Improvements in, and relating to, the manufacture and production of threads, filaments and the like from viscose

Abstract

Abstract 273,506. Courtaulds, Ltd., Hegan, H. J., and Hazeley, E. July 19, 1926. Cellulose xanthates, processes for making filaments from.-For the manufacture of hollow filaments from a viscose in which sodium carbonate has been incorporated, there is employed a coagulating bath containing 9-11 per cent sulphuric acid, 10-14 per cent sodium sulphate, 8--14 per cent magnesium sulphate, and 0-8 per cent zinc sulphate, the proportion of metal sulphates being in any case 15-28 per cent of the bath. Glucose or other organic material may be added to the bath. A suitable proportion of sodium carbonate added to the viscose is 1-3 per cent. Specifications 8700/92 20801/00, 7748/10, 15752/10, 1436/11, 24291/14, 143,253, and 189,973 are referred to.

Inventors

No inventors recorded.

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