Now the vacuum bottle is more and more sought after by the major brands,

what is the difference between it and the traditional lotion pump?

How does it work and what are the advantages?

The case of the emulsion pump has a small hole,

The outside air is replenished into the bottle through small holes

To achieve a balance of pressure inside and outside the bottle,

Vacuum pumps, by contrast,

There are no holes in the vacuum pump casing,

Objective To produce vacuum negative pressure in the bottle.

Typical vacuum bottle structure diagram.

The main work flow of vacuum bottles is divided into two parts:

Pressure and volume compensation inside the container.

Push down the pump,

The material stored inside the pump chamber is extruded

Let go of the pump,

The material in the bottle is pumped into the pump chamber by the pump core,

There is negative pressure inside the bottle due to volume loss.

The piston is under constant negative pressure,

Moving up the bottle,

To compensate for the negative pressure inside the bottle,

At the same time, the outside air is under the action of the piston

Through a small hole in the bottom lid and into the bottle,

In order to achieve the balance of pressure inside and outside the bottle.

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Material and air in vacuum bottle

Always isolated on either side of the piston,

There is no contact reaction between them,

The service life and effect of the material have also been significantly improved.

So vacuum bottles have become

The preferred packaging container for major high-end skin care brands