Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 396
lopment of the color, and the dyestuff appears to act in thiscase as if it were simply dissolved as such in the sodium sulphide. Thethird possibility of the dyestuff combining with the sodium sulphide receivessome measure of support in that the dye is precipitated from solution bythe addition of… … Fig. 194.—Large Size Squeezer for Skein Yarns. The exact chemistry of this entire matter is yet to be worked out, asnothuig very definite has been determined. The sulphur dyes are best dissolved in iron or wooden vessels by pour-ing over them hot water containing a part of the sodium sulphide…
Dyes and dyeing · Textile fabrics
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