| abstract |
This image formation method and cardboard have the following characteristics. A process liquid having at least one acidic compound and a pH of 2 or less is provided to a cardboard base material in which L * ≤ 90; a first ink composition, which includes a color material and water and in which the total content of resin particles and wax particles is 2 mass% or less relative to the total mass of the first ink composition, is provided to the process-liquid-treated surface of the cardboard base material which is treated with the process liquid under the condition that the amount of droplets be 10 p1 or more through the inkjet method; and a second ink composition, which includes a resin, wax, and water, and in which the color material content is 0.5 mass% or less relative to the total mass of the second ink composition, is provided over the first ink composition provided to the cardboard base material. |