The novel yellow metal azo pigments based on at least two metal azo compounds which differ at least in the type of metal have both improved dispersion properties and improved colour strengths and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

The novel yellow metal azo pigments based on at least two metal azo compounds which differ at least in the type of metal have both improved dispersion properties and improved colour strengths and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

The novel pigment preparations containing at least one metal azo pigment A) and at least one aliphatic monocarboxylic acid B) having 10 to 22 carbon atoms are suitable for the colouring of plastics and in this connection feature improved heat stability.

The novel yellow metal azo pigments based on at least two metal azo compounds which differ at least in the type of metal have both improved dispersion properties and improved color strengths and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

The novel yellow metal azo pigments based on at least two metal azo compounds which differ at least in the type of metal have both improved dispersion properties and improved color strengths and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

The novel pigment preparations containing at least one metal azo pigment A) and at least one aliphatic monocarboxylic acid B) having 10 to 22 carbon atoms are suitable for the colouring of plastics and in this connection feature improved heat stability.

Yellow metal azo pigments based on adducts of at least two metal azo compounds provide improved dispersion properties and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

A dye mixture, comprising at least one blue dyeing dye of the formula (1), wherein Q.sub.1 represents a bivalent radical of formula (4a), (4b) or (4c), wherein X.sub.1 denotes chlorine or fluorine, R.sub.1 is hydrogen or C.sub.1-C.sub.8 alkyl, R.sub.2 is hydrogen, C.sub.1-C.sub.8alkyl, C.sub.1-C.sub.4alkoxy or sulfo, Y.sub.1 is vinyl or a radical CH.sub.2CH.sub.2U and U is a leaving group removable under alkaline conditions, R.sub.3 is hydrogen or C.sub.1-C.sub.8alkyl that is unsubstituted or substituted by hydroxy, sulfo, sulfato, cyano, carboxy, C.sub.1-C.sub.4alkoxy or phenyl, r and s are each independently of the other the number 0 or 1, and t is the number 0, 1 or 2, and the sum of r, s and t is 2 or 3 and at least one yellow or red dyeing reactive dye is suitable especially for the dichromatic or trichromatic dyeing or printing of natural or synthetic polyamide fibre materials and yield dyeings or prints having good reproducibility and good all-round fastness properties. ##STR00001##