Method for reducing the dye stain in photographic elements
US6436624B2 · kind B2 · utility
1Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.