A vacuum bottle refers to a container that can isolate the gas from the outside temperature or a container that isolates external bacteria. Its contents can be completely isolated from the air, preventing the product from being oxidized and deteriorating due to contact with the air, breeding bacteria, and improving the product grade with its high-tech concept. The vacuum bottle commonly used in the market is composed of a cylinder into an ellipsoid container and a piston placed at the bottom. Its design principle is to use the contraction force of the spring to prevent the air from entering the bottle, resulting in a vacuum state, and to use the atmospheric pressure to push the piston at the bottom of the bottle forward. However, since the spring force and atmospheric pressure cannot give enough force, the piston cannot be attached too tightly to the bottle wall, otherwise the piston will not be able to rise and move forward due to excessive resistance; on the contrary, if the piston is to be easy to move forward and material leakage is likely to occur, 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 and quality of products. However, due to the complex structure and high cost of vacuum bottles, the use of vacuum bottle packaging is limited to a limited number of categories of products, and cannot be fully rolled out in the market to meet the needs of different grades of skin care product packaging.

While attaching importance to the protection and decoration of cosmetic packaging materials, manufacturers have begun to focus on developing the functionality of skin care product packaging, so that the concepts of "fresh", "natural" and "preservative-free" of products are worthy of the name.
 
Vacuum packaging technology is a new concept with absolute advantages. This packaging technology has helped many new brands and new formulations go to market. Once the vacuum packaging is assembled, and the self-filling package is used by the consumer, little or no air can enter the container and contaminate or decompose the contents. This is the advantage of vacuum packaging - it provides a safe empty container for the product, avoiding contact with air, reducing the possibility of changes and oxidation, especially for delicate natural ingredients that need to be protected, and avoid adding preservatives. Among the calls, vacuum packaging is even more important for extending the shelf life of products.
 
The products of vacuum packaging are different from the common standard pump or spray pump of straw type. Vacuum packaging uses the principle of separating the inner cavity to squeeze the contents out. As the inner diaphragm moves up into the interior of the bottle, a pressure builds up and the contents are in a nearly 100% vacuum state. Another vacuum method is to use a vacuum soft bag, which is placed inside a rigid container. The concept of the two is almost the same. The widespread use of the former is an important selling point for brands because it consumes less resources and can also be identified as "green".
 
Vacuum packaging also provides precise dosage control. When the discharge hole and specific vacuum pressure are set, no matter what the shape of the matching indenter is, each dosage is accurate and quantitative. Therefore, the dosage can be adjusted by changing a certain part, from a few microliters or a few milliliters, according to the needs of the product. Product preservation and hygiene are the key values ​​of vacuum packaging. Once the contents are taken out, there is no way to put them back into the original vacuum packaging. Since the design principle is to ensure that every use is fresh, safe and worry-free, the internal mechanism of our products has no doubt that the spring will rust or contaminate the contents.
 
The packaging styles of vacuum bottles are different, and each customer's preferences are different. Customers can choose the corresponding vacuum bottle style according to the consumption level of brand positioning and the population. Generally, the price of vacuum bottles will be relatively high, and there will be different styles due to different styles. The difference, customers can choose appropriately according to the brand positioning!


Nail polish remover bottle （Navy blue）