Patent ID: 11883843
Assignee: HYMMEN GMBH MASCHINEN—UND ANLAGENBAU
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  E | IPC B  E

Claim 0:
1. 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.