Process for trichromatic dyeing or printing of polyamide

A process for dyeing or printing natural and synthetic polyamide material by the trichromatic technique, which comprises the use of a red dye of the formula ##STR97## wherein A is hydrogen, unsubstituted or substituted C.sub.1 -C.sub.4 alkyl, ##STR98## or --SO.sub.2 R.sub.3, wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl, R.sub.2 is unsubstituted or substituted C.sub.5 -C.sub.7 cycloalkyl or unsubstituted or substituted phenyl, and R.sub.3 is unsubstituted or substituted phenyl or unsubstituted or substituted phenoxy, and B is hydrogen, C.sub.2 -C.sub.4 alkanoylamino, C.sub.5 -C.sub.8 cycloalkoxycarbonylamino, C.sub.1 -C.sub.4 alkoxycarbonylamino, C.sub.1 -C.sub.4 alkylsulfonylamino or unsubstituted or substituted phenylsulfonylamino, or a mixture of the red dye of the formula (1) with a red dye of the formula ##STR99## wherein R.sub.4 is methyl or ethyl and R.sub.5 is cyclohexyl or phenyl, together with at least one yellow or orange dye of the formula ##STR100## wherein B.sub.1, B.sub.2 and E.sub.1 are hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, and X is straight chain or branched C.sub.1 -C.sub.4 alkyl or straight chain or branched C.sub.2 -C.sub.4 hydroxyalkyl, or a mixture of at least one yellow or orange dye of the formula (3) with a yellow dye of the formula ##STR101## wherein Z.sub.1, Z.sub.2 and Z.sub.3 are each independently hydrogen, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, and at least one blue dye of the formula ##STR102## wherein one Y is hydrogen or methyl and the other Y is C.sub.2 -C.sub.4 alkanoylamino or C.sub.2 -C.sub.4 hydroxyalkylsulfamoyl and Z.sub.4 is hydrogen or methyl.