| 摘要 |
The fleece web (60) to be patterned is guided past a first treatment station (36-38, 64) between a perforated supporting member (40) and a perforated drum casing (30, 33). At the same time, by being subjected to fluid, the fleece web (60) is provided with a first pattern, in that the fibres are ordered by the specific position of the perforation of the member (40) and of the casing (30, 33) in order to form the first pattern. After this first treatment, the supporting member (40), together with the patterned fleece web (60), is removed (B) from the drum casing (30, 33) and is then reapplied (C) to the drum casing. This produces a repeat shift between the perforations of the member (40) and casing (30, 33), so that, in a subsequent second treatment station (36a-38a, 65), the fleece web (60), by being subjected to fluid, receives, as a result of the other position of the perforations in relation to one another, a second pattern which, on account of the repeat shift, is different from the first pattern and which is superposed on the latter in the desired way. Further places for the repeat shift and further treatment stations can also be present. <IMAGE> |
