Optically Variable Ink (OVI Ink)
The optically variable ink by KAISHIMEI is a prominent anti-counterfeiting measure used on wide variety of anti-forgery packages, securities, certificates, banknotes, etc. The ink displays two distinctly different colors depending on the angle the product is viewed at. A fifty-dollar bill, for instance, uses OVI for the numeral 50 so that it displays one color at one angle and one different color in another.
The color-shifting ink comes with strong optical variable characteristic and obvious chromatic aberration, which can not be reproduced by high definition copy machine, scanner or other equipment. Consumers, however, can identify without any instrument.
Our optically variable ink features wide application. Printing on paper, plastics, aluminum foil, etc. are all feasible. No radiation and toxicity can ensure safety. In addition, this security printing ink has excellent resistance to damp, sun and corrosion as well as stable performance.
At present, this optically changeable ink is available in various options such as green/red, blue/red,golden/silver, red/green, red/golden, sliver/green, yellow/blue, green/salmon pink, blue/salmon pink, yellow/green.
