Photopolymer Holograms Top Pira's List of Disruptive Technologies in Security Printing
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In security printing new technologies do not always displace the older ones; some authentication devices such as Intaglio print and watermarks have endured for literally hundreds of years. They often tend to extend the family of authentication features. A recent study by Hans de Heij of the Dutch Central Bank showed that there are typically more than 50 overt public security features. Some of the older features had more public recognition: the watermark attained 76% public recall, for example, followed by the hologram at 55%; for this reason the displacement of existing features is undertaken with great care.
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