KR102274572B1 - Kitchen furniture and its manufacturing method - Google Patents

Abstract

The present invention relates to kitchen furniture to protect the health of constructors and users, and a manufacturing method thereof. The method includes: surface-treating by forming scratches on a surface of a core material through sanding; heating with hot air to remove moisture from the core material; preparing wood protection oil for water repellency, waterproofing, and insect repelling; permeating the wood protection oil into the core material; and preparing a paint for undercoating.

Description

Kitchen furniture and its manufacturing method

The present invention relates to kitchen furniture and a method for manufacturing the same, and more specifically, by infiltrating into the heartwood wood protection oil, a non-toxic wood protection agent based on natural vegetable raw materials that acts as a water repellent, antiseptic, and insect repellent, to improve the health of builders and users. By manufacturing an eco-friendly adhesive using plant essence and conductive filler, a firm connection between the undercoat and top coat can be maintained, and the health of the constructor and user can be protected by using eco-friendly adhesives and eco-friendly topcoats. It relates to kitchen furniture and a method of manufacturing the same.

Kitchen furniture such as sinks, tableware cabinets, countertops, and dining tables are not only important for functionality and aesthetics, but also for water repellency, antiseptic and insect repellency, and the impact on the health of the installer or user is also one of the most important design factors.

For reference, the technology of manufacturing preservative wood by heating the processed wood and introducing smoke from the outside into the heated wood to introduce and maintain the smoke to the surface and the inside of the wood, Republic of Korea Patent Publication No. 10-1343656 (Announcement) Date January 24, 2014) of "preserved wood and its manufacturing method" has been disclosed.

However, the conventional kitchen furniture including the registration number 10-1343656 has a problem that the influence on the health of the constructor and the user is not considered.

Registered Patent Publication Registration No. 10-1343656

An object of the present invention is to solve the problems of the prior art as described above, and by penetrating the wood protection oil, which is a non-toxic wood protection agent based on natural vegetable raw materials that acts as a water repellent, antiseptic, and insect repellent, into the heartwood, the health of the constructor and user It is to provide a kitchen furniture and a manufacturing method thereof that can protect the.

Another object of the present invention is to provide a kitchen furniture and a method for manufacturing the same, which can maintain a firm connection between the undercoat layer and the top coat layer by manufacturing an eco-friendly adhesive body using a plant extract and a conductive filler.

Another object of the present invention is to provide kitchen furniture and a method for manufacturing the same, which can protect the health of builders and users by using an eco-friendly adhesive and an eco-friendly topcoat.

As a means for achieving the above object, the configuration of the kitchen furniture manufacturing method of the present invention comprises the steps of forming scratches on the surface of the core material through sanding and surface treatment, and heating with hot air to remove moisture from the surface treatment core material. Steps, preparing a wood protection oil for water repellency, waterproofing, and insect repellency, penetrating the wood protection oil into a core material, preparing a paint for undercoating, and applying the undercoating paint to the upper surface of the core material forming an undercoat layer, manufacturing an eco-friendly adhesive using plant essence and conductive filler, coating the eco-friendly adhesive on the upper surface of the undercoat layer to form an eco-friendly adhesive layer, Manufacturing, applying the eco-friendly topcoat paint to the upper surface of the eco-friendly adhesive layer to form a topcoat layer, manufacturing a flame retardant waterproof paint using a water-soluble urethane elastic coating material, and applying the flame retardant waterproof paint over the top Forming a flame-retardant waterproof layer by coating on the upper surface of the layer, forming a printing layer by performing a printing process on the flame-retardant waterproof layer using an UV-curing paint; Air spraying so that the UV-curing paint does not agglomerate; , manufacturing a wooden panel by irradiating with UV, and horizontally and vertically the wooden panel to form a space for accommodating tableware or cooking utensils, or to form a support for placing tableware, cooking tools, and cooking materials. It is preferable if it is made including the step of manufacturing kitchen furniture by assembling with

In the configuration of the kitchen furniture manufacturing method of the present invention, the step of preparing the wood protection oil is a mixture of silicone oil, aromatic base oil, and paraffin base oil 1: 1: 05 parts by weight, but citrus oil is mixed with insect repellent oil. It is preferable to prepare the wood protection oil by mixing 2 to 3 parts by weight based on 100 parts by weight.

