Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 337
hile in the third method noactual dyestuff at all is employed, but the coloring matter is formed from its constitu-ents. In the first method the substantive dye used furnishes the base of the diazo body;whereas in the second method the dyestuff plays the role of the developer with whichthe diazo… … Fig. 169.—Apparatus for ImpregnatingYarn with Beta-Naphthol. COUPLING PROCESS OF DYEING 319 shades (3 to 4 per cent dyeings) these quantities are increased to 5 to7 gallons of diazotized paranitraniline solution, 1 lb. of soda ash, and6 ozs. sodium acetate. The dyeings obtained by this process…
Dyes and dyeing · Textile fabrics
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