Dark dyeing yarn containing polyester fibers and method of prepa

Details Dark dyeing yarn containing polyester fibers and method of prepa Dark dyeing yarn containing polyester fibers and method of prepa

1987-11-24

1989-05-30

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

2642102, 2642107, 2642108, 264230, 428373, D02G 300

Patent

active

048350532

ABSTRACT:
A yarn comprising polyester fibers having an improved combination of properties including darker dyeing capability, good thermal dimensional stability, and good light stability and dye lightfastness can be prepared by drawing and annealing a feeder yarn having a birefringence (.DELTA.n) of at least 0.0175 at carefully controlled temperatures and draw ratios.

REFERENCES:
patent: 4156071 (1979-05-01), Knox
patent: 4195051 (1980-03-01), Frankfort et al.
patent: 4491657 (1985-01-01), Saito et al.
patent: 4639347 (1987-01-01), Hancock et al.

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