Now with the continuous development of the food packaging bag industry, food packaging bags are no longer limited to large packaging, and some small foods have also begun to move towards the road of coarse packaging.In major shopping malls, food packaging bags as small as melon seeds, candies and other small packages are all packed in food packaging bags, which also means that food packaging bags play an important role in our daily life. Let’s analyze the characteristics of food packaging bags.Food packaging bags are moisture-proof and prevent food from spoiling and damp; on the other hand, they are protected from light and have good sealing performance, which can isolate itch molecules in the air. In particular, fried food has higher requirements on the sealing of packaging bags; the dazzling colors improve the grade of the product and play a role in advertising promotion.With the continuous development of the economy, packaging has also become an important part of it. In the past, scattered foods such as melon seeds and peanuts were produced in professionally designed food packaging bags. The effect is getting bigger and bigger.