| 摘要 |
PURPOSE:To obtain a mark excellent in contrast and stability, by applying an ink of a predetermined color to the surface of a thermosetting resin molded by heating and application of a pressure, baking and postcuring the applied ink, and performing laser marking on the surface of the coated film of the ink. CONSTITUTION:An ink of a predetermined color is applied to the surface of a resin molding molded by heating and application of a pressure but not yet postcured, and baking is conducted to provide a coated film of the ink, followed, if necessary, by postcuring. The ink having the predetermined color for constituting an undercoat film for laser marking may be any ink which can form the coated film of the ink after baking or after postcuring and can form a mark satisfactory as to contrast, stability or the like upon laser marking. Laser marking cen be performed by using a CO2 gas type laser marking device or the like. |
