D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
D01D 5/24 (2006.01) D01F 6/60 (2006.01)
Patent
CA 2316819
The invention concerns a multifilament textile yarn whereof the filaments or staples have a hollow section, a method for making said hollow yarn, and textile surfaces obtained from said yarns. More particularly, it concerns a method for making multifilament yarns comprising hollow filaments obtained by melt-drawing of a polyamide composition having a yarn count less than 10 dtex for each staple, and whereof the staples with hollow section have a central hollow surface representing at least 5 % of the total surface in said staple transverse section. The invention is characterised in that the yarn has an USTER coefficient (U %) less than 3 % and a number of staple with arc-shaped section less than 30 % of the total number of staples with hollow section. The flat yarns, twisted and textured are used in particular for making textile surfaces, such as woven or knitted fabric.
La présente invention concerne un fil textile multifilamentaire dont les filaments ou brins ont une section creuse, un procédé de fabrication de ce fil creux, et les surfaces textiles obtenues avec un tel fil. Elle concerne plus particulièrement la fabrication de fils multifilamentaires comprenant des filaments creux obtenues par filage en fondu d'une composition en polyamide de titre au brin inférieur à 10 dtex, et dont les brins de section creuse présentent une surface vide centrale représentant au moins 5 % de la surface totale de la section transversale dudit brin, caractérisé en ce que le fil possède un USTER coefficient (U %) inférieur à 3 % et un nombre de brin à section en forme d'arc de cercle inférieur à 30 % du nombre total de brins à section creuse. Les fils plats, retordus ou texturés sont notamment utilisés pour la fabrication de surfaces textiles, telles que tissu ou tricot.
Pellerin Vincent
Roggenstein Walter
Schaffner Uwe
Nylstar
Robic
LandOfFree
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