When selecting masterbatch, it is also necessary to pay attention to the colorant used in the masterbatch, because the masterbatch has certain requirements for the colorant used. Let's take a look at the color masterbatch manufacturers. What are the requirement for colorants in color masterbatch?

  1, The other properties of masterbatch color should be understood, for example, for some plastic products used in food, children's toys, the color material should be non-toxic; for plastic products, color material should be good with electrical insulation; for outdoor plastic products, should choose color materials with good weather resistance and so on.

  2. The dispersibility and tinting strength of the masterbatch pigment should be good. When the color material is unevenly dispersed, it will affect the appearance performance of the product; when the coloring power of the color material is poor, the amount of color material will increase and the material cost will increase. The dispersibility and tinting strength of the same colorant in different resins are not the same, so pay attention to this when selecting the colorant; the particle size of the colorant is also related to the dispersibility. The smaller the particle size, the better the dispersion, the stronger the tinting strength.

  3, Masterbatch color material can not react with resin and various additives, and should be with solvent resistance, small migration, good heat resistance and so on. That is to say, the color masterbatch cannot participate in various chemical reactions. If carbon black can control the curing reaction of polyester plastic, it is not possible to add carbon black material to the polyester; Since the molding temperature of the plastic product is high, the color material should not decompose and discolor under the molding heating temperature condition, and the general inorganic pigment is with good heat resistance, and the heat resistance of organic pigments and dyes is poor. This should be paid enough attention when selecting the colorant varieties.