How are PET flakes hot washed?

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How are PET flakes hot washed?

Step 1: Sorting and Inspection

The first step in hot washing PET flakes is to sort and inspect them to remove any impurities or foreign materials. This is important to ensure the cleanliness of the final product.

Step 2: Pre-Washing

After sorting, the PET flakes are pre-washed in cold water to remove any large particles or debris. This helps to prevent clogging of the washing equipment during the hot washing process.

Step 3: Hot Washing

The pre-washed PET flakes are then transferred to a hot washing tank filled with water heated to a temperature of around 80-90°C. The flakes are agitated in the water to remove any remaining contaminants from the surface.

Step 4: Detergent Addition

Once the flakes have been hot washed for a certain period of time, a detergent is added to the water to further loosen and remove any remaining dirt or oils from the flakes. The detergent helps to break down contaminants and improve the cleaning efficiency of the process.

Step 5: Rinsing

After the hot washing and detergent addition steps, the PET flakes are rinsed thoroughly with clean water to remove any traces of detergent or contaminants. This step is crucial to ensure the purity of the final product.

Step 6: Drying

The final step in the hot washing process is drying the PET flakes. They are typically dried using a combination of mechanical and thermal methods to remove any remaining moisture and prepare the flakes for further processing or packaging.By following these steps, PET flakes can be effectively hot washed to remove impurities and contaminants, producing clean and high-quality recycled material for use in various applications.

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