Tubular silver halide photosensitive materials sensitized with a

Details Tubular silver halide photosensitive materials sensitized with a Tubular silver halide photosensitive materials sensitized with a

1987-12-01

1989-10-24

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430139, 430572, 430573, 430574, 430570, 430576, G03C 112, G03C 128

Patent

active

048761834

ABSTRACT:
A silver halide photosensitive material comprising a support having thereon at least one silver halide emulsion layer comprising tabular grains whose diameter of an average projected area/average thickness ratio is 5/1 or higher is provided. Said emulsion layer contains one or more luminescent dyes whose luminescence quantum yield is 0.3 or more when its concentration is dry gelatin is 10.sup.-4 mol/dm.sup.3 at room temperature and that can be substantially removed by development processing, and the content of said luminescent dye is 3.0 .mu.mol/m.sup.2 or more for the total surface area of the silver halide grains in said emulsion layer, or is 2.0 mmol/dm.sup.3 or more in a hydrophilic dispersion medium excluding the silver halide grain surfaces in said emulsion layer.

REFERENCES:
patent: 3622316 (1971-11-01), Bird et al.
patent: 4040825 (1977-08-01), Steiger et al.
patent: 4439520 (1984-03-01), Krofron et al.
patent: 4520098 (1985-05-01), Dickerson
patent: 4543308 (1985-09-01), Schumann et al.

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