Patent ID: 8236471
Filing Date: 2012-08-07
Classification: G03G

Abstract:
1. A toner for developing an electrostatic charge image, the toner comprising a binder resin containing a crystalline polyester resin and a noncrystalline polyester resin, a colorant, a releasing agent, a ketone solvent, and an alcoholic solvent, the total concentration of the ketone solvent and the alcoholic solvent in a first toner dispersion liquid being less than about 10 ppm when 0.5 g of the toner is dispersed in 2 g of deionized water to form the first toner dispersion liquid, and the total concentration of the ketone solvent in a second toner dispersion liquid being from about 1 ppm to about 8 ppm, and the total concentration of the ketone solvent and the alcoholic solvent in the second toner dispersion liquid being from about 2 ppm to about 50 ppm, when 0.5 g of the toner is dispersed in 2 g of N,N-dimethylformamide to form the second toner dispersion liquid, wherein the first and second toner dispersion liquids are left to stand at 20° C. for 24 hours.