Abstract:
Disclosed is an image formation method comprising, in sequence, an image layer formation step of forming an image layer by discharging at least one radiation curable inkjet colored ink composition onto a recording medium, and a clear layer formation step of forming a clear layer by discharging a radiation curable inkjet clear ink composition onto the image layer, the radiation curable inkjet colored ink composition comprising a monofunctional polymerizable compound in an amount of at least 50 mass % of polymerizable compounds, the radiation curable inkjet clear ink composition comprising a polyfunctional polymerizable compound in an amount of at least 50 mass % of the polymerizable compounds, and in the clear layer formation step the radiation curable inkjet clear ink composition being dispersed above the image layer to thus form a non-continuous clear layer.
Abstract:
An ink pack is a laminate pack which at least one layer of an aluminum layer or an aluminum alloy layer and at least one layer of a plastic layer are laminated. An ultraviolet curable type inkjet ink composition which contains a compound having a nitroxyl radical, and has 1.2×1016 to 3.0×1019 of the spin number of the nitroxyl radical in one milliliter of the ink composition, is sealed in the ink pack.