PB - Leaker (Pulltab)

Classification 

  • A critical defect.

Identification 

This is a leakage through or around pulltab.

Causes 

  1. The sealing bar settings were not correct (i.e. the temperature, pressure and/or dwell time).
  2. Contaminants were present in the seal area during seal formation.
  3. The packages were flexed and stressed during sealing, processing and/or handling.