According to the configuration of the kitchen furniture manufacturing method of the present invention, the step of preparing the paint for undercoating includes the steps of preparing an intermediate by reacting a polyhydric alcohol and a polybasic acid in 35 to 45: 45 to 55 parts by weight, and 100 parts by weight of the intermediate. preparing an amine-modified unsaturated polyester resin by reacting 2 to 3 parts by weight of a polyamine with 6 to 7 parts by weight of dipentaerythritol polyacrylate and trimethylolpropane based on 100 parts by weight of the amine-modified unsaturated polyester resin Preparing a modified unsaturated polyester resin by polymerization with 10 to 13 parts by weight of a triacrylate, preparing a coating composition for undercoating by mixing the modified unsaturated polyester resin with a crosslinking monomer; It is preferable to include the step of mixing 2 to 3 parts by weight of graphene fibers and 4 to 5 parts by weight of cellulose nanofibers with respect to 100 parts by weight to prepare a paint for undercoating.

The configuration of the kitchen furniture manufacturing method of the present invention, the step of preparing the eco-friendly adhesive, 23 to 24 parts by weight of the plant essence, 13 to 15 parts by weight of the hybrid resin mixture, 7 to 8 parts by weight of the diluent based on 100 parts by weight of the polyurethane prepolymer A step of preparing an eco-friendly adhesive composition by adding and mixing parts, 4 to 6 parts by weight of a thickener, 7 to 9 parts by weight of a plasticizer, 12 to 15 parts by weight of graphene, and 5 to 7 parts by weight of a flame retardant, and a curing agent for the eco-friendly adhesive composition It is preferable to include the step of preparing an eco-friendly adhesive by mixing in a weight ratio of 4:6.

According to the configuration of the kitchen furniture manufacturing method of the present invention, the step of preparing the eco-friendly topcoat paint is an aliphatic polyisocyanate curing agent 30-40 based on 100 parts by weight of the polyester main resin having a viscosity of 1500-2500 (cps/25℃) The polyester main resin comprises 14 to 17 parts by weight of isophthalic acid, 23 to 24 parts by weight of adipic acid, and 24 to 25 parts by weight of neopentyl glycol, wherein the polyester main resin contains 5 parts by weight of an additive, and the aliphatic polyisocyanate The curing agent is at least one selected from the group consisting of methylene diisocyanate, isophorone diisocyanate, cyclohexyl diisocyanate, hexamethylene diisocyanate, and isobornyl diisocyanate, and the additive is silicon dioxide mineral, clay mineral, aluminum hydrate, carbonate It is preferable to use a mixture of minerals and molten slag to produce an eco-friendly topcoat with a low VOC content.

The configuration of the kitchen furniture manufacturing method of the present invention, the step of preparing the flame retardant waterproof paint is based on 100 parts by weight of the water-soluble urethane elastic coating material, 2 to 3 parts by weight of a flame retardant, 2 to 3 parts by weight of a UV blocker, 4 parts by weight of a UV curing paint It is prepared by mixing ~ 6 parts by weight, and the flame retardant is preferably any one or a mixture of two or more of antimony molybdate, aluminum hydroxide, molybdenum oxide, and magnesium hydroxide.

The construction of the kitchen furniture of the present invention includes a core material impregnated with wood protection oil for water repellency, waterproofing and insect repellency, an undercoat layer formed on the upper surface of the core material, and a plant extract and conductive filler to form the undercoat layer. An eco-friendly adhesive layer formed on the upper surface, a top coat layer formed on the upper surface of the eco-friendly adhesive layer using an eco-friendly top coat paint, a flame retardant waterproof layer formed on the upper surface of the top coat layer, and the upper surface of the flame retardant waterproof layer It is preferable if it comprises the printed layer which is formed.

