JP2021115383A - Absorbent article - Google Patents

Abstract

To provide an absorbent article which is thin, has a high body fluid absorption amount, and is excellent in wear feeling.SOLUTION: The absorbent article includes a plurality of liquid permeable sheets 10, 11 and an absorber 12 arranged between the sheets 10, 11. The absorber 12 is a high absorbent sheet including two or more layers of composite type nonwoven fabrics 14 and a high absorbent polymer 22 enclosed between the composite type nonwoven fabrics 14. The composite type nonwoven fabric 14 is provided with a spunbonded nonwoven fabric 20 and a pulp fiber web 21 which is integrated with at least one surface of the spunbonded nonwoven fabric 20 and includes wood pulp fiber. The high absorbent sheet is positioned at an almost central part in a longitudinal direction and has a fixation area 12A where the high absorbent polymer 22 is fixed to the composite type nonwoven fabric 14 and a non-fixation area 12B which is positioned on both sides in the longitudinal direction of the fixation area 12A and the high absorbent polymer 22 is not fixed to the composite type nonwoven fabric 14.SELECTED DRAWING: Figure 1

Description

The present invention relates to absorbent articles.

Disposable auxiliary pads (hereinafter simply referred to as "auxiliary pads") are generally attached to the skin side of disposable disposable diapers (hereinafter simply referred to as "paper diapers"), and only the auxiliary pads that have absorbed body fluids due to incontinence or urination are replaced. It is used for the purpose of keeping it clean at all times and for further increasing the amount of body fluid absorbed in combination with disposable diapers.

Patent Document 1 includes a liquid-permeable top sheet, a back sheet, and an absorber arranged between them, and the back sheet is a disposable material made of a material capable of permeating a part of body fluid such as urine. Auxiliary pads are disclosed. Since this auxiliary pad is thick, when shared with a disposable diaper, the thickness becomes too large, it is easy for others to wear it, and it is not comfortable to wear. In order to reduce the thickness of the auxiliary pad, for example, a SAP sheet containing two non-woven fabrics and a highly absorbent polymer (hereinafter, also referred to as “SAP”) supported between them may be used as an absorber. It has been proposed (Patent Document 2).

Japanese Unexamined Patent Publication No. 2001-70341 Japanese Unexamined Patent Publication No. 2009-22670

Since the auxiliary pad is shared with disposable diapers, it is desirable that the pad is thin and small in size. However, when the auxiliary pad is made thin, the diffusibility of the body fluid in the auxiliary pad is lowered, and the body fluid tends to be absorbed only in the portion close to the urination area of the wearer. As a result, the absorption capacity of the entire auxiliary pad is often not fully utilized. In addition, if the amount of body fluid absorbed is increased while the absorbent pad is thin, the amount of highly absorbent polymer, which is the main cause of the rugged feel, increases, which causes problems such as a decrease in wearing feeling and an increase in size. .. Furthermore, thinning the auxiliary pad using a normal disposable diaper material reduces the strength, especially after absorption of body fluids. If the basis weight is increased in order to increase the strength of the material, there arises a problem that the tactile sensation becomes hard. As described above, in the auxiliary pad size, thinness, absorption amount, and wearing feeling are contradictory characteristics, and it is difficult to have all of them at a high level, and a means for solving them is required.

An object of the present invention is to provide an absorbent article having both thinness and an appropriate size while having sufficient absorbency, diffusibility and strength.

As a result of diligent research to solve the above problems, the present inventor has found that a desired absorbent article can be obtained by using a predetermined highly absorbent sheet instead of the conventional SAP sheet as the absorber. , The present invention has been completed. The present invention. As a preferred embodiment, for example, the following absorbent articles (1) to (4) are provided.

