A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing (1910)
Knecht, Edmund, 1861-1925, Loewenthal, Richard, Rawson, Christopher · London, C. Griffin · leaf 155
reaks which appear in the goods. This is effected in amachine like that shown in Fig. 39. It consists of a framework on which aremounted three pairs of notched rubbing boards, B, underneath which there isa wooden vessel, V, in which the pieces are steeped in a strong soap solution.Of each pair of… … Fig. 39.—Rubbing boards for linen pieces. pair of fluted rollers, R, at the top of the machine, the pressure of the rollersagainst each other being regulated by weights, W. The rubbing is continueduntil the black or yellow stripes are removed. The term mill-washing is applied to an operation…
Dyes and dyeing
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