Silver halide photographic light sensitive material

Details Silver halide photographic light sensitive material Silver halide photographic light sensitive material

1988-08-09

1989-09-05

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430558, G03C 726, G03C 738

Patent

active

048638420

ABSTRACT:
A silver halide photographic light sensitive material, which contains at least one magenta dye image forming coupler expressed by the following general formula [I], at least one piperazine or homopiperazine compound expressed by the following general formula [XIIIa], at least one compound selected from a coumarane or a chroman compounds expressed by general formula [XIIIa] and hydroxyindane compounds expressed by [XIIIb], below, is described as being stable to light and moisture, and featuring an excellent color reproducibility. ##STR1## The effect of the invention is further improved by additionally employing a metallic compound wherein an optical quenching rate of singlet oxygen is more than 3.times.10.sup.7 M.sup.-1 .multidot.sec.sup.-1.

REFERENCES:
patent: 2343703 (1944-03-01), Porter et al.
patent: 3725067 (1973-04-01), Bailey et al.
patent: 3770447 (1973-11-01), Boie et al.
patent: 4243747 (1981-01-01), Nakamura et al.
patent: 4489155 (1984-12-01), Sakanoue et al.
patent: 4752561 (1988-06-01), Nishijima et al.
patent: 4795696 (1989-01-01), Sasaki et al.

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