This invention can protect the health of builders and users by penetrating into the heartwood wood protection oil, a non-toxic wood protection agent based on natural vegetable raw materials that acts as a water repellent, antiseptic, and insect repellent, and uses plant extract and conductive filler to By manufacturing an eco-friendly adhesive, it is possible to maintain a firm connection between the undercoat layer and the top coat layer, and by using an eco-friendly adhesive and eco-friendly top coat paint, it is possible to protect the health of the constructor and the user.

1 is a cross-sectional configuration diagram of a wooden panel of kitchen furniture according to an embodiment of the present invention.
2 is a process flowchart of a method for manufacturing a wooden panel of kitchen furniture according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings in order to describe in detail enough that a person of ordinary skill in the art can easily carry out this invention. Other objects, features, and operational advantages of this invention, including the purpose, operation, and effect, will become more apparent by the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting and presenting the most preferred embodiments to help those skilled in the art from among various possible implementations, and the technical spirit of the present invention is not necessarily limited or limited only by the presented embodiments. No, various changes, additions, and modifications including equivalents or substitutes are possible without departing from the technical spirit of the present invention.

In addition, the terms or expressions used in the specification and claims of the present application are defined on the basis of the principle that the inventor may appropriately define the concept of the term in order to best describe his invention. , should not be construed as being limited only to the conventional or dictionary meaning, but should be interpreted as meaning and concept consistent with the technical idea of this invention. As an example, the expression in the singular includes a plurality of expressions unless the context clearly indicates otherwise, and the expression regarding the direction is set based on the position expressed in the drawings for convenience of description.

1 is a cross-sectional configuration diagram of a wooden panel of kitchen furniture according to an embodiment of the present invention.

As shown in FIG. 1, the construction of a wooden panel of kitchen furniture according to an embodiment of the present invention includes a core 10 impregnated with wood protection oil for water repellency, waterproofing, and insect repellency, and the core 10. The eco-friendly adhesive layer 30 formed on the upper surface of the undercoat layer 20 by using the undercoat layer 20 formed on the upper surface of the The top coat layer 40 formed on the upper surface of the adhesive layer 30, the flame-retardant waterproof layer 50 formed on the upper surface of the top coat layer 40, and the flame-retardant waterproof layer 50 formed on the upper surface of the printing layer 60 .

2 is a process flowchart of a method for manufacturing a wooden panel of kitchen furniture according to an embodiment of the present invention.

As shown in FIG. 2 , the configuration of the method for manufacturing kitchen furniture according to an embodiment of the present invention includes the steps of forming scratches on the surface of the core 10 through sanding and surface treatment (S10), and the surface Heating with hot air to remove moisture from the treated core 10 (S20), preparing wood protection oil for water repellency, waterproofing, and insect repellency (S30), and applying the wood protection oil to the core material (10) Infiltrating (S40), preparing an undercoating material (S50), applying the undercoating material to the upper surface of the core material 10 to form the undercoating layer 20 (S60), and plant essence A step of manufacturing an eco-friendly adhesive using a conductive filler (S70), a step of coating the eco-friendly adhesive on the upper surface of the undercoat layer 20 to form an eco-friendly adhesive layer 30 (S80), and an eco-friendly top coat paint manufacturing (S90), applying the eco-friendly topcoat paint to the upper surface of the eco-friendly adhesive layer 30 to form the top coat layer 40 (S100), and using a water-soluble urethane elastic coating material for flame retardant waterproofing Preparing a paint (S110), coating the flame retardant waterproof paint on the upper surface of the top coat layer 40 to form a flame retardant waterproof layer 50 (S120), and using an ultraviolet curing paint to form the flame retardant waterproof layer 50 ) forming the printed layer 60 by performing a printing process on the (S130), air spraying so that the UV-curing paint does not agglomerate (S140), and manufacturing a wood panel by UV irradiation (S150) ), and manufacturing kitchen furniture by assembling the wooden panels horizontally and vertically to form a space for accommodating tableware or cooking utensils, or to form a support for placing tableware, cooking tools, and cooking materials ( S160) is included.

The operation of the kitchen furniture and its manufacturing method according to an embodiment of the present invention by the above configuration is as follows.

First, the surface of the core material 10 is cleaned, and then, dust, oil, paint, stains, contamination, foreign substances, etc. are removed, and a surface treatment operation is performed to create scratches with sandpaper or a sanding machine to enhance oil penetration. do (S10).

