Patent ID: 8367288

Claim:
A yellow toner which comprises toner base particles having a binder resin, a colorant and a wax component; the colorant comprising a coloring matter compound represented by the following general formula (1) and a pigment represented by the following formula (2): wherein; R 1 represents a hydrogen atom, an alkyl group, an aryl group or an aralkyl group; R 2 represents a hydrogen atom, an amino group, an alkyl group, an aryl group, a COOR 3 group (R 3 represents an alkyl group, an aryl group or an aralkyl group), a CONR 4 R 5 group (R 4 represents an alkyl group, an aryl group or an aralkyl group, R 5 represents a hydrogen atom, an alkyl group, an aryl group or an aralkyl group, and R 4 and R 5 may form a heterocyclic ring together with a nitrogen atom) or a COOM 1 group (M 1 represents a hydrogen atom or a counter cation); R 6 represents a hydroxyl group or an amino group; R 7 to R 11 each independently represent a hydrogen atom, a halogen atom, a trifluoromethyl group, a nitro group, an acetylamino group, a sulfamoyl group, a hydroxyl group, an alkyl group, an alkoxyl group, a COOR 12 group (R 12 represents an alkyl group, an aryl group or an aralkyl group), a CONR 13 R 14 group (R 13 represents an alkyl group, an aryl group or an aralkyl group, R 14 represents a hydrogen atom, an alkyl group, an aryl group or an aralkyl group, and R 13 and R 14 may form a heterocyclic ring together with a nitrogen atom), a COOM 2 group (M 2 represents a hydrogen atom or a counter cation) or an SO 3 M 3 group (M 3 represents a hydrogen atom or a counter cation); and the above R 1 to R 14 may each be further substituted, the coloring matter compound represented by the general formula 1 must satisfy any of the following i) and ii): i) R 2 is the CONR 4 R 5 group; and ii) at least one of R 7 to R 11 is the COOR 12 group or CONR 13 R 14 group; and