Color photothermographic element comprising a dye-forming system for forming a novel infrared dye
US6599684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Aug 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to a photothermographic element comprising at least one imaging layer with a pyrrolotriazole coupler and a developing agent, or precursor thereof, the combination of which is capable of forming an image record in the infrared region of the light spectrum in response to a selected hue of visible light. This expedient leads to the formation of high quality images, especially when scanning photothermographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed. Also disclosed is a method for photothermographically forming a developed image comprising an infrared image record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.