1. Product definition

The vacuum bottle is a high-grade packing bottle that is composed of a cap, a pressure head, a cylinder or an ellipsoid container, a bottle body, a base, and a piston which is arranged at the bottom of the inner part of the bottle body. Its launch conforms to the latest development trend of skin care products, and can effectively protect the fresh quality of products. However, due to its complicated structure and high cost, the use of vacuum bottle packaging is limited to a few categories of products, and can not be fully rolled out in the market to meet the needs of different grades of skin care products packaging.

2. Design Features

The design principle of the vacuum bottle is to use the shrinking force of the spring, and not allow air to enter the bottle, resulting in a vacuum state. The vacuum packaging uses the principle of separating the inner cavity to squeeze the contents out, using atmospheric pressure to propel the piston at the bottom of the bottle. When the inner membrane moves up to the inside of the bottle, creating pressure, the contents are in a vacuum close to 100%, but can not be given enough force due to the spring force and atmospheric pressure, therefore, the piston can not be too close to the wall of the bottle, or the piston will be too much resistance and can not rise forward, on the contrary, if the piston easy to move forward and prone to leakage, therefore, the vacuum bottle on the production process of professional requirements are very high.

3. Product Features

Vacuum packaging also provides precise dosage control. When discharge holes and specific vacuum pressure are set, each dosage 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 milliliters, all according to the demand of the product.

Once the vacuum packaging is assembled, the self-filling packaging to the consumer use process, almost minimal air can enter the container, pollution or decomposition of the contents. This is the advantage of vacuum packaging-it provides a safe packaging vacuum for products, avoiding contact with air, reducing the possibility of change and oxidation, especially the need to protect the precious natural ingredients, in the call to avoid adding preservatives, vacuum packaging for extended product shelf life is more important.

4. Structural Overview

（1）Product Classification

According to the structure: ordinary vacuum bottle, rotary vacuum bottle, connecting vacuum bottle, double tube vacuum bottle

Divided by shape: cylindrical, square, to cylindrical most common

Vacuum bottle is usually cylindrical, with specifications of 15ml ~ 50ml, and some have 100ml, the overall capacity is small, by the principle of atmospheric pressure, can avoid cosmetics in the use of the process of pollution, vacuum bottles have anodized aluminum, and plastic plating and non-ferrous plastic, the price is more expensive than other ordinary containers, ordinary order requirements are not high.

（2）Product structure reference

（3）The reference of structure supporting diagram

The pump head is the main part of the vacuum bottle, generally, it includes the cover, nozzle, connecting rod, Gasket, piston, spring, valve, pump body, straw, valve ball (steel ball, glass ball), and so on. Bottle Cap, the dust-proof cap can be colored, electroplated, and set on an anodized ring. Because a set of pump heads is involved in the mold more, order a larger amount of 10,000 ~ 20,000, supply time confirmation sample after 15 days ~ 20 days, white and general-purpose stock. Distributor customers rarely open their own mold, to mold more, the cost is higher.

（4）Other types of vacuum bottles

The full plastic self-closing valve vacuum bottle is a bearing disc that can move up and down in the bottle body. The bottom of the vacuum bottle body is provided with a round hole, the air is under the disc, and the skin care product is above the disc. The skin care product is sucked out from the top by the pump, while the carrying disc rises continuously. When the skin care product is exhausted, the disc rises to the top of the bottle's body.

5. Key points of purchasing

Vacuum pump testing

Vacuum pumps require these components: springs, sealing valves (or ball seals), pistons, and pump body enclosures (the size of which determines the amount of pumping each time). The difficulty of the vacuum pump is with the sealing performance of the various parts, because the requirements of high air tightness, so the mold, parts of the requirements are relatively high, otherwise, it is easy to produce the material can not press out.

Air tightness of vacuum bottle

The friction between the inner piston and the cylinder is very important to the air tightness. The friction is the core of the vacuum cylinder. It is not only about the air tightness but also about the up and down motion of the piston. So pay attention to this, too.

Judge the quality of vacuum bottle

Filling to ensure that the material did not pass the lower edge of the cylinder pump number stability, output stability, and air tightness test conditions mpa. 10 minutes or so, positive and side-put two, whether the stability of the energy bottle material spray