The manufacturing process of PET bottle blanks involves several key steps to ensure high-quality preforms. The process begins with the preparation of PET resin, which is melted and injected into molds to form the preforms. This step is known as injection molding.
Once the preforms are produced, they are cooled and stored until they are ready for further processing. The preforms are then heated in an oven to make them soft and pliable. They are stretched and blown into the final bottle shape using a process called blow molding.
Quality control is an essential part of the manufacturing process. Each preform is inspected for defects, and tests are conducted to ensure that they meet the required specifications. This ensures that the final PET bottles are of high quality and suitable for their intended applications.