| 摘要 |
PURPOSE:To provide an antihalation method for a diffusion transfer type silver halide negative photosensitive material instead of the method of using carbon black by incorporating an antihalation layer contg. at least one kind of oil-soluble dyes represented by formula I. CONSTITUTION:A silver halide emulsion layer is formed on the side of a support same as the antihalation layer in the silver salt diffusion transfer type photosensitive material, and the antihalation layer is characterized by contg. at least one of oil-soluble dyes represented by formula I in which R1-R8 are each H, halogen, hydroxy, alkoxy, amino or optionally substd. amino. It is preferable to form this antihalation layer on the support and said silver halide emulsion layer on this antihalation layer to prepare the silver salt diffusion transfer type photosensitive material, and besides, it is preferable in another mode to form the antihalation layer contg. this oil-soluble dye and a developer on the support, and forming a silver halide emulsion layer on the same side as the antihalation layer with respect to the support to prepare a photosensitive material. |
