Polyester filaments, yarns and tows

Details Polyester filaments, yarns and tows Polyester filaments, yarns and tows

1991-09-03

1993-11-16

Cannon, James C.

Textiles: weaving

Fabrics

Materials

57243, 428229, 428364, D02G 302, D03D 1500

Patent

active

052614727

ABSTRACT:
Drawing, especially cold-drawing, or hot-drawing or other heat-treatments of spin-oriented crystalline polyester filaments, and particularly polyester feed yarns, that have been prepared by spinning at speeds of, e.g., 4 kg/min, and have low shrinkage and no natural draw ratio in the conventional sense, provides useful technique for obtaining uniform drawn filaments of desired denier and thereby provides improved flexibility to obtain filaments and yarns of various denier. The resulting uniform filaments have useful properties that are improved in certain respects.

REFERENCES:
patent: 3771307 (1973-11-01), Petrille
patent: 3772872 (1973-11-01), Piazza et al.
patent: 4134882 (1979-01-01), Frankfort et al.
patent: 4156071 (1979-05-01), Knox
patent: 4195051 (1980-03-01), Frankfort et al.
patent: 4407767 (1983-10-01), Seaborn
patent: 5066447 (1991-11-01), Knox et al.
F. Maag, Production of Warps from Flat Synthetic Filament Yarns, Textile Month, May 1984, pp. 48, 49, 50.
Frank Hunter, Draw-Beaming, Fiber World, Sep. 1984 pp. 61-68.

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