Method for producing toner

摘要

A method for producing a toner including the steps of melt-kneading at least a resin binder and a colorant to give a kneaded product (step 1); and heat-treating the kneaded product obtained in the step 1 (step 2), wherein the resin binder contains a crystalline resin and an amorphous resin, wherein the crystalline resin contains a specified composite resin containing (a) a specified polycondensation resin component and (b) a styrenic resin component, in a specified weight ratio, wherein the composite resin is contained in the resin binder in a specified amount. The toner obtained by the above method is used in, for example, the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.

主权项

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.