KR20100019200A - Flooring comprising natural fiberboard and process for preparing the same - Google Patents

Abstract

PURPOSE: A floor material with a natural fiberboard and a manufacturing method thereof provide excellent durability against the deformation and discoloration of the flooring material. CONSTITUTION: A floor material with a natural fiberboard comprises a base layer(20) and a surface layer(10). The base layer comprises a natural fiberboard(21). The base layer is integrally coupled with the surface layer by using a thermosetting method. A rear surface layer(22) is placed on the bottom of the base layer. A coating layer(11) is spread on the top of the surface layer.

Description

Flooring material comprising natural fiber board and manufacturing method thereof {Flooring comprising natural fiberboard and process for preparing the same}

The present invention relates to a flooring material comprising a natural fiber board and a method for manufacturing the same, and more particularly, the surface layer of the flooring material and the substrate layer formed of a natural fiber board integrated through a heating and pressing process, the ultraviolet or heat on the top It relates to a flooring material including a natural fiber board formed of a finished product processed in the form of T & G (tongue and groove) after cutting to an appropriate standard, including a curable surface treatment layer and a lower back layer.

A product widely used as a conventional flooring material, based on a water-resistant plywood laminated with one or more natural veneers in order to prevent dimensional deformation, the natural veneer is integrated with an adhesive, and then urethane acrylic There are plywood ondol floors and solid wood floors coated with surface treatment materials of latex materials.

In addition to the plywood ondol floor, MDF (Medium Density Fiberboard) or HDF (High Density Fiberboard) layer as a base material based on the printing layer impregnated with melamine resin and the surface treatment layer of melamine material is a reinforced floor product.

Conventional plywood ondol flooring, wood flooring, reinforced flooring flooring has the disadvantage that deformation, discoloration may occur depending on the dry state of the floor and the humidity of the room by using a wood material as a base material. In addition, due to the adhesive used in the manufacturing and construction process, there was a problem in that a large amount of formaldehyde or volatile organic compounds released after construction.

In addition, the use of wood as a building material is not only damaging forest resources, but also causing environmental problems such as increasing the concentration of carbon dioxide (CO ₂ ) in the atmosphere and becoming a major cause of global warming.

Korean Patent Laid-Open Publication No. 2003-94934 discloses a soundproof stone flooring material characterized in that the surface layer and the base material layer are bonded to the phenol compound resin layer, and the soundproof sheet is bonded to the bottom surface of the base material layer to the phenol compound resin layer. This relates to a soundproof floor using a perforated substrate layer and a soundproof sheet.

Korean Patent Laid-Open Publication No. 2004-95136 discloses a reinforced ondol floorboard in which a high-pressure resin-injected natural veneer layer, an adhesive layer and a back grooved substrate layer are laminated from above, which is an amino-based resin that has not been processed by conventional methods. It relates to a primer treatment UV coating method for coating on the surface of the product impregnated with.

Korean Patent Laid-Open Publication No. 2000-71992 is made by laminating a glass fiber layer, an adhesive layer, a veneer layer, and a surface coating layer sequentially on a vinyl chloride resin layer, and the veneer layer is impregnated with a water-resistant impregnation resin, which is impregnated with a water-resistant impregnation resin. Although a veneer laminated vinyl chloride resin flooring agent has been disclosed, it relates to preventing discoloration, curling, and cracking of veneer by water impregnation of veneer.

Korean Patent Laid-Open Publication No. 2007-0053845 discloses a flooring material comprising a veneer and a high density fiber board (HDF) integrated with an adhesive layer, and having a surface treatment layer and a backing layer at the top and bottom, respectively, which is used as a surface material. The present invention relates to the production of natural reinforced floors by using high-density fiber boards bonded to the base layer and then surface coating of the top and bottom portions.

