Color photographic element and process
US5019489A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jul 26, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3225
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A combination in a color photographic silver halide element and process of at least one red-sensitive silver halide emulsion layer comprising a particular phenolic cyan dye-forming coupler with at least one green-sensitive silver halide emulsion layer comprising a particular pyrazolo[3,2-c]-s-triazole coupler and at least one blue-sensitive silver halide emulsion layer comprising a particular pivaloylacetanilide yellow dye-forming coupler enables improved color saturation of dye images, better relation of speed to grain characteristics and reduced unwanted spectral absorption of dye images formed. This combination is particularly useful in color photographic silver halide materials and processes for forming improved reversal dye images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.