1. With low density and high specific strength, a higher packaging yield can be obtained, that is, "packaging volume or packaging area per unit mass. This is the physical advantage of plastic packaging.
2. Most plastics have good chemical resistance, excellent acid resistance, alkali resistance, and various organic agents. They will not oxidize when placed for a long time. This is the chemical advantage of plastic packaging.
3. It is easy to form and the energy consumption required for forming is lower than that of metal materials such as steel. This is the low-carbon advantage of plastic bags.
4. It has excellent transparency and is easy to color. The plastic bag has a beautiful appearance.
5. It has excellent strength, high strength performance per unit weight, impact resistance, and easy modification.