Masterbatch plastic pigments or by a high proportion of additives with the thermoplastic resin, the fine-dispersed plastic colorants, their choice of resin having good wetting and colorant dispersion, and the pigmented material has good phase capacitive. Namely: pigment + vector + additives = masterbatch.

    Classification plastic masterbatch commonly used are the following:

    By carrier classification: such as PE masterbatch, PP masterbatch, ABS masterbatch, PVC Color Masterbatch, EVA masterbatch, etc.

    By Application: Masterbatch such as injection molding, blow molding Masterbatch, Color Masterbatch spinning like. All varieties can be divided into different levels.

    Masterbatch for plastics pigment, its processing, plastic products for different purposes and other factors, the pigment performance requirements are not the same, in general, have the following performance requirements:

    1, the coloring power

    Coloring pigment refers to a certain amount of the pigment color products required percentage standard sample coloring power to represent. Coloring pigments not only to its nature, but also related with the pigment dispersion, the dispersion of pigment mainly refers to the level of detail, the greater the degree of dispersion, the stronger its coloring power, but there is a saturation value.

    2, the heat resistance

    Heat is the degree of change in its color temperature color processing and use or performance. When considering the heat resistance of the pigment should also consider its heating time. Because when processed into plastic products, different processing methods, heat at different times, in the course of different uses, the heating time is different, generally, the higher the temperature, the shorter the heat time.

    3, resistance to migration

    Pigment migration resistance is pointing to color plastics and other solid, liquid, gas and other states of matter, or long-term exposure in a particular work environment possible and the foregoing physical and chemical effects occur, the performance of the pigment migrate from the plastic into the interior products the free surface, or move to an adjacent plastic or solvent.

    4, light resistance and weather resistance

    Plastic products due to long-term outdoor use are required to have excellent light resistance and weather resistance. Certain colors under the irradiation of light, colors have different degrees of change. Weathering refers to the color of the pigment stability under natural conditions. Since the black mother outdoors very much, there is a special focus on migration resistance and weather resistance.

    5, chemical resistance

    Industrial plastics commonly used for storing chemicals and transportation acid and alkali, thus taking into account the nature of the pigment acid, alkali and so on.

    For acid, alkali and other chemicals of decomposition products should also include resins, additives, and other products use environment detergent, bleach substances.

    6, toxicity

    Everyday use plastic more and more, and therefore more and more attention to the problem of toxicity of colored plastic.

    7, mixed

    Colored plastic often used when two or more color pigment, it is necessary to understand the mixing performance between them, but also need to know whether the masterbatch and plastic additives, additives from a chemical reaction.