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Patents

Pull-On Disposable Wearing Article

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By: Karen McIntyre

Editor, Nonwovens Industry

A pull-on disposable wearing article has been patented. The article comprises: a base sheet defining a front waist region, a rear waist region and a crotch region extending between said front and rear waist regions and a liquid-absorbent panel attached to an inner side of said base sheet so as to extend over said crotch region and into said front and rear waist regions.

The base sheet having waist surroundable upper end portions lying outside longitudinally opposite ends of said panel and transversely opposite lateral zones lying outside transversely opposite side edges of said panel, wherein said transversely opposite lateral zones are connected to each other at bonding sites disposed longitudinally along lateral margins of said transversely opposite lateral zones to define a waist-hole and a pair of leg-holes; waist surroundable elastic members extending in a waist-circumferential direction along said waist surroundable upper end portions; a plurality of auxiliary elastic members located between said waist surroundable elastic members and said leg-holes in at least one of said front and rear waist regions, each of said auxiliary elastic members having a working section extending in the waist-circumferential direction between inner ends of the bonding sites.

When each of said auxiliary elastic members is in a relaxed, non-stretched state and is not attached to said base sheet, the working section of said auxiliary elastic member has a first dimension as measured in said waist-circumferential direction.

The panel in at least one of said front and rear waist regions has a second dimension as measured in said waist-circumferential direction between said transversely opposite side edges of said panel; said first dimension is substantially equal to or longer than said second dimension; said base sheet has a region coextensive, in the waist-circumferential direction, with the working sections of said auxiliary elastic members, said region also extending between the inner ends of said bonding sites.
When said auxiliary elastic members are in a non-stretched state and remain attached to said base sheet, said region of said base sheet has a third dimension in the waist-circumferential direction; and a ratio of the third dimension to the first dimension is in a range of 1.0 to 1.1.

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