| 摘要 |
<p>PURPOSE:To obtain a desensitized ink prevented from causing migration after printing, excellent in printing workability and enabling a stable ink production by using a desensitizer composed of a specified amine compd. and an ultraviolet- curable vehicle. CONSTITUTION:An amine-alkylene oxide adduct of the formula having a mol.wt. of 500-3.000 (wherein R1, R2, R4 and R5 are each propylene oxide, butylene oxide, styrene oxide or the like, and R3 is 3C or higher branched chain alkylene) is used as a desensitizer. An ultraviolet-curable material (e.g. ethylene glycol acrylate) is used as an ink vehicle. A desensitized ink for ultraviolet-curable pressure-sensitive copying paper prepd. from these materials is prevented from causing migration after, printing excellent in workability and capable of stabilizing the ink production process.</p> |
