Vacuum Flask Basics

This is another article that needs to be read carefully and remembered carefully. It seems that there is no end to the knowledge points of cosmetic packaging materials. You see, there are lipstick tubes, lotion bottles, powder boxes, and dozens of types of cosmetic packaging materials that need to be read and memorized. Moreover, different materials and processes will extend new knowledge points. Therefore, in the cosmetic packaging industry, we still need to continue to learn to make progress.

The basic knowledge of hoses was introduced some time ago. If you forget, you can go back and take a look. Today, I will talk about one of the popular packaging products: vacuum bottles.

Speaking of vacuum bottles, I have made a brief introduction in the article “Cosmetic packaging knowledge: vacuum bottle introduction”. The contents of the vacuum bottle can be completely isolated from the air to prevent the product from oxidizing and deteriorating due to contact with the air, and breed bacteria, and improve the product grade with its high-tech concept. The vacuum bottle commonly used in the market is composed of a cylindrical ellipsoidal container and a piston placed at the bottom. Its design principle is to use the contraction force of the spring and prevent air from entering the bottle to create a vacuum state, and use atmospheric pressure to push the piston at the bottom of the bottle forward. However, since the spring force and atmospheric pressure cannot provide enough strength, the piston cannot fit too tightly against the bottle wall, otherwise the piston will not be able to rise and move forward due to excessive resistance; conversely, if the piston is to move forward easily, leakage is likely to occur. Therefore, the vacuum bottle has very high requirements on the professionalism of the manufacturer.

Vacuum Packaging Technology

Vacuum packaging technology is a new concept with absolute advantages. This packaging technology has helped many new brands and new formulas to be successfully launched. Once the vacuum packaging is assembled, from filling the package to the consumer’s use, almost no air can enter the container and contaminate or decompose the contents. This is the advantage of vacuum packaging – it provides a safe packaging space for the product, avoiding contact with air, reducing the possibility of change and oxidation, especially for natural ingredients that are in urgent need of protection and are delicate. In the call to avoid adding preservatives, vacuum packaging is even more important for extending the shelf life of products.

Vacuum-packed products are different from the common standard straw-type pumps or spray pumps. Vacuum packaging uses the principle of separating the inner cavity to squeeze out the contents. When the inner membrane moves up to the inside of the bottle, a pressure is formed, and the contents are in a nearly 100% vacuum state. Another vacuum method is to use a vacuum soft bag placed inside a hard container. The concept of use of the two is almost the same. The former is widely used, which is a very important selling point for brands, because it consumes less resources and can also be considered “green and environmentally friendly”.

Vacuum packaging also provides precise dosage control. When the discharge hole and specific vacuum pressure are set, no matter what the matching pressure head shape is, each dosage is accurate and quantitative. Therefore, the dosage can be adjusted by changing a certain part, from a few microliters to a few milliliters, depending on the needs of the product.

Product preservation and hygiene are the key values ​​of vacuum packaging. Once the contents are taken out, there is no way to put them back into the original vacuum packaging. Since the design principle is to ensure that each use is fresh, safe and worry-free, our product internal structure has no concerns about spring rust and will not contaminate the contents.

Consumers’ cognition also invisibly affirms the value of vacuum products. Compared with general standard pumps, sprays, straws, and other packaging components, vacuum packaging is smooth to use, has a fixed dosage, and has a high-end appearance, making it occupy a large market of luxury products.