Terrylene diimide and quaterrylene diimide colorants

A compound of the formula (I)

• wherein
• n is 1 or 2;
• x is 0, 1 or 2;
• each X is C6-C10-aryloxy or C6-C10-aryl, wherein C6-C10-aryloxy is substituted by one substituent R7 and one or more identical or different substituents R7a;
• and wherein C6-C10-aryl is substituted by one substituent R8 and zero;
• R1 and R2, independently of each other, are hydrogen, C1-C24-alkyl, C1-C24-haloalkyl, C3-C24-cycloalkyl, C6-C10-aryl or C6-C10-aryl-C1-C10-alkylene, where the rings of cycloalkyl, aryl, and aryl-alkylene in the three last-mentioned radicals are unsubstituted or substituted with one or more substituents Ra, and where C1-C24-alkyl, C1-C24-haloalkyl and the alkylene moiety of C6-C10-aryl-C1-C10-alkylene may be interrupted by one or more heteroatoms or heteroatomic groups selected from the group consisting of O, S and NRb;
• R3, R4, R5 and R6, independently of each other, are C6-C10-aryloxy or C6-C10-aryl, wherein C6-C10-aryloxy is substituted by one substituent R7 and one or more substituents R7a and wherein C6-C10-aryl is substituted by one substituent Rg and zero;
• R7 is C6-C2M-alkyl;
• each R7a is independently C1-C2M-alkyl;
• Rg is C5-C2M-alkyl;
• each R8a is independently C1-C2M-alkyl;
• each Ra is independently selected from the group consisting of C1-C24-alkyl, C1-C24-fluoroalkyl, C1-C24-alkoxy, fluorine, chlorine and bromine;
• and
• Rb is hydrogen, C1-C2M-alkyl, C3-C24-cycloalkyl, heterocycloalkyl, hetaryl or C6-C10-aryl.