Patent ID: 8399168

Claim:
A method for producing a toner, comprising: a liquid mixture preparation step of mixing at least a colorant particle aqueous dispersion containing colorant particles, a wax particle aqueous dispersion containing wax particles and a crystalline self-dispersion polyester resin particle aqueous dispersion containing at least one carboxyl group as a hydrophilic group, thereby preparing a liquid mixture; an aggregate formation step of adding a polyvalent metal salt as an aggregating agent to the liquid mixture obtained above, aggregating the colorant particles, the wax particles and the crystalline self-dispersion polyester resin particles to form aggregates, and mixing a non-crystalline polyester resin particle aqueous dispersion with the liquid mixture containing the aggregates to further perform aggregation; and a particle formation step of heating the liquid mixture after completion of the aggregate formation step to uniformize particle size and shape of the aggregates in the liquid mixture, wherein the crystalline self-dispersion polyester resin particles contain a compound represented by the following chemical formula (1) as an alcohol component: H—(—O—CH 2 CH 2 CH 2 CH 2 —)—OH (1) wherein n is an integer of from 2 to 50, and further contain 1,4-butanediol as a secondary alcohol component.