KR20190125273A - Method for manufacturing plate type material for furniture containing synthetic board of composition of coffee sludge - Google Patents

Abstract

The present invention relates to a method for manufacturing a plate-shaped material for furniture including a synthetic board of coffee sludge composition, which comprises: a coffee sludge main material board manufacturing step (S100) of manufacturing a synthetic board of coffee sludge composition; an adhesive applying and drying step (S200) of applying an adhesive to one side or both sides of the synthetic board of the coffee sludge composition which has been manufactured in the coffee sludge main material board manufacturing step (S100) and drying the same; and a sheet thermal adhesion step (S300) of adhering a sheet having a shape or a color printed thereon to one side or both sides of the synthetic board of the coffee sludge composition coated with the adhesive by pressing the sheet at a high temperature. The plate-shaped material for furniture including a synthetic board of coffee sludge composition comprises: a synthetic board of coffee sludge composition (S10); and a sheet (20) having a shape or a color printed through an adhesive layer (11) formed on one side or both sides of the synthetic board (10) of coffee sludge composition.

Description

TECHNICAL FOR MANUFACTURING PLATE TYPE MATERIAL FOR FURNITURE CONTAINING SYNTHETIC BOARD OF COMPOSITION OF COFFEE SLUDGE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a sheet of furniture and a sheet of furniture for furniture, and more particularly, to a method for manufacturing a sheet of furniture and a sheet of furniture for furniture including a composite board of coffee sludge composition.

As a substitute for natural patterned wood, wood on the surface of relatively easy-to-process and inexpensive plate wood materials such as High Density Fiber Board (HDF), Medium Density Fiberboard (MDF), Particle Board, etc. Films printed with patterns and patterns in various forms such as patterns are heated and pressed to be used as materials for making furniture.

The film to be attached to the plate-like wood material is a printing layer formed on a polyester or polyvinyl film paper, after applying an appropriate amount of adhesive to the surface of the material and directly attaching the film to the corresponding surface and then a separate press device It has been carried out in a manner of coating by heating and pressing to attach.

On the other hand, coffee beans are imported and sold at a high price, but coffee sludge, which is the remaining coffee grounds after extracting coffee beans, has a few fields that can be utilized, and even if it is recycled, its use range is enough to be used as a deodorizing material in containers or ashtrays. The scope of recycling is extremely limited, and most of it is still disposed of as waste.

Accordingly, attempts have been made to produce some building materials using coffee sludge, but the physical properties such as strength thereof do not reach the usual fiberboards, and thus are not actively spread. In particular, furniture materials have a natural friendly atmosphere. While providing the advantages of continuously discharging the inherent subtle aroma of coffee, the situation is not spread because it is required to introduce new manufacturing processes and equipment / equipment, such as the strength of the physical properties.

Therefore, a method of manufacturing a plate material for furniture and a furniture including a composite board of a coffee sludge composition which increases the economics and efficiency of production by using a processing method and equipment / apparatus of a conventional furniture plate material while having sufficient strength and properties. Development of plate materials is urgently required.

Patent Registration No. 10-1733306 (Invention name: Manufacturing method of interior block board using coffee powder and interior block board manufactured thereby, Announcement date: May 08, 2017) Patent Registration Patent Publication No. 10-1645205 (Invention name: Manufacturing method of composite board, Announcement date: August 03, 2016)

Therefore, the present invention manufactures a plate-like material for furniture, including a composite board of the coffee sludge composition to increase the economics and efficiency of production by using a conventional method and equipment / apparatus for processing the plate-like material for furniture while having sufficient strength and properties. It is an object to provide a method and a sheet material for furniture.

