单向排气和充气技术在包装中的应用

应用单向排气和充气技术的包装主要有自动排气包装、真空包装、充气包装3种形式。自动排气包装主要通过单向阀实现自动排气功能，在咖啡包装、微波加工食品包装、特种危险品包装等领域应用较多；真空包装主要通过单向阀将包装内的气体向外抽排，主要应用于家庭真空储物袋；充气包装有充气袋包装和充气垫包装2种形式，主要通过单向阀实现充气功能，其缓冲性能与缓冲垫的充气量、长宽尺寸、薄膜的阻隔性能及所处环境的温度相关，主要应用于质量较小的电子产品、酒类、易损坏贵重物品、精密仪器等包装。

Application of One-Way Exhaust and Inflation Technology in Special Packaging

There are three packaging forms in the application of the one-way exhaust and inflatable technology in packaging which are automatic exhaust packaging, vacuum packaging and inflatable packaging. Automatic exhaust packaging realizes the automatic exhaust function mainly through the one-way valve and is applied in coffee packaging, microwave processing food packaging, special packaging of dangerous goods etc.. By using one-way valve, vacuum packaging pumps the gas out of the package and its main application is in family vacuum storage bag. Inflatable packaging has forms of inflatable bag and an inflatable cushion packaging, the charging function is realized mainly through the one-way valve while its cushioning properties depend on the inflatable volume, length and width size of the buffer pad, the barrier properties of the thin film and the related environment temperature and it is mainly used in packaging for small electronic products, liquor, fragile valuables and precision instruments.