Abstract: An absorbent composition containing cellulose nanofibers and a cellulose derivative and a method for making the same are disclosed. The cellulose derivative has a viscosity of 1000 mPa·s or higher in a 1 mass % aqueous solution at 25° C. and a degree of etherification of less than 0.9. The cellulose derivative is preferably at least one member selected from the group consisting of carboxymethyl cellulose, carboxyethyl cellulose, a carboxymethyl cellulose salt, and a carboxyethyl cellulose salt, more preferably a carboxymethyl cellulose salt, even more preferably sodium carboxymethyl cellulose.

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: An absorbent composition containing cellulose nanofibers and a water-soluble polymer and having a specific surface area of at least 1.0 m2/g and a method for producing the same. The water-soluble polymer is preferably a cellulose derivative or its salt. The cellulose derivative preferably has a degree of etherification of 1.0 or lower. The absorbent composition is preferably produced by mixing cellulose nanofibers and the water-soluble polymer in a liquid and freeze-drying the resulting mixed solution.

Abstract: An absorbent composition containing cellulose nanofibers and a cellulose derivative and a method for making the same are disclosed. The cellulose derivative has a viscosity of 1000 mPa·s or higher in a 1 mass % aqueous solution at 25° C. and a degree of etherification of less than 0.9. The cellulose derivative is preferably at least one member selected from the group consisting of carboxymethyl cellulose, carboxyethyl cellulose, a carboxymethyl cellulose salt, and a carboxyethyl cellulose salt, more preferably a carboxymethyl cellulose salt, even more preferably sodium carboxymethyl cellulose.

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: A stretchable absorbent core (10) includes a stretchable base sheet (20), and a plurality of separate and independent absorbers (30) disposed at least on one side of the base sheet (20). The absorbers (30) are fixed to the base sheet (20) through respective fixing points (33) in such a design that the shape of each absorber is not deformed upon stretch of the base sheet (20). The stretchable absorbent core (10) exhibits stretchability between the fixing points (33). It is preferable that the stretchable absorbent core (10) does not exhibit stretchability at the fixing points (33).

Abstract: An absorbent member (10) of the invention has a hydrophilic continuous fiber web (12) and lumpy particles of an absorbent polymer (13) held in the web (12). The absorbent polymer (13) is localized in part in a planar or thickness direction of the absorbent member (10). The continuous fibers in a region (M) in a planar direction of the web (12) where the absorbent polymer is distributed are in a state cut into a large number of staple fibers (122). A method of producing an absorbent member includes the step of spreading lumpy particles of an absorbent polymer (13) on a continuous fiber web (12) and pressing the continuous fibers in part of the web (12) onto the absorbent polymer (13) to cut the continuous fibers.

Abstract: An absorbent article (100) includes a topsheet (101), a backsheet (102), and an absorbent core (10). The absorbent core (10) includes a number of discretely and independently arranged absorbent members (30) located across a planar direction of the article (100). An intermediate sheet (20) is disposed between the topsheet (101) and the absorbent core (10) or between the backsheet (102) and the absorbent core (10). The absorbent members (30) are fixed to the intermediate sheet (20). It is preferable that an absorption rate of physiological saline solution measured by D/W method of each of the topsheet (101), the intermediate sheet (20), and the absorbent core (10) satisfies the following relationship: the topsheet (101)<the intermediate sheet (20)<the absorbent core (10).

Abstract: A stretchable absorbent core (10) includes a stretchable base sheet (20), and a plurality of separate and independent absorbers (30) disposed at least on one side of the base sheet (20). The absorbers (30) are fixed to the base sheet (20) through respective fixing points (33) in such a design that the shape of each absorber is not deformed upon stretch of the base sheet (20). The stretchable absorbent core (10) exhibits stretchability between the fixing points (33). It is preferable that the stretchable absorbent core (10) does not exhibit stretchability at the fixing points (33).

Abstract: An absorbent article (100) includes a topsheet (101), a backsheet (102), and an absorbent core (10). The absorbent core (10) includes a number of discretely and independently arranged absorbent members (30) located across a planar direction of the article (100). An intermediate sheet (20) is disposed between the topsheet (101) and the absorbent core (10) or between the backsheet (102) and the absorbent core (10). The absorbent members (30) are fixed to the intermediate sheet (20). It is preferable that an absorption rate of physiological saline solution measured by D/W method of each of the topsheet (101), the intermediate sheet (20), and the absorbent core (10) satisfies the following relationship: the topsheet (101)<the intermediate sheet (20)<the absorbent core (10).

Abstract: An absorbent member (10) of the invention has a hydrophilic continuous fiber web (12) and lumpy particles of an absorbent polymer (13) held in the web (12). The absorbent polymer (13) is localized in part in a planar or thickness direction of the absorbent member (10). The continuous fibers in a region (M) in a planar direction of the web (12) where the absorbent polymer is distributed are in a state cut into a large number of staple fibers (122). A method of producing an absorbent member includes the step of spreading lumpy particles of an absorbent polymer (13) on a continuous fiber web (12) and pressing the continuous fibers in part of the web (12) onto the absorbent polymer (13) to cut the continuous fibers.

Abstract: An absorbent article 10 has an absorbent member 1. The absorbent member 1 includes a web 2 of hydrophilic continuous fibers and a superabsorbent polymer 3 embeddedly supported in the web 2. The superabsorbent polymer 3 has its particle size varied between the topsheet side and the backsheet side of the web 2, preferably has a larger size in the topsheet side than in the backsheet side of the web 2. The superabsorbent polymer preferably has a rate of liquid permeation of 150 to 1500 g/min under a load of 0.6 kPa. The continuous fibers are preferably crimped fibers with a crimp percentage of 10% to 90%.

Abstract: Disclosed is an absorbent article having an absorbent member. The absorbent member has an absorbent core wrapped in a sheet of a fibrous material. The absorbent core contains a web of hydrophilic, crimped continuous fibers and a superabsorbent polymer which is embeddedly supported in the web. The continuous fibers are preferably oriented in the planar direction of the absorbent member. Also disclosed is an absorbent article having an absorbent member, in which a web of hydrophilic, crimped continuous fibers and a fiber accumulated layer or a nonwoven fabric are superposed on each other. The fiber accumulated layer and the nonwoven fabric are made of natural pulp and/or synthetic fibers and may or may not contain a superabsorbent polymer. The continuous fibers are oriented in the planar direction of the absorbent member.

Abstract: An absorbent article has an absorbent member 1 containing a web 2 of hydrophilic long fibers. The long fibers have a crimp percentage of 40% to 90% and are oriented in the planar direction of the absorbent member 1. The web 2 has a superabsorbent polymer embeddedly supported therein. The absorbent member 1 preferably has two or more webs 2 and a superabsorbent polymer layer 3 sprinkled between the webs 2, with part of the superabsorbent polymer being embeddedly supported in the web 2.