| abstract |
The present invention provides a novel colorant having high solubility in organic solvents, excellent heat resistance, and useful for forming color filters and the like. The coloring agent of this invention is represented by following General formula (1). In the formula (1), D represents a colorant matrix, R represents a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkenylene group, a substituted or unsubstituted divalent alicyclic hydrocarbon group, or a substituted or unsubstituted arylene. Group, X + represents an organic ammonium ion, m represents an integer of 1 or more] |