Mixtures of 1-N-C.sub.3-7 alkyl-5-(4'-chloro-2'nitrophenylozo)-3-cyano-6-hydroxy-4-methylpyrid-2-o ne compounds
AssigneeSandoz Ltd.
InventorUlrich Zirngibl
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Abstract
Mixtures comprising at least two dyes of formula I ##STR1## where R is unsubstituted linear C.sub.3-7 alkyl, with the proviso that at least two different dyes of formula I are each present to the extent of at least 10 mole %, based on the total molar quantity of dyes present, which are useful for dyeing and printing synthetic and semi-synthetic high molecular weight, hydrophobic organic substrates, particularly for rapid dyeing.
Claims15
A mixture comprising at least two dyes of the formula ##STR4## wherein R is unsubstituted n-C.sub.3-7 alkyl, with the proviso that at least two different dyes of said formula are present to the extent of at least 10 mole % each, based upon the total molar quantity of dyes present.
Dependencies are inferred from the claim text.