Mixtures of optical brighteners

Mixtures of optical brighteners consisting of 0.05-0.95 parts by weight of a compounds of the formula 1 ##STR101## in which A denotes a o- or p-cyanophenyl group, and 0.95 to 0.05 parts by weight of one or more compounds of the formulae 2, 3, 4, 5 or 6 ##STR102## in which n denotes 0 or 1, X denotes an oxygen or sulfur atom, R.sub.1 and R.sub.2 denote identical or different radicals from the group comprising hydrogen, fluorine or chlorine atoms, phenyl, trifluoromethyl, C.sub.1 -C.sub.9 alkyl, alkoxy, dialkylamino, acylamino, cyano, carboxyl, carbalkoxy, carboxamide, sulfonic acid, sulfonamide or sulfonic acid alkyl ester, it being possible for two adjacent radicals R.sub.1 and R.sub.2 together also to represent a benzo ring, a lower alkylene group or a 1,3-dioxapropylene group, B denotes cyano, a group of the formula --COOR.sub.11 or CONR.sub.11 R.sub.11 in which R.sub.11 denotes hydrogen, C.sub.1 -C.sub.18 alkyl, cycloalkyl, aryl, alkylaryl, halogenoaryl, aralkyl, alkoxyalkyl, halogenoalkyl, hydroxyalkyl, alkylamino-alkyl, carboxyalkyl or carboalkoxyalkyl, or two alkyl or alkylene radicals with the meaning of R.sub.11 can also form, together with the nitrogen atom, a morpholine, piperidine or piperazine ring, or B denotes a group of the formula ##STR103## in which R.sub.12 and R.sub.13 denote identical or different radicals from the group comprising hydrogen, fluorine or chlorine atoms, phenyl, alkyl, alkoxy, acylamino, cyano, carboxyl, carbalkoxy, carboxamide, sulfonic acid, sulfonamide or sulfonic acid alkyl ester, it being possible for two adjacent radicals R.sub.12 and R.sub.13 together also to represent an alkylene group, a fused benzo ring or a 1,3-dioxapropylene group, or B denotes a group of the formulae ##STR104## in which R.sub.14 denotes a straight-chain or branched alkyl group having 1-18 C atoms and preferably 1-6 C atoms, which can be substituted by hydroxyl groups, halogen atoms or alkoxy, dialkylamino, alkylmercapto, chloroaryloxy, aryloxy, arylmercapto or aryl radicals, it being possible in the case of the dialkylamino alkyl groups for the two alkyl groups together also to form a morpholine, piperidine or piperazine ring, or R.sub.14 denotes a group of the formula --(CH.sub.2 CH.sub.2 O).sub.n --R, in which n is 1, 2 or 3 and R is H, alkyl, dialkylaminoalkoxyalkyl or alkylthioalkoxyalkyl, it being possible for the dialkyl groups in dialkylaminoalkoxyalkyl together to form a piperidine, pyrrolidine, hexamethyleneimine, morpholine or piperazine ring, or R.sub.14 denotes a radical of the formula ##STR105## R.sub.22 denotes a hydrogen atom, a triphenylmethyl group or a lower alkyl radical, which is optionally substituted by a lower carbalkoxy, carboxamido, mono- or di-alkylcarboxamido, carboxyl or benzoyl group, and R.sub.23 denotes a cyano group or a group of the formulae ##STR106## in which R', R" and R"' denote a hydrogen atom, a lower alkyl radical or a phenyl radical, and it being possible for the lower alkyl radicals to be substituted by hydroxyl, lower alkoxy, lower dialkylamino or lower trialkylammonium groups and for the phenyl group to be substituted by halogen atoms or lower alkyl or lower alkoxy groups, and in which R" and R"' together can also form a saturated divalent radical, Y denotes O, S or N-R, in which R is H or (C.sub.1 to C.sub.4)-alkyl, or B denotes a group of the formula ##STR107## in which R.sub.15 denotes a phenyl ring, which can be substituted by one or two chlorine atoms, one or