The hand sanitizer is still liquid in the bottle, but it turns into foam when it is squeezed out. The structure of this popular foam bottle in recent years is not complicated.
When we press the pump head on the ordinary hand sanitizer bottle, the piston in the pump is pressed down, and the downward valve is closed at the same time, and the air in it is forced to be discharged upward. After letting go, the spring returns, and the lower valve opens.
The air pressure in the pump becomes lower, and the atmospheric pressure will squeeze the liquid into the suction pipe, and the foaming bottle has a larger chamber near the pump head for making and storing foam.
It is connected with a small pump for air intake. Before the liquid is pumped into the chamber, it will pass through a nylon mesh full of small holes. The porous structure of this mesh allows the surfactant in the liquid to fully contact with the air in the chamber to form a Rich lather.
Liquid dispensing pumps may not produce foam for a number of reasons
1. Insufficient concentration of foam solution: The generation of foam requires sufficient concentration of foam solution. If the concentration of foam liquid supplied by the liquid dispensing pump is insufficient, stable foam cannot be produced.
2. Pressure problem: The generation of foam usually requires a certain pressure to mix liquid and air. If the liquid dispensing pump has insufficient pressure or the pump output pressure is incorrect, it may not be able to generate enough pressure to generate foam.
3. Faulty or damaged foam generator: Foam liquid is usually mixed with gas and liquid through the foam generator. If the foam generator is faulty or damaged, the gas and liquid may not be mixing properly and foam will not be produced.
4. Blockage or blockage: The tubes, nozzles, or filters of the liquid dispensing pump or foam generator may become clogged, preventing the proper flow of liquid and air to produce foam.
Post time: Jul-20-2023