Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1999-09-17
2000-09-05
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430569, G03C 106
Patent
active
061140813
ABSTRACT:
There is disclosed a silver halide photographic light-sensitive material comprising a support having thereon at least one of spectrally sensitized light-sensitive silver halide emulsion layers, wherein at least one of the silver halide emulsion layers contains at least two kinds of silver halide emulsions, at least one kind of the emulsions being one in which silver halide grains have been formed and grown in the presence of at least one of nitrogen-containing heterocyclic compounds that are capable of forming a complex with silver; and at least one kind of the emulsions being one in which silver halide grains have been formed and grown in the absence of nitrogen-containing heterocyclic compounds that are capable of forming a complex with silver, and wherein at least one of the said emulsion layers or another hydrophilic colloid layer contains at least one hydrazine derivative nucleating agent, and also at least one nucleating accelerator selected from a group consisting of amine derivatives, onium salts, disulfide derivatives, and hydroxymethyl derivatives. The silver halide photographic light-sensitive material can be processed with a stable developing solution, and provides high sensitivity.
Fuji Photo Film Co. , Ltd.
Le Hoa Van
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