Method and device for either cutting or perforating a moving web of paper.

摘要

Method and device for cutting or perforating a moving web (2) of paper or such like material by using a laser beam (5) which by means of a pivotable or rotatable positioned laser optics (6) is moved over the web (2), said web (2), at the place where the laser beam (5) is moving over it, being brought into such a shape that the distance between the laser optics (6) and the moving web (2) is substantially constant at every moment. <IMAGE>