The invention relates to a method for producing a web-shaped composite material (30, 30') having a structured surface (13, 13'), comprising the steps: providing a web-shaped substrate (5) made of paper and/or plastic, applying a UV-curable coating layer (7) made of acrylated oligomer onto the substrate (5), forming a three-dimensional surface structure (13, 13ʹ) in the coating layer (7) which has been applied onto the substrate, and at least partially curing the coating layer by irradiation with high-energy radiation, preferably UV light. The aim of the invention is to be able to economically produce composite material of the aforementioned type using a method of this kind, which composite material is characterized by high mechanical strength and thermal resistance for use as a structuring means or as a coating material. This aim is achieved in that at least one adhesion promoter layer (8) containing acrylated oligomer, a reactive diluent and a photoinitiator which responds to high-energy radiation, preferably UV radiation, is applied onto the substrate (5) before the UV-curable coating layer (7) is applied, and in that the coating layer (7) comprising the three-dimensional surface structure (13, 13ʹ) is cured to such an extent that the composite material (30, 30ʹ), in the finished state, has an average Martens hardness according to DIN EN ISO 14577 in the range of 10-80 N/mm, wherein the indenter used as a test element for measuring the Martens hardness is pressed into the structured surface of the coating layer (7). The invention also relates to a composite material (30, 30ʹ) of this kind and to the use thereof.
- 출원번호 : EP2024/063036
- 출원인 : FRITZ EGGER GMBH &CO. OG;
- 특허번호 :
- IPC : D21H-019/20(2006.01);B32B-029/00(2006.01);B32B-038/06(2006.01);D21H-019/68(2006.01);D21H-019/82(2006.01);D21H-025/04(2006.01);D21H-025/06(2006.01);D21H-027/02(2006.01);D21H-027/18(2006.01);