METHOD FOR THE PRODUCTION OF MULTICOMPONENT CELLULOSE FIBERS

摘要

The aim of the invention is to create a method for producing multicomponent cellulose fibers that have a reduced swelling capacity and an increased wet abrasion resistance. Said aim is achieved by dispersing 75 to 25 percent by volume of cellulose with 25 to 75 percent by volume of at least one additional fiber-forming polymer component in a water-containing ionic liquid and adding stabilizers, eliminating as much of the water as possible by means of shearing, temperature, and a vacuum, shaping the obtained microscopically homogeneous solution to fiber/fiber bundle through at least one spinning nozzle, guiding the same through an air-conditioned gap while drawing the same, precipitating the oriented jets of solution by treating the same with a tempered solution which can be mixed with the ionic liquid while representing a precipitating agent for the cellulose and the additional fiber-forming polymer component so as to subject the same to spinodal decomposition, separating the oriented jets of solution from the precipitation bath, and then finishing the same.