| 摘要 |
PURPOSE:To obtain the inexpensive titled material having the excellent sharpness by incorporating one kind of a compd. capable of cleaving a development restrainer by reacting with an oxidant of a developing agent in a photosensitive emulsion layer adjacent to a black colloidal silver contg. layer, and an another photosensitive emulsion layer having substantially the same photosensitivity to said layer, respectively. CONSTITUTION:The titled material comprises plural red sensitive emulsion layer contg. a cyan coupler, plural green sensitive emulsion layer contg. a magenta coupler and plural blue sensitive emulsion layer contg. a yellow coupler and the black colloidal silver contg. layer on a supporting body. In the titled material, at least one kind of the compd. capable of cleaving the development restrainer by reacting a compd. capable of cleaving after reacting with an oxidant of an aromatic primary amine developing agent, with the oxidant of an another molecule of the developing agent, is incorporated in the photosensitive emulsion layer adjacent to the black colloidal silver contg. layer, and the another photosensitive emulsion layer having substantially the same photosensitivity to said layer respectively. Thus, the titled material having the excellent sharpness is obtd. |