(1) An absorbent article comprising a plurality of liquid-permeable sheets and an absorber arranged between the sheets, wherein the absorber is a composite non-woven fabric having two or more layers and the composite non-woven fabric. It is a highly absorbent sheet containing a highly absorbent polymer enclosed between the two, and the composite nonwoven fabric is integrated with the spunbonded nonwoven fabric and at least one surface of the spunbonded nonwoven fabric to form wood pulp fibers. The highly absorbent sheet is located substantially in the center of the longitudinal direction, and includes a pulp fiber web including, a fixing region in which the highly absorbent polymer is fixed to the composite nonwoven fabric, and both sides in the longitudinal direction of the fixing region. An absorbent article, which is located in the above and has a non-adhesive region in which the highly absorbent polymer is not adhered to the composite nonwoven fabric.
(2) The absorbent article according to (1) above, wherein the longitudinal dimension of the fixing region is 20% or more and 70% or less of the longitudinal dimension of the absorbent article.
(3) The absorbent article according to (1) or (2) above, wherein the composite non-woven fabric is a water-flow entangled integrated product of the spunbonded non-woven fabric and the pulp fiber web.
(4) The material of the spunbonded non-woven fabric is at least one selected from the group consisting of nylon (trade name), vinylon, polyester, acrylic resin, polyethylene, polypropylene, and polystyrene (1) to (3). Any of the absorbent articles.

According to the present invention, there is provided an absorbent article having sufficient absorbency, diffusibility and strength, and having both thinness and an appropriate size.

It is a top view which shows typically the structure of the absorbent article which concerns on 1st Embodiment of this invention. It is a schematic cross-sectional view in the width direction in the XX cutting line shown in FIG. It is a schematic cross-sectional view in the width direction in the YY cutting line shown in FIG. It is sectional drawing which shows typically the structure of the absorber in the absorbent article which concerns on 1st Embodiment of this invention.

In the present specification, it is defined as follows. When the absorbent article is worn, it means that the absorbent article is worn on the body before and after the absorption of body fluid. The longitudinal direction of the absorbent article is the direction extending to the front and back of the body through the crotch portion of the wearer when the absorbent article is worn, the width direction is a direction substantially orthogonal to the longitudinal direction, and the thickness direction is the above-mentioned direction. It is a direction substantially perpendicular to a plane including a longitudinal direction and a width direction of, for example, a stacking direction of each component member. Of the front and back surfaces of the absorbent article and each component, the surface in contact with the wearer's skin or the surface facing the wearer's skin is the skin side, and the surface in contact with the wearer's clothing or the surface facing the wearer's clothing. Is the non-skin side. In addition, in all embodiments, components having the same or similar functions and / or effects are designated by the same reference numerals, and the description of the first embodiment is incorporated. Body fluid refers to the liquid excreted from the body such as urine, blood, and water in loose stool.

Hereinafter, the absorbent article 1 of the present embodiment will be described in detail with reference to the drawings. FIG. 1 is a schematic plan view showing the absorbent article 1. 2 and 3 are schematic cross-sectional views taken along the line XX and YY cut lines shown in FIG. 1 of the absorbent article 1, respectively. FIG. 4 is a schematic cross-sectional view showing the absorber 12 according to the present embodiment. In FIGS. 2 to 4, each component is described so as to be in close contact with each other, but at least one of the components may have one or more gaps. Further, each figure does not define the magnitude relationship of the dimensions in the longitudinal direction, the width direction, and the thickness direction of each component member of the absorbent article 1.

The absorbent article of the present embodiment can be used as an absorbent article for various purposes regardless of whether it is for a baby or an adult, and examples thereof include a light incontinence pad, a pants-type disposable diaper, a tape-stopping disposable diaper, and a disposable disposable disposable diaper. However, among these, the embodiment in which the absorbent article of the present embodiment is used as an inner (auxiliary pad) and various disposable diapers are used as an outer is more preferable. The dimensions of the absorbent article of the present embodiment in the longitudinal direction and the width direction are not particularly limited, but are, for example, 100 mm or more and 800 mm or less, and 50 mm or more and 500 mm or less, respectively. By adjusting the dimensions of the absorbent article of the present embodiment to the above range, it can be used for various purposes.

<Absorbable article>
The absorbent article 1 of the present embodiment shown in FIGS. 1 to 4 includes a plurality of layers of the liquid permeable sheet 10 and an absorber 12 located between the layers of the liquid permeable sheet. By adopting such a configuration, the absorbent article 1 of the present embodiment can absorb body fluids from both sides in the thickness direction, and even if the thickness is reduced, the absorption performance as a whole is sufficiently exhibited. be able to.

Hereinafter, each of the sheet-shaped or plate-shaped constituent members will be described in detail in the order of the liquid-permeable sheet 10 located on the skin side, the liquid-permeable sheet 11 located on the non-skin side, and the absorber 12. In addition, each constituent member may have a three-dimensional shape other than a sheet shape and a plate shape.

