Process for the production of cellulosic fibres

Details Process for the production of cellulosic fibres Process for the production of cellulosic fibres

D - Textiles, Paper

01

F

D01F 2/00 (2006.01) D01D 5/088 (2006.01)

Patent

CA 2413706

The invention relates to a method for producing cellulose fibres. According to said method, a solution of cellulose in a tertiary amino oxide is extruded through the spinning holes of a spinneret and the extruded filaments are fed into a precipitation bath whilst being drawn via an air gap. The filaments are exposed to a gaseous stream in the air gap. The invention is characterised in that the temperature (T) of the gas prior to the contact with the filaments is represented by the formula: 60 ~C < T < 90 ~C.

L'invention concerne un procédé de production de fibres cellulosiques, consistant à extruder une solution de cellulose dans un oxyde d'amine tertiaire à travers les orifices d'une filière et à acheminer les filaments extrudés, en les étirant, dans un bain de régénération par l'intermédiaire d'une fente, où ils sont exposés à un courant gazeux. L'invention est caractérisée en ce que la température (T) du gaz, avant son contact avec les filaments, correspond à la formule : 60 ·C < T < 90 ·C.

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