申请人:FUJIFILM Corporation
公开号:EP3936341A1
公开(公告)日:2022-01-12
Provided are an ink composition in which intercolor bleeding can be suppressed, and decrease in storage stability is suppressed; an ink set including the ink composition; and an image forming method using the ink composition. The ink composition includes a resin-coated pigment in which at least a part of pigments is coated with a cross-linked resin, a betaine compound (1) represented by Formula (1), and water. R1 represents an alkyl group having 6 to 20 carbon atoms, R2 and R3 each independently represent a chain hydrocarbon group having 1 to 3 carbon atoms, L1 represents a single bond or a divalent linking group, L2 represents a divalent linking group, and A- represents a -SO3- group or a -COO- group.
本发明提供了一种油墨组合物,在该油墨组合物中可抑制色间渗色,并可抑制储存稳定性的降低;一种包括该油墨组合物的油墨组;以及一种使用该油墨组合物的图像形成方法。该油墨组合物包括至少一部分颜料被交联树脂包覆的树脂包覆颜料、由式(1)表示的甜菜碱化合物(1)和水。R1 代表具有 6 至 20 个碳原子的烷基,R2 和 R3 各自独立地代表具有 1 至 3 个碳原子的链烃基,L1 代表单键或二价连接基,L2 代表二价连接基,A- 代表 -SO3- 基团或 -COO- 基团。