| 摘要 |
<p>Device for coating disks (3), particularly optically readable data carriers, with a holding device (2) for holding a disk to be coated (3), an annular nozzle unit (8) for the application of coating liquid to the disk (3) and a collection zone (7). The coating liquid is applied continuously from the nozzle unit (8) and reaches the collection zone (7) via an annular wetting zone (15), being returned from the collection zone (7) to the nozzle unit (8) via a storage tank (19). The movement unit (6) permits the disk (3) to be brought concentrically into contact with the wetting zone (15) and again removed from it. A ring (16) of coating liquid remains on the disk (3) as a result of adhesive forces. This ring (16) is uniformly distributed over the disk, for example, by means of a centrifuge. The continuous flow of coating liquid permits a constant viscosity of the coating liquid to be achieved. Those problems which can occur with straight-line application are avoided. Moreover, the design of the coating device is simple.</p> |
