The entire process is produced in a clean workshop with extremely low particle pollution, no odor, and no foreign objects, meeting the requirements for clean drug packaging. Good flexibility, stretch resistance, puncture resistance, not easily damaged, with good impact resistance. The heat sealing performance is stable, the sealing strength is high, and efficient sealed packaging can be achieved, effectively blocking external pollutants. Stable chemical properties, no chemical reactions with most active pharmaceutical ingredients and intermediates, ensuring stable drug quality.