Principle and material of airless bottles
Some of the cosmetics that people use nowadays are vacuum cylinders that are pressed by people. They can be used only when they are pressed a few times, and then they can be accumulated in their palms. What principle can squeeze out the thing? What kind of bottle is the material? We need to know about it. If the airless bottle of cosmetics is squeezed, then it is necessary to have a better choice of the material of the bottle. It should not be easy to break. It is better to choose plastic material, it is not easy to break, and the pressure is to bear. It is also relatively strong. Generally speaking, the bottle containing cosmetics has a freely movable floor inside the bottle, and then slowly moves upwards during the use. When the contents of the bottle are almost exhausted, the tray will then be used. At a position closer to the top of the bottle. Open the lid again, then push the movable tray to the bottom. The bottle should be rinsed many times, because the skin care products need ...