Method for producing a structured surface

A method for producing a decorative surface on a workpiece (1), comprising:

• feeding (S10) the workpiece (1) coated with a liquid layer (2) to a digital printing station;
• applying (S12) an agent capable of at least partially absorbing electromagnetic radiation, at least on a partial area of the surface of the liquid layer (2), or which, in contact with the surface, produces a reaction product which is capable of at least partially absorbing electromagnetic radiation;
• and
• irradiating (S14) the surface of the liquid layer (2) and of the agent with electromagnetic radiation having a wavelength of less than 300 nm;
• for a formation of a microstructure or nanostructure at the partial area of the surface of the liquid layer (2);
• wherein the agent undergoes a chemical reaction with the layer (2);
• wherein the chemical reaction occurs in at least one of the following:
• (a) upon impact on the surface of the layer (2) in such a way that an optical and/or haptic change of the surface occurs at the respective areas,
• (b) when the chemical reaction between the applied agent and the layer (2) is given sufficient time for the chemical reaction to at least partially take place, and
• (C) upon impact on the layer (2) such that the reaction product achieves by the irradiation (S14) at this area no or less micro- or nanostructure formation than on the areas on which no agent has been applied to the surface.