Packaging industry white masterbatch: From food packaging to daily chemical packaging

Food packaging white masterbatch

For food packaging, the safety attributes of the white masterbatch are given top priority. The raw material components are strictly controlled, and it is suitable for packaging products that come into direct or indirect contact with food, such as food films, lunch boxes, and preservation containers. This grade of white masterbatch has high purity, low risk of leaching, and is stable in heat resistance during the processing, without affecting the heat sealing performance. At the same time, it is finely dispersed, with no crystal points or white spots after film formation, uniform color, and takes into account both covering effect and compliance requirements, meeting food contact-related regulations. It has low odor and is suitable for high-temperature sterilization, hot filling, and other downstream processes, ensuring the safety of packaging use.

Daily chemical packaging white masterbatch

Daily chemical packaging includes categories such as shampoo bottles, mask bags, and storage hoses, and pays more attention to appearance texture and light-blocking protection performance. Daily chemical white masterbatch has outstanding covering performance, can cover the contents, store in a dark place, and delay the deterioration of raw materials. The formula also takes into account the chemical resistance characteristics, and is not prone to color change or migration when in contact with daily care raw materials. At the same time, it is suitable for various molding processes such as injection molding, blow molding, and extrusion, has stable whiteness, good printing adaptability, can support brand appearance design, and meets the requirements of stable batch production.

Selection summary

The core difference between the two types of white masterbatches lies in the focus of the formula: food packaging prioritizes safety and compliance, strictly controlling the additive system; daily chemical packaging focuses on covering, medium resistance, and appearance effect, while also considering market display requirements. When selecting, it is not allowed to mix randomly. For food packaging, the corresponding compliant grade must be selected, and for daily chemical packaging, it can be chosen based on the container shape and content characteristics. At the same time, the white masterbatch should be matched with the base material type, processing method, and product thickness to avoid dispersion problems, color differences, and leaching issues, ensuring stable packaging quality. 

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