fausse torsion
- Domaine
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- textile filature
- Dernière mise à jour
Terme privilégié :
- fausse torsion n. f.
Traductions
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anglais
Auteur : Office québécois de la langue française,Définition
In processing a heat-set stretch yarn it is passed through a "false-twist" spindle and twisting begins at this time. When emitted from the spindle the twist is automatically removed, hence, the term, false-twist. The yarn, however, retains "a memory" of its twisted position or torque and seeks to return to that position. It is therefore wound or taken-up under tension to prevent it from curling. The torque in the yarn is balanced later on in processing by doubling it with another yarn whose "remembered" twist goes in the opposite direction; thus, a yarn with an "S-twist" and a "Z-twist".
The major process used in texturizing filament yarns. A rotating spindle twists the yarn, which is then set in a heater-box or tube, after which it is untwisted.Termes :
- false twist
- false-twisting
Terme associé :
- mock twist