KR101338025B1 - Flooring using high temperature heat treatment wood - Google Patents

Abstract

The present invention is made of a single layer of wood, not a laminated structure, the high temperature heat treatment is made so that the risk of rotting wood is smoothly prevented even if used for a long time, and the heat conduction is smooth, so that the heat loss is reduced when used for ondol flooring and moisture It relates to a flooring using a high-temperature heat-treated wood to lower the rate of change by the dimensional stability, the flooring is a first processing step of processing natural wood into a plate having a certain size; A plate drying step of placing the processed plate in a drying chamber and drying the plate at a temperature between 40 ° C. and 90 ° C. such that a moisture content of the processed plate is 12% or less; A high temperature heat treatment step of placing the first dried sheet in a heat treatment chamber and performing heat treatment by heating in a vacuum state at a temperature between 180 ° C. and 240 ° C. for 24 hours; A plate aging step of aging the plate after the heat treatment is stored in a aging room having a constant temperature and humidity for 2 days to 3 days; A secondary processing step of cutting the aged plate by a standard plate of a predetermined size to meet the specifications of the flooring material; The elastic member is attached to one side of the standard plate is made of a stretchable member attaching step of attaching a stretchable member of a material.

Description

Flooring using high temperature heat treatment wood {FLOORING USING HIGH TEMPERATURE HEAT TREATMENT WOOD}

The present invention relates to a flooring material using a high temperature heat treatment wood, and more particularly, it is made of a single layer of wood rather than a laminated structure, and the high temperature heat treatment is made so that the risk of rotting wood is smoothly prevented even when used for a long time and the heat conduction is made smoothly. The present invention relates to a flooring material using high-temperature heat-treated wood to reduce heat loss when used for an ondol floor and to improve dimensional stability due to a low rate of change by moisture.

In general, floorboards having an upper layer thickness of less than 2 mm are called ondol (plywood) floors, and floorboards of 2 mm or more are generally referred to as solid floors. The general wood floor is composed of a surface material of 2 mm or more and a plywood or strip of 5 to 7 mm.

While ondol (plywood) flooring is limited in specifications to width dimensions 75, 92 mm and length dimensions 900 mm, solid floors are manufactured in various specifications in width dimensions 65 to 210 mm and length dimensions from 360 to 2,525 mm. There are also products that are impregnated with WPC (Wood Plastic Composite) to strengthen the surface.

However, unlike ondol floor using thin veneer, solid floor using 2mm or more veneer has weak dimensional stability and warping due to the change of moisture condition, which is weak to Korean native ondol culture.

In addition, solid wood flooring on the market includes a base plate of 2 mm or more in the upper part, and a base material in the form of plywood or a chord (gluing each material having a relatively small dimension relative to the width of the surface material) in the lower part. Due to the up and down asymmetrical structure, the overall structure is not balanced, there is a disadvantage that the basic physical properties of the product is lower than ondol floor.

In order to solve such drawbacks, there is a Korean Patent No. 0970112 "symmetrical floor coverings using heat-treated wood and its manufacturing method" (2010.07.07), which is shown in Figure 3 to explain the configuration Is as follows.

As shown in FIG. 3, the conventional heat treatment flooring is composed of a surface treatment layer 10, a heat treatment wood layer 20, a base material layer 30, and a heat treatment wood layer 20 from above.

The surface treatment layer 10 is made of a conventional ultraviolet curable or thermosetting surface treatment layer.

The heat-treated wood layer 20 is a wood layer heat-induced dimensional stabilization by heating at high temperature, when the heat treatment of the wood, the dimensional stability is improved as the water content of the wood decreases, and the wood turns brown and looks luxurious.

The heat-treated wood layer 20 is preferably composed of a single plate of 2 mm or more heat-treated at a temperature of 150 ℃ to 230 ℃, it is preferable that both the upper layer and the lower layer of the same material and the same thickness for the complete symmetry structure. General timber can be used as the veneer.

The base layer 30 is made of wood-based boards, such as solid wood, water-resistant plywood, MDF, HDF, particle board, resin wood flour mixing board.

However, the above-described conventional techniques have the following problems.

The conventional floorboard material is a structure in which multiple plywood and heat-treated wood layers are simply laminated, and the moisture of the floor is directly transferred to the plywood, so that the risk of wood decay and heat conduction for a long period of time is low. There was a problem that a lot of heat loss occurs until the rise.

In addition, the conventional flooring material has a problem that the overall configuration is made only of wood and plywood, the change rate due to moisture is large, so that the shrinkage rate and expansion rate are large.

