Patent ID: 7419537

Claim:
A phthalocyanine colorant represented by Formula (1) wherein M represents a hydrogen atom, a metal atom, a metal oxide, a metal hydroxide, or a metal halide; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 and R 15 each independently represent an unsubstituted sulfamoyl group represented by Formula (2), a substituted sulfamoyl group represented by Formula (3), or a hydrogen atom, provided that at least one of R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 and R 15 is the unsubstituted sulfamoyl group represented by Formula (2), and at least one thereof is the substituted sulfamoyl group represented by Formula (3); and R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 and R 16 represent hydrogen atoms; the sum of a number of the unsubstituted sulfamoyl group and a number of the substituted sulfamoyl group is 2 to 4, and a number of the unsubstituted sulfamoyl group is 1 to 3 and a number of the substituted sulfamoyl group is 1 to wherein R 17 and R 18 each independently represent a hydrogen atom; A represents an alkylene group having 1 to 4 carbon atoms; any one of Y and Z represents, an amino group, or a C1-C6 alkylamino group substituted with a sulfonic acid group or a carboxyl group and the other is a phenylamino group or a naphthylamino group substituted with a sulfonic acid group or a carboxyl group.