PROCESS FOR THE PRODUCTION OF MODERATELY ELASTIC CRIMP YARNS

PROCESS FOR THE PRODUCTION OF MODERATELY ELASTIC CRIMP YARNS

A process for the continuous production of moderately elastic crimp yarn from unstretched synthetic filaments by false-twist crimping, wherein the unstretched synthetic filaments are initially fully stretched under heat with a slight false-twist, after which they are subjected in the same operation...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HERBERT SCHERZBERG
Format: Patent
Sprache:eng
Schlagworte:
CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS
MECHANICAL FINISHING OF YARNS OR ROPES
TEXTILES
WARPING OR BEAMING
YARNS
YARNS OR THREADS
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Beschreibung
Zusammenfassung:A process for the continuous production of moderately elastic crimp yarn from unstretched synthetic filaments by false-twist crimping, wherein the unstretched synthetic filaments are initially fully stretched under heat with a slight false-twist, after which they are subjected in the same operation to false-twist crimping under heat in the opposite direction and wound up under relaxation. Stretching is carried out at stretching ratios of from 1:3 to 1:6 and at temperatures of from 80 DEG to 180 DEG C.