| 摘要 |
PROBLEM TO BE SOLVED: To provide an azo pigment alkali metal salt which has a good color tone and fastness and has novel dissociative protons having a high molar absorption coefficient; an alkaline earth metal salt and a tautomer thereof; and a coloring composition, a dyeing method, and a dyed product that use the same.SOLUTION: Provided are: an azo pigment alkali metal salt, in which the azo pigment is represented by general formula (1) defined by A-N=N-B; an alkaline earth metal salt and a tautomer thereof; and a coloring composition, a dyeing method, and a dyed product that use the same.SELECTED DRAWING: None |
