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COVERT SECURITY MARKERS COMPOSITION AND AUTHENTICATION METHOD
COVERT SECURITY MARKERS COMPOSITION AND AUTHENTICATION METHOD
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机译:秘密安全标记的组成和认证方法
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摘要
A new covert security feature for paper/polymeric substrates using a coating/marking ink which have sharp and distinct infra-red absorption is disclosed herein. Further, the invention discloses a method for incorporating the said security markers into the substrate and the use for authentication thereof.
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