Next, after the sanded core 10 is put into the hot air heating chamber, the wood protection oil is penetrated by hot air heating for 45 to 75 minutes under the condition that the temperature of the hot air heating chamber is 180 to 250 ° C. Remove the water (S20).

Then, silicone oil, aromatic base oil, and paraffin base oil are mixed and used in 1: 1: 05 parts by weight, but 2 to 3 parts by weight based on 100 parts by weight of citrus oil as insect repellent oil to prepare wood protection oil ( S30).

Next, the wood protection oil is penetrated into the core material 10 by using a roller-type or brush-type application device, or by using a spraying device (S40).

The number of times of application of the wood protection oil is preferably 3 or more times to make the original color and wood grain of the core 10 stand out, and to secure the efficiency and durability of water repellency, waterproofing, insect repellency, etc. It is possible to do 3 times for 50㎡.

In order to allow the wood protection oil to penetrate deeper into the tissue of the core 10 more quickly, the outer surface of the roller-type or brush-type application device is made of soft velvet or cloth, etc.

The drying time of the first penetration of the wood protection oil is about 3 hours, and the complete drying time is about 24 hours, but there may be some differences depending on the type of the core 10, the climate and environment of the work place. Therefore, the re-penetration time of the wood protection oil is at least 3 hours, and for complete absorption, it is desirable to perform the re-penetration process after 24 hours, and it is preferable to work at a temperature of 10°C or higher.

Due to the wood protection oil, the heartwood 10 realizes its original color and pattern that stands out, suppresses distortion (smooth moisture control ability of wood due to non-coating film formation), excellent water repellency (contains oil in the heartwood tissue), 99.99% of It has antibacterial activity (contains insect repellent oil), and excellent penetrability when repainting after a certain period of time.

Table 1 below shows the experimental results of the antimicrobial activity due to the penetration of wood protection oil, and shows that there is a significant effect in the extinction of Staphylococcus aureus and E. coli.

Test Items Test result
Control sample Staphylococcus aureus
ATCC 6538 (Staphylococcus aureus)
Concentration of inoculum solution Number of bacteria after 24 hours (CFU/mL)
antibacterial activity
2.5×10 ⁵ CFU mL 6.7×10 ⁵ < 20
4.5 Escherichia coli
ATCC 8739 (E. coli)
Concentration of inoculum solution Number of bacteria after 24 hours (CFU/mL)
antibacterial activity
2.1×10 ⁵ CFU mL 5.5×10 ⁵ <20
4.4

* JIS Z 2801:2010

* Standard film: Material is sterilized PP film, size is 40×40mm

* Sample treatment: 24 hours before, 0.4mL of the culture medium was placed on the core material coated with the sample.

standard film cover

* Antibacterial activity = log ₁₀ (number of control bacteria after 24 hours)/(number of samples after 24 hours)

* Antibacterial effect: Antibacterial activity of 2.0 or higher

In addition, the wood protection oil penetrating into the heartwood 10 has an insect repellent effect, thereby interfering with various growth stages of insects. That is, it is possible to provide an effect capable of interfering with all stages such as egg laying, larvae entering, and adults entering.

In addition, the wood protection oil penetrating into the heartwood 10 is a non-toxic wood protection agent based on natural vegetable raw materials, and as a result of the toxic volatile organic compound emission test, formaldehyde: less than the measurement standard (less than 0005 mg), T-VOC emission amount: 01 mg /m2, h, as well as non-detection of heavy metals (8 heavy metals such as selenium, barium, tin, mercury, lead, arsenic, chromium, and cadmium), non-emitting T-VOC, non-toxic and odorless, non-volatile 992% By having it, it is possible to protect the health of the constructor and the user.

Next, a paint for undercoating is prepared (S50).

