Device for powdering printed sheets with the aid of an electrostatic charge
AssigneeWeitmann & Konrad GmbH & Co. KG
InventorsThomas Stober, Reiner Haas, Gunter Hess
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for powdering printed sheets, especially printed sheets made out of paper, whereby a powder coating device is arranged inside a sheet feeding device and an electrostatic charging device that is disposed outside the sheet feeding device is assigned to the sheet.
Claims16
A device for powdering printed sheets by means of a power coating device, which is positioned inside a sheet delivery mechanism, whereby a charging device is allocated to the sheet to electrostatically charge it, characterized in that the charging device is provided outside the sheet delivery mechanism in a location before the sheet enters the sheet delivery mechanism and is adjacent to the printed side of the sheet, characterized in that the charging device is positioned in the area of the last pressure roller of a rotary offset press, viewed in the direction of transportation of the sheet.
A device for powdering printed sheets by means of a power coating device, which is positioned inside a sheet delivery mechanism, whereby a charging device is allocated to the sheet to electrostatically charge it, characterized in that the charging device is provided outside the sheet delivery mechanism in a location before the sheet enters the sheet delivery mechanism and is adjacent to the printed side of the sheet, further characterized in that the charging device is positioned in the area of the last pressure roller of a rotary offset press, viewed in the direction of transportation of the sheet, characterized in that the charging device is positioned opposite the pressure roller.
A device for powdering printed sheets by means of a power coating device, which is positioned inside a sheet delivery mechanism, whereby a charging device is allocated to the sheet to electrostatically charge it, characterized in that the charging device is provided outside the sheet delivery mechanism in a location before the sheet enters the sheet delivery mechanism and is adjacent to the printed side of the sheet, further characterized in that the charging device is positioned in the area of the last pressure roller of a rotary offset press, viewed in the direction of transportation of the sheet, characterized in that the charging device is positioned immediately before a separation point of the sheet from the pressure roller.
Dependencies are inferred from the claim text.