Process of preparing polyester yarn

Details Process of preparing polyester yarn Process of preparing polyester yarn

1988-11-29

1990-11-13

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

2642107, 2642108, 26421115, 26421117, 2642356, 2642905, 264346, D01D 516, D01D 1002, D01F 662

Patent

active

049700383

ABSTRACT:
A yarn comprising polyester fibers having an improved balance of properties (tenacity and boiling water shrinkage) is produced within predetermined limits. The polyester yarn is prepared by cold drawing a partially oriented feeder yarn, partially annealing the drawn yarn, and subsequently annealing the partially annealed cold drawn yarn at controlled tensions.

REFERENCES:
patent: 3452132 (1969-06-01), Pitzl
patent: 3739056 (1973-06-01), Evans et al.
patent: 4049763 (1977-09-01), Mineo et al.
patent: 4195051 (1980-03-01), Frankfort et al.
patent: 4195052 (1980-03-01), Davis et al.
patent: 4251481 (1981-02-01), Hamlyn
patent: 4374797 (1983-02-01), Koshinek et al.

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