Method for Controlling the Position of a Material Web Edge

Abstract

A method including: unwinding a lower material web from a first supply roll and transporting the lower material web intermittently or continuously along a packaging machine, sealing an upper material web to the lower material web in a sealing station, the upper material web being unwound from a second supply roll, detecting a position of a reference point on the lower material web and/or on the upper material web relative to a stationary component of the packaging machine, and changing a position of the upper material web transverse to a transport direction of the upper material web by pivoting a roller that is provided downstream of the second supply roll around a vertical axis and/or by axially moving the second supply roll in a direction transverse to the transport direction of the upper material web.

Dependencies are inferred from the claim text.