Silver halide color photographic materials with diffusible dye for improving graininess
US4489155A · kind A · utility
22Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Jul 5, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/19
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a silver halide color photographic material is disclosed. The material is comprised of a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. The granularity of the material is improved by incorporating a non-diffusible coupler capable of forming a properly smearing diffusible dye by causing a reaction with the oxidation product of a color developing agent and a colorless competing compound capable of capturing the oxidation product of a color developing agent in at least one of the foregoing silver halide emulsion layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.