| 摘要 |
PURPOSE: To make it possible to attain dot reduction without decreasing an optical density by using a photosensitive material contg. specific coloring materials and an etching soln. contg. a specific base and org. solvent. CONSTITUTION: The photosensitive material is constituted by forming an uncured gelatin layer contg. at least one coloring materials on a base, forming a gelatin top coating layer which allows tanning on the layer and incorporating photosensitive silver halide into at least one of both of these layers. The photosensitive material is processed with the etching soln. in order to reduce the halftone dots after exposing imagewise, followed by developing. The coloring materials used in the system include at least one acidic groups, are stable in the soln. for processing and form the soluble salts in the org. solvent together with bases. The etching soln. include the at least one bases which are aqueous and are capable of ionizing the coloring agents and org. materials for the formed ion pairs. |
