air conditioning foil

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Aluminium foil acts as a total barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moistness, and germs, it is used broadly in food and pharmaceutical packaging. The purpose of aluminium is to make long-life packs (aseptic processing|aseptic packaging) for drinks and dairy goods, which allows storing without refrigeration. Aluminium foil containers and trays are used to bake pies and to pack takeaway meals, ready snacks and long life pet foods.

Aluminium foil is widely sold into the consumer market, often in rolls of 500 mm (20 in) width and several metres in length.It is used for wrapping food in order to preserve it, for example, when storing leftover food in a refrigerator (where it serves the additional purpose of preventing odour exchange), when taking sandwiches on a journey, or when selling some kinds of take-away or fast food. Tex-Mex restaurants in the United States, for example, typically provide take-away burritos wrapped in aluminium foil.

Aluminium foils thicker than 25 µm (1 mil) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process.

Aluminium foil has a shiny side and a matte side. The shiny side is produced when the aluminium is rolled during the final pass. It is difficult to produce rollers with a gap fine enough to cope with the foil gauge, therefore, for the final pass, two sheets are rolled at the same time, doubling the thickness of the gauge at entry to the rollers. When the sheets are later separated, the inside surface is dull, and the outside surface is shiny. This difference in the finish has led to the perception that favouring a side has an effect when cooking. While many believe that the different properties keep heat out when wrapped with the shiny finish facing out, and keep heat in with the shiny finish facing inwards, the actual difference is imperceptible without instrumentation.The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%.


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Q:How to calculate the weight and length if knowing the width of single layer of aluminum foil,density, diameter of outside roll and diameter of inner roll?
You can calculate the volume by the external diameter, inner diameter and width. the weight can be known by the density and volume, then the weight and length canbe known too.
Q:Is tin foil paper the same as aluminum foil paper?
Tin foil paper is a kind of film-shaped metal paper stuck with silver: Metal paper for packing cigarette is often silver-white. Aluminum foil paper is made by sticking aluminum foil backing paper with aluminum foil pasting paper to serve as moisture-proof and decorating packaging material for good cigarette and candies. There isn’t much difference between tin foil paper and aluminum foil paper, both of which can be used to cook and pack food.
Q:How can aluminum foil classification?
Second, according to the shape Aluminum foil can be divided according to the shape of a roll of aluminum foil and a sheet of aluminum foil. Aluminum foil deep processing wool was rolled supply most, only a few handicraft packaging occasions with a sheet of aluminum foil.
Q:Aluminum corrosion resistance is mainly reflected in what areas?
Third heat-resistant properties, that at a certain temperature, a certain humidity place a long time corrosion sex. The performance is also an important indicator to measure the heat transfer sheet weathering capabilities.
Q:Aluminum foil and fold thickness difference is caused by what?
A roll of aluminum foil rolling up to tens of meters, rolling up to about 10h, with time, the difference between thick, very easy to form, and the means for adjusting the thickness of only tension speed. These factors have caused difficulties controlling the thickness of aluminum foil rolling, so the real difference in thickness control less than 3%, a number of conditions need to ensure, rather difficult.
Q:What is carbon coated aluminum foil?
In fact, we see the "nano" word, no doubt to be sure, coated carbon foil is an advanced breakthrough technology innovation, so easier to save battery power, power loss is smaller, significantly improving the overall performance of the battery .
Q:What's the material of aluminum foil roller
The aluminum foil roller is the interior document. The roller plant and rolling mill take the advantages of the pressure of temperature change.
Q:Is the aluminium air duct poisonous?
There is no rubber and plasticization. The aluminium paper is poisonousless even burned in the high temperature environment. And it can be used as the package of food.
Q:Are aluminum foil container poisonous?
Light weight aluminum foil products, the products meet the national food hygiene standards. And recycling convenient, no 'harmful substances in the process, and does not pollute renewable resources. Aluminum lunch boxes for aviation product line more food and retail food cake, update speed consume larger quantities. For a bulk sale. Cake cooking food store and finished food packaging are multiple use foil container. Market wide, wide popularization.
Q:What's the shiny alluminum foil?
Rubber resin ink industry generally adopts two kinds of rubber resin, namely, chlorinated rubber and thermopren. Natural rubber can be considered as shiny alluminum foil. Unmodified epoxy resin can be used as a light cover and aluminum foil coating.The epoxy resin can react with amine or reactive polyamide,organic acid,carbimide,phenol,aldehyde, melamine and formaldehyde resin to generate a soft film.

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