ULTRAVIOLET-DULL RESPONSE IN SECURITY TAGGANTS
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United States of America Patent
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Issued Date -
Dec 9, 2010
app pub date -
Jun 4, 2010
filing date -
Jun 5, 2009
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Abstract
Articles and methods for manufacturing security articles include ultraviolet absorptive materials disposed above and below an emissive security taggant that prevent excitation of the taggant itself at certain shorter ultraviolet wavelengths, rendering the article secure from detection by normal or conventional means.
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