KR101036289B1 - having a wood pattern carbonization board and manufacturing method it - Google Patents

Abstract

The present invention relates to a carbonized board having a wood pattern on which a wood pattern is realized on the surface by carbonizing it at a high temperature in a state in which a veneer is bonded to a surface of a wood board and integrated.

The first feature of the present invention is to adhere the veneer sliced to the surface of the smooth wooden board with an adhesive to form a wood veneer attached to the wood plate, so that the wood pattern is realized on the surface by carbonizing the wood veneer board with a high temperature It is.

A second feature of the present invention is the step of forming a veneer wood board by adhering the veneer sliced on the surface of the smooth wooden board with an adhesive; Stacking the wood veneer with veneer in a carbonization furnace, and stacking the laminated wood plate with a weight having a weight to prevent deformation so that a predetermined pressure is applied thereto; Forming a carbonized board by blocking the carbonization furnace from the outside to make a non-oxidizing atmosphere and then isothermally heating the temperature of the carbonization furnace at least at 800 ° C. to form a wood pattern on the surface; And removing the carbonized board from the carbonization furnace so that at least a portion of the veneer is polished so that carbonized powder is not buried.

Carbonized board, wood pattern, MDF, veneer

Description

Carbonizing board having wood pattern and manufacturing method thereof

The present invention relates to a carbonized board having a wood pattern and a method of manufacturing the same.

More specifically, the present invention relates to a carbonized board having a wood pattern on which a wood pattern is realized on a surface by carbonizing it at a high temperature in a state in which a veneer is bonded to a surface of a wood board and integrated.

Carbonization board has various arc functions such as electromagnetic shielding function, air purification function, and humidity control function, so that it can improve indoor environment when used as building finishing material.

As an example of using the same, referring to Patent Registration No. 813673 and FIG. 1 of the present application, a method of manufacturing a carbonization board by carbonizing MDF has been proposed.

The carbonized board proposed here is a carbonization furnace (3) in which a weight body (2) having a sense of weight is placed between the MDF panels and on the uppermost layer in order to prevent warping deformation during carbonization after stacking a plurality of MDF panels (1). It is completed by carbonizing inside.

Unexplained symbol H is a heater for supplying heat to the carbonization furnace.

The MDF (medium density fiberboard) is a wood board having a density of 0.4 to 0.88 g / cm3 made by molding and thermocompressing wood fibers obtained by dissolving at high temperature using a wood material as a main raw material with a synthetic resin adhesive. It has the advantages of uniform fiber distribution over the entire thickness, dense structure, and no directivity, so that complex machining operations can be performed without rupture of the side or side, and also have the advantage of shrinkage but less warpage deformation during carbonization. have.

However, in spite of these advantages, when carbonizing the MDF, there was a problem that black foreign matter (carbon powder) is buried because of the surface of the carbonized powder. To solve this, surface treatment is required. Previously, carbonized boards were manufactured, and then the surface performance of the carbonized boards was improved by attaching veneer or thin marble, coating ceramics, or using a color printing technique using a flatbed printer.

However, such a surface decoration method has a disadvantage in that it is difficult to fully exhibit the charcoal adsorption performance by blocking the micropores of the carbonized board.

In addition, MDF is wood that has been processed as described above, so there is no wood grain pattern. Therefore, when carbonizing it, there is a disadvantage in that the aesthetics are reduced because there is no wood grain pattern on the surface. In order to compensate for this, as suggested above, the other aesthetic materials may be attached, coated, or printed to increase aesthetics, but the drawback of deterioration of charcoal inherent adsorption performance may occur.

As another method, carbonizing wood that is not processed wood has the advantage of expressing wood grain pattern even after carbonization, but when carbonizing wood, it cannot be used as a flat board because it is ruptured or distorted due to the inherent characteristics of the wood. There is a problem.

2 to 5 are carbonized various wooden specimens.

