff absorbent body 23 perforated film 25 first and second hydrophilic nonwoven fabric 26 pulp-containing nonwoven fabric 27 First and second superabsorbent polymer layers (SAP layers)
28 Joining Part 29 Closed Space 30 Back Sheet 31 Pulp Layer 32 Nonwoven Fabric 33 Opening 40 Solid Gather 40a Elastic Stretchable Member 40b Sheet Member 50 Absorbent Article 60 Second Sheet

Claims (7)

An absorbent article comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body disposed therebetween,
The absorbent body is arranged on the wearer's skin side and contains an absorbent sheet having a superabsorbent polymer inside, and the absorbent body is arranged on the non-skin side of the wearer and contains absorbent fibers and the superabsorbent polymer. a fluff absorber for
a perforated film disposed between the absorbent sheet and the fluff absorber and having a plurality of perforations penetrating from one surface to the other surface;
The absorbent sheet has a first hydrophilic nonwoven fabric positioned on the skin side of the wearer and a non-skin side nonwoven fabric positioned on the non-skin side of the wearer,
The first hydrophilic nonwoven fabric and the non-skin side nonwoven fabric are joined so that a plurality of first closed spaces in which the superabsorbent polymer is enclosed are formed between them,
The non-skin-side nonwoven fabric is a pulp-containing nonwoven fabric that temporarily stores bodily fluids,
An absorbent article, wherein the superabsorbent polymer is enclosed in each first closed space of the absorbent sheet in a non-adhesive manner. The absorbent sheet has a second hydrophilic nonwoven fabric located further on the wearer's skin side of the first hydrophilic nonwoven fabric,
The second hydrophilic nonwoven fabric and the pulp-containing nonwoven fabric are joined together so that a plurality of second closed spaces enclosing the superabsorbent polymer are formed therebetween,
2. The absorbent article according to claim 1, wherein the superabsorbent polymer is enclosed in each second closed space of the absorbent sheet in a non-adhesive manner. 3. The absorbent article according to claim 1, further comprising a second sheet that diffuses bodily fluids and/or has cushioning properties between the top sheet and the absorbent body. 4. The absorbent article according to any one of claims 1 to 3, wherein the perforated film has a perforation diameter of 2 mm or less on one surface and the other surface of the perforations. The first hydrophilic nonwoven fabric or the second hydrophilic nonwoven fabric diffuses body fluids in the surface direction and the thickness direction, respectively, and has a basis weight of 10 g/m ² or more and 40 g/m ² or less, and a thickness of 0.5 g/m 2 or more. The absorbent article according to any one of claims 1 to 4, which is 05 mm or more and 0.3 mm or less. The first hydrophilic nonwoven fabric or the second hydrophilic nonwoven fabric contains one or more fibers selected from the group consisting of polyethylene fibers, polypropylene fibers, and polyester fibers, air through nonwoven fabric or spunbond nonwoven fabric The absorbent article according to any one of claims 1 to 5, wherein: The absorbent article according to any one of claims 1 to 6, wherein the pulp-containing nonwoven fabric has a basis weight of 30 g/ ^m2 or more and 60 g/ ^m2 or less.

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