A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing (1919)
Knecht, Edmund, 1861-1925, Loewenthal, Richard, Rawson, Christopher · London : C. Griffin · leaf 151
eaks 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, Y, 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 pressui-e 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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