In order to achieve the above object, the present invention relates to a method of manufacturing a plate-like material for furniture comprising a composite board of coffee sludge composition in one aspect, a step of manufacturing a coffee sludge base board for producing a composite board of coffee sludge composition (S100), Adhesive coating and drying step (S200) to apply the adhesive to one or both surfaces of the composite board of the coffee sludge composition is completed in the coffee sludge main board production step (S100), the shape or color printed sheet on one surface Including the sheet heat bonding step (S300) of adhering to one or both sides of the composite board of the coffee sludge composition by applying the adhesive by pressing at high temperature, the coffee sludge base board manufacturing step (S100), (1) collection Coffee sludge drying step to prepare the dried coffee sludge so that the water content is 30% or less (S110), (2) the coffee sludge After adding calcium carbonate to the mixture, and then homogeneously mixed, and dried to a moisture content of 20% or less at room temperature, and then crushed to a particle size distribution 50 ~ 200 mesh coffee sludge moisture content / particle size adjusting step (S120), (3) after completion of the coffee sludge moisture content / particle size adjustment step, the coffee sludge powder composition composition step of preparing a composition for the composition of coffee sludge composition by adding a synthetic resin, a dispersant, a plasticizer and homogeneously mixed and then melted (S130), (4) the composition for the composite board is put into a mold, extrusion molding step (S140) for extrusion molding under the conditions of the temperature of 165 ~ 180 ℃, molding pressure 4 ~ 4.3MPa, and (5) the extrusion molding After cooling the molded product extruded in a step, it is characterized in that it is carried out including a post-processing and cutting step (S150) to cut to cut to a predetermined size.

Preferably the (2) coffee sludge moisture content / particle size adjusting step (S120), the coffee sludge powder is dried to have a water content of 15 ~ 20%.

In addition, preferably in the (3) coffee sludge mixed composition production step (S130) the composition for the composition of the coffee sludge composition board with respect to 100 parts by weight of coffee sludge powder, 12.5 to 15 parts by weight of synthetic resin, 4 to 8 weight of calcium carbonate 15 parts by weight of talc and 1 to 4 parts by weight of plasticizer are mixed.

Here, the synthetic resin is preferably any one selected from the group consisting of synthetic rubber, PVC, TPU, TPE.

Further preferably, in the (3) coffee sludge mixed composition generation step (S130), the waste synthetic fiber having a length of 30 ~ 50mm with respect to 100 parts by weight of the coffee sludge powder in the composition for the composition of coffee sludge composition 3 to 5 parts by weight are further added and mixed.

In addition, preferably (3) the coffee sludge mixed composition generation step (S130) is a fine powder state having a distribution of particle size of 50 ~ 200 mash (mash) with respect to 100 parts by weight of the coffee sludge powder in the composition for the composition of coffee sludge composition It is added, including 0.1 to 0.5 parts by weight of any one or more far-infrared emitting materials selected from the group consisting of loess, pearlite, ganban stone, jade powder, sulfur, germanium ore powder.

Preferably, the adhesive application and drying step (S200), the adhesive is applied in the form of an aqueous urethane adhesive mixture liquid in which a water-based urethane adhesive and an aqueous curing agent are mixed at a predetermined ratio, and the aqueous urethane adhesive mixture liquid is a solid component composed mainly of aqueous polyurethane. Aqueous polyurethane adhesive base material containing 40% by weight and an aqueous curing agent containing 90 to 100% by weight of a solid content composed mainly of polyisocyanate are mixed in a weight ratio of 1: 2.

In another aspect, the present invention relates to a plate-like material for furniture comprising a composite board of coffee sludge composition, the adhesive layer formed on one or both sides of the composite board 10 of the coffee sludge composition, and the composite board 10 of the coffee sludge composition The composition for the composite board of the coffee sludge composition, comprising the sheet 20 printed with the shape or color bonded through the (11), constituting the composite board 10 of the coffee sludge composition is 100% by weight of coffee sludge powder It is characterized in that the composition containing 12.5 to 15 parts by weight of synthetic resin, 4 to 8 parts by weight of calcium carbonate, 15 to 20 parts by weight of talc, and 1 to 4 parts by weight of plasticizer.

Preferably, the coffee sludge powder has a water content of 15 to 20% and a particle size of 50 to 200 mash.

In addition, preferably the synthetic resin is any one selected from the group consisting of synthetic rubber, PVC, TPU, TPE.

According to the present invention as described above, furniture comprising a composite board of the coffee sludge composition to increase the economics and efficiency of production by using the processing method and equipment / apparatus of the usual furniture plate material while having sufficient strength and physical properties as it is It is possible to provide a method for manufacturing a sheet material and a sheet material for furniture.

1 is a flow chart of a method of manufacturing a plate-like material for furniture comprising a composite board of the coffee sludge composition of the present invention.
Figure 2 is a flow chart of the coffee sludge base board manufacturing step of the manufacturing method of the plate-like material for furniture comprising a composite board of coffee sludge composition of one embodiment of the present invention.
3 is a view for explaining the structure of a plate-like material for furniture including a composite board of the coffee sludge composition of one embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the present invention are different from one another but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used as meanings that can be commonly understood by those skilled in the art. In addition, commonly defined terms used in the dictionary are not ideally or excessively interpreted unless they are specifically defined.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. Like reference numerals in the drawings denote like elements.

