Method for manufacturing decorated article by decorating uneven surface, decorated article by decorating uneven surface, and method for manufacturing drawn article

A method for manufacturing a decorated article by decorating an undecorated uneven surface of an undecorated base material, the method comprising:

• defining an arithmetic average roughness (Ra) of the undecorated uneven surface of the undecorated base material as A, the arithmetic average roughness (Ra) of the undecorated uneven surface exceeding 0.5 μm and being equal to or less than 5.0 μm,
• calculating an ink amount to be jetted in a way in which ink is jetted to a printing surface in which an arithmetic average roughness (Ra) is zero, such that when a calculated ink amount is jetted, an average thickness of a cured smooth ink layer on the undecorated uneven surface becomes B which is defined in a range equal to or more than 1.1 A and equal to or less than 2.0 A, the calculated ink amount being a total of an ink amount which fills the unevenness of the undecorated uneven surface, and an ink amount which is a surplus amount to obtain a smooth surface of the decorated article;
• applying a primer on the undecorated uneven surface of the undecorated base material that is a molded body of a carbon fiber reinforced plastic (CFRP) or a molded body of a glass fiber reinforced plastic (FRP);
• jetting the calculated ink amount of an active energy ray curable ink on the undecorated uneven surface on which the primer has been applied, to form an uncured rough- surface ink layer, in a printing process;
• disposing a temporary cover film to cover an upper surface of the uncured rough- surface ink layer in a coating process;
• forming an uncured smooth ink layer in a pressing process by applying a pressing force to the uncured rough-surface ink layer through the temporary cover film from an upper surface of the temporary cover film, and smoothing a surface of the uncured rough-surface ink layer contacting with the temporary cover film;
• forming the cured smooth ink layer in a curing process by applying an active energy ray through the temporary cover film from the upper surface of the temporary cover film, and curing the uncured smooth ink layer, an arithmetic average roughness (Ra) of a surface of the cured smooth ink layer being equal to or less than 0.5 μm;
• and
• obtaining the decorated article in which the cured smooth ink layer is mounted on the undecorated uneven surface of the undecorated base material by peeling the temporary cover film in a peeling process.