Cooking bag is a kind of composite plastic film bag that can be heated. It has the advantages of canned containers and boiling water resistant plastic bags. After more than ten years of use, it is an ideal sales packaging container. The cooking bag is composed of three layers of materials, and the typical structure of the cooking bag is: the outer layer is polyester film for strengthening; The middle layer is aluminum foil, which is used for anti-light, anti-moisture and anti-leakage; The inner layer is a polyolefin film (such as polypropylene film) for thermal bonding and food contact.The Retort Pouch Packaging Bags have the following advantages:
1.Maintain the color, aroma, taste and shape of food. The cooking bag is thin, which can meet the sterilization requirements in a short time, and save the original color, aroma, taste and shape of the food as much as possible.
2.Easy to use, without the application of special tools can be easily opened. Food packaging bags, compared with glass containers and metal container packaging, cooking packaging bags have lower manufacturing costs and a variety of contents.
3.Impermeable to air, water and light, the contents are almost impossible to undergo chemical changes, can better maintain the color and flavor of food, can be stored at room temperature, and the quality is stable.
4.Good resistance to air and moisture, good mechanical strength, heat resistance. Good printability, good cooking resistance of printing ink, less residual solvent, no discoloration. Good cooking resistance, stable size after cooking.
5.Lower manufacturing costs. The composite film of the cooking bag is cheaper than the metal plate, and its production process and required equipment are very simple, so the price of the cooking bag is lower.