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Electrostatic Printing Assist

GNH61

Druckhilfe ESA

GNH61 Top Loading

The infeed paper or film web is discharged by the discharge bar to eliminate any existing residual static charges. The nip voltage required in the printing nip is transferred into the conductive layer of the impression roller coating via the impression roller bar. The nip voltage (300...1000 V DC) causes the ink to transfer from the cells to the substrate with point-to-point accuracy and without high impression roller pressure. The discharge bar mounted on the outlet side eliminates any residual charges on the surface of paper or the film. A 2-layer impression roller is used for the ESA GNH61 system. The impression roller guarantees the even distribution of the charge in the printing nip.

GNN71

GNN71 Side Loading

The infeed paper or film web is discharged by the discharge bar to eliminate any existing residual static charges. The nip voltage required in the printing nip is transferred into the conductive layer of the impression roller coating via the rotary transformer. The nip voltage (300...1000 V DC) causes the ink to transfer from the cells to the substrate with point-to-point accuracy and without high impression roller pressure. The discharge bar mounted on the outlet side eliminates any residual charges on the surface of paper or the film. A 3-layer impression roller is used for the ESA GNN71 system. The impression roller coating guarantees the even distribution of the charge in the printing nip.

GNN75

GNN75 Core Charging

The infeed paper or film web is discharged by the discharge bar to eliminate any existing residual static charges. The required charge for the generation of the nip voltage will be fed directly via the bearing of the impression roller. The electric connection is made by a ball spring contact. The impression roller has to be insulated from surrounding press parts. The nip voltage (300...900 V DC) causes the ink to transfer from the cells to the substrate with point-to-point accuracy and without high impression roller pressure. The discharge bar mounted on the outlet side eliminates any residual charges on the surface of paper or the film. A 1-layer impression roller is used for the ESA GNN75 system. The impression roller guarantees the even distribution of the charge in the printing nip. The GNN75 can only be delivered in arrangement with the press manufacturer.

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