A security function based on a polymer layer including a first region and a further region

摘要

SUMMARY OF THE INVENTION The present invention relates generally to a substrate comprising a) a substrate comprising a substrate surface, b) a polymer layer comprising a polymer layer surface, wherein the polymer layer comprises i) a polymer, ii) Wherein the polymer layer surface comprises a first region and a further region wherein the wetting angle against wetting by the water of the first region and the wetting angle of the further region with water And the absolute value of the difference from the wetting angle is at least about 10 .BACKGROUND OF THE INVENTION