Board, method for manufacturing board, and table

Abstract

To provide a board that contributes to expanding reuse applications of coffee grounds.SOLUTION: A board (1) comprises a wood chip layer (10) composed of first wood chips (12), and a coffee grounds layer (20) laminated on the wood chip layer (10) and composed of at least coffee grounds (21).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a board, a method for manufacturing a board, and a table. [Background technology]

[0002] The Sustainable Development Goals (SDGs) adopted by the United Nations include waste management and reduction as a goal under Goal 12, "Responsible Consumption and Production." Summary of the Invention [Problem to be solved by the invention]

[0003] Coffee is enjoyed by so many people that it is considered one of the world's three most popular beverages, and effectively reusing coffee grounds after brewing coffee has great social significance, including contributing to the SDGs mentioned above.

[0004] The present disclosure aims to provide a board, a method for manufacturing a board, and a table that contribute to expanding the uses for recycling coffee grounds. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, a board according to one embodiment of the present disclosure includes a wood chip layer composed of first wood chips, and a coffee grounds layer laminated on the wood chip layer and composed of at least coffee grounds.

[0006] In order to solve the above-mentioned problems, a method for manufacturing a board according to one embodiment of the present disclosure includes the steps of forming a wood chip layer composed of first wood chips, stacking a coffee grounds layer composed of at least coffee grounds on the wood chip layer, and pressing the wood chip layer and the coffee grounds layer together. [Effects of the Invention]

[0007] It is possible to provide a board, a method for manufacturing a board, and a table that contribute to expanding the uses for recycling coffee grounds. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a board according to the present disclosure. [Figure 2] FIG. 10 is a perspective view of another board according to the present disclosure. [Figure 3] FIG. 10 is a cross-sectional view of another hose according to the present disclosure. [Figure 4] FIG. 10 is a cross-sectional view of another board according to the present disclosure. [Figure 5] FIG. 1 is a cross-sectional view of a table according to the present disclosure. [Figure 6] 1 is a flowchart illustrating a method for manufacturing a board according to the present disclosure. [Figure 7] 1 is a photograph of a board according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to FIG.

[0010] [Coffee grounds] Coffee grounds are the wet coffee grounds and caffeine-containing residues that remain after brewing coffee. Coffee grounds are a by-product of the coffee extraction process. Because coffee grounds are typically discarded, effectively reusing them can contribute to waste management and reduction. Coffee grounds have traditionally been partially reused. However, they have typically been used as compost or in deodorizers, where the coffee grounds are used as is.

[0011] The present disclosure provides a board that enables coffee grounds to be used in applications different from conventional applications, and a table or the like that uses the board. The board of the present disclosure will be described below with reference to FIG.

[0012] [Board 1] Fig. 1 is a perspective view of a board 1 according to the present disclosure. XYZ coordinates are shown in Fig. 1. The XY plane formed by the X and Y axes coincides with the main surface of the flat board 1, and the Z axis perpendicular to the XY axes coincides with the thickness direction of the board 1.

[0013] The board 1 includes a wood chip layer 10 made of first wood chips 12, and a coffee grounds layer 20 laminated on the wood chip layer 10 and made of at least coffee grounds 21.

[0014] [Wood chip layer 10] The wood chip layer 10 is made up of wood chips (first wood chips 12) obtained by finely chipping tree trunks, branches, bark, or the like.

[0015] The first wood chips 12 are not limited to a specific type of wood, and may be softwood (such as cedar or cypress) or hardwood (such as cherry, walnut, beech, or oak). The first wood chips 12 may be a mixture of chips from multiple types of wood. The first wood chips 12 may be either cut chips cut into flakes with a blade or crushed chips crushed with a hammer crusher or the like. The shape or particle size distribution of the first wood chips 12 may be adjusted appropriately depending on the intended use of the board 1. The first wood chips 12 are bonded to each other via an adhesive (not shown). The adhesive may be, for example, a synthetic resin adhesive, an alkyd adhesive, an acrylic adhesive, a hot melt adhesive, or a thermosetting adhesive.

[0016] The lengths of the wood chip layer 10 in the X and Y directions may be adjusted as appropriate to suit the application of the board 1. The length of the wood chip layer 10 in the Z direction (thickness of the wood chip layer 10) may be adjusted as appropriate to suit the setting conditions of the press treatment described below. As an example, the length of the wood chip layer 10 in the Z direction is 3 to 15 mm.

