Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 203
served in the dyeing of shoddy goods where the fiber may havebeen treated with acid solutions, 184 APPLICATION OF ACID DYES TO WOOL stannous chloride (Avhich is frequently present in the stannic compound),as this reduces and destroys many of the acid dyes (the azo colors). Theaddition of alum (G to… … Fig. 130.—Dyeing Machine for Loose Stock. (Obermaier.) As explained bj^ the <>;enoral theory of dyeing;, the sulphuric acid is used forthe purpose of liberating the color-acid of the dyestuff * so that it may * Apparent!}^ the acid exerts other influences besides the one of simplj-…
Dyes and dyeing · Textile fabrics
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