Foliepåsar är inte giftiga. Insidan av aluminiumfolieisoleringspåsen är ett mjukt isoleringsmaterial som skum, som uppfyller livsmedelssäkerhetsbestämmelserna. Aluminiumfolie har utmärkta barriäregenskaper, bra fuktbeständighet, och värmeisolering. Även om värmen når det mellersta PE-airbag-skiktet genom det inre aluminiumfolieskiktet, värmekonvektion kommer att bildas i mellanskiktet, 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, beverages, cigarettes, läkemedel, 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.
