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Basic knowledge of Airless bottle

Views: 326     Author: Site Editor     Publish Time: 2022-09-28      Origin: Site

Basic knowledge of Airless bottle

The most common cosmetics and skin care products in the market use airless bottles. Such as eye cream, essence, face cream, essence oil bottle, etc. Why do businesses or brand use airless bottles instead of ordinary lotion bottles. Let's take a look at the principle of airless bottle to explore.


What is a airless bottles?


It also called vacuum bottle. Airless bottles is a container that can isolate the gas from the outside temperature or the outside bacteria. The contents of the airless bottle can be completely isolated from the air to avoid the oxidation and deterioration of the product due to contact with the air, and the breeding of bacteria. Good skin care products can contain amino acid, protein and other substances, these substances are very afraid of dust, afraid of bacteria, and very afraid of contaminated substances. Generally, there are 15ml, 30ml, 50ml, 100ml and 120ml airless bottle.According to the material, there can be PP airless bottle, acrylic airless bottle, AS airless bottle and so on.


Design principle of vacuum bottle:

The empty airless bottle consists of a cylindrical ellipsoid container with a piston placed at the bottom. It's designed to use the contractile force of a metal spring to keep air out of the bottle, creating a vacuum, and atmospheric pressure to push a piston at the bottom of the bottle forward. But because the spring force and atmospheric pressure can not give enough strength, so the piston can not fit the bottle wall too tight, otherwise the piston will be too much resistance and can not rise forward; On the contrary, if the piston is easy to advance, it is easy to leaks. Therefore, the professional requirements of the vacuum bottle manufacturers are very high. The introduction of vacuum bottle conforms to the latest development trend of skin care products and can effectively protect the fresh quality of products.


Notes for airless bottle


1.The contents of the airless bottle are not suitable for filling oil. They must be flowable, free of particles and sand, and have low viscosity.

2.When filling the contents of the airless bottle, the piston at the bottom of the airless bottle is pushed upward by the vacuum principle and the pressure of the vacuum indenter. Therefore, when filling, Please use the airless bottle special filling machine to completely extract the air in the raw material, avoid filling the air into the raw material of the bottle body, which will cause the airless bottle can not be pressed out or the pressure is not smooth (do not use the vane motor to fill, because it is easy to produce bubbles);

3.When filling the contents, please fill the contents to the neck of the bottle, and make sure that the raw materials contact the indenter to avoid pressing out the raw materials;

4.Storage, please keep indoor ventilation and cool, avoid exposure to sunlight or high temperature, and do not long-term pressure;

5.Disinfection method: do not bake at high temperature, or any high temperature disinfection method or the use of air compression and air injection method can not be done, because the above methods will destroy the size of the airless bottle and the bottle plug, will cause the consequences of pressing out the raw materials or leakage;


White airless bottles are the most common use in the market.

Custom airless bottles are also accepted.

Welcome your inquiry, samples can be provided freely.