Paying attention to the environmental protection and safety of snack packaging bags has become a trend and necessity in the current and future snack packaging industry. As consumers’ environmental awareness increases and they pay more and more attention to food safety, the environmental protection and safety of snack packaging bags have become one of the important factors in making purchasing decisions.

Regarding environmental protection, many consumers have a negative impression of plastic packaging bags because they are not easily decomposed and cause pollution to the environment. Therefore, some biodegradable materials, such as starch-based materials, paper, etc., are becoming substitutes for snack packaging bag materials. These materials are degradable, recyclable, and recyclable, which are conducive to environmental protection and sustainable development.