In 2022, People’s Bank of China issues two commemorative banknotes for Beijing 24th Olympic Winter Games. One is polymer banknote and the other is paper banknote. The polymer base and paper base of the Winter Olympics commemorative banknotes are both use color dynamic optical stripes. Through the optical anti-counterfeiting features, the stripes give snow, the Great Wall, lanterns new vitality, achieving technology and design integration.
The security stripes of Beijing Winter Olympics commemorative banknote use new technologies of optical structural color to achieve more clear stability of color. First,we make sub-wavelength Gratings within micron Structures, so the production process is extremely difficult (ColorTrace® Technology). Second, Based on Surface Plasma Technology, we maintain the color stability (ColorDance® technology). Third, based on moire amplification theory, the dark number“20” is designed with Dynamic effect.