Method of processing silver halide color photographic material including the use of a two bath desilvering system comprising two baths
US4769312A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1986 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Oct 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of processing silver halide color photographic materials which comprises image-wise exposing said silver halide color photographic materials, color developing and then desilvering them in a bath having bleaching ability, characterized in that the bath having bleaching ability comprises two baths, the oxidation-reduction potential of the first bath being higher than that of the second bath, the oxidation-reduction potential of the second bath falling in the range of +60 mV to -60 mV, the first bath containing a water-soluble bromide in an amount of 0.5 to 1.3 mole/l, and the second bath containing a water-soluble bromide in an amount of 0 to 0.5 mole/l.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.