[Chinese Packaging Network News] commonly used food packaging plastic bags are mostly made of polyethylene film, the film is non-toxic, it can be used to hold food, there is a film made of polyvinyl chloride, polyvinyl chloride itself is also non-toxic, However, additives added according to the use of the film are often substances harmful to the human body and have a certain degree of toxicity. Therefore, such films and plastic bags made from the films are not suitable for containing foods. The following describes how to determine the material of the plastic bags:
1. Polyethylene film (non-toxic): The film is milky white, semi-transparent (observed especially when stacked together), it feels more lubricated, as if the surface is coated with a layer of wax, hard to shake, sound crisp, flammable in case of fire The flame is yellow, there is a sticky drop when burning, and there is an odor when the candle burns. Such as: PE
2. PVC film (generally toxic): If it is not added with pigment, it is transparent, and it feels a little sticky on the surface. It is hard to shake and the sound is low. When it is in a fire, it is not easy to burn. It is extinguished from the flame and the flame is green. For example: PVC
3. The type of plastic bag:
(1) High-pressure polyethylene plastic bags
(2) Low pressure polyethylene plastic bags
(3) polypropylene plastic bags
(4) PVC plastic bags
(5) Types of plastic bags for plastic bags: Plastic bag materials: HDPE plastic bags, LDPE plastic bags, EVA plastic bags, CPE plastic bags, PPE plastic bags, OPP plastic bags, PP plastic bags, PVC plastic bags, etc.
The General Office of the State Council issued the Notice on Restricting the Use of Plastic Plastic Bags for Production and Sales. The notice requires that all supermarkets, shopping malls, and bazaars and other retail establishments implement the system of paid use of plastic plastic bags. All plastic plastic bags shall not be provided free of charge. Plastic bags must be clearly marked and separately collected. The circular stipulates that retail outlets for goods must not be provided free of charge or plastic plastic bags must be included in the total price of goods. At the same time, the relevant departments will formulate specific management measures for the use of plastic bags in retail stores, and gradually form a market environment for the use of plastic bags.