Process and device for producing cellulose fibres

Details Process and device for producing cellulose fibres Process and device for producing cellulose fibres

D - Textiles, Paper

01

F

D01F 2/00 (2006.01) D01D 5/06 (2006.01) D01D 5/088 (2006.01)

Patent

CA 2141817

-9- To prepare cellulose fibres, a solution of cellulose in a tertiary amine-oxide is shaped in hot condition to give filaments, the filaments are cooled and then introduced into a precipitation bath in order to precipitate the dissolved cellulose, whereby the shaped solution is exposed to an essentially laminar gas stream (Figure 2a) for cooling before introduction into the precipitation bath.

Pour produire des fibres cellulosiques, une solution de cellulose à l'état chaud est transformée, dans un aminoxyde tertiaire, en filaments qui sont refroidis et introduits dans un bain de précipitation pour précipiter la cellulose dissoute. Avant d'être introduite dans le bain de précipitation, la solution transformée est exposée pour refroidissement à un flux gazeux sensiblement laminaire.

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