An ink composition contains (component A) a high-molecular-weight polymerization initiator having a weight-average molecular weight of equal to or greater than 1,000, (component B) a polymerizable compound, and (component C) a colorant, in which the component A has an acylphosphine oxide structure, and the acylphosphine oxide structure is linked to a main chain or a core of the component A on the side of an acyl group thereof.
一种墨
水组合物包含(组分A)高分子量的聚合
引发剂,其重量平均分子量等于或大于1,000,(组分B)可聚合化合物和(组分C)色素。其中,组分A具有酰基氧化膦结构,并且酰基氧化膦结构连接到其酰基侧的组分A的主链或核心。