These special effect Thermochromic Pigments allow for a visual response to changes in temperature. The pigments are composed of microcapsules that change color reversibly. When the temperature is raised to a specified temperature the pigment goes from colored to colorless. The color returns to the original color as the pigment is cooled down. The particle size of the thermochromic pigment for all products is <6 microns (97%). The color and temperature are selected by the user.
Activation Temperature available:
15â„ƒ,16â„ƒ, 18â„ƒ, 20â„ƒ, 25â„ƒ, 31â„ƒ, 35â„ƒ, 43â„ƒ, 63 â„ƒ, 65â„ƒ degrees
Colors available :
Basic color : Red, Yellow, Blue, Green
Applications of Thermochromic Dyes
Thermochromic color changing materials or pigments are generally used in paints, inks, dyes and dyed fabrics. Thermochromic pigments are also used in toys, dolls, recording media and novelties such as seals on beverage mugs that change color when a hot or cold beverage is placed in the mug.
These thermochromic colors are also used in umbrellas that exhibit different colors under shade and in sunlight (Fig. 5). The canopy of the umbrella is dyed with the color changing dyes which undergo color change when exposed to sunlight.
Coatings: suitable for all types of surface casting of plastic products, including ABS, PE, PP, PS, PVC and other plastic materials.