| 摘要 |
PROBLEM TO BE SOLVED: To provide a triarylmethane pigment composition which can give colored matter exhibiting little hue change even when exposed under photoirradiation over a long period of time.SOLUTION: There is disclosed a pigment composition including a compound expressed by, for example, formula (VII), wherein Rto Reach independently represents H, an alkyl group which may have a substituent, or the like; X represents H or a halogen atom, or the like; Z represents H or the like; Ais an arbitrary n-valent heteropolyoxometalate anion; and n denotes an arbitrary natural number. |
