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 are good brands of aluminum tape?
There are many brands of aluminum tape. The features vary with manufacturers. We cannot say which is best, but say which is better.
Q:How about rubber & plastic aluminum foil thermal insulation board?
1. With closed-cell structure preventing moisture outside, rubber and plastic aluminum foil insulation board has excellent moisture resistance (μ≥5,000) which serves as a built-in moisture-proof layer, thus an additional moisture-proof layer is not needed. Since the moisture resistance (μ≥5,000) is more than 3500 (ISO9346), the board itself serves as a built-in moisture-proof layer. So damage on products will not influence its overall moisture-proofness. Rubber & plastic serves as insulating layer and moisture-proof layer. 2. The thickness of rubber and plastic material is one third of any other thermal insulated materials. Therefore, it can save space above the ceiling and lift room height. 3. Characterized by excellent resistance to weather, aging, low/high temperature, dryness, moisture, ultraviolet radiation and ozone, rubber & plastic material will not be out of shape and need no maintenance. 4. With high elasticity, smooth surface, softness, rubber & plastic material can be intact, beautiful and slap-up without ceiling even if installed on irregular components such as bent pipes, tee-junctions or valves.
Q:What's the application of double-sided conductive aluminum tape?
1. Aluminum tape is rolled tape by compounding anti-sticking paper and quality aluminum foil which is coated with acrylic adhesive, thus featured by strong adhesion high temperature resistance and aging resistance. It is used for fixing evaporating pipes of refrigeration equipment such as air conditioner, freezer, etc. 2. By padding a layer of glass wool, it is used for thermal insulation of automobile. Generally speaking, it is the less reflective material used in air-conditioning refrigerator.
Q:What's the result after mistakenly eating the aluminium package when taking the pill?
If you have the digestive tract symptom like abdominal distention,I suggest you should go to hospital to have a check to see.Watch the excrement if you have no symptoms after mistakenly eating the aluminium package. If you have abdominal pain……
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.
Q:What will happen when aluminum foil mirror is folded in half?
When aluminum foil mirror is folded in half, you face will be reflected with two images on each one. It is called reflection, also applying to other objects. The number of faces you will see depends on how many times you fold the mirror. When it is broken, then the image of your face also turn into pieces.
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:What's the difference between aluminum foil paper and tin foil paper?
Tin foil is thinner than aluminum foil. Tin foil is non-toxic, but long-term use may influence the intelligence quotient of children.
Q:Is aluminium foil ultraviolet-proof?
Yes, but this property is not very good. When aluminium foil is fixed with plastic and paper, its ultraviolet-proof property will improve greatly.
Q:what's the dying temperature of aluminum-foil paper?
It depends on walking speed.If faster, 180 degree,otherwise 120 degree.

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