Patent ID: 8652748

Claim:
A process for producing a toner for electrophotography comprising: (1) adding an aggregating agent to a resin particle dispersion (a) so as to attain an aggregating agent concentration Ea (% by weight), to thereby aggregate resin particles in the resin particle dispersion (a), whereby an aggregated particle dispersion (A) is produced; (2) adding a resin microparticle dispersion (b) to the aggregated particle dispersion (A) produced in said (1) adding, to thereby produce a dispersion (B) of resin microparticle-deposited aggregated particles having an aggregating agent concentration Eb (% by weight) satisfying formula 1: 0.60 ≦Eb/Ea< 1 (formula 1); (3) modifying the aggregating agent concentration of the dispersion (B) of resin microparticle-deposited aggregated particles produced in said (2) adding, to thereby produce a dispersion (C) of resin microparticle-deposited aggregated particles, having an aggregating agent concentration Ec (% by weight) satisfying formula 2-A: 0.005 ≦Ec/Ea≦ 0.30 (formula 2-A); and (4) heating the resin microparticle-deposited aggregated particles in the dispersion (C) of resin microparticle-deposited aggregated particles having the aggregating agent concentration Ec and produced in said (3) modifying at a temperature falling within a range between a glass transition point Tg (° C.) of the resin microparticles in the resin microparticle dispersion (b) and (Tg+20) (° C.), to thereby coalesce the aggregated particles.