Korean Registered Patent No. 0970112 "Symmetric Structure Flooring Material Applying Heat Treated Wood and Its Manufacturing Method" (2010.07.07)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

An object of the present invention is made of a single layer of wood, not a laminated structure, the high temperature heat treatment is made so that the risk of rotting wood is smoothly prevented even if used for a long time and the heat conduction is smooth so that the heat loss is reduced when using for ondol floors And it provides a flooring using high temperature heat-treated wood to improve the dimensional stability due to the low rate of change by moisture.

In addition, another object of the present invention is to provide a flooring material using a high-temperature heat treatment wood to form an oil permeable layer on the upper surface of the flooring material to improve the texture and aesthetics of the surface while blocking the penetration of moisture through the outer surface.

In order to achieve the above object, a "manufacturing method of flooring using high temperature heat treatment wood" according to the present invention includes a first processing step of processing natural wood into a plate having a predetermined size; A plate drying step of placing the processed plate in a drying chamber and drying the plate at a temperature between 40 ° C. and 90 ° C. such that a moisture content of the processed plate is 12% or less; A high temperature heat treatment step of placing the first dried sheet in a heat treatment chamber and performing heat treatment by heating in a vacuum state at a temperature between 180 ° C. and 240 ° C. for 24 hours; A plate aging step of aging the plate after the heat treatment is stored in a aging room having a constant temperature and humidity for 2 days to 3 days; A secondary processing step of cutting the aged plate by a standard plate of a predetermined size to meet the specifications of the flooring material; An elastic member attaching step of attaching an elastic member made of an elastic material to one side of the standard plate; .

In addition, according to the present invention, "the method of manufacturing a flooring material using a high temperature heat treatment wood", after the step of attaching the elastic member, after applying the natural oil on the upper surface of the standard plate, the natural oil from the upper surface of the standard plate to the inside Storing the oil permeation layer at room temperature to penetrate to form an oil permeation layer on the surface layer of the standard plate; And further comprising:

In addition, the elastic member in the step of attaching the elastic member of the "manufacturing method of flooring using high temperature heat treatment wood" according to the present invention is characterized in that the silicone rubber or urethane rubber.

In addition, the temperature of the aging chamber in the step of aging the plate of the "method of manufacturing a flooring material using high temperature heat treatment wood" according to the present invention is about 20 ℃, the humidity of the aging chamber is characterized in that between 60% to 70%.

On the other hand, in order to achieve the above object, "floor material using high temperature heat treatment wood" according to the present invention is a flooring material produced by the above-described manufacturing method, the flooring material is a standard plate made of high-temperature heat-treated wood, and the standard plate Characterized in that it comprises an elastic member, which is attached to one side of the.

In addition, the standard plate of the "floor using a high temperature heat treatment wood" according to the present invention, a stone jaw formed on one side, the insertion groove formed on the other side of the standard plate corresponding to the stone jaw, and the upper surface of the standard plate An oil penetrating layer is formed by penetrating the natural oil into the inner side, wherein the elastic member, the fitting groove is formed on one side of the elastic member so that the stone jaw is inserted, and the elastic member of the elastic member to be inserted into the insertion groove It characterized in that it comprises a space portion formed on the lower surface of the elastic member such that the insertion jaw formed on the other side and the space between the standard plate and the standard plate corresponding to the standard plate.

As described above, the present invention is made of a single wood layer, not a laminated structure, the high temperature heat treatment is made to prevent the risk of rotting wood even when used for a long time, and the heat conduction smoothly made heat loss during use for ondol floors It is reduced, and the change rate by moisture is low, and it has an effect which improves dimensional stability.

In addition, the present invention, by forming an oil permeation layer on the upper surface of the flooring material has an effect of improving the texture and aesthetics of the surface, the penetration of moisture through the outer surface is reduced, the risk of rotting by water is reduced and the life is significantly extended. .

1 is a step showing the manufacturing method of the flooring according to the invention,
Figure 2 is a schematic longitudinal cross-sectional view showing a flooring according to the present invention,
Figure 3 is a schematic exploded cross-sectional view showing an example of a conventional flooring.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a step diagram showing a method of manufacturing a flooring according to the present invention.

As shown in the drawing, a method of manufacturing a flooring material using a high temperature heat treatment wood according to the present invention includes a first processing step (S10) of processing natural wood into a plate and a plate drying step (S20) of drying the processed plate at a low temperature. And, a high temperature heat treatment step (S30) for heat treating the plate at a high temperature, a plate maturing step (S40) for aging the plate, a secondary processing step (S50) for processing the plate into a standard plate, and stretched to the standard plate Stretching member attaching step (S60) for attaching the member, and oil penetrating layer forming step (S70) for penetrating the oil on the upper surface of the standard plate.

