Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 378
acid is added in these cases of after-mordanting in order to cor-rect the hardness of the water, and where this is considerable the amount ofoxalic acid must be correspondingly increased. The presence of coppersurfaces should be avoided in the dyebath, either wooden or tinned coppervessels being… … Fig. 185.—Dryer and Foulard. with a coal-tar mordant dyestuff. Bluestone is usually employed in con-junction with the iron salt. The following is an example of this process:Dye with 2^ per cent of oxalic acid, 3 per cent of Palatine Black 4B and10 per cent of Logwood extract; after boiling for one…
Dyes and dyeing · Textile fabrics
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