| 摘要 |
<p>The apparatus has a feed cylinder adapted to deliver a continuous web. A perforation cylinder includes a surface provided with perforated protrusions that are distributed in a pre-defined manner. The perforation cylinder is associated with a counterpart that is intended to ensure constant and regular plating of the web in tangential contact of the perforation cylinder. The counterpart is mounted movable with respect to the perforation cylinder to allow initial positioning of an end of fabric on the perforation cylinder.</p> |
