RIBBON TACKING POWER TACK
The electrostatic ribbon tacking System POWER TACK is used in the folders of heatset web offset and publication gravure printing presses. Their task is to electrostatically block the incoming paper ribbons to prevent dog ears. This is a standard feature for new presses and available for retrofitting on all common heatset presses of the world. High voltage generators generate positive and negative high voltage which is passed on to the charging bars mounted in the folder. The positive and negative bars are arranged opposite each other. The ribbons pass between them. The resulting force causes the paper ribbons to attract each other, the air in between is displaced and the ribbons are pressed against each other. As a result, the press can run at a higher speed with better folder accuracy.
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