JPH11221809A - Cork board and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cork board which can be used for various purposes such as building interior finishing materials, inner bottom sheets for shoes and sheets for pillows and can be related to improvement of health of a user, and a method for producing it. SOLUTION: A ground cork material is molded into a sheet-like shape with a resin binder and powdery or particulate charcoal 3 is incorporated in the cork sheet 1. The cork sheet 1 contg. the charcoal 3 like this not only exhibits excellent heat insulating properties, elastic properties, mothproof properties, sound absorbing qualities and air permeability but also has such effects as dehumidificating action, decodorizing action, negative ion releasing action and far infrared rays irradiating action and can improve health of residents and users.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cork board and a method for producing the same, and more particularly, to various kinds of cork board, a shoe insole, a pillow sheet, a sheet for attaching an affected part, etc. useful as a building interior material. The present invention relates to a cork plate which is used in various applications and produces an unprecedented effect.

[0002]

2. Description of the Related Art A cork board formed by hardening cork particles with a resin and molding the resin has characteristics such as having a unique texture, excellent heat insulation, elasticity, sound absorption, and insect repellency. It is used in building interior materials and furniture, especially in the field of interior.

[0003] For example, the applicant of the present application has disclosed in
As described in Japanese Patent No. 17831, a coating containing an opaque pigment having various colors and light resistance is applied to the surface of a cork substrate to form an anti-fading coating film. By generating a cork pattern due to the difference in the absorbency of the substrate with respect to the paint, a cork board was proposed in which the pattern and color tone unique to cork were maintained and the discoloration due to ultraviolet rays was suppressed.

[0004] Since this cork board has an appearance utilizing characteristics of cork and is excellent in durability,
For example, it is useful for flooring.

[0005]

In order to spread the cork board widely, it is necessary not only to make use of the features of the cork itself, but also to add some added value to increase the commercial value. Of course, at this time, it is meaningless if the texture unique to cork disappears.

Therefore, the present invention aims to increase the commercial value of the above-described cork board by adding an added value that has never been considered before, and to spread the cork board as a building interior material such as flooring. It is another object of the present invention to provide a cork board that can be used not only for building interior materials but also for various purposes.

Specifically, it has a unique texture of cork,
In addition to being excellent in heat insulation, elasticity, sound absorption, and insect repellency, architectural interior materials such as flooring, shoe insoles, sheets for pillows,
Used as a sheet for attaching the affected area, dehumidifying, deodorizing, sterilizing,
It is an object of the present invention to provide a novel cork board which produces effects such as mold prevention and promotion of user health, and a method for producing the same.

[0008]

In order to achieve the above-mentioned object, a cork board according to the present invention and a cork board manufactured by the method for manufacturing a cork board according to the present invention are manufactured by a method in which a crushed cork material is mixed with a resin binder. It is molded into a plate shape,
Contains powdered or granular charcoal.

A cork board containing powdered or granular charcoal has a unique texture of cork, and is excellent not only in heat insulation, elasticity, insect repellency, sound absorption and air permeability, but also in negative ion emission and far infrared rays. Has effects such as radiation and dehumidification, deodorization, germicidal protection, and fungicide.

In particular, if a paint containing powdered or granular charcoal is pressure-infiltrated into the surface of a cork substrate by a roll coater, not only the above-mentioned action, but also the layer containing powdered or granular charcoal can cause It also functions as a protective layer and improves light resistance.

The same effects as described above can be obtained by using this cork board as an insole for shoes, a sheet for pillows, a sheet for attaching an affected part, a mat for entrance or kitchen floor, a bathing aid, or the like.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a cork board according to the present invention and a method for manufacturing the same will be described.

The cork board to which the present invention is applied contains, for example, powdered or granular charcoal obtained by crushing charcoal or bamboo charcoal.

[0014] Charcoal is porous and easily absorbs moisture in the air and particles that cause malodor, and has a dehumidifying effect and a deodorizing effect by itself. In addition, charcoal has the property of emitting negative ions.

The actions of negative ions are to purify air and water, to activate oxidized senescent substances in the human body, to change acidic constitution to weakly alkaline constitution, and to purify blood by activating water, Activating cells, purifying plants and the like are known.

