Unlike foamed polystyrene trays, transparent containers were considered difficult to recycle because their materials vary considerably. FPCO created an infrared material identification system through its independent technological development efforts. After successfully sorting transparent containers, it was put into full operation in October 2008.
As they do for foamed polystyrene trays, customers can put transparent containers into collection boxes at supermarkets and other retail stores after cleaning them. As of March 2018, collection boxes for transparent containers could be found at approximately 5,200 sites all over the country.
Wholesalers of packing materials are asked to temporarily store transparent containers picked up by their trucks returning from deliveries to supermarkets and other retail stores.
The transparent containers that are collected are conveyed to sorting centers in each region.
Containers are finally aligned manually to ensure that the material identification system is operating correctly.
The system irradiates infrared rays into containers to identify their materials.
Containers are cleaned and crushed at the same time.
The dried chips are melted and processed into pellets. * The cooling water is circulated.
After passing a quality test, the pellets are ready to serve as the material for Eco Trays™.
The sheeting process makes the pellets into Eco Trays™. Each Eco Tray is printed with the Eco Mark.