Patent ID: 8497059

Claim:
A method of producing a toner comprising toner particles containing a binder resin, the binder resin comprising a non-crystalline polyester resin having a crosslinked structure and a crystalline polyester resin, the method comprising steps of: dissolving or dispersing a non-crystalline polyester resin having a polymerizable unsaturated double bond and a crystalline polyester resin in an organic solvent to form an oil phase liquid, dispersing the oil phase liquid in an aqueous medium to form an aqueous dispersion liquid of oil droplets of the oil phase liquid, adding a radical polymerization initiator to the aqueous dispersion liquid of oil droplets, the oil droplets comprising the non-crystalline polyester resin having a polymerizable unsaturated double bond and the crystalline polyester resin, whereby a polymerizable unsaturated double bond of the unsaturated non-crystalline polyester resin is subjected to radical polymerization reaction to form a non-crystalline polyester resin having a crosslinked structure in the oil droplets, and removing the organic solvent from the oil droplets comprising both of the non-crystalline polyester resin having crosslinked structure and the crystalline polyester resin after forming crosslinked structure to form toner particles.