Process of making multicomponent fibers containing a nucleating

Details Process of making multicomponent fibers containing a nucleating Process of making multicomponent fibers containing a nucleating

1997-02-25

1998-09-22

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

26417214, 26417215, 2642105, 2642106, 264211, 26421117, D01F 804, D02G 100

Patent

active

058110453

ABSTRACT:
There is provided in accordance with the present invention a process for making a helically crimped conjugate fiber containing at least a first polymeric composition and a second polymeric composition. The first and second polymeric compositions respectively contain different thermoplastic polymers having different solidification periods. The degree of latent helical crimp is controlled by selective addition of a nucleating agent to at least one of the first and second polymeric compositions. Addition of the nucleating agent to the polymeric composition with a faster solidification period increases the latest crimp and addition of the nucleating agent to the polymeric composition with a slower solidification period decreases the latent crimp.

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