The first processing step (S10) is a step of processing natural wood into a plate having a certain size. This step is to cut the natural wood, that is, the solid wood into a plate material in a state of high moisture content, the step of processing the natural wood to the plate to facilitate processing to the standard plate while easy to dry and heat treatment.

The plate drying step (S20) is a step of putting the processed plate in a drying chamber so as to dry the moisture content of the processed plate to 12% or less at a temperature between 40 ℃ to 90 ℃, at a temperature lower than the flash point The plate is gradually heated to dry and serves to lower the moisture content of the plate below a certain level.

The drying temperature of the plate drying step (S20) is 40 ℃ to 90 ℃, which takes a lot of time to dry when the drying temperature is lower than 40 ℃, the productivity is lowered and dried too rapidly when the drying temperature is greater than 90 ℃ This is because there is a risk that the sheet is warped, ruptured, split or cracked.

The moisture content of the plate in the plate drying step (S20) is 12% or less to heat the natural wood, that is, the moisture content of 50% or more to the state of equilibrium moisture content of 12% moisture content. When the wood is in equilibrium moisture content with a water content of 12%, the wood is in a state of repeating moisture absorption and drying according to the ambient humidity of the state of use.

As such, the determination of whether the moisture content is 12% or less during drying of the sheet is determined by the operator measuring the moisture content of the sheet in the drying chamber through a known moisture meter.

The high temperature heat treatment step (S30) is a step to heat the heat treatment by placing the first dried plate in a heat treatment chamber in a vacuum state for 24 hours at a temperature between 180 ℃ to 240 ℃, this step is the moisture content of the plate Make 4% to 6% of the state that the plate is light and serves to heat-treat in a state difficult to absorb moisture.

In the high temperature heat treatment step (S30), the heat treatment temperature is between 180 ° C to 240 ° C, which means that if the heat treatment temperature is lower than 180 ° C, a lot of time is required to heat-treat the sheet material having a moisture content of 4% to 6%, resulting in decreased productivity. This is because if the heat treatment temperature is higher than 240 ° C., the temperature is equal to or higher than the flash point or carbonization point of the wood and the plate is ignited or carbonized.

The plate is dried in stages through the plate drying step (S20) and the high temperature heat treatment step (S30) and is light and has a water content of 4% to 6% in a state in which uniformity, splitting, rupture, distortion, and deformation are prevented. It is a solid plate with good dimensional stability.

The plate aging step (S40) is a step of aging by storing the plate heat treatment is completed in a aging room having a constant temperature and humidity for 2 to 3 days, this step is used to expose the plate to heat treatment is completed at room temperature It's about adapting to the environment.

In the plate aging step (S40), the temperature of the aging room is about 20 ℃, the humidity of the aging room is preferably between 60% to 70%, which is by aging the plate in accordance with the general temperature and humidity of the room, This is to allow the board to adapt smoothly to the indoor environment.

The secondary processing step (S50) is a step of processing by cutting the aged plate into a standard plate of a certain size in accordance with the specifications of the flooring material, this step is easy to be installed on the floor surface of the room by cutting the plate material into the standard plate It is processed in one form.

The elastic member attaching step (S60) is a step of attaching an elastic member made of an elastic material to one side of the standard plate. This step is to form a flooring by combining the standard plate and the standard plate in a state that can stretch each other through the elastic member. That is, the standard plate is coupled to each other in a state in which the elastic member is disposed so that the standard member accommodates some distortion or deformation caused by external environment or external force after the standard plate is installed on the floor of the room, thereby preventing damage to the standard plate. To be prevented.

It is preferable that the material of the elastic member having such a role is silicone rubber or urethane rubber, since the silicone rubber or urethane rubber has heat resistance, cold resistance, chemical resistance, weather resistance, flame resistance, water resistance and high elasticity.

The oil penetrating layer forming step (S70) is a step of forming an oil penetrating layer on the surface layer of the standard plate by applying a natural oil to the upper surface of the standard plate and stored at room temperature so that the natural oil penetrates inward from the upper surface of the standard plate to be. This step is to form an oil permeation layer on the upper surface of the standard plate to improve the texture and aesthetics of the upper surface of the standard plate while preventing the penetration of moisture.

These steps are carried out sequentially to produce indoor flooring, in particular, flooring flooring for ondol flooring is made of a single layer of wood rather than a laminated structure, high temperature heat treatment to prevent the risk of rotting wood even if used for a long time It is a useful invention that the heat conduction is made to reduce the heat loss during use for the ondol floor and the dimensional stability is improved due to the low change rate due to moisture.

