| abstract |
A barrier film for use in a laminated packaging material for liquid food products, comprising: a polymer film substrate (11), and a plasma-enhanced chemistry in a vacuum method on a first side of the polymer film substrate. A first coating of silicon oxide having the general composition formula SiOxCy, where x is 1.5 to 2.2 and y is 0.15 to 0.8, coated by vapor deposition (PECVD). A layer (13) and a second coating layer (12) of amorphous diamond-like carbon (DLC) in direct contact with and directly adjacent to the first coating layer, and gas for packaging materials and packages made thereof. And a barrier film that provides water vapor barrier properties and mechanical durability. |