High loft nonwoven fabrics and method for producing same

Details High loft nonwoven fabrics and method for producing same High loft nonwoven fabrics and method for producing same

1992-04-16

1993-12-14

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

428286, 428369, 428298, D02G 300, D04H 104

Patent

active

052701077

ABSTRACT:
A nonwoven filamentary web having high loft is produced by extruding a molten thermoplastic polymer or polymer blend through a spinneret to form continuous filaments while maintaining extrusion conditions which induce melt-fracture of the extrudate; attenuating the thus extruded melt-fractured filaments to obtain filamentary material having a crimped structure; and depositing the melt-fractured filamentary material on a collection surface and forming a web therefrom.

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