The integration of vacuum pump technology in cosmetic nozzles enables precise control of product flow. This technological innovation has completely changed the way cosmetics are dispensed, bringing users a seamless and efficient experience.
In vacuum pump technology, negative pressure is the core of its flow control. Traditional cosmetic nozzles push out products by squeezing the container, while vacuum pumps use a more complex method. When the user presses the nozzle, the valve opens and air is expelled from the container, causing negative pressure inside the container, which pushes the product to the nozzle outlet.
The key lies in the balance between negative pressure and product resistance. The viscosity and other physical properties of the product determine the fluidity of the product under negative pressure. If the product is too viscous, it may not flow out smoothly; conversely, if the product is too diluted, it may flow away quickly, but the valve of the vacuum pump can adjust the flow to maintain balance.
The vacuum pump mechanism also includes a one-way valve to prevent air from re-entering the container, maintaining a negative pressure state, and ensuring a continuous and stable controlled flow. When the user releases the nozzle pressure, the one-way valve closes to prevent air from entering and destroying the vacuum state.

Vacuum pump technology in cosmetic nozzles brings many benefits:

1. Precise dispensing: users can accurately dispense the required amount of product, reduce waste, and ensure effective use.
2. Even application: Controlled flow eliminates sudden bursts of product and promotes even application, especially for products such as foundation and liquid eyeliner.
3. Hygiene: Controlled flow reduces product contact with the external environment, reduces the risk of contamination, and maintains product integrity.
4. Easy to use: Users can easily obtain the required amount of product without excessive squeezing or shaking, suitable for individuals of all ages and physical levels.