JP2021178064A - Absorbent article - Google Patents

Abstract

To improve wearing feeling in an absorbent article used continuously for a long period of time.SOLUTION: An absorbent article includes an absorbent core (31) for absorbing body fluids, a top sheet (10) that is disposed closer to a skin surface side than the absorbent core and includes water-absorbent fibers, and a liquid-impermeable back sheet that is disposed closer to a non-skin surface side than the absorbent core. When a sweat transfer value indicating the amount of sweat transferred from a skin-facing surface of the top sheet to the inside of the absorbent article is stipulated as a ratio of the weight of sweat transferred to the absorbent article when 120 seconds elapse relative to the weight of sweat on the skin-facing surface of the top sheet, the sweat transfer value of the second time when the sweat transfer value is continuously measured twice is higher than the sweat transfer value of the first time.SELECTED DRAWING: Figure 1

Description

The present invention relates to an absorbent article comprising a topsheet containing water-absorbent fibers.

Patent Document 1 discloses an absorbent article having cotton fibers as water-absorbent fibers on the top sheet. A water repellent is applied to the top sheet of Patent Document 1. The absorbent article of Patent Document 1 is configured to be able to achieve both improvement of touch by cotton fibers and suppression of rewetting in which absorbed excrement returns to the surface side of the top sheet.

Japanese Unexamined Patent Publication No. 2010-269029

While the top sheet having cotton fibers can improve the feel, there is a problem that the top sheet itself has a high liquid-retaining property and a sticky feeling tends to remain on the surface. In particular, absorbent articles such as sanitary napkins and vaginal discharge sheets adhere to the skin through the worn articles, so that the sticky feeling of the top sheet may be noticeably felt. In addition, some absorbent articles may be used continuously for a long time, and further improvement in wearing comfort is required.

The absorbent article according to one embodiment is arranged on the skin surface side of the absorption core and the absorption core, the top sheet having the water-absorbent fiber, and the non-skin surface side of the absorption core. , With a liquid-impermeable backsheet. The sweat transfer value, which is an index of the amount of sweat transferred from the skin-facing surface of the top sheet to the inside of the absorbent article, is the absorbent article after 120 seconds with respect to the weight of sweat on the skin-facing surface of the top sheet. When defined as the ratio of the weight of the sweat transferred to the above, the second sweat transfer value when the sweat transfer value is measured twice in succession is higher than the first sweat transfer value.

The absorbent article according to another aspect is arranged on the skin surface side of the absorption core that absorbs the body fluid, the top sheet having the water-absorbent fiber, and the non-skin surface side of the absorption core. It is provided with a liquid-impermeable back sheet. The sweat transfer value, which is an index of the amount of sweat transferred from the skin-facing surface of the top sheet to the inside of the absorbent article, is the absorbent article after 120 seconds with respect to the weight of sweat on the skin-facing surface of the top sheet. The first sweat transfer value is 0.43 or more, as defined as the ratio of the weight of the sweat transferred to. The ratio of the weight of the sweat that has returned to the skin surface side of the top sheet to the weight of the sweat that has transferred to the absorbent article in the first measurement of the sweat transfer value is 0.22 or less.

FIG. 1 is a plan view of the absorbent article according to the first embodiment as viewed from the skin surface side. FIG. 2 is a plan view of the absorbent article according to the first embodiment as viewed from the non-skin surface side. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. FIG. 4 is a diagram showing an adhesive region of the top sheet. FIG. 5 is a plan view of the unfolded state of the absorbent article according to the second embodiment. FIG. 6 is a schematic cross-sectional view of the laminated sheet.

(1) Outline of Embodiment At least the following matters will be clarified by the description of this specification and the accompanying drawings.
The absorbent article according to one embodiment is arranged on the skin surface side of the absorption core and the absorption core, the top sheet having the water-absorbent fiber, and the non-skin surface side of the absorption core. , With a liquid-impermeable backsheet. The sweat transfer value, which is an index of the amount of sweat transferred from the skin-facing surface of the top sheet to the inside of the absorbent article, is the absorbent article after 120 seconds with respect to the weight of sweat on the skin-facing surface of the top sheet. When defined as the ratio of the weight of the sweat transferred to the above, the second sweat transfer value when the sweat transfer value is measured twice in succession is higher than the first sweat transfer value. According to this aspect, the force for drawing in the sweat discharged on the top sheet is higher in the second time than in the first time, and the sweat can be taken in continuously. In addition to improving the feel of the skin by using water-absorbent fibers such as cotton fibers for the top sheet, it is possible to suppress the sticky feeling caused by continuously drawing in sweat, and the wearing feeling can be further improved.

According to a preferred embodiment, the first sweat transfer value is 0.43 or more. According to this aspect, since the first sweat transfer value is 0.43 or more and the sweat drawing property is high, the sticky feeling due to the sweat drawing can be suppressed, and the wearing feeling can be further improved.

According to a preferred embodiment, the ratio of the weight of the sweat that has returned to the skin surface side of the top sheet to the weight of the sweat that has transferred to the absorbent article in the second measurement of the sweat transfer value is 0.22 or less. Is. According to this aspect, it is possible to suppress the return of sweat once drawn. By suppressing rewetting, the wearing feeling can be further improved.

The absorbent article according to another aspect is arranged on the skin surface side of the absorption core that absorbs the body fluid, the top sheet having the water-absorbent fiber, and the non-skin surface side of the absorption core. It is provided with a liquid-impermeable back sheet. The sweat transfer value, which is an index of the amount of sweat transferred from the skin-facing surface of the top sheet to the inside of the absorbent article, is the absorbent article after 120 seconds with respect to the weight of sweat on the skin-facing surface of the top sheet. When defined as the ratio of the weight of the sweat transferred to the above, the first sweat transfer value is 0.43 or more, and the top of the sweat transferred to the absorbent article in the measurement of the first sweat transfer value. The ratio of the weight of the sweat that has returned to the skin surface side of the sheet is 0.22 or less. Since the first sweat transfer value is 0.43 or more and the sweat drawing property is high, the sticky feeling due to the sweat drawing can be suppressed, and the wearing feeling can be further improved. In addition, it is possible to suppress the return of sweat once drawn. By suppressing rewetting, the wearing feeling can be further improved.

According to a preferred embodiment, the second sweat transfer value when the sweat transfer value is measured twice in succession is 0.49 or more. According to this aspect, since the second sweat transfer value is 0.49 or more and the sweat drawing property is high, the sticky feeling due to the sweat drawing can be suppressed, and the wearing feeling can be further improved.

According to a preferred embodiment, in the core arrangement region where the absorption core is arranged, a plurality of bending base points serving as a base point for bending the absorbent article are provided, and the plurality of bending base point portions are front and rear. It is provided at intervals in the direction, and the widest interval among the intervals between the bending base points is 20 mm or less. According to this aspect, in the core arrangement region, an absorption core having a relatively high rigidity among the absorbent articles is arranged, and there is a possibility that it is difficult to follow the body. However, since the bent base point portion is provided, it is easily deformed through the bent base point portion. The widest interval among the intervals between the bent base points is 20 mm or less, and since the bent base points are arranged at relatively short intervals, it is easy for the absorbent article to follow the body in the cross section along the front-rear direction. .. By arranging the absorbent article along the body, it is easy to bring the top sheet into contact with the body over the entire absorbent article. A large area for drawing in sweat can be provided, and the wearing feeling can be further improved.

According to a preferred embodiment, the non-skin surface of the top sheet is provided with an adhesive region coated with an adhesive, and the adhesive region is provided at intervals in the front-rear direction, and the adhesive region is provided. The average spacing between the regions is equal to or less than the widest spacing among the spacing of the bending base points. According to this aspect, in the adhesive region, the top sheet is adhered to the member located on the non-skin surface side, so that the top sheet is suppressed from being lifted and easily arranged along the body together with the absorption core. Since the average spacing between the bonded areas is less than or equal to the widest spacing between the folding baselines, the topsheet can be placed along the body along with the absorbent core within the widest spacing between the folding baselines. It is possible to easily bring the top sheet into contact with the body over the entire absorbent article. A large area for drawing in sweat can be provided, and the wearing feeling can be further improved.

According to a preferred embodiment, the non-skin surface of the absorbent article is provided with an adhesive portion for joining the absorbent article to the worn article, and the adhesive portions are spaced apart in the front-rear direction. The average distance between the bonded regions is equal to or less than the widest distance among the intervals of the bending base points. According to this aspect, in the adhesive portion, the absorbent article is joined to the worn article, so that the absorbent article is easily arranged along the body. Since the average distance between the adhesive parts is equal to or less than the widest distance between the bent base points, the top sheet can be placed along the body within the widest distance between the bent base points and absorbed. It is easy to bring the top sheet into contact with the body over the entire sex article. A large area for drawing in sweat can be provided, and the wearing feeling can be further improved.

According to a preferred embodiment, the absorbent article is provided with a migration promoting section that promotes the transfer of sweat from the top sheet to the absorbing core, and the migration promoting section has at least the thickness of the top sheet. It is composed of at least one of a sheet compression portion compressed in the direction and a sheet opening formed in the top sheet. According to this aspect, the transfer promoting portion can promote the transfer of sweat from the top sheet to the absorption core, suppress the sticky feeling due to the drawing of sweat, and further improve the wearing feeling.

According to a preferred embodiment, the sheet pressing portion is provided as the transition promoting portion, and the top sheet mainly has an upper layer mainly containing cotton fibers and a heat-sealing fiber, and the upper layer is provided. It is a laminated sheet with a lower layer located on the non-skin surface side. According to this aspect, the lower layer has heat-sealing fibers, and when the sheet pressing portion is formed, the fibers are fused to each other, and it is easy to maintain the shape. Therefore, while the upper layer mainly containing cotton fibers improves the feel of the skin, the migration promoting portion can also improve the draw-in property of body fluids.

According to a preferred embodiment, the water-absorbent fiber is a cotton fiber, and the absorbent article has a plant-derived scent component or a plant-reminiscent scent component. According to this aspect, the wearer can obtain a skin-friendly sense of security due to the plant-derived scent component while experiencing the effect of the tactile sensation such as the softness of the cotton fiber. In addition, when experiencing the effect of improving the wearing feeling by the actual function such as sweat attraction, the cotton fiber and the scent component derived from the plant give a favorable influence to the emotional surface, and the synergistic effect of both the functional aspect and the emotional surface is achieved. The effect can further improve the wearing feeling of the user.

According to a preferred embodiment, the top sheet has a folded portion folded back toward the non-skin surface side at the outer edge of the top sheet, and the non-skin surface of the folded portion is bonded with an adhesive. A portion is provided, and the joint portion is arranged inside the outer edge of the top sheet in the width direction. According to this aspect, the joint portion of the folded portion of the top sheet is located inside the outer edge of the top sheet in the width direction. for that reason. The outer edge of the folded portion (outer edge of the top sheet) tends to rise toward the skin surface side from the joint portion as a base point. By making it easier for the raised part to adhere to the inguinal region, sweat can be effectively absorbed, leading to an improved fit.

According to a preferred embodiment, there is an absorbent main body including the absorbent core, the top sheet and the back sheet, and a girth member arranged on the non-skin surface side of the absorbent main body and covering the girth of the wearer. The waistline member has a waistline skin side sheet that is in contact with the wearer's skin. The waistline skin side sheet is a laminated sheet in which an elastic sheet and a non-elastic sheet are bonded to each other via a large number of joints and laminated. According to this aspect, the waistline skin side sheet is formed with a concave portion formed by the sheet joint portion and a convex portion between the joint portions. The concave portion and the convex portion form a space between the body and the skin-side sheet around the waist, and sweat can be retained in the space. Therefore, not only the sweat can be drawn in by the top sheet of the absorbent body, but also the sweat can be drawn in by the waist member, and the wearing feeling can be improved over the waist and the entire inseam.

(2) Configuration of Absorbent Articles Hereinafter, the absorbent articles according to the first embodiment will be described with reference to the drawings. The absorbent article may be an absorbent article such as a sanitary napkin, panty liner, light incontinence liner, nursing pad, adult incontinence pad, fecal pad or sweat-absorbing sheet. In particular, the absorbent article may be an article attached and used inside a worn article such as a user's underwear. In the description of the drawings below, the same or similar parts are designated by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratio of each dimension may differ from the actual one. Therefore, the specific dimensions, etc. should be determined in consideration of the following explanation. In addition, there may be a portion where the relationship and ratio of the dimensions of the drawings are different from each other.

FIG. 1 is a plan view of the absorbent article 1 according to the first embodiment as viewed from the skin surface side. Here, the "skin surface side" corresponds to the side facing the wearer's skin during use. The "non-skin side" corresponds to the side that is turned away from the wearer's skin during use. FIG. 2 is a plan view of the absorbent article 1 according to the first embodiment as viewed from the non-skin surface side. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. 1, and FIG. 4 is a view showing an adhesive region of the top sheet.

