abstract |
(57) [Abstract] [Purpose] To provide an electrostatic charge image developing toner excellent in hot offset property, pulverizability and environmental stability. In an electrophotographic toner comprising a binder resin and a colorant dispersed therein, the binder resin is a polyester resin, and the binder resin does not have a component having a molecular weight of 1 × 10 7 or more, and GPC of THF-dissolved component Weight average molecular weight in the molecular weight distribution according to Has a main peak in the range of up to 30,000 and a sub-peak at a molecular weight of 500,000 or more. This sub-peak kneads the toner composition, and mechanical energy during kneading allows the molecular weight of 1 × 10 7 or more to be obtained. An electrostatic charge layer developing toner obtained by cleaving a molecule of a resin component contained therein. |