A new container blow molding process has been widely used in packaging. For this new material, it can make dairy products have a longer shelf life, which has greatly attracted the attention of dairy manufacturers.
Plastic technology claims that the new process is particularly suitable for milk, drinking yogurt and other special dairy products. This new packaging can be applied to the dairy production line, so as to quickly improve the competitiveness of dairy manufacturers, so that they can produce more competitive products, and the changes they need to make are very small.
The company added that this container is very suitable for companies with organic positioning. They want the packaging performance properties to be free of additives. The new technology provides a 100% pet bottle with an opacity of up to 50% due to the introduction of foam - thus protecting the product from the negative effects of light. If more light protection is needed, the use level of traditional additives can be much lower.
It is said that the technology does not use additives that impair recyclability and can provide opacity. While providing opacity, the weight of the bottle is up to 6%. In order to protect milk and special drinks from ultraviolet rays and shorten the shelf life, additives such as titanium dioxide are usually added to HDPE or traditional PET containers. In addition to affecting the recycling process, these additives are expensive, which greatly increases the packaging cost.
Oxygen and carbon dioxide barriers can be added to the foam layer, which can be single-layer or molded. The introduction of foam takes place in the preform, so the preform can be centrally manufactured and distributed to the blow molding position. During the injection process, the supercritical gas is mixed into the polymer melt, and the preform is foamed.
All along, the innovation of dairy production line has been carried out, which may occur in the pretreatment equipment or in the innovation of packaging materials. This continuous technological innovation has promoted the development of dairy industry and brought earth shaking changes to food machinery and food packaging.