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A New Method for the Dyeing of Mineral Khaki
Author(s) -
Daruwalla E. H.,
Nabar G. M.
Publication year - 1952
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1952.tb02760.x
Subject(s) - dyeing , mixing (physics) , materials science , coagulation , chromium , chemical engineering , precipitation , caustic (mathematics) , pulp and paper industry , chemistry , polymer science , mathematics , metallurgy , composite material , engineering , physics , psychology , quantum mechanics , psychiatry , mathematical physics , meteorology
A new continuous single‐bath process for the dyeing of mineral khaki on cellulosic textiles is described. The process consists in mixing the salts of chromium and iron with caustic soda in presence of an inhibiting agent such as glycerol to obtain a clear solution. The material is then impregnated with the clear solution, to which a coagulating agent which does not operate in the cold is added. The coagulation of the colloid, resulting in the precipitation of the hydroxides, is brought about by steaming the dried impregnated cloth. Dyeings having very satisfactory fastness properties are obtained.