Why does the Thermochromic pigment not change color
02 Dec 2022
There are many types of Thermochromic pigment, and there are many choices of temperature value, such as 16 degrees, 31 degrees, more than 40 degrees, etc., and we also support for customizing the temperature value that customers need.
Among the color-changing pigments, Thermochromic pigment is a special type, because it needs to reach a certain temperature to change color. When the temperature reaches the specified temperature, it will change color. When the temperature is lower than the specified temperature, the color changes back to the original color. Therefore, many merchants use Thermochromic pigment to make different products, such as Thermochromic paint (Thermochromic car paint, Thermochromic spray paint and other thermal color changing paint), Thermochromic nail art, Thermochromic clothes, Thermochromic shoes, Thermochromic daily necessities (generally, environmental-grade temperature-changing powder is used for daily necessities), Thermochromic toys, and some Thermochromic cups and other items. In use, generally, the main problem reported by users is that the color of the Thermochromic pigment does not change.
So what is the reason?
The Thermochromic pigment does not change color. The main reason may be that the merchant gave the wrong temperature when buying materials. You thought it was more than 30 degrees. As a result, the merchant gave more than 40 degrees, so the Thermochromic pigment did not change color when it reached 30 degrees.
Another reason is that when using high-shear equipment such as internal mixers, kneaders, high-speed mixers, and twin-screw extruders to stir the Thermochromic pigment, the working parameters are not adjusted properly, which leads to discoloration of the equipment during processing. The protective layer of the pigment is destroyed. This situation will also make the Thermochromic color not change.
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