On perfect bound lines, card inserts often overshoot the target area because of the line speed. Also, it may not exactly match the line speed hence the card may slide backwards which results in bad positioning on the package. Apply a static charge with the charging bar to the card as it hits the page to effectively hold the card in place.
A static charging system consists of a high voltage generator and an electrode or applicator and cabling. The high voltage generator supplies the high voltage needed to create a static charge. This can vary from 3 to 60 kVolt. The charging electrode or charging applicator comes in different shapes to enable an optimum result for each specific application. Size and shape differ to make optimum solutions for each situation.