| 主权项 |
1. An electrostatic image developing toner comprising toner particles that contain a binder resin and a coloring agent,
wherein the binder resin comprises an amorphous resin and a crystalline polyester resin, and wherein the electrostatic image developing toner satisfies both of the following Relation (1) and Relation (2),
0.2≦ΔH1/ΔH(theo.)≦0.5 Relation (1):0.1≦ΔH2/ΔH(theo.)≦0.3 Relation (2): where ΔH1 (J/g) is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a first heating step from room temperature to 150° C., determined on a DSC curve of the electrostatic image developing toner measured by a differential scanning calorimetry, ΔH2 (J/g) is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a second heating step from 0° C. to 150° C., determined on the DSC curve of the toner, and ΔH(theo.) is a value of fusion enthalpy calculated from a mass ratio of a structural unit derived from a linear aliphatic monomer contained in the binder resin based on a group contribution method. |
