| 摘要 |
PURPOSE: To prevents the contamination of a laser-ablating marking by disposing a protective layer of a specific thickness between plastic articles and a contrast color layer. CONSTITUTION: At the time of executing marking of the plastic articles 10 by laser-ablating, the plastic articles 10 are coated with the contrast color layer 14. The protective layer of a dry coating weight of at least 1.5 g/m<2> is disposed between the color layer 14 and the plastic 10. As a result, such a marking as bar code marker, may be easily applied on the plastic articles 10 by using the laser. |
