second nozzle bar d 2 is arranged above the compacting belt 2 below the transport belt 1 carrying the nonwoven v a suction device 2 is arranged herein the treatment of the nonwoven v is performed by the fluid jets w 2 which will pass through the structure screen belt of compacting belt 2 then will reach the surface of the nonwoven v and the will pass through the structure of the transport belt 1 the nozzle bars d 1 and d 2 are arranged closely behind each other with respect to the total path of the fiber web f within the entire system and together will effect a first application of fluid onto the material web as provided according to the sense of the invention fig8 shows an embodiment of the invention wherein the transport belt 1 and the compacting belt 2 will first run around a common guide roller u and then redirected into the reverse direction around a guide roller u 2 p in the first section ab 1 the two belts 1 2 run parallel while holding the intermediate fiber sheet in a pressed state this is followed by an application with fluid jets w 1 of a first nozzle bar d 1 with a suction device a 1 arranged below the transport belt following the guide roller u 2 p in the second section ab 2 the transport belt 1 and the compacting belt 2 extend away from each other at an acute angle u03b2 while tensioned in a linear direction the compacting belt 2 runs in the direction.