Cold Glue (Wet Glue) Solutions

What Drives Cold Glue Label Quality

On a Solomatic, Topmatic or Universella, label quality comes down to a chain of contact points: the glue roller lays a film on the pallet, the pallet carries it to the label, the gripper cylinder picks the label off the magazine, and the brushes press it down. Every defect you see on the bottle traces back to one of those hand-offs.

Reading the defect

• Dog-eared or lifted corners usually mean an uneven glue film, which points at a worn or pitted pallet face.
• Labels missing entirely or double-feeding point at the magazine and gripper timing rather than the glue.
• Skewed or rotated labels usually mean gripper cylinder wear or a synchronisation problem in the aggregate.
• Glue squeezing out past the label edge means the film is too heavy — often a glue roller shaft that has drifted out of alignment.

Refacing beats replacing

Pallets and glue rollers are wear items, but they are not disposable. Re-machining a pallet face back to factory tolerance restores an even film for a fraction of the cost of new tooling, and a rebuilt aggregate with new turret bearings and a properly aligned roller shaft will run like the day it was commissioned.

Keeping a spare on the shelf

The aggregate exchange program exists so that an aggregate rebuild never has to happen on your workbench during a production window. You install a tested unit, ship the core back, and the changeover is measured in minutes rather than days. Most customers who run cold glue continuously keep one exchange unit on hand for exactly this reason.

If you are not certain which part of the chain is causing your defect, describe what you are seeing on the container and what you are running. We will tell you where we would look first. If the machine is already down, our technicians provide labeling machine repair on site.