Static Control On A Vacuum Drum Labeller

Problem

Label stock entering into the label applicator can become highly charged on the lead and trail ends of the label.

This will result in:

• The label wrapping round the rotary knife
• Glue being applied to the vacuum drum
• Labels sticking to the vacuum drum and not the bottles 

Solution

Neutralising the web prior to entry to the applicator, will reduce the charges sufficiently to prevent mis-feeding and subsequent line stoppages. 

The drawing shows two 915 bars mounted before the nip roller.