Patent ID: 9132048
Filing Date: 2015-09-15
Classification: A61F,Y10T

Abstract:
1. A water-absorbent sheet structure comprising a structure in which an absorbent layer comprising a water-absorbent resin is sandwiched with a hydrophilic nonwoven fabric from an upper side and a lower side of the absorbent layer, wherein at least one side of the upper side and the lower side of the water-absorbent sheet structure is subjected to embossing, wherein a central region of a water-absorbent sheet structure along a longitudinal direction of the structure is subjected to: wavy embossing comprising a wavy embossing extending along the longitudinal direction, and linear embossing in a direction from each of tips of wavy forms formed by the wavy embossing towards an edge portion contouring along the longitudinal direction of the water-absorbent sheet structure, wherein a branched structure of embossing formed by the wavy embossing and the linear embossing has an approximate Y-shape-form, wherein the edge portion contouring along the longitudinal direction of the water-absorbent sheet structure comprises non-embossing regions that are not subjected to embossing, extending along the longitudinal direction, wherein the brunched embossing comprises a plurality of segments each including the wavy embossing with the linear embossing, wherein the plurality of segments are discontinued along the longitudinal direction, and each of the plurality of segments extends continuously from one non-embossing region to the opposite non-embossing region of edge portion contouring along the longitudinal direction, and further wherein an area of the embossing provided on the water-absorbent sheet structure is from 2 to 25% of an entire area of the water-absorbent sheet structure.