1 is a flow chart of a method of manufacturing a plate-like material for furniture comprising a composite board of coffee sludge composition of the present invention, Figure 2 is a coffee of a method of manufacturing a plate-like material for furniture comprising a composite board of coffee sludge composition of an embodiment of the present invention This is a flow chart of the sludge host board fabrication steps.

Referring to Figure 1, the manufacturing method of the furniture plate-like material comprising a composite board of the coffee sludge composition of the present invention, coffee sludge baseboard manufacturing step (S100), adhesive coating and drying step (S200), sheet heat It is carried out including the bonding step (S300).

Coffee sludge base board production step (S100), to produce a composite board of coffee sludge composition.

In the present invention, as shown in Figure 2, coffee sludge base board manufacturing step (S100) is (1) coffee sludge drying step (S110), (2) to prepare the dried coffee sludge to be 30% or less moisture content, After adding calcium carbonate to the coffee sludge, mixed homogeneously and dried at a room temperature to 20% or less moisture content, and then to adjust the coffee sludge moisture content / particle size to produce a coffee sludge powder by grinding to a particle size distribution 50 ~ 200 mesh (S120 ), (3) after completion of the coffee sludge moisture content / particle size adjusting step, adding a synthetic resin, a dispersant, a plasticizer to the coffee sludge powder homogeneously mixed and then melted to prepare a composition for the composition of coffee sludge mixture (S130) ), (4) an extrusion molding step (S140), (5) the extrusion molding the composition for the composite board into a mold, extrusion molding under the conditions of the temperature of 165 ~ 180 ℃, molding pressure 4 ~ 4.3MPa. After cooling the extrudate from step type, it is performed after a processing and cutting step (S150) of cutting is cut to a predetermined size.

In the coffee sludge drying step (S110), the collected coffee sludge is pre-dried to 30% or less of water content, thereby reducing the weight in storage or working process, and preventing pre-modification due to moisture.

 In the (2) coffee sludge moisture content / particle size adjusting step (S120), it is preferable that the coffee sludge powder is dried to have a water content of 15 to 20%, which is less than 15% or more than 20% by experiment. In this case, problems such as deterioration of workability, or agglomeration when the composition is mixed, occur, and when the particle size is smaller than the particle size distribution of the 50 to 200 mash, it is mixed by a phenomenon such as agglomeration. When the resin is hardly combined with the synthetic resin, the moldability is deteriorated, and when the size is larger than the particle size distribution of 50 to 200 mash, the physical strength of the final product board is degraded. The experimental results were considered, and the optimum values of the moisture content and particle size distribution of the coffee sludge base board having excellent physical properties of the present embodiment were determined experimentally. It was. (2) Coffee sludge moisture content / particle size adjusting step (S120) is carried out including the process of drying and grinding the coffee sludge, thereby producing a coffee sludge powder having the moisture content and particle size.

The composition for the composition of coffee sludge composition of the coffee sludge mixed composition generation step (S130) (3) is 12.5 to 15 parts by weight of synthetic resin, 4 to 8 parts by weight of calcium carbonate, talc 15 to about 100 parts by weight of coffee sludge powder. 20 parts by weight, plasticizer may be performed to include 1 to 4 parts by weight.

(3) Synthetic resin of the composition for the composition of coffee sludge composition board of the coffee sludge mixed composition generation step (S130) is a polymer compound for adhering the coffee sludge at room temperature or high temperature, extruded at room temperature or high temperature such as thermosetting resin, thermoplastic resin, synthetic rubber, etc. Any one may be used as long as it serves as an adhesive for adhering coffee sludge during molding. Preferably, any one selected from the group consisting of synthetic rubber, PVC, TPU, and TPE may be used. It is preferable to use the processed powder state, and it is most preferable to use the powdered PVC processed to have a certain particle size. This is because water, moisture resistance, excellent durability, expansion due to moisture, shrinkage, no distortion, no preservation and chemical treatment, dimensional stability and processability is excellent.

