随着越来越多包装材料的发现和应用,我国的包装材料种类更加丰富。由于材料工业的高速发展,出现了许多新型包装材料,如微波炉专用包装、蒸煮包装、(聚酯)瓶等各种新型复合材料,以及具有较高抗压性、阻隔性、热封性、阻气性等高性能的包装材料。目前,我国包装工业基本达到了国际先进水平,并已跻身于世界包装大国的行列,而且年生产总值近五年来每年平均以20%的速度递增。随着低碳环保理念成为社会的主旋律,很多领 With the discovery and application of more and more packaging materials, the types of packaging materials in our country are more abundant. Due to the rapid development of the material industry, many new packaging materials have emerged, such as special packaging for microwave ovens, retort packaging, (polyester) bottles and other new composite materials as well as high pressure resistance, barrier properties, heat sealability, Gas and other high-performance packaging materials. At present, China’s packaging industry basically reached the international advanced level and has been among the ranks of the world’s packaging power, and the annual GDP in the past five years, an average annual increase of 20%. With the concept of low carbon and environmental protection has become the main theme of society, a lot of collar