A manual of dyeing with the dyestuffs of the Cassella color company, New York .. (1911)
Cassella Color Co. (New York, N.Y.) · New York, Cassella color co. · leaf 88
vidth of the vessels, strips of cotton cloth being wrappedround the part on which the yarn rests. Instead the rods being wrapped round with cloth, theymay, in order to prevent them from rusting, be rubbedeach evening with a rag soaked with mineral oil, or washedeach time after use in water… … In place of bent iron rods, straight sticks also may beused; in such case it is however necessary to increase thequantity of sodium sulphide and to turn the yarn more fre-quently, or to immerse it. In the latter case it is best afterentering to give the yarn 4 to 6 successive turns, immersingit…
Dyes and dyeing
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