White IR perspective ink: printing the pattern on the substrate, text and other marks are colorless, in printing items (such as a variety of products, books, entertainment, supplies, etc.) do not see any marks, in the infrared optics (lens) optical and infrared cameras can be clearly seen under white light using infrared ink pattern perspective, text and other tags. More product than the previous green Invisibility Potion, is the latest generation of white light syrup.