Process for the production of a weft fiber of polyester-poy

Details Process for the production of a weft fiber of polyester-poy Process for the production of a weft fiber of polyester-poy

1986-11-20

1988-08-02

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Multifilament yarns

57282, 57902, D02G 348, D02G 300

Patent

active

047606908

ABSTRACT:
A process is disclosed for production of a heat-treated, coarse fiber of polyester-POY, whereby the fiber is first twisted and then continuously relaxed and tempered at a temperature from 130.degree. to 250.degree. C. to an extent from 20 to 55%. The slide-resistant fiber produced in this manner, displaying an elongation at break from 150 to 350%, a thermal shrink from +6 to -6% can be employed without further pre-treatment as weft yarn for tire cord webs.

REFERENCES:
patent: 3093955 (1963-06-01), Cadario
patent: 3665994 (1972-05-01), Kovac et al.
patent: 4357385 (1982-11-01), Kuroda et al.
patent: 4563392 (1986-01-01), Harpell et al.

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