Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1991-02-12
1992-08-18
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430438, 430464, 430487, 430566, G03C 526
Patent
active
051399210
ABSTRACT:
A process of forming super high contrast negative photographic materials in a developer having a pH of from 9.6 to 11.0 wherein the photographic material contains a hydrazine compound and a nucleation accelerator. The nucleation accelerator is represented by formula (Ia):
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Okada Hisashi
Takagi Yoshihiro
Yagihara Morio
Fuji Photo Film Co. , Ltd.
Le Hoa Van
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