Silver halide color photographic material
US4681837A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1985 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Oct 15, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2007/3034
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic light-sensitive material comprising at least three silver halide emulsion layer units sensitive to blue, green and red light, respectively, at least one of the silver halide emulsion layer units having at least two layers which are different in sensitivity from each other and containing at least Coupler (A') described below and Coupler (B) described below, and one of said layers is in charge of color formation of the highest density portion in the characteristics curve of these layers and contains Coupler (B) described below which forms a dye having the maximum absorption wavelength different from a dye formed from Coupler (A) described below in an amount of at least 30 mol % of the total amount of the couplers included therein, wherein Coupler (A) denotes (i) a coupler which forms a dye having a maximum absorption in the wavelength range from 400 nm to less than (the maximum absorption wavelength of a dye formed from Coupler (A')+5) nm, when employed in a blue-sensitive layer unit, (ii) a coupler which forms a dye having the maximum absorption in the wavelength range from 510 nm to less than (the maximum absorption wavelength of a dye formed from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.