The vacuum 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.
Cosmetics plastic container vacuum bottle if it is squeezed, then you need a better choice of the material of the bottle, it should not be easy to break, so you can choose plastic material, not easy to break, and the pressure 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 washed out 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 A lot of pressing a few times, then you can squeeze out the cosmetics more easily.
This is the principle that vacuum bottles are used to hold cosmetics. It should be better controlled during use. Do not let these things spill out. Be careful.
The vacuum-packed product is different from the standard suction pump or the standard pump. The vacuum packaging uses the principle of separating the inner cavity to squeeze the contents out. When the inner membrane moves up to the inside of the bottle, a pressure is formed, at which time the contents are present in a vacuum close to 100%. Another vacuum method is to use a vacuum pouch placed inside a rigid container, the concept of which is almost the same. The former is widely used and is an important selling point for the brand because it consumes less resources and can be considered as “green”.
Vacuum packaging also provides precise dose control. When the discharge orifice and the specific vacuum pressure are set, the amount is accurate and quantitative regardless of the matching head shape. Therefore, the dosage can be adjusted by changing a part, from a few microliters or a few milliliters, depending on the needs of the product.
More: Airless Bottles
