Thermochromic ink
Thermochromic ink changes colour with temperature variations and can be applied both reversibly and irreversibly. This technique is popular for security labels, food packaging (temperature changes during transport) and excise stamps.
How it works
- Colour change based on temperature.
- Optionally with two colour changes, resulting in three different colours.
- Reaction range precisely adjustable depending on the desired application.
- Available as a reversible or permanent solution.
Security
- Visual recognition of temperature differences without special equipment.
- Effective protection against counterfeiting and fraudulent reproduction.
