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 123
They were evolved outof 1 i the old so-called grey dyeing machine on which was produced the lining— grey by successive immersions into logwood iron and rinsing baths, and it of the Indigo dyeing machine consisting of one or more vats, throughwhich the material ran continuously. Particulars as to… … The operation of dyeing Para red on pieces has already been describedon page 230 vol. I. The dyeing apparatus for Black usually consists of large roller cisternscontaining several divisions, between each of which a pair of squeezing rollersis placed. Fig. 32 shows such a machine adapted for Dianil…
Coal-tar colors · Dyes and dyeing
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