Patents

Elastic nonwoven sheet

November 29, 2011

Invista has received a patent for a stretchable nonwoven sheet consisting of a necked nonwoven substrate substantially uniformly impregnated with an elastomeric polymer solution without forming an elastomeric polymer layer on either surface of said substrate, the stretchable nonwoven sheet having a ratio of third unload cycle force at 100% elongation to third load cycle force at 100% elongation, after the stretchable nonwoven sheet has been extended to 140% in the necked direction three times, of at least 0.3:1, wherein the necked nonwoven substrate has a percent elongation in a cross-direction of between about 30% and about 300% and, wherein the stretchable nonwoven sheet has a thickness of 0.25 mm to 0.75 mm.
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