The present invention provides a release liner for use in a pressure-sensitive adhesive sheet comprising a release layer on a substrate, wherein the release liner is obtainable by a process comprising the steps of:
- (1) providing a substrate;
- (2) producing an atmospheric pressure plasma discharge in the presence of a gas;
- (3) exposing the substrate to said atmospheric pressure plasma discharge;
- (4) introducing a liquid aerosol comprising a precursor into said atmospheric pressure plasma discharge, thereby forming a release layer on the substrate; and
- (5) curing the release layer on the substrate.
