| 摘要 |
PURPOSE: A plastic card substrate for preventing counterfeit is provided, which can be easily identified with the naked eye and prevent the counterfeit by the hidden letters and patterns and the function like a watermark on paper imparted to the plastic sheet as the substrate in the preparation of a film. CONSTITUTION: A plastic card substrate for preventing counterfeit is characterized by the inserted hidden letters and patterns which appear as a special shape at the special position by forming the shape on the opaque, white or colored substrate of a common card according to the uneven figure transferred to a transfer cooling roll by using carving, etching or discharging methods to identify the counterfeit of the identification card and the credit card with the naked eye easily. The card can be made of polyethylene, polypropylene or soft vinyl chloride resin films. |
