Patent ID: 8647802

Claim:
A method for manufacturing a toner for developing a latent electrostatic image, comprising: continuously mixing an oil phase with an aqueous phase to form an emulsified liquid with an emulsifying mechanism having an emulsified liquid circulation pathway and an emulsifying device equipped with a stirring blade; forming liquid droplets from the emulsified liquid by controlling the equilibrium between atomization and integration of the liquid droplets; and feeding the liquid droplets with stirring to a series of treatments including at least desolvation, filtration, washing and drying; wherein the oil phase is at least one of a dissolved matter and dispersion in which at least a resin and/or resin precursor, a colorant and a releasing agent are dissolved or dispersed into an organic solvent, wherein a product T of the solid content concentration (% by mass) of the oil phase and viscosity (mPa·s) measured with a rotating viscometer at 25° C., and 6 rpm satisfies 30,000≦T≦50,000, wherein a basic substance is added in the emulsified liquid during the feeding of the liquid droplets with stirring to a series of treatments in an amount of 200 ppm to 400 ppm, and wherein the basic substance is at least one selected from the group consisting of a metal hydroxide, a basic oxide, a tertiary amine, a secondary amine, and a primary amine.