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Presensitized plastic card, tamperproof identification card prepared therefrom, and process for manufacture of tamperproof identification card
Presensitized plastic card, tamperproof identification card prepared therefrom, and process for manufacture of tamperproof identification card
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机译:预敏塑料卡,由其制备的防篡改识别卡以及制造防篡改识别卡的方法
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摘要
A tamperproof identification card such as a passport or credit card is provided. A diazo photosensitive composition is intimately mixed with a thermo-adhesive resin and is carefully deposited as a uniformly thin layer in one or more zones on a plastic support material. The zones of the photosensitive compositions are developed to reproduce identifying information such as a photograph, identification number, etc. A plastic protective film is then laminated to the support to protect the identifying information. Since the adhesive resin material is intimately mixed throughout the photosensitive composition, the protective plastic film cannot be removed without destroying the information.
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