How does the air tightness of the empty aluminum mascara tube ensure that the product does not volatilize and dry?

The reason why the empty aluminum mascara tube can effectively prevent the product from volatilizing and drying mainly depends on its high airtightness design and high-quality material characteristics. This design not only ensures the stability of the product, but also extends the shelf life of the product, while improving the user experience.

The empty aluminum mascara tube is made of high-quality aluminum alloy material. The aluminum alloy itself has excellent corrosion resistance and sealing properties, which can effectively isolate oxygen, moisture and light, thereby reducing the oxidation and volatilization of product components. The density of aluminum alloy is low, but the strength is high. It can withstand the pressure and friction in daily use and is not easy to deform or damage. In a humid environment, aluminum alloy is not easy to rust or corrode, thereby maintaining the appearance and performance of the product.

During the manufacturing process, the empty aluminum mascara tube adopts precision machining and surface treatment technology. Through high-precision molds and stamping processes, the structure of the tube body is ensured to be tight, and gaps and pores are reduced, thereby reducing the possibility of air entry. Common surface treatment methods include anodizing, electroplating, spraying, etc. These treatments not only improve the beauty of the product, but also enhance its corrosion resistance and sealing.

In order to further enhance air tightness, the empty aluminum mascara tube usually adopts a double-layer sealing structure, that is, a sealing layer is set inside the tube body, forming a double protection with the external aluminum alloy shell, further reducing air contact.

The empty aluminum mascara tube adopts a piston-type pushing system. Through the movement of the internal piston, the product is pushed out from the bottom, reducing the chance of air entering the tube body, thereby reducing the volatilization rate. The connection between the brush head and the tube body is usually sealed with an O-ring or elastic lip to prevent air and moisture from entering the tube, thereby maintaining the freshness of the product.

Some products have a removable inner plug at the mouth of the tube, which can be removed after use to prevent air from entering and avoid pollution. To improve the sealing, some products are vacuum packed before leaving the factory to reduce oxidation and volatilization during transportation and storage.

The brush head is usually made of silicone or plastic, which is not only soft, but also effectively prevents air from entering. According to different usage requirements, the brush head can be designed in different shapes such as slender, curled, and dense, but no matter what the shape, the sealing between the brush head and the tube body is important.

In addition to the structure and materials of the product itself, environmental factors will also affect the air tightness. High temperature and high humidity environment will accelerate the volatilization of the product, so it is recommended to store it under appropriate temperature and humidity conditions. Ultraviolet rays will accelerate the oxidation of cosmetics, so it is recommended to store the product in a dark place to extend the shelf life.