(Liquid permeable sheet)
The liquid-permeable sheet 10 located on the skin side and the liquid-permeable sheet 11 located on the non-skin side are liquids such that the body fluid permeates the liquid-permeable sheets 10 and 11 and moves to the absorber 12. It is composed of a transparent base material. Examples of the liquid-permeable base material for a liquid-permeable sheet include a non-woven fabric such as an air-through non-woven fabric, a thermal bond non-woven fabric, and a spunbond non-woven fabric, a composite non-woven fabric in which the same or different kinds of non-woven fabrics such as thermal bond / spunbond are laminated, and urethane. Examples thereof include a foam film made of foam, polyethylene foam, and a composite sheet which is a laminate of two or more of these. Among these, a laminate of a thermal bond non-woven fabric, a spunbond non-woven fabric, and a thermal bond non-woven fabric / spunbond non-woven fabric is used from the viewpoints of transferability of body fluid to the absorber 12 and diffusivity of body fluid in the absorbent article 1. A hydrophilic non-woven fabric such as a composite non-woven fabric is preferable.

The liquid-permeable sheet 10 located on the skin side and the liquid-permeable sheet 11 located on the non-skin side may be embossed or perforated on the surface, for example, in order to improve the liquid permeability. .. The embossing and drilling can be carried out by a known method without limitation. Further, in order to reduce irritation to the skin, the liquid permeable sheet 10 may contain a lotion, an antioxidant, an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizer and the like.

The basis weight of the liquid-permeable sheets 10 and 11 located on the skin side and the liquid-permeable sheet 11 located on the non-skin side of the present embodiment is not particularly limited, but from the viewpoint of strength, processability and liquid return amount. It is preferably 15 g / m ² or more and 200 g / m ² or less, and more preferably 18 g / m ² or more and 40 g / m ² or less. The shapes of the liquid-permeable sheets 10 and 11 are not particularly limited, but may be any shape that covers the absorber 12, which is required to guide the body fluid to the absorber 12 so as not to leak.

The liquid permeable sheet 10 located on the skin side and the liquid permeable sheet 11 located on the non-skin side may have different liquid permeable properties. For example, the liquid permeability of what is arranged on the skin side may be larger than the liquid permeability of what is arranged on the non-skin side. According to this configuration, in the embodiment in which the absorbent article 1 of the present embodiment is the inner and various disposable diapers are the outer, the disposable diapers can be made to last longer while improving the absorption efficiency of body fluids. Further, the liquid-permeable sheet 11 arranged on the non-skin side is composed of a liquid-permeable sheet and a liquid-impermeable sheet, and the area of the liquid-permeable sheet is the liquid-impermeable sheet. It may be larger than the area of, and vice versa.

(Absorber)
As shown in FIG. 2, the absorber 12 is a highly absorbent sheet containing two or more layers of the composite nonwoven fabric 14, and the highly absorbent polymer 22 encapsulated between the layers of the composite nonwoven fabric 14. The composite nonwoven fabric 14 used here has good liquid permeability and strength, and can be made thin. Further, the highly absorbent polymer 22 can be formed in the form of particles having a relatively small diameter. Therefore, the thickness of the absorber 12 can be made relatively thin, the strength can be maintained even after the body fluid is absorbed, and the highly absorbent polymer 22 that has absorbed the body fluid and swelled and becomes heavy can be stably supported.

The absorber 12 (highly absorbent sheet) is located at the central portion in the longitudinal direction, and is located on both sides in the longitudinal direction of the fixed region 12A in which the highly absorbent polymer 22 is fixed to the composite non-woven fabric 14 and the fixed region 12A. The highly absorbent polymer 22 has a non-fixed region 12B in which the composite non-woven fabric 14 is not fixed. The fixed area 12A mainly contacts the wearer's urination area, the non-fixed area 12B mainly contacts the area other than the wearer's urination area, and a relatively large amount of body fluid is discharged from the urination area, other than the urination area. The amount of body fluid discharged from the area is often relatively small. On the other hand, by forming the absorber 12 with a fixed region 12A in the central portion in the longitudinal direction and a non-fixed region 12B on both sides thereof, the fixed region 14 mainly in contact with the urination region of the wearer is a composite type. The highly absorbent polymer 22 fixed to the non-woven fabric 14 stably absorbs a relatively large amount of body fluid, and a relatively small amount of body fluid that could not be absorbed in the fixing area 12A or a relatively small amount discharged from other than the urination region. It becomes possible to receive and absorb the body fluid of the above by the non-adhesive highly absorbent polymer 22 which can move along the flow of the body fluid in the non-adhesive region 12B. As a result, it is possible to provide the absorbent article 1 which can utilize the absorption performance of the entire absorber 12 evenly, has extremely good absorption efficiency, and does not have a local increase in thickness after body fluid absorption.

