The heat resistance of pigment refers to that the pigment does not change significantly in color light and coloring power at a certain processing temperature, that is, the resistance of pigment to the change of coloring power caused by processing temperature.

Starting from the characteristics of pigment, pigment is a fine particle powder chemical substance of colored plate, which is generally insoluble in water, oil, organic solvent, epoxy resin and other substances

Because of some characteristics of organic pigments, they have good dispersion and high coloring power.