[0016] Charcoal has a characteristic of emitting far-infrared rays. It is known that the wavelength region of far infrared rays, particularly 8 to 14 microns, resonates molecules of living cells to warm the living body and activates the cells to promote metabolism.

As described above, the dehumidifying action and deodorizing action of charcoal,
In order to obtain the effect of negative ion emission and far-infrared radiation, airflow is required around charcoal. That is, it is necessary to maintain good air permeability between the porous charcoal and the indoor air that needs to be dehumidified and deodorized.

It has been proposed to simply put a lump of charcoal indoors or put it in water.
Even with this method, some effects can be expected due to the negative ions and far-infrared rays emitted from the charcoal.However, when this charcoal is crushed to increase the surface area, for example, the emission of the negative ions and the radiative action of far-infrared rays are enhanced. Can be
Further, by dispersing the crushed charcoal into a cork plate having good air permeability and containing the crushed charcoal, it is possible to effectively obtain the negative ion emission and far-infrared radiation action of the charcoal.

Therefore, the cork board 1 to which the present invention is applied is:
For example, as shown in FIG. 1, powdery or granular charcoal 3 whose surface area is increased by pulverization is mixed with a cork substrate having good air permeability formed based on cork grains 2. At this time, as will be described later, since the cork plate 1 is formed by a manufacturing method that utilizes bubbles that are abundant in cork cells as they are, according to the present invention, various methods such as dehumidification, deodorization, ion emission, and far-infrared radiation of the charcoal 3 are used. Effects can be maximized.

The charcoal used in the present invention is preferably bamboo charcoal or white charcoal. White charcoal is usually heated at a relatively low temperature in a charcoal kiln and gradually carbonized, and finally 800 to 10
It is refined (splashed) at a high temperature of 00 ° C, and the incandescent carbon material is taken out of the charcoal kiln and rapidly cooled to produce. This white coal has a hard and dense carbonaceous material and generally has an elemental composition of 90 to 96% carbon, 1 to 2.4% hydrogen, and 1 to oxygen.
2.4%, nitrogen 2-6.5%. Examples of white coal include Bincho charcoal made from Ubamekashi.

Of course, in the present invention, black charcoal, which is ordinary charcoal, may be used in addition to bamboo charcoal and white charcoal. However, the specific surface area of charcoal is 750~850m ² / g, hard charcoal, to for example the specific surface area of the charcoal is about 700 meters ² / g, specific surface area of the black carbon is about 250 meters ² / g, the ion release In order to effectively obtain the effect of far-infrared radiation, it is desirable to use bamboo charcoal or white charcoal.

The cork board 1 to which the present invention is applied is particularly suitable for use as a building interior material such as a floor, a wall, and a ceiling of a house. Cork board 1 containing powdered or granular charcoal 3
It absorbs indoor moisture and suppresses the occurrence and reproduction of molds and ticks. Thereby, atopic dermatitis and allergy of residents due to the occurrence of mites are prevented and improved. In addition, charcoal 3
Due to the excellent adsorption power of the odor, odor caused by pets, garbage, cigarettes and the like is effectively removed. Further, the powdery or granular charcoal emits and radiates negative ions and far-infrared rays into the room as described above, and purifies the indoor air.

Further, the cork board 1 to which the present invention is applied can be cut according to the shape of the shoe sole, inserted into the shoe, and used as an insole for the shoe. In this case, the air permeability of the cork board and the dehumidifying effect of the charcoal 3 according to the present invention prevent stuffiness in the shoes, and realize an environment optimal for treatment and prevention of athlete's foot and the like. Also, the odor in the shoes is effectively removed.
In addition, due to moderate pressurization and sweating caused by walking of the user, negative ions and far-infrared rays are efficiently emitted from the cork board 1, thereby improving the health of the user.

Further, the cork board 1 to which the present invention is applied can be formed into a sheet shape and used as a pillow sheet inserted between the pillow body and the pillow cover. The cork sheet has the breathability, flexibility, and cushioning properties of a cork board obtained by processing natural cork according to the principle of the present invention, and provides a comfortable feeling even when used as a pillow sheet.

