双向拉伸聚丙烯、聚酰胺(尼龙)和聚酯薄膜以及涂有PVDC的玻璃纸在食品(工业)包装中得到了广泛的应用,这是周知的事。但是,这些材料燃烧后将产生氯气而污染环境,因而在欧洲和美国正在受到日益严格的限制,一些国家例如瑞典丹麦的一些大型超级市场已停止使用这些包材,德国、意大利等国家也有类似的趋向,必须引起人们的注意。 Biaxially oriented polypropylene, polyamide (nylon) and polyester films and PVDC coated cellophanes are widely used in food (industrial) packaging, as is well known. However, these materials burn chlorine to pollute the environment and are therefore becoming increasingly stringent in Europe and the United States. Some countries, such as Sweden, have stopped using the packaging materials in some large supermarkets in Denmark. Countries like Germany and Italy also have similar Trend, we must attract people’s attention.