The cosmetic pump head has to go through many aspects o […]
The cosmetic pump head has to go through many aspects of inspection before it officially leaves the factory. For its functional inspection, it also includes many aspects. Now let's come to the popular science to check what are the functional aspects of the pump head?
1. Pump output
The average pump output of the pump head is greater than 0.22 grams per milliliter, and the pump output should meet the needs of manufacturers and purchasers.
The outer shell of the half body can not be loosened with the inner cover, or there is a spy, and it needs to be tightly and completely matched with the outer shell. The tightness is suitable. After the pump body and the bottle body are tightened, there will be no idling or tooth removal.
Corresponding flat body is tightly matched, the pump head does not slip off, and a water test can be done to check its leakage.
4. Air Compression Times
Matching bottle ≤100 ml, single pump head <10 times, matching bottle greater than 100 ml, single pump head should be <15 times, pump head rebound time <3 seconds is appropriate.
How to check whether the cosmetic pump head is qualified
After the production of the cosmetic pump head is completed, it is necessary to uniformly check his qualification. The production samples can be put into production after being qualified, and then put on the market for use. Unqualified goods need to be recycled and re-produced. How to check whether the cosmetic pump head is qualified What?
1. Heat and cold resistance experiment
Select the bottle matching the pump head, inject the corresponding volume of water according to the net content of the bottle, and test it at a constant temperature of 48 degrees in a thermostat for 24 hours. This is a heat resistance test. Place it in the refrigerator at minus 5 degrees to 15 degrees for 24 hours. It is a cold resistance experiment.
2. Appearance inspection
Under natural light, observe the integrity of the pump head at a distance of 30-40 cm, including the color, whether the pump head is smooth, whether there is any obvious damage, cracks, etc.
3. Strictness check
Fill the bottle with the appropriate amount of water, tighten the pump head and the bottle body, place them in a vacuum box on the side, maintain the corresponding atmospheric pressure, maintain for five minutes, observe whether there is water leakage.
The above experiments are more commonly used, as well as pump head rebound experiment, pump output experiment, etc. The results are good.