How do you identify a cap made of two different plastic materials: LDPE pourer and PP cap?

Packaging structurally composed of two or more polymers are identified with the code “7” since Decision 129/97 / EC does not provide for specific codes for these materials.

Anyone wishing to provide more accurate information on the composition of multilayer plastic packaging should follow the provisions of the UNI EN 11469 technical standard, according to which the abbreviations of polymers making up the packaging are written between the symbols “>” and “<”

For example, a multilayer consisting of LDPE and PP can be identified like this:> LDPE + PP <7.

Last modified on 19/11/2021

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