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The Oxidative Dyeing of Keratinous Protein Fibres I–The Dyeing of Wool with the Colourless 2: 4: 5–Trihydroxytoluene
Author(s) -
BURTON H.,
STOVES J. L.
Publication year - 1950
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.1478-4408.1950.tb02665.x
Subject(s) - dyeing , wool , ferrous , chemistry , aqueous solution , pigment , polymer chemistry , solvent , metal , stain , nuclear chemistry , materials science , staining , organic chemistry , composite material , medicine , pathology
It is shown that wool fibres can be dyed various shades of brown by aqueous solutions of the colourless 2: 4: 5–trihydroxytoluene. Simultaneous treatment with various metal salts causes a pronounced darkening in the shade, which becomes almost black with ferrous iron. The brownish–black stain obtained by application of the trihydroxytoluene to living skin is attributed to the formation of a co–ordination complex derived from a thiohydroxytoluquinone and iron; a similar process can thus be separated into two distinct stages with wool.