Electrophotographic Printing (EP, often referred to as Xerography, or laser printing) plays an important and growing role in the printing industry. The color EP process has become a standard technology for business reports, presentation graphics, and other important professional documents. It is expected the global electrophotographic printing market size market will exhibit a CAGR (compound annual growth rate) of 5.4% during 2023-2027, despite the impact of the Covid-19. Digital print processes (both electrophotography and inkjet) are forecast to generally gain share from conventional print technologies, primarily offset litho. Chemically Processed Toner (CPT), especially Emulsion Aggregation (EA) toner, has been the critical driving force in advancing the EP technology. EA Toner’s precisely engineered particle structure and morphology along with small particle size, narrow size particle distribution, circular shape provides advanced image resolution and better image homogeny, as well as improved printer reliability, decreased machine downtime and reduction of overall costs. The EA technology developed by Xerox utilizes sophisticated chemical design and control based on nanotechnology methodology to generate micron-sized particles in a bottoms-up approach from nanoscale components. In this talk, the critical role of polymer colloidal particle self-assembly will be discussed in the controlled aggregation of polymer colloidal with pigment and wax dispersion particles.

Self-assembly of colloidal particles in electrophotographic printing applications

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