Aqueous pigment preparations for brilliant ink jet prints

Abstract

Aqueous pigment preparations comprising a) at least one pigment b) at least one polymeric carboxylic acid comprising interpolymerized alkoxylated or nonalkoxylated alpha-hydroxy-C1-C6-alkyl-acrylic acid units and at least one component c) and/or d), of which c) is a surfactant which is nonionic and/or anionic, and d) is a condensation product based on A) sulphonated aromatics B) aldehydes and/or ketones and if appropriate C) one or more compounds selected from the group of nonsulphonated aromatics, urea and urea derivatives.

Dependencies are inferred from the claim text.