The hottest fresh-keeping film containing plastici

Is plasticizer contained in fresh-keeping film harmful to human body? Scientific use is the key

fresh keeping film is a common assistant for fresh-keeping food, but the statement that there are harmful substances in fresh-keeping film, which will deform and affect human health after a period of time has aroused consumers' doubts. How to use fresh-keeping film scientifically has become a matter of concern

there are three kinds of fresh-keeping films in China's domestic market:

the first is polyethylene, abbreviated as PE. This material is mainly used for food packaging, and this is the household fresh-keeping film sold on the market

the second is polyvinylidene chloride, PVDC for short. It has good oxygen barrier and long preservation time. It is mainly used for the packaging of cooked food, ham and other products. However, the price of this kind of material is relatively high and the manufacturing process is difficult, so there are few such fresh-keeping films on the market

the third kind is called polyvinyl chloride, or PVC for short, which is processed by adding a large amount of plasticizer (DHEA) and other additives to PVC resin. This kind of fresh-keeping film is mostly used in supermarkets to purchase and package food. PVC fresh-keeping film has good transparency, is not easy to crack, has good viscosity, and the price is low. (3) Hopper: there is a cutting device at the bottom of the hopper

is the plastic film containing plasticizer harmful to human body

people's concerns about the fresh-keeping film mainly focus on the plasticizers added to the fresh-keeping film, such as DEHA (DI (2-ethylhexyl) adipate), DEHP (DI (2-ethylhexyl) phthalate), which are believed to cause premature puberty, infertility, etc. The dosage of plasticizer required for the above three membranes is PVC, PVDC and PE. In other words, PVC fresh-keeping film needs to add more plasticizers

plasticizers have various types and different toxicity. For example, the toxicity of DEHA is very low, and DEHP is facing great development opportunities in animals. In the experiment, relatively low doses (60 195mg/kg/d) show slight changes in organ coefficient and potential carcinogenic effects. For this reason, the "Hygienic standard for the use of additives for food containers and packaging materials" has different provisions for the two: the specific migration amount of DEHA shall not exceed 18mg/kg; The specific migration amount of DEHP shall not exceed 1.5mg/kg. DEHP can only be used in contact with non fatty food materials and shall not be used in baby food materials. Therefore, as long as they are produced according to national standards and used according to the tips of merchants, plastic wrap products are generally safe