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U.S. Patent No. 10,610,422
May 5, 2020
By: Karen McIntyre
Editor
Jun Fukasawa, Kanonji, Japan; Toshiyasu Yoshioka, Kanonji, Japan; and Noriko Nagase, Kanonji, Japan. Assigned to Unicharm Corporation, Ehime, Japan. Filed: 5/18/15 Issued: 4/7/20 A disposable wearing article, comprising: a longitudinal direction and a lateral direction, front and rear waist regions, a crotch region extending between the front and rear waist regions, a waist panel for forming the front and rear waist regions, a liquid absorbent structure that extends from the crotch region to the front and rear waist regions and includes a liquid absorbent core, a waist opening, and a pair of leg openings, wherein the liquid absorbent structure includes a rear end portion extending from a rear end edge of the liquid absorbent core to a side of the waist opening in the rear waist region, and a front end portion extending from a front end edge of the liquid absorbent structure to a side of the waist opening in the front waist region, in the rear waist region, a waist opening edge of the waist panel and an outer end edge of the rear end portion of the absorbent structure overlap each other in a plan view, in the front waist region, the waist opening edge of the waist panel and an outer end edge of the front end portion of the absorbent structure are spaced apart from each other in the longitudinal direction in a range of 5-20 mm, the front and rear end portions of the liquid absorbent structure include both lateral edge portions spaced apart from each other in the lateral direction and a central portion between both the lateral edge portions, and both the lateral edge portions have higher folding stiffness in the longitudinal direction than the central portion, the waist panel includes inner layer sheets configured to face a wearer’s skin when the disposable wearing article is worn, outer layer sheets configured to face away from the wearer’s skin when the disposable wearing article is worn, and front and rear waist elastics interposed between the inner and outer layer sheets, and a first spaced-apart dimension between the waist opening edge and one of the front waist elastics nearest to the waist opening is smaller than a second spaced-apart dimension between the waist opening edge and one of the rear waist elastics nearest to the waist opening.
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