First, Figure 2 is a solid oak wood and carbonized, Figure 3 is a maple wood and carbonized it, Figure 4 is a pine wood and carbonized it, Figure 5 is a paulownia wood and carbonized it. It was confirmed that it is difficult to use these as a flat board because carbonized wood is severely deformed or cracked.

Accordingly, the present invention has been proposed to solve the conventional problems as described above, the main object of the present invention is to have a wood pattern on the surface by carbonizing it at a high temperature in a state in which the veneer is bonded to the surface of the wood board to integrate In providing a carbonized board having a wood pattern.

In addition, another object of the present invention is to provide a wood pattern carbonized board to prevent the carbonized powder is buried by grinding and drying the carbonized veneer with water sandpaper.

In addition, another object of the present invention is to provide a method of manufacturing a wood pattern carbonized board for manufacturing the wood pattern carbonized board.

As a first aspect of the present invention for achieving the above object

The wood veneer is characterized by adhering the veneer sliced to the surface of the smooth woodboard with an adhesive to construct a wood veneer with wood veneer, and then, by carbonizing the wood veneer with wood veneer at high temperature A carbonization board having is provided.

In addition, as a second aspect of the present invention for achieving the above object,

Bonding the sliced veneer on the surface of the smooth wooden board with an adhesive to form a veneer wooden board; Stacking the wood veneer with veneer in a carbonization furnace, and pressing the laminate to press a predetermined pressure by laminating together with a weight having a weight to prevent deformation; Forming a carbonized board by blocking the carbonization furnace from the outside to make a non-oxidizing atmosphere and then isothermally heating the temperature of the carbonization furnace at least at 800 ° C. to form a wood pattern on the surface; After the carbonized board is drawn out from the carbonization furnace, at least grinding of the veneer part to prevent carbonized powder from being provided.

The carbonization board of the present invention can add aesthetics with the basic function of improving the indoor environment by making the wood pattern formed on the surface by carbonizing the MDF and the veneer in a less deformation state.

The carbonized board of the present invention is water-polishing in place of the existing surface decoration method (such as veneer, marble, ceramic coating, color printing, etc.), while maintaining the adsorptive performance, which is an original characteristic of the product, but without carbonized powder. Also, the effect of surface gloss can be obtained.

The carbonization board of the present invention can further strengthen the surface strength by the so-called vitrification phenomenon in which the inorganic component of the veneer is hardened like glass while melting at high temperature during the carbonization of the veneer.

Advantages and features of the present invention, and methods of achieving them will become more apparent with reference to the embodiments described below in conjunction with the accompanying drawings.

Attached Figure 7 is an exploded configuration of the veneer wood board according to the present invention, Figure 8 is a photograph of the bonding state of the wood board with veneer according to the invention, Figure 9 is a picture of a carbonized board according to the present invention.

As shown in the drawings and photos above, the carbonized board having a wood pattern according to the present invention, the wood veneer (slice) sliced (slice) on the surface of the smooth wood board 20 by the adhesive 40 to adhere wood veneer After the plate 10 is configured, the veneered wood plate 10 is carbonized at a high temperature. When carbonized as described above, the veneer 30 is carbonized while the veneer 30 is carbonized while the wood pattern, which is a unique pattern of the veneer, is maintained.

Here, the wood plate 20 is very preferably applied to MDF (fiber board), of course, it can be applied to materials such as particleboard (PB), plywood, oriented cutting board (OSB). The reason why MDF is suitable as the wood plate 20 is that, as described above, MDF has a uniform fiber distribution, a dense structure, and no directionality, so that it is possible to perform a complicated machining operation without rupture of sides or sides. It is because it shrinks at the time of carbonization as shown in Fig. 6, but there is no twisting deformation, and thus it is very easy to carbonize a plate.

The wood veneer 30 refers to turning on a very thin wood to match the texture in advance, and has a natural wood grain pattern, which is widely used in the interior field. The veneer 30 has a disadvantage in that it is easily deformed in moisture or foreign matter in the air, but the deformation is suppressed because it is bonded to the MDF.

