Curtain coater and curtain coating method
OwnerPeter Schweizer, Ferdinand Krebs +1inventors
InventorsPeter Schweizer, Ferdinand Krebs, Marcel Koestinger
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Abstract
A curtain coating device for the coating of a moving substrate, comprising a nozzle device, for the generation of a curtain dropping onto the substrate, made up of at least one coating fluid and a curtain guide structure with a guide surface, which laterally guides the curtain, whereby the guide surface is convex to the curtain along a width exceeding the depth of the curtain when measured transversely. Additionally, a curtain coating method, whereby a curtain made up of at least one coating fluid is deposited on a moving substrate in free fall and guided on both sides by means of a convex guide surface transverse to the curtain.
Claims34
1-29. (canceled)
A curtain coater for coating a substrate which is moved, comprising:
- a nozzle device for generating a curtain of at least one coating fluid falling onto the substrate;
- and
- a curtain guiding structure comprising a guiding face which laterally guides the curtain;
- wherein the guiding face is convex to the curtain over a width which, measured crossways to the curtain, exceeds the curtain thickness.
A curtain coating method, comprising:
- depositing, in a free-falling manner, a curtain of at least one coating fluid on a moving substrate;
- and
- guiding each side of the curtain with a guiding face which is convex crossways to the curtain.
Dependencies are inferred from the claim text.