Korean Patent Laid-Open Publication No. 2008-0017969 discloses a flooring material characterized by integrating a surface layer and an inorganic board using printing with an adhesive layer, and having a surface treatment layer and a backing layer at the top and bottom, respectively. The present invention relates to the manufacture of a flooring material which forms a surface layer through and uses inorganic boards such as magnesium board, calcium silicate board, fiber reinforced cement board (CRC board) and gypsum cement board as a substrate.

The present invention has been made to solve the problems of the above-described conventional flooring material and environmental problems occurring through the use of wood materials, in the flooring material comprising a natural fiber board and a manufacturing method thereof, the natural fiber board as a substrate By adhering and manufacturing the surface layer and the base layer through heating and pressurization without any adhesive, it minimizes the emission of toxic substances generated in the flooring material after the construction process or construction to prevent pollution of indoor air and solve environmental problems. It is an object of the present invention to provide a floor covering that can be used. In addition, by using a fibrous natural fiber board with excellent moisture permeability as a base material, to provide a floor flooring material resistant to deformation and discoloration of the flooring material after the flooring installation.

In order to achieve the above object, the present invention provides the following configuration.

The present invention provides a flooring material comprising a natural fiber board formed of a substrate layer comprising a surface layer and a natural fiber board.

The base layer including the natural fiber board is characterized in that the surface layer and the heat-integral, the natural fiber board is a board for manufacturing natural fibers of jute, kenaf, cactus fiber, bamboo fiber as a raw material It provides a flooring material comprising a natural fiber board, characterized in that consisting of at least one selected from the ashes.

In addition, a back layer is laminated under the base layer including the natural fiber board, wherein the back layer is UV curable paint, thermosetting paint, wax, paper, silicone water repellent, silicone waterproof, synthetic resin It provides a flooring material comprising a natural fiber board, characterized in that formed in at least one selected.

In addition, a surface treatment layer is applied to the top of the surface layer, and the surface treatment layer provides a floor covering material comprising a natural fiber board, characterized in that one of the ultraviolet curing or thermosetting surface treatment layer containing acrylate. .

At this time, the flooring material is made of a connection structure of any one of a connection structure by a T & G (Tongue and Groove), a click system, or a connector is cut into a form that can be easily coupled.

Method for producing a floor covering material comprising a natural fiber board of the present invention comprises the steps of: bonding a base layer and a surface layer comprising a natural fiber board; Cutting and shape-processing the bonded substrate layer and the surface layer; Provided is a method of manufacturing a floor covering comprising a natural fiber board.

In addition, before the step of adhering the substrate layer and the surface layer, the step of forming a back layer below the natural fiber board; It provides a method for producing a floor covering comprising a natural fiber board, characterized in that it further comprises.

And, after adhering the substrate layer and the surface layer, the step of adhering the surface treatment layer on the top of the surface layer; It provides a method for producing a floor covering comprising a natural fiber board, characterized in that it further comprises.

In this case, the step of adhering the substrate layer and the surface layer comprising the natural fiber board, the hot step of heating and pressing for 200 seconds to 280 seconds at a pressure of 150kg / ㎠ at a temperature of 160 ℃ to 220 ℃; In a cooling step of pressurizing for 40 seconds to 100 seconds at a pressure of 150kg / ㎠ at room temperature; It provides a method for producing a floor covering comprising a natural fiber board, characterized in that made.

Flooring material comprising the natural fiber board according to the present invention and its manufacturing method has the following effects.

First, natural wood boards are used instead of the existing wood materials, which have superior environmental performance compared to wood flooring materials.

Second, using the natural fiber board of the fiber having excellent moisture permeability as the base layer, there is an effect having excellent durability against the deformation and discoloration of the flooring floor material caused by the generation of moisture in the floor concrete surface or room after the flooring material installation.

Third, natural fiber board is used as the base layer, and when the surface layer is manufactured by a heat fusion process through heating and pressing without a separate adhesive from the base layer of the natural fiber board, the adhesive generated from the flooring material after the construction process or construction By minimizing the release of toxic substances by the indoor air pollution can be prevented.

