Blue azo dyestuff mixture for strong blue color on hydrophobic fibers

摘要

The dyestuff mixture contains at least one dyestuff of the formula I ##STR1## and at least one dyestuff of the formula II ##STR2## wherein X and Y denote chlorine or bromine,PPR.sup.1 and R.sup.5 denote methyl or ethyl,PPR.sup.2 and R.sup.6 denote methyl, ethyl, n-propyl or i-propyl andPPR.sup.3, R.sup.4, R.sup.7 and R.sup.8 denote, for example, C.sub.1 - to C.sub.11 - alkyl, in the weight ratio of I:II=(5 to 95):(95 to 5), and is, for example, outstandingly suitable for dyeing synthetic fibres.