申请人:FUJIFILM Corporation
公开号:EP2412765A1
公开(公告)日:2012-02-01
An inkjet recording method is provided that includes an image formation step of forming an image on a recording medium by discharging an ink composition that includes (Component A) and (Component B), and a curing step of curing the discharged ink composition by irradiating with UV using a light-emitting diode that emits UV having an emission peak wavelength in the range of 300 to 400 nm so that the maximum illumination intensity on the recording medium surface is 600 to 1,600 mW/cm2.
(Component A) a polymerizable composition that includes Component A-1 to Component A-3
(Component A-1) an N-vinyllactam,
(Component A-2) a compound represented by Formula (a-2)
(In Formula (a-2), R1, R2, and R3 independently denote a hydrogen atom, a methyl group, or an ethyl group, and X2 denotes a single bond or a divalent linking group.),
(Component A-3) a polyfunctional (meth)acrylate, the total content of monofunctional polymerizable compounds including Component A-1 and Component A-2 being at least 40 wt% in the ink composition,
(Component B) a polymerization initiator that includes Component B-1 and Component B-2
(Component B-1) an acylphosphine compound,
(Component B-2) a thioxanthone compound and/or a thiochromanone compound,
(Component B-1 total weight) ≥ (Component B-2 total weight)} being satisfied. There is also provided a printed material recorded by the inkjet recording method.
本发明提供了一种喷墨记录方法,该方法包括图像形成步骤,即通过放电墨水组合物在记录介质上形成图像,该墨水组合物包括(组分 A)和(组分 B);以及固化步骤,即使用发射峰值波长在 300 至 400 纳米范围内的紫外线的发光二极管用紫外线照射放电的墨水组合物,使记录介质表面上的最大照明强度为 600 至 1 600 mW/cm2。
(成分 A)一种可聚合组合物,包括成分 A-1 至成分 A-3
(组分 A-1)一种 N-乙烯内酰胺、
(成分 A-2)由式(a-2)表示的化合物
式(a-2)中,R1、R2 和 R3 独立地表示氢原子、甲基或乙基,X2 表示单键或二价连接基团、
(组分 A-3)一种多官能团(甲基)丙烯酸酯,包括组分 A-1 和组分 A-2 在内的单官能团可聚合化合物在油墨组合物中的总含量至少为 40 wt%、
(组分 B)聚合引发剂,包括组分 B-1 和组分 B-2
(组分 B-1)一种酰基膦化合物、
(组分 B-2)硫氧杂蒽酮化合物和/或硫代色原酮化合物、
满足(组分 B-1 总重量)≥(组分 B-2 总重量)}。还提供了一种用喷墨记录方法记录的印刷材料。