| 摘要 |
Provided is a surface treatment technique for cyclic olefin resin molded bodies, which improves the printability of the surface of a cyclic olefin resin molded body and causes almost no problems such as discoloration that deteriorate transparency of the cyclic olefin resin molded body. Specifically provided is a structure which is provided with a cyclic olefin resin molded body that is at least partially subjected to a surface treatment and a print layer that is formed on the treated surface of the molded body. The surface treatment is carried out using a solvent that causes swelling of the cyclic olefin resin molded body. It is preferable that the solvent contains at least one substance that is selected from the group consisting of butyl acetate, methyl isobutyl ketone and liquid paraffins. |
