| 摘要 |
PROBLEM TO BE SOLVED: To avoid enlargement and the price increase of a device due to the deterioration of an image or the augmentation of a required exposure energy and instead, upgrade the imaging performance by first applying a plasma treatment to the coloring material layer side of a support by an atmospheric pressure glow discharge and laminating the coloring material layer, when the coloring material layer containing fine metallic particles is laminated on the support. SOLUTION: When a coloring material layer containing fine metallic particles is laminated on a support, first a plasma treatment is applied to the coloring material layer side of the support by an atmospheric pressure glow discharge, and the coloring material layer is laminated to prepare an imaging material. An excited gas used for the plasma treatment by the atmospheric pressure glow discharge is preferably Ar or He, and a reactive gas is preferably O2, N2, H2 or the like. In addition, the coloring material layer contains isocyanate and a cured layer in preferable. The fine metallic particles to be added to the coloring material layer is preferably iron, chromium, manganese, cobalt, nickel, copper, zinc, titanium, silver and the like. The addition amount of any of these fine metallic particles is preferably 50-99 wt.% of the constituent components of the coloring material layer. |
