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What Is The Airless Bottles

Sep 20, 2019

The contents of the airless bottles can be completely isolated from the air, so as to avoid oxidative deterioration and bacterial growth caused by the contact with the air, and to upgrade the product file with its high-tech concept. 

airless bottles

The popular airless bottles on the market consists of a cylindrical elliptical container and a piston at the bottom. Its design principle is to use the contraction force of the spring, and not allow air into the bottle, resulting in a vacuum state, and use atmospheric pressure to drive the piston at the bottom of the bottle forward. 

bottles

But because the spring force and atmospheric pressure can not give enough force, the piston can not be too close to the bottle wall, otherwise the piston will not be able to advance because of excessive resistance; on the contrary, if the piston is easy to move forward and easy to leak material, the airless bottles has a very high requirement for the manufacturer's professionalism.