Charge control agent and a method of production using the electrostatic image developing toner, the toner for developing electrostatic images

Abstract: excellent OBJECTIVE storage stability, even density variation when used repeatedly many times, there is no occurrence of fogging, can also form a good toner image by environmental changes, toner fixability , no offset problems, obtaining a toner for developing electrostatic images can be formed a clear color image in the case of a color toner. [Configuration] The halogenated chromic aqueous PH3.0～4.5, represented by the following formula which is formed by adding an alkali metal salt aqueous solution of salicylic acid or salicylic acid derivative of less than pH6.5~7.0 that compound using trivalent chromium salt of salicylic acid or salicylic acid derivative as a charge control agent in the toner for developing electrostatic images comprising a. [Of] (Or wherein, R Or R n represents 0, 1 or 2. )