Patents

Absorbent article

March 6, 2012

An absorbent article comprising, in integral formation, at least, a rectangular liquid permeable top sheet, an absorbent element including an absorbent covered with a crepe paper, a rectangular water vapor permeable waterproof sheet, and a rectangular liquid impermeable back sheet has been patened by Daio Paper.

The absorbent article further comprising: on a first portion of the water vapor pe meable waterproof sheet, a water content indicator coating layer provided between the water vapor permeable waterproof sheet and the absorbent element, the water content indicator coating layer comprising a hydrophilic resin coating layer and a layer of an information mark provided on an inner surface of the hydrophilic resin coating layer, and wherein a permeability of the first portion of the water vapor permeable waterproof sheet and the hydrophilic resin coating layer is lower than a permeability of a second portion of the water vapor permeable waterproof sheet on which the hydrophilic resin coating layer is not provided on the water vapor permeable waterproof sheet.

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