Similarly, even when carbonization, the deformation of the veneer 30 follows the MDF under the influence of the thick MDF, so that the strain rate of the MDF and the veneer 30 is the same, resulting in the effect that one wooden board is deformed.

At this time, the preferred thickness range for the veneer 30 to piggyback on the deformation of the MDF is 0.2 ~ 2mm is suitable. If the thickness of the veneer 30 is thinner than the above range, it is difficult to turn on the veneer. On the contrary, if the thickness of the veneer 30 is thicker than the above range, it is difficult to make a flat board by deforming independently of the deformation of the MDF.

On the other hand, it is preferable to apply titanium oxide (TiO ₂ ) or manganese dioxide (MnO ₂ ), which is a photocatalyst, to the surfaces of the veneer timber plate 10 and the veneer 30, and the adhesive agent 40 may be applied to the photocatalyst. It can also be mixed in and used. The photocatalyst functions to oxidatively decompose pollutants in the air.

On the other hand, a thermosetting resin such as urea resin, melamine resin, phenol resin or the like may be applied to the surfaces of the veneer wood plate 10 and the veneer 30. The reason for applying the thermosetting resin is to melt when carbonizing the carbonized board of the present invention, while partially penetrating into the pores of the carbonized board serves to enhance the surface strength.

On the other hand, after carbonizing the wood plate 10 with veneer, it is also possible to apply titanium oxide (TiO ₂ ), manganese dioxide (MnO ₂ ), phenolic resin.

Hereinafter will be described a method of manufacturing a carbide board according to the present invention.

In the first step, the veneer wood plate 10 is formed.

That is, the veneer 30, which is sliced on the surface of the smooth plank 20, is adhered by the adhesive 40 to form the veneer plank 10 with veneer.

In a second step, the veneered wood board 10 is laminated inside the carbonization furnace under pressure.

That is, the veneer timber plate 10 is laminated in a carbonization furnace, but is laminated with a weight body 2 having a weight to prevent deformation so that a constant pressure is applied (see FIG. 1).

Carbonization in the state of laminating only the veneer wood board 10 is accompanied by deformation while evaporating moisture, and the surface abutting between the wood plank board 10 with veneer is not heated enough to cause an imbalance of carbonization Bar, to prevent this, by interposing a weight body (2) having a good thermal conductivity and having a moderate weight between the uppermost layer and the lowermost layer of the veneer veneer board and each veneer veneer board (10), The plate 10 is prevented from being deformed during carbonization, and the surrounding heat is conducted to the wood plate 10 with veneer to uniformly carbonize.

In a third step, the veneer wood board 10 is carbonized.

That is, the carbonization furnace 3 is made of a non-oxidizing atmosphere by blocking the carbonization furnace 3 from the outside and isothermally heated at least 800 ° C. in the carbonization furnace to form a carbonization board 50 having a wood pattern on the surface.

Here, the reason for making the carbonization furnace 3 into the non-oxidizing atmosphere is to block the contact with oxygen in the process of carbonizing the veneer timber plate 10 to prevent oxidation of the veneer veneer, and the quality is excellent and uniform. To obtain a product with one characteristic.

In addition, in order to avoid contact with oxygen, the carbonization furnace 3 preferably forms an airtight inside of the carbonization furnace and fills the inside of the carbonization furnace 3 with a gas such as nitrogen gas.

When the carbonized wood plate 10 is carbonized in the carbonization furnace 3, the weight, volume, and density of the MDF wood plate 20 and the wood veneer 30 constituting the wood veneer plate 10 is attenuated. do. As described above, the MDF wood board 20 has almost no warping deformation during carbonization and is pressed by the weight body 2 so that only weight, volume, and density are attenuated while maintaining the flat state, and the veneer 30 is also The MDF board 20 is attenuated onto a flat plate.

For reference, the degree of attenuation of the MDF wood plate 20 is as shown in Table 1 below.

