Pigments of the quinacridonequinone series, processes for their preparation and their use

Pigments of the quinacridonequinone series consisting of 98-20 mol percent of a quinacridonequinone of the general formula (1) (1) in which R denotes a hydrogen or chlorine atom or a methyl or carbonamide group and m and n are 1 or 2, and 1-65 mol percent of a quinacridone of the general formula (2) (2) in which R, m and n have the abovementioned meaning, and 1-15 mol percent of one or two acridone derivatives of the general formulae (3) and/or (4) (3) (4) in which X denotes O or NH and R can be identical or different and, like m and n, has the abovementioned meaning, the added compounds of the general formulae (2), (3) and/or (4) being predominantly incorporated into the crystal lattice if the quinacridonequinone of the general formula (1), processes for their preparation and their use for coloring synthetic and naturally occurring materials.