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Anti-Copy Paper

Our anti-copy paper utilizes SpiraLok™ screens to prevent unauthorized copying and scanning.

Each SpiraLok™ screen is constructed from a single, contiguous spiral line, like the groove of a record. Two frequencies of spiral screen are implemented, which together define a text or graphic image. The hidden message is revealed through scanning or copying as the spiral growth frequencies are tuned to induce moiré interference patterns when scanned or copied.

© 1996-2007 HCC Security Graphics

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