Radiation imagery chemistry: process – composition – or product th – Imaged product – Nonsilver image
Patent
1986-09-18
1988-05-03
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Imaged product
Nonsilver image
430512, 430551, 430931, 430216, 430220, 25240053, G03C 184, G03C 108
Patent
active
047419806
ABSTRACT:
A method for increasing color-fastness of organic coloring matters against light is disclosed. The color-fastness of the organic coloring matter of which absorption maximum is the region from 400 nm to 700 nm is increased by coexisting with a metal complex represented by the following general formula: ##STR1## in which R.sub.1 R.sub.2, R.sub.1 ' and R.sub.2 ' are a hydrogen atom or a substituent, X and X' are O or S, Y is O, S, SO or SO.sub.2 and M is a metal atom.
The method adapts to improve the fastness of color images of silver halide photographic materials. In this case, the organic coloring matter is a dyestuff formed by coupling a color forming coupler with an oxidation product of a color developing agent in the silver halide color photographic material or a dyestuff diffused to a receiving layer of the diffusion transfer silver halide color photographic material.
REFERENCES:
patent: 2360290 (1941-07-01), Vittum
patent: 2418613 (1945-07-01), Allen
patent: 2675314 (1951-04-01), Vittum
patent: 2701197 (1955-01-01), Thirtle et al.
patent: 3069262 (1962-12-01), Haas
patent: 3215717 (1965-11-01), Foster
patent: 3432300 (1969-03-01), Lestina et al.
patent: 3457079 (1969-07-01), Koda et al.
patent: 3573050 (1971-03-01), Branrock
patent: 3574626 (1971-04-01), Kunitz et al.
patent: 3574627 (1971-04-01), Stern et al.
patent: 3698909 (1972-10-01), Lestina et al.
patent: 3764337 (1973-10-01), Arai et al.
patent: 3932324 (1976-01-01), Stretanski
patent: 4015990 (1977-04-01), Ishida et al.
patent: 4540653 (1985-09-01), Nishijima et al.
Doody Patrick
Konishiroku Photo Industry Co,., Ltd.
Michl Paul R.
LandOfFree
Method for increasing color-fastness of organic coloring matter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for increasing color-fastness of organic coloring matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for increasing color-fastness of organic coloring matter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1505725