Vacuum bottle refers to a container that can isolate gas from external temperature or isolate external bacteria.
The contents of the vacuum bottle can be completely isolated from the air, so as to avoid the oxidation and deterioration of the product due to contact with the air and the breeding of bacteria, and to improve the product file with its high-tech concept. The popular vacuum bottle on the market is composed of a cylindrical ellipsoidal container and a piston at the bottom. Its design principle is to use the contraction force of the spring to prevent air from entering the bottle, causing a vacuum state, and use 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 move forward due to excessive resistance; On the contrary, if the piston is easy to move forward and material leakage is easy to occur, the vacuum bottle requires highly professional manufacturers.
Many people are using vacuum bottles for packaging, or because they are curious or have few products to press, and want to unscrew the press pump to see, they will see that there is no straw on the press pump, and they think that the straw is broken. In fact, this is a wrong operation of the vacuum bottle.
When pressing the vacuum bottle, the bottom vacuum plug is pushed upward using the pressure principle, and it can be smoothly pressed out after several times of pressing to exhaust air.
If you are impatient, you can turn the bottle upside down and press it out. This will not cause backflow of the product, so that you can only go out without going in, and fundamentally eliminate pollution and oxidation.
Therefore, the vast majority of skin care products that assist in the treatment of sensitive skin, acne skin and other skin problems will basically be packaged in vacuum bottles to fundamentally eliminate product pollution, thus ensuring the activity and safety of the products.