Silver halide color photographic light-sensitive material improved in cyan image characteristics
US4818672A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jun 9, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3815
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A silver halide photographic light-sensitive material containing a novel cyan dye forming coupler is disclosed. The cyan dye forming coupler is represented by the following formula. ##STR1## In the formula R.sub.1 and R.sub.2 are each a substituent, and X is a group capable of being splitted off from the coupler residue upon reaction of the coupler residue with the oxydized product of a color developing agent; and the total number of carbon atoms contained in the groups represented by R.sub.1, R.sub.2 and X is from 8 to 50. The spectral absorption characteristics of cyan dye images formed by the coupler of the invention are so sharp and steep that color reproduction can be achieved very advantageously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.