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

Abstract

Abstract 282,973. Courtaulds, Ltd., Hegan, H. J., and Hazeley, E. Dec. 20, 1926. Cellulose xanthates, processes for making filaments from. - Artificial textile threads, filaments, bands, &c. are made by projecting into a bath containing sulphuric acid and 25 per cent or more of sodium sulphate, a viscose containing 2.4 per cent of added sodium carbonate, and sufficient caustic soda, say 7 per cent or more, so that the proportion of alkali radicle is considerably greater than the proportion of carbonate radicle, say in the ratio of 4: 1. The threads &c. show little or no inflation, are less lustrous than ordinary viscose silk, and possess a certain roughness on the exterior which gives them a felting or locking property like that of wool. 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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