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Custom Airless Pump Bottle 15ml-100ml for Lotions & Serums

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Custom Airless Pump Bottle 15ml-100ml for Lotions & Serums

Brand Name : SWJ

Model Number : S

Place of Origin : China

MOQ : 10000pcs

Price : Negotiation

Delivery Time : 30days

Packaging Details : carton

Closure Type : Airless Pump

capacity : 15ml 30ml 50ml 100ml 150ml

Application : Lotions, Creams, Serums

Bottle Material : Plastic

Oem Service : yes

Colour : Can be customized

Logo : Available

Shape : Round

Delivery Date : 35 work days

Service : 24 Hours Online

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1. The Role of Air Pressure

The atmospheric pressure outside the bottle is pushing up on the bottom of the upside-down bottle (which is now on top).
Inside the bottle, there is no air to push down on the water from the inside (because you filled it completely, eliminating air bubbles).
This creates a pressure imbalance. The external atmospheric pressure is stronger than the very low pressure inside the bottle.

2. The Role of Water's Properties

Cohesion: Water molecules are attracted to each other, forming a "skin" at the surface (surface tension). This skin helps hold the water together as one body.
Adhesion: Water molecules are also attracted to the molecules of the plastic or glass bottle. This creates a slight seal at the rim.

The external air pressure pushing up, combined with the surface tension of the water and its adhesion to the bottle, effectively holds the water in place. The system is in equilibrium.

Custom Airless Pump Bottle 15ml-100ml for Lotions & Serums

Product Tags:

customized airless pump bottle with mist sprayer

stand upside down airless bottle 15ml

airless pump bottle with cream pump

Custom Airless Pump Bottle 15ml-100ml for Lotions & Serums Images

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