Fraps, George Stronach, 1876- · New York Macmillan · leaf 243
oughly soaped tosoften the material. Soaping also neutralizes any tracesof mineral acids which may not have been washed out. Defects in Dyeing Aniline Black. — Riibbmg off of thecolor is due to too rapid oxidation in the solution. Green-ing is due to imperfect oxidation of the aniline. Tejideringis… … INSOLUBLE COLORS 22/ Indigo. — Dyeing with indigo requires two operations :(i) preparing the indigo solution, or setting the vat, as itis called; (2) dyeing proper. Application to Cotton. — Three methods for preparing anindigo vat for cotton are in use : namely, the lime-copperasvat, the zinc vat,…
Dyes and dyeing
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
