Topic: viscose process

viscose process , method widely used for the commercial preparation of rayon . Cellulose, prepared from either wood pulp or, less commonly, cotton linters, is treated with sodium hydroxide (an alkali) and then with carbon disulfide, the resulting product being a substance called cellulose xanthate. Dissolved in sodium hydroxide, this alkaline cellulose xanthate forms a thick solution called viscose. Rayon yarn is made by forcing the viscose through tiny openings in a spinneret into an acid solution, which coagulates it in the form of fine strands. Most of the rayon manufactured today is produced... Read more