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What are the main characteristics of aluminum foil bags?

What are the main characteristics of aluminum foil bags? 1Light in weight, with metallic luster, good light-proof, high reflective ability to heat and light, metallic luster and reflective ability can improve the brightness of printing colors; 2, Good isolation, strong protection, impermeable air and water vapor, prevent moisture absorption and vaporization of the contents, and are not easy to be invaded by bacteria and insects; 3, Good shape stability, not affected by temperature changes; 4, can not bear force, no sealing, there are pinholes and easy wrinkling and other phenomena, so generally not used alone, usually processed into composite materials with paper and plastic film, which overcomes the shortcomings of no sealing and its isolation. And other advantages have also been fully utilized.

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