Patent ID: 9141011
Filing Date: 2015-09-22
Classification: G03G

Abstract:
1. A method for producing a toner for electrostatic image development comprising the step of melt-kneading a mixture comprising a resin binder and a wax, wherein the resin binder comprises an amorphous polyester (A) obtained by polycondensing an alcohol component comprising an aliphatic diol (a) having 3 or 4 carbon atoms, the aliphatic diol having a hydroxyl group bonded to a secondary carbon atom, and an aliphatic diol (b) comprising one or more α,ω-linear alkanediols having 2, 4, 6 or 8 carbon atoms, and a carboxylic acid component, a molar ratio of the aliphatic diol (a) to the aliphatic diol (b), i.e. aliphatic diol (a)/aliphatic diol (b), being from 95/5 to 55/45, and wherein the wax has a melting point of from 60° to 120° C., and a content of the wax being from 0.2 to 13 parts by mass, based on 100 parts by mass of the resin binder.