D - Textiles – Paper – 02 – G
Patent
D - Textiles, Paper
02
G
28/29, 118/35
D02G 3/04 (2006.01) D01D 5/28 (2006.01) D01F 8/14 (2006.01) D02G 1/02 (2006.01)
Patent
CA 1085147
ABSTRACT OF THE DISCLOSURE Polyester feed yarn for drawtexturing, having ar longation at break of 30 to 150 percents, is com- posed of three different types of filaments. (A) 20 to 40 percent of the filaments consist of a polymer of ethylene terephthalate and 0 to 3 mole percent of modi- fying groups for imparting cationic dyeability. (B) 20 to 40 percent of the filaments consist of a copolymer of ethylene terphthalate and about 5 to 15 mole percent of other ester units. (C) 15 to 35 weight percent of the yarn consists of eccentric bicomponent filaments of the above two polymers. The bicomponent filaments have a smaller denier and lower elongation at break than the other filaments, so tat the bicomponent filaments can be broken preferentially when the yarn is drawtextured to provide spun-like tactility. When broken, the bicomponent filaments helically crimp and become entangled in the yarn bundle with a slight, uniform protrusion of ends above the surface which provides good resistance to pilling in fabrics.
311245
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
LandOfFree
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