A continuous process for spinning and drawing polyamide and apparatus thereof.

摘要

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 (6) 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. <IMAGE>