Thermoformable barrier nonwoven laminate
AssigneeKimberly-Clark Worldwide, Inc.
InventorsPaul Joseph Datta, Stanley Michael Gryskiewicz, Richard Daniel Pike
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Abstract
The present invention provides a barrier laminate having a barrier layer and a lofty crimped-fiber nonwoven web layer, which laminate provides a foam-like resiliency, cloth-like texture and liquid barrier property. The barrier layer of the laminate is selected from films, microfiber nonwoven webs and laminates thereof, and the crimped-fiber web layer, which contains a structural fiber component and an heat-activatable adhesive component, has substantially uniformly distributed interfiber bonds. Additionally provided are thermoformed articles from the laminate and a thermoforming process for producing the articles.
Claims8
A thermoformable laminate comprising a nonwoven web layer and a liquid-barrier layer, said nonwoven web layer comprising a structural component forming crimped fibers and a heat-activatable adhesive component, wherein said structural component comprises a fiber-forming thermoplastic polymer and said adhesive component comprises a thermoplastic polymer having a melting point which is lower than the melting point of said structural component and said nonwoven web contains interfiber bonds at the cross-over points of said fibers distributed throughout said web layer, wherein said laminate has a Gurley bending stiffness between greater than about 50 and below 20,000 and provides a foam-like resiliency and cloth-like texture.
Dependencies are inferred from the claim text.