Patent ID: 7153624
Filing Date: 2006-12-26
Classification: G03G

Abstract:
1. A method for producing a plastic toner for electrophotography, the method comprising: using finished convected powder as base materials for powder coating, the powder including a pressure-setting plastic base and a hardener and having a grain size distribution of 1 to 20 μm; charging the powder in a dry mixing process with charge control agents for improving a surface charge, wherein a concentration of the charge control agents is selected between >0 and 5 weight-%; charging the powder in a further mixing process with additives, wherein at least one of aerosils and silanes are employed as the additives and a concentration of the additives is selected to be between >0 and 5 weight-%; wherein at least one powder charge material selected from the group including epoxides, polyesters, polyurethanes, melamines, acrylates, and combinations thereof are used as the base materials.