two alkyl or alkoxyalkyl groups or one phenyl, cyano, carboxyl, carbalkoxy, carboxamide, sulfonic acid, sulfonamide or sulfonic acid alkyl ester group, R.sub.3 and R.sub.4 can be identical or different and denote hydrogen, alkyl, cycloalkyl, alkoxy, hydroxyalkoxyethyl, halogenoalkyl, aralkyl, aryl or N,N-di-alkylamine, or R.sub.3 and R.sub.4 together form a five-membered heterocyclic radical having 1 to 3 hetero-atoms, preferably N atoms, R.sub.5 denotes straight-chain or branched alkyl, alkoxyalkyl, dialkylaminoalkyl or a radical of the formula ##STR108## in which R.sub.16 is hydrogen, C.sub.2 -C.sub.8 -alkanoyl, benzoyl or a radical of the formula R.sub.18 NHCO-- or R.sub.19 OCO-- and R.sub.17 is hydrogen, alkyl or phenyl, R.sub.18 is alkyl, phenyl, halogenophenyl or tolyl and R.sub.19 is C.sub.1 -C.sub.8 -alkyl, alkoxyalkyl, cyclohexyl, benzyl, phenylethyl or phenyl which is optionally substituted by non-chromophoric substituents, or R.sub.5 denotes a radical of the formula ##STR109## in which R.sub.20 is C.sub.1 -C.sub.10 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkinyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.8 -alkylamino or dialkylamino, phenoxymethyl, phenyl, tolyl, benzyl or phenylethyl and R.sub.21 is C.sub.3 -C.sub.10 -alkyl, which can be substituted by phenyl, hydroxyphenyl, methoxy or dimethoxy, R.sub.6 denotes an aryl radical, which is optionally substituted by non-chromophoric substituents, or denotes a 1,2,4-triazol-1-yl-phenyl, 1,2,3-triazol-4-yl-phenyl, 1,2,3-triazol-3-yl-phenyl or 1,2,3-triazol-2-yl-phenyl radical, which can optionally be substituted by 1 or 2 C.sub.1 -C.sub.3 -alkyl or oxalkyl groups or by oxaryl, oxalkenyl or oxalkanoyl, or R.sub.6 denotes a heterocyclic ring having 1-3 hetero-atoms, preferably N or 0, which can be substituted by alkyl, alkoxy, halogen, aryl or halogenoaryl, or R.sub.6 denotes a 1-oxa-2,4-diazol-5-yl radical, which can be substituted by benzyl, alkoxyphenyl, styryl, halogen, alkoxy or a further heterocyclic group, or R.sub.6 denotes a benzimidazol-1-yl, benzimidazol-2-yl, benzthiazol-1-yl or benzthiazol-2-yl radical, which can be substituted by non-chromophoric substituents, R.sub.7 denotes hydrogen, alkyl, alkoxy, aryl or a five-membered heterocyclic radical which has 1-3 N or 0 hetero-atoms and is bonded via a nitrogen atom and can be substituted by alkyl, aryl, hydroxyl, oxalkyl, oxalkenyl, oxaryl, oxarylalkyl, oxalkoxycarbonyl, oxcarbamoyl, oxepoxyalkyl, styryl or halogenostyryl, a fused phenyl, naphthyl or phenanthryl ring or a fused group of the formulae ##STR110## and the aromatic rings in the fused groups can also be substituted by alkyl or alkoxy and X is oxygen, NH or N-alkyl, R.sub.8 represents a polycyclic, aromatic radical having at least three fused rings, which optionally carry non-chromophoric substituents, R.sub.9 represents an amino group, which is substituted by one or two alkyl, hydroxyalkyl, acyl or phenyl groups, it being possible for the phenyl group to contain one or more non-chromophoric radicals and for two alkyl groups, together with the nitrogen atom of the amino group, to form a pyrrolidine or piperidine ring or, with the inclusion of a further nitrogen or oxygen atom, a piperazine or morpholine ring, or R.sub.9 represents an alkoxy, hydroxyalkoxy, acyloxy, alkylthio or carbalkylmercapto group, R.sub.10 independently of R.sub.8 has the same meaning as R.sub.9 and in addition can denote a chlorine atom and V denotes a group of the formulae ##STR111##