TagsBi-luminescent

Tag: Bi-luminescent

Security ink discovered for fraud prevention

Indian scientists have developed a special safety ink that can prevent counterfeiting of banknotes and identity documents. After exposure to UV light of a certain...

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Need a Passport Photo? There’s an App for That

As the pandemic starts to subside and travel resumes, many Americans are eager to apply for, or renew, their U.S. passports. Some people consider...

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Security by Design: Colour & Split Fountains

Joel Zlotnick, Jordan Brough and Troy Eberhardt Line art, microprinting, guilloche patterns, security halftones, transparent register and other features based on printed artwork are common...

Keesing Journal 9

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