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Ecological board, in the plywood industry in Liuzhou, there are many ways to call it, the common way to call it is paint free board and melamine board. The original name is melamine board. However, due to the pollution of dairy products in China, it was forced to change its name. The industry is generally called paint free board, and also called ecological board. However, the ecological board is too general, because many boards that achieve ecological environmental protection can also be called ecological board, which is easy to be confused.
There are two concepts of ecological board: narrow sense and broad sense.
In a broad sense, the ecological board is equivalent to melamine veneer, whose full name is melamine impregnated adhesive paper veneer wood-based panel. It is to soak the paper with different colors or textures in the ecological board resin adhesive, and then dry to a certain degree of curing, and pave it on the surface of particleboard, moisture proof board, MDF, plywood, joinery board or other hard fiberboard after heat treatment A pressed decorative panel.
In a narrow sense, the ecological board only refers to the melamine veneer whose base material is splicing solid wood (such as Malacca, fir, Tongmu, poplar, etc.). Mainly used in furniture, cabinet, wardrobe, bathroom cabinet and other fields.
"Melamine" is one of the resin adhesives for manufacturing ecological boards. Paper with different colors or textures is soaked in the resin, dried to a certain degree of curing, and then paved on the surface of particleboard, MDF or hardboard. It is a decorative board made by hot pressing. The standard name is melamine impregnated adhesive film paper facing wood-based panel, which is called the actual melamine board It's part of the composition of the finish.
Generally, it consists of surface paper, decorative paper, covering paper and bottom paper.
① The surface paper is placed on the top of the decorative board to protect the decorative paper, so that the surface of the board after heating and pressure is highly transparent, and the board surface is hard and wear-resistant. This paper requires good water absorption, white and clean, and transparent after dipping.
② Decorative paper, i.e. wood grain paper, is an important part of decorative board. It has a background color or no background color. The decorative paper printed into various patterns is placed under the surface paper, which mainly plays a decorative role. This layer requires that the paper has good covering power, impregnation and printing performance.
③ Covering paper, also known as titanium white paper, is generally placed under the decorative paper when manufacturing light color decorative boards to prevent the underlying phenolic resin from penetrating the surface. Its main function is to cover the color spots on the surface of the substrate. Therefore, good coverage is required. The above three kinds of paper are respectively impregnated with melamine resin.
④ The base paper is the base material of the decorative board, which plays a role in the mechanical properties of the board. It is soaked with phenolic resin adhesive and dried. During production, several layers can be determined according to the use or the thickness of the decorative board.
Generally speaking, MDF and particleboard are used as the base materials for the board furniture in the market, that is to say, the ordinary melamine veneer is only used. In contrast, the performance of narrow sense ecological board base material, multi-layer solid wood or joinery board is much better. First of all, the thickness and layer sense of multi-layer solid wood base material should be considered. Good base material has uniform thickness, good layer sense, no cavity, overlapping phenomenon, flat and smooth surface, no bulge. Joinery board also depends on the thickness, and then the quality of the internal wood block. Good joinery board base material wood block is even, without bark, arc edge, large cavity, and flat and smooth surface without bulge. Most businesses use the ecological boards made of density boards, and some ecological boards use the ecological boards such as multi-layer solid wood or joinery boards, which perform much better in this respect. Because of the high requirements for the surface flatness of the substrate, the overall effect of the solid wood multilayer is slightly higher than that of the joinery board, and the individual can choose according to the needs in use. Ecological board has been widely used in home decoration, panel furniture, cabinet, wardrobe, bathroom cabinet and other fields. The quality of domestic products needs each of us to supervise and choose.
Advantages and disadvantages
"Melamine board" takes particleboard as the base material and melamine impregnated paper as the facing. Compared with traditional pasted furniture, melamine board has the characteristics of high temperature resistance, acid and alkali resistance, moisture resistance and fire resistance. Its surface is not easy to change color and peel, and it is easy to be processed into different styles and strong texture veneers. Since its birth, the board has been rapidly applied to furniture, floor and interior decoration Decoration and other aspects. At the same time, as a new product, the product integrates the functions of veneer and plywood (or joinery board), improves the added value of the product while saving the production process, saves the decoration cost and labor cost for consumers, and is guiding the new trend of home decoration. The mainstream panel furniture in the market is basically made of melamine veneer Cheng.
The middle main part of the ecological board is made up of battens. Due to the different moisture content and production cycle of battens, there will be some deformation. In the use process, if the use environment is relatively wet, it will cause great deformation, and the wood inside will become moldy and infested. Therefore, in the process of purchase, consumers need to identify the wood species. Among them, the price of light and soft clothing wood is cheap pine, which is generally inferior to good fir. As for poplar, which belongs to miscellaneous wood, Tung wood is very soft and light. The ecological board in the market is a mixture of fish and dragons, so the majority of consumers need to be careful when purchasing.
With its beautiful surface, convenient construction, eco-environmental protection, scratch resistant and wear-resistant characteristics, the ecological board is more and more favored and recognized by consumers, and the panel furniture produced by the ecological board is also more and more popular. Because of its characteristics and environmental protection, ecological board has always been the favorite of the board industry. It was originally used to make computer desk and office furniture, mostly monochromatic board. With the popularity of panel furniture in the family, it has gradually become a good manufacturing material for furniture factories, with more surface colors and patterns. Ecological board has been widely used in home decoration, panel furniture, cabinet, wardrobe, bathroom cabinet and other fields.
Environmental protection grade
No matter what kind of sheet metal, it is necessary to use glue in the manufacturing process, so the formed sheet metal will release free formaldehyde, but it is harmless to human body under a certain concentration. According to the regulations, the environmental protection level of indoor sheet metal should reach E1 level, which is safe and environmental protection, harmless to human body. At the same time, we should pay more attention to the formaldehyde emission of the board used in furniture. E1 level environmental protection standard is a national compulsory health standard, which is a compulsory "safety standard line". Because the formaldehyde content of 0.9mg/l is a very safe numerical standard. According to relevant data, the formaldehyde content of drinking water is 0.9mg/l, that is to say, the formaldehyde content of E1 standard reaches the drinking level.
The ecological board itself is made of wood processing, and also contains a small amount of formaldehyde, but the main choice is qualified, environmental protection level reaches E1, which is very safe. Moreover, compared with other boards, the ecological board has the advantage of paint free. The advantage of paint free is to reduce the emission of toxic and harmful substances caused by paint, which is more environmentally friendly.
Appearance and surface
The surface of the ecological board with quality up to standard has certain hardness. The furniture made with it does not need to be painted. The surface naturally forms a protective film, which is wear-resistant, scratch resistant, acid and alkali resistant, hot resistant and pollution resistant.
When consumers choose the panel furniture of ecological board, in addition to the satisfaction of color and texture, they can also distinguish the appearance quality from several aspects: whether there is stain, scratch, indentation, pore, whether the color luster is uniform, whether there is bubble, whether there is local paper tear or defect, etc. If the veneer is cracked or damaged, you can first place a wet cloth on the damaged part, and then place a hot iron on the wet cloth to force moisture into the veneer, so that the veneer becomes very tough and not easy to crack. The old glue can be scraped clean before the edge sealing cracks, and then a layer of milky glue can be applied on the base wood, and then a layer of new glue can be applied on the back side of the loose edge sealing strip and compacted until the glue is completely dry.