Silver halide color photographic material comprising a magenta coupler and a formaldehyde scavenger and method of processing therefor
US4894318A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1986 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | May 13, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains an uncolored magenta coupler and at least one compound capable of reacting with and fixing formaldehyde vapor, and at least 30 mol % based on the total amount of the uncolored magenta coupler present in the silver halide color photographic material is an uncolored 5-pyrazolone 2-equivalent magenta coupler. The silver halide color photographic material has good latent image stability and a reduced layer thickness and thus improved sharpness. It is further possible thereby to avoid a decrease in color density and the formation of fog normally present when the silver halide color photographic material is brought into contact with formaldehyde vapor during storage prior to color development processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.