[0017] The wood chip layer 10 has a coffee grounds layer 20 laminated on its upper surface (upward in the Z-axis direction in FIG. 1). The wood chip layer 10 and the coffee grounds layer 20 are bonded to each other, for example, by a press treatment described below.

[0018] [Coffee grounds layer 20] The coffee grounds layer 20 is composed of at least coffee grounds 21. The coffee grounds 21 do not need to be derived from a specific coffee bean, and may be a mixture of coffee grounds 21 derived from multiple types of coffee beans. In the board 1, the coffee grounds layer 20 includes second wood chips 22.

[0019] The second wood chips 22 function as a reinforcing material that increases the strength (bending strength, peel strength, etc.) of the coffee grounds layer 20 (or board 1). The second wood chips 22 also add color as wood chips to the single-color (black) coffee grounds 21, enhancing the design of the board 1. By adjusting the content of the second wood chips 22, the design of the board 1 can be varied widely.

[0020] The second wood chips 22 are not limited to a specific type of wood, and may be softwood (such as cedar or cypress) or hardwood (such as cherry, walnut, beech, or oak). The second wood chips 22 may be a mixture of chips from multiple types of wood. The second wood chips 22 may be either cut chips cut into flakes with a blade or crushed chips crushed with a hammer crusher or the like. The shape or particle size distribution of the second wood chips 22 may be adjusted appropriately depending on the intended use of the board 1. The second wood chips 22 are bonded to the coffee grounds 21 or to each other with an adhesive. The adhesive may be, for example, a synthetic resin adhesive, an alkyd adhesive, an acrylic adhesive, a hot-melt adhesive, or a thermosetting resin. The adhesive used in the coffee grounds layer 20 may be the same as or different from the adhesive used in the wood chip layer 10.

[0021] At least one of the first wood chips 12 and the second wood chips 22 may be chipped thinned wood. The use of thinned wood is expected to have several advantages. For example, thinning can contribute to forestry by promoting the growth of forest trees and maintaining the health of forests. The use of thinned wood can also increase the supply of wood resources. Examples of thinned wood include cedar and cypress. Cedar has a reddish hue. The type of thinned wood may be selected appropriately depending on its characteristics, such as selecting cedar when a reddish hue is desired in board 1, or selecting cypress when a reddish hue is desired in board 1.

[0022] [Board 2] Next, board 2, which is another board according to the present disclosure, will be described with reference to Fig. 2. Fig. 2 is a perspective view of board 2 according to the present disclosure.

[0023] The board 2 includes a wood chip layer 10 made of first wood chips 12, and a coffee grounds layer 20 laminated on the wood chip layer 10 and made of coffee grounds 21. The board 2 differs from the board 1 in the following points.

[0024] Specifically, the board 2 does not include the second wood chips 22 in the coffee grounds layer 20. Depending on the use of the board 2, the coffee grounds layer 20 may not require high strength. Furthermore, by increasing the proportion of adhesive mixed with the coffee grounds 21 in the process of forming the coffee grounds layer 20, the strength of the coffee grounds layer 20 can be ensured. In such cases, the board 2 does not necessarily need to include the second wood chips 22 in the coffee grounds layer 20.

[0025] [Board 3] Next, board 3, which is another board according to the present disclosure, will be described with reference to Fig. 3. Fig. 3 is a cross-sectional view of board 3 according to the present disclosure.

[0026] The board 3 includes a wood chip layer 10 made of first wood chips 12, and a coffee grounds layer 20 laminated on the wood chip layer 10 and made of at least coffee grounds 21. The board 3 further includes a surface protection layer 30 that protects the surface of the coffee grounds layer 20. The surface protection layer 30 may be made of a resin material (such as a fluororesin).

[0027] If the coffee grounds 21 are exposed, there is a possibility that the color of the coffee grounds 21 will adhere to the user when the user of the board touches the surface of the coffee grounds layer 20. In this regard, the board 3 can prevent direct contact between the user and the coffee grounds layer 20 by using the surface protection layer 30, thereby reducing the possibility that the color of the coffee grounds 21 will adhere to the user.

[0028] It should be noted that the surface protective layer 30 is not essential for the board according to the present disclosure. The coffee grounds 21 have an aromatic effect of spreading the coffee aroma throughout the space and a deodorizing effect of absorbing and eliminating unpleasant odor components within the space. Therefore, if the coffee grounds layer 20 is provided in a position that can avoid direct contact with users, the coffee grounds layer 20 may be exposed to the atmosphere. This allows the aromatic and deodorizing effects of the coffee grounds 21 to be provided to the surrounding environment.

