heat reactive pigment

Thermochromic Pigments change color in response to temperature, either transitioning from colored to colorless or shifting between two colors at a defined activation temperature. Kolortek's KTP series covers three sub-categories: colored-to-colorless, colored-to-another-color, and a BPA-free food-grade series. Particle size is 1–10 µm, suitable for inks, coatings, plastics, and cosmetic formulations where a heat-responsive color effect is required.