Title: Exhaust process for the dyeing of synthetic organic textile material

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Abstract: A process for the dyeing by the exhaust process of synthetic organic textile material in navy blue to black shades from halogenated hydrocarbons, which process comprises the use, for dyeing, of at least one disazo dyestuff of formula I ##SPC1## wherein A represents ##SPC2## R.sub.1 represents hydrogen, or an alkyl or alkoxy radical having 1 to 4 carbon atoms, and R.sub.2 represents the same as R.sub.1, or the-CF.sub.3 group, in admixture with the monoazo dyestuff of formula II ##SPC3## or with the anthraquinone dyestuff mixture of formula III ##SPC4## wherein R.sub.3 represents a mixture of H and -CH.sub.2 --CH.sub.2 -CH.sub.2 --CH.sub.2 --OH, and when A in formula I represents ##SPC5## In addition to a small amount of the disazo dyestuff of formula IV ##SPC6## or of formula V ##SPC7##


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