Method and apparatus for meltblowing, forming and laying up finite fibers into fibrous nonwovens
A non-woven fabric and fiber-forming technology, which is applied in the direction of melt spinning, textiles and papermaking, non-woven fabrics, etc.
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[0022] exist figure 1 A first embodiment of the device according to the invention is schematically shown in cross-section in . This embodiment has a meltblowing nozzle 1 and a profile element 2 held below the meltblowing nozzle 1 . The profiled element 2 is formed by two counter-driven rollers 3 between which a profiled gap 6 is formed. The forming gap 6 extends in the vertical direction between the rollers 2.1 and 2.2, wherein the rollers 2.1 and 2.2 are symmetrical with respect to the longitudinal axis of the meltblowing nozzle 1 . The drives of the rollers 2.1 and 2.2 are not shown in detail here and can be realized by drive groups or separate drives. The drums 2.1 and 2.2 each have air-permeable drum walls 3 which rotate opposite each other in the direction of fiber blowing at a circumferential speed given by the drives of the drums 2.1 and 2.2.
[0023] The melt blowing nozzle 1 is arranged on a frame 13 in a height-adjustable manner above the drums 2.1 and 2.2. In th...
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