Method for producing a structured surface

The method for producing a structured surface on a carrier material (12), comprises coating the carrier material with a silicate-based sol-gel-lacquer, partially hardening the coating, structuring the partially-hardened coating through stamping by a matrix (16), and completely hardening the stamped coating (14). The matrix for producing the structured surface comprises a stamping structure (18) with three dimensional stamping elements (20) with dimensions in a range of 30 nm to 30 mu m. The partial hardening and complete hardening of the coating are continuously carried out at 140-160[deg] C. The method for producing a structured surface on a carrier material (12), comprises coating the carrier material with a silicate-based sol-gel-lacquer, partially hardening the coating, structuring the partially-hardened coating through stamping by a matrix (16), and completely hardening the stamped coating (14). The matrix for producing the structured surface comprises a stamping structure (18) with three dimensional stamping elements (20) with dimensions in a range of 30 nm to 30 mu m. The partial hardening and complete hardening of the coating are continuously carried out at 140-160[deg] C in a continuous furnace. The stamping is continuously carried out with a stamping roller as matrix or with a heating matrix or in a heating chamber. The partial hardening of the coating and the structuring are partially carried out in single process. The carrier material consists of aluminum or aluminum alloy. The sol-gel-lacquer is polysiloxane produced by acid-catalyzed hydrolysis and condensation of a mixture of a first solution containing alkoxy silane and a second solution containing a colloidal silicic acid. The first solution is a solution with a first and second alkoxy silane and a solvent mixed with the first solution. The first alkoxy silane is tetraethoxysilane and the second alkoxy silane is methyl triethoxysilane. The solvent of the first solution is a polar solvent such as alcohol or ethylacetate. The alcoholic solvent consists of glycol or glycol compound and is ethylene glycol or buthoxyethanol. Ein Verfahren zur Herstellung einer strukturierten Oberfläche auf einem Trägermaterial (12) ist durch die folgenden Schritte gekennzeichnet: - Beschichten des Trägermaterials mit einem silikatbasierten Sol-Gel-Lack, - Teilaushärten der Beschichtung (14), - Strukturieren der teilausgehärteten Beschichtung (14) durch Prägen mittels einer Matrize (16), und - Vollaushärten der