Potential Problems With Hot-Melt Adhesive Bbonding

POSSIBLE REASONS METHODS FOR SOLVING PROBLEMS
The label is peeled off
Too small amount of glue applied. Increase the amount of glue applied. Check the glue supply with a pump, if necessary, increase the number of cycles per minute.
Adhesive is in poor contact with the surface of the paper. On the back of the label is a dry glue film. The surface of the bottle is not cleaned sufficiently. Adhesive is contaminated with strange products.
A large output on an adhesive pallet. Replace worn parts or repair.
The pressing mechanism is not properly adjusted. Make the necessary settings.
The edges of the label, the coquette, are peeled off
The edges of the labels are not lubricated with glue. Check whether the labels are completely covered with a uniform layer of glue. Configure the labeling machine.
Incorrect position of the label. Make the necessary settings.
The clamping mechanisms are not adjusted. Make the necessary settings. Ensure that the water supply to the pressing mechanisms is optimally adjusted.
The area of the glue pallet is less than the area of the label. Check the shape of the adhesive layer on the back of the label. Select the adhesive pallet of the required size.
The glue pallet is not completely covered with adhesive. Check the adhesive supply from the glue shaft to the pallet. Adjust or replace the glue pallet if necessary.
Ready labels have the wrong direction of fibers. Contact the label manufacturer.
Output on the glue shaft. Replace worn parts or repair.
The surface of the neck of the bottle does not match the shape of the coquette. Carefully check the shape of the coquette with the neck of the bottle.
Adhesive is poorly pumped
Adhesive is cold. Preheat adhesive to the operating temperature in accordance with the technical specifications.
Adhesive is mixed with a different TM of glue. Rinse the equipment thoroughly. Replace the container with adhesive.
Low viscosity of the glue. Apply adhesive with a higher viscosity.
Adhesive splits and forms threads
A big amount of adhesive applied. Reduce consumption.
The glue shaft, glue pallets are damaged. Replace or repair the shaft and glue pallets.
Traces of adhesive on the bottle. Bottles / labels are glued together after labelling
The glue was washed off with condensate. Reduce the thickness of the adhesive layer. Add air to the labelling machine.
Incorrectly configured labelling machine. Make the necessary settings.
"Floating labels"
Too much adhesive. Reduce the thickness of the adhesive layer.
High humidity of the bottle. Add air to the labelling machine.
Weak strength of wet labels
Adhesive with high adhesion. Contact the glue supplier.
Weak strength of wet labels. Use labels from stronger paper.
Incorrect position of the clamp. Make the necessary settings.
More than one label is removed from the cassette
The labels were stuck together due to insufficient drying time of the prints. Dissolve a stack of labels to separate them from each other before loading into the cassette.
Spray the glue. Check if the glue supply can be reduced.
The stops on the cassettes are not adjusted. Adjust the grip and pressure in the cassette.
The labels are not removed from the cassette
Adhesive with insufficient adhesion. Contact the glue supplier.
The stops on the cassettes are not adjusted. Adjust the grip and pressure in the cassette.

Previous

Next

Subscribe to our newsletter

Products