Folaj sakoj ne estas toksaj. La interno de la aluminia izola sako estas mola izola materialo kiel ŝaŭmo, kiu konformas al la nutraĵsekurecaj reguloj. Aluminia folio havas bonegajn barajn ecojn, bona rezisto al humideco, kaj termika izolado. Eĉ se la varmo atingas la mezan PE-aersakan tavolon tra la interna aluminia folio, varmokonvekcio formiĝos en la meza tavolo, 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, trinkaĵoj, cigarettes, farmaciaĵoj, photographic film, household items, ktp. Usually used as packaging materials, electrolytic capacitor materials, and heat insulation materials for buildings, vehicles, ships, houses, ktp. 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.
