| 摘要 |
PROBLEM TO BE SOLVED: To print with complicate colors at a low cost in a screen process printing on a plastic part of a game machine. SOLUTION: The screen process printing is done with an ultraviolet ray curing ink corresponding to each screen fabric (S1), and the ink is dried by irradiating ultraviolet ray (S2). After repeating the S1 to S2 processes by the number of times for plates, an irregular diffusion layer is printed (S3), and wrinkles of the irregular diffusion layer are generated by irradiating the ultraviolet ray (S4). As the screen fabric with 150 lines of line number is used, delicate expressions such as a gradation are capable for example, and this process can be applied to complicate designs and delicate colors required. The number of plates can be lessened and printing cost can be reduced because it is based on four-color printing by means of color separation.
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