The pillow into which the pillow sheet is inserted is subjected to an appropriate pressure due to the weight of the user's head and an appropriate humidity due to perspiration, whereby negative ions are efficiently removed from the cork sheet. Released.

Negative ions released from the cork sheet enter the body by skin respiration, etc., and the weak current generated by the ions stimulates body fluids and cells to increase metabolism, and changes body fluids such as blood from acidic to weakly alkaline. In addition, it suppresses the generation of active oxygen, which is a cause of adult diseases, improves the blood circulation of the user, recovers the feeling of fatigue, and naturally eliminates stress and the like.

Conventionally, a pillow mixed with bamboo charcoal grains has been proposed. However, the cork sheet of the present invention can be applied to any pillow, that is, the user can freely select the size and hardness of the pillow. Can be. In addition, since the cork board having good air permeability is used, the feeling of use is good, and the effects of negative ion emission and far infrared radiation of charcoal are enhanced.

Further, the cork board 1 to which the present invention is applied may be used as a sheet for attaching an affected part to treat stiff shoulders and lower back pain. In this case, the cork plate is formed thin so as to have flexibility, and a surface fastener is bonded to one surface,
The hook-and-loop fastener side is brought into contact with clothing, and the other side is brought into contact with the affected part. Alternatively, it may be used by being sandwiched between clothes. In any case, since the cork sheet is locked to the clothes by the hook-and-loop fastener, it does not easily shift.

As a result, appropriate negative ions are released from the charcoal 3, and the negative ions enter the body by skin respiration, and stimulate the user's metabolism by stimulating the weak current generated by the ions, thereby improving blood circulation and reducing fatigue. Recover,
Eliminates stiff shoulders and lower back pain naturally. Furthermore, the affected part to which the cork sheet is attached is warmed by the far infrared radiation from the charcoal 3, and the effect on the symptom that requires keeping the affected part warm, such as low back pain, is particularly large.

This cork sheet, unlike ordinary patches, lasts for a long period of time and does not lose its efficacy even when washed. In addition, since no adhesive is used on the affected part and the air permeability is good, there is no adverse effect such as the affected part becoming stuffy and itchy.

Further, the cork board 1 to which the present invention is applied can be put in a bathtub when taking a bath and used as a bathing aid. Also in this case, the bathing person's blood circulation is promoted by the negative ions and far-infrared rays emitted from the charcoal 3, and the body is warmed well, and effects such as not being easily cooled with hot water are obtained. This cork board does not need to be discarded every time the bath water is replaced like a normal bath salt, and has a long lasting effect, so that it can be used repeatedly and is economical. Also, it does not damage the bathtub or bath kettle.

Here, a first embodiment of a method for manufacturing a cork board to which the present invention is applied will be described.

First, the bark of cork oak is peeled off, and the cork raw material obtained by drying is crushed by a granulator. Further, a resin binder in which powdered or granular charcoal is mixed is added to the crushed cork raw material, mixed, stirred, and pressurized to harden. Thereby, for example, a cork plate 1 containing powdered or granular charcoal 3 as shown in FIG. 1 is formed.

In this case, the proper content of the charcoal 3 with respect to the cork board 1 is 10 to 30% by weight. If the content of the charcoal 3 is small, an appropriate dehumidifying, deodorizing and negative ion releasing effect cannot be obtained, while if the content of the charcoal 3 exceeds 30% by weight, the adhesive effect of the resin binder may be weakened.

Next, a second embodiment of the method for manufacturing a cork board to which the present invention is applied will be described.

First, the bark of the cork oak is peeled off, and the cork raw material obtained by drying is crushed by a granulator, and then a resin binder is added to the crushed cork, mixed, stirred and pressurized to harden. Form a cork substrate.

On the other hand, for example, powdery or granular charcoal obtained by pulverizing bamboo charcoal or white charcoal and a resin component are mixed to prepare a paint. This paint is pressed and penetrated into the cork substrate using a roll coater. As shown in FIG. 2, the roll coater has a gap 6 between a rubber roll 4, a first plating roll 5 circumscribing the rubber roll 4, and the rubber roll 4.
And a second plating roll 7 disposed so as to form the second plating roll.