Weight (g) Width (mm) Length (mm) Thickness (mm) density Carbonization MDF 1365 200 300 30 0.76 After Carbonization MDF 431 157 233 18 0.66 % Reduction 68.4 21.5 22.3 40.0 13.2

When carbonizing the wood board 10 with veneer in this way, a new carbonized board 50 of the integral type is completely made of the wood board 20 and the wood veneer 30. Here, as the adhesive 40 for bonding the wood plate 20 and the veneer 30 is changed to inorganic carbon at a high temperature, the wood plate 20, the veneer 30, and the adhesive 40 are made of one inorganic carbon. It is transformed into a single component while converting the material.

In addition, the veneer 30 has been hardened while being carbonized at a high temperature.

This is because traces of minerals such as calcium and silica in the veneer 30 are melted at a high temperature, so that a so-called clinker effect that hardens as glass occurs.

This phenomenon is also observed when the carbon is carbonized at a temperature higher than 800 ° C., and silica on the surface of the bamboo melts and becomes hard as glass.

In step 4, the carbide board 50 is surface treated.

That is, after drawing the carbonized board 50 from the carbonization furnace 3, at least a portion of the wood veneer 30 is polished so that the carbonized powder is not buried.

The polishing is performed by wet sanding. As is well known, water sanding works by sanding the dry sand with water soaked to give a smoother surface.

In step 5, the carbonization board 50 is dried.

That is, the water is in a state in which water penetrates into the pores of the carbonization board 50 by the water sanding operation, and the drying process is a process of evaporating the water thus penetrated. The drying method is a method of natural drying in a cool place and a method of drying in an attribute by putting in a dryer (not shown) of about 60 ℃, any of these methods may be selected and dried.

As such, when the drying process is completed, not only the surface is polished, but also carbonized powder is not buried, and thus the finished product can be used as a carbonized board.

On the other hand, the adhesive 40 may be mixed with titanium oxide or manganese dioxide as a photocatalyst, and may be applied to the surface before the carbonized wood plate 10 is carbonized. In this case, carbonization is performed in the state where titanium oxide or manganese dioxide is applied or mixed, so that titanium oxide or manganese dioxide is introduced into the pores of the veneer wood board 10 and fixed in the carbonization process.

On the other hand, the titanium oxide or manganese dioxide may be applied to the surface of the carbonized board 50 through the post-treatment after carbonized wood plate 10 is carbonized, of course.

The photocatalyst is an n-type semiconductor, and when subjected to ultraviolet rays (400 nm), electrons and electron holes are formed to form hydroxy radicals (OH) and superoxide having strong oxidation power. Create

The hydroxy radicals and super oxides oxidize and decompose the organic compounds into water and carbon dioxide.

In this way, air pollutants are oxidatively decomposed into harmless water and carbon dioxide, and organic compounds, which are pollutants in water, are decomposed into water and carbon dioxide. In addition, since bacteria are organic compounds, they are oxidatively decomposed and sterilized by the strong oxidation of the photocatalyst. In view of this, applying the photocatalyst to the carbonization board of the present invention helps to improve indoor environment by decomposing indoor pollutants.

Here, when the photocatalyst is applied to the surface of the veneer wood plate 10 and the veneer 30, it is preferable to coat the surface evenly on the ultrathin film. In addition, if the thickness of the photocatalyst is advantageous to adsorb organic substances on the surface, the thickness of about 200 nm may be appropriate considering the indoor pollution concentration at several ppm to several hundred ppb. Since the thickness is so thin that it is hard to see with the naked eye, the color and texture of the veneer wood plate 10 and veneer 30 can be preserved as it is.

In addition, the present invention may apply a thermosetting resin such as urea resin, melamine resin, phenol resin, etc. on the surface of the wood board 10 with veneer before forming the carbonized board 50. The thermosetting resin serves to reinforce and strengthen the surface strength as the phenol resin penetrates and solidifies into the pores of the veneer wood plate 10 when the carbonization operation is performed on the surface of the veneer wood plate 10.

