| 摘要 |
PURPOSE:To make easy to see, coloring the color tone of an image part to a blue by incorporating 1-oxybenzotriazole to a photosensitive layer. CONSTITUTION:The titled material is comprised a diazonium salt, a coupler, a zinc chloride and the 1-oxybenzotriazole derivative, by constituting mentioned above, the color tone of the image is colored to the blue, and is strengthened a contrast of the picture towards the surface of a ground, thereby obtaining the obvious copy Thus, in the formula, R is 1-3C alkyl group, a halogen atom, a hydrogen atom, a sulfonic acid group or its salt. |
