POLYESTER RESIN, ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a polyester resin reduced in residual components occurring in a polycondensation reaction.SOLUTION: The polyester resin consists of a polycondensate of a rosin glycidyl ether and a polyvalent carboxylic acid. An electrostatic image developing toner including the polyester resin is also provided.