Abstract: An absorbent article 1 includes a three-dimensionally shaped topsheet 2 having projections 24 and recesses and a backsheet 3. Opposed end flaps 1E in longitudinal end portions are formed of at least the topsheet 2 and the backsheet 3. In at least one of the longitudinal end portions, a plurality of the projections 24 of the topsheet 2 protrude outward in the longitudinal direction X beyond the end edge el of the backsheet.

Abstract: Provided is a disposable diaper (1) which includes an absorbent member (4) and a topsheet (2). The topsheet (2) includes a first sheet (20) and a second sheet (21). Both sheets (20) and (21) are partially joined to form a plurality of joined regions (22), and the first sheet (20) has a plurality of projections (23) which protrude from the second sheet (21) toward the wearer's skin side at a portion other than the joined regions (22). The projections (23) include first projections (23A) and second projections (23B) and, when the topsheet (2) is viewed in a plan view, a second projection region (23R) is formed which includes the second projections (23B) surrounded by the plurality of first projections (23A). When the topsheet (2) is viewed in a plan view, the joined regions (22) include an inner joined region (22A1) in the second projection region (23R).

Abstract: An absorbent article includes a topsheet comprising a composite sheet. In the composite sheet, projections that protrude toward the skin of the wearer are formed by a first sheet protruding in a direction away from a second sheet at portions other than bonding portions. A plurality of first oblique bonding portion rows and a plurality of second oblique bonding portion rows are formed, and a long bonding portion elongated in a longitudinal direction is formed at each intersection of the first oblique bonding portion rows and the second oblique bonding portion rows. Laterally long projections elongated in a width direction are formed in a dispersed manner in the longitudinal direction and the width direction. Each laterally long projection is surrounded by two first oblique bonding portion rows and two second oblique bonding portion rows, and the long bonding portion is formed between adjacent laterally long projections in the width direction.

Abstract: An absorbent article of the present invention includes an absorbent core (4) and a topsheet (2) disposed on a skin-facing surface of the absorbent core (4) and having a projecting-and-depressed structure on the skin-facing surface. The absorbent core (4) includes one or a plurality of low-basis-weight portions (41) extending in one direction and having a relatively lower basis weight than other parts of the absorbent core (4). In a plan view, the topsheet (2) includes a plurality of types of projections (24) having different sizes in an overlapping region with the low-basis-weight portions (41).

Abstract: Disclosed is an absorbent article having, on its skin contact side, a sheet 2 having a region where, when rubbed under the conditions below, a friction coefficient or a mean deviation of the friction coefficient decreases by 5% or more or 15% or more, respectively, compared to before the rubbing. The absorbent article has a longitudinal direction X corresponding to the front-to-back direction of a wearer and a lateral direction Y. Conditions: A wet collagen film is reciprocated 10 times on the sheet in the longitudinal direction of the sheet under a load of 3.0 kPa; and the wet collagen film has a water content of 100 to 150 mass % relative to the dry weight thereof and is prepared by immersing a collagen film (EDCOL-R, available from PRIRO) cut out into a square of 10 cm in ion-exchanged water for 1 minute, taking out the collagen film, and removing excess water.

Abstract: An absorbent article 1 includes a three-dimensionally shaped topsheet 2 having projections 24 and recesses and a backsheet 3. Opposed end flaps 1E in longitudinal end portions are formed of at least the topsheet 2 and the backsheet 3. In at least one of the longitudinal end portions, a plurality of the projections 24 of the topsheet 2 protrude outward in the longitudinal direction X beyond the end edge el of the backsheet.

Abstract: Disclosed is an absorbent article including a projecting-and-depressed sheet (10) as a constituent member, the absorbent article having a longitudinal direction and a width direction orthogonal to the longitudinal direction. The projecting-and-depressed sheet (10) has a plurality of depressions (3) and projections (4) on a skin-facing surface to be brought into contact with the wearer's skin. In a given direction, a movable range of an apex (40a) of the projection (4) of the projecting-and-depressed sheet (10) is 30% or greater to the length (L2) of a bottom portion of the projection (4). On the skin-facing surface of the projecting-and-depressed sheet (10), the mean friction coefficient MIU in the longitudinal direction (X) is 0.3 or less, and a difference in friction coefficient between a forward path and a return path when moved back and forth along the longitudinal direction (X) is less than 0.1. The projecting-and-depressed sheet (10) has a work of compression of 2.

Abstract: The present invention provides a method for evaluating comfort evoking performance of sheets, with which whether or not a sheet has an ability to evoke comfort as a result of the sheet being touched, or a level of the ability is evaluated. The method includes the following steps (A) to (D): (A) bringing a test sheet, which is an evaluation target, into contact with the skin or hairs of an animal and applying a tactile stimulation to the animal; (B) extracting a biological sample from the animal after the tactile stimulation has been applied; (C) measuring an amount of oxytocin in the biological sample; and (D) comparing the amount of oxytocin measured with an amount of oxytocin in a biological sample extracted from the animal under a condition where there is no effect of the tactile stimulation.

Abstract: An absorbent article includes: a topsheet including a projecting-and-depressed region; a backsheet; and an absorbent member arranged between the topsheet and the backsheet. The absorbent article has a longitudinal direction that corresponds to a front-rear direction of a wearer and a width direction that is orthogonal to the longitudinal direction. A plurality of slanting projections (41) are formed in the projecting-and-depressed region (P). The slanting projections (41) project toward the wearer's skin side, and the position of the apex (t) of each slanting projection is deviated toward one side in the longitudinal direction (X) from the central position (41c) located between both ends of the slanting projection (41) in the longitudinal direction (X).

