High contrast photographic recording material and emulsion and p

Details High contrast photographic recording material and emulsion and p High contrast photographic recording material and emulsion and p

1988-05-31

1990-03-27

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430410, 430598, G03C 106

Patent

active

049120166

ABSTRACT:
A photographic recording material and emulsion are described which are capable of providing high contrast images. The recording material and emulsion comprises negative working silver halide and contrast enhancing arylhydrazide nucleating agents. A process for utilization of the elements and emulsions is also described.

REFERENCES:
patent: 4323643 (1982-04-01), Mifune et al.
patent: 4429036 (1984-01-01), Hirano et al.
patent: 4540655 (1985-10-01), Takagi et al.
patent: 4681836 (1987-07-01), Inoue et al.

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