Level 1 Material PET Food Blister Packaging
It is often used to make plastic boxes, beverage bottles and other products. The transparent fruit boxes and cake boxes that people often buy are packaging products made of PET sheet blister, which is a food-grade safe plastic material. It is only suitable for warm and cold drinks, but the substances dissolved at high temperature are harmful to the human body.
Level 2 material HDPE food packaging
High-density polyethylene has higher operating temperature, hardness, mechanical strength and good chemical resistance. It is mostly used to carry cleaning supplies, bath products, plastic bags in supermarkets and shopping malls. These containers are usually difficult to clean and are not clean, so it is best not to use them again.
Level 3 material PVE food blister packaging
Polyvinyl chloride, products made of this material are rarely used for packaging food. One is the single molecule vinyl chloride that has not been fully polymerized during the production process, and the other is the substances in the plasticizer, which are all toxic and harmful substances. In 2017, the World Health Organization and the International Agency for Research on Cancer announced that polyvinyl chloride is on the list of Class 3 carcinogens.
Level 4 material LDPE food packaging
Commonly known as low-density polyethylene, products made from it are tasteless, odorless, non-toxic and matte. Commonly used in plastic parts for food, composite films for food packaging, food cling film, plastic packaging for medicine and pharmaceuticals, etc. If the food is to be placed in a microwave oven, the plastic wrap should be removed first, otherwise the plastic wrap will melt when the temperature exceeds 110°C, leaving harmful substances that cannot be decomposed by the human body.
Level 5 material PP food blister packaging
Polypropylene can be made into any plastic packaging for food, such as food-specific plastic bags, food plastic boxes, food straws, etc. PP is the only plastic that can be heated in a microwave oven, and has high-strength folding resistance, 50,000 times-20 It will not be damaged if dropped from high altitude at ℃. Food-grade PP sheets are commonly used in quick-frozen dumplings and microwave-heated food packaging, and can be reused.
Level 6 material PS food blister packaging
Polystyrene is often used to make bowls of instant noodle boxes, fast food boxes, disposable food packaging boxes, etc. It has good cold resistance. Food-grade PS sheets are commonly used in containers such as yogurt cups. However, if the temperature of this material is too high, it will easily release chemicals, so it is best not to use it to pack hot food.
Level 7 material PC food packaging
Polycarbonate is the most widely used material and is mostly used to make baby bottles, space cups, etc. It should be noted that PC easily releases the toxic substance bisphenol A when exposed to high temperatures, which is harmful to the human body. Do not heat when using and do not expose to direct sunlight.
