Different Types of Aluminum Foils

1. Different Types of Aluminum Foils Abstract: Due to extremely sealing performance, good thermal conductivity and safety, aluminum foil is of wide application in bottle cap material, food packaging, barbecue, pharmaceutical packaging, air conditioner,etc. No matter which type of aluminum foil you need, we can offer you. Bottle Sealing Foil Aluminum foil bottle caps are very common in life, such as cosmetic bottle caps, can bottle caps, wine bottle caps, medical bottle caps, etc. The requirements of the bottle cap material are to ensure the airtightness and stability of the product. The common two choices are 8021 and 8011 aluminum foil. 8011 bottle sealing foil is divided into cast rolling and hot rolling. Fe and Si elements are added to this kind of aluminum foil, and its performance is better than that of pure aluminum foil.

2. 8011-H18 is mainly for stamping shallow caps. 8011 H16 foil is mainly for wine and medical caps. For meeting the requirements of different caps, its production process is slightly different. As one of the popular 8 series aluminum foil, 8021 aluminum foil is widely used for food packaging. It has good plasticity, which can be processed into good shapes. It has wide application in bottle cap, food container, soft battery pack,etc. What are the differences between 8011 and 8021? Chemical Composition Allo Other Al Si Cr Cu Mn Fe Zn Mg Ti y Eac Tota h l 801 0.5-0. ≤0.0 ≤0.1 ≤0.2 0.6-1. ≤0.1 ≤0.0 ≤0.0 0.05 0.15 remainde 1 9 5 0 0 0 0 5 8 r Alloy Si Fe Cu Mn Mg Zn Other AL 8021 ≤0.15 1.2-1.7 ≤0.05 - - - ≤0.05 remainder It can be seen that 8011 aluminum foil contains Mn and Mg elements while 8021 aluminium foil does not have them, so the strength and corrosion resistance of 8011 aluminum foil are higher than those of 8021 aluminum foil. Different specific uses As an aluminum foil raw material, their specific application fields are different. 8021 aluminum foil is suitable for bottle caps that require better deep drawing performance, and 8011 aluminum foil is often used in yogurt caps and other places. 8011 aluminum foil has high strength, but the elongation and puncture resistance in the same state are lower than 8021 aluminum foil. In drug packaging, the aluminum foil on the back of the capsule drug board is mostly 8021 aluminum foil, while the blister packaging usually chooses

3. 8021 and 8079 foil. Aluminum foil price 8011 aluminum foil is of wider application and cheaper price than those of 8021 aluminum foil roll. 8011 aluminum foil is widely used in many fields such as pharmaceutical packaging, food packaging, food container, tape foil, cable foil, bottle cap material,air conditioner foil, etc. 8021 foil is mostly used in the packaging of lithium battery soft-pack aluminum-plastic film and blister packaging. BBQ Aluminum Foil In our life, both aluminum foil and tin foil can be used for food wrapping, but aluminum foil is better for grilling than tin foil. What are their differences? Different processing: aluminum foil for grilling is processed by aluminum through rolling equipment, and the thickness is less than 0.025mm. Tin foil is processed by metal tin through rolling equipment, which has excellent ductility. Different uses: The melting point of aluminum foil is higher than that of tin foil, which is more suitable for grilling food. The melting point of aluminum foil is 660℃. The boiling point is 2327°

4. C. Poisoning reactions are different: tin can irritate the stomach, and aluminum can cause Alzheimer's. Tinfoil or aluminum foil is mostly used to wrap ingredients for grilling to prevent meat from scorching. If you just use them to wrap the ingredients and put them in the oven for grilling, there is little damage to the body. Different appearances: tin foil is much brighter than aluminum foil, but the ductility of tin is very poor, and it will break when pulled. The aluminum foil material is relatively stiff and easy to cut. It is mostly packaged in rolls, and the price is relatively cheap. Tips: 1. When wrapping the food with aluminum foil for grilling, do not drop acidic substances such as lemon juice into the aluminum foil When metals are mixed with acidic substances, chemical changes will occur, and substances that are harmful to the human body are easily produced. 2. Do not directly touch the open flame, do not easily heat it in the microwave oven, and operate according to the instructions only under the microwave oven grill function.

