Disposable Pant-type Diaper Having Improved Protection Against Red Marking

July 24, 2013

U.S. Patent No.: 8,257,334 B2
Company: P&G.
Filed: 2/13/03
Issued: 9/4/12

A disposable pull-on garment having a front region, a back region and a crotch region between the front region and the back region, comprising: a chassis provided in the front, back and crotch regions and having edge lines in the front and back regions, the chassis including a topsheet, a backsheet associated with the topsheet, and an absorbent core disposed between the topsheet and the backsheet; and a pair of extensible front ear panels extending laterally outward from the chassis in the front region, and a pair of extensible back ear panels extending laterally outward from the chassis in the back region, each of the front and back ear panels having an outermost edge line; each of the front and back ear panels being joined along its outermost edge line to its corresponding opposite front or back ear panel to form two overlapping seams, two leg openings and a waist opening; at least one of the overlapping seams having a substantially bonded portion extending from the waist opening to an unbonded portion and the unbonded portion extending from the substantially bonded portion to one of the leg openings such that the ratio in the length of the unbonded portion to the substantially bonded portion is between about 4:96 and about 20:80; wherein the unbonded portion has a length of 4-20 millimeters.n

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