Application Notes commonly used plastic food bags, mostly made of polyethylene film, the film is non-toxic, it can be used to hold food. There is also a thin film is made of polyvinyl chloride, polyvinyl chloride itself is non-toxic, but the film according to the use of the added additives are often harmful substances, has some toxicity. So this kind of film, and the film made from plastic bags are not suitable for containing food. To identify the PVC and polyethylene plastic bags, available in the following simple method of identification. Polyethylene film (non-toxic) film is milky white, translucent (several stacked observation is particularly evident), feels relatively smooth, as if painted on the surface layer of wax, hard shake, the sound crisp, fire flammable, flame yellow When mucus dripping burning and the smell of burning candles. PVC film (generally toxic) If you do not add pigment, is transparent, the surface feels somewhat sticky, hard shake, low voice, easy to burn a fire, that is, away from the flame extinguished, the flame was green. When loading food use special food bags, must not be used indiscriminately, in use should pay attention to the following points: 1. solvent contact with ethanol and ether and other PVC products will precipitate the lead, so storage of alcoholic products with PVC Food is very inappropriate. 2. In the case of oil, PVC food which will be integrated into the lead in food, so it is not suitable for packaging oily foods. There will be a slow precipitation HC 3. PVC using a temperature higher than 50 ℃, this gas harmful to human health. 4. The waste plastic recycling products, due to raw material sources of complexity inevitable with toxic ingredients, nor for food packaging. 

keywords: Plastic, non-toxic, precautions,