Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1989-11-27
1990-09-11
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430507, 430522, 430521, 430519, 430359, 430496, G03C 146
Patent
active
049562690
ABSTRACT:
A silver halide color photographic material comprising a support having thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, wherein each of the green-sensitive silver halide emulsion layer, the red-sensitive silver halide emulsion layer and the blue-sensitive silver emulsion layer contains at least one color image forming coupler, and wherein 50% or more of the total projected area of the silver halide grains in at least one of the emulsion layers comprises tabular silver halide grains having a thickness of less than 0.5 .mu.m, a diameter of 0.6 .mu.m or more and an average aspect ratio of 3 or more and the red-sensitive emulsion layer and/or the green-sensitive emulsion layer contains a dye in an amount sufficient to reduce the sensitivity thereof by 20% or more based on the sensitivity of the red-sensitive emulsion layer and/or the green-sensitive emulsion layer containing no dye, the dry film thickness from the photosensitive emulsion layer that is farthest from the support to the photosensitive emulsion layer that is nearest the support is 16.0 .mu.m or less and the swelling ratio of the silver halide color photographic material excluding the support is 1.25 or more.
REFERENCES:
patent: 2538009 (1951-01-01), Keyes et al.
patent: 4439520 (1984-03-01), Kofron et al.
patent: 4564590 (1986-01-01), Sasaki et al.
patent: 4618570 (1986-10-01), Kadowaki et al.
patent: 4833069 (1989-05-01), Hamada et al.
Ikeda Hideo
Ohno Shigeru
Fuji Photo Film Co. , Ltd.
Michl Paul R.
Neville Thomas R.
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