| abstract |
PURPOSE: To prevent occurrence of fog by incorporating a specified 1-phenyl-3- pyrazolidinone derivative in a photographic material. n CONSTITUTION: The photographic material contains, in a silver halide emulsion layer or a hydrophilic colloidal layer related to this emulsion layer in water permeation, the 1-phenyl-3-pyrazolidinone derivative represented by formula I in which A is a group to be adsorbed to the faces of silver halide grains, such as a thiourea or triazole or mercaptotetrazole residue; L is a divalent bonding group; (r) is 0 or 1; and each of R 1 and R 2 is an H atom or an optionally substituted lower alkyl group. n COPYRIGHT: (C)1992,JPO |