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The cause of the vacuum packaging vacuum loss

by:Kolysen     2020-12-18
The cause of the vacuum packaging vacuum loss concrete has four kinds: 1, barrier property of materials. OPP/PE, for example, the structure of the packing, the vacuum degree of vacuum after 2 weeks will decrease, so the vacuum packing material must have a certain gas barrier property. 2, sealing air tightness. If in the presence of tiny of the sealing side is not completely closed crack, the air will cause a loss of vacuum degree through the crack into the bag. For example to pillow packing in horizontal inside front cover layer and the four joint or sealing inner layer material contents contamination ( Such as oil, powder, etc. ) Or seal on the edge of the ruffle, etc can cause the phenomenon of poor sealing. 3, mechanical damage. 一个。 Is built-in puncture, such as vacuum packaging, Fried peanut bone with sharp edges of the object; b。 Foreign object damage, such as being adjacent edges of the packaging bags to Pierce, crystal point on the material destroyed the barrier layer materials, sealing knife mold edge burr damaged packaging materials, etc. ; c。 Flexural resistance of materials is poor, in the packaging in circulation barrier property greatly reduced. 4, another may be due to the content of fermentation, Anaerobic respiration) A gas, causing lower vacuum. Of course this bag to change other items can be vacuum to confirm. More knowledge, please contact our customer service
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