High shrinkage polyester fibers and method of preparation

Details High shrinkage polyester fibers and method of preparation High shrinkage polyester fibers and method of preparation

1987-12-22

1989-05-02

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

5283081, 525425, 525444, 2641761, 2642108, 26421112, C08G 6302

Patent

active

048269492

ABSTRACT:
High shrinkage polyester fibers having good strength and uniform dyeability are disclosed, along with a method of producing the high shrinkage polyester fibers, by drawing a feeder yarn having a birefringence (.DELTA.n) of at least 0.0175 at ambient temperature and carefully controlled draw ratios.

REFERENCES:
patent: 4442057 (1984-04-01), Brody

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