Provided are a photocurable ink composition including a resin which contains an amino group having one or more hydrogen atoms on a carbon atom at an α-position and having an amine value of 3.5 mmol/g to 12 mmol/g, and a radically polymerizable monomer, in which the radically polymerizable monomer contains at least one of a monofunctional radically polymerizable monomer or a bifunctional radically polymerizable monomer, a total content of the monofunctional radically polymerizable monomer and the bifunctional radically polymerizable monomer is 50% by mass or greater with respect to a total mass of the photocurable ink composition, and a content of a radically polymerizable monomer containing an acid group in the radically polymerizable monomers is 1.5 mmol or less per 100 g of the photocurable ink composition; and an image forming method performed by using the photocurable ink composition.
本发明提供了一种光固化油墨组合物,包括一种
树脂,该
树脂含有一个
氨基,该
氨基在α位的碳原子上有一个或多个氢原子,胺值为3.5 mmol/g 至 12 mmol/g,以及可辐射聚合单体,其中可辐射聚合单体包含单官能团可辐射聚合单体或双官能团可辐射聚合单体中的至少一种,单官能团可辐射聚合单体和双官能团可辐射聚合单体的总含量占光固化油墨组合物总质量的 50% 或以上,且可辐射聚合单体中含有酸基的可辐射聚合单体的含量为 1.5 mmol 或更少;以及使用该光固化油墨组合物进行图像形成的方法。