Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1986-04-29
1989-04-04
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430523, 430567, 430607, G03C 102, G03C 108
Patent
active
048186694
ABSTRACT:
This invention relates to a silver halide emulsion containing halogen conversion-type silver halide grains and light sensitive material comprising such as emulsion. The grains are selected from the group consisting of halogen conversion-type silver chlorobromide grains, halogen conversion-type silver iodobromide grains and halogen conversion-type chloroiodobromide grains, the grains having substantially no surface sensitivity, the average grain size thereof being not more than 0.30 micron, and the grains containing from 0 to 4 mol % of silver iodide.
The grains have particularly high ability to trap iodide ions so that light-sensitive material comprising the emulsion containing the grains have law dependence on formulation of developing solution and improved properties in connection with sensitivity, fog, gamma, maximum density.
REFERENCES:
patent: 4444874 (1984-04-01), Silverman et al.
patent: 4452882 (1984-06-01), Akimura et al.
patent: 4550070 (1985-10-01), Miyasaka et al.
patent: 4728596 (1988-03-01), Takaki et al.
Ikeda Hideo
Suga Shuzo
Fuji Photo Film Co. , Ltd.
Michl Paul R.
Wright Lee C.
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