Apparatus for melt-spinning thermoplastic polymer fibers

Details Apparatus for melt-spinning thermoplastic polymer fibers Apparatus for melt-spinning thermoplastic polymer fibers

1989-04-04

1990-11-27

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

2642108, 26421114, B29C 4700, D01D 5092

Patent

active

049732366

ABSTRACT:
A thermoplastic polymer yarn is spun into a spinning tube charged with a pressurized gas of more than 1 kg/cm.sup.2 G and withdrawn through a yarn exit provided with a unique sealing device which substantially prevents the charged gas from leakage but allows passage of the yarn out from the spinning tube. The resultant yarn has a high molecular orientation due to the improved quenching effect and the increase of resistance against yarn travelling of the charged gas.

REFERENCES:
patent: 2252684 (1941-08-01), Babcock
patent: 2451854 (1948-10-01), Mehler
patent: 3707593 (1972-12-01), Fukada et al.
patent: 4049763 (1977-09-01), Mineo et al.
patent: 4303607 (1981-12-01), DeMaria et al.
patent: 4491657 (1985-01-01), Saito et al.
patent: 4780073 (1988-10-01), Katsumi et al.

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