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 47
Fig. 2. Quite recently trials have been made to improve the method of yam-dyeingby connecting the separate skeins by means of special hooks and sticks to along broad rope, and dyeing them in a similar manner and in similar machinesas pieces. This method (system E. Thoen) is carried out by the firm… … Fig. 3. Cotton yarn which is to be dyed with basic colours, is mordanted inspecial barges. The boiled and (for light shades) bleached yarn is entered into — 35 — the hot tannin bath — generally in the evening —, worked for a short time,immersed under the surface of the liquid, and left therein…
Coal-tar colors · Dyes and dyeing
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