Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1986-07-30
1988-04-26
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430 17, 430351, 430353, 430619, 430955, 430617, G03C 554, G03C 106
Patent
active
047404450
ABSTRACT:
A color image is formed in an image forming reaction system comprising a photographic heat-developable silver halide light-sensitive material by reacting a difficultly soluble metal compound, for example, calcium carbonate with a compound capable of water-mediated complexing reaction with the metal ion of the difficultly soluble metal compound and having an organic base, for example, guanidine oxalate in the presence of water to increase the pH of the system.
REFERENCES:
patent: 3260598 (1966-07-01), Yutzy et al.
patent: 4514493 (1985-04-01), Hirai et al.
patent: 4657848 (1987-04-01), Sato et al.
Hirai Hiroyuki
Sato Kozo
Yabuki Yoshiharu
Doody Patrick A.
Fuji Photo Film Co. , Ltd.
Michl Paul R.
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