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Aluminium Foil Jumbo Roll In Meters
Aluminum is used for packaging because of its high degree of ductility: it can be easily converted into a sheet and folded, rolled or packaged. Aluminum foil can completely block light and oxygen (causing fat oxidation or decay), smell and taste, moisture and bacteria, so it is widely used in food and pharmaceutical packaging, including long-life packaging (aseptic packaging) products for beverages and dairy products, without refrigeration Can be stored. Aluminum foil containers and trays are used for baking pies and packaging takeaway foods, quick snacks, and pet foods with a long shelf life.
Aluminum foil is widely sold to the consumer market, usually in the form of rolls 500 mm (20 inches) wide and several meters long. It is used to package food to preserve food, such as storing leftover food in the refrigerator (the other purpose is to prevent odor exchange), carrying sandwiches during the journey, baking or selling some takeaway or fast food. For example, Tex-Mex restaurants in the United States usually offer take-out burritos wrapped in aluminum foil.
Aluminum foil is widely used for radiation shielding (blocking and reflection), heat exchangers (heat conduction) and cable lining (blocking and conduction). The thermal conductivity of aluminum foil makes it a common accessory for hookah smoking: perforated aluminum foil is usually placed between coal and tobacco
Although aluminum is non-magnetic, it is a good conductor, so even a thin sheet can reflect almost all incident electric waves. At frequencies above 100 MHz, the transmitted electric field attenuation exceeds 80 decibels (dB) but the actual energy absorption is very small: the remaining high-frequency RF energy is almost perfectly reflected from the uniform and flat aluminum surface, so the reflected signal can continue to propagate internally If there are holes or channels of appropriate geometry in the shield, the signal can continue to propagate through these holes or channels. Aluminum is a good material for realizing microwave frequency waveguide.
1235 Cigarette Pack Alu Foil Roll 6 Micron Anti-counterfeiting aluminum foil composite paper for cigarette inner packaging can be used for inner packaging of various cigarettes