The synthetic resin has a problem of breakage of the board due to adhesion problems when the mixing amount is less than 12.5 parts by weight based on 100 parts by weight of the coffee sludge powder, and when the amount exceeds 15 parts by weight, the strength is higher than the standard value. The result of the problem of poor workability was confirmed and the results of the experiment were considered, and the mixing ratio of the synthetic resin produced of the coffee sludge main board having excellent physical properties of the present embodiment was 12.5 to 15 parts by weight based on 100 parts by weight of the coffee sludge powder. It was determined experimentally with a negative value.

The calcium carbonate reacts with the water contained in the coffee sludge to produce calcium hydroxide, and generates carbon dioxide to lower the content of the water in the coffee sludge to increase the moldability, and the mixing amount thereof by a preliminary experiment. If the amount is less than 4 parts by weight, there is a disadvantage in that a groove is formed as if the surface is dull, and in the case of more than 8 parts by weight, a bubble layer is formed in the inner monolayer during cutting, which results in the disadvantage of density unevenness. In consideration of the experimental results, in the present embodiment, the mixing ratio of calcium carbonate was experimentally determined to a value of 4 to 8 parts by weight based on 100 parts by weight of coffee sludge powder.

 As the dispersant, the dispersant may be used to improve the dispersibility of the composition, and any dispersant used in the manufacture of the composite board may be used. In the present embodiment, talc is added to 100 parts by weight of coffee sludge powder as the dispersant. It mixed with the mixing ratio of 15-20 weight part with respect to. Preferably, it is preferable to use an alkaline dispersant to ensure environmental friendliness, which is a member of the object of the present invention, and to obtain even mixing of the melt of the synthetic resin and the coffee sludge during molding.

The plasticizer is an organic material that facilitates molding at high temperature by increasing the thermoplasticity of the synthetic resin, and preferably, an environmentally friendly plasticizer (DOTP) is used, and, by preliminary experiment, the mixing amount of the plasticizer is 1 part by weight. If less than, there is a problem of hardness and bending of the board, and if it exceeds 5 parts by weight, the hardness and strength is improved, but the problem that the wear of the tool increases during machining, the results were confirmed. In consideration of the present embodiment, the mixing ratio of the plasticizer was determined experimentally to a value of 1 to 4 parts by weight based on 100 parts by weight of the coffee sludge powder.

Further, according to the embodiment (3) in the coffee sludge mixed composition generation step (S130), the waste synthetic composition having a length of 30 ~ 50mm with respect to 100 parts by weight of the coffee sludge powder in the composition for the composition of the coffee sludge composition 3 to 5 parts by weight of the fiber may be further added and mixed.

(3) 3 to 5 parts by weight of waste synthetic fibers having a length of 30 to 50 mm based on 100 parts by weight of the coffee sludge powder may be further added to the composition of the coffee sludge mixed composition generation step (S130).

At this time, the waste synthetic fibers are processed by polymer resin, and when molded by applying a certain temperature, the melted melt serves as an adhesive and is evenly distributed to obtain the effect of increasing the physical strength of the composite board. If the amount of the waste synthetic fiber is less than 3 parts by weight, there is a disadvantage in that the physical strength improvement expected by the mixing of the waste fibers cannot be obtained. If the amount of the waste synthetic fiber exceeds 5 parts by weight, the coffee sludge is mixed when more than the waste fibers are mixed and melted. The powder may be agglomerated by waste fibers, which may cause a decrease in physical strength of a specific part, thereby increasing the product defect rate.

In addition, according to the embodiment (3) coffee sludge mixed composition producing step (S130), the distribution of particle size 50 ~ 200 mash (mash) with respect to 100 parts by weight of the coffee sludge powder in the composition for the composition of the coffee sludge composition It may be added including 0.1 to 0.5 parts by weight of any one or more far infrared emitting materials selected from the group consisting of finely divided loess, pearlite, elvan, jade powder, sulfur, germanium ore powder.

In this case, when the particle size of the far-infrared emitting material is out of the above threshold, that is, the surface of the composite board made of the particle size is too large, there is a disadvantage that the roughness is very rough, when too small, the miscibility of the mixture before processing the molded body is lowered The physical strength of the board may be lowered due to the deterioration of moldability due to the problem of forming, or there may be a problem in which a fine crack is generated in the manufactured composite board after molding. When the amount of the far-infrared emitting substance is less than 0.1 part by weight Far infrared dissipation effect is insignificant, so there is a disadvantage that does not meet the purpose of the addition, if exceeding 0.5 parts by weight can increase the divergence effect of the far infrared, but the disadvantage that the manufacturing cost rises, and the bondability with synthetic resin have.

