Process for producing shaped cellulose bodies

Details Process for producing shaped cellulose bodies Process for producing shaped cellulose bodies

D - Textiles, Paper

01

F

D01F 2/00 (2006.01) C08B 1/00 (2006.01) C08B 16/00 (2006.01) C08J 5/18 (2006.01)

Patent

CA 2155550

A process is disclosed for producing shaped cellulose bodies, in particular foils and fibres. A solution of cellulose in a tertiary amine oxide is extruded through a shaping device, for example a spinning nozzle, and the extruded shaped body is drawn as it is led into a aqueous regenerating bath, in which it coagulates. The coagulated shaped body is then washed with an aqueous washing liquid. The process is characterised in that the regenerating bath used for coagulating and/or the liquid used for washing the shaped body contain a dissolved surfactant.

Selon un procédé de fabrication de corps moulés en cellulose, notamment des feuilles et des fibres, on extrude une solution de cellulose dans un oxyde d'amine tertiaire à travers un dispositif de façonnage, par exemple une filière, et on étire le corps extrudé en l'amenant à un bain de régénération dans lequel il se coagule, puis on lave le corps moulé coagulé avec un liquide aqueux de lavage. Le procédé se caractérise en ce que le bain de régénération utilisé pour provoquer la coagulation et/ou le liquide de lavage contiennent un agent tensioactif en dissolution.

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