2.Pretreatment Procedures

Pretreatment is carried out according to the characteristics of plastics. For highly hygroscopic PLA raw materials, sufficient drying treatment is required to remove moisture and prevent defects such as bubbles in the product due to water vaporization during processing. For plastics that need to be mixed with additives, such as PVC, which often adds plasticizers, stabilizers, etc., they are accurately proportioned and mixed in professional mixing equipment to ensure uniform dispersion of additives.