Acceleration of silver removal by thioether compounds in sulfite fixer
US5424176A · kind A · utility
9Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Nov 9, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C5/38
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing solution having a pH.gtoreq.7 and comprising a fixing amount of sulfite and a fix accelerating amount of a thioether compound; wherein the fixing solution contains less than 0.05 moles/liter of thiosulfate and a method of processing an imagewise exposed and developed silver halide photographic element comprising fixing in said fixing solution a silver halide photographic element containing at least one emulsion or deposit of silver halide comprising greater than 90 mole % silver chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.