Aluminum foil for package

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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:When baking, what is the difference between aluminum foil and oil on paper?
The role of aluminum foil is heat and fast, even heat, so that the food will not be scorched, can prevent food grilled dirty oil tank at the same time, with aluminum foil wrapped food can be lost by reducing food and nutrition, water loss. So often when things oven with aluminum foil. But remember, the general will add lemon juice to enhance the flavor when baked, but citric acid will react with these metals, carcinogenic at high temperatures. So, you can add lemon juice after baking to eat.
Q:Why the aluminum foil should have anneal craft
The metal hardness processing is making the hardness higher and the ductility worse. it needs to revert to the anneal to press the aluminum.The process needs to have anneal several times.
Q:Why it needs to use the diluted alkalito have an reaction with aluminum foil.
Al first has reaction with the alkali and produces aluminium hydroxide.Then aluminium hydroxide has a reaction with four hydroxyl aluminum acid radical{[Al(OH)3]-},which write as (AlO2). Al first have a racction with H2O producing aluminium hydroxide and then have a reaction with alkali.
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:How to produce aluminized paper?
Q:What are the brands of aluminum foil coiled material?
Aluminum foil. Aluminum foil is a thermo printing material is a thermo printing material by calendering aluminum into a plate. Its thermo printing effect is similar to that of silver coil thermo printing, thus it is also called fake silver coil. Because of its softness, malleability and silver gloss, the calendered plate can be processed into a aluminum foil plate by pasting something like sodium silicate on the offset paper and also can be printed. However, since the color of aluminum foil may dark as a result of oxidation or fade due to friction or touching, thus it is not suitable for thermo printing long-preserved book cover. Coil: volumed steel. it can be classified as plate coil and wound coil.
Q:How dose air conditioning aluminum foil work?
Because different conditions in different regions of the use of air conditioning climate, air quality will occur very big change, like many poor areas but also on the ordinary aluminum foil corrosive effect, once the aluminum foil should have not protected, greatly reducing its service life. However, after the aluminum foil coated with a corrosion-resistant protective layer, life of air conditioning has been improved.
Q:What specification does air hose of aluminum foil have?
XPS composite duct is taking stereoplasm B1-level flame retardant poly ethylene foam as insulating layer. Double-sided embossed aluminum foil is a new composite product through one-time processing. The product quality is light, beautiful and suitable for decoration and some requirements on high-grade places. It is convenient for installation and maintenance. It's innocuous and unpoisonous and with high-pressure resistance, dampproof, air proof, low heat conductivity coefficient and long-time heat insulation performance. It can also provide a maximum ceiling height. It has a high space utilization and is an economic product that is encironmental and healithy.
Q:How is the aluminum foil used in the daily life?
4, wine packaging. Many people know the wine, but many people do not know in the end the bottles on which part of the aluminum foil. Ah, yes, bottles aluminum foil on the bottle neck is the package goes in the mouth and wrinkled thin wine closure. Since aluminum has good ductility, tensile properties and easy printing features in recent years with the health standards of beer, wine foil seal gradually widely used in beer, wine and bottlenecks advanced soy sauce bottle sealed packaging.
Q:Does the tin foil paper or aluminum foil paper can protect people from radiation?
tin foil paper has a good gloss finish and heat reflection.because of the protection of tinm foil paper,the cigerate doesn't change with the atimulation of outside world.more importantly, it will not change the smoke influenced by air and humid environment and the tobacco will not be deterioration since the expiration date has been longer.in addition, considering the heat insulation and beautiful design, there is platinum paper in the cigerate box.we may also use tin foil paper when having a barbeque.the paper is wrapped outside,making the food cooking well qiuckly with nice smell and no cold.the grilled lamb in the resturant also wrapped tin foil paper. tin foil paper can conduct the eletricity. it also has the function of heat insulation.in summer, the tin foil paper covers house roof ,which will reflect the 60% sunlight.besides, the space between the tin foil and the roof should have 150~200mm circulated air stratum.

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