Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1999-01-06
2000-10-17
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430115, G03G 9135
Patent
active
061329223
ABSTRACT:
A high viscosity, high solid volume liquid ink for use in electrophotographic printing systems. A silicone oil carrier material is combined with toner particles (including pigment, binder polymers and charge control agents) in a ratio of about 45% toner particles to 55% carrier liquid. The resultant ink preferably has a viscosity in the range 30000 to 50000 cs. The high viscosity ink of the present invention is preferably applied to a photoconductor material having a latent charged image thereon and a thin pre-wet material applied thereto. The pre-wet material is preferably a low viscosity silicone oil material. The composite layer of the combined low viscosity pre-wet and high viscosity ink permits the polymerized toner particles to migrate toward the latent charged image on the photoconductor surface. The high viscosity ink of the present invention helps maintain uniform dispersion of the toner particles in the liquid carrier. The high solid volume of the ink enables the transfer of less ink to the imaging components of the printing system and thereby enables higher speed printing of images. The chemical inertness of the silicone oil liquid carrier as compared to other known hydrocarbon based carrier materials causes less damage to the imaging components of the printing system.
REFERENCES:
patent: 3806354 (1974-04-01), Amidon et al.
patent: 3901600 (1975-08-01), Yoeger et al.
patent: 3954640 (1976-05-01), Lu et al.
patent: 4007041 (1977-02-01), Chow
patent: 4119461 (1978-10-01), Yamada et al.
patent: 4574114 (1986-03-01), Tsutsumi et al.
patent: 4740443 (1988-04-01), Nakahara et al.
patent: 5155534 (1992-10-01), Kurotori et al.
patent: 5266458 (1993-11-01), Matsibayashi et al.
patent: 5300390 (1994-04-01), Landa et al.
patent: 5383008 (1995-01-01), Sheridon
patent: 5384225 (1995-01-01), Kurotori et al.
patent: 5457002 (1995-10-01), Beack et al.
patent: 5463453 (1995-10-01), Kurotori et al.
patent: 5612162 (1997-03-01), Lawson et al.
patent: 5642188 (1997-06-01), Mochizuki et al.
patent: 5826145 (1998-10-01), Fukae
Fukae Kensuke
Yoshida Ichiro
Advanced Color Technology, Inc.
Fishman Daniel N.
Goodrow John
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