Solid wood furniture

Natural, environmentally friendly, high quality, this is consumption The traditional understanding of solid wood furniture. However, after the Da Vinci incident, the reporter found in the market visit that the introduction of pure solid wood furniture, the tone of some merchants changed greatly, from the previous "health and environmental protection" to "easy deformation, cracking", and many solid wood furniture actually It is also made of “finger joints and laminated materials. A lot of glue is used in production, which is not environmentally friendly”. Are these statements true? What is the true face of solid wood furniture? In this issue, we came to follow the experts to get to know the solid wood furniture.

Solid wood furniture

Many solid wood furniture in the minds of consumers means that all parts of the furniture are pure solid wood furniture made of whole piece of wood. In fact, this kind of pure solid wood furniture is only a part of the solid wood furniture sold on the market. To truly understand the solid wood furniture, it is first necessary to have a comprehensive understanding of the concept and classification of solid wood furniture. In accordance with the national standard "GBT 3324-2008 general technical conditions for wooden furniture", solid wood homes have two classification criteria: "wood solid wood proportion and technology" and "solid wood properties".

According to the proportion of materials and process points

 

Luo Wei, director of the Beijing Wood Furniture Quality Supervision and Inspection Station, said that according to the proportion and technology of solid wood materials, the national standard Chinese solid wood furniture is divided into three categories: “all solid wood furniture”, “solid wood furniture” and “solid wood veneer furniture”. . All solid wood furniture means “all wood parts (except mirror pallets and beading) are made of solid wood sawn timber or solid wood panels”. Solid wood furniture refers to “the furniture made of solid wood sawn timber or solid wood, and the surface is not covered with furniture”. Solid wood veneer furniture refers to “the furniture made of solid wood sawn timber or solid wood panels, and the surface is covered with solid wood veneer or thin wood (wood veneer)”. The difference between solid wood furniture and solid wood veneer furniture is that "the substrate is veneered", the veneer is attached to the surface of solid wood veneer or thin wood (wood veneer).

Luo Wei introduced that according to the national standard, “substrate” is “the material used to make the main parts of furniture, also called the main material.” The main component of the furniture is the part that supports, supports and longitudinally separates the furniture. The main components of table furniture include table tops, drawers, door panels, side panels, tripods, etc. The main components of cabinet furniture include panels, roof panels, side panels, partitions, floor panels, tripods, etc.; The components include seat surface, armrest, backrest, foot, etc.; the main components of bed furniture include bed screen (high screen, low screen), bed board, bed mattress and so on.

Luo Wei reminds that as long as one of the substrates is made of wood-based panels, all other solid woods can not be called solid wood furniture, which is what we often call "board and wood combined furniture" is not "solid wood furniture", but Miscellaneous Wood furniture. In the new edition of the "General Technical Conditions for Wood Furniture" national standard, comprehensive wood furniture refers to furniture made of a mixture of solid materials, wood-based panels and other materials.

Solid wood veneer furniture, mainly because the wood used in the furniture is not too good, the texture and color are not beautiful enough, so the precious wood with better texture and color is used on the surface. If the texture, color and material of the solid wood are very good, the materials are excellent, and generally no veneers are needed. “That is to say, solid wood furniture and solid wood furniture can visually see the color, texture and material quality of the solid wood itself, and it means that if the material is better, its value will be higher.”

So, how to identify whether solid wood furniture is surface veneer? Experts said that you can look at the texture of the two sides of the whole board. If it is solid wood, the texture of the corresponding position on both sides should be the same. If it is solid wood, it will not be the same.

According to the properties of solid wood

According to the properties of solid wood, solid wood furniture is divided into solid wood sawn furniture and solid wood sheet furniture. According to the national standard, solid wood sawn furniture is also called natural solid wood furniture, which refers to "furniture made of solid wood sawn timber." The reason why it can be called natural solid wood furniture is that solid wood sawn timber is directly cut into logs to make the furniture required specifications, dry materials.

Solid wood panel furniture is furniture made of solid wood panels. The solid wood board refers to the solid wood material formed by the secondary processing of the wood such as the joint material and the laminated material. What does fingering and integration mean? According to Luo Wei, the finger joints are connected by means of finger joints, and the integration means that the narrow materials are widened by means of glue. Solid wood board is a solid wood material formed by secondary processing. In terms of value, solid wood sawn wood furniture has higher requirements for material selection and lower yield. The production cost is much higher than that of solid wood sheet furniture. Expensive.

In response to the use of rubber on the market, Luo Wei said that solid wood furniture made of finger joints and laminated materials must be glued in the process of finger jointing and integration, but now they are allocyanic acid. Grease, "This glue is a water-soluble glue and does not contain formaldehyde. It is harmless to people during use and can be used with confidence."

Judging whether it is a finger-joined wood requires the consumer to carefully identify the surface of the furniture and see if there are seams between the woods, and whether the corresponding lines on both sides of the surface material are consistent.

Two-sided view of environmental protection of solid wood furniture

Regarding the environmental protection of solid wood furniture, experts say this is also relative. Luo Wei believes that from a traditional point of view, consumers think that solid wood furniture is better than wood-based furniture. It feels that solid wood furniture is pure natural material, artificial wood plate contains formaldehyde, etc., so solid wood furniture is more environmentally friendly. But in fact, from the perspective of protecting the overall environment, the production of solid wood furniture requires the cutting down of a large amount of wood, which is actually more destructive to the environment than artificial boards. From the perspective of “big environmental protection”, solid wood furniture is worse than wood-based furniture. . It is understood that the artificial board has high utilization rate, high production efficiency, low cost and is not easy to be deformed. For the sake of environmental protection, many foreign furniture are wood-based panel furniture.

From the perspective of the family environment and human health, solid wood furniture is natural, and the formaldehyde content is much lower than that of artificial boards. Some consumers have reported that the surface of solid wood furniture is painted with paint, the paint may be toxic, and some solid wood furniture still smells good. Luo Wei explained that the paint is a national compulsory certification product, and there is no problem in the quality of the formal product. The paint used for the surface coating of solid wood furniture is polyurethane, which will quickly evaporate after drying, and the pollutants can be volatilized by more than 90% in a short time, which is safe for the human body. "The reason why some solid wood furniture smells good, the problem lies in the craft, mainly because the factory rushed to the construction period, the first time the paint did not dry out, it began to brush the second time, the inner layer of paint was not dry, So it smells good. But this smell disappears as the paint dries out.” Experts also believe that wood-based panel furniture is not meant to be harmful to the home environment. "China's environmental protection indicators for artificial panels are basically in line with international standards. China is also the largest exporter of furniture and the largest exporter of wood-based panels. As long as it is wood-based panel furniture that meets national standards, there is no problem in environmental protection."

Solid wood furniture is also very good

In the process of visiting the market, the reporter found that many merchants selling European classical furniture have indicated that they are selling furniture combined with wood and wood, and also attacked solid wood furniture, saying that solid wood furniture is easy to crack and deform, which is not particularly good. Is this correct?

Luo Wei said that the wood is indeed prone to the problem of swelling and shrinking, but if the production process is in place, the wood is dry and well, and the seams are in place, and the solid wood furniture is not easy to crack and deform. In the production process of solid wood furniture, the most important thing is the wood drying process. If the drying is not done well, the furniture made will be easy to crack and deform. If it is dry, the stress of the wood itself will be eliminated, and there will be no deformation. Cracking problem.

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