The functions of a tray are in many cases underestimated. Not only does it need to fulfill the basic requirements of good transport packaging such as keeping the product together and allow good stack ability.
Nowadays trays will also be used to communicate, as they get wheeled into the stores on dollies or immediately are placed on the shelf. Moreover the industries that use trays have high demanding filling and erecting machinery which means that the tray needs to be optimized to meet demanding processes with a minimum of material.
