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US 5,395,647 AGranted
Apparatus and method for cooling films coated in a vacuum
AssigneeLeybold Aktiengesellschaft
InventorThomas Krug
Life of this patent
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Abstract
A wetting unit provides a contact agent between the coating roll and the film surface before coating by a thermal source.
Claims16
Apparatus for vacuum coating a film having a first surface and an opposed second surface, said apparatus comprising
- a coating roll over which said film is passed with said first surface in contact with said roll,
- pulley means which provide a contact between said first surface and said coating roll,
- a coating source excited by thermalization adjacent said coating roll for coating said second surface of said film, and
- wetting means for providing a liquid contact agent between said first surface and said coating roll prior to passing said film over said coating roll.
1 more element
Method for vacuum coating a film having a first surface and an opposed second surface, said method comprising
- guiding said film over a coating roll with said first surface in contact with said roll,
- applying a liquid contact agent on at least one of said first surface of said film and said coating roll prior to passing said film over said coating roll, and
- coating said second surface of said film by thermally exciting a coating source as said film passes over said coating roll under vacuum condition.
Dependencies are inferred from the claim text.