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The manufacturer of PVC cling film production line stated that cling films and bags are commonly used plastic packaging products for food preservation, and many families cannot do without them. Due to the production process requirements, PVC cling film will add a large amount of plasticizer, which is commonly referred to as plasticizer. If PVC plastic wrap is heated or used in contact with fatty foods, the plasticizers contained in PVC plastic wrap can easily precipitate. As food enters the human body, it can cause certain harm to the human body, and even cause cancer. However, for fresh fruits and vegetables, PVC plastic wrap is no problem.
The difference between PVC and PE cling film:
The manufacturer of PVC cling film production line stated that the significant feature of PE cling film is that PE cling film is widely used and can be used to wrap fatty foods. At the same time, PE cling film can also be heated in a microwave oven at a temperature not exceeding 110 degrees Celsius. In addition, tips for distinguishing different types of plastic wrap:
1. Look at transparency. PE film has poor transparency, while PVC film has good transparency.
2. Pull the experiment. PE cling film has low tension, while PVC cling film has high tension.
3. Fire experiment. PE cling film is easy to burn, drips oil, and has a candle odor; PVC cling film emits black smoke and produces a pungent odor.
4. PVC cling film adhesive is much stronger than PE cling film.
The manufacturer of PVC cling film production line stated that due to the fact that PVC cling film is cheaper than other cling films, many families still choose PVC cling film. In fact, as long as PVC cling film is not heated and does not come into contact with greasy food, it is not a problem to only use it for preserving fruits and vegetables.
Most of the plastic wrap and commonly used plastic bags sold on the market are made from ethylene masterbatch. According to the different types of ethylene masterbatch, PVC cling film production line manufacturers indicate that cling films can be divided into three categories.
One type is polyethylene, abbreviated as PE. This material is mainly used for food packaging. The film we usually buy for fruits and vegetables, including semi-finished products purchased in supermarkets, is made from this material.
The second is abbreviated as polyvinyl chloride (PVC). This material can also be used for food packaging, but it has a certain impact on human safety.
Thirdly, it is polyvinylidene chloride (PVDC), mainly used for packaging some cooked food, ham and other products.