Method of forming self-texturing filaments and resulting self-te

Details Method of forming self-texturing filaments and resulting self-te Method of forming self-texturing filaments and resulting self-te

1993-11-22

1995-04-18

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

264173, 26417714, 2642091, 2642093, 2642105, 2642108, 26421115, 26421117, 264342RE, D01D 524, D02G 100

Patent

active

054076250

ABSTRACT:
A method is disclosed of producing self-texturing filaments that exhibit a desirable tendency to coil rather than to bend sharply or zig zag. The method comprises 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.

REFERENCES:
patent: 3663683 (1972-05-01), Czerkas et al.
patent: 4035879 (1977-07-01), Schippers
patent: 4082731 (1978-04-01), Knopka
patent: 4301102 (1981-11-01), Fernstrom et al.
patent: 4562029 (1985-12-01), Black
patent: 4803036 (1989-02-01), Maruhashi et al.
patent: 5069843 (1991-12-01), Hansen
English Translation of U.S.S.R. 1,583,486 (Published Aug. 7, 1990).
Translation of Japan 44-20,497 (Published Sep. 3, 1969).

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