Application and Service Temperatures for Packaging Labels

A label may withstand cold storage after it has bonded and still be unsuitable for application on a cold package.

Application temperature describes the conditions at the moment the label goes on. Service temperature describes the range it faces once applied. The supplier's data sheet should identify both for the specific label construction.

Measure the surface at application

The surface can be colder than the air near the labeling station. Let the planned package and label stock reach the intended line conditions and check for moisture or contamination. Apply the label with the planned pressure and allow the specified dwell before judging the bond. Use the final surface finish for this trial.

Check the expected storage and use separately

After application, expose a matched set to the agreed service conditions and keep a comparison set. Inspect for edge lift, curling, adhesive movement or changes in adhesion. Record where and when the change appeared. The useful specification gives the line team one set of limits for application and the quality team a separate set for the bonded label.

Packaging sample showroom of SamBound New Material Technology Company Ltd. Company information at sambound.com.

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