Figure 2 is a schematic longitudinal cross-sectional view showing a flooring according to the present invention.

As shown in the drawing, the flooring manufactured according to the present manufacturing method includes a standard plate 100 made of high-temperature heat-treated wood, and an elastic member 200 attached to one side of the standard plate 100.

The standard plate 100 is formed by cutting a plate heat-treated to a size used as a flooring material, and serves to form a basic floor surface of the flooring material.

The standard plate 100, which serves as described above, includes a stepping protrusion 101 formed on one side thereof, an insertion groove 102 formed on the other side of the standard plate 100 corresponding to the stepping 101, and the The oil penetrating layer 103 is formed by penetrating the natural oil in the upper surface of the standard plate 100.

The jaw 101 is a portion that is fitted and fixed to the elastic member 200, the insertion groove 102 is a portion to which the elastic member 200 is fitted and fixed, such a projection (101) and the insertion groove ( 102 is to allow the elastic member 200 to be smoothly coupled to the side of the standard plate 100.

The oil penetrating layer 103 is formed by applying a natural oil to the upper surface of the standard plate 100 so as to soak naturally, while improving the texture or feel of the upper surface of the standard plate 100 while improving the aesthetics It serves to improve the moisture-proof function to prevent the penetration of moisture of the standard plate 100.

The stretchable member 200 is disposed between the standard plate 100 and the standard plate 100 so that the standard plate 100 is temporarily deformed or distorted due to external force being applied to the standard plate 100 or changes in the external environment. When the buffer is supported while serving to form a buffer support layer between the standard plate (100).

The expansion and contraction member 200 that serves as described above has an insertion groove 201 formed on one side of the expansion and contraction member 200 so that the stone jaw 101 is inserted, and the expansion and contraction member is inserted into the insertion groove 102. A space formed on the bottom surface of the elastic member 200 such that an empty space is formed between the insertion jaw 202 formed on the other side of the member 200 and the standard plate 100 and the standard plate 100 corresponding thereto. Section 203.

The fitting groove 201 is a portion where the stone jaw 101 is inserted, the insertion jaw 202 is a portion that is inserted into the insertion groove 102, the fitting groove 201 and the insertion jaw 202 is The elastic member 200 is to be coupled to the side of the standard plate 100 smoothly.

The space part 203 is an empty space formed on the lower surface of the elastic member 200, and provides a space in which a portion of the elastic member 200 can be moved when the elastic member 200 is increased by an external force. It plays a role.

The space portion 203 which serves as described above may be easily formed by making the thickness of the stretchable member 200 shorter than the thickness of the standard plate 100.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

100: Standard Edition
101: stone jaw 102: insertion groove
103: oil penetration layer
200: elastic member
201: fitting groove 202: insertion jaw
203: space part

Claims (6)

A first processing step (S10) of processing natural wood into a plate having a predetermined size;
A plate drying step (S20) of putting the processed plate into a drying chamber and drying the water to a water content of the processed plate at 12 ° C. or less at a temperature between 40 ° C. and 90 ° C .;
A high temperature heat treatment step (S30) of putting the first dried plate in a heat treatment chamber and heating the same in a vacuum state at a temperature between 180 ° C. and 240 ° C. for 24 hours;
A plate aging step (S40) of aging the plate after the heat treatment is completed by storing in a aging room having a constant temperature and humidity for 2 days to 3 days;
A secondary processing step (S50) of cutting the aged plate material into a standard plate of a predetermined size to meet the specifications of the flooring material;
An elastic member attaching step (S60) of attaching an elastic member made of an elastic material to one side of the standard plate; It is a flooring manufactured by the manufacturing method of the flooring using the high temperature heat processing wood containing,
The flooring material,
Standard plate 100 made of high-temperature heat-treated wood,
It includes an elastic member 200 which is attached to one side of the standard plate 100,
The standard plate 100,
And the stone jaw 101 formed on one side thereof,
Insertion groove 102 formed on the other side of the standard plate 100 in correspondence with the stepping 101,
It includes an oil permeation layer 103 formed by penetrating the natural oil inward from the upper surface of the standard plate 100,
The stretching member 200,
Fitting groove 201 formed on one side of the elastic member 200 to insert the stone jaw 101;
Insertion jaw 202 formed on the other side of the elastic member 200 to be inserted into the insertion groove 102,
Using a high temperature heat treatment wood, characterized in that it comprises a space portion 203 formed on the lower surface of the elastic member 200 so that the empty space between the standard plate 100 and the standard plate 100 corresponding thereto Flooring.
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