ʻAʻole ʻona nā ʻeke pepa. ʻO ka ʻaoʻao o loko o ka ʻeke hoʻoheheʻe alumini alumini he mea hoʻoheheʻe palupalu e like me ka pahu, i kū i nā kānāwai palekana meaʻai. Loaʻa i ka pahu alumini nā mea pale maikaʻi, maikaʻi ke kū'ē i ka wai, a me ka wela wela. ʻOiai inā hiki ka wela i ka papa airbag PE waena ma o ka papa alumini alumini i loko, e hoʻokumu ʻia ka convection wela ma ka papa waena, 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, mea inu, cigarettes, lāʻau lapaʻau, photographic film, household items, etc. Usually used as packaging materials, electrolytic capacitor materials, and heat insulation materials for buildings, vehicles, ships, houses, etc. 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.