Do You Know How Many Ways To Tell If Stretch Film Is Toxic?

Stretch film is now in use as a packaging supplies. The main raw material of this packaging supplies is plastic. Not all stretch films are toxic, so we should choose regular manufacturers to produce quality assurance. Do you know how to distinguish whether stretch films are toxic? The following winding film manufacturer Xiaobian and you tell about
We know that plastic is toxic, but not all plastic is toxic. The PE material we use to make wrap film is a non-toxic material, but some wrap film manufacturers use PVC material to make it, which is a toxic substance.
1. Smell
Smell is a very direct discrimination method. Usually, when we smell the wound stretch film made of PE material, we will not smell very strong odor. On the contrary, we may smell a kind of aroma that makes the wound stretch film more acceptable. And when you smell the winding stretch film made of PVC material, you will smell a very pungent plastic smell, even the use of additives or other aromatics can not completely cover up the plastic smell.
Second, cut a small piece of the winding stretch film and then burn it on the alcohol lamp to observe the burning phenomenon. Generally, cheap PVC is used for toxic winding film, which is not flammable and will be extinguished immediately after the fire, the bottom of the flame is green, the flame tip is yellow, and the ammonia smell of hydrochloric acid gas will be extinguished. Poor quality can also be clearly seen black smoke; The winding stretch film made of PE material is a kind of flammable winding film. It will keep burning after it is removed from the fire, but the flame at the bottom of the burning is blue, and the flame tip is slightly yellow. When it burns, there will be melting dripping and a paraffin smell.