<!---->The colorant cannot react with the resin and various additives, and has strong solvent resistance, low migration, and good heat resistance. That is, the masterbatch cannot participate in various chemical reactions. For example, carbon black can control the curing reaction of polyester plastic, so carbon black cannot be added to polyester. The dispersibility and coloring power of the pigment should be good. When the dispersion of the colorant is not uniform, the appearance performance of the product may be affected; when the coloring power of the colorant is poor, the amount of the colorant is increased and the material cost is increased. The dispersibility and coloring power of the same colorant in different resins are not the same, so this should be taken into account when selecting the colorant.

 Should understand the other properties of the color material, such as plastic products used in food, children's toys, the requirements of color material should be non-toxic; plastic products used in electrical appliances, should choose good electrical insulating material; for outdoor plastic products, pigments with good weathering resistance should be selected.

 The main products are:
1) Professional black masterbatch.
2) Professional analysis: professional and technical personnel provide material analysis for customers; solve technical problems and analyze chromatic aberration.

 Precautions for masterbatch use:
A. After the masterbatch is stored for a period of time, it will absorb moisture, especially PET, ABS, PA, PC, etc., so it should be dried according to the same process of the same color and achieve the moisture content.
B. Color matching with masterbatch to achieve the desired color must be very careful, and often occur in color and shade changes.
C, masterbatch and other additives will react, use caution.
D, attention should be paid to the selection of dilution ratio of masterbatch. If a high dilution ratio is used, the production cost will be lower, but it will also be limited by the processing equipment;<!----><!----><!---->