Adhesive application and drying step (S200), by applying the adhesive to one or both surfaces of the synthesis board of the coffee sludge composition is completed in the coffee sludge base board manufacturing step (S100) to dry. According to the embodiment, when the sheet to be described later to be adhered on both sides may be performed sequentially or at the same time the adhesive coating and drying step on both sides.

Through this, not only the sheet thermal adhesion described later is possible, but also the effect of reinforcing the strength of the composite board of the coffee sludge composition through the drying of the mixed liquid absorbed on the surface of the composite board of the coffee sludge composition.

As the adhesive, an environmentally friendly aqueous urethane adhesive having a low emission of harmful substances is used, and the aqueous urethane adhesive is applied in the form of an aqueous urethane adhesive mixture liquid in which an aqueous urethane adhesive and an aqueous curing agent are mixed at a predetermined ratio. The urethane adhesive mixture is made by mixing a water-based polyurethane adhesive main body containing about 40% by weight of solids containing aqueous polyurethane and an aqueous curing agent containing 90-100% by weight of solids containing polyisocyanate as a main component in a weight ratio of 1: 2. .

 Various well-known aqueous urethane adhesives can be used as the subject of the aqueous urethane adhesive, and in this embodiment, the main component has an aqueous polyurethane solid content ratio of 40 ± 2 wt%, a viscosity (CPS / 25 ± 1 ° C.) of 200 to 500, and a PH of A milky white viscous polyurethane adhesive product of 7.0 ± 1.0 is used as the subject of aqueous urethane adhesives.

As the aqueous curing agent, a known product having various polyisocyanates as the main component may be used. In this embodiment, the main component is polyisocyanate, the solid content ratio is 90 to 100% by weight, the viscosity (CPS) is 1500 to 2500, and the NCO (%) is A room temperature curing type aqueous curing agent product of 16 ± 1% and particle size of 0.2 ~ 0.5㎛ after dispersion is used.

Adhesive application and drying step (S200) of the present embodiment is carried out by a method of applying the urethane adhesive mixture to the surface in a coating amount of 50g / m ² and then dried at room temperature for 1-2 hours.

Sheet thermal bonding step (S300) is adhered to one surface or both sides of the composite board of the coffee sludge composition by applying the adhesive by pressing the sheet in which the shape or color printed on one surface by pressing at high temperature. The sheets may be adhered to both sides, in which case the sheets may be adhered or performed sequentially on both sides on which the adhesive application and drying steps have been performed, or the sheets may be adhered simultaneously.

In the present embodiment, the sheet heat bonding step (S300) is performed using a conventional membrane press machine, and the sheet of the pattern or color printed on the composite board of the coffee sludge composition by pressing the high temperature by pressing the composite board of the coffee sludge composition The sheets are bonded to each other, and the composition of the coffee sludge composition is put into a vacuum board at a pressure of about 2.5 to 3.5KG.

3 is a view for explaining the structure of a plate-like material for furniture including a composite board of the coffee sludge composition of one embodiment of the present invention.

Furniture plate-like material comprising a composite board of the coffee sludge composition of the present invention is produced by the method of manufacturing a furniture plate-like material comprising a composite board of the coffee sludge composition of an embodiment of the present invention described above.

Referring to FIG. 3, the sheet-like material for furniture comprising a composite board of coffee sludge composition of the present invention includes an adhesive layer formed on one or both surfaces of the composite board 10 of the coffee sludge composition and the composite board 10 of the coffee sludge composition. The composition for the composite board of the coffee sludge composition, comprising the sheet 20 printed with the shape or color bonded through the (11), constituting the composite board 10 of the coffee sludge composition is 100% by weight of coffee sludge powder It is characterized in that the composition containing 12.5 to 15 parts by weight of synthetic resin, 4 to 8 parts by weight of calcium carbonate, 15 to 20 parts by weight of talc, and 1 to 4 parts by weight of plasticizer.

In order to secure high workability in this embodiment and to secure excellent physical properties of the final composite board, it is preferable to use the coffee sludge powder having a particle size distribution of 15 to 20% water content and a particle size of 50 to 200 mash. desirable. In order to satisfy such conditions, the collected coffee sludge is dried and ground to be processed to have the water content and the particle size.

