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Effect of mordant bleaching on the optical and mechanical properties of black human hair
Author(s) -
Oh K.,
Park M.,
Kang T.
Publication year - 1997
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.1478-4408.1997.tb01908.x
Subject(s) - mordant , citric acid , chemistry , oxalic acid , dyeing , nuclear chemistry , pulp and paper industry , inorganic chemistry , organic chemistry , engineering
Decoiorisation of black human hair containing an excessive amount of melanin was carried out by alkaline peroxide bleaching under different mordanting conditions. The effect of iron mordanting methods on the optical, mechanical and tactile properties of bleached fibre was investigated. Sequestering agents, such as citric acid and oxalic acid, or reducing agents including phosphorous acid and sodium bisulphite, were employed to improve the selective absorption of iron into the fibre. The initial rate of bleaching and tactile properties were significantly affected by the amount of iron in the fibre which, in turn, was dependent on the type of mordanting auxiliary employed. Among the various mordanting auxiliaries, citric acid was the most efficient agent for the industrial application since it provided good lustre, smooth handle, and relatively high strength retention to the bleached fibre with good bleaching efficiency.