Silver halide photographic light sensitive material with improved silver blackness of picture image
US4818675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1986 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jun 11, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention provides a silver halide photographic light sensitive material having an improved blackness of image silver, as well as high sensitivity and covering power. The present silver halide photographic light sensitive material includes at least one layer of a silver halide photographic emulsion on at least one side of a support, characterized in that said layer of silver halide photographic emulsion contains fine silver halide grains, or tabular silver halide grains having a grain thickness of 0.4.mu. or less, and a dye having a maximum absorption wave length of 520 to 580 nm is contained in said layer of silver halide photographic emulsion and/or another layer such that the transmission density of green light is 0.03 or less after the developing treatment of the photographic light sensitive material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.