Silver halide color photographic material containing at least one monodispersed emulsion having a specified particle size distribution
US5118597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Nov 7, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/158
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the light-sensitive silver halide emulsion layer contains at least one monodispersed emulsion having a particle size distribution such that a coefficient of variation with respect to a particle diameter of silver halide grains, S/r (wherein S represents a standard deviation regarding to a particle diameter and r represents an average particle diameter) is not more than about 0.25, and the silver halide color photographic material contains at least one primary compound capable of releasing, upon a reaction with an oxidation product of a developing agent, a secondary compound which is capable of further releasing a development inhibitor upon a reaction with another molecule of an oxidation product of a developing agent. The silver halide color photographic material is excellent in sharpnes, graininess and color reproducibility and has a broad exposure latitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.