Patent ID: 7367560
Filing Date: 2008-05-06
Classification: B65H

Abstract:
1. A conveying method for a laminated sheet comprising a coating layer formed on a base film, comprising the steps of: holding the laminated sheet by suction of a vacuum chamber and conveying the laminated sheet while maintaining contact with the other side of the base film of the laminated sheet, and maintaining the laminated sheet in a concave shape, and thereafter, holding the laminated sheet by suction of a suction roller and conveying the laminated sheet while maintaining contact with the other side of the base film of the laminated sheet on the suction roller at a predetermined angle, and maintaining the laminated sheet in a convex shape, wherein the suction force of the vacuum chamber to the laminated sheet is sufficient to overcome the tension in the laminated sheet upstream of the vacuum chamber, and increasing or decreasing the winding angle of the laminated sheet on the suction roller is performed in order to change the conveying passage of the laminated sheet to a downstream direction from the suction roller.