Polyethylene Coating: A thin layer of polyethylene on either side offers sturdiness. The outer layer protects the design and printing, whilst the inner layer functions being a sealant, creating the carton absolutely leakproof. This process enables the manufacture of long lasting shelf goods in a method in which Tetra Pak https://gabletopmilkcartons.blogspot.com/2025/10/eco-friendly-liquid-packaging-gable-top.html