The chemistry and physics of dyeing : being an account of the relations between fibres and dyes, the formulation of lakes, and the general reactions of colloids, and their solution state (1906)
Dreaper, W. P. (William Porter), 1868-1938 · London : J. & A. Churchill · leaf 104
fect is notreached. Repeated extraction does not remove all the acid,but there are no reliable figures on this subject. The general effect will be better seen in thefollowing curve which is plotted from the abovenumbers. ^^^ 0 . y^ 4 /^ q / ro 1 0 I P 1 1 .—I 20 30 Acid in solution. 40 ABSORPTION… … 20 40 60 Time of immersion. INFLUENCE OF TIME ON ABSORPTION OF ACID. [OHo. 250 CO. : Wool 2.61 grms. : H.,S04.6625 grms. Time unit i hour.] Action of Acids in Dyeing. Acid colours.—Thegenerally accepted theory here is that the sodiumsalts of the sulphonic acids are decomposed, andthe dye acids set…
Dyes and dyeing
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