Container having photographic conditioning solution concentrate
US5578427A · kind A · utility
3Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1996 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Apr 2, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at .ltoreq.450 g/l, a sulfite at from 0 to 100 g/l, a bleach accelerating agent at .ltoreq.13.5, and a metal ion chelating agent at .ltoreq.45 g/l.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.