Process for producing polyester fine multifilament yarn and...

Details Process for producing polyester fine multifilament yarn and... Process for producing polyester fine multifilament yarn and...

D - Textiles, Paper

01

F

D01F 6/62 (2006.01) D02G 1/02 (2006.01)

Patent

CA 2478286

A polyester extra fine multi-filament yarn which has a single yarn fineness of 0.9 dtex or less, a total number of single yarns of 100 to 400 and a double refractive index of 0.03 to 0.06; and a method for producing the multi- filament yarn. A method for subjecting a polyester extra fine multi-filament yarn which has a single yarn fineness of 0.9 dtex or less, a total number of single yarns of 100 to 400 and a double refractive index of 0.03 to 0.06 to a stretch and false twist texturing; and a false twist textured yarn produced by the method.

L'invention concerne un fil multifilament extra-fin en polyester présentant une finesse de filament individuel inférieure ou égale à 0,9 dtex, un nombre total de filaments individuels compris entre 100 et 400 et un indice de réfraction double compris entre 0,03 et 0,06. L'invention concerne également un procédé pour produire ce fil multifilament. L'invention concerne en outre un procédé consistant à soumettre un fil multifilament extra-fin en polyester, présentant une finesse de filament individuel inférieure ou égale à 0,9 dtex, un nombre total de filaments individuels compris entre 100 et 400 et un indice de réfraction double compris entre 0,03 et 0,06, à un étirage et à une texturation par fausse torsion. L'invention concerne enfin un fil texturé par fausse torsion produit selon ce procédé.

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