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Patents

Absorbent Article:

U.S. Patent No. 11,090,201

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By: Karen McIntyre

Editor, Nonwovens Industry

Ryoko Kurihara, Tochigi, Japan; Junta Tagomori, Tochigi, Japan; and Mariko Nagashima, Tochigi, Japan.
Assigned to Daio Paper Corporation, Ehime, Japan.

Filed: 3/24/17
Issued: 8/17/21

An absorbent article in which an absorber is interposed between a surface sheet and a back sheet, wherein the absorbent article is an incontinence pad having a volume sufficient to absorb 20 cc or more of urine, and the surface sheet is formed by applying a water repellent to a spunlace non-woven fabric containing 100 wt % of cotton fiber, wherein the surface sheet comprises: a plurality of protrusions formed along a longitudinal direction of the absorbent article and at an interval in a widthwise direction on a skin-facing surface; a plurality of recesses formed along the longitudinal direction of the absorbent article and between adjacent protrusions on said skin-facing surface, wherein the plurality of recesses have a smaller dimension in the widthwise direction than the plurality of protrusions; and a plurality of openings extending along the longitudinal direction of the surface sheet in at least a longitudinal area and penetrating through the surface sheet is formed in the plurality of recesses, wherein the surface sheet has a section that is configured to be adjacent to an excretory opening of a user when the absorbent article is worn by the user, said section defining a widthwise area and the longitudinal area, and said plurality of openings defined in at least the widthwise area; wherein the surface sheet is formed such that a basis weight of the plurality of recesses provided by the surface sheet is lower than an average basis weight of the plurality of protrusions and a density of the plurality of recesses provided by the surface sheet is lower than an average density of the plurality of protrusions.

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