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What is vacuum bag?

What is vacuum bag?


Vacuum bag, also known as decompression packaging, is to take out all the air in the packaging container and seal it to maintain the bag in a high decompression state. The scarcity of air is equivalent to the effect of low oxygen, so that microorganisms have no living conditions, so as to achieve the purpose of keeping fruit fresh and free from disease and rot.Vacuum packaging types include plastic bag vacuum packaging, aluminum foil packaging, glassware packaging and so on.Packing materials can be selected according to the type of articles.Because the fruit is a fresh food, is still in the respiratory effect, high hypoxia will cause physiological diseases, therefore, the use of vacuum packaging fruit less.

The performance of food vacuum packaging material directly affects the storage life of food and the change of taste.In the vacuum packaging, the choice of good packaging materials is the key to the success of packaging.

Since speaking of the material of vacuum packaging, it is essential to the classification of material. The following are the characteristics of various materials suitable for vacuum packaging:

PE is suitable for low temperature use, RCPP is suitable for high temperature cooking;

PA is to increase the physical strength and puncture resistance;

Al aluminum foil is to increase the blocking performance, shading;

PET, increase mechanical strength, excellent rigidity.

Then according to the demand, combination, a variety of performance,there are also transparent ones that are designed to increase the barrier properties using a water-resistant PVA high barrier coating.

Vacuum packaging bag has the characteristics of low permeability (oxygen) gas rate, good vacuum effect, high transparency, good moisture resistance, tensile strength and puncture strength, easy heat sealing, good sealing, not easy aging and so on. It is very suitable for food anticorrosive, anti-change packaging, and its advantages mainly include the following points:

1, non-toxic and tasteless, in line with the health standards of food and drug packaging

2, good transparency, flexibility, good sealing, oil resistance, good aroma retention performance.

3. Strong air barrier performance, anti-oxidation, waterproof and moisture-proof.

4, good heat sealing performance, softness, high transparency.


kolysen have vacuum bags in stock available for sale, also can accept custom printing design, if necessary, please feel free to contact us.

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