In addition, the synthetic resin is selected from a polymer compound having a property of melting and bonding the coffee sludge at room temperature or high temperature, the adhesive role for bonding the coffee sludge during extrusion molding at room temperature or high temperature, such as thermosetting resin, thermoplastic resin, synthetic rubber It is possible to use a variety of materials, it is preferable to use any one selected from the group consisting of powdered synthetic rubber, PVC, TPU, TPE processed to have a certain particle size more preferably using powdered PVC It is best because it has excellent advantages in water resistance, moisture resistance, durability, no expansion, shrinkage and warping by moisture, no preservative and chemical treatment, excellent dimensional stability and processability.

According to an embodiment, the synthetic resin is mixed with 12.5 to 15 parts by weight based on 100 parts by weight of coffee sludge powder. When the mixing amount is less than 12.5 parts by weight, there is a problem of breakage of the board due to adhesion problems, and when the mixing amount is more than 15 parts by weight, the mixing ratio is determined according to the experimental results in which workability is deteriorated due to the strength being higher than the standard value. .

 The calcium carbonate constituting the composition reacts with the water contained in the coffee sludge to produce calcium hydroxide, and generates carbon dioxide to lower the content of the water contained in the coffee sludge to increase moldability, and the mixing amount thereof. If the amount is less than 4 parts by weight, there is a disadvantage in that a groove is formed as if the surface is dull, and if it exceeds 8 parts by weight, the mixing ratio is determined according to the experimental result that a bubble layer is formed in the inner monolayer during cutting, resulting in uneven density. It was decided.

The dispersant is to improve the dispersibility of the composition, and any dispersant used in the manufacture of the composite board may be used. Preferably, the dispersant is a member of the object of the present invention to ensure environmental friendliness, An alkaline dispersant may be used to achieve even mixing of the melt and the coffee sludge powder.

The plasticizer is an organic material that facilitates molding at high temperature by increasing thermoplasticity of synthetic resin, and may use DOTP (Dioctyl-terephthalate), which is an environmentally friendly plasticizer. If the amount of the plasticizer is less than 1 part by weight, there is a problem of hardness and warpage of the board, and if it exceeds 5 parts by weight, it may be excellent in terms of physical properties and partial hardness.

Furthermore, according to the embodiment, in order to increase the moldability of the composite board manufactured using the composition and improve physical properties, waste synthetic fibers having a length of 30 to 50 mm based on 100 parts by weight of the coffee sludge powder are used. 3 to 5 parts by weight may be further added.

At this time, the waste synthetic fibers are processed by polymer resin, and when molded by applying a certain temperature, the melted melt serves as an adhesive and is evenly distributed to obtain the effect of increasing the physical strength of the composite board. If the amount of the waste synthetic fibers is less than 3 parts by weight, there is a disadvantage in that the physical strength expected from mixing of the waste fibers cannot be obtained. If the amount of the waste synthetic fibers exceeds 5 parts by weight, the coffee sludge is mixed when more than the waste fibers are mixed and melted. Powder may agglomerate due to waste fiber, which may cause a decrease in physical strength of a specific part, resulting in a high product defect rate.

have.

According to the embodiment any one selected from the group consisting of finely divided loess, pearlite, ganban stone, jade powder, sulfur, germanium gemstone powder having a distribution of particle size 50 ~ 200 mash (mash) with respect to 100 parts by weight of the coffee sludge powder 0.1 to 0.5 parts by weight of one or more far infrared ray emitting materials may be added. In this case, when the particle size of the far infrared ray emitting material is out of the threshold value, that is, the surface of the manufactured composite board has a disadvantage that the roughness of the manufactured surface is very rough. In addition, if too small, there is a problem that the miscibility of the mixture before processing the molded product is reduced, the physical strength of the board is reduced due to the deterioration of the moldability, or there may be a problem that a fine crack occurs in the composite board produced after molding have.

On the other hand, when the addition amount of the far infrared ray emitting material is less than 0.1 parts by weight, there is a disadvantage in that it does not meet the purpose of adding the far infrared ray diverging effect, and when it exceeds 05 parts by weight, the effect of far infrared rays can be increased, but the manufacturing cost There is a drawback of rising, and the disadvantage of degrading the bond with the synthetic resin.

Hereinafter, a method of manufacturing a plate-like material for furniture including a composite board of coffee sludge composition of the present invention as described above and a composition of a coffee-sludge composition for implementing a furniture plate-like material according to various embodiments below will be described. The test procedure and the results are as follows.

