Patent ID: 7560214

Claim:
Toner produced by mixing in an aqueous medium at least a resin particle dispersion in which resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed and heating and aggregating the mixed dispersion, wherein a main component of a surface-active agent used for the resin particle dispersion includes a mixture of a nonionic surface-active agent and an anionic surface-active agent, and a content of the nonionic surface-active agent in the mixture is 60 wt % to 95 wt %, and a main component of at least one surface-active agent selected from a surface-active agent used for the wax particle dispersion and a surface-active agent used for the colorant particle dispersion is a nonionic surface-active agent, and wherein the wax comprises at least a first wax including wax that has an endothermic peak temperature (melting point represented by Tmw1 (° C.)) of 50° C. to 90° C. based on a DSC method, and a second wax including wax that has an endothermic peak temperature (melting point represented by Tmw2 (° C.)) 5° C. (2 to 70° C. higher than Tmw1 of the first wax based on the DSC method, the first wax includes wax that has an iodine value of not more than 25 and a saponification value of 30 to 300 or ester wax that includes at least one of higher alcohol having a carbon number of 16 to 24 and higher fatty acid having a carbon number of 16 to 24, the second wax includes aliphatic hydrocarbon wax, and TW2/EW1 is 1 to 9 where EW1 and TW2 are weight ratios of the first wax and the second wax to 100 parts by weight of the wax in the wax particle dispersion, respectively.