The absorbent article 1 has an anteroposterior direction L and a width direction W. The anteroposterior direction L is a direction extending from the front side (ventral side) of the wearer to the rear side (dorsal side), or a direction extending from the rear side of the wearer to the front side. The width direction W is a direction orthogonal to the front-rear direction L. The absorbent article 1 has a thickness direction T extending in the skin surface side T1 and the non-skin surface side T2 of the wearer. The absorbent article 1 includes an anterior region R1, a posterior region R2, and a central region R3. The central region R3 is arranged so as to straddle the center of the absorbent article in the anterior-posterior direction, and includes an excretion opening contact portion facing the excretion opening (for example, the vaginal opening) of the wearer. When the absorbent article 1 is attached to the underwear, the central region R3 is a region located in the inseam of the underwear and arranged in the inseam of the wearer, that is, between the wearer's feet. The front region R1 is located on the front side of the central region R3. The front edge of the front region R1 defines the front edge of the absorbent article 1. The posterior region R2 is located posterior to the central region R3. The trailing edge of the posterior region R2 defines the trailing edge of the absorbent article 1.

A wing 3 may be provided in the central region R3. Further, the rear region R2 may be provided with a hip flap that bulges outward in the width direction W. The front end edge of the wing 3 is defined by the base of the wing 3, and corresponds to the portion located on the front side of the two portions recessed inward in the width direction W. The front edge of the wing 3 may define a boundary between the central region R3 and the front region R1. The trailing edge of the wing 3 is defined by the base of the wing 3, and corresponds to the portion located on the rear side of the two portions recessed inward in the width direction W. The trailing edge of the wing 3 may define a boundary between the central region R3 and the posterior region R2.

The absorbent article 1 is arranged on the absorption core 31 that absorbs the body fluid, the top sheet 10 that is arranged on the skin surface side T1 of the absorption core 31 and has water-absorbent fibers, and the non-skin surface side T2 of the absorption core 31. Includes a liquid-impermeable backsheet 20 that is arranged. The top sheet 10 is directed to the wearer's skin and the back sheet 20 is directed to the side opposite to the wearer's skin. The absorption core 31 is provided between the top sheet 10 and the back sheet 20.

The top sheet 10 may cover the central portion of the absorption core 31 in the width direction W. The top sheet 10 may extend in the front-rear direction L from the front region R1 to the rear region R2. The top sheet 10 may have a center sheet 11 and a second sheet 12 arranged outside the center sheet 11 in the width direction W. The second sheet 12 may be arranged on the non-skin surface side with respect to the center sheet 11. The top sheet 10 may be composed of only the center sheet 11.

The top sheet 10 has water-absorbent fibers. The water-absorbent fiber can be exemplified by a cotton fiber. The water-absorbent fiber may be provided on at least one of the center sheet 11 and the second sheet 12. Preferably, the center sheet 11 having a relatively large area in contact with the skin may have water-absorbent fibers. The fiber length of the cotton fiber may be 5 to 35 mm. The center sheet 11 can be exemplified by a cotton non-woven fabric. The basis weight of the cotton nonwoven fabric may be ^{30 g / m 2.} Further, the center sheet 11 may have a two-layer structure. More specifically, the upper layer 11A mainly containing cotton fibers (containing more than 50%), and the cotton fibers and heat-sealing fibers (hydrophobic fibers coated with a hydrophilic oil agent are hydrophilic fibers but are non-absorbent). It may be composed of a laminated sheet of a lower layer 11B mixed with the fibers of the above. That is, the upper layer 11A of the center sheet 11 constitutes the upper layer of the present invention, the lower layer 11B of the center sheet 11 has heat-sealing fibers, and the center sheet 11 of the present embodiment is a laminated layer of the upper layer and the lower layer. It is a sheet. The breaking elongation of the center sheet 11 may be such that the strength along the fiber orientation direction is 30 to 70 N / 25 mm, and the strength in the direction orthogonal to the fiber orientation direction is 5 to 10 N / 25 mm.

The second sheet 12 may contain heat-sealing fibers. The second sheet 12 has a non-folded portion 12A that is not folded back to the non-skin surface side T2, and a folded portion 12B that is folded back toward the non-skin surface side T2 at the outer edge 12E of the second sheet 12. The folded-back portion 12B of the second sheet 12 is joined to the extension sheet 13 described later at the joint portion 15. The joint portion 15 is bonded to a member that comes into contact with the non-skin surface of the top sheet 10 with an adhesive such as a hot melt type adhesive.

As shown in FIG. 4, the non-skin surface of the top sheet 10 is provided with an adhesive region RA coated with an adhesive. FIG. 4 is a diagram schematically showing the non-skin surface of the top sheet 10 of the B portion shown in FIG. 1. The adhesive region RA is an region that is adhered to a member (for example, a core wrap) that comes into contact with the non-skin surface of the top sheet 10. The adhesive region RA is a portion to which the adhesive is applied. The adhesive region RA extends in the width direction W and is provided at intervals in the front-rear direction L. It should be noted that at least a part of the adhesive region RA may be provided at intervals in the front-rear direction L, and the adhesive region RA may be a continuous portion in the front-rear direction. Further, the distance RAG between the bonded regions RA in the front-rear direction may be constant or irregular.

The back sheet 20 is a liquid impermeable sheet. As the back sheet 20, a polyethylene sheet, a laminated non-woven fabric mainly made of polypropylene or the like, a breathable resin film, a spunbond, or a sheet in which a breathable resin film is bonded to a non-woven fabric such as spunlace can be used. The non-skin surface of the back sheet 20 may be provided with an adhesive portion 70 for joining the absorbent article 1 to the worn article (underwear or the like). The adhesive portion 70 may be a portion to which an adhesive such as a hot melt type adhesive is attached, or a portion to which an engaging member such as a mechanical fastener is provided. The outer edge of the adhesive portion 70 in the front-rear direction constitutes a bending base point portion described later. The adhesive portion 70 extends in the width direction W and may be arranged at intervals in the front-rear direction L. In the form in which a plurality of adhesive portions are arranged at intervals in the front-rear direction L, the outer edge of each adhesive portion 70 in the front-rear direction constitutes a bending base point portion. Further, the distance 70G between the adhesive portions 70 in the front-rear direction may be constant or irregular.

The absorption core 31 is arranged at least in the central region R3 and the posterior region R2. Further, the absorption core 31 may extend from the central region R3 to the front region R1. The absorption core 31 contains an absorbent material that absorbs a liquid. The absorption core 31 may be wrapped by a core wrap. The absorbent material constituting the absorbent core 31 can be formed from, for example, pulp and a super absorbent polymer (SAP). The absorption core 31 may be formed with a high basis weight portion 26 having a higher basis weight of the absorption material than the surroundings and a low basis weight portion (including a slit) 25 having a lower basis weight of the absorption material than the surroundings. .. The core wrap can be made of, for example, a non-woven fabric or a tissue sheet.

