Method of fixing and bleach-fixing a silver halide photographic material using mesoionic compounds
US5401621A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1991 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Aug 2, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for processing an imagewise exposed silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of developing in a developing bath and processing in a bath having a fixing ability, wherein the bath having the fixing ability contains at least one mesoionic compound represented by formula (I): ##STR1## In a second embodiment, a process is disclosed for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of subjecting the material to color development, and then subjecting the material to blix in a blix bath, wherein the blix bath contains at least one mesoionic compound represented formula (III) or (IV): ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.