Optically variable ink (OVI, chameleon ink) is the mainstream high-end anti-counterfeit technology worldwide.
What It Is
Built on multi-layer optical interference pigments, OVI reflects different wavelengths at different viewing angles, producing a reversible two-stage color shift (gold-to-green, green-to-blue, etc.).
Key Features
- No light source needed
- Extremely hard to counterfeit
- Copy-proof
- Premium look
Applications
Banknotes, passports, invoices, tobacco/liquor packaging, luxury goods.
SJH Ink manufactures OVI ink with free samples. Tel 13510998453, www.sjhink.com.