Cassella Color Company, author · New York : Cassella Color Company · leaf 9
case of light shades treated with perborate. The dyeing of further lots is commenced with sodium sulphide and caustic soda lye alone, one-half to two-thirds of the quantities previously used being sufficient, varying with the shade to be dyed; in the same way as in the first bath, 4 to G passages… … The first two vats contain the dye liquor, the third and fourth serving for the rinsing. Before the rinsing, the goods may he taken for oxidation over the guiding rollers arranged above the dyeing and rinsing vats. This oxidation is at all times to he recommended for light shades, while for deep…
Dyes and dyeing · Color in the textile industries
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
