申请人:Konica Minolta Holdings, Inc.
公开号:EP2042304A1
公开(公告)日:2009-04-01
A method of plate making in which while utilizing the characteristics of convenience and high productivity attained by inkjet process, there are improved the plate life, resolving power and inking property having been problems of inkjet process plate making, and in which realizing high hardening sensitivity, plate making can be accomplished by a simple apparatus with the use of low-viscosity inkjet ink; and a lithographic printing plate obtained by the method.; There is provided a method of plate making through the sequential procedure of applying a plate making ink onto a printing plate material according to an inkjet recording technique, irradiating the ink with actinic energy rays, evaporating the ink solvent and drying to thereby attain image forming and thus obtain a printing plate, characterized in that the plate making ink contains at least water and an actinic energy ray hardening polymeric compound of 200 to 4000 polymerization degree amounting to 0.8 to 5.0 mass% based on the total mass of the ink. The polymeric compound in its main chain has multiple side chains such that therebetween, crosslink bonding can be effected by irradiation with actinic energy rays.
一种制版方法,该方法在利用喷墨工艺所具有的方便性和高生产率特点的同时,改善了喷墨工艺制版一直存在的版材寿命、解像力和着墨性能问题,并实现了高硬化灵敏度,使用低粘度喷墨墨水即可通过简单的设备完成制版;以及通过该方法获得的平版印刷版材。提供了一种制版方法,该方法按照喷墨记录技术,将制版墨水涂抹在印版材料上,用放电能量射线照射墨水,蒸发墨水溶剂并干燥,从而实现图像成形,进而获得印版,其特征在于,制版墨水至少含有水和聚合度为 200 至 4000 的放电能量射线硬化高分子化合物,占墨水总质量的 0.8 至 5.0%。该聚合化合物的主链上有多个侧链,因此,通过用辐射能射线照射,可在侧链间形成交联键。