PingWei Anti-forgery Ink Limited

sunlight ink www.anti-forgery-ink.com
 

◊ ,Paper plastic Solar discoloration ink material ,researched and developed with special handcrafted ,sunlight ink mixed with corresponding ink-binder, researched and developed with special handcrafted .sunshine ink It is colorless and glows visible light (400-800nm) when exposed to sunlight and long wave ultraviolet light and restores colorless after evacuating the light source.