| abstract |
The present invention provides a pigment composition, a method for producing the same, and an aqueous ink composition using the above-mentioned pigment composition. The pigment composition includes: at least one pigment selected from the group consisting of perone-based pigments and perylene-based pigments; water; a resin having a structural unit represented by Formula 1; At least 1 kind of compound in the group which consists of a phthalimide compound and a naphthalimide compound which has a carboxyalkyl group. In formula 1, R 1 represents hydrogen atom or methyl group, L 2 represents -C(=O)O-, -OC(=O)- or -C(=O)NR 2 -, R 2 represents hydrogen atom or carbon An alkyl group having 1 to 6 atoms, and R 3 represents an alkyl group having 6 or more carbon atoms. |