Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce color reproduction
Patent
1986-06-04
1988-06-21
Goodrow, John L.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce color reproduction
430 45, 430351, 430353, 430502, 430618, 430619, G03G 1524, G03G 1322
Patent
active
047525479
ABSTRACT:
A dye-forming electrothermographic element comprises an electrically activatable recording layer comprising (a) a reducing agent or reducing agent precursor capable of being activated by a Lewis base; (b) a cobalt(III) Lewis base complex; and (c) at least one of (i) a reducible dye-forming compound that has an oxidation state above that of the conjugate dye, (ii) a dye capable of changing its wavelength of absorption by reaction with a Lewis base, and (iii) a dye-forming coupler capable of reacting with the oxidized form of the reducing agent in (a) to form a dye. A negative or positive dye image is formed in such a dye-forming electrothermographic element by applying an electrical potential imagewise to the element of a magnitude and for a time sufficient to produce in the image areas a charge density sufficient to produce a latent image; and, then, heating the element to a temperature and for a time sufficient to form a dye image in the element. The dye-forming electrothermographic element can be a multicolor, multilayer electrothermographic element.
REFERENCES:
patent: 4131463 (1978-12-01), Tsubol et al.
patent: 4201591 (1980-05-01), Reithel
patent: 4234670 (1980-11-01), Kaukeinen et al.
patent: 4284704 (1981-08-01), Fleming et al.
patent: 4294912 (1981-10-01), Adin et al.
patent: 4343880 (1982-08-01), Lelental
Research Disclosure, Dec. 1978, Item No. 17643.
Research Disclosure, Jul. 1986, Item No. 14719.
Cowen Stanley W.
Fleming James C.
Lelental Mark
Eastman Kodak Company
Goodrow John L.
Knapp Richard E.
LandOfFree
Dye-forming electrothermographic material and process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dye-forming electrothermographic material and process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dye-forming electrothermographic material and process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-929438