VERFAHREN ZUR HERSTELLUNG VON CELLULOSEFAEDEN BZW. -FASERN SOWIE EINRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

摘要

1. A process for the production of cellulose threads or fibres from a solution of cellulose in dimethyl-acetamide (DMA) and/or 1-methyl-2-pyrrolidinone and lithium chloride by wet spinning, in which the cellulose solution is forced through spinning jets and the threads which are thereby formed are pulled through a precipitation bath and then stretched, characterized in that an increasing concentration of precipitating agent is established in the precipitation bath along the region where the threads are pulled through and the threads are drawn out of the precipitation bath are subjected to a secondary treatment in an alkaline steeping bath at the end of their stretching treatment.