When a device containing Near Infra-Red (NIR) pigment or dye is viewed through an infra-red camera a black or dark grey area will be seen. Specialized infra-red detectors pick up this effect so a machine-readable feature can be created. Since counterfeits made with color printers or copy machines can be filtered out in this way, there is no need for separate verification of origin.
- Security
LUMINOCHEM is a security pigment supplier with a wide range of international experience in R&D projects and chemical industrial synthesis. The company specialises in developing and manufacturing unique luminescent photoactive materials and markers, focused on organic fluorescent security pigments and dyes, near infra-red absorbing materials and anti-stokes (up-converter) pigments.