PET AL PE Delamination: 4 Steps to Improving Solventless Lamination Peeling Strength
Achieving a high-bond solventless lamination peeling strength in flexible packaging structures containing aluminum foil—specifically PET/AL/PE—presents distinct mechanical and chemical challenges. Aluminium foil (AL) is a non-absorptive, rigid substrate with zero initial tack. Any slight change in tension, adhesive chemistry, or surface energy will result in PET AL PE delamination. This technical guide breaks down the systematic variables…
