Jiangyin jinmansheng Plastic Technology Co., Ltd
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  • What are the requirements of the pigment for plastic masterbatch?

    (1) The pigments cannot have feedback with resins and various additives, and have strong solvent resistance, low migration and good heat resistance. In other words, the masterbatch cannot be involved in various chemical feedbacks. For example, carbon black can control the curing feedback of polyester plastic, so carbon black material cannot be added to polyester. Because the plastic finished product has a high molding processing temperature, the pigment should not decompose and change color under the molding heating temperature. Ordinary inorganic pigments have better heat resistance, and organic pigments and dyes have poor heat resistance. This should be paid attention to when selecting the types of pigments. Click on the lower left corner to read the original text and buy EC5011A breathable rubber particles with one click!

    (2) The evacuation and tinting strength of the pigment should be good. When the color material is unevenly evacuated, it will affect the surface properties of the finished product; when the coloring power of the color material is poor, the amount of color material will increase, and the material will be improved. The dispersibility and tinting strength of unified pigments in different resins are not the same, so you should pay attention to this when selecting pigments. The particle size of the pigment is also related to the dispersibility. The smaller the particle size of the pigment, the dispersibility The better, the stronger the coloring power.

    (3) Inquire about the remaining properties of the colorant. For example, for plastic products used in food and children's toys, the colorant should be non-toxic; for plastic products used in electrical appliances, a colorant with good electrical insulation should be selected. ; For outdoor plastic products, color materials with good weathering resistance should be selected.