RPC - Delamination

Classification 

  • A major defect if in the seal area, or when delamination, anywhere in the inner or outer plies of the pouch, is in excess of 1 cm2 (or equivalent area).
  • A minor defect if outside the seal area, or when delamination, anywhere in the inner or outer plies of the pouch, is less than 1 cm2 (or equivalent area).

Identification 

Delamination is a separation of the package laminate materials.

Causes 

  1. If at the seal, the sealing head was too hot during the seal formation.
  2. If located elsewhere, the bond strength of the lid stock or container material is inadequate.