Summary:After the cosmetic pump head is produced, its qualification ...
After the cosmetic pump head is produced, its qualification must be checked uniformly. The production sample can be put into production after it is qualified, and then put on the market for use. Unqualified products need to be recycled and re-produced. How to check whether the cosmetic pump head is qualified? Woolen cloth?
1. Heat and cold resistance test
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 the incubator for 24 hours. This is a heat resistance test. It is a cold tolerance test.
2. Appearance inspection
Under natural light, observe the integrity of the pump head at a distance of 30-40CM, including color, whether the pump head is smooth or not, whether there is obvious damage, cracks, etc.
3. Strictness inspection
Put an appropriate amount of water in the matching bottle, tighten the pump head and the bottle body, place it in a vacuum box, maintain the corresponding atmospheric pressure for five minutes, and observe whether there is water leakage.
The above experiments are more commonly used, as well as the pump head rebound experiment, the pump output experiment, etc., the effect is good.