| 摘要 |
A product (20) authentication system and method employs a unique mark (10) that is simple and cost-effective to apply, but provides several layers of protection, including anti-counterfeit and anti-diversion, against counterfeits. The unique mark (10) contains a product control code that is printed in invisible ink comprising a UV ink and an IR ink. The first layer of protection is invisible. The second layer of protection is the code itself. The third layer of protection is the presence of the IR ink in the invisible code. The fourth layer of protection is the IR emitting characteristics of the invisible code.
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