Food soft packaging bag is the last process of modern industry. It plays an important role in packaging, protection, beautification, publicity and convenient storage, transportation and sales. To a certain extent, food soft packaging has become an integral part of food. There are mainly vacuum bags, aluminum foil bags, cooking bags, quick-frozen bags, fresh-keeping bags, shrinkage bags, etc.

Because the cooking packaging bag is relatively thin, it can meet the sterilization requirements in a short time, so it can maintain the color, aroma and taste of food.

Packaged food can be stored at room temperature with a long shelf life.

The cooking packaging bag is light, soft, stackable, occupies less space, is convenient for storage and transportation, and consumers can carry it conveniently（ Cooking packaging bag is a kind of composite packaging designed to replace metal hard cans, also known as "soft cans". Cooking bags have the advantages that they can be stored at room temperature and have a long storage period. They can package both cold food and cooked food. They are easy to eat and carry. They can be used as tourist food. Therefore, they have developed rapidly at home and abroad in recent years. Its special packaging - cooking resistant composite film and bag has become an important part of flexible packaging production.