Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 464
tion(12° Tw.) and 50 grams of hydrosulphite powder (Blankit T) dissolved in 200 cc. ofwater. Stir gently and keep the temperature at about 110° F. In a short time theliquor should be of a clear amber-yellow color with a film of blue on the top. Tlio liquidnow contains indigo-white and serves as a… … Fig. 227.—Dyeing Machine for Slubbing. (Simonis.) derivatives. It is a strong rsducing agent and converts the indigo-blue into indigo-white. In place of this prepaisd form of hydrosulphite the solution of sodium hydro-sulphite itself may be used, in wlich case it may be prepared as follows: 130…
Dyes and dyeing · Textile fabrics
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