Highly-sensitive high-contrast photographic materials

Details Highly-sensitive high-contrast photographic materials Highly-sensitive high-contrast photographic materials

1978-10-10

1980-12-23

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430600, 430613, 430439, G03C 530, G03C 106

Patent

active

042411645

ABSTRACT:
A silver halide photographic material providing very high contrast and negative image photographic characteristics comprising a support having thereon at least one silver halide photographic emulsion layer containing substantially surface latent image type mono-dispersed silver halide grains and providing a negative image, at least one hydrophilic colloid layer of the photographic material containing a compound represented by the general formula (I)

REFERENCES:
patent: 2419975 (1947-05-01), Trivelli et al.
patent: 2444605 (1948-07-01), Heimbach et al.
patent: 2886437 (1959-05-01), Piper
patent: 3333959 (1967-08-01), Hayakawa et al.
patent: 3340058 (1967-09-01), von Konig et al.
patent: 3386831 (1968-06-01), Honig et al.
patent: 3730727 (1973-05-01), Olivares et al.
patent: 3782949 (1974-01-01), Olivares et al.
patent: 3793027 (1974-02-01), Okutsu et al.

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