Preparation process of high-quality PET bottle preforms

Cosmetic Preform are essential for the production of Plastic bottle. The following is the process of preparing high-quality PET bottle preforms:

1.Plastic Preform material selection: The preparation of high-quality PET bottle preforms begins with material selection. Usually high-quality PET raw materials are used to ensure the transparency and physical properties of the blank.

2. Heating and extrusion: PET pellets are heated and processed into the shape of the billet through an extruder. Precise temperature and extrusion pressure control are critical to ensure billet consistency.

3. Mold injection molding: The thermoplastic blank is further injected into the mold, cooled and solidified according to the desired bottle shape. Injection molding is a key step to ensure accurate dimensions and smooth surface of the preform.

4. Quality Control: Blanks undergo quality control inspections to ensure they meet all specification requirements, including size, clarity and physical properties.

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