How does the cosmetic glass sub-bottle ensure its sealing?
Publish Time: 2025-02-06
As an important part of cosmetic packaging, the sealing of the cosmetic glass sub-bottle is crucial to ensure product quality, extend the service life and enhance user experience. In order to ensure that cosmetics are not contaminated by the outside world during storage and use, and maintain their original quality and efficacy, the cosmetic glass sub-bottle adopts a variety of sealing technologies and designs.
The glass material itself has excellent chemical stability and barrier properties, which can effectively prevent the active ingredients in cosmetics from adversely reacting with external oxygen, moisture, etc. However, the glass material alone is not enough to ensure the complete sealing of the sub-bottle. Therefore, in the design and manufacturing process of the cosmetic glass sub-bottle, a variety of sealing elements and structures are usually combined.
Among them, the matching design of the bottle cap and the bottle mouth is the key. Common sealing methods include threaded sealing and pressure-sensitive sealing technology. Threaded sealing forms a tightly enclosed space by meshing the threads on the bottle cap with the threads on the bottle mouth. This sealing method has a simple structure, is easy to operate, and has a good sealing effect. The pressure-sensitive sealing technology achieves the purpose of sealing by attaching a special pressure-sensitive sealing film to the bottle mouth and applying a certain amount of pressure to make it fit tightly to the bottle mouth. This method is not only beautiful and practical, but also can provide better sealing performance and anti-leakage effect.
In addition, in order to further enhance the sealing performance, the cosmetic glass sub-bottle often adopts a lining design. The lining material is usually made of rubber, silicone and other materials with excellent elasticity and sealing properties, which can fill the tiny gap between the bottle cap and the bottle mouth to prevent air and moisture from penetrating into the bottle. At the same time, the lining material can also play a certain buffering and protective role for cosmetics, reducing its vibration and impact during transportation and storage.
In addition to the above-mentioned sealing elements and structures, the cosmetic glass sub-bottle also needs to undergo rigorous inspections and tests during the manufacturing process to ensure that its sealing performance meets the relevant standards and requirements. These inspections and tests usually include air tightness tests, water pressure tests, etc., which can comprehensively evaluate the sealing performance and durability of the sub-bottle.
In summary, the cosmetic glass sub-bottle ensures its excellent sealing performance through the comprehensive application of multiple sealing technologies and designs. This not only helps maintain the quality and efficacy of cosmetics, but also improves user experience and product market competitiveness.
