Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 436
ntains hydrosiilphite and caustic soda, which cannot be squeezedout in this case after dyeing, and consequently uneven colors are liable toresult.* In continuous machines the pieces are run through successive vats andexposed to the air for oxidation between the dips. Usually four to sixvats are… … Fig. 218.—Dyeing Machine for Indigo and Vat Dyes. (Zittauer.) depth of color may be regulated by varying the speed of running and thenumber of immersions. It is always preferable to enter the goods in thewet state. By drying the goods first after dyeing and then souring andwashing heavier shades of…
Dyes and dyeing · Textile fabrics
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