Silver halide photographic light-sensitive material

Details Silver halide photographic light-sensitive material Silver halide photographic light-sensitive material

1983-03-31

1984-01-17

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430600, 430603, G03C 128

Patent

active

044264453

ABSTRACT:
A silver halide photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer. The material contains at least one compound selected from the group consisting of a compound represented by the following general formula (I) and a compound represented by the following general formula (II) in at least one layer of the silver halide emulsion layer and other hydrophilic colloid layers thereof; ##STR1## wherein R represents an alkyl group having 1 to 6 carbon atoms which may be substituted, an aryl group having 6 to 11 carbon atoms which may be substituted, or an aralkyl group having 7 to 12 carbon atoms which may be substituted; A represents a .sigma. bond or a divalent connecting group which links R and the nitrogen atom; R.sub.1 and R.sub.2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms which may be substituted, or an aralkyl group having 7 to 11 carbon atoms which may be substituted, or when A represents a .sigma. bond, R.sub.1 and R.sub.2 each may represent an atomic group necessary to form a heterocyclic ring containing the quaternary nitrogen atom together with R; a and b each represents 0 or a positive integer, provided that a and b are not both 0; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represents hydrogen or an alkyl group having 1 to 6 carbon atoms which may be substituted and when b is not 0, at least one of R.sub.5 and R.sub.6 is a different group from R.sub.3 or R.sub.4 ; B represents --COO or --SO.sub.3 ; and Z represents an atomic group necessary to form a heterocyclic ring.
The photographic light-sensitive material has a high sensitivity without being accompanied by an undesirable increase in the formation of fog.

REFERENCES:
patent: 3617280 (1971-11-01), Huckstadt et al.
patent: 3706562 (1972-12-01), Herz et al.
patent: 3843368 (1974-10-01), Yamamoto et al.

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