The undercoating composition for preparing the undercoating material is prepared by reacting a polyhydric alcohol and a polybasic acid in an amount of 35 to 45: 45 to 55 parts by weight to prepare an intermediate, and then reacting 2 to 3 parts by weight of a polyamine based on 100 parts by weight of the intermediate. to prepare an amine-modified unsaturated polyester resin, and polymerized with 6 to 7 parts by weight of dipentaerythritol polyacrylate and 10 to 13 parts by weight of trimethylolpropane triacrylate based on 100 parts by weight of the amine-modified unsaturated polyester resin By preparing a modified unsaturated polyester resin and mixing the modified unsaturated polyester resin with a crosslinking monomer, processability and surface strength are excellent, and weather resistance and water resistance are increased.

Then, in order to increase the elasticity and tension with respect to 100 parts by weight of the coating composition for undercoating, 2 to 3 parts by weight of graphene fibers and 4 to 5 parts by weight of cellulose nanofibers are mixed to prepare a coating for undercoating.

By using the undercoating material prepared in this way, it is possible to secure strong mechanical properties when the eco-friendly adhesive is cured in a state where the mechanical strength is increased with respect to the wood impregnated with oil due to partial mixing with the eco-friendly adhesive, which will be described later. .

Next, an undercoating layer 20 is formed by applying an undercoating paint to the upper surface of the core 10 ( S60 ).

Next, an eco-friendly adhesive is manufactured (S70).

The eco-friendly adhesive composition contains 23 to 24 parts by weight of plant essence, 13 to 15 parts by weight of a hybrid resin mixture, 7 to 8 parts by weight of a diluent, 4 to 6 parts by weight of a thickener, 7 to 6 parts by weight of a plasticizer, based on 100 parts by weight of the polyurethane prepolymer as the main material. 9 parts by weight, 12 to 15 parts by weight of graphene, and 5 to 7 parts by weight of a flame retardant are added and mixed to prepare an eco-friendly adhesive composition. Then, an eco-friendly adhesive is prepared by mixing a curing agent in a weight ratio of 4:6 with respect to the eco-friendly adhesive composition.

The plant extract is used by mixing at least one of lacquer extract, rosin extract, kelp extract, rubber tree extract, oleander extract, daffodil (Hwangchokgyu, Hibiscus manihot) extract, benjamin extract, garlic extract, wormwood extract, plum extract , In particular, the main component of lacquer is urushiol, a polyphenol derivative, which is colorless and transparent at first or turns black due to the action of oxidizing urea when in contact with air and forms a coating film. It is a viscous colorless liquid with the _{chemical formula C 21} H ₃₄ O ₂ The boiling point is 210-222 °C (04-06 mm Hg). In the air, it turns black and becomes thick and has the characteristic of coagulation.

When the content of the plant essence is less than 23 parts by weight, the adhesion function effect provided by the plant essence is insignificant, and when the content of the plant essence exceeds 24 parts by weight, the mixture content of the rest of the composition, particularly the hybrid resin mixture, is lower than that of the essence Mechanical properties of the composition may be reduced.

The hybrid resin mixture uses a CNT nano-based material, a poly lactic acid (PLA) resin, a cellulose nanofiber, and carbon fiber in a weight ratio of 7 to 8: 18 to 24: 11 to 15: 5 to 7 by stirring to increase the viscosity. After being prepared in a gel-type having, and then formed by stirring a filler in the gel-type composition, it provides an effect of quickly and firmly sealing the sanded surface, which is a damaged part.

The CNT nano-based material is formed to improve adhesion with the outer surface of the damaged part, and is formed by adding and mixing the CNT nano-composite raw material and the thermally conductive adhesive in a weight ratio of 24 to 27: 9 to 12.

The CNT nanocomposite raw material has properties such as mechanical properties, conductivity properties, electrical conductivity, heat dissipation, high strength, light weight, abrasion resistance, and electromagnetic wave removal, and the CNT nanocomposite raw material is PCM capsule powder, organic in addition to CNT nanotubes (Carbon Nanotube). Metal polymer (Polymer), polypropylene resin in a weight ratio of 12 to 13 parts by weight, 8 to 9 parts by weight, 10 to 12 parts by weight, 17 to 19 parts by weight based on 100 parts by weight of CNT nanotubes (Carbon Nanotube) Corresponding to By providing in the form of a composite plastic resin using the composition, it not only improves the adhesion when filling the reinforcing material, but also heat diffusion and heat transfer by PCM capsule powder for the latent heat of the wall or floor surface where the wood panel is used, and the CNT nanocomposite Through the heat dissipation effect, it is possible not only to improve the emission efficiency to the outside, but also to uniformly maintain the temperature of the area where the undercoat composition and the topcoat composition meet during incomplete curing with the above-mentioned undercoat composition and the topcoat composition during the manufacturing process. It also serves to provide a structure for maintaining a firm engagement with the layer.

