Security Ink, also called Anti-counterfeit printing ink, is one of the most important parts of anti-counterfeit technology. It is one of the special printing inks after a series of special processing. Security ink is widely used in banknote, official identity documents, postage stamps, tax banderoles, security labels and product markings.
Security Inks have various functions. Some security inks can show special colors, be invisible or not under specific conditions such as ultraviolet ray irradiation, infrared irradiation, sunlight irradiation, specific temperature and humidity.