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US 2013/0340673 A1Published application
Deposition of ultra-thin inorganic oxide coatings on packaging
AssigneeFrito-Lay North America, Inc.
InventorsRobert GODFROID, Glenn JORDAN, Anthony Robert KNOERZER, Kenneth Scott LAVERDURE, Eldridge M. MOUNT, III
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Abstract
An apparatus and method for depositing an ultra-thin inorganic coating on to a packaging film substrate is disclosed. Flame pretreatment enhances the quality of the inorganic coating. Multiple coating layers may be deposited onto the substrate by passing the substrate over various one or more flame head configurations in either a stand-alone or in-line manufacturing environment.
Claims13
A system for coating a packaging film substrate with an inorganic oxide layer comprising:
- at least one flame treatment flame head assembly supplied with no inorganic oxide precursor;
- one or more deposition flame heads supplied with at least one inorganic oxide precursor placed in series on at least one deposition flame head assembly;
- wherein said substrate passes through said flame treatment flame head assembly before said substrate passes through said deposition flame head assembly, and wherein said at least one flame treatment flame head assembly and said one or more deposition flame heads are at open atmosphere.
Dependencies are inferred from the claim text.