Rotogravure cylinders, products and use thereof
AssigneeParamount International Services Ltd.
InventorIoannis IOANNOU
Life of this patent
Estimating the term…
Abstract
The rotogravure cylinder comprising a rotary gravure base and thereon a copper engraving layer contains a zinc layer between a gravure base and a layer package suitable for engraving and printing. This layer package for instance can comprise a metallic support layer, a copper engraving layer and suitably a protection layer. Deposition of the zinc layer may be tuned for thickness variation, in combination with deposition of the layer package in a fixed thickness.
Claims21
Rotogravure cylinder comprising a cylindrical rotary gravure base onto which a circumferential zinc layer containing zinc or a zinc alloy extends, the base and the circumferential zinc layer having a mutual interface, the circumferential zinc layer is selected from the group consisting of pure zinc, zinc and aluminum alloys having less than 10 weight percent aluminum, zinc and nickel alloys having less than 10 weight percent nickel, zinc and copper alloys having less than 10 weight percent copper, zinc and magnesium alloys having less than 10 weight percent magnesium, and combinations thereof, on which circumferential zinc layer a layer package suitable for engraving and printing is present, which layer package comprises a metallic support layer and a copper engraving layer.
Rotogravure cylinder comprising a cylindrical rotary gravure base onto which a circumferential zinc layer containing zinc or a zinc alloy extends, the base and the circumferential zinc layer having a mutual interface, the circumferential zinc layer is selected from the group consisting of pure zinc, zinc and aluminum alloys having less than 10 weight percent aluminum, zinc and nickel alloys having less than 10 weight percent nickel, zinc and copper alloys having less than 10 weight percent copper, zinc and magnesium alloys having less than 10 weight percent magnesium, and combinations thereof.
Use of the rotogravure cylinder comprising a cylindrical rotary gravure base onto which a circumferential zinc layer extends, the base and the circumferential zinc layer having a mutual interface, the circumferential zinc layer is selected from the group consisting of pure zinc, zinc and aluminum alloys having less than 10 weight percent aluminum, zinc and nickel alloys having less than 10 weight percent nickel, zinc and copper alloys having less than 10 weight percent copper, zinc and magnesium alloys having less than 10 weight percent magnesium, and combinations thereof, on which circumferential zinc layer a layer package suitable for engraving and printing is present, which layer package comprises a metallic support layer and a copper engraving layer which is engraved with a desired pattern for the printing of packaging materials by transfer of ink from the rotogravure cylinder to the packaging material.
Dependencies are inferred from the claim text.