Patent ID: 9678449
Date: 2017-06-13
CPC Classifications: G03G

Claim:
1. An electrostatic charge image developing toner, comprising: a toner particle contains a binder resin and a release agent and has a sea-island structure including a sea portion containing the binder resin and an island portion containing the release agent, and a melt viscosity of the toner satisfies the following Expression (1), a flow activation energy based on the Andrade equation of the toner satisfies the following Expression (2), a maximum frequent value in distribution of the following eccentricity B of the island portion containing the release agent shown in the following Expression (3) is in a range of 0.75 to 0.98, and a skewness in the distribution of the eccentricity B is in a range of −1.10 to −0.50: wherein η( wherein E represents a flow activation energy based on the Andrade equation; and wherein the binder resin comprises: wherein the release agent comprises: