Aluminum foil for use container

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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 is the use of the aluminum tape?
Taking aluminum foil as the base material and then coated with acrylic adhesive, aluminum tape is featured by high peel strength, excellent adhesion and oxidation resistance, corrosion resistance and flame resistance. Aluminum foil can be classified as common aluminum tape, conductive aluminum tape, high peel strength aluminum tape, reinforced aluminum tape, clip marine welding aluminum tape, aluminum tape for heater, etc., so the effects are different. For example, the commonly used aluminum tape is mainly used for binding cold (hot) gas pipeline in cold (warm) gas engineering and water heater manufacturing. Conductive aluminum tape is commonly used for eliminating electromagnetic interference (EMI), isolating electromagnetic wave to human body and avoiding unnecessary voltage or current that may influence its function in all kinds of transformers, mobile phone, computer, PDA, PDP, LCD displays, notebook computers, copiers and other electronic products in which electromagnetic shielding is required. Conductive aluminum foil has several types, like double-sided conductive aluminum foil and single-sided conductive aluminum foil. . . Go to tape related websites for more details.
Q:Does the aluminum foil can prevent from the sunlight shining?
Aluminum foil can prevent the sun shining. It can reflect the sunlight.
Q:What's the highest temperature resistance of the aluminum foil ?
Yes.
Q:The thickness of aluminum foil bag is 30 silks. Is it thick or thin?
It's very thick. What's more, 30 silks should be the thickness of two sides with each side shares 15 silks.
Q:How to classify aluminum foil according to shape?
1. Hard foil: After rolling without softening treatment (annealing) of aluminum foil, without degreasing, surface Bu there is a residual Shantou. So hard foil printing, laminating, coating must be degreased before, if used for forming can be used directly.
Q:Aluminum foil paper and tin foil paper
The difference between aluminum foil and tin foil, which are mainly used to wrap cigarette, is their thickness and control of high temperature resistance! “Tin foil” and “aluminum foil” are produced respectively by metal tin and aluminum through calendaring. Aluminum foil paper mainly use offset printing, for example, the disposable meal box on the plane which is made from aluminum foil and can be heated in micro-oven, some fried food and aluminum foil for hairdressing like so called tin foil perm. Besides, aluminum foil is applicable to many fields like packaging, printing, medicine, electronic, food, and building.
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:Aluminum-foil paper glues on the radiant-cooker after melting. How to remove it without hurting the radiant-cooker?
Heat it and than tear it down.
Q:What causes the velocity effect of the aluminum foil?
3, the material is softened deformation of the rolling process. High-speed aluminum foil rolling mill speed, with increasing rolling speed, rolling temperature deformation zone opened higher, according to calculate the temperature of the metal deformation zone can rise to 200 ℃, it is equivalent to a middle of the recovery annealing, thereby causing processing the rolled material softening.
Q:How to test the withstand voltage of capacitance?
Simple test:the two aluminium lead wire rolled up like the electrician high-voltage shaking unit(produce high voltage)and voltmeter and capacitance connected in parallel like revolving unit to the measurement and read the voltmeter. The voltage should be higher than withstand voltage. take the advantage of capacitance aluminium of restoring and measurement.

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