Navy blue mixtures of disperse mono-azo dyes for cellulose acetate
AssigneeBASF SE
InventorsUdo Bergmann, Helmut Degen, Guenter Hansen, Reinhold Krallmann, Hans Weber
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Abstract
Mixtures of dyes of the formula I ##STR1## where X is chlorine or bromine, Z is hydrogen, methyl, ethyl, C.sub.1 -C.sub.4 -alkoxy or acetylamino, R is C.sub.1 -C.sub.4 -alkyl, R.sup.1 and R.sup.2 independently of one another are each allyl or methallyl or are each C.sub.1 -C.sub.6 -alkyl which is unsubstituted or substituted by hydroxyl, C.sub.1 -C.sub.4 -alkoxy or alkanoyloxy, or R.sup.1 and R.sup.2 together with the nitrogen atom are morpholino or tetra-, penta- or hexamethyleneimino, and one of the radicals R.sup.1 and R.sup.2 may furthermore be hydrogen.
Claims5
A dye mixture which contains at least two different dyes of the formula ##STR10## wherein X is chlorine or bromine,
- Z is methyl, methoxy, ethoxy or acetylamino,
- R is methyl or ethyl and
- R.sup.1 and R.sup.2 independently of one another are hydroxyethyl, hydroxypropyl, acetoxyethyl, acetoxypropyl, propionyloxyethyl or propionyloxypropyl.
Dependencies are inferred from the claim text.