In the present invention for achieving the above object in the flooring material comprising a natural fiber board, using a natural fiber board as the base layer and the base layer and the surface layer of the natural fiber board is integrated by heating and pressure without applying an adhesive To provide a floor covering comprising an environmentally friendly and durable natural fiber board, characterized in that it has a surface treatment layer and a back layer, respectively, at the top and bottom of the flooring material.

In addition, the present invention is a method of manufacturing a floor covering material comprising a natural fiber board, the step of forming a back layer on the lower portion of the natural fiber board, the step of adhering the surface material such as veneer on the upper portion of the natural fiber board, It provides a method of manufacturing a floor covering material comprising a natural fiber board comprising the step of forming a surface coating layer on the surface material, and cutting and shape processing.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the configuration of the floor covering material including a natural fiber board 21 according to an embodiment of the present invention. As shown in FIG. 1, the flooring material is largely composed of a base layer 20 and a surface layer 10, and the surface layer 10 is laminated with a surface material 12 and a surface treatment layer 11 such as veneer from below. The base layer 20 is composed of a back layer 22 and a natural fiber board 21 from below.

The natural fiber board preferably uses a specific gravity of 400kg / ㎥ to 900kg / ㎥. The natural fiber board 21 is harder than water-resistant plywood or high-density fiberboard (HDF), has excellent water resistance and dimensional safety, high mechanical strength, excellent moisture permeability, and is advantageous in preventing warpage deformation of flooring materials and is made of a fibrous material. Impact resistance and tack resistance have properties suitable for the production of flooring material. In addition, unlike conventional flooring materials, the thermal bonding process enables adhesion by internal adhesive components, which can significantly reduce the amount of toxic substances such as formaldehyde and volatile organic compounds generated by using adhesives in existing flooring materials. have.

Kenaf board, which can be used as an example of such a natural fiber board 21, is manufactured using vegetable fibers as a raw material, unlike wood materials, which are subjected to bonding and antiseptic processes during manufacturing, and thus is an environmentally friendly material, and the board is bonded to thin fibers. By processing in the form, the physical properties are uniform. In addition, preferably, the natural fiber board 21 may be formed by selecting one or more of board materials made of natural fibers such as jute, cactus fiber, bamboo fiber, etc. in addition to the kenaf board.

Based on the advantages of the natural fiber boards specified above, compared with the wood flooring and ondol flooring, and the reinforced flooring flooring using HDF as a base material, respectively,

In contrast to the wood floor and ondol floor, there is an advantage of excellent surface scratch resistance. In addition, the plywood using the wood floor and ondol floor as a base material is manufactured by laminating an odd number of thin wood veneer (Veneer), there is a disadvantage in that a large amount of formaldehyde is released by using an adhesive when bonding the end plate. On the other hand, in the case of the floor covering material comprising the natural fiber board of the present invention, unlike the conventional process of forming a flooring by heating and pressurizing after applying a separate adhesive between the plywood and the solid wood / veneer in the manufacturing process, using a separate adhesive Instead of heating and pressing the surface layer of the natural fiber board 21 and the base layer in a stacked state, the organic binder used in the manufacture of the natural fiber board reacts to the surface layer 10 by melting the binder. Since the base layer 20 is bonded to each other, the release of harmful substances may be less.

And, compared with the reinforced flooring flooring, reinforced flooring using the conventional MDF, HDF as a base material is water-resistant in the case of the flooring material comprising the natural fiber board of the present invention as compared to the product deformation such as swelling upon immersion And excellent moisture resistance. In addition, in the case of the conventional reinforced floor flooring to form a flooring through the heating and pressure by putting a separate adhesive layer between the surface printing layer and HDF in the case of the conventional flooring, in the case of the flooring flooring comprising the natural fiber board of the present invention When the surface layer of the natural fiber board 21 and the substrate layer are heated / pressurized without using an adhesive, the organic binder used in the manufacture of the natural fiber board reacts and the surface layer 10 is melted by the binder. ) And the base layer 20 is bonded to reduce the emission of harmful substances.

