If the vacuum bottle of cosmetics plastic container is extruded, then it needs to have a better choice of the material of the bottle, which should not be easy to break, good is to be able to choose plastic material, not easy to break down, and the pressure is relatively strong. Generally speaking, bottles containing cosmetics will have a free space inside the bottle, then slowly move upward in the process of use, until the bottle is almost used up, then the tray will be closer to the top of the bottle.
Open the lid again, then push the tray that can be moved to the bottom, should wash the bottle many times, because skin care products need to be cleaner, and then you can put in cosmetics, if the pressure is not high enough, then you can try to press a few more, and then you can squeeze more easily. Come out with cosmetics.
This is the principle that vacuum bottles are used to fill cosmetics. It should be well controlled in the process of using them. Don't let these things burst out. Be careful to operate them.
The vacuum packed products are different from the standard suction pumps or spray pumps commonly used. Vacuum packaging uses the principle of separating the inner cavity and squeezing out the contents. When the inner diaphragm moves upward to the inside of the bottle, forming a pressure, the content is in a vacuum state of nearly 100%. Another way of vacuum is to use a vacuum soft bag and place it inside a rigid container. The two concepts are almost the same. The former is widely used, which is an important selling point for the brand, because it consumes less resources and can be considered as "green environmental protection".
Vacuum packaging also provides accurate dosage control. When the discharge hole and the specific vacuum pressure are set, the dosage is accurate and quantitative, regardless of the shape of the matching press head. Therefore, the dosage can be adjusted by changing a part, from a few milliliters or milliliters, according to the needs of the product.
We can finish all the processes inside our own facility from mold design, tooling making, injection, bottle blowing, spraying, silk screen, hot stamping, vacuum metallization , digital printing, laser etching, ultrasonic welding to final assembling.