After more than 20 years of reform and development, my country's food industry has achieved world-renowned achievements. The annual industrial output value has exceeded 1 trillion yuan and has become one of the important pillar industries. The rapid development of the food industry has provided a huge market for the packaging industry, and plastic packaging has increasingly become an indispensable packaging material in the food industry. At the same time, the continuous advancement of plastic packaging technology has also made it possible for the food industry to adopt new processes and applications, especially the preservation and aseptic packaging technologies that support the packaging of dairy and meat products.