As shown in FIG. 1, the surface layer 10 coupled with the natural fiber board 21 has an external appearance such that surface materials 12 such as solid wood, veneer, film, and printing paper create a natural texture effect of solid wood. Used for aesthetics, each surface material 12 can be applied according to the needs of the consumer. In the case of the surface treatment layer 11 existing under the surface layer 10, the surface coating 12 is finished on the surface material 12, and the surface treatment layer 11 is urethane on the surface material 12. It is formed by coating the ultraviolet curable or heat curable surface treatment layer 11 containing acrylate as a main component, and serves to improve breakage due to immersion or impact. However, the surface treatment layer 11 may be omitted depending on the use.

As shown in FIG. 1, the lower layer 22 of the natural fiber board 21 prevents warping or curling for bonding with the surface layer 10 to maintain the balance of the natural fiber board 21. ) Can be formed. The back layer 22 is to be formed before the bonding of the natural fiber board 21 and the surface layer 10, the back layer 22 is UV curable paint, thermosetting paint, wax, paper, silicon-based It is to be formed of at least one selected from a water repellent, silicone-based waterproofing agent, synthetic resins. More preferably, it is formed by coating an ultraviolet curable or thermosetting paint in the same manner as the top surface treatment layer 11. However, the back layer 22 may be omitted depending on the purpose.

Figure 2 is a manufacturing process of the floor covering according to an embodiment of the present invention, the manufacturing process is largely divided into the following three processes.

The first step is a step of applying a backing layer to the bottom of the natural fiber board, the first step is to prevent the warping or curling of the natural fiber board to maintain the balance of the natural fiber board and the surface layer and the natural fiber board Configure to form prior to bonding. This first step can be omitted depending on the use of the floor covering.

The second process is an adhesion process between the surface material of the surface layer and the natural fiber board. In the second step, the surface layer and the natural fiber board are laminated and then bonded by melting of a binder included in the natural fiber board through heating and pressurization. Therefore, the surface material of the surface layer and the natural fiber board can be directly bonded without a separate adhesive.

In this case, preferably, the second step of adhering the surface layer and the natural fiber board is primarily a hot step of heating and pressing for 200 seconds to 280 seconds at a pressure of 150 kg / cm 2 at a temperature of 160 ° C. to 220 ° C. And, the substrate layer formed of the surface layer and the natural fiber board through the melting of the binder in the natural fiber board without a separate adhesive through a cooling process of pressing for 40 seconds to 100 seconds at a pressure of 150kg / ㎠ at room temperature secondly It can be integrated.

The third step is a cutting and processing step of the flooring material, and in the third step, the panel integrated through the second step is cut to the size of a general flooring material, and then the ultraviolet curing type mainly composed of urethane acrylate on the surface layer. Or coating the thermosetting surface treatment layer to complete the surface layer. However, the process of forming the surface treatment layer in the third step may be omitted depending on the use.

In the cutting and processing of the flooring material, as shown in FIG. 3, as shown in FIG. 3, four surfaces in the longitudinal direction and the width direction are respectively provided with two faces and grooves (Tongue 70) formed therein. Groove: It is preferable to manufacture the floor surface by processing it with two surfaces formed with 80), and it is an integrated mechanical fixing system that combines in a vertical or horizontal direction such as a system using a click system or a connector. Can also be processed.

Hereinafter, preferred embodiments of the present invention will be described. However, the following examples are provided to illustrate the present invention, and the present invention is not limited to the following examples.

A flooring material comprising a natural fiber board made of a natural fiber board as shown in Figure 1 by heating and pressing after laminating a surface layer composed of a natural veneer, and a UV cured surface treatment layer as a surface material as a base material.

[Comparative Example]

A plywood floor made of a water-resistant plywood as a base layer and laminated with natural veneer on top of it and composed of a UV cured surface treatment layer.

