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Low Energy Fusing Toner by Controlling Compatibility of Crystalline Polyester with Amorphous Polyester

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In recent years, environmental concerns and energy costs have created a need for lower energy consumption in the fusing systems of printers and copiers. To develop toner for low-energy fusing systems, we are investigating crystalline polyester (C-PES). Toner with amorphous polyester (A-PES) and C-PES had good fusing ability, but showed insufficient storage stability and durability. As already reported by Fukuri et al. in NIP24, the storage stability and durability could be improved by an annealing treatment. In the annealing process, C-PES crystalline size was controlled on a nanometer scale. In this study, we report further methods to control the crystallization of C-PES in A-PES. We found it was important to control compatibility between C-PES and A-PES in addition to annealing for adequate crystal growth. We controlled solubility parameters by varying the acid monomer in A-PES polymerization. Lower compatibility between A-PES and C-PES improved the speed and degree of C-PES crystallization during annealing. From this study, a low energy fusing toner with improved storage stability, and durability can be obtained.
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Document Type: Research Article

Publication date: 01 January 2009

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  • 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.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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