Optical variable ink

Optical variable ink is the most complicated intervention-type anti-forgery ink. The printing products using this ink has colorful metal luster in which color lump shows a pair of colors, red-green, green-blue and golden-silver, for example. Seen from the front or lateral side under sunlight, the ink glows two different colors varying with the viewing angle.

Color:gold-silver,silver-green,yellow green-blue
rose red-gold,magenta-gold,green-purple and so on
Optical variable ink