An ink composition is provided that includes (Component A) at least one compound selected from the group consisting of bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide and 2,4,6-trimethylbenzoyldiphenylphosphine oxide, (Component B) at least one compound selected from the group consisting of 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one, 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]-1-butanone, and 2-benzyl-2-dimethylamino-1-(4-morpholinaphenyl}-1-botanone, (Component C) a thioxanthone compound, (Component D) a polymerization inhibitor, and (Component E) a polymerizable compound, Component C having a content of 0.01 to 5 wt% relative to the total weight of the ink composition, Component D having a content of 0.01 to 5 wt% relative to the total weight of the ink composition, the sum of the content of Component A and the content of Component B being 6.0 to 9.5 wt% relative to the total weight of the ink composition, and the ratio by weight ((A)/(B)) of the content (A) of Component A and the content (B) of Component B being 0.8 to 2.0.
提供了一种油墨组合物,它包括(组分 A)至少一种选自由双(2,4,6-三甲基苯甲酰基)苯基氧化膦和 2,4,6-三甲基苯甲酰基二苯基氧化膦组成的组的化合物,(组分 B)至少一种选自由 2-甲基-1-(4-甲
硫基苯基)-2-吗啉
丙-1-酮组成的组的化合物、2-(二甲基
氨基)-2-[(4-甲基苯基)甲基]-1-[4-(4-吗啉基)苯基]-1-
丁酮和 2-苄基-2-二甲基
氨基-1-(4-吗啉基苯基}-1-
丁酮组成的组中的至少一种化合物,(组分 C)一种
硫杂
蒽酮化合物,(组分 D)一种聚合
抑制剂,和(组分 E)一种可聚合化合物,组分 C 的含量为 0.相对于油墨组合物的总重量,组分 C 的含量为 0.01 至 5 wt%;相对于油墨组合物的总重量,组分 D 的含量为 0.01 至 5 wt%;相对于油墨组合物的总重量,组分 A 的含量与组分 B 的含量之和为 6.0 至 9.5 wt%;组分 A 的含量(A)与组分 B 的含量(B)的重量比((A)/(B))为 0.8 至 2.0。