| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic vessel on which a metallic ink is directly printed. SOLUTION: A plastic vessel is directly printed by using a metallic ink. In printing on the plastic vessel, though it is not specifically limited, a screen process printing is preferable. When an ultraviolet ray curing type of the metallic ink is used, the screen process printing is applied on the plastic vessel surface or on a print of the plastic vessel surface by a printing ink containing an ink composition of ultraviolet ray curing type as a base, and the ultraviolet ray curing components in the printing ink are cured by irradiating ultraviolet ray on the printed surface.
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