Method and apparatus for spinning a multifilament yarn

Details Method and apparatus for spinning a multifilament yarn Method and apparatus for spinning a multifilament yarn

1999-02-18

2000-08-15

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

2642108, 26421114, 264237, 425 722, 4253782, 425404, 425464, D01D 5092, D01D 516, D02G 300

Patent

active

061031585

ABSTRACT:
A method and an apparatus for spinning a multifilament yarn of a thermoplastic material, wherein the thermoplastic material is extruded through a spinneret to form a downwardly advancing filament bundle. The filaments then advance through a cooling device with two cooling zones. In the first cooling zone, an air stream is directed substantially transverse to the direction of the advancing filaments, and in the second cooling zone, cooling occurs by a cooling stream composed of a mixture of air and liquid, with the cooling stream flowing oppositely to the direction of the advancing filaments. The advancing filaments are gathered to form a multifilament yarn, which is then wound into a package.

REFERENCES:
patent: 4045534 (1977-08-01), Fisher et al.
patent: 4277430 (1981-07-01), Peckinpaugh et al.
patent: 5173310 (1992-12-01), Katou et al.

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