Pigment compositions

A composition which is a mixture of pyrrolopyrrole pigments which comprises

• (a) 99.9 to 75% by weight of a pyrrolopyrrole pigment of formula I' ##STR27## wherein A and B are identical or different phenyl groups or phenyl radicals which are substituted by water-insolubilizing substituents selected from the group consisting of halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.6 -alkyl-mercapto, trifluoromethyl, cyano, dimethylamino, diethylamino, C.sub.2 -C.sub.6 -alkoxycarbonyl, acetylamino, carbamoyl or sulfamoyl, or A and B are 4-biphenylyl, naphthyl or pyridyl, and
• (b) 0.1 to 25% by weight of a modified pyrrolopyrrole pigment of formula I' which modified pigment additionally contains at least one group of formula --SO.sub.3 L, --CO.sub.2 L, --PO.sub.3 (L).sub.2, --N(R.sub.4)(R.sub.5), ##STR28## wherein L is --H, a group of formula ##EQU5## or N.sup.+ H(R.sub.3)(R.sub.4)(R.sub.5), M is a monovalent, divalent or trivalent metal cation, n is 1, 2 or 3, R.sub.3, R.sub.4 and R.sub.5 are each independently --H or alkyl, benzyl, C.sub.5 -C.sub.6 cycloalkyl or phenyl radicals, or R.sub.4 and R.sub.5, together with the nitrogen atom to which they are attached, form a morpholine or piperidine radical, q is an integer from 0 to 4, and r is an integer from 3 to 5.