Polyethylene Coating: A skinny layer of polyethylene on both sides provides longevity. The outer layer shields the design and printing, while the internal layer functions as a sealant, building the carton absolutely leakproof. The main patents for food paperboard containers day back to the beginning of the final century. They https://gabletopcartons.blogspot.com/2025/01/gable-top-carton-leading-eco-packaging.html