In the core arrangement region R31 in which the absorption core 31 is arranged, a plurality of bending base point portions 80 serving as a base point for bending the absorbent article 1 may be provided. The core arrangement region R31 is an region in which the absorption core 31 is arranged in a plan view. The bent base point portion 80 serves as a base point when the absorption core 31 is bent in the front-rear direction L. The bent base point portion 80 makes it easy to bend the absorbent article 1 due to a difference in rigidity, a difference in thickness, a difference in basis weight, and the like. The bent base point portion 80 may be arranged at least in the core arrangement area R31, and straddles the core arrangement area R31 and the area other than the core arrangement area R31 (the area outside the core arrangement area R31). May be good.

The bent base point portion 80 may include at least a core pressing portion 61 (see FIG. 3) in which the absorption core 31 is compressed in the thickness direction T. More specifically, the front end edge and the rear end edge of the core pressing portion 61 constitute the bending base point portion 80. Further, in a configuration in which a plurality of squeezed portions are arranged so as to be offset in the front-rear direction, the front end edge and the rear end edge of each squeezed portion constitute the bent base point portion 80. The core squeezed portion 61 has higher rigidity and is thinner than the region in which the core squeezed portion 61 is not formed. In the form in which the core pressing portion 61 constitutes the bent base point portion 80, the absorbent article 1 is easily deformed due to the difference in thickness and the difference in rigidity. Preferably, the core pressing portion 61 may be recessed from the skin surface side T1 toward the non-skin surface side T2. Since the core pressing portion 61 is recessed from the skin surface side T1 toward the non-skin surface side T2, it is easily deformed so that the skin surface side T1 approaches, and the absorbent article 1 easily follows the wearer's body. The core pressing portion 61 may be provided integrally with the sheet pressing portion 60 formed on the top sheet 10 described later. Further, the core pressing unit 61 may form a transition promoting unit, which will be described later.

The folding base point portion 80 may include a basis weight changing portion. The basis weight change portion is a portion where the basis weight of the absorption material of the absorption core 31 is different from the adjacent region in the front-rear direction L. Specifically, the front end edge and the rear end edge of the absorption core 31 form a basis weight changing portion. The front end edge and the rear end edge of the high basis weight portion 26 also constitute the basis weight changing portion. The low basis weight portion 25 differs depending on the length in the front-rear direction. When the length of the low basis weight portion 25 in the front-rear direction is less than 20 mm, the center of the low basis weight portion in the front-rear direction constitutes the basis weight change portion. When the length of the low basis weight portion in the front-rear direction is 20 mm or more, the front end edge and the rear end edge of the low basis weight portion form the basis weight change portion. Further, when a plurality of low basis weight portions are provided apart from each other in the front-rear direction and the plurality of low basis weight portions are connected, each of the low basis weight portions separated in the front-rear direction forms a basis weight change portion. Constitute. In the basis weight changing portion configured in this way, the area adjacent to each other in the front-rear direction and the basis weight of the absorbing material are different, and the thickness and rigidity of the absorbing core 31 are different. Since the basis weight changing portion constitutes the bent base point portion 80, the absorbent article 1 is easily deformed due to the difference in thickness and the difference in rigidity. Preferably, the basis weight changing portion may be provided along the width direction W.

The bent base point 80 may include a core opening 32 (see FIG. 3) formed in the absorption core 31. The core opening 32 may penetrate at least the absorption core 31 in the thickness direction T. The core openings 32 of the present embodiment are point-shaped, and may be formed in plurality at intervals in the front-rear direction L and the width direction W. The core opening 32 may form a transition promoting portion, which will be described later.

The folding base point 80 may include folds FL1 and FL2 that are folded so that the skin-facing surfaces of the absorbent article 1 face each other. In the configuration in which the crease has a constant length in the front-rear direction L, the front end edge and the rear end edge of the creases FL1 and FL2 form the bending base point portion 80. The creases FL1 and FLS2 tend to be deformed so that the skin surface side T1 approaches, and the absorbent article 1 easily follows the wearer's body.

The bent base point portion 80 may include an adhesive portion 70. More specifically, the front and rear edges of the adhesive portion 70 constitute the bent base point portion 80. The adhesive portion 70 is joined to the worn article, and the area where the adhesive portion is not provided rises with respect to the worn article. The front end edge and the rear end edge of the adhesive portion 70 are boundaries having different bonding states with respect to the worn article, and form the bent base point portion 80. That is, the bent base point portion 80 may be composed of at least one of a core opening portion 32, a core pressing portion 61, an adhesive portion 70, a low basis weight portion 25, a high basis weight portion 26, and creases FL1 and FL2. By providing the bent base point 80 in this way, the absorbent article 1 easily follows the roundness of the body extending in the front-rear direction of the wearer, the absorbent article adheres to the skin, and the body fluid is more easily absorbed. Become.

The distance G80 between the bending base points 80 may be the distance between the bending base points 80 adjacent to each other in the front-rear direction L in the front-rear direction. In the case where a plurality of bending base point portions 80 are provided at intervals in the front-rear direction, each of them functions as a folding base point portion 80. However, when the distance between the bending base points 80 in the front-rear direction is 5 mm or less, the entire bending base points 80 provided at intervals of 5 mm or less function as an integrated deformation base point. It constitutes the bending base point of. Further, in a configuration in which a plurality of bending base points having the same shape are provided on the same line along the width direction W, only one of the bending base points on the same line is selected, and the bending base points are selected in the front-rear direction. Measure the interval.

As mentioned above, the absorbent article 1 has a wing 3. The wing 3 extends outward in the width direction W from the outer edge of the absorption core 31 in the central region R3. The wing 3 may be configured by laminating the extension sheet 13 and the back sheet 20. The extension sheet 13 may be arranged on the non-skin surface side of the second sheet 12 and may extend outward in the width direction from the second sheet 12. The wing 3 is configured to be foldable toward the back sheet 20 side. The wing 3 is folded back to the non-skin surface side of the crotch portion of the underwear at the time of use.

As shown in FIG. 1, the absorbent article 1 may have at least a sheet pressing portion 60 in which the top sheet 10 is compressed in the thickness direction. In the sheet pressing portion 60, at least the top sheet 10 may be compressed, the top sheet 10 and the absorption core 31 may be compressed, and other sheets (for example, core wrap) may also be compressed. .. As shown in FIG. 3, the sheet pressing portion 60 of the present embodiment is formed together with the core pressing portion 61 and overlaps with the core pressing portion 61. Further, the absorbent article 1 may have at least a sheet opening 65 formed in the top sheet 10. The sheet opening 65 may penetrate the top sheet 10 in the thickness direction T. The sheet opening 65 may be formed on another member (for example, a core wrap, an absorption core) together with the top sheet 10 as long as it is formed on at least the top sheet 10. The sheet pressing portion 60 and the sheet opening 65 may constitute the transition promoting portion of the present invention. The migration promotion unit promotes the transfer of sweat from the top sheet 10 to the absorption core 31. As shown in FIG. 3, the sheet opening 65 of the present embodiment is formed together with the core opening 32 and overlaps with the core opening 32.