[0029] [Board 4] Next, board 4, which is another board according to the present disclosure, will be described with reference to Fig. 4. Fig. 4 is a cross-sectional view of board 4 according to the present disclosure.

[0030] The board 4 includes a wood chip layer 10 made up of first wood chips 12, and a coffee grounds layer 20 made up of at least coffee grounds 21 and laminated on the wood chip layer 10. The board 4 also has, but is not limited to, a surface protection layer 30 that protects the surface of the coffee grounds layer 20. Furthermore, when the board 4 is viewed from the wood chip layer 10 as the coffee grounds layer 20 side, a plate-like member 40 is laminated on the back surface of the wood chip layer 10.

[0031] According to the above-described configuration, the board 4 can be provided by laminating the plate-like member 40 on the back surface of the wood chip layer 10. This allows the board 4 to provide various added value, such as enhancing the design, reducing manufacturing costs, and reducing the weight of the board. This also increases the appeal of the board 4, and further expands the uses for recycling the coffee grounds 21 (for tables, etc.).

[0032] The plate-like member 40 may be, for example, a particle board, a plastic board, a medium density fiberboard, or a metal plate.

[0033] [Board Uses] Next, a table 50 according to the present disclosure will be described with reference to Fig. 5. Fig. 5 is a cross-sectional view of the table 50 according to the present disclosure.

[0034] Table 50 is a table that uses board 1 as a tabletop. Table 50 may use board 2, board 3, or board 4 instead of board 1. With this configuration, table 50 can provide a tabletop that has the effects of board 1, board 2, board 3, and board 4, respectively.

[0035] Board 1, board 2, board 3, and board 4 are not limited to table tops, but can be used for a variety of purposes, such as the wall surface of a chest of drawers, wall materials, chair seats, chair backs, or ceiling materials.

[0036] [Board manufacturing method] Next, a method for manufacturing the board 1 according to the present disclosure will be described with reference to Fig. 6. Fig. 6 is a flowchart showing a method for manufacturing the board 1 according to the present disclosure.

[0037] S2 relates to the production of the first wood chips 12 contained in the wood chip layer 10 and the second wood chips 22 contained in the coffee grounds layer 20. The first wood chips 12 and / or the second wood chips 22 are, but are not limited to, chipped thinned wood (cedar, cypress, etc.). The first wood chips 12 and / or the second wood chips 22 may also be chipped non-thinned wood. Well-known methods may be used for wood chipping, and therefore a description thereof will be omitted here.

[0038] S4 and S6 are steps related to the formation of the wood chip layer 10. In S4, the wood chips obtained in S2 (first wood chips 12) are mixed with an adhesive, and the adhesive is applied to the first wood chips 12. The adhesive may be applied to the first wood chips 12 mechanically or manually. As an example, the first wood chips 12 and the adhesive are mixed in a weight ratio of 60-95:5-40 depending on the shape, size, or type of the wood chips used.

[0039] In S6, the adhesive-coated first wood chips 12 obtained in S4 are molded into a mat. Specifically, S6 is a step in which the adhesive-coated first wood chips 12 are smoothed to have as uniform a thickness as possible. S6 may be achieved by, for example, spreading the adhesive-coated first wood chips 12 in a mold formed to fit the shape of the board.

[0040] S8 and S10 are steps related to forming the coffee grounds layer 20. Either of S8 and S10 or S4 and S6 may be performed first, or they may be performed simultaneously.

[0041] In S8, the coffee grounds 21, thinned wood chips (second wood chips 22), and adhesive are mixed. As an example, the coffee grounds 21, second wood chips 22, and adhesive are mixed appropriately in a weight ratio of 50-100:0-50:5-40. At this time, the coffee grounds 21 used have a moisture content of 5%-20%, although this is not limited thereto.

[0042] In S8, the coffee grounds layer 20 may be formed by mixing only the coffee grounds 21 and the adhesive without mixing the second wood chips 22.

[0043] Next, in S10, the mixture of the coffee grounds 21, the second wood chips 22, and the adhesive is pulverized using, for example, a crusher. Specifically, the mixture of the coffee grounds 21, the second wood chips 22, and the adhesive is pulverized so that the second wood chips 22 contained in the coffee grounds layer 20 have a finer particle size than the first wood chips 12 contained in the wood chip layer 10. By pulverizing the coffee grounds 21 and the second wood chips 22, the smoothness of the surface of the molded coffee grounds layer 20 can be improved. Furthermore, pulverizing the mixture makes it easier to eliminate disadvantages that occur when the mixture is not pulverized (such as uneven application of the adhesive or poor design of the board (the appearance of the coffee grounds 21 layer) due to variations in the size of the second wood chips 22).

