Aluminum caps are bottle caps meticulously processed from high-quality special aluminum plate materials. They are mainly used for the packaging of alcoholic beverages, beverages (carbonated and non-carbonated), oral liquids, and healthcare products. They can meet special requirements such as high-temperature cooking and sterilization and have the advantages of being beautiful, hygienic, and not rusting. The production process of aluminum caps is strict, and there are strict requirements on the strength, elongation, and dimensional deviation of the materials to ensure that after the bottle cap is formed, it is convenient for printing and has good sealing performance. In addition, aluminum caps also have good characteristics such as buffering, shock resistance, heat insulation, moisture resistance, and chemical corrosion resistance. They are non-toxic, do not absorb water, and do not shed dust, skin, or debris, enhancing the sealing performance. According to customer needs, aluminum caps can also undergo special treatments such as high temperature resistance, boiling water resistance, and alcohol resistance. Pattern designs can use color printing, embossing, milling and other methods to make the product more valuable. The inner liner of aluminum caps uses special glue-dropping materials and advanced production processes to ensure excellent sealing performance after sealing the bottle. The surface of the cap has a larger flat surface, making it more beautiful to print various text, logos, and patterns.
The sealing principle of aluminum caps is mainly realized through the cooperation between the aluminum cap and the bottle mouth. The bottle mouth will be degreased and cleaned to eliminate dirt and grease. Then, pressure is applied by external force or mechanical devices to make the aluminum cap and the bottle mouth closely fit. Opening an aluminum cap usually requires applying external force, such as unscrewing or tearing off the cap. It is designed with pull rings or other opening devices for the convenience of consumers. Aluminum caps also have anti-counterfeiting functions. By printing special marks, trademarks, or digital codes on the aluminum cap, the authenticity of the product is ensured. In addition, some aluminum caps are also designed with air permeability. Through micropores or opening ventilation devices, the air pressure balance inside and outside the packaging is adjusted to avoid packaging expansion or explosion. At the same time, problems such as odor and mildew inside the packaging are prevented, maintaining the freshness and quality of the product.
The main production materials of aluminum caps include alloy states such as 8011-H14 and 3003-H16. The thickness is generally 0.20mm to 0.23mm, and the width is 449mm to 796mm. In the production process, hot-rolled billets or continuous casting and continuous rolling billets can be used and rolled by cold rolling. At present, the demand for anti-theft bottle caps in my country is growing rapidly. Especially for packaging such as baijiu, wine, medicinal liquor, and beverages, glass bottles are still mainly used, and many bottle caps are made of aluminum. With the continuous development of anti-counterfeiting technologies for alcoholic beverages, the functions of aluminum bottle caps are constantly changing, but the main materials used are still aluminum and plastic. Among them, aluminum bottle caps are favored because of their good performance, low cost, no pollution, and recyclability.
Hicap Aiot Technologies(Yantai)Co.,Ltd-Professional closures manufacturing.
