Security Printing and other technological applications sometimes require Special Materials, which change their color because of the change one or more parameters (e.g. temperature, pressure, chemical bond) of the environment or because change in the molecular structure. One of these specific materials are Temperature Sensitive Pigment, which change their color because of the Change of Temperature.
These Pigments are not Fluorescent Materials; The main difference between the two type of pigments is that fluorescent has bright fluorescent intensity at -50°C but Temperature Sensitive Pigment
series change their color at the visible range (not fluorescent).