| 摘要 |
PURPOSE:To minimize water solubility and obtain an adequate desensitization effect even with a small swell of desensitizing ink showing outstanding printing properties not only in desensitization printing of photogravure, flexography and relief printing system but also in wet type offset printing by adding an aminoester acetate derivative with a specific part structure to ink. CONSTITUTION:Desensitization ink contains an aminoester acetate derivative with a part structure-CH2CH2N(CH2COOR)2. Consequently, desensitization ink for the inhibition or blocking of color development of coloring matter precursor used for pressure-sensitive copying paper is obtained. R is an alkyl group, a cycloalkyl group, an aralkyl group or an aryl group, each with 1-18 carbon atoms. |
