Color-developing agent, silver halide photographic light-sensiti

Details Color-developing agent, silver halide photographic light-sensiti Color-developing agent, silver halide photographic light-sensiti

1996-11-26

1998-12-22

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430264, 430348, 430349, 430351, 430448, 430467, G03C 142

Patent

active

058517499

ABSTRACT:
There is disclosed novel color-developing agents of the formula (I). There is also disclosed silver halide photographic light-sensitive materials and image-forming methods, using the color-developing agent. The color-developing agent is excellent in color-forming property, and the image obtained from the color-developing agent is good in stability of hue and image. ##STR1## wherein Z.sup.1 represents an acyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group, or a carbonimidoyl group, Q.sup.1 represents a group of atoms required to form a 5- or 6-membered aromatic ring together with the C, Q.sup.2 represents a heterocyclic residue, Y.sup.1 represents a group capable of substitution onto the aromatic ring, m is 1 or 2, and n is an integer of 0 to 3.

REFERENCES:
patent: 4481268 (1984-11-01), Bailey et al.
patent: 4740453 (1988-04-01), Nakamura et al.

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