Process of processing silver halide photographic material and photographic processing composition having a fixing ability
US5338648A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Sep 27, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process and composition for processing a silver halide photographic material. The photographic material mat be a black and white photographic material or a color photographic material. The photographic material is processed in a photographic processing bath containing at least one compound represented by the following formula (I) and substantially not containing a thiosulfate ion: ##STR1## wherein Q represents an atomic group necessary for forming a 5- or 6-membered heterocyclic ring, which heterocyclic ring may be condensed with a carbon aromatic ring or a hetero-aromatic ring; R represents an alkyl group, an alkenyl group, an aralkyl group, an aryl group or a heterocyclic group, each group represented by R being substituted by at least one substituent selected from the group consisting of a carboxyl group or salt thereof a sulfonic acid group or salt thereof a phosphonic acid group or salt thereof, an amino group and an ammonium group, or R represents a single bond; n represents an integer or from 1 to 3; and M represents a cation group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.