申请人:Fujifilm Corporation
公开号:EP2368946A1
公开(公告)日:2011-09-28
The present invention provides an inkjet ink composition, which is excellent in dispersion stability, discharge reliability and suppression of lowering of liquid repellency of the inkjet head member, and which includes a pigment, a polymer compound, a water soluble organic solvent, a silicon compound and water, the polymer compound including a structural unit represented by Formula (1), a structural unit represented by Formula (2), and a structural unit represented by Formula (3); the water soluble organic solvent being a diol compound including a repetition structure formed from oxyalkylene groups having 2 or 3 carbon atoms; and the silicon compound being selected from the group consisting of colloidal silica and water-soluble alkali metal salts of silicic acid:
wherein R1 to R3 each independently represents a hydrogen atom or a methyl group; R4 represents an alkyl group having 1 to 10 carbon atoms; and n is 1 to 20.
本发明提供了一种喷墨墨水组合物,该组合物在分散稳定性、放电可靠性和抑制喷墨头部件斥液性降低方面性能优异,它包括颜料、聚合物化合物、水溶性有机溶剂、硅化合物和水,聚合物化合物包括由式(1)表示的结构单元、由式(2)表示的结构单元和由式(3)表示的结构单元;水溶性有机溶剂是二元醇化合物,包括由具有 2 或 3 个碳原子的氧亚烷基形成的重复结构;硅化合物选自由胶体二氧化硅和水溶性硅酸碱金属盐组成的组:
其中 R1 至 R3 各自独立地代表氢原子或甲基;R4 代表具有 1 至 10 个碳原子的烷基;n 为 1 至 20。