The absorbent article 1 of the present embodiment is configured to improve the wearing feeling even when it is continuously used for a long time. More specifically, the absorbent article 1 is configured to improve the ability to draw in sweat. Next, a configuration for improving sweat attraction will be described in detail. The sweat attraction of the absorbent article can be evaluated by the sweat transfer value. The sweat transfer value is a value that indicates the amount of sweat transferred from the skin-facing surface of the top sheet 10 to the inside of the absorbent article, and is absorbed after 120 seconds with respect to the weight of the sweat on the skin-facing surface of the top sheet 10. It is the ratio of the weight of sweat transferred to the sex article. It can be evaluated that the higher the sweat transfer value, the higher the sweat attraction of the absorbent article, and the lower the sweat transfer value, the lower the sweat attraction of the absorbent article. The sweat attraction can also be evaluated by the ratio of the weight of the sweat that has returned to the skin surface side of the top sheet 10 to the weight of the sweat that has transferred to the absorbent article in the measurement of the sweat transfer value, that is, the rewet rate. The lower the rewet rate, the more difficult it is for the sweat once drawn in to return to the wearer, and the higher the drawability of the sweat of the absorbent article. It can be evaluated that the sweat attraction is low.

The sweat transfer value can be measured by the following method. (1) A 40 g / m ² air-laid non-woven fabric is cut into a sheet piece having a size of 30 mm × 50 mm. As the air-laid non-woven fabric, KS-40 manufactured by Oji Kinocross Co., Ltd. was used. (2) A laminated body in which five cut air-laid nonwoven fabrics are stacked is prepared, and 1 ml of simulated sweat is absorbed by the laminated body. Simulated sweat is 10 L of ion-exchanged water, 80 g of sodium chloride (purity 99.0% or more), 8 g of magnesium sulfate / heptahydrate (DDL4 / 7H2O), 3 g of calcium chloride / dihydrate (CaCl2 / 2H2O), dye: It was prepared by dissolving 1 g of Blue No. 1. (3) The weight of the absorbent article to be measured for the sweat transfer value is measured. (4) The laminated body is placed on the top sheet 10 of the absorbent article to be measured, and a weight of 525 g is placed on the laminated body. (5) After 120 seconds have passed since the weight was placed, the laminate is removed and the weight of the absorbent article is measured. The difference in weight is taken as the first sweat transfer value. (6) Next, a new laminated body is prepared, and 1 ml of pseudo sweat is absorbed by the laminated body. (7) The laminated body is placed on the top sheet 10 of the absorbent article to be measured, and a weight of 525 g is placed on the laminated body. (8) After 120 seconds have passed since the weight was placed, the laminate is removed and the weight of the absorbent article is measured. The difference in weight between the second test and the first test is taken as the second sweat transfer value.

The rewet rate can be measured by the following method. For the first rewet rate, simulated sweat similar to the sweat transfer value was used, and after performing steps (1) to (5) of the above method for measuring the sweat transfer value, filter paper (filter paper No. 2 manufactured by Advantech). Stack 10 sheets on the top sheet 10 and put a weight of 525 g on it. After 60 seconds, the absorbent article is weighed. The difference between the weight measured in (5) and the weight after the rewet test is taken as the first rewet value. Table 1 shows the measurement results of the sweat transfer value and the rewet rate of the absorbent articles according to Examples 1 to 3 and the absorbent articles according to Comparative Examples 1 to 3. In addition, using the absorbent articles according to Examples 1 to 3 and the absorbent articles according to Comparative Examples 1 to 3, 10 testers were subjected to a sensitivity evaluation regarding the wearing feeling. .. In the sensitivity evaluation, the wearing feeling of having the user wear the absorbent article during the non-menstrual period or the period when the menstrual blood volume in the latter half of the menstrual period is small was evaluated. If you feel stickiness, stickiness, or stuffiness due to sweat, you should consider it as "bad". If you do not feel stickiness, stickiness, or stuffiness due to sweat, you should consider it as "good" and 8 or more people should judge it as "good". The case of "◎" was given, the case of 6 or more and 8 or less people judged as "good" was given as "○", and the case of 5 or less people judged as "good" was given as "x".

In the absorbent article according to one embodiment, the second sweat transfer value when the sweat transfer value is measured twice in succession is higher than the first sweat transfer value. The force for drawing in the sweat discharged on the top sheet 10 is higher in the second time than in the first time, and the sweat can be taken in continuously. By migrating and absorbing water to the absorber, the surface diffusion of water is suppressed and the area of contact between the body and water is reduced, so that it is possible to suppress cooling of the body. Further, in addition to the improvement of the touch by using the water-absorbent fiber such as the cotton fiber for the top sheet 10, the sticky feeling due to the continuous drawing of sweat can be suppressed, and the wearing feeling can be further improved.

In the absorbent article according to the embodiment, the first sweat transfer value may be 0.43 or more. Since the first sweat transfer value is 0.43 or more and the sweat drawing property is high, the sticky feeling due to the sweat drawing can be suppressed, and the wearing feeling can be further improved. In addition, since the first sweat transfer value is 0.52 or more, those who exceed 80% in the sensory evaluation preferably feel it. The fact that more than 80% of people can feel good is a level at which even users with low interest in the product can feel the goodness when using it. Therefore, preferably, the first sweat transfer value may be 0.52 or more. In the absorbent article according to the embodiment, the rewet rate, which is the ratio of the weight of the sweat returned to the skin surface side of the top sheet 10 to the weight of the sweat transferred to the absorbent article in the first measurement of the sweat transfer value, is , 0.22 or less. It is possible to suppress the return of sweat once drawn. By suppressing rewetting, the wearing feeling can be further improved. In addition, since the rewet rate is 0.12 or less, more than 80% of people in the sensory evaluation feel that it is suitable. Therefore, preferably, the rewet rate may be 0.12 or less.

Further, in the absorbent article of another aspect, the first sweat transfer value is 0.43 or more, and the first rewet rate is 0.22 or less. Since the first sweat transfer value is 0.43 or more and the sweat drawing property is high, the sticky feeling due to the sweat drawing can be suppressed, and the wearing feeling can be further improved. In addition, it is possible to suppress the return of sweat once drawn. By suppressing rewetting, the wearing feeling can be further improved.

