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What the difference between aluminium block bottom packaging bags and pure aluminum bags?

What the difference between aluminium block bottom packaging bags and pure aluminum bags?
Pure aluminium block bottom bags and aluminized bag difference.

Aluminized block bottom bag it is under high temperature and vacuum, the high purity aluminum evenly on the plastic film. Because it is painted on the plastic, metal aluminum is mainly a decoration effect, for progress information barrier property is not of much help.

Aluminized block bottom bag it’s pure aluminum tablet, the thinnest thickness can reach 0.0065 MM, if at this time quietly one tong will be broken by hand, although the thin look is so weak, but put it with other plastics compound, its effect is very big. After with more than one layer of plastic composite, will be able to progress the barrier property of plastic, sealing, protecting incense, shielding, etc. Function.

1, watch: due to the brightness than aluminum plating bright aluminum foil, so reflective good sex less than aluminum plating film aluminum foil, aluminum plating stereo bag can according to the figure, but extinction film aluminum plating.Extinction film plating aluminum and aluminum foil very approximate appearance.Can the bag mouth, through the light to see inside the bag, aluminum foil bag inside not pervious to light, pervious to light is aluminized block bottom bags.

2, feel is: aluminum foil bags of grip and crisp block bottom hard, heavy, feel of aluminized block bottom bag than aluminum foil bag is light and soft.

3, folding: aluminum foil bag made one simple folding dead plait mark, aluminized block bottom fold die seal bag not folding into death, and will rebound soon.

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