Solid wood composite floor

The so-called "composite floor". A "composite floor" is a laminated floor. For example, there are some multi-layer solid wood composite floors and three-layer solid wood composite floors, which must be understood.

Solid wood flooring is a kind of wood flooring derived from the solid wood flooring family, so it is actually a new type of solid wood flooring. Because of its natural wood texture, convenient installation and maintenance, anti-corrosion, moisture-proof, antibacterial and suitable for electric heating, it has become the main popular floor type in Europe and America, and is gradually accepted by our people.

Solid wood composite flooring is divided into multi-layer solid wood flooring and three-layer solid wood flooring. The three-layer solid wood composite floor is formed by alternately laminating three layers of solid wood structures, and its surface layer is mostly rare and high-quality hard wood for many years, and the tree species are mostly oak, birch, Fraxinus mandshurica, green-handled mulberry, Burmese eggplant, pineapple lattice, teak and so on. However, oak has become the most popular tree species because of its incomparable texture characteristics and cost performance. The core layer is composed of ordinary soft miscellaneous wood strips, and the tree species are mostly pine and poplar. The bottom layer is rotary veneer, and the tree species are mostly poplar, birch and pine. Three-layer structural boards are glued, and the multi-layer solid wood composite floor is made of multi-layer plywood, with rigid board mosaic or veneer as the panel.

The surface layer of solid wood composite floor is high-quality precious wood, which not only retains the beautiful and natural characteristics of solid wood floor, but also greatly saves high-quality precious wood resources. Most surfaces have been sprayed with high-quality uV paint for more than five times, which is not only ideal in hardness, wear-resistant and scratch-resistant, but also flame retardant, smooth and easy to clean. The core layer is mostly fast-growing wood that can be cut down in turn, and there are also cheap small-diameter wood, various soft and hard miscellaneous materials and other widely available materials, and it is not necessary to consider avoiding various defects of wood, so the yield is high and the cost is greatly reduced. Its elasticity, thermal insulation and so on are no less than solid wood flooring. Because it has various advantages of solid wood flooring, it abandons the shortcomings of laminate flooring and saves a lot of natural resources. It has become the mainstream floor in home improvement in Europe and America, and the development trend of high-grade floor in China in the future is bound to be solid wood composite floor.

2 Industrial development

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The rapid development of solid wood flooring industry in China, from large to strong, on the other hand, benefited from the tempering of various crises and storms in domestic and foreign markets. The tsunami in 2004 triggered fluctuations in the timber market, followed by the increase in the price of solid wood flooring in 2005, the decrease in total consumption, and more intense market competition, especially the introduction of the 5% consumption tax policy in the domestic market of solid wood flooring in 2006, which pushed these solid wood flooring enterprises to the forefront. Therefore, China solid wood flooring industry should re-plan its long-term goals, adjust its strategic thinking, actively build a strong brand, and promote the sustainable and healthy development of solid wood flooring.

200 1 By 2008, the traditional pure solid wood flooring and the new solid wood flooring represented by three-layer and multi-layer solid wood have been changing. In the past two years, new solid wood has maintained a high growth rate of more than 30%. Under the economic pattern of 2009-20 10, the category upgrade of solid wood flooring caused by new solid wood will become the key driving force to continuously promote the consumption boom of home improvement flooring. The global financial crisis has an impact on the wood flooring industry in China, but it will not be a disaster, but people just lack confidence in the market. The running track of market economy always advances in the cycle of peaks and valleys, and the depression of flooring industry will not exist for a long time. There is a strong domestic demand market, and the domestic demand for furniture and building materials is still great.

Healthy floors are produced according to national production quality standards and installation and use safety standards (double standards), which will not produce harmful substances and ensure the safety and hygiene of indoor air.

In the second half of 20 12, the European solid wood composite flooring market declined slightly, and it continued in 20 13. In the first quarter, only Norway achieved a small increase. However, in the overall downturn of the international market, the export market of three-layer solid wood composite flooring in China is still relatively good. More than 90% of Jilin products are exported, and domestic solid wood composite flooring has become a fashion product in Europe and America.

3 production process

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The first step: Only by selecting materials from logs can a good floor be produced, and the quality of logs is very important to the quality of the floor. The quality control of a good brand begins with the selection of logs, and good wood is the basis for producing high-quality floors.

Step 2: Log rotary cutting and drying are used to process and manufacture solid wood core board of multi-layer solid wood composite floor substrate. The quality of solid wood core board is closely related to the quality of finished floor. The thickness of rotary-cut solid wood core board is about 1.5 mm, and it takes some time to dry after rotary-cutting.

Step 3: Sorting of solid wood core boards In order to ensure the quality of each floor, regular manufacturers usually only choose solid wood core boards with uniform thickness, moderate thickness, no defects and no cracks as the floor substrate, and full-time sorters choose the floor substrate.

Step 4: Glue the core board with professional gluing equipment, which can ensure the uniformity of gluing quantity and improve the gluing efficiency. After 8- 10 layers of thin solid wood core boards are glued, they are arranged in an orderly crisscross manner and bonded together, which can change the original stretching direction of wood fibers. It is this step that completely improves the limitation of wet expansion and dry shrinkage of solid wood.

