Paper Bobbins and Tubes

Abstract

More than 100 years ago the first tube winding machine was designed. However, convolute tube winding was very slow and could produce one tube only at a time. Hence a process had to be found to run this intermittent procedure continuously, for which a plastic extruder-is an excellent example. A further advantage of such a method is that the tube can be supplied of practically endless lengths instead of one set length. The tube is cut off according to need.