LGLPAK has been focusing on plastic products, and plastic wrap is a conventional product.
Cling film is a kind of plastic packaging product, usually made by polymerization reaction with ethylene as the master batch.
Cling film can be divided into three categories:
the first is polyethylene, referred to as PE;
the second is polyvinyl chloride, referred to as PVC ;
The third is polyvinylidene chloride, or PVDC for short.
Microwave food heating, refrigerator food preservation, fresh and cooked food packaging and other occasions, in the field of family life, supermarket stores, hotels and restaurants, and industrial food packaging, most of the plastic wrap and commonly used plastic bags sold on the market are made of Ethylene masterbatch is the raw material.
According to different types of ethylene masterbatch, cling film can be divided into three categories.
The first is polyethylene, or PE for short. This material is mainly used for food packaging. The film we usually buy for fruits and vegetables, including the semi-finished products purchased from the supermarket, are all used for this material;
The second type is polyvinyl chloride, or PVC for short. This material can also be used for food packaging, but it has a certain impact on the safety of the human body;
The third type is polyvinylidene chloride, or PVDC for short, which is mainly used for the packaging of cooked food, ham and other products.
Among the three kinds of plastic wrap, PE and PVDC plastic wrap is safe for the human body and can be used with confidence, while PVC wrap contains carcinogens and is more harmful to the human body. Therefore, when purchasing plastic wrap, Non-toxic should be used.
From a physical point of view, the cling film has moderate oxygen permeability and moisture permeability, adjusts the oxygen and moisture content around the fresh-keeping product, blocks dust, and prolongs the fresh-keeping period of the food. Therefore, it is necessary to choose different plastic wraps for different foods.
After understanding, everyone should pay attention to choice when choosing cling film in daily life to avoid toxic substances.
Post time: Oct-30-2020