| abstract |
PROBLEM TO BE SOLVED: To provide a toner for developing an electrostatic image suitable for a fixing device having low-temperature fixability, high-temperature offset resistance, heat-resistant storage stability, and colorant dispersibility and capable of achieving energy savings of an unprecedented level. An electrostatic charge image developing toner comprising at least a binder resin, a colorant, and a wax, wherein the binder resin is a polymer having a site capable of reacting with at least a polyester resin and a compound having an active hydrogen group. Including the reactant, the THF-soluble content of the polyester resin is 50 to 85% by weight, the chloroform-insoluble content is 0 to 30% by weight, and the chloroform-insoluble content of the toner itself is within the range of the formula (1). To do. 5 <(chloroform insoluble matter-colorant content) <60 (% by weight) Formula (1) [Selection figure] None |