Hummel, J. J. (John James), -1902, Foster, A. R, Hasluck, Paul N. (Paul Nooncree), 1854-1931 · Philadelphia : David McKay · leaf 105
ANTHRACENE COLOURING MATTERS. 103 water, per kg. = '2*2 lb. of yarn. Wash afterwards. The " clearing boiler ;y used, and shown in Fig. 8, and in plan in Fig 9, is similar in construction to an ordinary low- pressure bleaching kier ; it is, however, made of copper instead of iron, a represents the… … the liquor over the yarn ; F the draw-off pipe. During the boiling, the liquor which collects below the false bottom is forced by the steam up to the top of the puffer-pipe, there to be ejected and spread over the goods. This action is of an intermittent character, since, after each ejection of the…
Dyes and dyeing · Coloring matter
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
