English
简体中文Distributors are divided into two types: tie-type and screw-type. In terms of function, they are divided into spray, foundation cream, lotion pump, aerosol valve, and airless bottle.
The size of the spray pump head is determined by the caliber of the matching bottle. The spray specification is 12.5mm-24mm, and the water output is 0.1ml/time—0.2ml/time. It is generally used for perfume, gel water and other product packaging, with the same caliber. The length of the tube can be determined according to the height of the bottle.
The small perfume spray pump head has a wide range of 18ml to 24ml, and the water output is 0.28ml/time-3.1ml/time. It is generally used for creams and washing products.
Special dispensers such as foam pump heads and hand-button sprinklers. Foam pump heads are non-air-filled hand-pressure pump heads that do not need to be filled to produce foam, and can produce quantitative high-quality foam with light pressure. Usually comes with a dedicated bottle. Hand-button sprinklers are usually used in products such as detergents.
The composition of the dispenser is more complicated, generally including: dust cover, snap head, snap rod, gasket, piston, spring, valve, bottle cap, pump body, straw, valve ball (with steel ball, glass ball). Bottle caps and dust caps can be colored, electroplated, and can be covered with anodized aluminum rings.
Airless bottles are usually cylindrical, with specifications ranging from 15ml to 50ml, and some have 100ml. The overall capacity is small. It relies on the principle of atmospheric pressure to avoid pollution caused by cosmetics during use. Airless bottles include anodized aluminum, plastic plating, and colored plastics. The price is more expensive than other general containers, and the general order quantity requirement is not high. Distributor customers seldom open molds by themselves, and they need more molds, and the cost is higher.
The working principle of the pump head:
Manually push down the pressure handle, the volume in the spring cavity decreases and the pressure rises. The liquid enters the nozzle cavity through the hole of the valve core, and then sprays the liquid out through the nozzle. At this time, loosen the pressure handle and the pressure in the spring cavity The volume increases and negative pressure is formed. The sphere opens under the action of negative pressure, and the liquid in the bottle enters the spring cavity. At this time, 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 be Punch upwards, spray out through the nozzle;
From the above working principle, the key to a good pump head is to pay special attention to the following places:
1. The glass ball or steel ball under the spring. The seal here is very important. It is related to the strength of the liquid in the spring cavity. If there is leakage, part of the liquid will leak into the bottle when the pressure handle is pressed. And affect the effect of liquid spray;
2. It is the sealing ring at the upper end of the valve body. If there is leakage, the upward force of the liquid will be reduced when the pressure handle is released, resulting in a small amount of liquid stored in the valve body, which will also affect the spray effect;
3. The fit of the pressure handle and the valve core. If the fit here is loose and leaks, there will be a certain resistance when the liquid rushes up to the nozzle, and the liquid will flow back. If there is leakage, it will also affect the spray effect. ；
4. The design of the nozzle, the design of the nozzle is directly related to the spray effect
