Production process of aluminum cap

This is Daisy from YANTAI HONGNING INTERNATIONAL TRADE CO., LTD, today I will introduce the aluminum caps for you. In recent years, aluminum bottle caps have been more and more widely used in our daily life, especially in the packaging of alcohol, beverage and medical and health products. We have many kinds of aluminum cap, also accept customized according to customer’s requirement.
Aluminum anti-theft cover is used in wine packaging, and aluminum cover is generally divided into short cover, medium cover and high cover. The process of short cover and middle cover is generally: back coating – direct coating – printing – glazing – stretching; The process of high cover is generally: back coating – positive coating – printing – glazing – stretching – roll printing – roll polishing. All aluminum covers will go through the plate printing and glazing process, and the high cover will go through the roll printing and rolling process.
The aluminum cover is characterized by large tensile deformation, and the general high cover stretch is more than 60mm, which requires high tensile properties of paint varnish. Our factory used the raw material of aluminum plate, we have 8011, 3105, 5052. These are most commonly used. The aluminum plate should be clean, no air hole, no depainting. After preparing the material, through deep drawing, printing, embossing, milling art, add liner and packing. Advanced printing technology can meet the same color, beautiful patterns and other effects. The aluminum bottle cap also has good sealing property and can meet special requirements such as high temperature cooking and sterilization. Therefore, the performance is superior and the application is wide.
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Aluminum caps are mostly processed in production lines with a high degree of automation, so the strength, elongation and dimensional deviation requirements of the material are very strict, otherwise it will crack or crease during processing. Material requirements: the surface of the bottle cap material plate is flat, no roll marks, scratches and stains
With the innovation of technology, the function and production form of aluminum bottle caps are also developing in the direction of diversification and high-grade, aluminum bottle caps can not only be made mechanized, large-scale, but also low cost, no pollution, and can be recycled. Therefore, in the future of wine bottle caps, we can foresee that aluminum bottle caps will still be the mainstream. Finally the cap is formed, we filled the bottle with water to check if it was leaking. This is the best way to test the quality.
If you are also interested, please contact us soon!


Post time: Jun-14-2023