In recent years, PET has gained strong demand in various beverage markets, including water, carbonated beverages and beer. One of the important reasons is that the packaging of these products requires PET materials, and these packaging have become the way people visually distinguish beverages. For designers and processors, developing innovative PET packaging materials with eye-catching colors is an important task.So PET masterbatch becomes popular now.

It is a colorant. Generally, when producing thermoplastic products, different colors of color masterbatches are needed. Different materials and different colors have different filling ratios,as usual it will not exceed 10 percent .

Basic requirements for plastic colorants:

(1) Good heat resistance (thermal stability)

(2) Good light resistance (light stability)

(3) Good dispersion (that is, to have a large coverage rate)

(4) There should be no migration (including solvent resistance)

(5) Have good tinting strength

Color masterbatch is a kind of plastic colorant which is well dispersed by a high proportion of pigments or additives and thermoplastic resins. compatibility.

Most of the existing color masterbatches have good coloring effects, but it is unavoidable that they will get wet during long-term storage. Once they are damp, the coloring effect of the color masterbatches will be greatly reduced, and the color masterbatches also need to have a certain resistance. Oxidation, thereby reducing the external oxidation of the material and reducing the impact on later use.

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