Raw Material Selection
The first step in the manufacturing process is the selection of high-quality aluminum alloy as the raw material. This alloy is chosen based on its purity, ductility, and resistance to corrosion, ensuring that the final product meets the stringent hygiene standards for food packaging.
Rolling and Annealing
Once the raw material is selected, it undergoes a rolling process to achieve the desired thickness and width. This involves passing the aluminum alloy through a series of rollers, gradually reducing its thickness while maintaining its width. The rolling process is carefully controlled to ensure uniform thickness throughout the aluminum foil.
|
Name |
Household Aluminum Foil(HHF) |
Type |
Jumbo Roll |
|
ID |
76mm, 152mm |
OD |
>450mm, customized request |
|
Thickness |
0.008mm-0.04mm |
Thickness tolerance |
+/-5% |
|
Width |
200mm-800mm |
Width tolerance |
+/-5% |
After rolling, the aluminum foil undergoes an annealing process, which involves heating it to a specific temperature for a specific period of time. This improves the ductility and flexibility of the foil, making it easier to handle and roll into large jumbo rolls.
Cleaning and Surface Treatment
Before the aluminum foil can be used for food packaging, it must be thoroughly cleaned to remove any impurities or contaminants. This involves a series of cleaning steps, including rinsing, brushing, and drying, to ensure the foil is completely clean and ready for the next stage.
Surface treatment is another crucial step in the manufacturing process. This involves applying a thin coating to the surface of the aluminum foil to improve its corrosion resistance, adhesion properties, and printability. The coating is carefully applied to ensure it is uniform and does not affect the overall quality of the foil.
Gnee is a diversified company, established in 2016 and headquartered in Tianjin, China. The main business scope of the company includes metal materials, daily necessities, and other fields. The company has been adhering to the corporate philosophy of integrity and innovation for development and has a professional R&D team and a high-quality sales and service team.
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