Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1994-10-31
1996-09-24
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430109, 430110, 430137, G03G 9087
Patent
active
055589677
ABSTRACT:
A toner and a two-component developer for developing electrostatic images are disclosed. The toner comprises toner particles and the two-component developer comprises the toner and a carrier. The toner particle has a two-layer structure of a core layer and a surface layer, produced by suspension polymerization. The core layer and surface layer are mainly comprised of a resin having a low softening point and a resin having a high softening point, respectively. In the surface layer, a polyester resin having a specific acid value and a specific molecular weight is included to impart an appropriate water absorption to the toner. Due to the appropriate water absorption and superior fluidity, the toner can achieve a speedy rise of charge to give electrostatic charges in a stable quantity over a long period of time, and it can give a high image density and images with superior fine-line reproduction and highlight reproduction.
REFERENCES:
patent: 2297691 (1942-10-01), Carlson
patent: 4904558 (1990-02-01), Nagatsuka et al.
patent: 5102761 (1992-04-01), Ohsaki et al.
patent: 5116712 (1992-05-01), Nakamura et al.
patent: 5130219 (1992-07-01), Mori et al.
patent: 5130220 (1992-07-01), Mori et al.
patent: 5135833 (1992-08-01), Matsunaga et al.
patent: 5143812 (1992-09-01), Mori et al.
patent: 5219946 (1993-06-01), Tanikawa et al.
patent: 5354640 (1994-10-01), Kanbayashi et al.
Section Ch, Week 9233, Derwent Publications Ltd., Class G06, AN 92-272239 for JPA 4-184358, published Jul. 1, 1992.
Section Ch, Week 8219, Derwent Publications Ltd., Class G06, AN 82-38082E, for JPA 57-054949, published Apr. 1, 1982.
Section Ch, Week 8825, Derwent Publications Ltd., Class G05, AN 88-171626 for JPA 63-109447, published Oct. 27, 1986.
Translation of JP 4-184358; Jul. 1, 1992.
Chiba Tatsuhiko
Kanbayashi Makoto
Kasuya Takashige
Nagatsuka Takayuki
Nakamura Tatsuya
Canon Kabushiki Kaisha
Rodee Christopher D.
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