According to the number of layers of plastic film, plastic vacuum bags can be divided into single film and composite film two categories of vacuum bags, which can be divided into one layer, two layers, three layers, four layers, and even 10 layers. vacuum Package are used in transport packaging and sale packaging. So how should we choose plastic vacuum Package after all? Bags today for us to recommend the selection of key.https://www.wenxipacking.com/color-printing-composite-packaging/vacuum-package/
1, plastic bag after vacuum puncture strength. Whether transporting packaging or selling packaging, one of the important roles of packaging bags is to maintain food. If most of it is punctured, it won't be maintainable. Therefore, we need to know whether our products have sharp and hard substances, and what grade can be reached by puncture. The ordinary method is to let the packaging manufacturer supply samples, vacuum Package test themselves, and then throw, throw, press and other methods, and then see if there is a broken bag phenomenon.
2. What environment is the vacuum Package used in? Including processing environment, storage environment, transportation environment, different environmental requirements to select different plastic film and printing process. For example, ready-to-eat marinated duck feet, after vacuum Package, choose high temperature sterilization and boiling sterilization, and the information requirements for the packaging bag are different. High temperature sterilization requires plastic film to withstand high temperature above 121 ° C, boiling sterilization requires high temperature resistance of 100 ° C, and it is insoluble in high temperature environment, and its water resistance is strong.
3. Maintain other needs for food. The choice of vacuum Package for food is to extend the shelf life and better preserve its color, aroma and taste. In addition to the need for puncture resistance, there are many other functional requirements. Such as salt baked chicken legs, salt baked chicken wings, they will have oil, aromatic molecules, plastic bags are necessary to have oil resistance and fragrance.