Various materials with different characteristics are combined to improve the air permeability, moisture permeability, oil resistance, water resistance and drug resistance of packaging materials, so that they can play a role in insect prevention, dust prevention, microbial resistance, light, smell and other odor isolation, and heat resistance, cold resistance, impact resistance have better mechanical strength and processing applicability, and have good printing and decoration effects.

Packaging bag refers to the bag used to pack various articles, so that the goods can be easily transported and stored in the production and circulation process. It is widely used in daily life and industrial production. The actual figures show that 80% of the used plastic bags are finally transported to the garbage dump area for treatment like ordinary garbage, and only 7% of the plastic is recycled.