The gap 6 has a thickness of, for example, 5 mm.
When performing pressure infiltration to the cork substrate, the thickness is set to about 4 mm. Thereby, pressure infiltration is performed at a suitable pressure. Further, by adjusting the interval of the gap 6, it is possible to change the strength of the pressurization, that is, the amount of penetration of the paint.

Here, the paint 9 is poured into a portion where the rubber roll 4 and the first plating roll 5 are in contact with each other, and the rubber roll 4 is
Then, the first plating roll 5 is rotated in the direction of arrow Q shown in FIG. 2 and the second plating roll 7 is rotated in the direction of arrow R, and the cork substrate 8 is inserted into the gap 6.

Thus, the rubber roll 4 rotates with the paint adhered to the outer peripheral surface. The cork substrate 8 inserted into the gap 6 is fed in the direction of arrow S shown in FIG. 2 while being sandwiched between the rubber roll 4 and the second plating roll 7.
At this time, the paint adhering to the outer peripheral surface of the rubber roll 4 is pressurized and penetrated into the surface of the cork substrate 8 in contact with the rubber roll 4.

The application of the paint by such pressurized infiltration is carried out for 1
By performing the process once or a plurality of times for one cork substrate 8, a cork plate 10 as shown in FIG. 3 is formed. In the gaps between the cork grains 11 of the cork plate 10, powdery or granular charcoal 12 is spread in a mesh form, and a pressure permeable layer 13 having a certain thickness is formed from the surface of the cork plate 10.

In the pressurized permeation layer 13, the powdery or granular charcoal 12 is well dispersed at intervals without adhering to each other, so that the air bubbles in the cork plate 10 are not sealed.
Thereby, the air permeability between the powdery or granular charcoal 12 and the indoor air is kept good, and the effects of the above-described dehumidifying action, deodorizing action, negative ion emission, and far infrared radiation are enhanced.
In addition, the cork board surface keeps the unique texture of cork,
Further, by using a paint containing a fluorine resin, a silicone resin, or the like, it is possible to provide the cork plate 10 which is excellent in durability and water resistance and in which the texture of cork is not impaired for a long time.

Cork board 10 manufactured by pressure infiltration method
Can be used in various forms such as a decorative board for a building interior material, a shoe insole, a sheet for a pillow, a sheet for attaching an affected part, a bathing aid, etc., similarly to the cork board 1 described with reference to FIG.

In the coating method in which a paint is applied to a cork substrate without using the pressure infiltration method, a thick coating film is formed on the surface of the cork substrate, and the permeability of the cork plate is lost. The texture is also impaired.

When a cork board produced by the pressure infiltration method is used as a decorative board for a building interior material, it is preferable to mix an inorganic pigment in the coating material in order to prevent fading of the cork board. As the pigment to be used, a pigment which does not easily transmit ultraviolet rays and has excellent light resistance is preferable, and examples thereof include graphite, carbon, red iron, rutile type titanium and the like. In addition, organic pigments such as benzene yellow, organic transparent red iron, lead white, zinc white anase type titanium and the like may be used, but these are slightly inferior in light resistance. Also, white,
By selecting a pigment having a color different from that of the conventional cork, such as pink, orange, and red, cork boards having various colors can be formed.

On the other hand, as the resin component used in the paint, any of those known as paint resins can be used, and a urethane resin or an acrylic resin may be used from the viewpoint of flexibility and the like. Fluororesins and silicone resins which are excellent in stain resistance, water resistance, light resistance and durability are most suitable.

By using these fluororesins or silicone resins as coating resins, the surface of the cork board is processed by fluororesin or silicon resin.
Water repellency, stain resistance, water resistance, light resistance, and durability are imparted. The resin for the paint may be selected according to the use of the cork board.

The above fluororesin and silicone resin are
It may be used only for surface processing. For example, a urethane resin or an acrylic resin may be used as a resin for the coating material, and a thin fluororesin or silicon resin may be coated on the surface. In this case, it is more effective to mix powdered or granular charcoal into the fluororesin or silicon resin coated on the surface.

