Film Solutions for Forgery-Proof ID Documents
New Generation of TPU for Passport Hinges
Specialty chemicals company Covestro AG, Leverkusen, Germany, is on the market with a new concept for clear window technology for security card manufacturing . Such windows present an additional security feature against counterfeiting attempts. For the manufacture of ID cards it is essential that the card construction has a flat surface without irregularities. Covestro developed a very thin film with extremely high opacity which is particularly suitable for the seamless integration of clear window applications.
According to the manufacturer, the film solution enables a new production method which does not require filling a punched window inside a polycarbonate card or passport data page with additional material. During the lamination process, the transparent layers merge and the thin hole is filled without any irregularities on the document’s surface. This construction offers more space for transparent layers and for the integration of additional security features. Complex window geometries are also possible. The thinner opaque films are also expected to simplify the lamination process, reduce cycle time and the visibility of integrated antennas and chips.
Another development affects the interior design of passports. The data page is laminated onto a thin fold that is integrated into the passport for a secure fit. The fold consists of a multi-layer film composite made of thermoplastic polyurethane (TPU). The passports can be opened and closed as often as required without the flexibility suffering or the fold tearing.
Covestro Deutschland AG
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