[Test Example]

The environmental harmfulness (formaldehyde detection amount) and the scratch resistance were compared with respect to the flooring material of the examples and comparative examples, and the results are shown in Tables 1 and 2.

 test item  Comparative example  Example  Formaldehyde Detection (mg / L)  About 1.5  Less than 0.03

 test item  Comparative example  Example  Resistance  1H or less  3H or more

Looking at the experimental results of the above-described examples and comparative examples, the flooring material including the natural fiber board of the present invention is improved in the scratch resistance compared to the plywood floor based on the water-resistant plywood as a comparative example, formaldehyde which is a harmful component It can be seen that the detection amount is significantly reduced.

While the invention has been described with reference to the preferred embodiments, those skilled in the art will appreciate that modifications and variations of the elements of the invention may be made without departing from the scope of the invention. In addition, many modifications may be made to particular circumstances or materials without departing from the essential scope of the invention. Therefore, the invention is not limited to the details of the preferred embodiments of the invention, but will include all embodiments within the scope of the appended claims.

1 is a cross-sectional view of the floor covering material comprising a natural fiber board according to the present invention.

Figure 2 is a flow chart of the manufacturing process of the floor covering material comprising natural fiber board according to the present invention.

Figure 3 is a finished product shape having a T & G (Tongue and Groove) form of the floor covering material comprising a natural fiber board according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: surface layer 20: substrate layer

11: surface treatment layer 21: natural fiber board

12: surface material 22: back layer

70: Insertion 80: Groove

Claims (13)

A flooring material comprising a natural fiber board comprising a surface layer and a base material layer comprising a natural fiber board. The flooring material of claim 1, wherein the base layer including the natural fiber board is integrated with the surface layer by heat fusion. The floorboard material of claim 1, wherein the natural fiber board comprises at least one selected from a board material manufactured from natural fibers of jute, kenaf, cactus fiber, and bamboo fiber. . The flooring material of claim 1, wherein a backing layer is stacked below the base layer including the natural fiber board. The floor comprising a natural fiber board according to claim 4, wherein the back layer is formed of at least one selected from ultraviolet curable paint, thermosetting paint, wax, paper, silicone water repellent, silicone waterproof, and synthetic resin. Flooring. The floor covering of claim 1 or 4, wherein a top surface of the surface layer is coated with a surface treatment layer. The floor covering material of claim 6, wherein the surface treatment layer is one of an ultraviolet curable or heat curable surface treatment layer including an acrylate. The flooring material of claim 1, wherein the flooring material comprises a connection structure of any one of a connection structure by a T & G, a click system, and a connector. Bonding a base layer and a surface layer including a natural fiber board; Cutting and shape-processing the bonded substrate layer and the surface layer; Method for producing a floor covering comprising a natural fiber board made. The method of claim 9, further comprising: forming a backing layer under the natural fiber board before the step of adhering the base layer and the surface layer; Method for producing a floor covering material comprising a natural fiber board, characterized in that it further comprises. The method according to claim 9, after the step of adhering the substrate layer and the surface layer, the step of adhering the surface treatment layer on top of the surface layer; Method for producing a floor covering material comprising a natural fiber board, characterized in that it further comprises. The method according to claim 10, after the step of adhering the substrate layer and the surface layer, the step of adhering the surface treatment layer on top of the surface layer; Method for producing a floor covering material comprising a natural fiber board, characterized in that it further comprises. The method according to any one of claims 9 to 12, wherein the step of bonding the substrate layer and the surface layer including the natural fiber board, A hot step of heating and pressing for 200 seconds to 280 seconds at a pressure of 150 kg / cm 2 at a temperature of 160 ° C. to 220 ° C .; In a cooling step of pressurizing for 40 seconds to 100 seconds at a pressure of 150kg / ㎠ at room temperature; Method for producing a flooring material comprising a natural fiber board, characterized in that made.

Images