In place of the above resin, a natural paint, for example, a natural adhesive or a natural paint available from Auro (Germany) can be used. This allows
A cork board containing only natural ingredients as a component is formed, and is particularly suitable when the cork board is applied to health products.

In order to apply the above-mentioned paint to the surface of the cork board, application techniques such as roll coating, spray coating and flow coating can be used. According to the pressure permeation method of permeating the paint under pressure, the texture, air permeability and texture of the surface of the natural cork board are maintained, which is very suitable.

The cork substrate is obtained by pulverizing cork raw material (cork oak bark) with a granulator and using an adhesive (resin binder).
And molded by pressing and heating. Therefore, very fine holes of the bark of the cork oak are present on the surface of the cork substrate. Further, since the cork substrate is a molded body of a large number of cork grains as described above, there are many vent holes.

When such a cork substrate is impregnated with a paint containing powdered or granular charcoal under pressure using a roll coater, the fine holes and concave patterns remain on the surface as they are, and there is also air permeability. Therefore, the texture and texture of the surface are maintained to the extent that they cannot be distinguished from the unprocessed cork board. Such a surface state can be obtained only when a roll coater is used, and it is difficult to obtain the above-mentioned effects because a coating film is formed on the surface by another coating method.

Of course, in order to obtain the above-mentioned surface condition, it is necessary to appropriately select the coating conditions when coating with a roll coater, and the amount of one coating is from 22 g / m ^{2 to} 44 g.
/ M ² , the viscosity of the paint at this time is 15 seconds
Preferably, it is 30 seconds.

In order to maintain the cork pattern on the cork substrate surface, the proportion of the pigment contained in the paint is important.
Too much pigment can result in a monotonous image of the entire surface. Therefore, the proportion of the whole pigment (the total amount of various pigments) contained in the coating material is 5 to 65% by weight, and particularly the proportion of the inorganic pigment having an anti-fading effect is 5 to 25% by weight.
And the rest as the resin component.

When the proportion of the pigment exceeds the above range, the background pattern of the cork substrate is hidden, and it becomes difficult to maintain the texture and texture of the cork. Conversely, if the proportion of the pigment is less than the above range, the effect of preventing fading is insufficient, and the light resistance is poor.

As described above, the application of the paint by the roll coater may be performed once or plural times. In the latter case, the color tone and the like of the obtained cork board can be slightly changed by selecting the number of times of application.

As described above, in the present invention, powdery or granular charcoal is preliminarily mixed into a resin binder when a cork plate is manufactured, or is formed into a paint on the surface of a molded cork substrate. However, these methods may be applied to the cork substrate alone, or both may be used in combination. Further, after a cork substrate is manufactured by previously mixing powdered or granular charcoal into a resin binder, a paint containing a pigment having an anti-fading effect may be applied to the surface of the cork substrate. Furthermore, powdery or granular charcoal may be mixed into the paint containing this pigment.

[0058]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of a cork board to which the present invention is applied will be described. In the following embodiments, granular bamboo charcoal (hereinafter referred to as bamboo charcoal granules) obtained by pulverizing bamboo charcoal subjected to refining at about 1000 ° C. is used.

Embodiment 1 This embodiment is an embodiment in which bamboo charcoal granules are mixed in a resin binder in advance to produce a cork board.

First, the bark of the cork oak is peeled off, and the cork raw material obtained by drying is crushed by a granulator. Then, bamboo charcoal particles are added to a resin binder (urethane resin adhesive), mixed, stirred and pressurized. Hardened. The amounts of the raw materials are as follows.

Cork raw material 60.0% by weight Resin binder (urethane resin adhesive) 20.0% by weight Bamboo charcoal granules 20.0% by weight Next, this is cut into a plate shape and its surface is polished to obtain a cork plate. Was. The obtained cork board was constituted as a molded product of a large number of crushed cork grains, and despite having bamboo charcoal grains, the appearance was not different from a natural cork board at all. When the cork board thus formed is used as a cork decorative board for flooring, for example, the thickness is about 5 mm.
mm, the thickness may be 1 to 3 mm when used as a wall cork decorative board, or may be sliced into a thin piece having a thickness of about 1 mm when used as a sheet for attaching an affected part, for example. .

