Method for processing silver halide color photosensitive materials
US4588677A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Dec 28, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/413
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for processing a silver halide color photosensitive material which comprises processing a silver halide color photosensitive material containing at least one 4-mercapto-5-pyrazolone type magenta coupler represented by formula (I) ##STR1## wherein W represents an aryl group; X represents an alkyl group, an aryl group or a heterocyclic ring group; and Y represents an acylamino group, a ureido group, or an anilino group; with a color developer containing at least one compound selected from a compound represented by formula (II) ##STR2## wherein R represents a lower alkyl group, and M.sub.1 and M.sub.2, which can be the same or different, each represents a hydrogen atom, and an alkali metal atom, or an ammonium group; a compound represented by formula (III) ##STR3## wherein M.sub.3, M.sub.4, M.sub.5, M.sub.6 and M.sub.7, which can be the same or different, each represents a hydrogen atom, an alkali metal atom, or an ammonium group, and n represents an integer of 1 or 2; and an aminopolyphosphonic acid, and a phosphonocarboxylic acid in a concentration greater than 5.0.times.10.sup.-3 mol/liter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.