Aluminum foil for blister use

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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 highest temperature resistance of the aluminum foil ?
Aluminum foil is directly pressed by aluminum. Melting point: 660.37, fire point: 550℃. I’m not sure whether it can be installed, but since it is exhaust duct, the temperature may not be too high. It will not be much higher than 100℃ anyway as the boiling point of water is just 100℃.
Q:the features of aluminum-foil bag
The main material structure of aluminum-foil bag: pet/ny/al/pe(the normal package) pet/ny/al/cpp(thermophilic digestion).Waterproof,dampproof,anti-static,anti-electromagnetic interference,high mechanical strength,high thermal sealing property,wide product fraction of coverage,widely used in cosmetics,facial mask,medicinal materials,drugs,solutions,foods,PC boards,IC integrated circuit,CD driver,hard disk,LCD components,welding material,electric products,circuit board,a good sealing perfromance,high barrier degree,low oxygen transmission rate and low moisture permeability,moistureproof,antifouling,anti-radiation and anti corruption,high mechanical property,high blast resistance,good tear resistance, thermostability, low temperature resistance, elegant appearance, match package conditions of food and medicine(vacuum supply)
Q:Is the aluminum foil tape resistant to high temperature?
The aluminum foil tape is resistant to high temperature. It is mainly for binding ducts. Heat-resisting and weather-proof are its basic properties. Aluminum foil usually can resist temperature over 300 and most of the tape can resist temperature about 180. As aluminum foil itself conducts heat, it will speed up the loss of heat. Therefore, before wrapping the aluminum foil, you can put some thermal insulation cotton inside.
Q:What's the meaning of 13*18 4 of aluminum bag
The width should be shorten 1-2CM,the self-styled self-reliance aluminum foil bag should be 13cm*18cm+4cm.the calculation of length should be shorten 2,including the pressing seal.
Q:What causes the pinholes of the aluminum foil?
Aluminum foil rolling process, other factors causing pinholes are many, even catastrophic, thousands of pinholes per square meter is not unusual. Effective filtration rolling oil, roll and replace short-term dust control measures are necessary to reduce the aluminum foil pinhole conditions, and the use of large rolling force, rolling little tension will also help reduce pinholes.
Q:Is aluminium foil insulative?
NO.
Q:What are the types of aluminum tape?
There are two types: specifications (0.05 mm to 0.08 mm) and width (48 mm, 58 mm). Customization for other specifications are available. The length of each volume ranges from 20 to 30. The aluminum foil is single-sided conductive single-sided conductive aluminum foil with the thickness of 10-40! It is also the necessary material for the sales department of thermal insulated material. Aluminum tape is widely used in refrigerator, air conditioning, automobile, petrochemical, bridge, hotels and so on.
Q:Aluminum foil insulation material
Aluminum foil sound insulation cotton. Density: 60 kg/m3 Specification: 3 to 30 mm (thickness) * 1 m (width) * 10 m (length). It can be customized according to customer's requirements. Material: high density pack PE foam. Facing: black, silver, surface smooth and elastic. Application: heat insulation, sound insulation, noise decreasing, shock restrain and shock absorption. Performance: security and environmental protection, flameproof, waterproof, anti-corrosion, good temperature resistance, stable physical property under the temperature of - 80 ~ + 100 degrees, good pressure resistance, good elasticity and long service life, wide usage range, the bending resistance, low thermal conductivity, sound insulation, heat insulation, shock absorption, noise reduction and other excellent properties. It looks neat and beautiful, and not easily to deform or crack. The material is qualitative soft, which feels good. The construction is convenient. Since it has back glue, just toring kraft paper, one can paste it and it has a strong stickness. In the process of construction,it can be cut at random according to your need. Application: It can be widely used in car body and sound insulation, heat insulation, sound absorption, noise reduction in engine room.When using it, paste the sound insulation cotton material to the part that needs the noise reduction. Advantage: produced by professional manufacturer, reasonable price, diversified model. It can be customized according to customer requirements. What's more, it has adequate supply, quick delivery and three-guarantees after sale.
Q:Is aluminum tape toxic?
Aluminum tape is non-toxic. However, if the oxidation film on the surface of aluminum foil is damaged, aluminum element may deposit in the body and affect people's health. But it is not poisoned. Aluminum tape is widely used in refrigerator, air conditioning, automobile, petrochemical, bridge, hotels and so on. It uses quality pressure-sensitive adhesives (PSAs) and has various characteristics such as good stickiness, aging resistance.
Q:What are the trends of foil sealing technology?
High-speed filling can be used for food, precise metering, food sealing machine structure will greatly simplify and improve the quality of packaging products, the real high-speed, high-quality, low consumption and production safety.

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