Patent ID: 8852841
Filing Date: 2014-10-07
Classification: G03G

Abstract:
1. A method for producing a toner for electrostatic image development comprising at least a resin binder and a charge control agent, the method comprising: melt-kneading components comprising a resin binder and a charge control agent to provide a melt-kneaded product; and pulverizing the melt-kneaded product, and classifying a pulverized product, wherein the resin binder comprises a polyester A obtained by polycondensing an alcohol component comprising 1,2-propanediol and a carboxylic acid component comprising a rosin compound and an aliphatic dicarboxylic acid compound having 6 to 10 carbon atoms, wherein 1,2-propanediol is contained in the alcohol component of the polyester A in an amount of 85% by mol or more, and wherein the resin binder comprises a polyester H having a softening point of from 125° to 155° C., and a polyester L having a softening point of from 90° to 125° C., wherein a difference in the softening points of the polyester H and the polyester L is 10° C. or more, and wherein at least one of the polyester H and the polyester L is the polyester A.