Artificial dye-stuffs; their nature, manufacture, and uses (1917)
Ramsey, Albert R. J, Weston, H. Claude (Hubert Claude) · London, Routledge; New York, Dutton · leaf 194
inary treatment to free them from impurities,particularly from fatty substances, which not onlyoccur naturally in wool, but are added for certainpurposes during the operations of spinning and weav-ing. In order that no risk may be run of spoiHngdeHcate shades, bleaching of the fabrics is… … i8o THE APPLICATIONS OF D^E-STUFFS To dye fibres thoroughly constant movement isnecessary, and where it is not possible to keep themmoxnng through the liquid means are employed tocirculate the hquid constantly through the fibres, theseoperations being usually carried out in heated vats, aswill…
Dyes and dyeing
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