Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 148
y acid ispresent. The washing is also for the purpose of removing the sulphateof calcium which is precipitated in the cotton during the souring. Thechlorine which is generated in the material during the same process isalso removed by the washing, and care should be taken to eliminate itvery… … Fig. 101.—Bleach House Washer. (Textile-Finishing Machinery Co.) iodide and starch paste, which will give a blue color with a trace of chloride.This test depends on the fact that chlorine liberates iodine from potassiumiodide, and the free iodine combines with the starch to form a compoundwith an…
Dyes and dyeing · Textile fabrics
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