Wood-based panels reject artificial green? Pay attention to the "Ten Ring" sign when purchasing
March 12 22:06:31, 2023
At present, there are nearly 6,000 wood-based panel companies in China, of which about 400 are large. Although there are not a small number of self-proclaimed green products, only 50 of them are truly “green panelsâ€. It is easy to identify these 50 companies. Their products are all marked with the Chinese environmental label “10 ringsâ€. Sign. Artificial board is one of the most indispensable raw materials used by consumers for decoration, and it is also the most vulnerable to losses. In order to avoid pollution, many families are extremely careful when decorating their homes. “Non-green†is not used. However, after the renovations are completed, they find that there are a lot of smoked and pungent phenomena. Experts said that in this case, man-made sheets are mostly mischievous. At present, there are nearly 6,000 wood-based panel companies in China, and the number of large-scale enterprises is only about 400. According to Professor Xia Qing of the Chinese Academy of Environmental Sciences, the large number of artificial plates used by consumers for interior decoration, including large core boards, plywood, composite wood floors, and artificial plate furniture, occupy a large area and are released by them. The formaldehyde will affect the entire interior space. It can be said that man-made panels are the source of formaldehyde release. According to Lu Bin, director of the National Man-Made Wooden Board Inspection Center, the amount of formaldehyde released from man-made boards is mainly the problem of adhesives in the boards. There are several basic methods to reduce the formaldehyde content of products: using adhesives without formaldehyde, improving the formula of urea-formaldehyde resin, Improve production processes, post-processing methods through wood-based panels, etc. In these methods, it is relatively simple to replace and improve the adhesive, and it is also the most suitable method for companies to meet national standards as soon as possible. In order to pursue high profits, many companies have a lot of "artificial green" methods, such as buying imported high-quality, high-quality adhesives to cope with product inspections, and the market is still selling inferior products, or reducing quality and reducing the use of adhesives. Although the amount of formaldehyde released on the surface is much reduced, it is a fraud. There is also the so-called “formaldehyde spray†that is currently very popular in the market. In fact, it only serves as a temporary solution. Spraying it on the board can only relieve the concentration of formaldehyde that has been released into the air. Eliminating, formaldehyde will still be released slowly, reminding consumers not to blindly believe such products. In fact, the true green artificial board is detected through the following methods: First, the green basis. The national standard inspection report cannot be used as the basis for green product certification, and it cannot be immediately considered as a true green product. Products that reach the national standard can only be “real goods†rather than “true greenâ€. At present, environmental labeling products have strict certification standards. Regarding wood-based panels, the green standards issued by the National Environmental Protection Agency stipulate that formaldehyde emission limits of medium density fiberboard, high-density fiberboard, particleboard, and plywood, blockboard, etc. shall be 0.2 mg/m3. The formaldehyde emission limit of wood-based panels (including solid wood flooring, bamboo flooring, etc.) is 0.12 mg/m3. This standard was developed after survey and assessment in the same industry. Second, the green detection method. In order to avoid the proneness of detection of different products by different methods, the “1 cubic meter air chamber method†(that is, the climate chamber method stipulated in the national standard for arbitration) was uniformly adopted for the artificial plate. Compared with the borehole and desiccator test data, there will be no controversy over the sampling representativeness issues brought about by the borehole location. Finally, the authoritative certification body. All certified artificial board products are inspected by the National Testing Center for Wood-based Panels. They not only test the environmental indicators of the products, but also test the quality of the products. According to Professor Xia Qing from the Chinese Research Academy of Environmental Sciences, the easiest way for consumers to purchase artificial plates is to select Chinese environmental label products bearing the “Ten Ring†sign. At present, only 50 wood-based board manufacturers have obtained this sign. It can be said that these companies are the best in the industry in terms of quality and environmental behavior, and consumers can feel comfortable buying.
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