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The role of vacuum packing bag

Author:vacuum packing bag wholesale    Time:14/11/07    Click:
    Vacuum bags in contemporary people's life is now the indispensable and important role, it is a typical field of vertical and packaging technology, plays an irreplaceable role.

    The main purpose of the vacuum packing bag is the oxygen to prevent food spoilage.In addition to the main function of vacuum packaging vacuum packaging quality of deoxidization function, main and compressive strength, the air resistance, the preservation effect, can more effectively to make food for a long time to keep the original color, aroma, taste, shape, and nutritional value.In addition, there are many food not suitable for using vacuum packaging and vacuum packaging must be used.Like crisp fragile food, nutrition food, easy deformation oil food, have sharp edges or high hardness will puncture food packaging bags, etc.Food after vacuum packaging, packaging bags inside air pressure is greater than the atmospheric pressure outside packing bag, can effectively prevent the crushing of the food compression deformation, does not affect the packaging and printing packaging appearance.Vacuum packed in vacuum and then filling the nitrogen, carbon dioxide, oxygen, single or two or three kinds of gas mixture.The nitrogen is inert gas, filling effect, make the bag to maintain positive pressure, in order to prevent the outside air into the bag, bag of food plays a protective role.The carbon dioxide can dissolve all kinds of fat or water, forming a weak acid carbonate, can inhibit the activity of mold, corruption, bacteria and other microorganisms.The oxygen is inhibit the growth of anaerobic bacteria breeding, keep fruits, vegetables, fresh and color, high concentration of oxygen to keep fresh meat, its bright red.
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