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 64
is approximately reached. In orderto test the shade, only one stick is passed through the vat until it is hit. The testingmust be done with wet material against a wet specimen. It is advisable to allow the yarns to lie some time after dyeing, if necessary overnight, then to remove the acid and to…
Coal-tar colors · Dyes and dyeing
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