Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 509
Log\sood extract in the usual manner. The color so obtainedis rather fast to washing but is not fast to hght. Exp. 185. Logwood Blue on Cotton.—This is obtained by the use of a copper mor-dant, but is seldom used at the present time, as it is not at all fast. Dj-e a test skein of cotton in a bath… … Fig. 251.—Three-Roll Calender with Expander. (H. W. Butterworth & Sons Co.) Exp. 186.—Dyeing Silk a Pure Black with Logwood.—By pure black is meantone which does not contain any weighting materials. Mordant a test-skein of silkyarn in a bath containing 150 cc. of water and 20 per cent of cutch;…
Dyes and dyeing · Textile fabrics
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