Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1987-09-28
1989-11-14
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430940, G03C 716
Patent
active
048807273
ABSTRACT:
A direct positive photographic material comprising a support having provided thereon one or more hydrophilic colloid containing layers, wherein at least one of said hydrophilic colloid containing layers is an internal latent image type silver halide emulsion which has not been previously fogged and at least one of said emulsion layer or other hydrophilic colloid containing layer contains a colloidal metal or a colloidal water-insoluble metallic sulfide, selenide or telluride, and a method for forming a direct positive from the direct positive photographic material in which a light-sensitive material contains at least two layers containing colloidal silver.
REFERENCES:
patent: 4613563 (1986-09-01), Murai
patent: 4749644 (1988-06-01), Tosaka et al.
Heki Tatsuo
Inoue Noriyuki
Fuji Photo Film Co. , Ltd.
Martin Roland E.
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