Meaning
Recycling technologies designed for post-consumer plastics use high-temperature vacuum treatments to remove volatile contaminants and restore material purity. Achieving a super-cleaning process is necessary for recycled polyethylene terephthalate to be approved for food-contact applications. The operation is carried out after the initial wash and flake sorting steps have been completed.
Purification Technology
Flakes are held in a reactor at high temperatures under a deep vacuum. This treatment drives out organic compounds and migration contaminants from the plastic.
Regulatory Compliance
Food safety agencies require a challenge test to prove that the recycling line can remove hazardous contaminants. Spiking the input with surrogate chemicals and measuring their removal verifies the effectiveness of the super-cleaning process. Meeting these limits allows the recycled resin to be used in new food packaging without safety risks.
Economic Value
Resin that has undergone this treatment commands a premium price because it can be used in closed-loop bottle-to-bottle recycling. Brand owners pay more for these food-grade recycled resins to meet their sustainability goals and regulatory quotas. Using these materials allows packaging companies to avoid penalties and taxes on virgin plastics.
The investment in high-purity recycled resins reduces the carbon footprint of the packaging while ensuring that consumers are protected from chemical migration.
