Aluminum foil for use lidding

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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%.

We provide a full range of precision aluminum strip for almost any application. We produce aluminum strip in a wide variety of alloys, including clad composites. Our aluminum strip can be produced in standard dimensions or custom made to your special requirements. We produce both imperial and metric units. We manufacture in compliance with the main international specifications, and tighter tolerances or custom tempers are available upon request. We offer various surface conditions, custom finishes (painting, anodizing, embossing), special processing, and multiple packaging options to meet our customer's unique requirements. The following is a summary of our capabilities.

Manufactured in compliance with the main international specifications and standards, including:  Aluminum Association, ASTM, EN, and DIN.
We can also manufacture in compliance with other international standards including:ASME, SAE, AMS, AWS, FED, MIL, QQ, ISO, BS, AFNOR, JIS and GOST.

Manufactured in compliance with the main international specifications and standards.
Tighter tolerances are available upon request.


Aluminium (or aluminum; see spelling differences) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery white, soft, ductile metal. Aluminium is the third most abundant element (after oxygen and silicon), and the most abundant metal in the Earth's crust. It makes up about 8% by weight of the Earth's solid surface. Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals.The chief ore of aluminium is bauxite.

Aluminium is remarkable for the metal's low density and for its ability to resist corrosion due to the phenomenon of passivation. Structural components made from aluminium and its alloys are vital to the aerospace industry and are important in other areas of transportation and structural materials. The most useful compounds of aluminium, at least on a weight basis, are the oxides and sulfates.

Despite its prevalence in the environment, no known form of life uses aluminium salts metabolically. In keeping with its pervasiveness, aluminium is well tolerated by plants and animals. Owing to their prevalence, potential beneficial (or otherwise) biological roles of aluminium compounds are of continuing interest.

The earliest citation given in the Oxford English Dictionary for any word used as a name for this element is alumium, which British chemist and inventor Humphry Davy employed in 1808 for the metal he was trying to isolate electrolytically from the mineral alumina. The citation is from the journal Philosophical Transactions of the Royal Society of London: "Had I been so fortunate as to have obtained more certain evidences on this subject, and to have procured the metallic substances I was in search of, I should have proposed for them the names of silicium, alumium, zirconium, and glucium."

Davy settled on aluminum by the time he published his 1812 book Chemical Philosophy: "This substance appears to contain a peculiar metal, but as yet Aluminum has not been obtained in a perfectly free state, though alloys of it with other metalline substances have been procured sufficiently distinct to indicate the probable nature of alumina."[69] But the same year, an anonymous contributor to the Quarterly Review, a British political-literary journal, in a review of Davy's book, objected to aluminum and proposed the name aluminium, "for so we shall take the liberty of writing the word, in preference to aluminum, which has a less classical sound."

The -ium suffix conformed to the precedent set in other newly discovered elements of the time: potassium, sodium, magnesium, calcium, and strontium (all of which Davy isolated himself). Nevertheless, -um spellings for elements were not unknown at the time, as for example platinum, known to Europeans since the 16th century, molybdenum, discovered in 1778, and tantalum, discovered in 1802. The -um suffix is consistent with the universal spelling alumina for the oxide (as opposed to aluminia), as lanthana is the oxide of lanthanum, and magnesia, ceria, and thoria are the oxides of magnesium, cerium, and thorium respectively.

The aluminum spelling is used in the Webster's Dictionary of 1828. In his advertising handbill for his new electrolytic method of producing the metal in 1892, Charles Martin Hall used the -um spelling, despite his constant use of the -ium spelling in all the patents[58] he filed between 1886 and 1903. It has consequently been suggested[by whom?] that the spelling reflects an easier-to-pronounce word with one fewer syllable, or that the spelling on the flyer was a mistake.[citation needed] Hall's domination of production of the metal ensured that aluminum became the standard English spelling in North America.


