Color masterbatch has the following advantages: In order to make the pigment have better dispersibility in the product, the pigment needs to be refined during the production process to improve the dispersibility and coloring power of the pigment. The carrier of the special color masterbatch is the same as the plastic of the product, and it has good matching and heat melting. After that, the pigment particles can be well dispersed in plastic products. For color masterbatch, we must pay attention to the matching relationship between color masterbatch and plastic raw materials and additives. The selection points are as follows.

1. The pigment cannot react with resin and various additives. Strong solvent resistance, good heat resistance, and small migration. In other words, the masterbatch cannot participate in various chemical reactions. For example, carbon black can control the curing reaction of polyester plastics, so carbon black materials cannot be added to polyester.

The high concentration of carbon black not only has excellent tinting power and hiding power, but also maintains the mechanical properties of basic plastics. With different quality of recycled resin, the amount of color masterbatch is reduced by 10-15% compared with existing products, and the coloring effect is the same. In order to maintain the mechanical properties of basic plastics, such as the tensile strength of plastic products and higher molding temperature, it should not be decomposed and discolored at the molding heating temperature. Generally speaking, inorganic pigments have better heat resistance, while organic pigments and dyes have poor heat resistance. Enough attention should be paid when choosing color materials.

2. The pigment has good dispersibility and coloring stress. If the pigment is not uniformly distributed, it will affect the appearance of the product; if the quality of the pigment is poor, it will increase the amount of pigment and material cost. The dispersibility and coloring power of the same pigment in different resins are not the same, and this should be paid attention to when choosing a pigment.

The particle size of the pigment is also related to the dispersibility. The smaller the pigment particle size, the better the dispersion and the stronger the coloring power.

3. Understand the other characteristics of color, such as plastic products for food and children's toys, which require color to be harmless; plastic products for electrical appliances should choose colors with good electrical insulation; outdoor plastic products should choose colors with good weather resistance Aging.