Preparation of Pigment-Containing Polyester Toner by Chemical Milling
Here we report an extension of the CM toner® technology to produce a pigment-based polyester color toner® Two innovations were incorporated in the technology. First, to disperse pigment particles finely in the toner particles and also to prevent exudation of pigment during chemical milling, we used a pigment master batch utilizing a polyester binder resin that is chemically similar to the toner resin. Secondly, we also developed a functional polyester resin containing an appropriate amount of a selected ionic functional group in the chain so that increased surface chemical potential of polymer droplets would overcome increased viscoelasticity of droplets containing pigment particles.
Pigment CM toner® particles (pigment content as high as 10 wt. %) with the volumetric mean diameter in the range of 5-10 microns and the 80% span as low as 0.55 were produced. A four-color toner set was developed and it showed excellent imaging quality as well as a good printing page yield in a commercial color laser printer.
Document Type: Research Article
Publication date: 2005-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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