Kao Corporation

Hideaki Kondo

Hiroki Kakiuchi

Kohei Katayama

Kouta Ijichi

A toner for electrophotography containing a resin binder containing a crystalline composite resin C and an amorphous polyester A and an ester wax, wherein the crystalline composite resin C is a resin containing a polycondensation resin component and a styrenic resin component, wherein the polycondensation resin component is obtained by polycondensing an alcohol component containing an aliphatic diol having 9 or more carbon atoms and 14 or less carbon atoms, and a carboxylic acid component containing an aliphatic dicarboxylic acid compound having 9 or more carbon atoms and 14 or less carbon atoms, wherein a mass ratio of the amorphous polyester A to the crystalline composite resin C (amorphous polyester A/crystalline composite resin C) is 60/40 or more and 95/5 or less, and wherein a mass ratio of the crystalline composite resin C to the ester wax (crystalline composite resin C/ester wax) is 0.5 or more and 9 or less. The toner for electrophotography of the present invention is suitably used in development of latent images or the like which is formed in electrostatic development method, electrostatic recording method, electrostatic printing method or the like.

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Sakai, Japan

Hideaki Kondo