PE bag is a common plastic bag made of polyethylene (PE) material. Polyethylene is a plastic polymer with good transparency, waterproofness, and corrosion resistance, and is therefore commonly used in the manufacture of food packaging bags and shopping bags. PE bags are very common in daily life and can be purchased in supermarkets, shopping malls, convenience stores, and other places. They are usually used for packaging food, cosmetics, stationery, and other items. Due to the excellent waterproof and corrosion-resistant properties of polyethylene, PE bags are also commonly used for packaging items that require moisture resistance or protection, such as electronic products or clothing. However, it should be noted that PE bags are not entirely environmentally friendly materials. Although it can be recycled and reused, long-term use and disposal can have adverse effects on the environment. Therefore, in order to protect the environment, we should try to minimize the use of plastic bags and choose environmentally friendly alternatives, such as biodegradable bags or cloth bags