| abstract |
PROBLEM TO BE SOLVED: To provide a compound capable of improving fluidity and non-aggregation when mixed with an organic pigment, and to further use the compound to provide a pigment composition excellent in fluidity and non-aggregation Offer things. SOLUTION: When represented in the form of a free acid, the following formula (I) Is provided. In the formula, R 1 and R 2 each represent a residue of an aliphatic hydrocarbon or an aromatic hydrocarbon having 20 or less carbon atoms which may be substituted, or both form a ring together with a nitrogen atom And k represents an integer of 1 to 6, and m represents 0.5 to 3, and n represents a number of 0.5 to 3.5, and the sum of m and n is 1 to 5. Also provided is a pigment composition containing the sulfonamidated azo compound together with an organic pigment. |