Optically variable ink is a special ink that contains a specially developed substance in its composition to achieve anti-counterfeiting effects. This ink is widely used in the printing of anti-counterfeiting products. Its application in the field of anti-counterfeiting is extensive, and its manufacturing process and production formula are strictly controlled and confidential. The produced optically variable ink cannot be sold or supplied casually and must be provided to qualified manufacturers for use according to regulations.

The reason why optically variable ink can be used in the field of anti-counterfeiting is that this ink is a special printing ink composed of pigments, binders, and ink additives, which are processed through a special process by adding anti-counterfeiting materials with special properties to the ink binders. Nowadays, optically variable ink is widely used in various fields for anti-counterfeiting purposes. It is used in the anti-counterfeiting printing of various tickets, documents, trademarks, and logos. The application of optically variable ink in the field of anti-counterfeiting has become mature worldwide, and there have been various developments in printing methods and carrier media for printing. Different types of optically variable ink are available for different carrier media, such as ordinary paper, newsprint, and plastic. Different inks are used for different printing forms such as relief printing, intaglio printing, lithographic printing, and water-based flexographic printing.

The advantages of using optically variable ink in the field of anti-counterfeiting include mature technology, low cost, good concealment, and high resolution.