TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE, METHOD FOR MANUFACTURING THE SAME, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS

摘要

To provide a toner manufacturing method including: continuously mixing an oil phase with an aqueous phase to form an emulsified liquid using 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 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.