Porous thermoformable heat sealable nonwoven fabric

摘要

A porous thermoformable heat sealable nonwoven fabric that is constructed by carding a bicomponent polymeric fiber and then heating the resulting fibrous web to cause bonding. The polymeric components of the bicomponent fiber have crystalline melting points that differ by at least 30 DEG C. The bicomponent fiber has a staple length ranging from 1.5'' to 3.0'' and a staple elongation-to-break of at least 30%.