Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 117
a hydro-carbonand not a glyceride, is unsaponifiable. Experimentsby C. Roth seem to show, however, that this view iseiToneous. a. StretcJting of Yarn.—Those yams which are hardtwisted requii-e this preliminary pix)cess in order toremove their curly appearance and to prevent them from^blinking… … Fig. 32.—Yam-stretchiDg Machine. two horizontal bars A, b, one above the other, eachfitted ^vith a series of metal pegs or arms c, on whichthe hanks are suspended. The lower bar b is fixed,while the upper one a is capable of being moAed up 104 DTEIXG OF TEXTILE FABRICS. [Chau TIL
Dyes and dyeing
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