High speed process of making polyamide filaments

Details High speed process of making polyamide filaments High speed process of making polyamide filaments

1987-05-05

1989-09-05

Lorin, Hubert

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642108, 264211, 26421114, D01F 102

Patent

active

048636649

ABSTRACT:
A high speed process for producing polyamide filaments utilizing one or more melt additives selected from the group consisting of water, alcohols, and organic acids to form a homogeneous polyamide-additive mixture so that upon extrusion of the mixture the polyamide has a relative viscosity in the range of from about 2.0 to about 3.0, melt-extruding the mixture to form filaments, quenching and drawing the filaments, and taking up the filaments at a speed greater than 4000 mpm. The process improves package build, yarn quality, and yarn processing conditions, and enables low elongations, high tenacity, and higher production speeds.

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patent: 4592468 (1986-05-01), Follows et al.

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