Patent ID: 7045638

Claim:
A pigment preparation comprising: a) at least one organic base pigment, and b) at least one pigment dispersant of the formula (I): in which Q is a radical of the diketopyrrolopyrrole compound of the formula (Ia) s is a number from 0.1 to about 1.7, n is 2-s, E + is H + or the equivalent M m+ /m of a metal cation M m+ from main groups 1 to 5 or transition groups 1 or 2 or 4 to 8 of the periodic system of the chemical elements, m being 1, 2 or 3, or in which E + defines an ammonium ion of the formula (Ic) in which R 15 , R 16 , R 17 and R 18 independently of one another are hydrogen or a (poly)alkyleneoxy group of the formula —[CH(R 80 )—CH(R 80 )O] k —H, in which k is a number from 1 to 30 and the two radicals R 80 independently of one another are hydrogen, C 1 -C 4 -alkyl or, if k is >1, a combination thereof; q is a number from 1 to 10, p is a number from 1 to 5, where p is ≦q+1; T is a branched or unbranched C 2 -C 6 -alkylene radical; or in which T, if q is >1, may also be a combination of branched or unbranched C 2 -C 6 -alkylene radicals; and in which the two radicals Z are identical or different and Z has the definition Z 1 or Z 4 , where Z 1 is a radical of the formula (Ib) —[X—Y] q R 3 (Ib) in which X is a C 2 -C 6 -alkylene radical, a C 5 -C 7 -cycloalkylene radical, or a combination of these radicals, it being possible for these radicals to be substituted by from 1 to 4 C 1 -C 4 -alkyl radicals, hydroxyl radicals, (C 1 -C 4 )-hydroxyalkyl radicals, by 1 or 2 C 5 -C 7 -cycloalkyl radicals, or in which X, if q is >1, may also be a combination of said definitions; Y is an —NR 2 group q is a number from 1 to 10; R 2 and R 3 independently of one another are a hydrogen atom, a substituted or unsubstituted, or partly fluorinated or perfluorinated, branched or unbranched (C 1 -C 20 )-alkyl group, a substituted or unsubstituted C 5 -C 7 -cycloalkyl group or a substituted or unsubstituted, or partly fluorinated or perfluorinated (C 2 -C 20 )-alkenyl group, it being possible for the substituents to be hydroxyl, phenyl, cyano, chloro, bromo, amino, C 2 -C 4 -acyl or C 1 -C 4 -alkoxy and where Z 4 is hydrogen.