Plastic bags much to say let's contact in daily life, so let's use what method to identify plastic bags of raw material is PE or PVC?
here are a few about PVC plastic bags and PE bag difference tips, first is touching with the hand feels a sense of lubrication, surface coated with a layer of wax like (
Chemical called wax feeling)
, this is non-toxic polyethylene film bag, and polyvinyl chloride (PVC) film is feels some sticky.
There is vibration method, we can vibrate with the hand, if it sound crisp, and is qualitative easy floating polyethylene film bag.
And if we use hand trembling sound low for polyvinyl chloride (PVC) film bag.
there is also a is burning, if meet the fire inflammable, the flame is yellow, and burned it in the shape of paraffin oil dripping from time to tome, and a candle was burning gas, is non-toxic polyethylene film bag.
If it is not easy to burn, it's from the fire that is calm, green, and flame for polyvinyl chloride (PVC) film bag.
PVC plastic bags tend to be expensive, because most of them made a raincoat, quilt cover, etc.
It has a transparent appearance, texture and lubrication handle hard.
However, it cannot be used in the food retail career, thus no supermarket will use it to manufacture vest bag.
This is because it contains chlorine, and the human body for a long time contact with chlorine will form damage to the human body.
PE plastic bags is a kind of widely used on the market.
Look from the outside, PE plastic bags can be divided into two kinds: translucent, and opaque.
According to the classification of the density, and can be divided into two kinds of high density, in which low density PE plastic bags is flexible;
High density plastic bags more durable, and many supermarkets will provide customers with plastic vest bag.