Dye-forming electrothermographic material and process

Details Dye-forming electrothermographic material and process Dye-forming electrothermographic material and process

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.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-929438