Some of the cosmetic bottles that people use nowadays use Airless Bottles that can be squeezed. It can be pressed at the time of use, which is very convenient. 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 ingredient in cosmetics.
If the vacuum bottle of cosmetics is squeezed, then it is necessary to have a better choice of the material of the bottle. It should not be easily broken. It can be made of plastic material, it is not easy to break, and the pressure is also compared. 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.
Appearance: cosmetic container vacuum bottle, emulsion bottle cap should be complete, smooth, no cracks, burrs, deformation, oil stains, shrinkage, clear and full thread; vacuum bottle, lotion bottle body should be complete, smooth, smooth, bottle mouth straight, smooth The thread is full, no burrs, holes, no obvious scars, stains, deformation, and there is no obvious misalignment of the mold line. Transparent bottles should be clear and clear.
Outer packaging: The packaging carton should not be dirty or damaged. The box should be lined with plastic protection bag. The easy-to-scratch bottle and cover should be packaged to avoid scratches. Packed in a fixed number of boxes, sealed with tape "work", not mixed. Each batch of shipments is accompanied by a factory inspection report, and the contents of the outer box identification, name, quantity, date of manufacture, manufacturer, etc. must be clearly identifiable.
