Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1993-06-09

1994-02-08

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430598, 430566, 430487, 564149, 564151, 564282, 564291, 564 12, G03C 106

Patent

active

052847322

ABSTRACT:
A silver halide light-sensitive material containing a hydrazine compound represented by formula (I): ##STR1## wherein L.sup.1 represents a single bond, --O--, --S--, --NR.sup.6 --, --CO--, SO.sub.2 --, --P(O) (G.sup.2 R.sup.6)-- or a combination thereof; L.sup.2 represents --SO.sub.2 NR.sup.6 --, --NR.sup.6 SO.sub.2 NR.sup.6 --, --CONR.sup.6 --, --NR.sup.6 CONR.sup.6 -- or --G.sup.2 P(O) (G.sup.2 R.sup.6)NR.sup.6 --; G.sup.1 represents --CO--, --SO.sub.2 --, --SO--, --COCO--, a thiocarbonyl group, an iminomethylene group or --P(O) (G.sup.2 R.sup.6)--; G.sup.2 represents a single bond, --O-- or --NR.sup.6 --; R.sup.1 represents an aliphatic group or an aromatic group; R.sup.2, R.sup.3, and R.sup.4 each represent a divalent aliphatic group or a divalent aromatic group; R.sup.5 represents a hydrogen atom, an aliphatic group, an aromatic group, an alkoxy group, an aryloxy group or an amino group; R.sup.6 represents a hydrogen atom, an aliphatic group or an aromatic group; m represents 0 or 1; and X.sup.- represents a counter anion or a counter anion moiety of an intramolecular salt, as a nucleating agent. The light-sensitive material exhibits high processing stability even in rapid processing to provide a ultrahigh contrast negative image for photomechanical processing.

REFERENCES:
patent: 4383948 (1983-05-01), Muller et al.
patent: 4824774 (1989-04-01), Inoue et al.
patent: 4988604 (1991-01-01), Machonkin et al.
patent: 4994365 (1991-02-01), Looker et al.
patent: 5126227 (1992-06-01), Machonkin et al.
patent: 5213944 (1993-05-01), Adin
patent: 5229248 (1993-07-01), Sanpei et al.

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