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US 2012/0069082 A1Published application
Inkjet recording method
AssigneeFUJIFILM Corporation
InventorYuuichi HAYATA
Life of this patent
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Abstract
An inkjet recording method is provided in which image formation is carried out by employing an ink set, the inks of each color including a polymerizable compound and a polymerization initiator, and discharge of the inks being repeated 2 to 16 times for the same area.
Claims17
An inkjet recording method in which image formation is carried out by:
- employing an ink set comprising at least a cyan ink, a magenta ink, a yellow ink, and a black ink;
- the inks of each color comprising a polymerizable compound and a polymerization initiator;
- the polymerizable compound in the inks of each color comprising (Component A) at least one type of polymerizable compound selected from the group consisting of an N-vinyllactam, a compound represented by Formula (1), and a compound represented by Formula (2), and (Component B) at least one type of polymerizable compound selected from the group consisting of a compound represented by Formula (3) and a compound represented by Formula (4);
- the total content of Component A and Component B in the inks of each color being 55 to 85 wt % relative to the entire weight of the ink;
- and discharge of the inks being repeated 2 to 16 times for the same area;
- the method comprising at least
- (1) a step of discharging an ink via an inkjet head;
- (2) a step of irradiating the discharged ink with actinic radiation by exposure means having an illumination intensity of at least 50 mW/cm2 but less than 500 mW/cm2 at a time between 0 and 1.0 second after ink discharge so that the integrated exposure for a wavelength region of 240 to 400 nm is no greater than 40 mJ/cm2;
- and
- (3) a step of irradiating the discharged ink with actinic radiation by exposure means having an illumination intensity of at least 500 mW/cm2 after at least 1.0 second has passed after ink discharge so that the integrated exposure for a wavelength region of 240 to 400 nm is 20 to 250 mJ/cm2;
- wherein in the Formula, R1 and R2 denote a hydrogen atom or a methyl group, and X1 and X2 denote a single bond or a divalent linking group,
- wherein in the Formula, R3 and R15 denote a hydrogen atom or a methyl group, R4 to R14 independently denote a hydrogen atom or an alkyl group, and X3 and X4 denote a single bond or a divalent linking group.
9 more elements
Dependencies are inferred from the claim text.