Method for producing toner for electrostatic image development

摘要

A method for producing a toner for electrostatic image development including the step of melt-kneading a mixture containing a resin binder and a wax, wherein the resin binder contains an amorphous polyester (A) obtained by polycondensing an alcohol component containing 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) containing one or more α,ω-linear alkanediols having 2, 4, 6 or 8 carbon atoms, and a carboxylic acid component. The toner for electrostatic image development can be suitably used in, for example, the development or the like of latent image formed in an electrostatic development method, an electrostatic recording method, an electrostatic printing method, or the like.

主权项

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.