Abstract: Primer composition for digital inkjet printing on plastic polymer films possibly laminated with: one or more plastic films of the same or different polymer and/or aluminium and/or paper comprising: a) at least one resin having affinity with said plastic polymers; b) at least one aliphatic or aromatic C2-CI 0 organic mono-, bi- or tricarboxylic acid, possibly being replaced in the aliphatic chain or aromatic ring with one or more halogen atoms and having pKA between 0.2 and 5; c) an organic solvent selected from at least one ether, at least one ester, at least one aliphatic alcohol, at least one ketone, at least one C6-C 10 alkane, or from those belonging to the positive list defined by Swiss Ordinance 817.023.21 Annex 10 and/or mixtures thereof, said organic solvent having a boiling point between 35 and 250° C.

Abstract: The present invention provides a multilayer assembly comprising an antioxidant substance, a container comprising said assembly, its use and a method for its production.