Process for the production of fine denier cellulose acetate...

Details Process for the production of fine denier cellulose acetate... Process for the production of fine denier cellulose acetate...

D - Textiles, Paper

01

F

D01F 2/30 (2006.01)

Patent

CA 2143092

A method for producing ultra-fine denier cellulose acetate fibers that entails spinning a spinning solution containing adequately high amounts of cellulose acetate in acetone wherein the cellulose acetate has a falling ball viscosity of 15 to 70 seconds wherein the spinning is conducted through spinnerettes having holes that have a diameter of less than 36 microns followed by drying at a temperature of 50 to 80° C at a draw ratio of 0.9 to 1.7.

Procédé de production de fibres d'acétate de cellulose à très faibles deniers qui consiste à former une solution a filer contenant des quantités élevées appropriées d'acétate de cellulose dans de l'acétone, l'acétate de cellulose ayant une viscosité à chute de bille de 15 à 70 secondes, et à filer ladite solution en la faisant passer à travers des filières ayant des trous d'un diamètre inférieur à 36 microns, puis a faire sécher les fibres à une températures de 50 à 80 C à un indice d'étirage de 0,9 à 1,7.

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