Today we will talk about the classification and characteristics of the main forest material of food vacuum bags.
Several types of composite materials for vacuum bags are generally:
PA/PE or PA/RCPP PET/PE or PET/RCPP
also has three or four layers, in order to increase the material texture performance:
PET/PA/PE PET/AL/RCPP PA/AL/RCPP PET/PA/AL/RCPP
The classification of materials for vacuum packaging, the following are the characteristics of each material suitable for vacuum packaging:
One. Among them, PE is suitable for low temperature use, and RCPP is suitable for high temperature cooking;
2. PA is to increase physical strength and puncture resistance;
Three, AL aluminum foil is to increase the barrier performance and shading;
Fourth, PET, increase mechanical strength, excellent stiffness.
Then according to the needs, combination, various properties, there are also transparent, in order to increase the barrier performance, use the water-resistant PVA high barrier coating.
Several common vacuum packaging bags
High-temperature cooking bags, vacuum bags are used to pack all kinds of meat cooked food, easy to use and hygienic.
Material: NY/PE, NY/AL/RCPP, NY/PE Characteristics: moisture-proof, temperature-resistant, shading, fragrance retention, toughness
Applicable: high-temperature sterilized food, ham, curry, grilled eel, grilled fish and meat stewed products.
At present, the most used vacuum packaging is mainly film materials, of course, bottles and cans are also used. For the film materials used in food vacuum packaging, it is necessary to ensure that the packaging effect, aesthetics, and economy of various foods are in the best state. At the same time, food vacuum packaging also has higher requirements for the light barrier and stability of the material. When a single material cannot meet these requirements, the packaging will often be composed of a variety of different materials.