A toothpaste tube is a technical wonder. Two different plastics have been welded together: one rigid plastic to make sure the cork can be screwed on, and one soft plastic to make sure the toothpaste can be squeezed out. This is as complicated as welding together two different metals.

Behind day-to-day products like packaging there are often high tech solutions. And neutrons is a good instrument to find the packaging solutions of tomorrow.

Neutrons can also make a contribution after old packaging have been discarded. If plastics is to be recycled, we need to understand what types of plastics can be melted down to be combined in useful blends. This require knowledge on molecular level.