Abstract: A method of producing a doctor blade from a band. A grinding wheel is positioned above the band with its axis of rotation not at right angles to the edge of the doctor blade. The grinding wheel then is rotated and the band is moved beneath the grinding wheel parallel to its edge.

Abstract: The present invention refers to a doctor blade (1) comprising a metal support (3) completely coated with a polymeric material. The doctor blade (1) works in combination with a cylinder (2) and consists of a steel support (3) with a polished surface coated with a layer of variable thickness of polymeric material, comprising: an ultrathin layer (0) which coats the whole surface of the doctor blade (1); a thicker layer (6) which coats one side of one edge (4, 5) of the doctor blade (1) or both sides of one edge (4, 5) of the doctor blade (1) or the same side of both edges (4, 5) of the doctor blade (1) or both sides of both edges (4, 5) or one side of the doctor blade (1) or both sides of the doctor blade (1). In any case, the thicker layer (6) coats at least the side of the edge (4 or 5) of the doctor blade (1) that works in contact with the surface of the cylinder (2) and the front head part of said side.

Abstract: A pre-honed doctor blade (1) with a lamella profile (2), produced by means of a grinding wheel (3), wherein the lamella (2) has a curved profile (shaped as an arc of a circle or as an arc of an ellipse) and the manufacturing grooves (4) produced by the grinding wheel (3) on the lamella (2) are not parallel to the edge of the doctor blade (1). A method of producing said doctor blade (1) is also described, comprising at least the steps of: positioning above the band a grinding wheel (3) with its axis of rotation not at right angles to the edge of the doctor blade (1); setting the grinding wheel (3) in rotation; moving the band beneath the grinding wheel (3) parallel to its edge. The grinding wheel 3 can be a cylindrical grinding wheel or a conical grinding wheel; during the processing, the edge of the doctor blade (1) can be maintained on the vertical drawn from the centre of the grinding wheel (3) or offset with respect to said vertical.

Abstract: The present invention refers to a doctor blade (1) comprising a metal support (3) completely coated with a polymeric material. The doctor blade (1) works in combination with a cylinder (2) and consists of a steel support (3) with a polished surface coated with a layer of variable thickness of polymeric material, comprising: an ultrathin layer (0) which coats the whole surface of the doctor blade (1); a thicker layer (6) which coats one side of one edge (4, 5) of the doctor blade (1) or both sides of one edge (4, 5) of the doctor blade (1) or the same side of both edges (4, 5) of the doctor blade (1) or both sides of both edges (4, 5) or one side of the doctor blade (1) or both sides of the doctor blade (1). In any case, the thicker layer (6) coats at least the side of the edge (4 or 5) of the doctor blade (1) that works in contact with the surface of the cylinder (2) and the front head part of said side.