The longitudinal dimension of the fixing region 12A is 20% or more of the longitudinal dimension of the absorbent article 1 from the viewpoint of uniformly exerting the absorption performance originally possessed by the absorbent article 1 while reducing the thickness of the absorbent article 1. It is preferably 70% or less, and the balance is the longitudinal dimension of the non-fixed region 12B. Below 20%, there is a tendency that a relatively large amount of body fluid discharged from the wearer's urinary region cannot be sufficiently absorbed. If it exceeds 70%, a relatively large amount of body fluid discharged from the wearer's urination area can be sufficiently absorbed, but there is a tendency that the body fluid discharged from other than the urination area cannot be sufficiently absorbed, and body fluid absorption. The thickness of the later fixing region 12A tends to increase remarkably, and the wearing feeling tends to be greatly reduced.

As shown in FIG. 2, the absorber 12 (highly absorbent sheet) contains a two-layer composite nonwoven fabric 14 and a highly absorbent polymer 22 encapsulated between the composite nonwoven fabric 14. The composite nonwoven fabric 14 of the present embodiment has two layers, but the present invention is not limited to this, and three or more layers may be used. The composite non-woven fabric 14 can quickly absorb body fluids such as urine and loose stool, and the highly absorbent polymer 22 supported between the multi-layered composite non-woven fabric 14 has a high body fluid absorption capacity and is collected by the composite non-woven fabric 14. Absorbs and retains body fluids that have come into contact with the highly absorbent polymer 22. Further, since the composite nonwoven fabric 14 can be formed in a relatively thin layer and the highly absorbent polymer 22 can also be formed in the form of particles having a relatively small diameter, the absorber 12 can be formed in a thin thickness. Therefore, by configuring as in the present embodiment, it is possible to obtain an absorber 12 having a large amount of body fluid absorption and a thin wall.

In the fixing region 12A of the absorber 12, the highly absorbent polymer 22 is fixed to the surface of the composite nonwoven fabric 14 by the hot melt adhesive 23. The method for fixing the highly absorbent polymer 22 to the composite non-woven fabric 14 is not limited to fixing with a hot melt adhesive, and for example, a method such as heat fusion or ultrasonic bonding may be used. In the non-adhesive region 12B of the absorber 12, the highly absorbent polymer 22 is scattered between the composite nonwoven fabrics 14 without being adhered. The method of arranging the highly absorbent polymer 22 between the composite nonwoven fabrics 14 is not particularly limited, and may be arranged substantially regularly as shown in FIG. 2, but may be arranged irregularly. From the viewpoint of improving body fluid absorption, it is preferable to provide a space around the highly absorbent polymer 22 that can absorb body fluid and swell. From this point of view, the basis weight of the highly absorbent polymer is preferably 30 g / m ² or more and 300 g / m ² .

The composite non-woven fabric 14 of the present embodiment is an integral product of the spunbonded non-woven fabric 20 and the pulp fiber web 21. Here, the fact that the spunbonded nonwoven fabric 20 and the pulp fiber web 21 are integrated means that, specifically, in normal use, the pulp fibers mainly contained in the pulp fiber web 21 are easily separated from the composite nonwoven fabric 14. It means that it will not fall out. In particular, when the pulp fibers are water-entangled with the spunbonded nonwoven fabric 20 by a water jet to form the pulp fiber web 21, the pulp fibers are very unlikely to fall off from the composite nonwoven fabric 14. As a preferred embodiment of the integrated product, for example, on one surface of the spunbonded nonwoven fabric 20, a part of the fibers constituting the spunbonded nonwoven fabric 20 and a part of the pulp fibers constituting the pulp fiber web 21 are entangled with each other. Examples thereof include a form in which the spunbonded nonwoven fabric 20 and the pulp fiber web 21 are firmly adhered to each other, and a part of the pulp fibers penetrates the spunbonded nonwoven fabric 20 in the thickness direction and is exposed on the other surface of the spunbonded nonwoven fabric 20. Such an integral body can be obtained, for example, by the water flow confounding method.

