Patent ID: 8735039
Filing Date: 2014-05-27
Classification: G03G

Abstract:
1. A toner for electrostatic image development comprising at least a resin binder, the resin binder being composed of a crystalline resin and an amorphous resin, wherein the crystalline resin comprises a crystalline polyester obtained by polycondensing an alcohol component comprising an aliphatic diol having 2 to 10 carbon atoms and a carboxylic acid component comprising an aromatic dicarboxylic acid compound and an aromatic tricarboxylic or higher polycarboxylic acid compound, wherein the crystalline polyester has a weight-average molecular weight of from 20,000 to 150,000, and wherein the crystalline resin and the amorphous resin are in a weight ratio, i.e. crystalline resin/amorphous resin, of from 55/45 to 95/5.