Vapochromic Compounds as Anti-counterfeit Measures
Publication Date: 2015-May-26
The IP.com Prior Art Database
Disclosed is a method to generate a polymeric component having anti-counterfeiting measures, which utilizes vapochromic compounds that change color and response time based on the solvent used for identification.
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Vapochromic Compounds as Anti -
Anti-counterfeit measures are of extreme value to companies in a number of fields with high-end product lines, as they are extremely interested in protecting both personal and government property. Anti-counterfeiting measures has been recognized as a high portfolio focus area within companies seeking to improve the protection of their product set. A recent effort by the U.S. government, referred to as "Operation Holiday Hoax II," highlighted the need for such anti-counterfeit measures by a variety of technology and manufacturing sectors by recently confiscating 300,000+ counterfeit goods totaling nearly $80 million. Many of these valuable and counterfeit-prone products are produced entirely or partly of plastic components, with an exemplary case being a growing trend towards use of polymer banknotes, which are currently being introduced into various economies in the world. Hence, plastic materials containing exceptional and elaborate anti-counterfeit measures are highly desired. Typically, fluorescent dyes are used to add a level of security that can be visualized under a UV light source. These fluorescent dyes though can be re-engineered and only provide one level of security, and advanced developments in both fluorescent and Devices prone to counterfeit (ranging from "polymer" dollar bills to hardware, etc.) are manufactured containing vapochromic compounds. Such compounds are known in the prior art to fluoresce under exposure to solvent vapors. For product verification, solvent vapors are applied to regions of the part containing vapochromic compounds (e.g., through rubbing the part with an alcohol swab) to reveal the fluorescent, identifying mark. For further verification, both a fluorescence meter is used to measure the extent of fluorescence and visual observation is used to dete...