3.4 TUBES 3.4.1 ALUMINIUM MATERIAL DECORATION
CLOSURE
MATERIAL The aluminium used should only consist of non-ferrous(NF) metal components to prevent contamination in recycling. In a best case, it concerns a mono-material package in which all components are made of aluminium. A lacquer coating does not interfere with the conventional recycling process For aluminium in composite materials (e.g. in combination with plastic), there is usually no possibility for high-quality recycling.
DECORATION AND OTHER COMPONENTS Embossing does not have a negative impact on recycling. Direct printing on the packaging should be carried out with EuPIAcompliant coatings and printing inks. Non-compliant inks can reduce the quality of the secondary material. PVC labels should be avoided as they can cause problems during processing in the recycling process.
CLOSURE SYSTEM Closure systems made of aluminium can be recycled together with the base material and are, therefore, to be preferred. Plastic caps and valve caps should be designed in such a way that they can be separated before disposal or during the sorting process.
DESIGN RECOMMENDATIONS FOR PACKAGING TYPES
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