Embodiment 2 This embodiment is an example in which a natural resin is used for the resin binder of Embodiment 1. The manufacturing method is the same as that of the first embodiment.

Cork raw material 60.0% by weight Natural resin binder 20.0% by weight Bamboo charcoal granules 20.0% by weight By using a natural resin as the resin binder as described above, the production cost is slightly increased. Can be formed. As the natural resin binder, for example, there is a natural adhesive NP-0381 manufactured by Auro Co., Germany.

Embodiment 3 This embodiment is an example in which a paint containing bamboo charcoal particles is infiltrated into the surface of a normal cork substrate or cork sheet under pressure.

First, the cork raw material obtained by peeling off the bark of the cork oak and drying is crushed by a granulator, and then a resin binder (silicone resin adhesive) is added, mixed and stirred, pressurized and solidified to obtain cork. A substrate was obtained.

On the other hand, a paint was prepared by mixing the resin component and bamboo charcoal granules in the following ratio.

Silicon resin paint 70.0% by weight Additive (curing agent) 5.0% by weight Bamboo charcoal granules 20.0% by weight Solvent 5.0% by weight Next, this paint was applied to the surface of the cork substrate using a roll coater. Was applied twice so as to have an application amount of 66 g / m ² . The viscosity of the paint at this time was 20 seconds in the viscosity cup.

The cork board thus obtained has air permeability on the surface as it is and has a bare skin, is breathable, and has a unique texture of cork.
The texture was well maintained and could not be distinguished from a natural cork board without any surface treatment.

Embodiment 4 This embodiment is an example in which a cork board made of only natural raw materials is formed while using the above-described pressure infiltration method.

First, the cork raw material obtained by peeling off the bark of the cork oak and drying is crushed by a granulator, and then a resin binder made of a natural resin is added, mixed and stirred, and pressurized and solidified to obtain a cork substrate. Was.

On the other hand, a natural resin component and bamboo charcoal granules were mixed at the following ratio to prepare a paint.

Natural resin coating 75.0% by weight Bamboo charcoal granules 20.0% by weight Vegetable thinning liquid 5.0% by weight Next, this coating was applied to the surface of the cork substrate using a roll coater in an amount of 66 g / m ² . It was applied in two separate applications. The viscosity of the paint at this time was 20 seconds in the viscosity cup. As the natural resin paint, for example, a natural water paint NP manufactured by Auro (Germany), Germany.
-0611 and NP-0621.

The cork board obtained in this way has the surface air holes and the wood skin remaining as it is, is breathable, maintains a good texture and texture unique to cork, and is not subjected to any surface treatment. I could not tell.

Example 5 This example is an example in which a cork plate having a desired color tone was manufactured by adding a pigment to the cork plate of Example 3.

The method of manufacturing the cork board was the same as in Example 2, except that the composition of the paint was as follows.

Silicon resin paint 65.0% by weight Pigmented silicone resin paint 5.0% by weight Additive (curing agent) 5.0% by weight Bamboo charcoal granules 20.0% by weight Solvent 5.0% by weight Such a cork board Is particularly suitable for use as a decorative board for building interior materials.

Embodiment 6 This embodiment is an example in which a cork board having a desired color tone is manufactured using only natural raw materials. The method for producing cork was the same as in Example 4, except that the composition of the paint was as follows.

Natural resin resin paint 70.0% by weight Natural resin paint containing a natural colorant 5.0% by weight Bamboo charcoal granules 20.0% by weight Vegetable thinning liquid 5.0% by weight As a natural colorant, for example, Auro of Germany (AUR
O) natural colorants NP-0323 and NP-0330.

Example 7 A paint containing bamboo charcoal was further infiltrated into the surface of the cork board containing bamboo charcoal prepared in Example 1 by the same method as in Example 3.

As a result, there was obtained a cork board which maintained good texture and texture peculiar to cork and contained bamboo charcoal grains both inside and on the surface of the cork board.

