| 摘要 |
PURPOSE:To obtain a diazo copying material to be high in storage stability before use, and good in texture evenness, and able to form a good copy image, by adding isotrialkylcyanuric acid or isotrialkylolcyanuric acid as a dissolution adjuvant to a photosensitive layer containing a diazo compound and a coupler. CONSTITUTION:A photosensitive layer containing isotrialkylcyanuric acid or trialkylolcyanuric acid as a dissolution adjuvant is formed on a support of paper or the like. This layer is a 2-component type containing a diazo compound and a coupler, and it may contain lowe alcohols, a purine base, such as caffeine, a nitrogen-containing carbonyl compound, such as thiourea, and a surfactant. Addition of sid isocyanuric acid derivative permits storage stability of thie photosensitive layer before exposure and evenness of texture to be improved, and a good copy image to be obtained. |
