USE OF MIXED-CRYSTAL PIGMENTS OF THE QUINACRIDONE SERIES IN ELECTROPHOTOGRAPHIC TONERS AND DEVELOPERS, POWDER COATINGS AND INKJET INKS

摘要

The invention (a) to quinacridone consisting of unsubstituted β- phase quinacridone of the formula (1) 85 to 99% by weight, and (b) to one or more substituted quinacridones of the formula (1) 1 to 15% by weight dongye mix, toner and a developer for electronic photo of the crystal pigments, powder coatings, ink-jet ink, and the use as a colorant in an electret (electret) and non-ferrous fiber filter: ; Wherein ; (a) When used in component, R ¹ and R ² is a hydrogen atom, ; (b) when used as a component, the substituents R ¹ and R ² are same or different, R ¹ is hydrogen, chlorine, or bromine or fluorine atom, or _C 1 -C 6 - C 1 alkyl group which may be substituted -C ₄ -alkyl, C ₁ -C ₄ - alkoxy or carboxamido group; ; R ² is chlorine, or bromine or fluorine atom, or C ₁ -C ₆ - alkoxy, or is a carboxamido group-C ₁ -C ₄ alkyl group which may be substituted - alkyl, C ₁ -C _4.