Silver halide photographic light-sensitive material and method o

Details Silver halide photographic light-sensitive material and method o Silver halide photographic light-sensitive material and method o

1987-11-20

1989-07-18

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430949, 430599, 430609, 430266, 430267, 430444, 430445, 430446, 430448, G03C 133, G03C 526

Patent

active

048493198

ABSTRACT:
A negative silver halide photographic material comprising a support and at least one silver halide emulsion layer on the support, the emulsion layer or other hydrophilic colloid layer containing a hydrazine derivative, wherein the photographic material further contains an acid polymer and in which the pH of the surface of the photographic material is not more than 5.8. Also, a method for forming a superhigh contrast negative image using the above photographic material is disclosed.

REFERENCES:
patent: 2853457 (1958-09-01), Gates, Jr.
patent: 3488708 (1970-01-01), Smith
patent: 3607290 (1971-09-01), Butler
patent: 4269929 (1981-05-01), Nothnagle
patent: 4332878 (1982-06-01), Akimura et al.
patent: 4560638 (1985-12-01), Loblaw et al.

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