Must the wallpaper that smokes after it is lit not be environmentally friendly?

China Coatings network
: consumer awareness of environmental protection is increasingly attached, which also stimulates most enterprises to strive to produce environmental wallpaper, but also gave birth to a lot of environmental protection wallpaper. In the market, sales staff in order to prove that their wallpaper is environmentally friendly wallpaper, generally by burning two kinds of wallpaper to compare. So the problem is, black smoke wallpaper must not be environmentally friendly?
some merchants selling wallpaper asked the guide to do a wallpaper burning demonstration. They prepared two kinds of wallpaper in advance, one is the so-called un-environmental wallpaper, that is, the market often referred to pvc wallpaper, the other is pure wallpaper. When demonstrating the burning of plain paper wallpaper, white smoke is released, which smells mildly burning, while when the pvc wallpaper is lit, black smoke is coming from the smell of plastic burning. Consumers on the credulity of white smoke is certainly environmentally friendly, another is certainly inferior products, mistakenly thought pvc (PVC) toxic, in fact, this practice is nothing more than a conversion concept, as if the sale of cotton burning fiber cloth proved harmful.
the truth is that the so-called smoke is nothing more than carbon particles produced by PVC for full combustion in the air; The odor comes from the trace amount of HCL produced during combustion, which is what we often call hydrochloric acid. Secondly, PVC (PVC) is a polymer, itself non-toxic; Toxic, PVC monomers are used as raw materials for the production of PVC. As long as the control of vinyl chloride monomer residues in polymers, that is, PVC per kilogram ≤1.0mg (wallpaper harmful substances limit international GB18585-2001 and the food industry GB9681 "food packaging PVC molding products hygiene standards" prescribed values), there is no harm to the human body.
In the production of PVC wallpaper, PVC experiences a process high temperature environment in which the coating, printing and flowering sections are three times greater than 90 degrees C (120 degrees C-210 degrees C), and the vinyl chloride monoliths that remain in the PVC are basically volatile. PVC and resin (PVC) are one of the most common chemical products and one of the environmentally friendly (protecting natural forest resources) materials used by the United Nations in recent years, such as cling film, drinking water buckets, toys, paint skins for LV handbags, water pipes and so on.
paper wallpaper and PVC wallpaper are two different types of wallpaper, using different materials, but does not mean that PVC wallpaper must be un-environmentally friendly wallpaper. PVC wallpaper in the process of process manufacturing, residual toxic substances will generally be volatile, the finished PVC wallpaper in general conditions are safe and stable. Of course, this is limited to PVC wallpapers that pass the national test.