[Example 1] to [Example 4]

<Preparation of materials>

1. Coffee Sludge Powder

Collect the coffee sludge at the instant coffee processing plant, dry the collected coffee sludge in the dryer until the moisture content is less than 30%, and add the calcium carbonate to the dried coffee sludge and mix it homogeneously. In a drying room maintaining a temperature of 35 ℃ natural drying until the Hash ratio is less than 20%. The dried coffee sludge is ground to have a particle size distribution of 50 ~ 200 mesh to prepare a coffee sludge powder.

2 synthetic resin: Prepare PVC SG5 having the physical properties shown in Table 1 below.

Index / Tech Data Index / Tech Data SG5 Viscosity ml / g
(or k value) Average Degree of Polymerization 118-107
(68-66)
1100-1000 Impurity, Piece ≤s 30 Volatile (including water) Content% ≤ 0.40 Apparent Density g / ml ≥ 0.42 Sieve Residue% Sieve Rate% 0.25mm Sieve Pore ≤ 2.0 Sieve Rate% 0.063mm Sieve Pore ≥ 90 "Pearl eye" number, Piece / 400cm2≤ 40 100 g resin plasticiser absorption capacity g. 19 Whiteness (160 ㅀ C, 100min),% ≥ 74 Water liquid extract conductance ratio s / m < - Remain chloroethylene Content μg / g < 5

3 Potassium carbonate: Product of Daemyung Chemical. Potassium carbonate (anhydrous) is used.

4 Talc: Daemyung Chemical's talc powder is used.

5 Plasticizer: Hanwha Chemical uses SP-390.

6 Far-infrared emitter: Use ocher and elvan powder with particle size of 50 ~ 200 mesh.

7 Synthetic fiber: PET fiber prepared by cutting to have a length of 30 ~ 50㎜ is used.

The prepared materials were mixed at a composition ratio as shown in Table 2 below, and melted with stirring at a temperature of 100 to 120 ° C. for 10 to 20 minutes, and the melt was introduced into a mold at a temperature of 165 to 180 ° C. and a molding pressure. After extruding under the conditions of 4 to 43 MPa, and cooling the molded product, a composite board specimen prepared by cutting to the size of width * length * height = (500) mm * (500) mm * (18) mm is prepared.

material Example 1 Example 2 Example 3 Example 4 Coffee Sludge Powder 100 100 100 100 Synthetic resin 12.5 13 14 15 Calcium carbonate 4 5 7 8 Talc 15 16 18 20 Plasticizer One 2 3 4 Ocher - 0.2 0.2 0.1 Elvan - - 0.2 0.1 Waste synthetic fiber - - - 4

The mixing ratio unit of Table 2 is parts by weight, and the physical properties of the specimens prepared in Examples 1 to 4 as shown in Table 2 were measured by a standard test method, and the results were as shown in Table 3 below.

[Comparative Example] A conventional synthetic board Co., Ltd. light source wood / medium-density fiber board 18T was prepared without using the coffee sludge as in Example, and the physical properties of the prepared composite board were measured by a standard test method. It is shown in Table 3 below.

Item Example 1 Example 2 Example 3 Example 4 Comparative example density 0.65 0.63 0.62 0.66 0.7 The tensile strength
(kgf / ㎠) 249 238 242 258 270 Flexural strength (kgf / ㎠) 436 417 423 442 450 Aesthetic 5 4 4 5 3

In Table 3, the aesthetic sense was evaluated by the response of 50 subjects, and scores and evaluation criteria were used for the five-point scoring method (5: very good, 4: good, 3: normal, 2: bad, 1: very bad). . As can be seen from the results of Table 3, it can be seen that the physical properties of the composite board processed using the coffee sludge according to the present invention can secure the physical properties that do not fall significantly compared to the conventional composite board, as a result It turned out that it can fully use for the use, such as a building board. In addition, as a result of evaluating aesthetics as one of the sensory evaluation through the subjects, it can be seen that the superior to the conventional composite board.

 Manufacturing method of furniture sheet material including composite board of coffee sludge composition to increase the economics and efficiency of production by using the processing method and equipment / equipment of ordinary furniture sheet material as it has sufficient strength and physical properties as above; and The present invention for providing furniture sheet materials has been described by way of specific embodiments, such as specific components or steps and processes, and limited embodiments and drawings. However, this is only provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from this description. Do. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents or equivalents of the claims as well as the claims to be described later belong to the scope of the present invention. .