The second sweat transfer value may be 0.49 or more. The second sweat transfer value is 0.49 or more, the second sweat transfer amount is larger, and about half of the sweat on the skin facing surface of the top sheet 10 can be drawn in. The sticky feeling caused by drawing in sweat can be suppressed, and the wearing feeling can be further improved. In addition, since the first sweat transfer value is 0.66 or more, more than 80% of the people in the sensory evaluation feel that it is suitable. Therefore, preferably, the second sweat transfer value may be 0.66 or more.

The absorbent article is configured to fit easily along the body when worn. Since the absorbent article follows the body when worn, it is easier to absorb sweat, which is a body fluid. More specifically, the bent base point portion 80 is provided in the core arrangement region R31 in which the absorption core 31 is arranged. The widest distance between the bent base points 80 may be 20 mm or less. In the core arrangement region R31, the absorption core 31 having a relatively high rigidity in the absorbent article 1 is arranged, and there is a possibility that it is difficult to follow the body. However, since the bent base point portion 80 is provided, it is easily deformed via the bent base point portion 80. The widest interval among the intervals of the bending base points 80 is 20 mm or less. That is, the intervals between the bending base points 80 are all 20 mm or less. Since the bending base points 80 are arranged at relatively short intervals, it is easy for the absorbent article 1 to follow the body in a cross section along the front-rear direction L. By arranging the absorbent article 1 along the body, it is easy to bring the top sheet 10 into contact with the body over the entire absorbent article. A large area for drawing in sweat can be provided, and the wearing feeling can be further improved. The distance between the bent base points 80 may be the distance between the bent base points 80, such as the distance between the core pressing portion 61 and the core opening 32. The spacing between the bent base points 80 is not constant and may be irregular. The layer roundness in the anterior-posterior direction of the body is not a constant curvature, but is facilitated by the roundness of the body due to the bent base points 80 arranged at irregular intervals.

The average spacing RAG between the adhesive regions RA on the non-skin surface of the top sheet 10 may be equal to or less than the widest spacing among the spacing of the bending base points 80. In the adhesive region RA, since the top sheet 10 is adhered to the member located on the non-skin surface side, the top sheet 10 is suppressed from floating and is easily arranged along the body together with the absorption core 31. Since the average spacing RAG of the adhesive region RA is equal to or less than the widest spacing among the bending base points 80, the top sheet 10 is absorbed along the body together with the absorbing core 31 within the widest spacing between the folding base points 80. The top sheet 10 can be easily brought into contact with the body over the entire absorbent article 1. A large area for drawing in sweat can be provided, and the wearing feeling can be further improved.

The average distance 70G between the adhesive portions 70 may be equal to or less than the widest distance among the intervals of the bending base point portions 80. Since the adhesive portion 70 itself constitutes the bent base point portion 80, the average interval 70G between the adhesive portions 70 may be equal to or less than the widest interval among the intervals of the bent base point portions 80 other than the adhesive portion 70. .. In the adhesive portion 70, since the absorbent article is adhered to the worn article, the absorbent article is easily arranged along the body. Since the average distance 70G between the adhesive portions 70 is equal to or less than the widest distance between the bending base points, the top sheet can be placed along the body within the widest distance between the bending base points 80. It is possible to easily bring the top sheet into contact with the body over the entire absorbent article. A large area for drawing in sweat can be provided, and the wearing feeling can be further improved.

The non-skin surface joint portion 15 of the second sheet 12 as the top sheet 10 may be arranged inside the outer edge 12E of the second sheet 12 which is the top sheet 10 in the width direction. The joint portion 15 of the folded portion 12B of the top sheet 10 is located inside the outer edge of the top sheet 10 in the width direction. Therefore, the outer edge of the folded portion (outer edge of the top sheet) tends to rise toward the skin surface side with the joint portion 15 as a base point. Since the raised part easily adheres to the inguinal region, sweat can be effectively absorbed and the wearing feeling can be further improved.

The length of the second sheet 12 in the width direction W may be longer than the length of the center sheet 11 in the width direction W. The sweat-absorbing property of the second sheet 12 may be higher than the sweat-absorbing property of the center sheet 11. Both the second sheet 12 and the center sheet 11 may be water-absorbent. The position of the sanitary napkin as an absorbent article toward the center in the width direction W continues to be in close contact with the body. On the other hand, the position of the sanitary napkin from the outside in the width direction W repeatedly touches and separates from the skin according to the movement of the foot. By narrowing the width of the center sheet 11 on the skin side and widening the width of the second sheet, which has relatively low sweat absorption, it is possible to make it difficult for the wearer to feel the stickiness of sweat when the movement occurs.

The absorbent article 1 is configured to easily draw in sweat. More specifically, a transfer promoting unit may be provided to promote the transfer of sweat from the top sheet 10 to the absorption core 31. The transition promoting portion may be composed of at least one of the seat pressing portion 60 and the seat opening 65. The transition promotion unit can promote the transfer of sweat from the top sheet 10 to the absorption core, suppress the sticky feeling caused by drawing in sweat, and further improve the wearing feeling. Further, in another form, the transition promoting portion may be configured by either the core pressing portion 61 or the core opening 32.

The center sheet 11 which is the top sheet 10 is mainly composed of water-absorbent fibers such as cotton fibers and rayon fibers (hydrophobic fibers coated with a hydrophilic oil agent to be hydrophilic fibers but excluding non-water-absorbent fibers). ing. The term "main" as used herein means that the fiber ratio of the water-absorbent fiber to the fiber of the top sheet is 50% or more. According to the top sheet, the transferability of sweat from the skin to the top sheet and the feeling of wearing can be improved in a well-balanced manner. More preferably, the topsheet may be composed substantially exclusively of water-absorbent fibers. A topsheet composed substantially only of water-absorbent fibers may contain thermoplastic resin fibers or fibers serving as a binder in a fiber ratio of less than 10%. According to the top sheet, the transferability of sweat from the skin to the top sheet and the feeling of wearing can be further improved.

Further, the top sheet 11 is a laminated sheet of an upper layer 11A mainly containing cotton fibers and a lower layer 11B mainly containing heat-sealing fibers and located on the non-skin surface side T2 of the upper layer 11A. good. According to the top sheet, the transferability of sweat from the skin to the top sheet, the pulling property of the sweat transferred to the surface of the top sheet to the non-skin surface side in the top sheet, the sense of security to the skin, and the feel of the skin. Can be improved. More preferably, it may be a laminated sheet of an upper layer 11A made of 100% cotton fibers and a lower layer 11B having heat-sealing fibers and located on the non-skin surface side of the upper layer. According to the top sheet, the transferability of sweat from the skin to the top sheet, the pulling property of the sweat transferred to the surface of the top sheet to the non-skin surface side in the top sheet, the sense of security to the skin, and the feel of the skin. Can be improved further. The absorbent article having a top sheet having an upper layer and a lower layer may be provided with a sheet pressing portion 60 as a transition promoting portion. The lower layer has heat-sealing fibers, and when the pressed portion is formed, the fibers are fused to each other, and it is easy to maintain the shape. Therefore, the upper layer having the cotton fiber gives the impression that the skin feels better, the skin feels safe and the skin feels good, and the transition promoting part can improve the pulling property of the body fluid.

