Folijas maisiņi nav toksiski. Alumīnija folijas izolācijas maisiņa iekšpuse ir mīksts izolācijas materiāls, piemēram, putas, kas atbilst pārtikas nekaitīguma noteikumiem. Alumīnija folijai ir lieliskas barjeras īpašības, laba mitruma izturība, un siltumizolācija. Pat ja siltums caur iekšējo alumīnija folijas slāni sasniedz vidējo PE gaisa spilvena slāni, vidējā slānī veidosies siltuma konvekcija, 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, dzērieni, cigarettes, farmaceitiskie preparāti, photographic film, household items, utt. Usually used as packaging materials, electrolytic capacitor materials, and heat insulation materials for buildings, transportlīdzekļi, kuģi, mājas, utt. It can also be used as decorative gold and silver thread, tapetes, 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.
