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If you pay attention, you will find that although the shampoo bottle has not changed much, the shampoo bottle cap is constantly changing and upgrading.

The initial shampoo bottle cap is a common spiral plastic cap. Later, more and more shampoo bottle caps adopt butterfly caps. Indeed, butterfly covers are more convenient when using squeeze shampoo. Now, all kinds of extrusion pump heads have become the latest way to use shampoo bottle caps. This pump head can be called a lotion pump. Compared with other bottle caps, it is easier to control the quantity and more convenient.

The development and change of shampoo bottle caps are constantly moving towards humanization, which is worth learning from other packaging bottle caps in the bottle cap design process. At present, many bottle cap designs in China are very traditional and have not changed much and need continuous improvement.

However, the emulsion pump still has some defects and needs improvement. It sometimes gets stuck and sticks, and lotion pump needs to become more reliable.

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There are always many bottles of lotion pumps used in our life, so kexon will tell you about the working principle of lotion pumpstoday.

1. First Press-When we press the press head for the first time, the press head drives the auxiliary column to compress the spring together through the connected main column. In the process of compressing the spring, the outer wall of the piston pushes the piston to open the discharge hole of the secondary column through friction with the inner wall of the body. When the piston slides downwards, the air in the body is discharged through the already opened secondary column discharge hole.

2. Press repeatedly and repeatedly-to exhaust all the air in the body.

3. Suction-Press the press head by hand to discharge the air in the body through the main column, the auxiliary column, the piston and the common compression spring. Release the press head. The spring moves back (up) due to loss of pressure. At this time, the piston also moves down through the inner wall of the friction body to close the discharge hole of the auxiliary column. At this time, the liquid storage cavity in the body is in a vacuum liquid absorption state, the glass ball is sucked upwards, and the liquid in the bottle is sucked into the liquid storage cavity of the body through a suction pipe.

4. Storage of Liquid-Press the pressing head several times, and store the liquid to the body by sucking the liquid many times until the liquid is fully stored.

5. Discharge-When the liquid in the liquid storage cavity of the body is full, press the press head again, and the liquid will be directly discharged from the press mouth through the discharge hole.

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Lotion pumpis also called pressing lotion pump. It is a liquid distributor that uses the principle of atmospheric balance to pump out the material liquid in the bottle by pressing and replenish the outside atmosphere into the bottle.

Main performance indexes of lotion pump: air pressure times, pump output, down force, head opening torque, rebound speed, water intake index, etc.

When the pressing handle is pressed down manually, the volume in the spring chamber decreases and the pressure increases. The liquid enters the nozzle chamber through the hole of the valve core and then ejects the liquid out through the nozzle. When the pressing handle is released, the volume in the spring chamber increases and negative pressure is formed. The ball is opened under the negative pressure, and the liquid in the bottle enters the spring chamber. At this time, a certain amount of liquid is already stored in the valve body. When the handle is pressed again, the liquid stored in the valve body will be flushed upward and sprayed out through the nozzle.

Judging from the above working principle, the key to a good pump head is to pay special attention to the following areas:

1. Glass beads or steel balls under the spring.

2. Look at the sealing ring at the upper end of the valve body.

3. The matching of the pressing handle and the valve core.

4. The design of the nozzle depends on the atomization effect.

Therefore, the function of the general pump head also detects these four positions, and other appearance and coordination problems are detected conventionally.

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The use of plastic pumpheads for cosmetics should not be too frequent, because the resilience of the spring is limited. Each use must be within the range of the spring's resilience and cannot be used strongly. This is the same as the restriction of people. When a person's physical strength is overdrawn, he will collapse.

On average, the pump head should not be pressed more than 10 times and the interval should not be less than 10 seconds. There should be enough time for it to rebound.

The built-in spring of cosmetic pump head should not be too long, of course, too short is not enough. The selection and determination of the general thread diameter also plays a key role. Generally speaking, the common cosmetic pump head spring is the most reasonable with 13 and a half turns, so the resilience and pressing force are just within the reasonable range.

Ningbo KeXon Plastic Co., Ltd has a highly skilled and experienced R&D team, which has long been committed to independent research and development of new products. We also provide customized service for various cosmetic packaging and daily packaging products according to customer requirements.

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The development speed of cosmetic covers has exceeded people's imagination. In our daily life, we can see the application of hose covers everywhere, such as shampoo, cosmetics, detergent, etc. We can see the effect of hose covers in our daily life.

From simple plastic round caps to diversified spray pumpsand hose caps, this process changes according to people's overall needs. Round caps are not as leak-proof as hose caps for cosmetics.

The hose cover can prevent water outside from directly entering the bottle. For the storage of cosmetics, the hose cover can better prevent water outside and bacteria from entering the cosmetics. But also has excellent gas barrier performance, can effectively prevent the infiltration of oxygen and peculiar smell gas, and simultaneously prevent the exudation of fragrance of contents and effective components.

Therefore, the waterproof capability of the hose cover is relatively strong, and it can also directly improve the grade of cosmetic packaging and the use experience of users.

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Kexon is a professional manufacturer of plastic cosmetic pumpheads. Each pump head produced has to undergo multi-step testing.

Let's take a look at what checks a Kexon product needs to make before it leaves the factory:

1. After the plastic pump head is sampled, the sample must first be confirmed to the customer to see if the plastic pump head meets the customer's requirements.

2. For mass-produced cosmetic pump heads, first of all, the appearance shall be tested to ensure good appearance, no scratches, no black spots, cleanliness and hygiene.

3. The number of first pump presses must be less than or equal to 6. The number of pump starts produced by Yuanchang is generally less than 5.

4. The liquid pumped by the plastic pump head shall be uniform and conform to the specifications, and strict pumping test shall be conducted.

5.Kexon plastic pump head will be equipped with customer's bottles and liquid, and will be tested in vacuum environment to ensure no liquid leakage or overflow.

6. Then carry out backflow test on the cosmetic pump head to see if it will return to the nozzle.

7.Kexon cosmetic pump head should also undergo strict suction test.

8. The thickness test of the pump head gasket is generally greater than 1.8 mm.

9. Pipe length test of pump head.

10. All accessories are complete.

"quality first, honesty first" Kexon's consistent tenet. if you are interested in our products, please call us: