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Points for Attention in the Use of Packaging Bags

Date of release:2019-07-08 Author:瑞茂 Click:

 

Don't let sharp objects scratch. The sticks are on the bed or on the clean table. If there are buttons, zippers and other hard objects in the storage, fold them in and put them in the storage bag. Clothes, quilts and other items should be placed in the bag as far as possible, at least 3-5 cm away from the zipper seal. Large items should not be forced into the bag. To ensure the hygiene of the sealing zipper part, if fibers and dust enter, the sealing function will be reduced. It is advocated that the zipper be cleaned by soaking gauze and then closed.

When using the suction pump, screw the spiral joint of the pump, and pay attention to the bag before and after inflating. Packaging bags manufacturer to resist the red rubber gasket of the exhaust port, to ensure that there is no air leakage at the interface. Usually a large bag needs to exhaust 3 to 5 minutes. It takes about 300 or 500 times to have a significant flattening appearance. After pumping, please check the seal again to ensure the sealing.

包装袋

The main function of food vacuum packaging bag is deoxygenation, which is beneficial to prevent food deterioration. Its principle is relatively simple. Because food mould deterioration is mainly caused by the activities of microorganisms, and the survival of most microorganisms (such as molds and yeasts) needs oxygen. Vacuum packaging is to use this principle to put the packaging bag in and out. Oxygen is extracted from food cells and microorganisms lose their living environment.

Experiments show that when the oxygen concentration in the packaging bag is less than 1%, the growth and reproduction speed of microorganisms will decrease sharply. When the oxygen concentration is less than 0.5%, most microorganisms will be inhibited and stop reproduction.

In addition to inhibiting the growth and reproduction of microorganisms, the other important function of vacuum deoxygenation is to prevent food oxidation, which is caused by the oxidation of unsaturated fatty acids in oils and fats, causing food to taste and deteriorate. In addition, oxidation also causes the loss of vitamin A and C, and the production of unstable substances in food pigments by oxygen. Use to darken the color. Therefore, deoxygenation can effectively prevent food deterioration.


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Key word:包装袋,包装膜,复合膜

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