A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing (1910)
Knecht, Edmund, 1861-1925, Loewenthal, Richard, Rawson, Christopher · London, C. Griffin · leaf 161
from one vat to the next tjy means of any suitabledevice. When the scheme is in work all three crates are filled with wool,which is allowed to steep in the wai-m water (or liquor) for some 10 to 20minutes. The ci-ate a is then removed, the liquor being run out of vat C,which is filled with the… … Fig. 40.—Scheme for extracting wool with water. water. In this manner the wool which has already been twice washed in vatsC and B comes into contact in vat A with clean water, which takes out theremaining soluble impurities. At the same time no unnecessary dilution hastaken place, and the…
Dyes and dyeing
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