ELECTROSTATIC INK COMPOSITIONS

摘要

There is provided an electrostatic ink composition comprising chargeable particles comprising a resin and a conductive pigment; a charge director comprising a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula [R1-O-C(O)CH2CH(SO3)C(O)-O-R2] wherein each of R1 and R2 is an a IkyI group; and a dispersant being or comprising a succinimide linked to a basic group. A method of manufacturing an electrostatic ink composition and a print medium are also described.