a process for electrochemically depositing a structured surface layer on a component , such as a machine component , particularly a steel water cylinder of a printing press , is disclosed . the process comprises the steps of defining an electrical parameter , such as a potential and / or an electrical current , effecting an electro - chemical layer deposition ; and depositing a surface layer on the component with a structured outer surface topography . the depositing step is performed by providing an initial pulse of the electrical parameter and forming a plurality of island formations of deposition material on a surface of the component to be electro - chemically coated , and subsequently providing a follow - up pulse of the electrical parameter and causing a growth of the deposition material on the plurality of islands for causing the structured outer surface topography .