Copper Complexes of disazo compounds having two substituted 2- hydroxyphenyl diazo component radicals and two 3-methylpyrazol-5-one coupling component radicals

摘要

Complexes of the formula ##STR1## and salts thereof each cation of which is independently a non-chromophoric cation,P P wherein B is --CO--CHCH--CO--, --CO--(CH.sub.2).sub.a --CO--, ##STR2## and each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently hydrogen, halo, nitro, C.sub.1-4 alkyl, C.sub.1-4 alkyoxy, - -NHCO--R.sub.6, --CO--R.sub.7 or --SO.sub.2 --R.sub.8,PP wherein R.sub.6 is C.sub.1-4 alkyl or phenyl,PPR.sub.7 is hydroxy; --OR.sub.9 ; C.sub.1-4 alkyl; phenyl; phenyl substituted by 1 or 2 substituents selected from halo, nitro, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; cyclohexyl; cyclohexyl substituted by 1 to 3 C.sub.1-4 alkyl groups; or --NR.sub.10 R.sub.11, and,PPR.sub.8 is hydroxy; C.sub.1-4 alkyl; C.sub.1-4 alkyl monosubstituted by halo or sulfato; C. sub.2-4 alkenyl; phenyl; phenyl substituted by 1 or 2 substituents selected from halo, nitro, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; cyclohexyl; cyclohexyl substituted by 1 to 3 C.sub.1-4 alkyl groups; or -- NR.sub.10 R.sub.11,PPwith the proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is --SO.sub.2 --R.sub.8,P Peach R.sub.5 is independently hydrogen, C.sub.1-4 alkyl or C. sub. 1-4 alkyl monosubstituted by hydroxy, halo or cyano, andP P each X is independently ##STR3## wherein A is --CHCH-- or -- CH.sub.2 CH.sub.2 --, R.sub.12 is hydrogen or sulfo, andPP R.sub.13 is hydrogen, halo, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,P P and mixtures of such complexes each of which is in free acid form or salt form each cation of which is independently a non- chromophoric cation, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, preferably textile material consisting of or containing cellulose fibers, especially cotton, alone or blended with other suitable textile fibers. The resulting dyed or printed textile material may be aftertreated with a polymeric polybasic amino compound in order to improve the wet fastness properties.