Polyethylene Coating: A thin layer of polyethylene on both sides gives toughness. The outer layer protects the design and printing, while the inner layer functions like a sealant, earning the carton absolutely leakproof. The 1st patents for foods paperboard containers date back to the beginning of the last century. They https://customgablecarton.blogspot.com/2024/10/the-future-of-eco-friendly-packaging.html