Silver halide photographic light-sensitive material capable of o

Details Silver halide photographic light-sensitive material capable of o Silver halide photographic light-sensitive material capable of o

1989-03-02

1990-12-11

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430598, G03C 134

Patent

active

049770632

ABSTRACT:
A silver halide photographic light-sensitive material is disclosed, which is inhibited in formation of pepper spot in a halftone image and capable of making extremely high contrast image thereon. The light-sensitive material contains a compound represented by the following formula: ##STR1## wherein A.sub.1 and A.sub.2 are each an arylene group or a divalent heterocyclic group; L is a linking group;z is a formyl group, an acyl group, a sulfonyl group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, a thioacyl group or a ##STR2## group; X is --NR.sub.6 R.sub.7 or --OR.sub.8, in which R.sub.6 and R.sub.7 are each a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a heterocyclic group, a hydroxy group, an alkoxy group, an alkenylkoxy group, an alkynyloxy group, an aryloxy group, or a heterocyclic oxy group, and R.sub.8 is a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; n is 1 or 2; m is 0 or 1; R.sub.1 and R.sub.2 are each a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group or an amino group, provided that when n is 1, at least one of the R.sub.1 and R.sub.2 is an amino group; R.sub.3 is a hydrogen atom or an alkyl group; and R.sub.4 and R.sub.5 are each a hydrogen atom or a substituent.

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