The application of zeolite in packaging films is mainly due to their strong adsorption capacity, which can effectively adsorb molecules such as moisture, ammonia, hydrogen sulfide, sulfur dioxide, and carbon dioxide, thereby keeping the contents of the package dry and stable. This adsorption capacity makes zeolites widely used in packaging industry.
Food Packaging Film
Packaging film has transformed the industry in recent years and has found its way into almost all industries. There are different types of packaging films that cover the needs of all businesses. Food and beverages, pharmaceutical and medical products, heavy items and machinery, consumer equipment and thousands of other goods are packaged with all kinds of films.
Various types of polymer composites are being used as food packaging materials, such as polyolefin, polyester, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, and ethylene vinyl alcohol. And the most popular food packaging film, is usually made of ethylene as the masterbatch through polymerization reaction, such as PE, PVC, PVDC, etc.
Zeolite in Food Packaging Films
The main function of a packaging film is to protect foods from external destructive factors, to controll the concentration of gases in the atmosphere around the food, and to provide customers with information about the ingredients and nutritional value of the food inside the package.
As a highly efficient adsorbent, synthetic zeolites are widely added in the packaging films. The presence of zeolite can improve the performance of the packaging film, so as to better protect the freshness of the food.
Specifically, the application of zeolite in food packaging films includes the following aspects:
- Improve the preservation effect: By adding zeolite into the packaging film, bad odors and moisture in food can be absorbed, thereby reducing the oxidation and corruption of food and maintaining the freshness and taste of food.
- Extend the preservation period: The addition of zeolites can adjust the air permeability and moisture permeability of the packaging film, so that food can remain fresh for a longer time and reduce the loss of food during storage and transportation.
- Improve mechanical properties: The modified zeolite can improve the flexibility and ductility of the packaging film, enhance its comprehensive mechanical properties, and make the packaging film more durable during use.
- Environmental protection and safety: Using zeolites as additives for packaging film is not only environmentally friendly and non-toxic, but also can reduce the use of chemical preservatives, which meets the requirements of food safety and environmental protection.
Zeolite Products for Packaging Films
In the research of developing zeolite as an additive for the packaging industry, SNOWPEAK focuses on making the method of producing films containing zeolite more economical and operational, so that the film, in addition to its low thickness, also prevents zeolite particles from clumping in the film and has a uniform structure. Here linked some SNOWPEAK self-synthesized zeolites for packaging films:
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