foil airconditional

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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:Is it aluminum good or PVC plastic good for the refrigerator inner container?
The aluminum is good because it can preserve the temperature!
Q:What equipments are needed to produce aluminum foil bag?
It depends on whether you directly use composite aluminum foil film or raw materials that aren't well composited. If you directly use composite aluminum foil film, you may need dividing and cutting machine and bag machine. If you use raw material,you may need printing press, compound machine,dividing and cutting machine and bag machine.
Q:Is tin foil paper the same as aluminum foil paper?
The original tin foil paper is indeed made from tin, but as tin foil paper is harder than aluminum foil and easy to affect the food with a taste of tin, aluminum foil paper replaces tin foil paper in daily life after the reduction of aluminum price. However, as aluminum can affect the development of brain, aluminum foil at present is coated to avoid the liberation of aluminum.
Q:What is the difference between the tin foil and aluminum foil?
Metal tin foil rolling production, aluminum foil is rolled production. Aluminum foil can not be rolled out in the past so thin, and when aluminum prices are not cheap, long-term champion in foil and now the rise of the aluminum foil, foil relatively cheap price, most of the aluminum foil packaging has been generally used in food packaging composite film is a combination of a printed layer, a barrier layer of aluminum, heat-sealing layer up.
Q:How to use the bright surface and non-bright surface when having a barbeque.
The non-bright surface is used for putting the food,and the bright surface can reflect the light.The bright surface can fasten the speed of food cooking and save the energy. 
Q:What's the difference between PET gold card paper and aluminum foil gold card paper film?
Aluminum foil gold card paper is used in base materail(paperboard) 1:It is easy to compare the appearance when you know the making process. Aluminum foil is made by pressing vaporized aluminum into slice and then print or thermoprint. Stick to PET thin film and shake it under ray of light. You will find that it is highly reflective. 2: Burning test: PET belongs to transparent plastic. PET gold card paper and aluminum foil have different appearence and making process. 3.PET gold card paper is printed on base materail(paperboard) previously,however, some printing layer don't have good reflective performance. PET thin film is very bright. When aluminum foil gold card paper burn to a cinder, the remained metal aluminum foil is thermoprinted. PET gold card paper can be burned into cinder totally. Aluminum foil is with metallic lustre.
Q:What are the advantages and disadvantages of aluminum foil packaging?
Excellent barrier properties , moisture-proof, airtight, Paul Hong, the contents of the package to prevent moisture absorption, oxidation and volatilization deterioration of its moisture barrier, oxygen barrier properties. Easy processing of aluminum foil, plastic film and paper can be complexed with.
Q:What are the characteristics of color coated aluminum coil?
4. Mechanical: High quality aluminum, plastics and adhesives, the use of advanced composite technology. Products with the desired decorative plate bending, bending strength at the four seasons climate state, change air pressure, temperature, humidity and other factors, will not cause bending, deformation, expansion or the like.
Q:mesohigh electronic aluminium foil
Q:Are high-temperature aluminum foil?
Are high temperature aluminum foil, aluminum foil, also known as aluminum foil, tin foil in Hong Kong was also called, is the thickness of the processed sheet with aluminum foil rolling mill in a 0.2mm or less, mainly used in the kitchen cooking, food use or it can be used to make some simple cleaning materials. Thousands of tons of aluminum foil around the world as a protective and packaging of food, cosmetics and chemicals.

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