The eco-friendly adhesive prepared in this way is a thermally conductive adhesive with excellent adhesion and thermal conductivity containing additional graphene fibers, and contains a small amount (within 5% by weight of the total weight) of nano-sized fine graphene fibers as a conductive filler, It exhibits remarkably high thermal conductivity that conventional thermally conductive adhesives cannot show, and at the same time has excellent adhesiveness and heat dissipation properties, so that the adhesion performance can be improved through thermal stabilization between both sides of the wood panel forming surface.

In addition, since the eco-friendly adhesive has excellent adhesive strength even in the presence of a little moisture, it can be used regardless of humidity.

In addition, the eco-friendly adhesive is a plant-based, non-toxic, eco-friendly material made by extracting the extract from the leaves and stems of plants (more than 10 types of trees, grass, etc.), and it is a high-performance, multi-functional adhesive that maintains adhesion even in water by remarkably strengthening the adhesive strength. As a result, it has a strong adhesion of 40Kgf/cm2 and excellent solidity of 99% or more when completely dried.

In addition, the eco-friendly adhesive is eco-friendly, that is, non-toxic and odorless. ① Formaldehyde non-detection: T-VOC (total volatile organic compound) emission less than 01mg/m2, h (tested by Korea Research Institute of Chemical Convergence Test), ② Heavy metal non-detection , No odor (tested by Korea Research Institute of Chemical Convergence Research), ③ Notification standards: formaldehyde 012mg/m2, toluene 008mg/m2, total volatile organic compounds 4mg/m2 or less (based on notification applied after July 2010 by Korea Institute of Technology and Standards), ④ Excellent durability: Water resistance, alkali resistance, non-chemical resistance, bending resistance, abrasion resistance, ⑤ Excellent adhesive strength: It has the characteristics of 0.59N/mm2 stainless steel, 1.93N/mm2 wood, and 0.50N/mm2 PVC.

Table 2 below is a table summarizing the characteristics of eco-friendly adhesives.

Adhesive strength Stainless steel: 0.59N/㎟
Wood: 1.93N/㎟
PVC: 0.50N/㎟ number of operations 1 time mixing ratio Main 4: Hardener 6 storage duration 1 year (keep in a cool place avoiding direct sunlight and store the hardener separately) Applications Wood, iron metal, rubber, plastic, etc. Appropriate working temperature 10~30℃ Furtherance Two-component type (oil, binder) hardening drying 5h non-volatile matter 99% completely dry 2 days housekeeping time 90min

After the eco-friendly adhesive is manufactured in this way, in order to prevent deterioration of the coating performance between the core material 10 impregnated with the wood protection oil and the undercoat, the eco-friendly adhesive coating process is performed before the undercoat is completely cured to perform the eco-friendly adhesive A layer 30 is formed (S80).

The eco-friendly adhesive is sufficient to use only about half of the amount of the existing adhesive when the adhered area of the core 10 is the same. After application, in order to speed up the drying time, the eco-friendly adhesive is heated to about 40 to 60 ℃ with a gas torch or the like and heat-dried. It is preferable that the process of making it is additionally performed.

Next, an eco-friendly topcoat is manufactured (S90).

The resin composition used for the eco-friendly topcoat includes 30-40 parts by weight of an aliphatic polyisocyanate curing agent and 5 parts by weight of an additive based on 100 parts by weight of the polyester main resin having a viscosity of 1500-2500 (cps/25°C), The ester main resin contains 14 to 17 parts by weight of isophthalic acid, 23 to 24 parts by weight of adipic acid, and 24 to 25 parts by weight of neopentyl glycol, and the aliphatic polyisocyanate curing agent is methylene diisocyanate, isophorone diisocyanate, At least one selected from the group consisting of cyclohexyl diisocyanate, hexamethylene diisocyanate, and isobornyl diisocyanate, the additive is a silicon dioxide mineral, clay mineral, aluminum hydrate, carbonate mineral, VOC content by using a mixture of molten slag This low eco-friendly topcoat is manufactured.

