Garment dyeing and cleaning: a practical book for practical men (1901)
Hurst, George H · London, C. Griffin & Company, Limited · leaf 34
THE TECHNOLOGY OP THE TEXTILE FIBRES. 19 weak solutions of alkalies, or of soap; this process constitutes the operation of boiling off, during which there is a loss of from 25 to 30 per cent, of the weight of the raw fibre, but the latter is left more pliable, softer, and lustrous. Viewed under the… … Fig. 5.—Silk fibres. cemented together side by side by the silk gum or sericin (Fig. 5); these fibres do not appear to possess any structure and have a solid rod-like form. When the silk is boiled off and the gum removed, then the two portions of the silk fibre tend to separate from one another.…
Dyes and dyeing · Cleaning
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