1. Composite packaging: bricks and cans

What characterizes this type of packaging is that the container is closed by welding two parts of its wall together, and if there is a cap on this type of container, it is an added part to facilitate its use by the consumer. The welds are made by thermo-fusing the plastic elements of the composite material using an induction process.

• A distinction is made between two processes, depending on whether conditioning is based on :

  • preformed cartons, only shaped, sterilized, filled and closed on the packaging machine;

  • a case produced directly on a single machine during packaging, from a strip of material which is shaped, cut, welded, then filled and sealed in a continuous process.

  • In the first case, pre-formed...