Patent ID: 8916324

Claim:
A toner comprising: base particles formed by emulsifying or dispersing, in an aqueous medium, a toner composition liquid which is obtained by dissolving or dispersing, in an organic solvent, at least a binder resin soluble in the organic solvent and a colorant masterbatch containing a colorant and a colorant dispersion resin having a weight average molecular weight (Mw) of 9,000 to 50,000, wherein the colorant contains an organic pigment selected from the group consisting of C.I. Pigment Red 269 , C.I. Pigment Red 238 , C.I. Pigment Red 146 , C.I. Pigment Red 185 , C.I.Pigment Yellow 93 , C.I. Pigment Yellow 128 , C.I. Pigment Yellow 180 , C.I. Pigment Yellow 74 , and C.I. Pigment Yellow 185 , wherein the colorant dispersion resin is a resin having sparing solubility defined below: where the “sparing solubility” means that when 4 parts by mass of the colorant dispersion resin are added to and mixed with 10 parts by mass of the organic solvent, the mixture becomes white turbid at 25° C. or becomes a transparent solution once at 25° C. and then becomes white turbid within 12 hours, wherein the colorant dispersion resin is a polyester resin containing an amide bond structure, and wherein the colorant dispersion resin has a higher density than the binder resin.