Crimp enhancement additive for multicomponent filaments

Details Crimp enhancement additive for multicomponent filaments Crimp enhancement additive for multicomponent filaments

1997-09-30

1999-03-02

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428372, 428373, 442335, 442352, 442353, 442359, 442364, 442401, 442409, 442416, B32B 2718, B32B 2732

Patent

active

058768408

ABSTRACT:
Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement additive. Specifically, the crimp enhancement additive is added to one of the polymeric components in order to accelerate its solidification rate. The additive enhances crimp, allows for highly crimped filaments to be made at smaller deniers, and produces low density webs with improved stretch and cloth-like properties. Specifically, the additive incorporated into the filaments is a nonionic surfactant such as an alkyl ether alkoxylate, a siloxane alkoxylate, an ester of a polyalkylene glycol, a polysaccharide derivative, a glycerol ester, or mixtures thereof.

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