The food packaging forms we usually see are various. The reason is that the requirements for food packaging skills will vary with the variety and characteristics of the food itself. In addition, the transportation route and transportation link, transportation method, Factors such as storage environment, sales channels, expected shelf life, and consumer groups will in turn affect food packaging technology. There are many specific requirements for food packaging, including internal requirements and external requirements.The food packaging bag has strong sealing performance, especially the airtightness of the gas must be achieved, otherwise, once the gas overflows, the food storage will be affected to varying degrees.The food bags produced by some food packaging bag manufacturers need to be laminated multiple times, that is, to combine various film layers together, andThe softness of the packaging bag has nothing to do with the number of film layers, but only with the processing technology and the variety of additives.The development of packaging bags has gone through four distinct stages: the original packaging bag stage, the large packaging bag stage, the small packaging bag stage, and now gradually entering a new stage of environmentally friendly (green) packaging bags.With the development of the commodity economy, the commodity nature of packaging itself is becoming more and more obvious. It has become a special product that is no longer dependent on commodity production, a widely used product that all commodities cannot do without.