. The coal tar colours of Farbwerke vorm. Meister Lucius & Brüning, Hoechst on Main, Germany and their application in wool dyeing . oil).Afterwards the unprepared fibre is dyed in a second bath, according to the directionsgiven above. Djed wool can be subjected to this treatment just as well as white wool, if the follow-ing dyestuffs have been used, which are fast to acids: Indigo MLB, Indigo MLB/R, AlizarineBlue A, DNW, Ceruleine A, SW, Chromogen I, Dianil Fast Red PI I, Milling Yellow O,Milling Scarlet 4R cone. The preparation scarcely affects the milling capacity of the wool, and withstands
. The coal tar colours of Farbwerke vorm. Meister Lucius & Brüning, Hoechst on Main, Germany and their application in wool dyeing . oil).Afterwards the unprepared fibre is dyed in a second bath, according to the directionsgiven above. Djed wool can be subjected to this treatment just as well as white wool, if the follow-ing dyestuffs have been used, which are fast to acids: Indigo MLB, Indigo MLB/R, AlizarineBlue A, DNW, Ceruleine A, SW, Chromogen I, Dianil Fast Red PI I, Milling Yellow O,Milling Scarlet 4R cone. The preparation scarcely affects the milling capacity of the wool, and withstands thepreparatory finishing operations, i. e. milling, washing, crabbing, steaming and carbonizing,most satisfactorily, provided that no strong alkali is used in milling and washing. The djoing to pattern presents no difficulties, and with regard to fastness it is to beremarked that basic dyestufls fixed upon the prepared fibre by means of tannin show verysatisfactory fastness to light, and are in this respect, not inferior to the acid dyestuffs usedfor unprepared wool. Methods of altering the tinctorial properties of wool. 157. 1 St bath: (prepared wool)0,1 /o Brilliant Green crystals extra0,025% Methylene Yellow H10°/o Acetic acid. 2nd bath: (ordinary wool)2% Victoria Rubine OSQo/o Glaubers salt7,5% Acetic acid. The preparation can be carried out upon loose material, slubbing and yarn. By thismeans it is possible therefore to produce goods which in djeing show either melange orweaving effects. The colours come up so clear that many bright and pronounced colour contrasts, e. and red, orange and blue, white and black etc. are obtainable. In order to produce white effects, the harder, lustrous kinds of wool, such as cross-breds,mohairs etc. are preferable for preparation; the finer wools are liable to turn yellowish throughthe tannin preparation, and moreover the latter does not act so efficiently upon them as oncoarser wools. The yellowish hue of tannin treated wool is
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdyesanddyeing, bookye
