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Volume: 25 | Article ID: art00015_1
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Low Energy Fusing Toner by Controlling Compatibility of Crystalline Polyester with Amorphous Polyester
Takeshi Ashizawa
Akihiro Eida
Youko Hanada
Jun Shimizu
  DOI :  10.2352/ISSN.2169-4451.2009.25.1.art00015_1  Published Online :  January 2009
Abstract

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.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/ISSN.2169-4451.2009.25.1.art00015_1
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Takeshi Ashizawa, Akihiro Eida, Youko Hanada, Jun Shimizu, "Low Energy Fusing Toner by Controlling Compatibility of Crystalline Polyester with Amorphous Polyester"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP25),  2009,  pp 43 - 46,  https://doi.org/10.2352/ISSN.2169-4451.2009.25.1.art00015_1

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Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20090101)2009:1L.43;1-
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Articles
Low Energy Fusing Toner by Controlling Compatibility of Crystalline Polyester with Amorphous Polyester
AshizawaTakeshi
EidaAkihiro
HanadaYouko
ShimizuJun
01012009
2009
1
43
46
2009
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.