Process for preparing poly(trimethylene terephthalate) fiber

Details Process for preparing poly(trimethylene terephthalate) fiber Process for preparing poly(trimethylene terephthalate) fiber

D - Textiles, Paper

02

G

D02G 1/20 (2006.01)

Patent

CA 2552662

The present invention relates to processes using poly(trimethylene terephthalate) filaments (2)/yarn. The poly(trimethylene terephthalate) has a number average molecular weight of at least about 26500 and a melt viscosity of at least about 350 Pascals at 250~C and 48.65 per second shear rate. The poly(trimethylene terephthalate) is spun into filaments (2) and the filaments (2) are converged into yarn. The filaments have a denier greater than 1 and the yarn has a denier greater than 210.

La présente invention concerne des procédés utilisant des filaments (2) / un fil de poly(triméthylène téréphthalate). Le poly(triméthylène téréphthalate) a un poids moléculaire moyen d'au moins environ 26,500 et une viscosité à l'état de fusion d'au moins 350 pascals à 250 ·C, ainsi qu'une vitesse de cisaillement de 48,65 par seconde. Le poly(triméthylène téréphthalate) peut être bobiné de manière à former des filaments (2), et les filaments (2) peuvent être regroupés sous forme de fil. Les filaments (2) ont un denier supérieur à 1, et le fil a un denier supérieur à 210.

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