申请人:AGFA GRAPHICS NV
公开号:US10316204B2
公开(公告)日:2019-06-11
A radiation curable inkjet ink set includes at least a cyan radiation curable inkjet ink, a magenta radiation curable inkjet ink, a yellow radiation curable inkjet ink, and a black radiation curable inkjet ink, each having a viscosity of no more than 50 mPa·s at 25° C. and a shear rate of 90 s−1 and containing: a) at least one non-polymerizable, non-polymeric bisacylphosphine oxide present in a concentration of no more than 4.0 wt % based on the total weight of the radiation curable composition; b) at least one monomer including at least one vinyl ether group and at least one polymerizable group selected from the group consisting of an acrylate group and a methacrylate group; and c) at least one polymerizable or polymeric thioxanthone, with the proviso that if the at least one polymerizable or polymeric thioxanthone contains no tertiary amine group that the radiation curable composition further includes at least one tertiary amine co-initiator selected from the group consisting of ethylhexyl-4-dimethylaminobenzoate, a polymerizable co-initiator containing a tertiary amine and a polymeric co-initiator containing a tertiary amine.
一种辐射固化喷墨墨水组至少包括青色辐射固化喷墨墨水、品红色辐射固化喷墨墨水、黄色辐射固化喷墨墨水和黑色辐射固化喷墨墨水,每种墨水在 25° C 时的粘度不超过 50 mPa-s,剪切速率为 90 s-1,并含有: a) 至少一种不可聚合的非聚合双酰基氧化膦,其浓度不超过辐射固化组合物总重量的 4.b) 至少一种单体,包括至少一个乙烯基醚基团和至少一个可聚合基团,该基团选自由丙烯酸酯基团和甲基丙烯酸酯基团组成的组;c) 至少一种可聚合或聚合硫杂蒽酮,但如果至少一种可聚合或聚合硫杂蒽酮不含叔胺基团,则辐射固化组合物还包括至少一种叔胺助引发剂,该助引发剂选自 4-二甲氨基苯甲酸乙基己酯、含叔胺的可聚合助引发剂和含叔胺的聚合助引发剂组成的组。