Step five, hot-pressing and bonding the core plate; Hot pressing is an important process in the production of solid wood composite flooring, which is directly related to the quality of finished flooring. The hot pressing equipment used in large factories is relatively advanced, and the production management personnel monitor the whole process, so the product quality is relatively stable.

Step 6: Sanding the substrate with fixed thickness. Sanding the surface and bottom of the floor substrate with a large-scale fixed thickness sander can ensure the flatness and smoothness of the board surface, thus improving the accuracy of the product and providing a reliable guarantee for the bonding of precious bark on the decorative surface.

Step 7: After the primary processing of substrate sorting is completed, the substrate of healthy floor will be carefully sorted by a special person to eliminate unqualified products. After high temperature and high pressure, there is a large internal stress in the substrate, which needs to be released after standing for 15 to 20 days to make the substrate balanced and stable. This process is called keeping in good health.

Step 8: Choose solid wood veneer and multi-layer solid wood composite floor for dry environment in the north, so dimensional stability is the key. In order to prevent cracking in dry and hot season, all the precious wood skins on the surface of big brand solid wood composite floors are selected by professional quality inspectors one by one, and the moisture content is strictly controlled.

Step 9: floor molding: the selected veneer is coated with environmental protection glue and stuck on the floor substrate, and then hot-pressed in an advanced hot press to make qualified multi-layer solid wood composite floor.

Step 10: Floor Maintenance Because the floor substrate is hot-pressed after the decorative veneer is attached, there is a large internal stress in the floor, so it is necessary to maintain the floor in a balanced curing barn with constant temperature and humidity for about 20 days, so as to ensure a more stable floor quality.

Step 11: the floor is cut and slotted, and the floor will be cut and shaped by slotting equipment. The quality of slotting is of great significance to the splicing of finished floors, so many large domestic enterprises have introduced cutting equipment imported from Germany to ensure the quality.

Step 12: Roll paint/spray paint to dry and shape the slotted floor, and pass through the roll paint/spray paint equipment. After eight coats of primer and four coats of topcoat, the surface paint of the finished floor will be wet and tough. After that, only sorting and packaging are needed to end the whole production process.

4 product types

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Divide by structure

Three-layer solid wood composite floor, multi-layer solid wood composite floor with plywood as the main component;

According to the surface material

Solid wood parquet as the surface layer and veneer as the surface layer;

Is there a coating on the surface

Coated solid wood composite floor, uncoated solid wood composite floor;

Technical points of floor paint surface

Surface plane solid wood composite floor, retro-treated solid wood composite floor.

5 Advantages and disadvantages

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superiority

Advantages: 1, easy to handle and clean.

Simple care, bright as new, no dirt embedded, easy to clean. The surface of solid wood composite floor is painted well and has good wear resistance, and it doesn't take much effort to maintain it. It is understood that the best solid wood composite floor on the market can keep the paint as bright as new without waxing for 3 years. This is in sharp contrast with the maintenance of solid wood floor modeling.

Advantage 2. Solid wood composite floor has stable quality and is not easy to be damaged.

Because the base material of the solid wood composite floor is composed of multiple layers of veneers, wood fibers crisscross to form a net-shaped laminate combination, and various internal stresses of wood are adapted to each other among the laminates, thus ensuring the smoothness and stability of the wood floor and maintaining the overall beauty of the solid wood floor. It can not only enjoy the warmth of nature, but also solve the shortcoming that solid wood floors are difficult to maintain. It is the beautiful crystallization of laminate flooring and solid wood flooring.

Advantage 3, affordable.

The price of solid wood composite floor is much lower than that of solid wood floor because of its unique structure, less requirements for wood and full use of materials.

Advantage 4. Simple installation.

The installation of solid wood composite floor is the same as that of reinforced floor, and the height can be improved as long as it is leveled without keel. Moreover, due to the simple installation requirements, the hidden dangers caused by installation are greatly reduced.

Advantage 5. Bright colors, clear lines and beautiful colors.

Advantage 6, environmental protection.

It has the advantage of convenient installation and maintenance, and the solid wood composite floor mostly adopts adhesive with low formaldehyde release, which is beneficial to environmental protection.

disadvantaged

1. The wear resistance is not as good as that of laminate flooring, and the thickness of multilayer composite flooring is higher;

2. The price is high and the cost performance is not high. Compared with laminate flooring and multi-layer composite flooring, the price is higher;

3. Due to high technological requirements, complex structure and great quality difference, it is difficult to identify the internal quality;

4. Compared with laminate flooring, there is no laminate flooring in design and color. Compared with solid wood flooring, the production of solid wood composite flooring must use glue. Unlike traditional solid wood flooring, there is basically nothing but wood itself. Although the quality of glue is very high and the formaldehyde content is almost negligible, it still exists.

5. The blisters are irreparable after being damaged.

In addition, it is worth noting that the new generation of flooring-multi-layer composite flooring, which is the fusion product of solid wood composite flooring and laminate flooring, has developed rapidly. This floor enhances the wear resistance of the floor and the deformation resistance of the solid wood composite floor. With its excellent performance in various harsh environments (geothermal, humid and public places), there is a trend of solid wood composite flooring. Because it is the latest floor category, the market awareness is not enough for the time being, but just like the introduction of solid wood composite flooring in that year, with consumers' understanding of multi-layer composite flooring, the market share will gradually increase and become the main force in the domestic floor market.