Product Definition
De lotion pumpe is a major accessory tool for taking out the contents in cosmetic containers. It is a liquid distributor that uses the principle of atmospheric equilibrium to pump out the material liquid in the bottle by pressing and replenish the external atmosphere into the bottle.
Manufacturing process
1. Structural components
Lotion pumper are usually composed of accessories such as a press nozzle/press head, upper pump column, lock cover, pakning, bottle cap, pump piston, lower pump column, forår, housing, glass ball, and tube. According to the structural design requirements of different pumps, the related accessories may vary, but the principle and ultimate goal are the same, det er, to effectively remove the contents.
2. Production process
Most of the components of the pump head are mainly made of plastic materials such as PE, PP og LDPE, and are formed by injection molding. Blandt dem, glasperler, fjedre, gaskets and other accessories are generally purchased from outside. The main components of the pump head can be applied to electroplating, electroplated aluminum cover, sprøjtning, injection molding color and other methods. Both the surface of the pump head’s nozzle and the surface of the dental crown can be printed with graphics and text, and can be processed by using printing techniques such as hot stamping/silver, screen printing, og pad printing.
Product structure
1. Product classification
Conventional diameters: Φ18, φ20, Φ22, φ24, φ28, Φ33, Φ38, etc. Classified by lock heads: guide block lock heads, threaded lock heads, clip lock heads, lockless lock heads.
By structure: spring external pump, plastic spring, water-proof emulsion pump, high-viscosity material pump;
According to the pumping method: vacuum bottle type and pipette type;
By pump output volume: 0.15/0.2cc, 0.5/0.7cc, 1.0/2.0cc, 3.5cc, 5.0cc, 10cc and above;
2. Working Principle
Manually press the handle downward. The volume of the spring cavity decreases and the pressure increases. The liquid enters the nozzle cavity through the hole of the valve core and is then sprayed out through the nozzle. På dette tidspunkt, release the handle. The volume of the spring cavity increases, creating a negative pressure. The ball opens under the effect of the negative pressure, and the liquid in the bottle enters the spring cavity. På dette tidspunkt, there is already a certain amount of liquid in the valve body. When the handle is pressed again, the liquid stored in the valve body will rush upwards and spray out through the nozzle.
3. Performance indicators
The main performance indicators of the pump include: air pressure frequency, pumpeydelse, downforce, torque for opening the head, rebound speed, and water intake volume indicators, etc.
4. The difference between built-in springs and external springs
The external spring does not come into contact with the contents and will not cause the contents to be contaminated due to rust on the spring.
Application of cosmetic packaging materials
Pump heads are widely used in the cosmetics industry, including in the fields of skin care and personal care, as well as perfume. They are applied in various product categories such as shampoo, body wash, bodylotion, essens, solcreme, BB cream, foundation, ansigtsrens, and hand sanitizer.
Procurement critical control points
1. Pumping effect
The sealing of the glass or steel balls under the spring is very important. It is related to the upward force of the liquid in the spring cavity. If there is a leak here, when the handle is pressed, some of the liquid will leak into the bottle, affecting the effect of the liquid spraying. Derudover, if the sealing ring at the upper end of the valve body leaks, when the pressure handle is released, the force required for the liquid to be pumped upwards will decrease, resulting in a very small amount of liquid stored in the valve body, which will also affect the pumping efficiency.
2. The fit between the handle and the valve core
If the fit here is too loose and there is leakage, when the liquid rushes up to the nozzle, there will be certain resistance and the liquid will flow back. If there is leakage here, it will also affect the spray effect.
3. Design of the pump nozzle
The design quality of the pump nozzle is directly related to the pumping effect.
4. Mold cost
Due to the large number of pump head components, the mold-making cost is relatively high.
