Processing creates several holes in film or nonwoven transported at constant speed

摘要

The material is melted in the area of each hole and the melted material is removed using a gaseous fluid. The associated hole generation installation features a heater (7) for melting the material and a device (8) for removing it. The device comprises a hollow stamp (12), which is brought into contact with the film or nonwoven (1). The gaseous fluid acts on the melted material via the interior stamp space (13).