Comparison of Production Processes: PP Hinged Food Containers, CPET Trays & MAP Modified Atmosphere Packaging Boxes 1. PP Hinged Food Containers (Disposable Takeaway Packaging) Simplest production workflow. PP pellets require no drying and are directly fed into machines.   Integrated injection molding at 180–230°C forms container and lid in one piece, cooled rapidly by water. Tr...