Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 447
, though this is not essential,a further addition is made of about 150—200 cubiccentimetres of red liquor, 16° Tw. (Sp. Gr. 1-08),and 5—7 grams of tin-crystals (SnClg) per kilo, of alum.The sumached yarn while still damp is tramped in theaium solution at a temperature of 40°—50° C., and left Chap.… … Fig. 88.—Clearing Boiler. and about 300 grams of bullocks blood, per kilo, of cottonyarn. If the water contains little or no lime, add alsoground chalk in the proportion of 1 per cent, of theweight of Alizarin (10 per cent.) employed. The yarn isintroduced into the cold solution of the dye-vessel,…
Dyes and dyeing
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