Food packaging materials are an inseparable and important part of food. It plays an important role in protecting, promoting and facilitating the storage, transportation and sale of food. However, due to its direct contact with food, some inferior food packaging materials have long-term use, and the toxic and harmful substances contained in the food will gradually infiltrate into the food during storage and use, causing chronic poisoning in the body and causing direct damage to the body of the consumer. The hazards, this article will introduce you to the advantages of green packaging materials. The metal materials used in current food packaging include iron, aluminum, stainless steel, and the like. The packaging material can use metal, because the metal has better ductility and is more convenient to process. The outer packaging formed by the metal has better protection for the internal food, and the metal is easy to be packaged and thus can be promoted. However, metal is good for paper, glass and ceramics, but the price is relatively high and the packaging cost is not cheap. Moreover, the chemical nature of the metal is relatively active, it is oxidized and eroded in the air, and it is easy to chemically react with foods containing strong acidity and alkalinity, thereby causing pollution to food. Therefore, at present, although metals can be widely used and have an important position, their use is limited, and they are generally used for canned packaging. Packaging should be easy to reuse (Reus or easy to recycle (Recycl) through repeated use, or through recycling of waste, production of recycled products, incineration using heat, composting to improve soil, etc., to achieve the purpose of recycling does not pollute the environment And make full use of resources. Article source address: http:// Hair Scissors,6 Inch Hair Cutting Scissors,Cutting Hair Scissors Set,Design Barber Scissors Set Zhangjiagang Mister Tools Co., Ltd , https://www.mingshitools.com