Why do security ID cards often use polycarbonate film instead of other materials?
Polycarbonate film with excellent physical properties, such as high strength, impact resistance, transparency, high temperature resistance, good chemical resistance, etc., is widely used in the field of security identification, especially in ID cards, passports, driving licenses and other documents.
The most important characteristic is Anti-counterfeiting function.
Embedded security elements: Through hot pressing or laser etching technology, watermark, microtext, hologram and other security features are directly embedded on the film. These elements are not easily falsified and can be verified optically.
Color-changing ink: Color-changing ink can be printed on the polycarbonate film, which will display different colors at different angles to enhance the security of the document.
Fine text and pattern: Through the high-precision processing of polycarbonate film, extremely small text and pattern can be printed on the document, which can not be copied by ordinary copiers, further improving the anti-counterfeiting effect.
That's why polycarbonate film is popular to be used in security identity field in many countries.
