A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing (1919)
Knecht, Edmund, 1861-1925, Loewenthal, Richard, Rawson, Christopher · London : C. Griffin · leaf 85
t wooden sticks may also be used, although levelshades are produced with greater ease on bent sticks. The yarn is usuallyentered into the boiling bath and given a few turns; then the steam is shutoff and the yarn turned about every five minutes. Some colours, principallythe bright blues, are dyed… … Fig. 57. SULPHIDE OR SULPHUR COLOURS. 451 in a cold bath; it is only necessary to prepare the first bath much strou-erwith dyestuff and sodium sulphide, the cold liquor being exhausted less.)After working the yarn for three-quarters to one hour, each stick full ofyarn is given a few rapid turns,…
Dyes and dyeing
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