S100: coffee sludge presidency board production steps
S200: Adhesive Application and Drying Steps
S300: Sheet Heat Adhesive Step
10: composite board of the coffee sludge composition,
11: adhesive layer
20: sheet printed with shape or color

Claims (6)

In the manufacturing method of the plate-like material for furniture comprising a composite board of the coffee sludge composition,
The coffee sludge base board manufacturing step (S100) for producing a composite board of the coffee sludge composition, the coffee sludge base board manufacturing step (S100) by applying an adhesive to one or both sides of the synthesis board of the coffee sludge composition is completed is dried Adhesive application and drying step (S200), the sheet heat-adhesive step (S300) for adhering to one side or both sides of the composite board of the coffee sludge composition by applying the adhesive by pressing the sheet printed with the shape or color close to the surface at high temperature Including, the coffee sludge base board manufacturing step (S100),
(1) coffee sludge drying step (S110) to prepare the dried coffee sludge to dry the moisture content is 30% or less,
(2) after adding calcium carbonate to the coffee sludge, mixed homogeneously, dried to have a water content of 15 to 20% at room temperature, and then crushed to a particle size distribution of 50 to 200 mesh to produce coffee sludge powder. / Particle size adjustment step (S120),
(3) After the coffee sludge moisture content / particle size adjustment step is completed, the mixture is added to the coffee sludge powder, dispersing agent, plasticizer, homogeneously mixed, and then melted to prepare a composition for the composition of coffee sludge composition board for the coffee sludge composition The composition for the composition board of the coffee sludge mixture prepared by mixing 12.5 to 15 parts by weight of synthetic resin, 4 to 8 parts by weight of calcium carbonate, 15 to 20 parts by weight of talc, and 1 to 4 parts by weight of plasticizer, based on 100 parts by weight of coffee sludge powder. Composition generation step (S130),
(4) an extrusion molding step (S140) for putting the composition for a composite board into a mold, and extruding under conditions of a temperature of 165 to 180 ° C. and a molding pressure of 4 to 4.3 MPa, and
(5) after cooling the molded product extruded in the extrusion molding step, comprising a composite board of the coffee sludge composition, characterized in that the post-treatment and cutting step (S150) to cut and cut to a predetermined size is performed. Method for making furniture sheet material. The method according to claim 1,
The synthetic resin is selected from the group consisting of synthetic rubber, PVC, TPU, TPE
Method of producing a plate-like material for furniture comprising a composite board of coffee sludge composition, characterized in that one. The method according to claim 1,
3 to 5 parts by weight of the waste synthetic fiber having a length of 30 to 50mm with respect to 100 parts by weight of the coffee sludge powder in the composition for the composition of coffee sludge composition (S130) in the composition of the coffee sludge mixed composition (S130) Method of producing a plate-like material for furniture comprising a composite board of coffee sludge composition, characterized in that the addition is further mixed. The method according to claim 1,
The (3) coffee sludge mixed composition producing step (S130) is a fine powder ocher, pearlite having a distribution of 50 to 200 mash particle size with respect to 100 parts by weight of the coffee sludge powder in the composition for the composition of coffee sludge composition Fabrication of furniture plate-like material comprising a composite board of the coffee sludge composition, characterized in that it is added, including 0.1 to 0.5 parts by weight of any one or more far infrared emitting materials selected from the group consisting of ganban stone, jade powder, sulfur, germanium ore powder Way. The method according to claim 1,
In the adhesive application and drying step (S200), the adhesive is applied in the form of an aqueous urethane adhesive mixture in which an aqueous urethane adhesive and an aqueous curing agent are mixed at a predetermined ratio, and the aqueous urethane adhesive mixture is 40% by weight of solids containing aqueous polyurethane as a main component. Aqueous polyurethane adhesive base material and furniture plate-like material comprising a composite board of a coffee sludge composition, characterized in that the aqueous curing agent containing 90 to 100% by weight of the solid content of polyisocyanate is mixed in a weight ratio of 1: 2. How to make. In the furniture sheet material comprising a composite board of the coffee sludge composition,
A plate-like material for furniture comprising a composite board of coffee sludge composition produced by the manufacturing method of any one of claims 1 to 5.

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