Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1991-02-26
1993-11-16
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430 45, G03G 909
Patent
active
052622649
ABSTRACT:
A magenta toner, a yellow toner, a cyan toner, and a black toner each for development of an electrostatic latent image ad a combination of the four color toners for obtaining a full color image are disclosed, the magenta toner containing a naphthol type organic pigment represented by formula (I): ##STR1## the yellow toner containing a disazo type organic pigment represented by formula (II): ##STR2## the cyan toner containing a .beta. type copper phthalocyanine pigment and a polychlorocopper phthalocyanine pigment, and the black toner containing at least one of an isoindolinone type yellow pigment and a tetrachloroisoindolinone type yellow pigment, at least one of a quinacridone type red pigment and a perylene type red pigment, and a phthalocyanine type blue pigment. The color toners are unaffected by environmental changes and capable of providing color images having stable characteristics.
REFERENCES:
patent: 4599285 (1986-07-01), Haneda et al.
patent: 4859559 (1989-08-01), Trout
patent: 4869981 (1989-09-01), Wing, Jr. et al.
patent: 4897330 (1990-01-01), Shoji et al.
patent: 4931370 (1990-06-01), Amaya et al.
Amaya Shinji
Iwanari Yoshiyuki
Nakaibayashi Noboru
Shimizu Seiichi
Yoshida Masahiro
Ashton Rosemary
Dainippon Ink and Chemical Inc.
McCamish Marion E.
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