Verfahren und Vorrichtung zum Herstellen von Polyestergarnen

摘要

The invention relates to a process for producing technical polyester yarns in which, for pre-drawing purposes, polyester filaments are heated in a heating region to a above the glass transition temperature and swept in counterflow by a gaseous medium. The polyester filaments are then re-drawn with an individual titre > 1 and a predetermined elongation ratio and wound at high speed.