Method of producing heat-resistant crimped yarn

Details Method of producing heat-resistant crimped yarn Method of producing heat-resistant crimped yarn

D - Textiles, Paper

02

G

D02G 3/26 (2006.01) D02G 3/04 (2006.01) D02G 3/44 (2006.01)

Patent

CA 2422396

The present invention related to a method for producing a heat-resistant crimped yarn comprising twisting yarn of a heat-resistant high functional fiber, twist-setting the twisted yarn by heat treatment and untwisting the twist-set yarn, wherein a snarl value of the twist-set yarn is not more than 6.5, and provides a method for producing a heat-resistant crimped yarn which is practical in point of the productivity, the necessary equipment and the production costs.

L'invention concerne un procédé de fabrication d'un fil frisé consistant à tordre des filaments fibreux thermorésistants de qualité supérieure, à effectuer une fixation de torsion par traitement thermique, puis à opérer une détorsion. Ce procédé de fabrication d'un fil frisé se caractérise en ce que la valeur de vrillage des filaments après la fixation de torsion est inférieure ou égale à 6,5. Ledit procédé permet ainsi de fabriquer un fil frisé thermorésistant présentant des avantages en termes de production ou de coût.

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