Method for reducing the dye stain in photographic elements
US6207359A · kind A · utility
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12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2000 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Feb 22, 2020 |
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.