A label that looks correct at application can still lift, tunnel or fall off during filling, refrigeration, shipping or customer use. Most failures come from a mismatch between adhesive, surface, application process and service conditions.
Nine common causes
- Low-surface-energy plastic: untreated PE and PP often need a more aggressive adhesive.
- Oil or residue: mold release, lotion, dust and condensation reduce contact.
- Application below minimum temperature: the adhesive cannot wet out correctly.
- Immediate cold storage: the bond has no dwell time to build strength.
- Sharp curvature: a stiff label fights the container and lifts at the edges.
- Squeezable packaging: the face stock and adhesive cannot flex together.
- Moisture exposure: paper swells or the adhesive loses performance.
- Varnish or ink incompatibility: decoration reaches the adhesive zone or affects die cutting.
- Incorrect storage: heat, humidity and age reduce label performance before use.
Build a realistic test
Use production containers, not a clean substitute. Apply labels at the real line temperature and pressure. Allow the planned dwell time, then expose samples to refrigeration, freezing, water, oil, squeezing, abrasion and transport. Record edge lift and bond at 24 hours, several days and the expected product life.
Information a label supplier needs
- Container material and surface treatment
- Diameter, curvature and squeeze behavior
- Application and service temperatures
- Water, oil, chemical and abrasion exposure
- Manual or automatic application
- Required life and removal behavior
Do not approve only by touching a sample immediately after application. Adhesive selection should be based on documented conditions and a production-representative test.
Send your container and use conditions for a label material and adhesive recommendation.