Plastic packaging bags are mainly used in various industries of food packaging and food packaging. Due to their advantages such as affordable packaging costs, easy production and processing, easy control, and ease of manufacturing, they have become an extremely common packaging method on the market. The sealing performance and sealing strength of packaging bags are important factors in the quality of packaging bags, which are related to the quality and expiration date of the packaging contents, and are also important guarantees for the circulation of goods.