Process for high speed production of pre-oriented yarns

Details Process for high speed production of pre-oriented yarns Process for high speed production of pre-oriented yarns

1978-02-23

1980-01-22

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642104, D01D 508

Patent

active

041850629

ABSTRACT:
A process for the high speed production of pre-oriented yarns from synthe linear polymers, in particular polyesters, comprising the steps of melt spinning the polymer by extrusion through a spinneret and, before winding up the extruded filament bundle, causing said bundle to pass through a zone wherein the ambient gas, in particular air, is caused to move in a direction parallel to and concurrent with that of the filament bundle progressing towards the wind up means.

REFERENCES:
patent: 3423266 (1969-01-01), Davies et al.
patent: 3481588 (1969-12-01), Davies et al.
patent: 3486318 (1969-12-01), Cannon et al.
patent: 3706826 (1972-12-01), Bremner et al.
patent: 3939639 (1976-02-01), Ellegast
patent: 4017580 (1977-04-01), Barbes
patent: 4058385 (1977-11-01), Klerst

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