Abstract: Provided is a disposable diaper (1) which includes an absorbent member (4) and a topsheet (2). The topsheet (2) includes a first sheet (20) and a second sheet (21). Both sheets (20) and (21) are partially joined to form a plurality of joined regions (22), and the first sheet (20) has a plurality of projections (23) which protrude from the second sheet (21) toward the wearer's skin side at a portion other than the joined regions (22). The projections (23) include first projections (23A) and second projections (23B) and, when the topsheet (2) is viewed in a plan view, a second projection region (23R) is formed which includes the second projections (23B) surrounded by the plurality of first projections (23A). When the topsheet (2) is viewed in a plan view, the joined regions (22) include an inner joined region (22A1) in the second projection region (23R).

Abstract: An absorbent article includes a topsheet comprising a composite sheet. In the composite sheet, projections that protrude toward the skin of the wearer are formed by a first sheet protruding in a direction away from a second sheet at portions other than bonding portions. A plurality of first oblique bonding portion rows and a plurality of second oblique bonding portion rows are formed, and a long bonding portion elongated in a longitudinal direction is formed at each intersection of the first oblique bonding portion rows and the second oblique bonding portion rows. Laterally long projections elongated in a width direction are formed in a dispersed manner in the longitudinal direction and the width direction. Each laterally long projection is surrounded by two first oblique bonding portion rows and two second oblique bonding portion rows, and the long bonding portion is formed between adjacent laterally long projections in the width direction.

Abstract: An absorbent article including an absorbent member and a topsheet 2 on the skin facing side of the absorbent member is disclosed. The topsheet 2 includes a stack of a first sheet 20 and a second sheet 21. The topsheet 2 has a plurality of projections 23 resulting from the first sheet 20 protruding toward the skin of a wearer. The topsheet satisfies the following conditions: (1) the projections have a height of 0.5 to 10 mm; (2) the bonds 22 have a density of 10 to 30 bonds per a randomly chosen rectangular region measuring 10 mm in length and 15 mm in width in plan view; (3) the bonds in the rectangular region have a total area ratio of 12% to 35% relative to the area of the rectangular region; and (4) the topsheet has a shear strength of 21 to 70 N.

Abstract: An absorbent article includes a liquid permeable topsheet (10), a liquid impermeable or water repellent backsheet, and an absorbent member interposed between these sheets. The topsheet (10) is formed of a nonwoven sheet having high density portions (13A) and low density portions (14A). Each high density portion (13A) and each low density portion (14A) are different in density from each other. The high density portions (13A) and the low density portions (14A) are arranged in planar directions of the topsheet (10). The low density portions (14A) have a larger amount of a skin care agent (5) applied thereto than the high density portions (13A).

Abstract: An absorbent article includes a liquid permeable topsheet (10), a liquid impermeable or water repellent backsheet, and an absorbent member interposed between these sheets. The topsheet (10) is formed of a nonwoven sheet having high density portions (13A) and low density portions (14A). Each high density portion (13A) and each low density portion (14A) are different in density from each other. The high density portions (13A) and the low density portions (14A) are arranged in planar directions of the topsheet (10). The low density portions (14A) have a larger amount of a skin care agent (5) applied thereto than the high density portions (13A).

Abstract: A disposable diaper (1) has a waist opening portion and a pair of leg opening portions and contains an absorbent body including a topsheet and an absorbent core. The absorbent core (4) is composed of a central absorbent member (41) and a pair of side absorbent members (42) disposed on both sides of the central absorbent member (41). The central absorbent member (41) is discrete from the side absorbent members (42) in at least the crotch portion (C). Each side absorbent member has a raising elastic member which is provided near its outboard edge along the longitudinal direction, so that the side absorbent member (42) rises while worm. The diaper is configured to exert a higher wearing pressure in its regions (91) that are to be applied to a wearer's body part between the iliac crests and the anterior superior iliac spines than in its waist opening portion while worn.

Abstract: An absorbent article 1 includes an absorbent body 3 and an outer cover 2. The outer cover 2 has a front section A, crotch section C, and a rear section B and includes an outer sheet 21, an inner sheet 22, and elastic members 23. The outer cover 2 has a below-waist gather formed of a composite stretch panel in its below-waist portion D. The composite stretch panel has the outer and inner sheets 21, 22 bonded at bonds discretely arranged in the stretch direction thereof and the direction perpendicular thereto. The elastic members 23 extend not to pass the bonds without being fixed to the outer and inner sheets 21, 22 at other than their both ends. The outer and inner sheets 21, 22 form folds continuously extending over a plurality of the elastic members 23. The waist portion F of the outer cover 2 has a lower extension percentage in its laterally middle part than in the other parts on both sides of the middle part.

Abstract: A disposable diaper (1) has a waist opening portion and a pair of leg opening portions and contains an absorbent body including a topsheet and an absorbent core. The absorbent core (4) is composed of a central absorbent member (41) and a pair of side absorbent members (42) disposed on both sides of the central absorbent member (41). The central absorbent member (41) is discrete from the side absorbent members (42) in at least the crotch portion (C). Each side absorbent member has a raising elastic member which is provided near its outboard edge along the longitudinal direction, so that the side absorbent member (42) rises while worm. The diaper is configured to exert a higher wearing pressure in its regions (91) that are to be applied to a wearer's body part between the iliac crests and the anterior superior iliac spines than in its waist opening portion while worn.