What Are The Requirements for Material Selection for Food Blister Packaging?

The material selection of food blister packaging should comprehensively consider the requirements of chemical stability, physical and mechanical properties, barrier properties, temperature resistance, environmental protection and safety, transparency and appearance, and cost-effectiveness. Common food blister packaging materials include polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), polyester (PET), etc. These materials have their own characteristics and can be selected according to specific application scenarios and needs.

Common materials: PET (polyethylene terephthalate): high transparency, widely used in beverage bottles and food trays. PP (polypropylene): high temperature resistance, suitable for microwave food. PS (polystyrene): commonly used in disposable tableware, but it should be noted that styrene may be released at high temperatures. HDPE (high-density polyethylene): corrosion-resistant, used for dairy product packaging.

The selection of the "inner core" of food blister packaging hides invisible details. Safety is the bottom line. Materials must pass strict food contact certification, with "zero hidden dangers" from production to degradation, and no harmful substances such as plasticizers and bisphenol A. Functionality must be tailored to the needs of the customer. Fresh meat requires EVOH composite materials with high oxygen barrier, dry goods rely on HDPE's dense "armor" for moisture resistance, and microwave-heated lunch boxes cannot do without high-temperature resistant PP materials. Under the current trend of environmental protection, recyclable PET, PP and degradable plant-based PLA have become new favorites, which can withstand transportation bumps and reduce environmental burdens. Good packaging must not only make consumers feel at ease, but also make companies smart. Only by choosing the right materials can every bite of safety and quality be "perfectly matched."