Diamond-coated doctor blade
AssigneeDaetwyler Swisstec AG
InventorsHans Jörg Brudermann, Sibylle Stiltz, Andreas Hugli
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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.
Claims18
A doctor blade, in particular for doctoring off printing ink from a surface of a printing form and/or for use as a paper doctor knife, comprising a flat and elongated main body having a working edge region formed 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, whereas monocrystalline and/or polycrystalline diamond particles are dispersed in the first coating, wherein the particle size of the diamond particles measures at least 5 nm and less than 50 nm.
A process for producing a doctor blade, wherein a first coating on the basis of a nickel-phosphorus alloy is deposited on a working edge region of the doctor blade formed in a longitudinal direction of a flat and elongated main body, whereas monocrystalline and/or polycrystalline diamond particles having a particle size of at least 5 nm and less than 50 nm are dispersed in the first coating.
Dependencies are inferred from the claim text.