Cyclopedia of textile work : a general reference library on cotton, woolen and worsted yarn manufacture, weaving, designing, chemistry and dyeing, finishing, knitting, and allied subjects (1911)
American School (Lansing, Ill.) · Chicago : American school of correspondence · leaf 51
al fibre, while the outer liquid furnishes the silk gum thatcements the two fibres together. It is this latter portion thatis removed during the silk boiling, or degumming, as it is oftencalled. The cocoons are thus made of a continuous double fibre rarelybroken, and from 1,200to 4,000 feet, or… … 41 34 TEXTILE CHEMISTRY AND DYEING. caterpillar to the chrysalis state is complete, the cocoons are col-lected. A few are selected for breeding- purposes and placed in aroom kept at a temperature of about 20° C. At the end of threeweeks the silk moth has been formed in the cocoon, and by emittinga…
Textile fabrics · Textile industry
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