A lot of cosmetic containers, cream and lotion bottles will use this kind of material. The material itself is not very penetrating, with a touch of abrasive effect. If you want to brighten it, you can only use technology to improve it, such as spraying, electroplating, etc., but usually choose this kind of material is the effect of itself. As a result, extra special processes are seldom used for processing.


It is commonly known as acrylic material. I believe many people have seen that a good acrylic looks like crystal, and then it is PETG, AS, PS, PET. The color of acrylic in the picture is because PMMA can not directly contact with the inner material, it will react, usually has an inner gallbladder, and the inner gallbladder usually uses PP. Material, at the same time can do a variety of processes, such as spraying (blue, yellow, red, etc.), electroplating (gold and silver, etc.). Most high-end cosmetics will use PMMA material.


The contents of the vacuum bottle can be isolated from the air, so as to avoid oxidative deterioration and bacterial growth of the product due to contact with the air, and to upgrade the product file with its high-tech concept. The popular vacuum bottle on the market consists of a cylindrical elliptical container and a piston at the bottom.


Its design principle is to use the contraction force of the spring, and not allow air into the bottle, resulting in a vacuum state, and use atmospheric pressure to drive the piston at the bottom of the bottle forward. But because the spring force and atmospheric pressure can not give enough force, the piston can not be too close to the bottle wall, otherwise the piston will not be able to advance because of excessive resistance; on the contrary, if the piston is easy to move forward and easy to leak material, the vacuum bottle has a very high requirement for the manufacturer's professionalism.


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