| abstract |
There remains a need for a magenta colorant in which the thermal stability of the metal compound colorant is superior to the thermal stability of chromogens not associated with the metal. [Solution] A phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula: [Chemical 1] Where M is (1) a metal ion having a positive charge + y, where y is an integer and is at least 2; The metal ion is a metal ion capable of forming a compound with at least two chromogenic moieties of the formula: [Chemical 2] Or (2) either a metal-containing moiety capable of forming a compound with at least two chromogenic moieties of the formula: [Chemical 3] z is an integer representing the number of chromogenic moieties of the formula: [Formula 4] At least 2, R 1, R 2, R 3 , R 4, R 5, R 6, R 7, a, b, c, d, Y, Q -, A, and CA are as defined herein) [Selection figure] None |