The application of color masterbatch can be said to be very extensive. Sometimes, when it is used, it will cause fading due to various reasons, which not only affects product performance, but also affects the coloring effect. What factors are mainly caused by color masterbatch fading What caused it?
1. The light resistance of the colorant directly affects the fading of the product. For outdoor products exposed to strong light, the light resistance level requirement of the colorant used is an important indicator, and the light resistance grade is poor, and the product will quickly fade in use. By adding a light stabilizer such as a UV absorber to the master batch, the light resistance of the colorant and the colored plastic article can be improved.
2. The degree of color loss, discoloration and fading of the pigment in the color masterbatch at the processing temperature.
3. Color masterbatch organic pigments gradually decolorize after macromolecular degradation or other changes after oxidation, one is high temperature oxidation, and the other is oxidation by strong oxidant.
4. The fading of colored plastic articles is related to the chemical resistance of the colorants.