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 to be clean, and then you can put in the cosmetics. If the pressure is not enough, you can try With a lot of pressing, then you can squeeze out the cosmetics more easily.

This is the principle that airless bottles are used to hold cosmetics. It should be better controlled during use. Do not let these things spill out. Be careful.

The airless bottle consists of a cylindrical ellipsoidal container plus a piston placed at the bottom. Its design principle is to use the contraction force of the spring, and not let the air enter the bottle, causing the vacuum state, and use the atmospheric pressure to push the piston of the bottom of the bottle to advance. It is the main category of packaging materials in cosmetics, and the requirements for the professionalism of the manufacturer are also very high.

1. Size control: All assembled products after cooling, the size is controlled within the tolerance range, and shall not affect the assembly function and hinder the packaging.

2. The outer cover and the inner cover should be assembled in place without any skewing or assembly.

3. The inner cover does not fall off when subjected to the tensile test of axial ≥ 30N;

4, the inner bottle and the outer bottle buckle position should be clamped in place, the degree of tightness is appropriate; the assembly tension of the middle and outer bottles is ≥ 50N;

5, the inner bottle and the outer bottle group should not have the friction inner wall phenomenon to prevent scratching;

6. The cover and the bottle body are smoothly rotated and have no stuck phenomenon;

7. The alumina parts are combined with the corresponding cover and the bottle body, and the tensile force after drying 24H is ≥50N;

8, the pump head press test spray feels smooth, there must be no blocking phenomenon;

9, the gasket is not less than 1N tensile force does not fall off;

10. After the specification cover is matched with the thread of the corresponding bottle body, the gap is 0.1~0.8mm.