Building materials industry set off environmental protection

In recent years, as consumers pay more and more attention to the environmental protection of home building materials, the paint market has also set off an “environmental protection wind”, and many businesses have rushed to launch “net taste” paints. The words "green environmental protection" were used.

expert's point:

Song Guangsheng, director of the National Indoor Environment and Indoor Environmental Protection Product Quality Supervision and Inspection Center, said in an interview with reporters that at present, the country has not formulated a uniform standard for coating odors, and there is no special standard and requirement for “net taste”. “Net taste” is only a manufacturer. Presenting sales concept. Ting Li Li Li (Beijing) Co., Ltd. general manager Yan Ming also said that some businesses through hints, word games and other means to hype the concept of environmental protection, and even exaggerated the effectiveness of the product's environmental protection.

Song Guangsheng introduced that “Net Taste” coatings are mainly special-effect functional coatings that can purify the odors and toxicity in the air. The coatings themselves are virtually non-toxic. However, many “taste” paints produced by small manufacturers do not have a net taste function, but only have a small smell. Most of the products on the market today belong to the two net taste principles: “direct elimination of odor by emulsion technology” and “coverage of emulsion odor by perfume”. The former is a true net odor technology, and the latter is a pseudo net odor technology. When consumers purchase paint, they can open the product on site to test the smell. A good clean-tasting product should not have any pungent taste. If there are obvious pungent odors or other fragrances, it may be added with flavor or The "pseudo-pure smell" products of harmful substances will also harm the human body and the environment.

Ren Changqing, secretary-general of the China Building Decoration Materials Association, said that the harm VOC causes to people is slowly manifesting, and it is not easy to be noticed in the short term. However, when the VOC reaches a certain concentration, people may experience headaches, nausea, weakness in the extremities, and serious convulsions such as convulsions and coma. Therefore, consumers must pay attention to coating VOC content when purchasing. Ren Changqing introduced that the national mandatory standards stipulate that the VOC content of interior latex paint should not exceed 200 g/l. However, for some brand salespeople declared that "the VOC content of the product is close to 0", Ren Changqing suggested that when the numerical content of VOC in the coating is less than 1 gram or tends to 0, it is customarily called "zero VOC" internationally. Therefore, if the merchant claims that the VOC content of his product is lower than the national standard, it should be corroborated by an inspection report of an authoritative organization, otherwise this argument is not credible.

Sun Lianying, chairman of the China Coatings Industry Association, said that traditional coatings have long been one of the most important sources of home furnishings. At present, most of the coatings on the market in China are still using organic solvents as solvents and thinners, and organic solvents have great harm to the environment and people's health. In contrast, water-based paints use water instead of organic solvents and can be diluted with water. Construction tools can also be cleaned with water, reducing pollution to the environment.

“At present, there are also many water-based paint products on the market, but due to consumers’ consumption habits and price factors for a long time, whether in production or sales, oil paints in China have always occupied an absolutely strong position. With the emphasis on environmental protection by consumers, water-based coatings have been accepted and recognized by more high-end consumer groups, but for the larger medium and low-cost consumer markets, it is still the world of oil paints.” Sun Lianying also analyzed that due to At present, the coating effect of the majority of domestic water-based paint products cannot fully reach the same level as that of oil-based paints, and the coating process of water-based paints is greatly affected by climate and environment, and the construction period is longer. Therefore, water-based paints are difficult in China. Really occupy the market. Sun Lianying said that if it can not achieve the upgrade of product quality, waterborne coatings are difficult to be widely accepted by the domestic market.