Resilient molded preform made from staple fibers of self-texturi

Details Resilient molded preform made from staple fibers of self-texturi Resilient molded preform made from staple fibers of self-texturi

1995-09-26

1997-03-25

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

29745248, 428338, 428362, 428398, 442189, 442360, A47C 702, A47C 2712, D04H 106, D04H 150

Patent

active

056142960

ABSTRACT:
A method of producing self-texturing filaments that exhibit a desirable tendency to coil rather than to bend sharply or zig zag. The method includes directing a quenching fluid at extruded hollow filaments of a liquid polymer predominantly from one side of the hollow filaments to thereby produce hollow filaments with different orientations on each side. Thereafter the temperature of the hollow filaments is raised to a temperature sufficient for the filaments to relax, but less than the temperature at which the filaments would shrink. When the relaxed filaments are cut into staple lengths, they tend to assume a form that provides a favorable degree of mechanical entanglement that is useful in forming resilient solid structures.

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