Method of preventing offset of electrostatic images after fixing and developing using polyvalent metal salt polymer in toner

摘要

A toner for development of latent electrostatic images comprising a coloring agent, a binder resin and a fixing aid, said binder resin comprising a polyvalent metal salt (b) of a carboxyl-containing addition polymer (a) which satisfies the following expressions: 10-2<(NxMw)/2<10 10-5<N<2x10-3 wherein N is the number of moles of metal carboxylate ions contained per gram of the polyvalent metal salt (b), and Mw represents the weight average molecular weight of the addition polymer (a), and said fixing aid comprising at least one compound selected from the group consisting of waxes, fatty acid amides and metal soaps.