Design principles of good price and quality food packaging bags:
1. Strength requirements
Considering that food is not damaged by various external forces during transportation, storage and stacking, such as pressure, shock, vibration and other factors, there are strict requirements on the strength of good price and quality food packaging bags.
2. Barrier requirements
Barrier property is one of the important attributes in the design of good price and quality food packaging bags. During the storage process of many foods, if the barrier property of the packaging bag is poor, it is easy to cause food quality problems.

3. Breathing requirements
There are many foods that retain their respiratory function during storage. Therefore, the design material or container of good price and quality food packaging bags has air permeability, or can control breathing, so as to achieve the purpose of keeping fresh.
4. External requirements
Good price and quality food packaging bags can reflect the characteristics of commodities and are an important means to show the image of food.
5. Safety requirements
Good price and quality food packaging bags have strict standards for design safety, including hygiene and safety, handling safety, use safety, health and safety, etc., which are reflected in all aspects of raw materials, design, production, quality inspection, and transportation.