What are the characteristics of vacuum plastic bottles?
Today, vacuum bottles play an important role in people’s lives and are widely used in the cosmetic packaging industry. The contents of the vacuum bottle can be completely isolated from the air, preventing the product from being oxidized and deteriorating due to contact with the air and breeding bacteria.
The vacuum bottle commonly used in the market consists of a cylindrical container and a piston placed at the bottom. Its design principle is to use the contraction force of the spring to prevent air from entering the bottle and form a vacuum state, thereby using the atmospheric pressure to push the piston at the bottom of the bottle forward. However, the spring force and atmospheric pressure cannot give enough force, so the piston cannot fit too tightly with the bottle wall, otherwise the piston will not be able to rise and move forward. Therefore, the vacuum bottle has very high requirements for the professionalism of the manufacturer.
The launch of the vacuum bottle conforms to the latest development trend of skin care products, which can effectively protect the freshness of products and meet the needs of skin care product packaging. However, due to the complex structure and high cost of vacuum bottles, the use of vacuum bottle packaging is limited to individual products and cannot be fully implemented in the market.
While attaching importance to the protection and decoration of skin care product packaging, manufacturers have begun to focus on developing the functionality of skin care product packaging. This can make the product’s concept of “fresh”, “natural”, “preservative free” worthy of its name.
