20100006542 | Method for Structuring the Surface of a Pressed Sheet or an Endless Strip - The invention relates to a method for producing a metallic pressed sheet or an endless strip, whereby a surface structure is produced by applying a mask for partial chemical passivation followed by chemical surface treatment. The invention also relates to a device for implementing said method. In order to significantly improve the reproducibility and the resolution of the mask obtained, the mask is produced from a UV-hardening lacquer which is applied by a suitable device. The resolution is improved by means of a nozzle matrix which sprays the UV-hardening lacquer in dots, the individual dots forming a pattern as a result of the overspraying thereof, thereby forming the mask to be produced. The UV-hardening lacquer is especially advantageous in that it can be removed from the surface very easily after the etching process, and enables a high reproducibility compared to the conventional screen printing methods. | 01-14-2010 |