To provide a method for producing a toner having excellent particle size distribution and storage stability.
When the toner is produced by aggregating and fusing base microparticles whose main component is a binder resin including anionic groups, an aggregate is produced by aggregating the base microparticles in a base microparticle suspension, in a presence of a non-ionic surfactant such that a surface tension of an aqueous solution thereof is not lower than 45 mN/m at any concentration at or above a critical micelle concentration, and the toner is produced through fusion of this aggregate. As a result, drops in Tg of the toner can be curbed, so that the toner having excellent storage stability can be obtained. Furthermore the toner having good particle size distribution can be obtained.
KAWAMURA MASATERU
IMAI YASUTOMO
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