Verfahren zur Herstellung von Filtern

The description refers to a process for the production of filters. In said process, a filter material 10 is preshaped in the form of a continuous web, perforated by a laser beam 13 and then folded in a zig-zag. The folded filter element 29 is fixed in a subsequent operation in a device and the perforated residual parts 31, 32 are separated from the filter element.