| 摘要 |
PROBLEM TO BE SOLVED: To provide a dye polymer (A) having a clear color tone, high brightness, high coloring power and excellent contrast, and high fastness (heat resistance, light resistance and solvent resistance), and a coloring composition containing the same, in a coloring composition for a color filter, a coloring composition for an ink jet, various coating such as a coating material or an ink composition.SOLUTION: A dye polymer is obtained by copolymerizing a structural unit (monomer) represented by the formula with methyl methacrylate, a methacrylic acid or the like. |
