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At present, the most used vacuum packaging for snacks is mainly film materials, and of course, bottles and cans are also used. For the film materials used in food vacuum packaging, it is necessary to ensure that it achieves the best state in terms of packaging effect, beauty and economy of various foods.
The classification of vacuum packaging materials, the following is suitable for food vacuum packaging of the material characteristics:
First, PE is suitable for low temperature, RCPP is suitable for high temperature cooking;
Second, PA is to increase physical strength, puncture resistance;
Third, AL aluminum foil is to increase the barrier performance, shading;
Four, PET, increase mechanical strength, excellent stiffness.
Then according to the demand, the combination of various properties, there are also transparent, in order to increase the barrier performance of the use of water resistant PVA high barrier coating.
Vacuum bag several composite types:
Generally:
PA/PE or PA/RCPP PET/PE or PET/RCPP
There are also three layers and four layers, in order to increase the texture and performance of the material:
PET/PA/PE PET/AL/RCPP PA/AL/RCPP PET/PA/ AL/RCPP
Several common vacuum bag characteristics
High temperature cooking bag, vacuum bag for packaging a variety of meat cooked food, easy to use, health.
