Process of coating plastic containers with gas barrier coating to achieve improved moisture resistivity

摘要

The invention is directed to a process for producing a plastic container with a barrier coating comprising the steps a) applying at least one coating layer of a first polyvinyl acetal on at least a part of the plastic container; b) applying at least one coating layer of vinylalcohol/vinylacetate/ethylene terpolymer (PVX) on the first polyvinyl acetal layer; c) applying at least one top coating layer of a second polyvinyl acetal on the PVX layer.