Beech, Franklin · London, Scott, Greenwood, New York, Van Nostrand co · leaf 56
interfere DYEING MACHINEEY AND DYEING MANIPULATIONS. 45 with the purity of the shade they will take. Then againthe dyes and mordants used in dyeing them are foundto have some action on the wire of the carding enginethrough which they are passed ; at any rate, a card doesnot last as long when… … Fig. 13.—Obermaier Dyeing ilachine. thread. The best plan is undoubtedly to dye the fibre afterit has been carded and partly spun into what is known asslubbing, or sliver. All the impurities have been removed,the wool fibres are laid straight, and so it becomes mucheasier to dye. On the other hand,…
Dyes and dyeing -- Wool
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