More preferably, when applying the phenolic resin, it is preferable to apply carbonization to the wood plate 10 with veneer. When carbonizing wood veneer with veneer, some of the phenolic resins, which are susceptible to heat, are dissolved and partially impregnated into the carbonized board, and the rest is evaporated. Therefore, the surface strength is strengthened by the phenol resin impregnated into the carbonized board, and the rest is evaporated, so that the desired purpose for enhancing the surface strength can be achieved while minimizing the amount of the phenol resin applied.

1 is a state in which a carbonized furnace and an MDF panel and a weight body are stacked therein;

Figure 2 is a picture of the oak solid wood and carbonized state

3 is a picture of the maple wood and carbonized state

Figure 4 is a picture of a solid pine wood and carbonized state

Figure 5 is a photograph of a state of the paulownia wood and carbonized it

Figure 6 is a photograph of the MDF and carbonized state

Figure 7 is an exploded configuration of the wood board with veneer according to the invention

Figure 8 is a photograph of a wood board with veneer according to the invention

9 is a photo of the carbonization board according to the present invention

<Explanation of symbols for the main parts of the drawings>

10: wood board with veneer 20: wood board

30: veneer 40: adhesive

50: carbonized board

Claims (15)

The veneer sliced wood is adhered to the surface of the smooth wood board by the adhesive to form the wood board with the veneer, and the carbonized board with the wood pattern on the surface is constructed by carbonizing the wood board with the wood at high temperature. Carbonized board having a wood pattern characterized by. The method of claim 1, The wood board is a carbonized board having a wood pattern, characterized in that any one of the particle board (PB), fiber board (MDF), plywood, oriented cutting board (OSB). The method of claim 1, The carbonized board having a wood pattern, characterized in that the thickness of the veneer is 0.2 ~ 2mm. The method of claim 1, Carbonized board having a wood pattern, characterized in that the titanium oxide or manganese dioxide is mixed in the adhesive. The method according to claim 1 or 4, Wood board with a wood pattern, characterized in that the surface of the veneer wood veneer and veneer is coated with titanium oxide or manganese idealized. The method of claim 1, Carbonized board having a wood pattern, characterized in that the titanium oxide or manganese dioxide is coated on the surface of the carbide board. The method of claim 1, Carbonized board having a wood pattern, characterized in that the phenolic resin is applied to the wood veneer and veneer. The method of claim 1, Carbonized board having a wood pattern, characterized in that the surface of the carbonized board comprising a thermosetting resin made of any one of urea resin, melamine resin, phenol resin. Bonding the sliced veneer on the surface of the smooth wooden board with an adhesive to form a veneer wooden board; Stacking the wood veneer with veneer in a carbonization furnace, and pressing the laminate to press a predetermined pressure by laminating together with a weight having a weight to prevent deformation; Forming a carbonized board by blocking the carbonization furnace from the outside to make a non-oxidizing atmosphere and then isothermally heating the temperature of the carbonization furnace at least at 800 ° C. to form a wood pattern on the surface; And And removing the carbonized board from the carbonization furnace to at least polish the veneer area so that carbonized powder does not appear on the carbonized board. 10. The method of claim 9, Method of manufacturing a wood pattern carbonized board, characterized in that the titanium oxide or manganese dioxide is mixed in the adhesive. 11. The method according to claim 9 or 10, Prior to forming the carbonized board, the method of manufacturing a wood pattern carbonized board further comprising the step of applying titanium oxide or manganese dioxide on the surface of the veneer wood board. 10. The method of claim 9, After the polishing step, the method of manufacturing a wood pattern carbonized board further comprising the step of applying titanium oxide or manganese dioxide on the surface of the carbide board. 10. The method of claim 9, The polishing is a method of manufacturing a wood pattern carbonized board, characterized in that made of water sandpaper. The method of claim 13, Method of producing a wood pattern carbonized board further comprising a drying step made after the polishing step. 10. The method of claim 9, Prior to forming the carbonized board, the patterned carbonized board further comprises applying a thermosetting resin of any one of urea resin, melamine resin, phenol resin on the surface of the veneer wood veneer and veneer Manufacturing method.

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