[0044] Note that S10 is not essential and may be omitted as appropriate depending on the use of the board 1, etc.

[0045] Next, in S12, the granulated mixture is layered on the wood chip layer 10. This step may be performed mechanically or manually. The thickness of the wood chip layer 10 and the mixture may be adjusted appropriately depending on the intended use of the board 1, etc.

[0046] Next, in S14, the laminated wood chip layer 10 and coffee grounds layer 20 are pressed (consolidated) using, for example, a heat press. When a thermosetting adhesive is used as the adhesive, the adhesive can be activated by the heat press.

[0047] In S14, the wood chip layer 10 and the coffee grounds layer 20 are compressed to form a composite board composed of the wood chip layer 10 and the coffee grounds layer 20. The pressing conditions at this time are, for example, a pressing temperature of 120 to 200°C, a pressing time of 5 to 15 minutes, and a compressive force of 3 to 30 MPa. The pressing process may be performed only once (one press). One press bonds the first wood chips 12 together within the wood chip layer 10, bonds the second wood chips 22 together within the coffee grounds layer 20, and bonds the coffee grounds 21 and the second wood chips 22, and bonds the wood chip layer 10 and the coffee grounds layer 20 together.

[0048] Next, the process proceeds to S16. Since the compressed board 1 may have an uneven surface, the surface is polished with a sander. The surface is polished to meet the surface smoothness or design requirements for the intended use of the board 1 (such as a table top).

[0049] Note that S16 is not essential and may be omitted as appropriate.

[0050] Finally, the process proceeds to S18. In S18, the board 1 is measured to a specified size required for its intended use (such as a table top), and cut. After cutting, the final product, board 1, is packaged and shipped.

[0051] Through the above steps, the board 1 according to the present disclosure can be manufactured.

[0052] 7 is a photograph of board 1 according to the present disclosure. Board 1 in FIG. 7 was manufactured through steps S2 to S18 in FIG.

[0053] The board 1 may be used alone. Alternatively, the board 1 may be used by bonding the back surfaces of two boards 1 together, with two coffee grounds layers 20 disposed on the front and back surfaces, respectively. Alternatively, the board 1 may be used by further disposing one or more wood chip layers 10 between the back surfaces of two boards 1 and adhering them together. In this way, the thickness of the board according to the present disclosure can be easily adjusted depending on the intended use of the board.

[0054] As can be seen from the above explanation, the board 1 according to the present disclosure is made from plant-derived coffee grounds and wood chips, and is therefore environmentally friendly. Therefore, after use, the board 1 can be crushed again and made into a board again.

[0055] In this way, the board according to the present disclosure can promote the cycle of recycling coffee grounds and achieve great social significance, including contributing to the SDGs.

[0056] (summary) The board according to the first aspect of the present disclosure includes a wood chip layer made of first wood chips 12, and a coffee grounds layer laminated on the wood chip layer and made of at least coffee grounds.

[0057] According to the above configuration, a board including a coffee grounds layer made of coffee grounds can be provided, which contributes to expanding the uses for recycling coffee grounds (tables, etc.).

[0058] Furthermore, the wood chip layer on which the coffee grounds layer is laminated is made of wood chips (first wood chips). In other words, the board according to aspect 1 of the present disclosure uses wood chips and coffee grounds, and therefore can provide an environmentally friendly board.

[0059] A board according to a second aspect of the present disclosure is the board of the first aspect, wherein the coffee grounds layer includes second wood chips.

[0060] According to the above configuration, the board according to the second aspect of the present disclosure can increase the strength of the coffee grounds layer by using the second wood chips as a reinforcing material. Furthermore, the board according to the second aspect of the present disclosure can enhance the design of the board by adding the color of the second wood chips to the single-color (black) coffee grounds. Furthermore, the design of the board can be varied widely by adjusting the content of the second wood chips. As a result, the board becomes more attractive and the number of reused coffee grounds applications (e.g., tables) can be further expanded.

[0061] A board according to a third aspect of the present disclosure is the board of the second aspect, wherein the second wood chips have a finer particle size than the first wood chips.

[0062] According to the above configuration, the board according to the third aspect of the present disclosure can improve the smoothness of the surface of the coffee grounds layer. For example, when the board according to the third aspect of the present disclosure is used as a table top, it can provide a smoother and easier-to-use table surface.

