| 摘要 |
PURPOSE:To obtain a photosensitive material small in change of photographic characteristics, such as deterioration of sensitivity and increase of fog, due to time lapse by forming a silver halide emulsion layer spectrally sensitized with a novel merocyanine dye. CONSTITUTION:The photosensitive material stable in storage under high temp. and high humidity, sensitivity, fog, and gradation, and especially high in green- sensitivity can be obtained by incorporating in the silver halide emulsion layer as a spectral sensitizer a compd. represented by the formula shown here in which Z is a nonmetallic atomic group necessary for forming an oxazolidine ring, 3H-oxazole ring, 3H-benzoxazole ring, or 3H-naphthoxazole ring; R1 is alkyl; R2 is halogen, alkyl, alkoxy, or H; (A) is CN, alkylsulfonyl, sulfonamide, alkylsulfonylamino, or lower alkoxy; and n is 1-4. |
