Toner complexes for developing electrostatic images

摘要

A complex system for developing electrostatic images, and particularly a toner which comprises 100 parts by weight of a resin and for instance 0.5 to 5 parts by weight of the complex system, such as a metal complex composed of, e.g. a metal such as Cr, Co or Fe, and both an aromatic dicarboxylic acid which is capable of forming an acid anhydride or of a substituted such aromatic dicarboxylic acid, and an aromatic hydroxycarboxylic acid capable of forming a complex compound or a derivative thereof, e.g. a substituted such aromatic hydroxycarboxylic acid.