When selecting an anti-blocking masterbatch for the blown film, it is necessary to understand the difference between ordinary and food-grade anti-blocking masterbatch. Ordinary anti-blocking masterbatch is generally used for manufacturing plastic products that do not come into contacts with food, such as hangers and pencil cases. This type of anti-blocking masterbatch is relatively low in cost but is not suitable for plastic products that come into contact with food. Ordinary anti-blocking masterbatch may contain harmful substances such as benzene, toluene, xylene, and other volatile organic compounds, which may contaminate food.
In contrast, a food-grade anti-blocking masterbatch is a safer and more environmentally friendly option. This type of anti-blocking masterbatch is usually produced from food-grade raw materials, does not contain any harmful substances, and complies with relevant national standards and regulations. Therefore, if you need to manufacture plastic products that come into contact with food, it is recommended to choose a food-grade anti-blocking masterbatch.