The plastic packaging barrel is made by injecting the sol into a specific mold after heating the plastic particles. The whole process requires the corresponding raw materials to have stable heat resistance, otherwise, the raw materials, masterbatch and other auxiliary materials will be caused by the barrel due to the high temperature. The cause of discoloration and fading when the temperature is too high. When necessary, the color masterbatch prepared with inorganic pigments is composed of metal oxides and salts, with good thermal stability and high heat resistance.
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