Abstract: A doctor blade (100), in particular for doctoring off printing ink from an impression cylinder, comprises a doctor blade body (110) with a working edge (130) and a first doctor blade side (122) which faces the impression cylinder, in particular, during operation, and a second doctor blade side (121) which faces away from the impression cylinder, in particular, during operation. The doctor blade body (110) is provided with a coating (150) which comprises a polymer, wherein the coating (150) comprises particles (160) at least in one part region. The particles (160) are configured as hard material particles (160), and a mass proportion of the hard material particles (160) in the coating (150) on the first doctor blade side (122) is higher than a mass proportion of the hard material particles (160) in the coating (150) on the second doctor blade side (121).

Abstract: A doctor blade (100), in particular for doctoring off printing ink from an impression cylinder, comprises a doctor blade body (110) with a working edge (130) and a first doctor blade side (122) which faces the impression cylinder, in particular, during operation, and a second doctor blade side (121) which faces away from the impression cylinder, in particular, during operation. The doctor blade body (110) is provided with a coating (150) which comprises a polymer, wherein the coating (150) comprises particles (160) at least in one part region. The particles (160) are configured as hard material particles (160), and a mass proportion of the hard material particles (160) in the coating (150) on the first doctor blade side (122) is higher than a mass proportion of the hard material particles (160) in the coating (150) on the second doctor blade side (121).

Abstract: A doctor blade for scraping printing ink from a surface of a printing plate, comprising a flat and elongated main body having a working edge area formed in a longitudinal direction, the working edge area being coated with at least one first coating on the basis of a nickel-phosphorus alloy, and is characterized in that the first coating contains at least one additional component for improving the wear behavior of the doctor blade.

Abstract: A doctor blade for wiping printing ink off a surface of a printing plate, comprising a flat and elongated main body having a working edge region configured in a longitudinal direction, the working edge region being covered with a first coating on the basis of a nickel-phosphorus alloy applied by electroless deposition, and hard material particles being dispersed in the first coating, characterized in that the first coating is covered with a second coating on the basis of galvanically deposited nickel.

Abstract: A method for producing doctor blades from metal, in particular from steel, the doctor blades to be produced having a reduced material thickness in a region of a working edge. The material thickness is essentially constant in the region of reduced material thickness. By a planing operation being used upon a basic body with an essentially constant material thickness, the region of reduced material thickness is generated. By the region of reduced material thickness being generated by means of a planing operation, an efficient and cost-effective method for the production of doctor blades is achieved.

Abstract: A doctor blade for scraping printing ink from a surface of a printing plate, comprising a flat and elongated main body having a working edge area formed in a longitudinal direction, the working edge area being coated with at least one first coating on the basis of a nickel-phosphorus alloy, and is characterized in that the first coating contains at least one additional component for improving the wear behavior of the doctor blade.

Abstract: A method for producing doctor blades from metal, in particular from steel, the doctor blades to be produced having a reduced material thickness in a region of a working edge. The material thickness is essentially constant in the region of reduced material thickness. By a planing operation being used upon a basic body with an essentially constant material thickness, the region of reduced material thickness is generated. By the region of reduced material thickness being generated by means of a planing operation, an efficient and cost-effective method for the production of doctor blades is achieved.

Abstract: A doctor blade for wiping printing ink off a surface of a printing plate and/or for use as a paper doctor knife, has a flat and elongated main body including a working edge region configured in a longitudinal direction, wherein at least the working edge region is covered with a first coating on the basis of a nickel-phosphorus alloy. The doctor blade is characterized in that monocrystalline and/or polycrystalline diamond particles are dispersed in the first coating, wherein a particle sizes of the diamond particles measure at least 5 nm and less than 50 nm.

Abstract: A doctor blade for wiping printing ink off a surface of a printing plate, comprising a flat and elongated main body having a working edge region configured in a longitudinal direction, the working edge region being covered with a first coating on the basis of a nickel-phosphorus alloy applied by electroless deposition, and hard material particles being dispersed in the first coating, characterized in that the first coating is covered with a second coating on the basis of galvanically deposited nickel.