D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 2/00 (2006.01) D01D 5/00 (2006.01)
Patent
CA 2740545
A method for the spinning of a fibre comprising cellulose nano-fibrils being aligned along the main axis of the fi-bre from a lyotropic suspension of cellulose nano-fibrils, said nano-fibril alignment being achieved through extension of the extruded fibre from a die, spinneret or needle, wherein said fibre is dried under extension and the aligned nano-fibrils aggregate to form a continuous structure.The fibrils used in this method can be extracted from a cellulose-rich material such as wood. The invention also related to acellulose-based fibreobtained according to this method and to a cellulose fibrewhich contains at least 90 % wt of crystallised cellulose.
Linvention concerne un procédé de filage dune fibre comprenant des nano-fibrilles en cellulose alignées le long de laxe principal de la fibre à partir dune suspension lyotrope de nano-fibrilles en cellulose, ledit alignement de nano-fibrilles étant obtenu par extension de la fibre extrudée à partir dune matrice, filière ou aiguille, ladite fibre étant séchée par extension et les nano-fibrilles alignées sagglomérant pour former une structure continue. Les fibrilles utilisées dans ce procédé peuvent être extraites dun matériau riche en cellulose tel que le bois. Linvention concerne également une fibre à base de cellulose obtenue selon ce procédé et une fibre cellulosique contenant au moins 90 % en poids de cellulose cristallisée.
Hernandez Zurine
Hill Callum
Turner Philip
Cassan Maclean
Sappi Netherlands Services Bv
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