论文部分内容阅读
随着包装安全要求的提高,包装材料的种类也在日益多样化。包装材料必须要有高阻隔性、阻氧性、阻湿性、透气性.还要有高的抗拉伸强度、耐撕裂、耐冲击强度、优良的化学稳定性、耐高温性,满足内容物的高温消毒和低温储藏等要求。为了满足这些要求,就要对生产技术有所改进,下面就国外的新技术作一介绍。
With the improvement of packaging safety requirements, the types of packaging materials are also increasingly diversified. Packaging materials must have high barrier, oxygen barrier, moisture resistance, breathability, but also have high tensile strength, tear resistance, impact strength, excellent chemical stability, high temperature resistance, to meet the content High-temperature sterilization and cryogenic storage requirements. In order to meet these requirements, we must improve the production technology, the following foreign technology to make an introduction.