The present invention relates to the technical field of plastic production and manufacturing, in particular to a production process of a hollow blow-molded polyethylene barrel. The hollow blow-molded polyethylene barrel is prepared through color masterbatch manufacturing, batching, stirring, heating, parison extrusion, mold closing, blow molding, cooling and pressure holding, air release, mold opening and product taking out. In the production process of the hollow blow-molded polyethylene barrel of the present invention, through raw material screening and formula optimization, the components of the color masterbatch available for pharmaceutical hollow containers are clearly selected, ensuring that the required color can be obtained during product molding while meeting the corresponding chemical testing requirements. Through the research on the addition ratio of the color masterbatch in the hollow containers, the produced hollow blow-molded polyethylene barrel meets the packaging requirements for pharmaceutical raw materials, making the product meet the requirements of items such as residue on ignition, heavy metals, pH change value, absorbance, easily oxidizable substances, non-volatile matter and decolorization test.
Country Code: CN
Application Number: CN202010280357.5
