Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1993-09-16

1995-10-31

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430582, 430583, 430592, 430578, G03C 120

Patent

active

054628512

ABSTRACT:
A silver halide photographic material is disclosed which contains at least one methine dye represented by the following formula (I) or (II): ##STR1## wherein Z.sub.1 and Z.sub.2 each represents an atomic group for forming a five-membered or six-membered nitrogen-containing heterocyclic ring; R.sub.1, R.sub.2, R.sub.4 and R.sub.5 each represents an alkyl group; R.sub.3 and R.sub.6 each represents an alkyl group, an aryl group or a heterocyclic group; V.sub.1 to V.sub.12 each represents a hydrogen atom or a substituent; L.sub.1 to L.sub.10 each represents a methine group; M.sub.1 and M.sub.2 each represents an ion for neutralizing charge; m.sub.1 and m.sub.2 each represents a number of 0 or more which is required for neutralizing charge; and n.sub.1 and n.sub.2 each represents 0 or 1.

REFERENCES:
patent: 3734739 (1973-05-01), Borror
patent: 5037733 (1991-08-01), Goda
The Theory of the Photographic Process, Fourth Edition, T. H. James (1989), pp. 216-217.

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