5. Pharmaceutical Aluminium Foil All the medicines needs to be well packaged to avoid the damage from light, oxygen and moisture. Only in this way can these ingredients maintain the effects they produce when ingested. Blister packs are commonly used for drugs in the pharmaceutical industry. These include so-called push-in blisters (or shorter "blisters"), which consists of PVC and aluminum foil. As a result, capsules and tablets are hygienically clean and protected. Pharmaceutical aluminum foil s suitable for safe packaging for pharmaceuticals. In addition, it can also be suitable for different applications, such as "capsule" lids or lids for tablet trays, by using different alloys with different mechanical properties. Features 1. It has comprehensive barrier protection against light, moisture, oxygen and other gases and liquids. 2. It can provide good mechanical protection. 3. It is light in weight, allowing the use of minimal transportation and production space. 4. It follows the FDA safety use and food contact standards. The pharmaceutical aluminium foil has two types: rigid aluminium foil and soft aluminum foil. Traditionally, rigid aluminum foil is used. There is only a small stretch. The advantage of this is

6. that you can break off relatively quickly and release the drug with relatively little force. On the other hand, if soft aluminum foil is used, more force must be applied to reach the drug because the tensile force of the film is higher. Therefore, blister packs made of soft aluminium are considered to be more resistant to accidental ingestion by children. Aluminium Foil Packaging In daily life, the close relationship between food packaging and food has long been recognized by people. Aluminum foil for food packaging not only plays a role in protecting food from contamination or damage, but also facilitates the storage, transportation and sales of food. What are the different forms of aluminum foil packaging? 1. Cooking bags The cooking bags has good high temperature resistance, high barrier properties and heat sealing strength, especially the barrier performance of aluminum foil does not change with the temperature change during sterilization, which can extent the shelf life of goods. 2. Multi-layer composite materials Aluminum foil and plastic film are used to make two-layer or three-layer composite materials, which are used for packaging with high air tightness requirements such as moisture-proof and

7. fragrance preservation. This composite packaging is mainly used for tea, milk powder and various small food packaging,etc. 3. Cover seals and blister packaging It is widely used in the packaging of medicine and candy. The blister packaging can be made of PVC, PS and other plastic sheets, and the cover materials are mostly pre-printed aluminum foil coated with heat-sealing glue. In addition, the cover material for the sealing of boxes, cups, plates, etc. used for food packaging also generally choose aluminum foil with a heat-sealing layer coated with PE. 4. Foil trays Thick aluminum foils can be processed into trays and food containers with or without lids. As a container for food, there are strict requirements for safety and hygiene. Aluminum foil for food tray requires clean surface, flat shape, uniform color, no mottle, no roll marks, no oil stains,etc. Air conditioner aluminum foil Air conditioner aluminum foil is a special material for the manufacture of heat exchanger fins for air conditioners. The aircon aluminum foil used in the early days was plain foil. It refers to aluminum foil that has been rolled and annealed without any form of surface treatment. In order to improve the surface properties of plain foil, coated aluminum foil is to reprocess the surface of non-coated aluminum foil to make it have some special function. Different types of air conditioner foil are generated like corrosion-resistant aluminum foil, hydrophilic aluminum foil, hydrophobic aluminum foil,etc.

8. The surface of the corrosion-resistant aluminum foil has a certain anti-corrosion protective layer. The air-conditioning heat exchange fins made of this foil paper can be used in relatively harsh areas and can significantly improve the service life of the air conditioner. At the same time, due to the improvement of the corrosion resistance of the heat exchange sheet, the generation of surface corrosion powder is greatly reduced, thereby improving the ventilation quality and purifying the air in the air-conditioned room. At present, hydrophilic foil accounts for 50% of the total amount of air-conditioning foil, and the proportion of its use will be further increased. Fins with good hydrophilicity can improve the heat exchange efficiency of the air conditioner heat exchanger, significantly save power consumption, and effectively reduce the distance between the fins of the heat exchanger, thereby reducing the volume of the air conditioner. Hydrophobic aluminum foil is also called water-repellent aluminum foil, and its surface properties are just the opposite of hydrophilic aluminum foil. That is, when the condensed water condenses on the surface of the aluminum foil, the contact angle formed with the aluminum foil is relatively large, generally above 75 degrees. The larger the angle, the better the water repellency. In the process of manufacturing the air-conditioning heat exchange fin, lubricating oil should be added to its surface first, then punching and flanging, and finally washing off the lubricating oil with trichloroethylene. Since trichloroethylene is harmful to the human body, in order to reduce this process, self-lubricating aluminum foil is produced accordingly.

9. The manufacturing of jumbo aluminum foil for air conditioner includes unwinding, pretreatment, surface roll coating( first roll coating → first drying → second roll coating → second drying) and coiling. The function of pretreatment is mainly to enhance the bonding force between the coating and the aluminum foil. The function of the coating plays the role of increasing the hydrophilicity and corrosion resistance of the product.