To decorate material, especially the soft outfit material that contacts more with the body, a problem that people CARES most is environmental protection. And decorate to metope, decorate material to have a lot of, but a lot of people prefer to choose wallpaper also need not coating, this is why?
1. Comparison of composition between wallpaper and coating
Wallpaper main ingredients: mainly by base paper, ink, accessories composition. Base paper mainly has base paper (paper base and pure paper), non-woven cloth, base paper is usually from wood, cotton, hemp and other natural plant fiber; Ink generally USES environmental friendly waterborne ink.
Wall paper accessories can be divided into rubber powder, wet glue, base film, wall paper glue is mainly made of potato, corn and other raw materials, and can be degraded in nature. The main component of wet adhesive is hydroxypropyl distarch phosphate ester, which is the thickener in yogurt. The main component of the substrate is styrene-propyl emulsion, which is a very environmental friendly intermediate chemical.
Main composition of coating: mainly composed of base material, pigment, filler and auxiliaries. The main ingredient of the base material is styrene emulsion; Inorganic pigments are composed of carbon black, iron, zinc, chromium, cadmium, titanium and other metal oxides and salts. The fillers mainly include titanium dioxide, kaolinite, wollastonite, heavy calcium and light calcium. And the auxiliaries mainly include wetting agent, dispersant, defoaming agent, thickening agent, fungicide, brightener and so on.
2. Comparison of environmental protection between wallpaper and coating
The chemical composition of both may be unclear to the layman. However, we can understand that the composition of coating is particularly complex, and the raw materials of wallpaper are mostly from plants. All wallpaper products have drying process and plasticizer cooling recovery device in the factory production process, and VOC and other materials have been dried and recycled before delivery. And coating arrives when use still is liquid, can volatilize material is to be in use on-the-spot — the house is volatilize, dangerous envisage, accordingly, compare below, wallpaper is more environmental protection.
3. The impact of both on health
1. The paint is seriously harmful and heavily taxed by the state
At the beginning of 2015, the country added coating to the scope of consumption tax and levied consumption tax at the rate of 4%. More than a dozen provinces, including jiangsu, have issued a formal notice to VOC (hazardous volatile organic compounds) pollution fees, it can be seen that the coatings are a threat to the environment and human health.
2. Carcinogens VOC and APEO
VOC is a hazardous volatile chemical, the source of environmental pollution, can damage the brain and nervous system, and is also an important factor in the formation of haze. The maximum limit of VOC for water-borne interior wall coatings is 120 g/l, but the VOC will volatilize indoors in the construction and drying process. In 2014, Shanghai quality supervision bureau conducted quality sampling inspection on the current wallpaper on the market, and the VOC content of the wallpaper tested was no more than 10 mg/kg, so it seems that which is more harmful is obvious.
APEO is the abbreviation of alkyl phenol polyoxyethylene ether. It is difficult to degrade and has carcinogenic harm to human body. The two main indexes to detect the selected products are VOC and APEO.
Knowing this, it is easy to understand why more and more people choose wallpaper instead of paint. After all, we will not compromise on environmental protection and safety and health issues.