digital-print-marking
UV Inkjet Invisible QR Code (UV QR Code)
Standard QR Code printed with UV-fluorescent inkjet ink, invisible under ambient light but readable under UV (365nm) illumination — the primary anti-counterfeit and brand authentication mechanism for luxury goods and premium pharmaceuticals.
Governing Specification: ISO/IEC 18004:2015 / Brand Authentication Standards
Data Format & Required Fields
Full QR Code symbol produced by UV inkjet head alongside visible printing, appearing blank until illuminated by UV-LED light source. Encoded payload typically includes a serialized digital passport URI.
Allowed Character SetAlphanumeric, numeric, binary, and UTF-8 strings; typically a serialized authentication URI.
Payload Length Rule Between 1 and 2953 characters
Example Valid Format
https://auth.prxvision.com/verify?token=UV-PRX-2026-99014Industry Guidance & Practical Applications
- Luxury goods and premium spirits brand authentication labels
- Indian pharmaceutical anti-counterfeit initiative (CDSCO + MoHFW)
- Currency and high-value document covert security marking
Packaging & Scanning Notes: Increasingly mandated by premium FMCG and pharma brands under India Anti-Counterfeiting Coalition (IACC) guidelines.
Symbol Constraints & Label Guidelines
- Verification requires UV-LED illumination device (365nm); not readable under standard white light.
- UV ink age and substrate absorption must be validated for minimum 18-month shelf life readability.