| 摘要 |
In a wound filter body (1) comprising several filter layers, the peripheral contour (5, 5') of the filter body cross-sectional surface has at least one section (5') back-cutting the exterior contour of the filter body cross-section. An independent claim is included for apparatus for producing the filter body (1), with a holder for a supporting core (8) and a device for wrapping the core with filter material, which includes a device for pressing at least sections of the filter material onto the core during the wrapping process. |
