Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 291
Chap. XII. MACHINERY FOR UNSPUN WOOL. 277 must be a continual motion given to the textile materialsduring tlie mordanting and dyeing processes, so that eachportion may be equally presented to tlie action of themordant or colouring matter. This is effected either byhand or by machine. The operations… … Fig. 67. —McNaughts Wool-Drying Machine (Section). are finally dried. Finishing processes are not consideredin this manual. 225. Unspun Wool.—Dyeing Macliinertj. The dye^vessel employed for loose-wool consists of a large opencylindrical cast-iron pan, similar to the indigo-vat shownon p. 305. It is…
Dyes and dyeing
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