Knowledge of cosmetic packaging materials: Introduction to vacuum bottles

The previous article introduced the knowledge of glass bottles for cosmetic packaging. I believe that everyone has a certain preliminary understanding of cosmetic packaging materials. However, there are many types of cosmetic packaging materials. There is still a long way to go on the road of learning. You need to continue to persevere. Today, let’s learn some knowledge points about vacuum bottles.

Vacuum bottle refers to a container that can isolate gas from the outside temperature or isolate external bacteria. Its contents can be completely isolated from the air to prevent the product from oxidizing and deteriorating due to contact with the air, breeding bacteria, and improve the product grade with its high-tech concept. The vacuum bottle commonly used in the market consists 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 power, the piston cannot fit too tightly with the bottle wall, otherwise the piston will not be able to rise and move forward due to excessive resistance; on the contrary, if the piston is to move forward easily, it is easy to leak, so the vacuum bottle has very high requirements for the professionalism of the manufacturer.

Cosmetic packaging knowledge: vacuum bottle introduction

The introduction of vacuum bottles conforms to the latest development trend of skin care products and can effectively protect the freshness and quality of products. However, due to the complex structure and high cost of vacuum bottles, the use of vacuum bottle packaging is limited to a limited number of categories of products and cannot be fully rolled out in the market to meet the needs of skin care packaging of different grades.

While paying attention to the protective and decorative properties of cosmetic packaging materials, manufacturers have begun to focus on the development of the functionality of skin care packaging, making the product’s “fresh”, “natural” and “preservative-free” concepts worthy of the name.

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 packaging to the consumer’s use, almost negligible 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 changes and oxidation, especially for natural ingredients that are in urgent need of protection and delicate. In the call to avoid adding preservatives, vacuum packaging is even more important for extending the shelf life of the product.

Vacuum packaging is different from the common standard straw pump or spray pump. Vacuum packaging uses the principle of separating the inner cavity to squeeze out the contents. When the inner membrane moves upward 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 and place it inside a hard container. The concept of use of the two is almost the same. The former is widely used and is an important selling point for brands because it consumes less resources and can be considered “green and environmentally friendly”.

Vacuum packaging also provides precise dosage control. When the discharge hole and the 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 product needs. 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, the internal structure of our products does not have the worry of spring rust, and will not contaminate the contents.

The packaging styles of vacuum bottles vary, and each customer has different preferences. Customers can choose the corresponding vacuum bottle style according to the consumption level and population of the brand positioning. Generally, the price of vacuum bottles will be relatively high, and there will be differences due to different styles. Customers can choose appropriately according to brand positioning!