As the spunbonded non-woven fabric 20 included in the composite non-woven fabric 14, a non-woven fabric produced by a spunbond method, a melt blow method, a flash spinning method or the like can be used without particular limitation. , Nylon (trade name), vinylon, polyester, acrylic resin, polyethylene, polypropylene, polystyrene and other synthetic resins can be preferably used. The spunbonded non-woven fabric 20 is produced by using synthetic resin fibers made of these materials, and may contain a plurality of synthetic resin fibers. The basis weight of the spunbonded non-woven fabric 20 is not particularly limited, but is 7 g / m ² or more and 20 g / m ² or less from the viewpoint of tensile strength and softness of touch. The spunbonded non-woven fabric 20 is preferably hydrophilically treated with a known hydrophilic agent such as a surfactant. By applying the hydrophilic agent, the body fluid can easily reach the pulp fiber web 21 through the spunbonded non-woven fabric 20.

Since the pulp fiber web 21 has good body fluid absorption, for example, the body fluid that has locally passed through the spunbonded nonwoven fabric 20 is quickly diffused, and the body fluid is easily diffused over the entire region of the absorber 12. Therefore, in the present embodiment, the spunbonded non-woven fabric 20 is located outside the absorber 12, and the pulp fiber web 21 is located inside the absorber 12. However, vice versa, the spunbonded non-woven fabric 20 and the pulp fiber web 21 can exhibit substantially the same functions. As a result, the absorption capacity of the entire absorber 12 can be exhibited.

As the pulp fiber web 21, a non-woven fabric mainly composed of pulp fibers can be used without particular limitation, and further, the pulp fiber web 21 formed by spraying pulp fibers on the surface of the spunbonded non-woven fabric 20 by a water flow entanglement method may be used. The pulp fiber used here is not particularly limited, but is preferably coniferous bleached kraft pulp (NBKP) such as radiata pine, slash pine, southern pine, lodge pole pine, spruce and douglas fur. NBKP can be used alone or in combination of two or more. The basis weight of the pulp fiber web is not particularly limited, but is preferably 30 g / m ² or more and 70 g / m ² or less from the viewpoint of uniformity, tactile sensation, absorbability and the like.

The weight composition ratio of the spunbonded nonwoven fabric 20 and the pulp fiber web 21 in the composite nonwoven fabric 14 is, for example, from the viewpoint of absorbability and diffusivity of body fluid, etc. (weight of the spunbonded nonwoven fabric 20 / weight of the pulp fiber web 21). ), Which is 40/60% by weight or more and 10/90% by weight or less. Within this range, the supportability of the pulp fiber web 21 by the spunbonded non-woven fabric 20 and the absorbability and body fluid diffusibility of the pulp fiber web 21 are compatible at a high level in a well-balanced manner.

Further, with respect to the composite nonwoven fabric 14, the force (tensile strength) required to stretch the test piece formed in a width of 25 mm by 2 mm in the vertical direction in the tensile strength test with Tencilon is not particularly limited, but is preferably 1.5 N /. It is 25 mm or more and 5.0 N / 25 mm or less.

The composite nonwoven fabric 14 of the present embodiment includes, for example, a step of laminating and integrating the spunbonded nonwoven fabric 20 and the pulp fiber web 21, and pressurizing the obtained laminate using a roll or the like as necessary. It can be produced by a production method including a step of heating and / or heating. Further, the spunbonded nonwoven fabric 20 and the pulp fiber web 21 may be integrated by using an adhesive or by sewing. The composite nonwoven fabric 14 can also be obtained by a manufacturing method including a water flow entanglement step of injecting pulp fibers constituting a pulp fiber web together with a water jet (water stream) onto the spunbonded nonwoven fabric 20. The composite nonwoven fabric 14 may be embossed.

Among the above-mentioned manufacturing methods, a method using a water flow confounding method is preferable from the viewpoint of achieving both softness and strength in appearance and touch. In the water flow entanglement step, the hole diameter Φ of the water jet nozzle for injecting the water jet is preferably 0.06 mm or more and 0.15 mm or less, and the water jet nozzle The interval is preferably 0.4 mm or more and 1.0 mm or less.

