| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation apparatus capable of improving printability to plasma-pretreated coat paper by changing a material composing an inkjet ink.SOLUTION: An image formation apparatus 1 includes: pretreatment means 100 configured to bring a surface of a recording medium 20 into contact with plasma; and image formation means 170 configured to discharge an ink to the recording medium to form an image. The ink at least includes a pigment, water, a water-soluble organic solvent and a resin particle. The water-soluble organic solvent is an amide compound with an inorganic/organic value (I/O value) of 1.1-2.0. The resin particle is a polyurethane resin particle of ether system, and has an acid group amount of 2.0 meq/g more.SELECTED DRAWING: Figure 1 |