[0063] The board according to a fourth aspect of the present disclosure is the board of any one of the first to third aspects, further comprising a surface protection layer that protects the surface of the coffee grounds layer.

[0064] If the coffee grounds are exposed, the color of the coffee grounds may transfer to the user if the user of the board touches the surface of the coffee grounds layer. In this regard, the board according to aspect 4 of the present disclosure, by having the above-described configuration, can prevent direct contact between the user and the coffee grounds layer, thereby reducing the possibility of the color of the coffee grounds transferring to the user.

[0065] The board according to aspect 5 of the present disclosure is any one of aspects 1 to 4, in which a plate-shaped member is laminated on the back surface of the wood chip layer when the coffee grounds layer side is the surface relative to the wood chip layer.

[0066] This configuration also makes it possible to provide a board in which a plate-shaped member is laminated on the backside of the wood chip layer, which can provide added value such as improved design, reduced manufacturing costs, and reduced board weight, thereby increasing the appeal of the board and further expanding the uses for recycled coffee grounds (tables, etc.).

[0067] A method for manufacturing a board according to aspect 6 of the present disclosure includes the steps of forming a wood chip layer composed of first wood chips, laminating a coffee grounds layer composed of at least coffee grounds on the wood chip layer, and pressing the wood chip layer and the coffee grounds layer together.

[0068] According to the above configuration, the board according to the first aspect can be realized, and a board that contributes to expanding the uses (tables, etc.) for recycling coffee grounds can be provided.

[0069] A seventh aspect of the present disclosure relates to a method for manufacturing a board according to the sixth aspect, wherein the coffee grounds layer is made of a finely granulated mixture of the coffee grounds, second wood chips, and adhesive.

[0070] According to the above configuration, the board manufacturing method according to aspect 7 of the present disclosure can increase the smoothness of the coffee grounds layer surface. This allows for a smoother, more user-friendly board surface. Furthermore, because the coffee grounds, second wood chips, and adhesive are mixed and granulated in the mixture, the adhesive is sufficiently entangled with the coffee grounds and second wood chips. This increases the strength of the coffee grounds layer.

[0071] A board manufacturing method according to an eighth aspect of the present disclosure is the method of the seventh aspect, wherein at least one of the first wood chips and the second wood chips is obtained by chipping thinned wood.

[0072] The use of thinned wood is expected to have several benefits. For example, thinning contributes to forestry by promoting the growth of forest trees and maintaining forest health. It also increases the supply of timber resources.

[0073] The board manufacturing method according to the eighth aspect of the present disclosure has the above-described configuration, and thus can achieve the effects of using thinned wood as described above.

[0074] A table according to a ninth aspect of the present disclosure uses the board according to any one of the first to fifth aspects as a tabletop.

[0075] According to the above configuration, the table according to the ninth aspect of the present disclosure can provide a tabletop (or a table) that has the effect of the boards described in the first to fifth aspects above.

[0076] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the disclosed technical means are also included in the technical scope of the present disclosure. Furthermore, new technical features can be formed by combining the disclosed technical means. [Explanation of symbols]

[0077] 1, 2, 3, 4 Board 10 wood chip layer 12 First wood chips 20 Coffee grounds layer 21 Coffee grounds 22 Second Wood Chips 30 Surface protective layer 40 Plate-shaped member 50 tables

Claims

1. a wood chip layer composed of first wood chips; a coffee grounds layer laminated on the wood chip layer and composed of at least coffee grounds.

2. 10. The board of claim 1, wherein the coffee grounds layer comprises second wood chips.

3. 3. The board of claim 2, wherein the second wood chips are finer in particle size than the first wood chips.

4. 3. The board according to claim 1, further comprising a surface protection layer for protecting the surface of the coffee grounds layer.

5. 3. The board according to claim 1, wherein a plate-shaped member is laminated on a back surface of the wood chip layer when the coffee grounds layer side is defined as a surface relative to the wood chip layer.

6. forming a wood chip layer composed of first wood chips; laminating a coffee grounds layer composed of at least coffee grounds on the wood chip layer; and pressing the wood chip layer and the coffee grounds layer together.

7. 7. The method for manufacturing a board according to claim 6, wherein the coffee grounds layer is made of a pulverized mixture of the coffee grounds, second wood chips, and adhesive.

8. The method for manufacturing a board according to claim 7 , wherein at least one of the first wood chips and the second wood chips is made by chipping thinned wood.

9. A table using the board according to claim 1 or 2 as a top plate.

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