Apparatus for quenching melt-spun filaments

Details Apparatus for quenching melt-spun filaments Apparatus for quenching melt-spun filaments

1980-05-13

1981-08-25

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

264176F, 4253822, B29C 2500

Patent

active

042856469

ABSTRACT:
Disclosed is a melt-spinning process of the type wherein molten polymer is extruded downwardly through a fiber pack and through coaxial circular rows of holes of a spinneret to form a circularly arranged group of filaments. Quench gas is directed across the filaments emerging from the spinneret, and the cooled filaments are gathered and redirected at a guide, which may be stationary or rotating. The quench gas is delivered by a conduit extending downwardly through the pack and spinneret coaxially relative to the rows of holes and then redirected and discharged laterally outwardly through the group of filaments above the guide.

REFERENCES:
patent: 2730758 (1956-01-01), Morrell et al.
patent: 2953427 (1960-09-01), Egger
patent: 3135811 (1964-06-01), Barnett et al.
patent: 3259681 (1966-07-01), Bull et al.
patent: 3628931 (1971-12-01), Russell
patent: 3858386 (1975-01-01), Stofan
patent: 3969462 (1976-07-01), Stofan
patent: 4123208 (1978-10-01), Klaver et al.

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