Diagramm Halbach offers four basic types of temperature-reactive labels:
1. Labels with reversible printing contain colors that temporarily indicate temperature changes and then return to their original state.
2. Labels with irreversible printing remain in the altered state when the specified temperature is reached. Labels for motors include irreversible temperature points that turn black at certain temperatures, indicating that a maximum temperature has been reached.
3. Labels with cold-reactive colors, which do not return to their original state when exposed to heat, are suitable for all refrigerated products and pharmaceutical monitoring.
4. Labels that show different colors when exposed to heat can visualize body temperatures, heat distribution on plates, or even motor temperatures."
