Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 444
ed and the Indigo recov-ered bj- treatment with hydrochloric acid. * According to the Badische Co. bright reddish shades may be obtained by pre-viously treating the cotton goods with bone ghie. For this purpose the goods arerun in a solution containing 2 to 5 parts of glue per 1000 parts of water,… … 426 THE VAT DYES 6. The Zinc Vat.—The principle of this vat depends on the propertyof zinc dust to react with slaked lime to form a calcium zincate and hydro-gen: Zn+Ca(0H)2 = Zn02Ca+H2. The hydrogen thus liberated reduces the Indigo to indigo-white, whichdissolves in the excess of lime present.…
Dyes and dyeing · Textile fabrics
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