The dyeing of cotton fabrics : a practical handbook for the dyer and student (1901)
Beech, Franklin · London : Scott, Greenwood · leaf 203
PARANITROANILINE RED. 191 when dyed is lifted out, wrung, and then it is well washedwith water, soaped in a bath at 120° F., with a hquorcontaining h oz. soap per gallon, then dried. As the cottonyarn is being passed through the developing bath, the latteris freshened up from time to time by… … Fig. 27.—Dye-tub for Paranitroaniline Red. The beta-naphthol bath does not keep well and in timetends to grow brown, and when this occurs stains areinvariably produced on the cotton. When the yarn or clothhas been prepared with the beta-naphthol, and dried, thedeveloping should be immediately…
Dyes and dyeing
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