Possible Problems with Water-Based Adhesive When Labelling and Methods for Their Solution

POSSIBLE REASONS METHODS FOR SOLVING PROBLEMS
The label peels off
 Too little glue was 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 not in contact with the surface of the paper. A dry glue film is on the back of the label. The surface of the bottle is not cleaned sufficiently. Adhesive is contaminated with a foreign substance.
A large output on an adhesive pallet. Replace worn parts or repair.
The pressing mechanism is not properly adjusted. Adjust the necessary settings.
The label/coquette edges peel 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 label position. Adjust the necessary settings.
The clamping mechanisms are not adjusted. Adjust the necessary settings. Ensure that the water supply to the pressing mechanisms is properly 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 fibre direction. 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 pumps poorly
Adhesive is cold. Preheat adhesive to the operating temperature in accordance with the technical specifications.
Adhesive is mixed with a different trademark of glue. Rinse the equipment thoroughly. Replace the container with the proper adhesive.
 Low glue viscosity. Apply adhesive with a higher viscosity.
Adhesive splits and forms threads
Too much adhesive is applied. Reduce consumption.
The glue shaft and 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. Adjust the necessary settings.
"Floating labels"
Too much adhesive. Reduce the adhesive layer thickness.
High bottle humidity. Increase airflow around the labelling machine.
Weak strength of wet labels
Adhesive with excessive adhesion. Contact the glue supplier.
Weak strength of wet labels. Use labels made from stronger paper.
Incorrect clamp position. Adjust the necessary settings.
More than one label is removed from the cassette
The labels stick together due to insufficient print drying time. Soak a stack of labels to separate them from each other before loading into the cassette.
Glue spray occurs. Check to see if the glue supply can be reduced.
The cassette stops 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.

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