The coal tar colours of Farbwerke vorm. Meister, Lucius & Brüning, Hoechst on Main, Germany, and their application in wool dyeing (1910)
Farbwerke vorm. Meister Lucius & Brüning · New York, H. A. Metz · leaf 22
s, 4°/0 Sulphuric acid, and, according to shade, 0,01 to 0,2%Fast Acid Blue R. The yarn is entered cold, the liquid gradually raised to 140° F, and theshade obtained by working for 1 hour at this temperature. Pearl shades obtained in thisway answer all requirements as regards wearing, milling and… … Grey and Drab. For fast Grey and Drab shades on worsted yarn, for mens suitings, it is advisable topoint the yarns in a Hydrosulphite vat and then dye them to shade with Fast Red, Yellowand Brown dyestuffs. In this way shades are obtained which excel in every other combi-nation as regards fastness…
Dyes and dyeing
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