Vacuum packaging technology is a new concept with advantages. This packaging technology has helped many new brands and new formulations go on the market. Once the vacuum packaging is assembled, from the filling of the package to the consumer's use, almost minimal air can enter the container, contaminating or decomposing the contents. This is the advantage of vacuum packaging - it provides a safe packaging for the product, avoiding contact with air, reducing the possibility of changes and oxidation, especially the need to protect and delicate natural ingredients, avoiding the addition of preservatives In the call for sound, vacuum packaging is even more important for extending the shelf life of the product.
Cosmetic containers are generally divided into five types, plastic bottles, glass bottles, hoses, vacuum bottles and color boxes. The material of plastic bottles is generally PP, PE, K material, AS, ABS, acrylic, PET, etc. Since it is now environmentally friendly and recyclable, the production cycle and production cost of plastic bottles are relatively cheap, so the plastic bottles on the market are currently on the market. The proportion is relatively large.
The use of glass bottles for cosmetics is mainly divided into: skin care products (creams, lotions), perfumes, essential oils, nail polishes, and other small types of small capacity, more than 200ml capacity is rarely used in cosmetics. The Airless Bottles is further divided into a wide-mouth bottle and a narrow-mouth bottle. The solid paste is generally a wide-mouth bottle. The aluminum cover or the plastic cover should be distributed, and the bottle cap can be used for color injection.
For emulsions or water-based pastes, narrow-mouth bottles are generally used. Pump heads should be used. Care should be taken to prevent springs and balls from rusting. Most of the pump heads are equipped with glass beads, which are usually used for material testing. Need to be equipped with inner plug, water agent with small holes and inner plug, thicker emulsion with large hole plug. The selection of glass bottles is more consistent, with more shapes, rich processing techniques, and a variety of bottle caps. Common bottle shapes are cylindrical, oval, flat, prismatic, and tapered.
The vacuum bottle is composed of an ellipsoidal container and a piston. By the force of the spring, the contraction force is used to prevent air from entering the bottle, and then the atmospheric pressure is used to advance the piston. However, we should pay attention to the fact that the contraction force between the piston and the bottle wall cannot be made too much, otherwise we are particularly difficult to advance. Of course, if you use special force to advance, it will also affect the normal use, and there will be leaks, so the requirements for the manufacturer are high. It can be said that the introduction of vacuum bottles has brought great convenience, especially for the women's cosmetics industry.
