Examples where(on) the technique is often used and what it can be perfect for. Of course, these are pure examples: the possibilities are endless. Be creative!
Heat-sensitive ink, also called thermal ink, reacts to temperature changes and makes printed matter interactive and surprising. By simply rubbing with the hand or holding the printed material between thumb and forefinger for a moment, the ink reaches the ideal temperature. This changes it to transparent, revealing a hidden message or image. Over time, the ink closes again and the message disappears again. This repetitive effect is guaranteed to arouse curiosity and increase user engagement.
The standard version of heat-sensitive ink changes from opaque black to completely transparent around 25 degrees Celsius. This allows texts, graphics or even a full-colour offset print underneath to suddenly become visible. Other transition temperatures are also available on request, making this technique suitable for a variety of applications. Black is the best opaque colour, other colours are available but are less opaque but certainly no less creatively applicable.
The result is printed material that literally responds to touch and experience. Heat-sensitive ink creates a playful and dynamic effect that can be experienced again and again. Thereby, this technique offers a creative way to hide messages and reveal them at a surprising moment, significantly increasing the impact of printed matter.
