Sorting method for residual winding materials, and winding tube

摘要

A sorting method is defined for remnants of a web-shaped semi-finished product wound on to plastic winding tubes. The winding tubes are detected and sorted out from the remnants of the web product in order to prepare the remnants for recycling. The web remnants and tubes are run through a detector in a continuous flow and the tubes are detected in an electromagnetic alternating field by the detector. An electrically conductive component is added to the tube.