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Plastic color matching does not fade forever orange


  The process of plastic color matching is more complicated. In order to obtain the expected effect of color matching, the plastic color matching does not fade. Permanent orange pigment is a good choice! To achieve fast, accurate and economical color matching of plastics, the following principles should be followed:
  (1) The principle of "small amount", the less variety of colorants used in plastic color matching, the better, such as permanent orange pigment. In short, if you can solve the problem with two colors, you don't need three colors. Because the selection of more varieties is not only troublesome for color matching, but also easy to bring in complementary colors to make the color dark. In addition, the more varieties are selected, the greater the systematic errors brought by these varieties to color matching samples and production due to factors such as dispersion and tinting strength.
  (2) According to the principle of "similarity", plastic color matching should pay attention to the selection of varieties with similar heat resistance. Otherwise, due to the large difference in heat resistance and stability, the color change will be caused by the temperature change during processing. Plastic color matching should pay attention to the selection of varieties with similar dispersion. Otherwise, the dispersibility difference is too large, and the color change will be caused by the shear force change during the processing. Therefore, it is recommended that when choosing color matching pigments, try to use a manufacturer's pigments. For example, when equipping with apricot yellow, the organic pigments used are Baotong pigment red pigment and permanent orange pigment. Then, when choosing yellow pigment, try to choose Baotong pigment as well. Tong pigment. Baotong pigments are "easy to disperse", and plastic color matching should pay attention to selecting pigments with similar properties, that is, varieties with similar light fastness and weather resistance, otherwise the prepared plastic products will become unrecognizable after outdoor exposure due to too much difference in performance.
  (3) The principle of "complementary colors". When color matching, the introduction of complementary colors should be prevented, otherwise the original gloss will be darkened and the brightness of the color will be affected. Complementary colors, also known as complementary colors and secondary colors, are usually composed of primary colors other than primary colors as complementary colors. For example, orange is a color combination of red and yellow, and blue is a complementary color. At the same time, pay attention to the different shades of pigments when color matching, and avoid using complementary color shade pigments to match colors, otherwise the saturation will be reduced and the color will be dark.
  From the above introduction, we can see that plastic color matching is a complex system engineering. How to adjust the various variables of the colorant can now achieve the known color visual characteristics, the price is reasonable and feasible, and compound after processing and in use. requirements, is an extremely complex issue.