| 摘要 |
So that the needle board of a device for the needling of a nonwoven can be provided with a greater needle density in order to improve the surface design of the needled nonwoven, the needles 2 of a needle board are combined into groups of greater needle density and these needle groups are each assigned a common passage orifice 3 in the perforated plate 1 of the stripper or stitch base, the needles 2 within the groups being arranged with a mutual transverse offset in a longitudinal row with respect to the nonwoven run-through direction 4. In addition, the distances c between the transverse rows 5 of the needle groups have a different size according to a random function. <IMAGE> |