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Q:What’s the use of aluminum foil glass wool felt ?
Product application: Aluminum foil glass cotton can be used on mechanical equipment, generator room, combination unit of the generator, the automobile engine cover, sewer line and ventilating duct to reduce the noise. Aluminum foil glass cotton felt can be applied to all kinds of equipment to reduce shock and pressure.
Q:Is aluminum foil insulation materials easy aging?
The use of aluminum and high surface reflection characteristics of multilayer aluminum surface reflection can be achieved completely block heat radiation purpose. But through the aluminum surface between the air and the like are still A small amount of convective heat transfer. If you require complete insulation, available multilayer vacuum aluminum reflective insulation structure.
Q:The applications of aluminum foil
Scrap aluminum foil can be used to make poly aluminum chloride which is a common kind of inorganic polymer flocculants. The broad sources of raw material for manufacturing poly aluminum chloride lay the foundation for its development, especially the diversity of production processes which provides convenience for the development of poly aluminum chloride. International and domestic manufacture and application has scaled up and theory research has gained further development. Manufacturing material mainly include bauxite, aluminum hydroxide and waste molecular sieve catalyst. Manufacturing methods mainly contain wet process and electrolytic process. As some scholars think scrap aluminum foil has high economic value for recycling, they research the best conditions to produce poly aluminum chloride with scrap aluminum foil and the range of application for purifying water via experiments. With the development of industry and the rapid growth of urban population, water pollution is increasingly serious, which lead to more sewage to purify and more purifier to meet the increasing demand. As poly aluminum chloride molecule has different quantities of hydroxyl, it will hydrolyze under the PH condition of the source water and be accompanied with a series of physical and chemical process like coagulation, absorption and deposit after adding poly aluminum chloride to the turbid source water to purify the water. There is a wide source for scrap aluminum foil mainly from the package of cigarette, food and medicine, whose main component is aluminum, so it has high economic and social value to recycle scrap aluminum foil. The best conditions to produce poly aluminum chloride with scrap aluminum foil and the range of application for purifying water have practical significance for the increase of resource utilization rate and environment protection after test and research.
Q:The advantages and disadvantages of waterproof aluminum film and aluminum foil
There are no EPE in aluminium film, so that it can not preserve the heat.The aluminum in the aluminum foil is thin so that its waterproof is weak.
Q:Does the aluminium tin foil poisionous?
The tin foil bag is used in the barbeque. The poisionous tin foil or the aluminium foil bag are used in the barbeque to wrap the food and the sauce is forbidden to add. The experts said that the sour sauce may have an reaction with the aluminium tin foil paper to produce the aluminium and tin in the food. the minor symptom can be acute gastroenteritis, the severe symptom can cuase the brain hurt and alzheimer disease. while the most of present coverge material in the barbeque selling on the market is aluminium tin foil paper.
Q:Why use aluminum foil packaging of cigarettes?
Foreign manufacturers in the development of new cigarettes, Backing aspect is a lot of work, BAT also use vacuum aluminum as its brand-name cigarette packet lined packaging material, according to statistics, at present, 70% of British cigarettes, 50 % of German cigarettes are cigarettes made with aluminum inner liner. Armenian producers in order to increase protection of the product, the use of duplex printing and foil baking sheet liner, an Indonesian company has introduce a metallised material to replace the original multi-layer composite aluminum foil paper, aluminum foil, its thickness is only 0.04 m.
Q:Which sides do we use when conducting the electricity.
Aluminum foil is a kind of metal paper with silver white package. it is called tin paper in Hongkong and it is a kind of pressed metal aluminum.It can be used in kitchen for cooking and the simple material.
Q:Aluminum foil tape or copper foil tape, which is better at shielding?
I should say they have equal shielding abilities. But as aluminum is more likely to oxidize than copper and not easy to be soldered, copper foil tape is preferred in most of the cases. Electromagnetic shield means using elements made of conductive or ferromagnetic materials to screen at the end of stator core of a large turbo-generator, reducing additional loss and local heating in parts caused by flux leakage at the end of stator winding. In terms of communication, screening is to segregate two spaces to prevent electric field, magnetic field, and electromagnetic wave of one area from reacting to or radiating the other one. To be detailed, screening will encompass interference source that influences components, circuit, assembling, cable or the overall system.
Q:What are the advantages of aluminum foil boxes?
Aluminum foil, with outstanding barrier properties, under the premise of a sufficient thickness of aluminum foil, substantially completely gas and moisture barrier, thus, in plastic flexible packaging materials, aluminum foil is commonly used as barrier material and a lightweight aluminum, and sealed package Overturn good range of benefits. Mainly health, beauty, but also holding on to some extent.
Q:How aluminum foil is uesd in pharmaceutical packaging?
Aluminum foil in the application there is a potential market for the pharmaceutical industry, namely pharmaceutical aseptic packaging. At present, only individual enterprises producing such aseptic packaging herbal tea health drink, yet the development of aseptic packaging a liquid medicine. This new the field will be an important potential market for aluminum foil flexible packaging.

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