Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Magnetic imaging
Patent
1982-09-02
1984-04-17
Martin, Jr., Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Magnetic imaging
430106, 4301066, 430137, 428407, G03G 908, G03G 914
Patent
active
044435274
ABSTRACT:
Colored magnetically attractable toner powder for the development of latent electrostatic or magnetic images consists of particles each comprising a magnetically attractable core, preferably spherical, formed of particulate magnetically attractable material or of a dispersion of such material in a binder, a masking layer enveloping the core and containing binder mixed with light-reflecting pigment of submicron particle size, and coloring material applied in and/or onto the masking layer. Processes for preparing the toner powder are disclosed, and a process for developing electrostatic or magnetic latent image patterns by its use.
REFERENCES:
patent: 3639245 (1972-02-01), Nelson
patent: 3816117 (1974-06-01), Kankeinen
patent: 3925219 (1975-12-01), Strong
patent: 4013783 (1977-03-01), de Putter et al.
patent: 4189390 (1980-02-01), Noguchi et al.
patent: 4238562 (1980-12-01), Ishida et al.
Early-Disclosure Patent Gazette Japan No. 76-46131, Hitachi KK 18.10.74-Japan 119200.
Crommentuyn Gerardus J.
Heikens Harm H.
Johnston Albert C.
Martin Jr. Roland E.
Oce'-Nederland, B.V.
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