Doctor blade coated with polymeric material and coating method

The present invention refers to a doctor blade comprising a metal support completely coated with a polymeric material.The doctor blade works in combination with a cylinder and consists of a steel support with a polished surface coated with a layer of variable thickness of polymeric material, comprising: In any case, the thicker layer coats at least the side of the edge ( or ) of the doctor blade that works in contact with the surface of the cylinder and the front head part of said side.The polymeric material that constitutes the coating layer is preferably Teflon s®, possibly with solid material added and advantageously with a dry lubricating material (Teflon®, molybdenum sulphide, graphite, etc.) added.The present invention also refers to a method of coating the metal support of the doctor blade with a layer of variable thickness of polymeric material, in particular of Teflon s®.