Importance

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Abstract

A water-absorbent sheet comprising a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, wherein the water-absorbent sheet has a laminate structure in which the absorbent layer is fractionated into a primary absorbent layer and a secondary absorbent layer with a breathable fractionating layer, and wherein at least one sheet out of the nonwoven fabrics is a spunbond nonwoven fabric, and at least a nonwoven fabric at a lower side out of the nonwoven fabrics is a hydrophilic nonwoven fabric. The water-absorbent sheet of the present invention exhibits some effects that a water-absorbent sheet is capable of accomplishing avoidance of gel blocking phenomenon and liquid leakage, while obtaining basic properties as a water-absorbent sheet at a high level, by using specified nonwoven fabrics, and further providing a hydrophilic nonwoven fabric as a lower side of a nonwoven fabric of the absorbent layer of a water-absorbent sheet, even for a water-absorbent sheet containing a very small amount of pulps and being thinner than a conventional product.

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First Claim