Thermocromatic

These are heat sensitive inks that disappear, or change colour when exposed to temperatures about their set level. Although the ink can be manufactured top react at a variety of heat levels, it is most commonly and practicably set close to normal human body temperature. This allows for authentication of a document simply through the warmth of an individuals hand. With no need for sophisticated equipment, such as UV lamps, these inks can be quickly and easily verified. This ease of authentication is a major strength of this system as an overt validation and anti fraud application. Thermochromic inks are coloured below the set/specified temperature and become colourless /transparent when this temperature is exceeded. For samples of our products please contact by email or on 0800 0260994