The highly absorbent polymer 22 is not particularly limited as long as it can absorb urine and prevent backflow, and is composed of polyacrylic acid salt, polyaspartate, (starch / acrylic acid) graft copolymer, ( Examples thereof include a copolymer (acrylic acid / vinyl alcohol), a copolymer (isobutylene / maleic anhydride), and a saponified product thereof. Among these, polyacrylate is preferable, and sodium polyacrylate is more preferable, from the viewpoint of the amount of absorption per weight.

Further, by avoiding the use of the fine powder high-absorbent polymer 22 having poor fluidity as a powder, the basic performance regarding absorption is improved, and the high-absorbency sheet 10 becomes rugged or rough. From the viewpoint of reducing the tactile sensation, the medium particle size of the highly absorbent polymer 22 is preferably 50 μm or more and 600 μm or less, and more preferably 100 μm or more and 500 μm or less.

In the absorber 12, for example, a highly absorbent polymer is arranged on the surface of the pulp fiber web 21 in the one-layer composite non-woven fabric 14 at a predetermined basis weight, and the highly absorbent polymer 22 located in the fixing region 12A is fixed, and then the absorbent body 12 is already fixed. It can be produced by superimposing the pulp fiber webs 21 of the composite non-woven fabric 14 on top of each other, joining the edges of the four enclosures, and further joining the boundaries between the fixed region 12A and the non-fixed region 12B. Examples of the joining method include a method using a hot melt adhesive, heat fusion, ultrasonic bonding and the like. When a hot melt adhesive is used for the boundary between the fixed region 12A and the non-fixed region 12B, the hot melt adhesive is previously bonded to two predetermined regions extending in the width direction of the surface of the pulp fiber web 21 in the one-layer composite nonwoven fabric 14. The agent may be applied, and the pulp fiber webs 21 of the composite non-woven fabric 14 may be superposed on each other, and then the two predetermined regions may be heated and bonded.

<Manufacturing method of absorbent articles>
The method for producing the absorbent article 1 is not particularly limited, and a conventionally known method can be adopted. For example, the liquid permeable sheet 11, the absorber 12, and the skin side located on the non-skin side from the clothing side. The liquid permeable sheet 10 located on the skin side is laminated in this order, and the liquid permeable sheet 10 located on the skin side and the liquid permeable sheet 11 located on the non-skin side are partially or completely laminated with a hot melt adhesive or the like. The absorbent article 1 can be manufactured by fixing using heat embossing, ultrasonic embossing, high frequency embossing, or the like. Then, this may be individually wrapped in a package, and then folded in three in the longitudinal direction.

Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope of the above embodiments, and various changes or improvements are made to the above embodiments. It is clear to those skilled in the art that is possible. Further, it is clear from the description of the scope of claims that the form to which such a modification or improvement is added may be included in the technical scope of the present invention.

1 Absorbent article 10 Liquid permeable sheet located on the skin side 11 Liquid permeable sheet located on the non-skin side 12 Absorbent 14 Composite non-woven fabric 20 Spunbond non-woven fabric 21 Pulp fiber web

Claims (4)

An absorbent article comprising a plurality of liquid permeable sheets and an absorber arranged between the sheets.
The absorber is a highly absorbent sheet containing two or more layers of a composite nonwoven fabric and a highly absorbent polymer sealed between the composite nonwoven fabrics.
The composite nonwoven fabric comprises a spunbonded nonwoven fabric and a pulp fiber web integrated with at least one surface of the spunbonded nonwoven fabric and containing wood pulp fibers.
The high-absorbent sheet is located at a substantially central portion in the longitudinal direction, and is located at a fixing region where the high-absorbent polymer is fixed to the composite non-woven fabric and on both sides in the longitudinal direction of the fixed region, and is the high-absorbent polymer. An absorbent article having a non-fixed region in which is not fixed to the composite nonwoven fabric. The absorbent article according to claim 1, wherein the longitudinal dimension of the fixing region is 20% or more and 70% or less of the longitudinal dimension of the absorbent article. The absorbent article according to claim 1 or 2, wherein the composite non-woven fabric is a water-flow entangled integrated product of the spunbonded non-woven fabric and the pulp fiber web. The material of the spunbonded non-woven fabric is at least one selected from the group consisting of nylon (trade name), vinylon, polyester, acrylic resin, polyethylene, polypropylene, and polystyrene, according to any one of claims 1 to 3. The absorbent article described.

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