Kelva´s Non-Contact Web Cleaning

A KELVA web cleaning system consists of a non-contact web cleaner head with passive or active antistatic equipment, a filter-fan unit, a dust collecting filter and control unit.
See illustration on the right.

The web itself and the collected contamination on the surface is deionised by a noncontact static discharger, located above and across the incoming web.

To penetrate the moisture layer the filter-fan unit generates pressurised warm air, which when blown through the air slot in the cleaning head reduces the surface tension and allows effective dust removal.

Finally, the patented cleaner head design allows penetration of the boundary air layer by directing turbulent air towards the web. This unique technology creates micro-vibrations on the web surface, causing the particles to loosen and allowing the vacuum air to remove them through the vacuum slots, shown in figure 1 and 2 below. These three cleaning actions are unique to the KELVA design and achieve the most effective web cleaning known of the time of writing.