Fóliové vrecká nie sú toxické. Vnútro izolačného vrecka z hliníkovej fólie je mäkký izolačný materiál, ako je pena, ktorý spĺňa predpisy o bezpečnosti potravín. Hliníková fólia má vynikajúce bariérové vlastnosti, dobrá odolnosť proti vlhkosti, a tepelná izolácia. Aj keď sa teplo dostane cez vnútornú vrstvu hliníkovej fólie do strednej vrstvy PE airbagu, V strednej vrstve sa vytvorí konvekcia tepla, and it is not easy to penetrate the outer aluminum foil layer, so as to achieve a good heat insulation effect.
What material is the gold on the outside of the aluminum foil lunch box?
oxide layer.
Aluminum foil is a hot stamping material that is directly rolled into thin sheets from metal aluminum.
Due to its excellent properties, aluminum foil is widely used in food, nápoje, cigarettes, liečiv, photographic film, household items, atď. Usually used as packaging materials, electrolytic capacitor materials, and heat insulation materials for buildings, vehicles, ships, houses, atď. It can also be used as decorative gold and silver thread, wallpaper, various stationery prints, and decorative trademarks of light industrial products.
In a variety of applications, the most effective performance of aluminum foil is as a packaging material.
