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What is the principle used in the airless bottle

Update: 20-03-2020
Summary:

Many vacuum bottles used in cosmetics now can isolate t […]

Many vacuum bottles used in cosmetics now can isolate the substances in it from the air, preventing oxidative deterioration and harmful bacteria. However, I believe everyone is not particularly familiar with its working principle, we will introduce it below. The vacuum bottle we often see is composed of an ellipsoidal container and a piston. It is generated by the force of a spring, using contraction to prevent air from entering the bottle, and then using atmospheric pressure to advance the piston. But we must pay attention to not be able to make the contraction force between the piston and the bottle wall too large, otherwise we are particularly difficult to advance. Of course, if you can move forward with special force, it will also affect normal use and leaks, so the requirements on the manufacturer are high. It can be said that the introduction of the vacuum bottle has brought us great convenience, especially for the female cosmetics industry. Can effectively ensure the quality of the product and maintain freshness. However, because the structure of the vacuum is more complicated, it is relatively expensive in terms of price. At present, we have not used many vacuum bottles. It is believed that with the expansion of consumer demand, more and more progress will be made to meet the needs of different grades of skin care products.

Through the above introduction, I believe that everyone has a good understanding of the vacuum bottle, everyone knows the role of this bottle, I believe that the future application will be more extensive.

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