[0081]

The cork board according to the present invention is obtained by forming a crushed cork material into a plate shape with a resin binder and contains powdery or granular charcoal.

The surface area is increased by crushing the charcoal into powder or granules, and furthermore, by incorporating the granulated charcoal in a corrugated plate having good air permeability, air is formed around the charcoal particles. A flow is generated, and the air around the cork board is effectively dehumidified and deodorized. Further, according to the present invention, with the above-described configuration, it is possible to maximize the negative ion emission and far-infrared radiation effect of charcoal.

When a cork board containing powdered or granular charcoal is used as a cork decorative board as a building interior material, indoor moisture is absorbed, and the occurrence and reproduction of mold and mites are suppressed, and the health of residents is improved. Maintained and improved. Further, the bad smell in the room can be removed by the deodorizing action of the charcoal.
Further, negative ions and far-infrared rays are routinely emitted from the powdery or granular charcoal, thereby purifying the indoor air and improving the occupant's health.

Further, a cork board containing powdered or granular charcoal is insole, a sheet for pillows, a sheet for attaching an affected part,
By using it as a mat for the entrance or the floor of a kitchen, an auxiliary material for bathing, etc., it is possible to remove odors, recover fatigue of the user, and promote health.

As described above, according to the present invention, it is possible to provide a cork board having a high commercial value and having an unprecedented additional effect when used as a building interior material or the like.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a side surface of a cork board to which the present invention is applied.

FIG. 2 is a diagram showing a roll coater.

FIG. 3 is a conceptual diagram of a side surface of a cork plate manufactured by a pressure infiltration method.

[Explanation of symbols]

 1 cork board, 2 cork grains, 3 charcoal

Claims (15)

[Claims] 1. A cork board in which a crushed cork material is formed into a plate shape by a resin binder containing powdery or granular charcoal. 2. The composition ratio of said powdery or granular charcoal is 1
The cork board according to claim 1, wherein the content is 0 to 30% by weight, and the balance is a resin binder and a cork material. 3. The cork board according to claim 1, wherein the cork board is a decorative board for a building interior material. 4. The cork board according to claim 1, wherein the cork board is cut into a shape to be inserted into a shoe, and is used as an insole of the shoe. 5. The cork plate is formed in a sheet shape,
The cork board according to claim 1, which is used as a pillow sheet inserted between the pillow body and the pillow cover. 6. The cork board according to claim 1, wherein the cork board is formed to have flexibility, and a hook-and-loop fastener is adhered to one surface to be used as a sheet for attaching an affected part. . 7. A cork substrate in which a crushed cork material is formed into a plate shape by a resin binder, wherein the cork substrate has a surface on which a mixed paint containing a resin component and powdery or granular charcoal is pressurized and permeated. A cork plate comprising a pressure-penetrated layer formed. 8. The cork board according to claim 7, wherein in the mixed paint, the component ratio of the powdery or granular charcoal is 10 to 30% by weight. 9. The cork board according to claim 7, wherein the mixed paint further contains an opaque paint, and the cork board is a decorative board for a building interior material. 10. The cork board according to claim 7, wherein the cork board is cut into a shape to be inserted into a shoe, and is used as an insole of the shoe. 11. The cork board according to claim 7, wherein the cork board is formed in a sheet shape, and is used as a pillow sheet inserted between the pillow body and the pillow cover. 12. The cork board according to claim 7, wherein the cork board is formed to have flexibility, and a surface fastener is adhered to one surface to be used as a sheet for attaching an affected part. . 13. A step of mixing and stirring the crushed cork material, the resin binder, and the powdery or granular charcoal, and pressurizing the mixed and stirred cork material, the resinous binder, and the powdery or granular charcoal. A method for producing a cork board, comprising the steps of: 14. A step of mixing and stirring the crushed cork material and the resin binder; a step of pressing and mixing the mixed and stirred cork material and the resin binder to form a cork substrate; Or a step of infiltrating a mixed paint containing granular charcoal under pressure into the cork substrate. 15. The method for producing a cork board according to claim 14, wherein, in the step of infiltrating under pressure, the value of the mixed paint applied to the cork board is 11 to 110 g / m ² .