Material and material combination of vacuum packaging bag
January 20, 2023
The material properties of vacuum packaging bags directly affect the storage life of food and its taste. Therefore, when choosing packaging, not only the product to be packaged but also the material of the packaging should be paid attention to. The vacuum packaging bag has more than one material, and different materials have different properties. The material classification of the vacuum packaging bag is as follows:1,PEmaterial, generalPEThe material is suitable for use in a low-temperature environment, so it is suitable for some fresh-keeping products such as seafood.2,RCPPThe material is suitable for steaming and cooking in a high temperature environment. 3,PAMaterial, generally in the vacuum packaging bag will be addedAPMaterial, the main purpose is to increase physical strength and puncture resistance. 4,ALAluminum foil, this material is mainly to increase the barrier performance and light shading, and it is also contained in general vacuum packaging bags. 5, water resistantPVA, this material is to increase the barrier performance and form a high barrier coating. 6,PETThe material has excellent physical and mechanical properties, creep resistance, fatigue resistance, friction resistance, and is not easy to deform.However, according to the needs of use, our vacuum packaging bags are combined with these materials, and the combinations are also as follows: 1,PA+PEandPA+RCPP, Low temperature piercing resistance and high temperature piercing resistance. 2,PET+PEandPET+RCPP, Resistance to low temperature friction and high temperature friction.There are also two or more materials3,PET+PA+PE 4,PA+AL+RCPP 5,PET+PA+AL+RCPP 6,PET+PA+PECombining according to the needs of use can better improve the performance of vacuum packaging bags.
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