The coal tar colours of Farbwerke vorm. Meister Lucius & Brüning : Hoechst on Main : and their application in dyeing cotton and other vegetable fibres (1907)
Farbwerke vorm. Meister Lucius & Brüning · New York : H.A. Metz · leaf 69
and sodium sulphidehut no other salts, some Turkey red oil may be added in order to increase thefrothing. The material having been packed into the crate, the dye liquid whichmust not reach quite up to its bottom, is heated till it frothes and the crateinserted. The material is now quite covered by… … Although by this process a large amount of steam is used, its simplicityhas so manv advantages that they have contributed to introduce it into practice.Froth dyeing permits the working of lots of 200 lbs of cheeses. The proportion of dye liquid to weight of material is about 1 : 4 or 1 : 5.After…
Coal-tar colors · Dyes and dyeing
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