Polyethylene Coating: A Thin layer of polyethylene on each side delivers toughness. The outer layer shields the design and printing, while the interior layer acts for a sealant, producing the carton wholly leakproof. The primary patents for food stuff paperboard containers date back to the start of the final century. https://gabletopcartonsjuice.blogspot.com/2024/10/gabletop-pak-pioneering-sustainable.html