Hellot, Jean, 1685-1766 · London : Reissued by Scott, Greenwood · leaf 262
this boiling it is neces-sary to harr often, that is by means of a barr or pole (as in C,Plate 11. Fig. 2), to move the bags one over the other, so as thatthe undermost be brought to the top of the liquor to preventthem from sticking to the bottom of the boiler. This motionis also requisite to make… … FOR BOILING OF SILKS INTENDED TO BE DYED 241 For Boiling of Silks intended to be Dyed In the boiling of silk for common colouis, twenty poundsof soap is required for every hundred pounds of raw silk, andthe boiling is then the same as in the preceding operation,with this difference only, that as…
Dyes and dyeing
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