Process and apparatus for the production of textured polyester y

Details Process and apparatus for the production of textured polyester y Process and apparatus for the production of textured polyester y

1977-07-27

1978-10-17

Gorenstein, Charles

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

57157S, 57157TS, D02G 102

Patent

active

041201418

ABSTRACT:
An improved process is provided for simultaneously drawing and false-twist texturing of partially oriented polyester yarn. The process is of the type wherein the yarn from a supply source is passed through a yarn feed system; a heating zone in which the yarn is heated to a temperature of from about 175.degree. to about 235.degree. C; a cooling zone in which the yarn is cooled to a temperature below about 80.degree. C; a false-twisting means; and take-up means whereby the yarn is drawn to a desired draw ratio; to winding up means; and is characterized in that the yarn emerging from said heating zone and before entering said cooling zone is passed through a heat-maintenance zone, in which the yarn is maintained at a temperature and for a time sufficient to permit substantially complete crystallization of the yarn so that the fully-drawn textured yarn product has a tenacity of at least 3.5 gram per denier. Apparatus for carrying out said improved process is also provided.

REFERENCES:
patent: 2942325 (1960-06-01), Spellman, Jr.
patent: 3696601 (1972-10-01), McCard
patent: 3796036 (1974-03-01), Parker
patent: 3813863 (1974-06-01), Ritter
patent: 3910027 (1975-10-01), Bach et al.

Affiliated with

Also associated with

Rating

Process and apparatus for the production of textured polyester y does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for the production of textured polyester y, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for the production of textured polyester y will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-369568