Updated: Sep 3, 2021
Under different conditions such as special light sources, angles, and temperatures, the ink will appear, change color and undergo various changes. This kind of ink is anti-counterfeit, firstly because the ink is variable and not easy to obtain, secondly because there is a certain technology threshold for printing, and thirdly because under normal condition counterfeiters do not know that there is a special ink hidden inside that there is no way to imitate it. This type of ink is certainly not used for security purposes only that it is also popular for generating creative printing effects on many sorts of designs. In this article we have sorted out various security inks, almost all the anti-counterfeit inks in the world are included. If there are any items not listed, please let us know, and Holo Solution will add them up accordingly.
1.Invisible Fluorescent Ink | Shortwave Ink
Invisible Fluorescent Ink appears transparent under natural light, and specific colors and patterns can be visualized under a counterfeit detecting lamp. The strengths of such kind of inks are as follows:
It is not easily noticed under natural light thus may be ignored by counterfeiters.
It has a high process threshold and cost, and it features anti-scanning and anti-copying functions.
It is easy to authenticate
Design inspiration: This successful design was inspired by the idea that a client used invisible fluorescent ink to print a restaurant's menu for a Halloween magic-theme event, allowing diners to experience the mystery of finding a wordless book…
2. Infrared Excitation Ink | Longwave Ink
Infrared inks are transparent and colorless when viewed under natural light. The use of an infrared projection pen can visualize light spots of specific colors. The infrared projection pens do not give rise to any reactions on normal inks, only infrared inks.