Sludge resistant liquid developer for electrostatic images containing a metal-dithiooxamide pigment or coating

摘要

A liquid developer composition for visual development of latent electrostatic images in which the pigment particles dispersed in the liquid carrier is a metal-dithiooxamide product or a pigment coated with said metal-dithiooxamide reaction product whereby the liquid developer composition is relatively free of sludging.