Direct positive photographic light-sensitive material

Details Direct positive photographic light-sensitive material Direct positive photographic light-sensitive material

1988-12-02

1990-10-30

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

G03C 1485

Patent

active

049668366

ABSTRACT:
A direct positive photographic light-sensitive material comprising a support having thereon at least one internal latent image type silver halide emulsion layer not having been previously fogged, wherein the photographic light-sensitive material contains at least one nucleating agent represented by a specific formula and at least one nucleating accelerating agent selected from compounds represented by two specific formulae. The direct positive photographic light-sensitive material according to the present invention provides direct positive images having a high maximum image density and a low minimum image density, and is less susceptible to change in photographic properties such as reduction in the maximum image density and increase in the minimum image density when it is preserved under high temperature and/or high humidity conditions.

REFERENCES:
patent: 4115122 (1978-09-01), Adachi et al.
patent: 4481285 (1984-11-01), Takagi et al.
Patent Abstracts of Japan, vol. 10, No. 15 (P-422) [2072] 1/21/86, for JP-A-60170843 (Konishiroku Shashin Kogyo K.K.) 9/4/85.

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