| 摘要 |
The present invention relates in particular to a sheet transfer cylinder (1), the sheets having previously been printed by screen printing with the aid of an ink that contains particles that are orientable under the effect of a magnetic field, this cylinder being in the form of a ring, - which has, opening out at its surface, a peripheral annular channel (3) in which at least one magnet (4) for orienting said particles contained in the ink is positioned; - and which has suction means that open out at said surface, away from the channel, in the form of at least one zone provided with perforations (110) for pressing said sheets against this surface, characterized in that said at least one zone provided with perforations (110) is in one piece with the rest of the ring. |