Next, before the eco-friendly adhesive of the eco-friendly adhesive layer 30 is completely cured, an eco-friendly topcoat is applied to form the top coat layer 40 (S100).

Next, a flame retardant waterproof paint is prepared (S110).

The flame retardant waterproof paint is prepared by mixing 2 to 3 parts by weight of a flame retardant, 2 to 3 parts by weight of a sunscreen, and 4 to 6 parts by weight of an ultraviolet curing paint based on 100 parts by weight of a water-soluble urethane elastic coating material,

The flame retardant uses any one or a mixture of two or more of antimony molybdate, aluminum hydroxide, molybdenum oxide, and magnesium hydroxide.

Next, the topcoat layer 40 forms the flame retardant waterproof layer 50 by performing a coating process for forming the flame retardant waterproof layer 50 on the upper surface (S120).

After spraying the flame-retardant waterproof paint on the top of the top coat layer 40 using the adhesive force of the top coat layer 40 and before it hardens, it is applied at least 3 times and dried with hot air to maintain flatness by rolling.

The flame-retardant waterproofing layer 50 thus formed not only prevents damage to the core 10 due to external heat and ultraviolet rays, but also prevents external water and moisture from being absorbed into the core 10 .

The flame-retardant waterproofing layer 50 forms a non-flammable waterproofing layer by applying a liquid flame-retardant waterproofing paint to the upper surface of the topcoating layer 40. In addition to the local damage to the topcoating layer 40, the undercoating layer 20, an eco-friendly adhesive layer (30), the airtightness of the multilayer structure between the top coat layer 40, and the irregular surface of the core material 10 can also provide an effect of matching a uniform height.

Next, a printing layer 60 is formed by performing a printing process on the flame retardant waterproof layer 50 using an ultraviolet curing paint (S130),

The printing pattern in the printing process is various and may be various, such as the shape of wood grain, and the printing paint uses an ultraviolet curing paint formed of an acrylic resin.

Next, an air spraying process using air pressure is performed in order to prevent the ultraviolet curing paint from aggregating non-uniformly (S140).

After the air spraying process, a wood panel is manufactured by irradiating a UV light source to the print layer 60 through a UV irradiation device and curing it. Through such a UV irradiation process, it is possible to minimize interference with the formation of the flame retardant waterproof layer 50 due to the printed layer 60 .

Next, kitchen furniture is manufactured by assembling the wooden panels horizontally and vertically to form a space for accommodating tableware or cooking utensils, or to form a support for placing tableware, cooking tools, and cooking materials ( S160).

1: bracket 2, 10: wiper

Claims (7)

