In line manufacturing of documents with security elements
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United States of America Patent
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Aug 25, 2020
Grant Date -
Mar 23, 2017
app pub date -
Apr 22, 2015
filing date -
May 15, 2014
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Abstract
A method and apparatus for in-line manufacture of a security document with a structured security element is provided in which a continuous web of document substrate is fed through a series of processing stations. The processing stations include a station for forming a structured security element in a radiation sensitive coating applied to the document substrate, and at least one station for applying at least one additional layer to the document substrate excluding the security element area. In a security document manufactured with the method or apparatus, the additional layer or layers have a combined thickness which is preferably substantially equal to the height of the structured security element or which differs from the height of the structured security element by a predetermined amount.
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