The absorbent article may have other configurations that improve the fit, in addition to the sweat drawability and touch. More specifically, the water-absorbent fiber is a cotton fiber, and the absorbent article may have a plant-derived scent component or a plant-reminiscent scent component. The wearer can feel the effect of the tactile sensation such as the softness of the cotton fiber, and can obtain the feeling of security that is gentle on the skin due to the scent component derived from the plant. In addition, when experiencing the effect of improving the wearing feeling by the actual function such as sweat attraction, the cotton fiber and the scent component derived from the plant give a favorable influence to the emotional surface, and the synergistic effect of both the functional aspect and the emotional surface is achieved. The effect can further improve the wearing feeling of the user.

The back sheet 20 may be composed of a breathable sheet. That is, the absorbent article 1 has not only the breathability on the skin surface side but also the breathability on the non-skin surface side. By ensuring the air permeability on the non-skin surface side of the absorbent article, the stuffiness of the absorbent article can be suppressed and the wearing feeling can be improved. The absorption core 31 may have a highly absorbent polymer as an absorbent material, and more preferably, it may be a highly absorbent sheet in which the highly absorbent polymer is sandwiched between sheets. Moisture can be absorbed in the absorption core 31, stuffiness of the absorbent article can be suppressed, and the wearing feeling can be improved.

The absorbent article 1 may be individually wrapped by an individual wrapping sheet before use. Since it is packaged by an individual wrapping sheet, it is difficult for the absorbent article to absorb moisture before use, and hygroscopicity at the time of use can be ensured. Preferably, the individual wrapping sheet may be a film.

Next, the absorbent article 1X according to the second embodiment will be described with reference to FIG. The absorbent article 1X according to the second embodiment is a shorts-type sanitary napkin previously formed in a pants-type. The absorbent article according to the second embodiment is not limited to the shorts type napkin, and the absorbent article according to the present invention may be a disposable diaper. FIG. 5 is a front view of a pants-type absorbent article. In the following description of the second embodiment, the same components as those in the above-described embodiment will be described with reference to the same reference numerals.

The absorbent article 1X has a front torso circumference area S1, a rear torso circumference area S2, and an inseam area S3. The front torso circumference area S1 faces the front side of the wearer's body at the time of use. The rear torso circumference area S2 faces the rear side of the wearer's body at the time of use. The inseam area S3 is located between the front torso area S1 and the rear torso area S2, and is arranged in the inseam of the wearer at the time of use. The inseam fold line FW1 that divides the absorbent article 1X back and forth passes through the inseam region S3. The inseam fold line FW1 extends along the width direction W. The absorbent article 1X is folded so that the front torso peripheral area S1 and the rear torso peripheral area S2 overlap each other with the inseam folding line FW1 as a base point. Further, a side joint portion 59 is formed in which the outer portion of the front torso circumference region S1 in the width direction W and the outer portion of the rear torso circumference region S2 in the width direction W are joined to each other. The absorbent article 1X is formed with a waist circumference opening 5 into which the wearer's waist circumference is inserted, and a pair of leg circumference openings 6 into which the wearer's legs are inserted.

The absorbent article 1X includes an absorbent main body 58 and a waist circumference member 50. The absorbent body 58 is provided at least in the inseam region S3. The absorbent body 58 includes at least a liquid-permeable top sheet 10, a liquid-impermeable back sheet 20, and an absorbing core 31 arranged between the top sheet 10 and the back sheet 20. The waistline member 50 is arranged on the non-skin surface side T2 of the absorbent main body 58, and has a waistline skin side sheet 51 in contact with the wearer's skin. The waistline skin side sheet 51 is a laminated sheet in which an elastic sheet 52 and a non-elastic sheet 53 are bonded to each other via a large number of sheet joints 54 and laminated.

FIG. 6 is a schematic cross-sectional view of the laminated sheet. In the laminated sheet, the elastic sheet 52 and the inelastic sheet 53 are bonded to each other via a large number of sheet joints 54 and laminated. The sheet joint portion 54 can be formed, for example, by welding fibers with an ultrasonic device. The elastic sheet 52 includes elastic fibers, and in this embodiment, the elastic sheet 52 is formed of elastic fibers and non-elastic fibers, and is elastically stretchable in the width direction W. That is, the elastic sheet 52 is stretched 100% in the width direction W, and the residual strain when released from the stretched state is 30% or less, preferably 20% or less.

The elastic fiber can be formed only by the thermoplastic elastomer, or can be formed by mixing the thermoplastic elastomer with another resin. The inelastic fiber preferably contains a thermoplastic resin. As the non-woven fabric 53, for example, a non-woven fabric made by various manufacturing methods such as an air-through fiber non-woven fabric, a point bond fiber non-woven fabric (heat roll fiber non-woven fabric), a spunlace fiber non-woven fabric, a spunbond fiber non-woven fabric, and a melt blown fiber non-woven fabric can be used. Further, in addition to the fibrous nonwoven fabric, woven fabric, knitted fabric, resin film and the like can also be used.

Referring to FIG. 6, the elastic sheet 52 has a large number of concave portions 56 that overlap the sheet joint portion 54 and extend in the width direction W, and a large number of convex portions that are adjacent to the concave portions 56 and extend in the width direction W. 55 is formed. The inside of the ridge portion 55 is a ridge filled with fibers constituting the elastic sheet 52. However, it is not necessary that all of the ridges 55 are filled with fibers, and it is sufficient that the ridges 55 are present to such an extent that the bulk of the sheet described later can be maintained. The fibers in the ridges 55 are bent or crimped (not shown), and the fibers are stretched so that the entire elastic sheet 52 can be stretched in the front-rear direction L and the width direction W. In particular, in the width direction W, it can be elastically expanded and contracted. A space is formed between the body and the waist skin side sheet 51 by the convex portion 55 and the concave portion 56 of the waist circumference skin side sheet 51, and sweat can be retained in the space. Therefore, not only the sweat drawability by the top sheet 10 of the absorbent body but also the sweat can be drawn by the waist circumference member, and the wearing feeling can be improved over the waist circumference and the entire inseam.

Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and modifications without departing from the spirit and scope of the present invention as determined by the description of the scope of claims. Therefore, the description of the present specification is for the purpose of exemplary explanation and does not have any limiting meaning to the present invention.

1, 1X: Absorbent article 10: Top sheet 11: Center sheet 11A: Upper layer 11B: Lower layer 12: Second sheet 12B: Folded part 12E: Outer edge 15: Joint part 20: Back sheet 23: Absorption core 25: Low basis weight Part (bending base point part)
31: Absorption core 50: Girth member 51: Girth skin side sheet 52: Elastic sheet 53: Non-elastic sheet 54: Sheet joint 58: Absorbent body 60: Sheet compression part (transition promotion part)
61: Core squeezing part (bending base point part)
65: Seat opening (transition promotion part)
70: Adhesive part (bent base point part)
80: Folding base point FL1, FL2: Fold (folding base point)
L: Front-back direction R31: Core arrangement area RA: Adhesive area T: Thickness direction T1: Skin surface side T2: Non-skin surface side W: Width direction

Further, the top sheet 10 is a laminated sheet of an upper layer 11A mainly containing cotton fibers and a lower layer 11B mainly containing heat-sealing fibers and located on the non-skin surface side T2 of the upper layer 11A. good. According to the top sheet, the transferability of sweat from the skin to the top sheet, the pulling property of the sweat transferred to the surface of the top sheet to the non-skin surface side in the top sheet, the sense of security to the skin, and the feel of the skin. Can be improved. More preferably, it may be a laminated sheet of an upper layer 11A made of 100% cotton fibers and a lower layer 11B having heat-sealing fibers and located on the non-skin surface side of the upper layer. According to the top sheet, the transferability of sweat from the skin to the top sheet, the pulling property of the sweat transferred to the surface of the top sheet to the non-skin surface side in the top sheet, the sense of security to the skin, and the feel of the skin. Can be improved further. The absorbent article having a top sheet having an upper layer and a lower layer may be provided with a sheet pressing portion 60 as a transition promoting portion. The lower layer has heat-sealing fibers, and when the pressed portion is formed, the fibers are fused to each other, and it is easy to maintain the shape. Therefore, the upper layer having the cotton fiber gives an impression that the skin feels better, and the skin feels safe and feels good, and the migration promoting part can improve the pulling property of the body fluid.

Claims (13)

An absorption core that absorbs body fluids and
A top sheet arranged on the skin surface side of the absorbent core and having water-absorbent fibers,
An absorbent article that is arranged on the non-skin surface side of the absorbent core and includes a liquid-impermeable backsheet.
The sweat transfer value, which is an index of the amount of sweat transferred from the skin-facing surface of the top sheet to the inside of the absorbent article, is the absorbent article after 120 seconds with respect to the weight of sweat on the skin-facing surface of the top sheet. When defined as the ratio of the weight of sweat transferred to
An absorbent article in which the second sweat transfer value when the sweat transfer value is measured twice in succession is higher than the first sweat transfer value. The absorbent article according to claim 1, wherein the first sweat transfer value is 0.43 or more. The ratio of the weight of the sweat that has returned to the skin surface side of the top sheet to the weight of the sweat that has transferred to the absorbent article in the first measurement of the sweat transfer value is 0.22 or less, claim 1 or The absorbent article according to claim 2. An absorption core that absorbs body fluids and
A top sheet arranged on the skin surface side of the absorbent core and having water-absorbent fibers,
An absorbent article that is arranged on the non-skin surface side of the absorbent core and includes a liquid-impermeable backsheet.
The sweat transfer value, which is an index of the amount of sweat transferred from the skin-facing surface of the top sheet to the inside of the absorbent article, is the absorbent article after 120 seconds with respect to the weight of sweat on the skin-facing surface of the top sheet. When defined as the ratio of the weight of sweat transferred to
The first sweat transfer value is 0.43 or more,
The ratio of the weight of the sweat that has returned to the skin surface side of the top sheet to the weight of the sweat that has transferred to the absorbent article in the first measurement of the sweat transfer value is 0.22 or less. The absorbent article according to any one of claims 1 to 4, wherein the second sweat transfer value when the sweat transfer value is measured twice in succession is 0.49 or more. In the core arrangement region where the absorption core is arranged, a plurality of bending base point portions serving as a base point for bending the absorbent article are provided.
The plurality of bending base points are provided at intervals in the front-rear direction.
The absorbent article according to any one of claims 1 to 5, wherein the widest distance between the bent base points is 20 mm or less. An adhesive region coated with an adhesive is provided on the non-skin surface of the top sheet.
The adhesive regions are provided at intervals in the front-rear direction.
The absorbent article according to claim 6, wherein the average spacing between the bonded regions is equal to or less than the widest spacing among the spacing of the bent base points. An adhesive portion for joining the absorbent article to the worn article is provided on the non-skin surface of the absorbent article.
The adhesive portions are provided at intervals in the front-rear direction.
The absorbent article according to claim 6 or 7, wherein the average distance between the bonded regions is equal to or less than the widest distance among the intervals of the bent base points. The absorbent article is provided with a migration promoting portion that promotes the migration of sweat from the top sheet to the absorbent core.
Claims 1 to 8 include the transition promoting portion, which is composed of at least one of a sheet pressing portion obtained by compressing the top sheet in the thickness direction and a sheet opening formed in the top sheet. The absorbent article according to any one of the above. The sheet squeezing portion is provided as the transition promoting portion, and the sheet squeezing portion is provided.
The ninth aspect of the present invention, wherein the top sheet is a laminated sheet consisting of an upper layer mainly containing cotton fibers and a lower layer mainly containing heat-sealing fibers and located on the non-skin surface side of the upper layer. Absorbent article. The water-absorbent fiber is a cotton fiber and is
The absorbent article according to any one of claims 1 to 10, wherein the absorbent article has a plant-derived scent component or a plant-reminiscent scent component. The top sheet has a folded portion folded back toward the non-skin surface side at the outer edge of the top sheet.
A joint to which an adhesive is attached is provided on the non-skin surface of the folded portion.
The absorbent article according to any one of claims 1 to 11, wherein the joint portion is arranged inside the outer edge of the top sheet in the width direction. An absorbent body including the absorbent core, the topsheet and the backsheet,
It has a waistline member which is arranged on the non-skin surface side of the absorbent body and covers the waistline of the wearer.
The waistline member has a waistline skin side sheet that is in contact with the wearer's skin.
The waistline skin side sheet is a laminated sheet in which an elastic sheet and a non-elastic sheet are bonded to each other via a large number of sheet joints and laminated, according to any one of claims 1 to 12. Absorbent article.

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