PROCESS FOR THE MANUFACTURE OF CELLULOSE-BASED FIBRES AND THE FIBRES THUS OBTAINED

摘要

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.