Aluminum foil Yin-Yang bag is a packaging bag made of aluminum foil and plastic film, which has the characteristics of moisture-proof, anti-oxidation, heat insulation, and radiation protection. It can effectively isolate the intrusion of air, water vapor and light, and maintain the freshness and quality of the packaged items. Therefore, it is widely used in food, medicine, cosmetics, electronic products and other fields . It has the following advantages:
(1) Outer bag protection: Through aluminum foil packaging, food can be separated from oxygen, water vapor, stains, etc. The cleanliness, novelty and safety of food during the shelf life are the main functions of the packaging bag.
(2) Physical protection: Food stored in yin-yang aluminum foil bags can be protected from squeezing, impact, vibration and temperature difference.
(3) Safety: Yin-Yang aluminum foil bags can also prevent food from being mixed with other products.
(4) Convenience: The packaging bag can be easily added, loaded and unloaded, stacked, displayed, sold, opened, repacked, used and reused.