Process for preparing poly(trimethylene terephthalate) yarns

Details Process for preparing poly(trimethylene terephthalate) yarns Process for preparing poly(trimethylene terephthalate) yarns

D - Textiles, Paper

01

F

D01F 6/62 (2006.01) D01D 5/08 (2006.01) D02J 1/22 (2006.01)

Patent

CA 2175875

Poly(trimethylene terephthalate) is formed into a bulk continuous filament yarn by a process comprising melt-spinning poly(trimethylene terephthalate) to produce a plurality of spun filaments; forming the spun filaments into a yarn; and drawing the yarn in a two-stage drawing process wherein the second stage draw is at a significantly higher draw ratio than the first draw ratio.

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