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The Basic Characteristics Of Plastic Bags
- Jul 21, 2017 -

Commonly used food plastic bags are made of polyethylene film, the film non-toxic, it can be used to hold food. There is also a film made of polyvinyl chloride, PVC itself is also non-toxic, but according to the use of the film added to the additives are often harmful substances, has a certain toxicity. So this kind of film and the plastic bags made by the film should not be used to dress food. To identify PVC plastic bags and polyethylene plastic bags, the following simple method can be used to identify.

Polyethylene film (non-toxic)

Thin film was milky white, translucent (several layers stacked observation is particularly evident), feels more lubrication, as if the surface coated with wax layer, forced jitter, sound crisp, fire flammable, yellow flame, burning dripping , And the smell of candles burning.

Polyvinyl chloride film (generally toxic)

If you do not add pigment, transparent, feels the surface of some sticky, forced jitter, the sound is low, the fire is not easy to burn, from the flame that is extinguished, the flame was green.