Method for producing silver halide photographic emulsion and sil

Details Method for producing silver halide photographic emulsion and sil Method for producing silver halide photographic emulsion and sil

1989-02-10

1991-05-14

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430603, 430605, 430611, 430615, G03C 109, G03C 134

Patent

active

050155679

ABSTRACT:
A silver halide photographic emulsion is subjected to sulfur or gold-sulfur sensitization in the presence of a combination of (1) at least one of an organic thioether compound or a tetrasubstituted thiourea and (2) a nitrogen-containing heterocyclic compound, to achieve the prevention of pressure desensitization and safelight aptitude deterioration.

REFERENCES:
patent: 3021215 (1962-02-01), Williams et al.
patent: 3625697 (1971-12-01), Sato et al.
patent: 4266018 (1981-05-01), Ishiguro et al.
patent: 4276374 (1981-06-01), Mitune et al.
patent: 4284717 (1981-08-01), Toya et al.
patent: 4469783 (1984-09-01), Kuwabara et al.
patent: 4469784 (1984-09-01), Heki et al.

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