Method for removing wrinkles, device for removing wrinkles, and coating method
AssigneeTDK Corporation
InventorHideki Tanaka
Life of this patent
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AssigneeTDK Corporation
InventorHideki Tanaka
Estimating the term…
The present invention provides a method for removing wrinkles formed on a web, which is continuously transported through a plurality of guide members. The plurality of guide member includes a crown roller which has the diameter gradually increased toward the center thereof. The crown roller is placed in a transport path of the web and downstream of a first zone in which wrinkles are desirably removed, and the web is deformed in a second zone located downstream of the crown roller so as to at least decrease the width of the web, whereby the wrinkles in the first zone are removed. Even when the web is thin (10 μm or less), without using particular backup means, wrinkles formed during transport and coating of the web can be removed. In addition, since wrinkles are appropriately removed, a coating film having a uniform thickness can be obtained by an extrusion coating method.
A method for removing wrinkles formed on a web which is continuously transported through a plurality of guide members, said plurality of guide members including a crown roller having the diameter which is gradually increased toward the center thereof, the method comprising the steps of:
A device for removing wrinkles formed on a web which is continuously transported through a plurality of guide members,
A method for coating a web which is continuously transported through a plurality of guide members, said plurality of guide member including a crown roller having the diameter which is gradually increased toward the center thereof, the method comprising the steps of:
Dependencies are inferred from the claim text.