What is a vacuum plastic bottle and what are its characteristics

Update:22-02-2020
Summary:

The contents of the airless bottle can be completely is […]

The contents of the airless bottle can be completely isolated from the air, avoid oxidation and deterioration of the product due to contact with air, breed bacteria, and use its high-tech concept to enhance the product profile. The airless bottles commonly used in the market are composed of a cylindrical and ellipsoidal container and a piston at the bottom. Its design principle is to use the contraction force of the spring and prevent air from entering the bottle, creating a vacuum state, and use atmospheric pressure to push the piston at the bottom of the bottle forward. However, because the spring force and atmospheric pressure cannot give sufficient force, the piston cannot fit too tightly with the bottle wall, otherwise the piston will not be able to rise and advance due to excessive resistance; on the other hand, if the piston is to be easily advanced and prone to leakage, Therefore, the vacuum bottle has very high professional requirements on the manufacturer.
The introduction of the vacuum bottle conforms to the latest development trend of skin care products and can effectively protect the fresh quality of the product. However, due to the complicated structure and high cost of airless bottles, the use of airless bottle packaging is limited to a limited number of products and cannot be fully spread on the market to meet the needs of skin care products packaging of different grades.
Manufacturers pay attention to the protection and decoration of skin care skin care products while focusing on the development of skin care product packaging functionality, so that the product's "fresh", "natural", "preservative-free" concept is worthy of the name.