Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1997-09-29
1999-11-09
Letscher, Geraldine
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430503, 430505, 430571, 430944, G03C 146
Patent
active
059811544
ABSTRACT:
A silver halide color photographic material is disclosed which comprises a support and provided thereon, a first silver halide emulsion layer comprising at least one yellow image forming silver halide emulsion, a second silver halide emulsion layer comprising-at least one magenta image forming silver halide emulsion and a third silver halide emulsion layer comprising at least one cyan image forming silver halide emulsion, wherein at least one of said first, second and third silver halide emulsion layers further contains a fourth silver halide emulsion, each one of said first, second, third and fourth silver halide emulsions has a spectral sensitivity wavelength region at least six times higher than that in the wavelength region of the other three emulsions, and said fourth silver halide emulsion gives an optical density after development of 0.7 or more.
REFERENCES:
patent: 5185237 (1993-02-01), Kawai
patent: 5232826 (1993-08-01), Bucci et al.
patent: 5413902 (1995-05-01), Hara et al.
patent: 5541040 (1996-07-01), Okawauchi et al.
Patent Abstracts of Japan (1 pg) Publ. #JP5134350 Publication Date: May 28, 1993.
Ohkawachi Susumu
Sasagawa Masayuki
Tosaka Yasuo
Bierman Jordan B.
Konica Corporation
Letscher Geraldine
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