METHOD OF PRODUCING ETCHABLE STRUCTURES USING A LASER HAVING A WAVELENGTH IN THE INFRARED RANGE

摘要

The invention relates to a method for producing etch-resistant structures (masks) on the surfaces of metallic pressing tools, specifically continuous press bands or press plates, by means of a laser, wherein a surface of the press tool to be structured is provided with a thermally sensitive, etch-resistant coating and the laser burns structures out of the etch-resistant coating. In order to prevent negative influences when lasering on the surface of the press plate, the invention proposes that the structure is burned with a laser that emits light having a wavelength in the infrared range between 780 nm and 1 mm.