A step of surface treatment by sanding to form a scratch on the surface of the core material, a step of heating with hot air to remove moisture from the surface-treated core material, and the steps of preparing a wood protection oil for water repellency, waterproofing, and insect repellency; The steps of permeating the wood protection oil into the core material, the steps of preparing a paint for undercoating, the steps of applying the undercoating paint to the upper surface of the heart material to form an undercoating layer, and using plant extract and conductive filler to apply an eco-friendly adhesive Manufacturing steps, coating the eco-friendly adhesive on the upper surface of the undercoat layer to form an eco-friendly adhesive layer, manufacturing an eco-friendly topcoat paint, and applying the eco-friendly top coat paint to the top surface of the eco-friendly adhesive layer Forming a layer, manufacturing a flame-retardant waterproof paint using a water-soluble urethane elastic coating material, coating the flame-retardant waterproof paint on the upper surface of the top coat to form a flame-retardant waterproof layer; Forming a printed layer by performing a printing process on the flame retardant waterproof layer, air spraying so that the UV curing paint does not agglomerate, manufacturing a wood panel by irradiating UV light, and using the wood panel for kitchen comprising the steps of making furniture;
In the step of preparing the wood protection oil, silicone oil, aromatic base oil, and paraffin base oil are mixed in 1: 1: 05 parts by weight and mixed with 2 to 3 parts by weight based on 100 parts by weight of citrus oil mixed with insect repellent oil. A method of manufacturing kitchen furniture, characterized in that by producing a wood protection oil. delete The method of claim 1,
The step of preparing the paint for the undercoat,
reacting a polyhydric alcohol and a polybasic acid in an amount of 35 to 45: 45 to 55 parts by weight to prepare an intermediate;
preparing an amine-modified unsaturated polyester resin by reacting 2 to 3 parts by weight of a polyamine based on 100 parts by weight of the intermediate;
Polymerizing with 6 to 7 parts by weight of dipentaerythritol polyacrylate and 10 to 13 parts by weight of trimethylolpropane triacrylate based on 100 parts by weight of the amine-modified unsaturated polyester resin to prepare a modified unsaturated polyester resin;
preparing a coating composition for undercoating by mixing the modified unsaturated polyester resin and a crosslinking monomer;
The method for manufacturing kitchen furniture, characterized in that it comprises the step of preparing a paint for undercoat by mixing 2 to 3 parts by weight of graphene fibers and 4 to 5 parts by weight of cellulose nanofibers with respect to 100 parts by weight of the undercoating composition. The method of claim 1,
The step of producing the eco-friendly adhesive,
Based on 100 parts by weight of polyurethane prepolymer, 23 to 24 parts by weight of plant essence, 13 to 15 parts by weight of hybrid resin mixture, 7 to 8 parts by weight of diluent, 4 to 6 parts by weight of thickener, 7 to 9 parts by weight of plasticizer, graphene 12 to 15 parts by weight, adding and mixing 5 to 7 parts by weight of a flame retardant to prepare an eco-friendly adhesive composition;
A method of manufacturing kitchen furniture, comprising the step of preparing an eco-friendly adhesive by mixing a curing agent in a weight ratio of 4:6 to the eco-friendly adhesive composition. The method of claim 1,
The step of preparing the eco-friendly topcoat includes 30-40 parts by weight of an aliphatic polyisocyanate curing agent and 5 parts by weight of an additive based on 100 parts by weight of a polyester main resin having a viscosity of 1500-2500 (cps/25°C),
The polyester main resin includes 14 to 17 parts by weight of isophthalic acid, 23 to 24 parts by weight of adipic acid, and 24 to 25 parts by weight of neopentyl glycol, and the aliphatic polyisocyanate curing agent is methylene diisocyanate, isophorone di At least one selected from the group consisting of isocyanate, cyclohexyl diisocyanate, hexamethylene diisocyanate, and isobornyl diisocyanate,
The additive is a method of manufacturing kitchen furniture, characterized in that by using a mixture of silicon dioxide mineral, clay mineral, aluminum hydrate, carbonate mineral, and molten slag to produce an eco-friendly topcoat with low VOC content. The method of claim 1,
In the step of preparing the flame retardant waterproof paint, based on 100 parts by weight of a water-soluble urethane elastic coating material, 2 to 3 parts by weight of a flame retardant, 2 to 3 parts by weight of a UV blocker, 4 to 6 parts by weight of an ultraviolet curing paint are mixed and prepared,
The flame retardant is antimony molybdate, aluminum hydroxide, molybdenum oxide, a method of manufacturing kitchen furniture, characterized in that using any one or a mixture of two or more of magnesium hydroxide. It is prepared by the method according to any one of claims 1 or 3 to 6,
A core material impregnated with wood protection oil for water repellency, waterproofing and insect repellency,
an undercoat layer formed on the upper surface of the core material;
An eco-friendly adhesive layer formed on the upper surface of the undercoat layer using plant extract and conductive filler,
A top coat layer formed on the upper surface of the eco-friendly adhesive layer using an eco-friendly top coat, and
a flame retardant waterproof layer formed on the upper surface of the top coat layer;
Kitchen furniture comprising a printed layer formed on the upper surface of the flame retardant waterproof layer.

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