Manufacture of synthetic filaments

Details Manufacture of synthetic filaments Manufacture of synthetic filaments

1975-07-10

1977-07-26

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

264176F, 264237, D01D 522

Patent

active

040383571

ABSTRACT:
The present invention provides a method for the manufacture of potentially crimpable, synthetic linear polymer filaments which comprises the steps of melt spinning a plurality of filaments, initially partially cooling the hot filaments evenly with a stream of gas, and asymmetrically cooling the filaments further by causing them to contact continuously renewed thin film of liquid.

REFERENCES:
patent: 2324397 (1943-07-01), Hull
patent: 2990236 (1961-06-01), Reseley
patent: 3135811 (1964-06-01), Barnett et al.
patent: 3480709 (1969-11-01), Jacob et al.
patent: 3511905 (1970-05-01), Martin
patent: 3538722 (1970-11-01), Stream
patent: 3576931 (1971-04-01), Chopra et al.
patent: 3629386 (1971-12-01), Knapp

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