Patent ID: 9017912
Filing Date: 2015-04-28
Classification: G03G

Abstract:
1. A method for producing a toner comprising: (1) melt-kneading at least a resin binder and a colorant to give a kneaded product; and (2) heat-treating the kneaded product obtained in (1), wherein the resin binder comprises a crystalline resin and an amorphous resin, wherein the crystalline resin comprises a composite resin comprising: (a) a polycondensation resin component 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 (b) a styrenic resin component, wherein a weight ratio of the polycondensation resin component to the styrenic resin component in the composite resin, i.e. polycondensation resin component/styrenic resin component, is from 50/50 to 95/5, and wherein the composite resin is contained in an amount of from 5 to 40% by weight of the resin binder.