05162074 is referenced by 221 patents and cites 105 patents.

A method for extruding a wide variety of plural-component fiber configurations in a spin pack utilizes one or more disposable distributor plates in which distributor flow paths are etched on one or both sides to distribute the polymer components to appropriate spinneret inlet hole locations. The etching process permits the distribution paths to be sufficiently small to facilitate issuing multiple discrete polymer component streams axially into each spinneret orifice inlet hole, whereby the resulting extruded fiber can be made up of at least one hundred side-by-side sub-fibers. If the adjacent sub-fibers are weakly bonded, they can be readily separated by agitation to significantly increase the effective yield from the spin pack and provide very fine and uniform fibers.

Title
Method of making plural component fibers
Application Number
103594
Publication Number
5162074
Application Date
August 7, 1989
Publication Date
November 10, 1992
Inventor
William H Hills
West Melbourne
FL, US
Assignee
BASF Corporation
NJ, US
IPC
D01D 4/00
D01F 8/04
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