Silver halide photographic emulsion

Details Silver halide photographic emulsion Silver halide photographic emulsion

1996-05-17

1998-07-14

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, G03C 1005

Patent

active

057802165

ABSTRACT:
A silver halide photographic emulsion contains silver iodobromide tabular grains with a quintuple structure in which the amount of silver in a core is 20 to 50% of the total silver amount, the average silver iodide content of the core is 0 to 5 mol %, the amount of silver in a first shell is 5 to 30% of the total silver amount, the average silver iodide content of the first shell is 15 to 40 mol %, the amount of silver in a second shell is 10 to 30% of the total silver amount, the average silver iodide content of the second shell is 0 to 5 mol %, the amount of silver in a third shell is 1 to 10% of the total silver amount, the average silver iodide content of the third shell is 20 to 100 mol %, the amount of silver in a fourth shell is 10 to 40% of the total silver amount, and the average silver iodide content of the fourth shell is 0 to 5 mol %.

REFERENCES:
patent: 4614711 (1986-09-01), Sugimoto et al.
patent: 4668614 (1987-05-01), Takada et al.
patent: 4692400 (1987-09-01), Kumashiro et al.
patent: 5591570 (1997-01-01), Takiguchi et al.

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