Color photographic materials with magenta minimum density dyes
US7632632B1 · kind B1 · utility
1Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jun 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0.005 per mg/m2. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.