Continuous process for spinning and drawing polyamide and...

Details Continuous process for spinning and drawing polyamide and... Continuous process for spinning and drawing polyamide and...

D - Textiles, Paper

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D01D 13/00 (2006.01) D01D 5/16 (2006.01) D01F 6/60 (2006.01) D02G 1/16 (2006.01) D02J 1/22 (2006.01) D02J 13/00 (2006.01)

Patent

CA 2080621

Abstract The present invention is a continuous process for spinning and drawing polyamide filaments comprising: (a) melting a polyamide and spinning the filaments from the molten polyamide through a spinnerette; (b) quenching the filaments; (c) applying a yarn finish to the filaments; (d) applying steam and heat to the filaments by a steam and heating unit comprising a steam box and at least one heated godet; (e) drawing the filaments; and optionally (f) texturing the filaments. The resulting filaments have low shrinkage, high crystallinity, and a high percentage of alpha crystals. 14

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