Methine and azamethine dyes based on trifluoromethylpyridones

A pyridone dye of the formula ##STR18## wherein R.sup.2 is cyano, carbamoyl, C.sub.1-6 -alkoxycarbonyl or C.sub.1-4 -alkanoyl;

• R.sup.3 is C.sub.1-13 -alkyl;
• phenyl;
• substituted phenyl;
• or a radical of the formula:
• NE.sup.1 E.sup.2, wherein E.sup.1 and E.sup.2 are identical or different, and, independently of one another, are each hydrogen, C.sub.1-13 -alkyl, substituted C.sub.1-13 -alkyl, or E.sup.1 and E.sup.2 are each C.sub.5-7 -cycloalkyl, phenyl, substituted phenyl, pyridyl, substituted pyridyl, C.sub.1-13 -alkanoyl, substituted C.sub.1-13 -alkanoyl, C.sub.1-13 -alkoxycarbonyl, C.sub.1-13 -alkylsulfonyl, substituted C.sub.1-13 -alkylsulfonyl, C.sub.5-7 -cycloalkylsulfonyl, phenylsulfonyl, substituted phenylsulfonyl, pyridylsulfonyl, substituted pyridylsulfonyl, benzoyl, substituted benzoyl, pyridylcarbonyl or thienylcarbonyl;
• or E.sup.1 and E.sup.2, together with the nitrogen atom linking them, are unsubstituted, C.sub.1-4 -alkyl-substituted succinimido or C.sub.1-4 -alkyl-substituted phthalimido;
• Z.sup.3 and Z.sup.4, independently of one another, are each C.sub.1-8 -alkyl unsubstituted or substituted by C.sub.1-4 -alkoxy, C.sub.1-4 -alkoxycarbonyl or phenyl or are each cyclopentyl, cyclohexyl or prop-1-en-3-yl;
• and
• Z.sup.6 is branched C.sub.3-10 -alkyl or phenyl.