KR20110045402A - Functional loess flooring and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A functional loess floor material and a manufacturing method thereof are provided to ensure high thermal conductivity and prevent heat loss on a floor by employing a loess board as a base layer of the floor. CONSTITUTION: A functional loess floor material(10) comprises a base layer(1), an adhesive layer(2), and a surface layer(3). The base layer is made of a loess board which comprises a bottom layer(4), a first glass wool mesh layer(5), a first middle layer(6), a second glass wool mesh layer(7), a second middle layer(8), a third glass wool mesh layer(9), and a top layer(11). The bottom layer, the first middle layer, the second middle layer, and the top layer include one or more lightweight materials selected from the group consisting of loess, magnesium chloride solution, magnesium oxide, perlite, wood powder, sawdust, a cornstalk crushed material, and a rice hulls crushed material.

Description

Functional loess flooring and its manufacturing method {FUNCTIONAL LOESS FLOORING AND MANUFACTURING METHOD THEREOF}

The present invention relates to a functional ocher flooring material and a method for manufacturing the same, and more particularly, by using the ocher board as a base layer such as ondol floor or reinforced floor, far infrared ray emission, antibacterial property, deodorizing property, abrasion resistance, humidity control property, and air purification property. It relates to an eco-friendly ocher flooring material having excellent functionality such as and a method for producing the same.

In recent years, as the interest in health and the environment has increased in various fields of society, there is an increasing demand for the improvement of performance not only in terms of external aesthetics and interior characteristics, but also in terms of health functionality and eco-friendliness in interior areas such as flooring. It is rising.

In general, a flooring material such as an underfloor floor or a reinforced floor is composed of a surface treatment layer, a surface layer, a substrate layer, and the like from the top. .

Plywood widely used as a base layer of ondol flooring has problems such as supply and demand instability and cost increase, and HDF, which is widely used as a base layer of reinforcing floor, has a problem of poor dimensional stability and high absorption thickness expansion ratio against moisture.

Furthermore, the existing flooring material having such a base layer has a limit in satisfying increasing consumer demand for products having various functionalities, especially eco-friendly products having improved health functionalities.

In addition, the adhesive or surface coating material used for such flooring is generally made of a volatile organic compound. Due to such harmful substances released from adhesives and surface coating materials, the occurrence of a so-called sick house syndrome is a social problem.

On the other hand, loess is one of the natural materials that have attracted attention in accordance with such recent interest in health and the environment. In particular, ocher has antibacterial, anti-worm, deodorant and heat storage effects, and when heated to a predetermined temperature or more, it is widely known to emit far infrared rays and have air purification and health functionalities. There have been various efforts to apply such functional loess to flooring, but it is still insufficient to meet market requirements.

Therefore, there is still a need for functional flooring having both health functionalities and eco-friendliness.

The present invention is to solve the above problems, by using a board made mainly of ocher as a base material layer, such as ondol floor or reinforced floor, far infrared emission, antibacterial, deodorant, wear resistance, humidity control, air purification, etc. It is an object of the present invention to provide an ocher flooring material, such as eco-friendly ocher ondol floor or ocher-reinforced floor, and a method of manufacturing the same.

The ocher flooring material according to an embodiment of the present invention for solving the above problem is a base layer; Adhesive layer; And a surface layer, wherein the base layer includes an ocher board including a lower layer part, a first glass wool mesh layer, a first middle layer part, a second glass wool mesh layer, a second middle layer part, a third glass wool mesh layer, and an upper layer part sequentially stacked. Wherein the lower layer, the first and the second middle layer and the upper layer are at least one light material selected from the group consisting of ocher, magnesium chloride aqueous solution, magnesium oxide, perlite, and wood flour, sawdust, corn crushed crushed rice, and chaff crushed rice, respectively. It consists of a mixture comprising a.

In addition, the manufacturing method of the loess floor according to another embodiment of the present invention is sequentially laminated lower layer portion, the first glass wool mesh layer, the first middle layer portion, the second glass wool mesh layer, the second middle layer portion, the third glass wool mesh layer and Forming a base layer including an ocher board consisting of an upper layer; Forming an adhesive layer on the substrate layer; And forming a surface layer on the adhesive layer, wherein the forming of the base layer comprises ocher, an aqueous magnesium chloride solution, magnesium oxide, perlite, and wood flour, sawdust, corn crushed rice, and rice husk crushed. Mixing at least one lightweight material selected from the group to form a mixture; Forming an underlayer made of the mixture; Placing a glass wool mesh on the lower layer to form a first glass wool mesh layer; Curing the lower layer; Forming a first middle layer part of the mixture on the first glass wool mesh layer; Placing a glass wool mesh on the first middle layer to form a second glass wool mesh layer; Curing the first middle layer; Forming a second middle layer part of the mixture on the second glass wool mesh layer; Placing a glass wool mesh on the second middle layer to form a third glass wool mesh layer; Curing the second middle layer portion; Forming an upper layer part of the mixture on the third glass wool mesh layer; And curing the upper layer to form a board, followed by drying to form an ocher board. And polishing the upper surface of the molded ocher board.

Functional ocher flooring according to the present invention has a health functional and eco-friendly properties, and excellent antibacterial, deodorizing power, far infrared emission effect, air purification effect, respiratory diseases such as asthma, skin diseases such as atopic dermatitis, headache, vomiting, etc. New home syndrome can be prevented and improved dramatically.

In addition, the functional ocher flooring according to the present invention has excellent wear resistance and is suitable for long-term use, and excellent in dimensional stability and deformation resistance, and thus easy to construct, repair and replace.

In addition, the functional ocher flooring according to the present invention has a high thermal conductivity and a long heat preservation time to prevent heat loss as compared to the flooring using a conventional substrate layer, it is excellent in economic efficiency, and because it is a flame retardant material may not generate toxic gas in the event of fire.

Hereinafter, the most preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. do.

1 is a cross-sectional view of the ocher flooring according to an embodiment of the present invention.

Referring to Figure 1, the ocher flooring 10 according to an embodiment of the present invention is a base layer (1); And an adhesive layer (2) and a surface layer (3), wherein the base layer (1) includes a lower layer portion (4), a first glass wool mesh layer (5), a first middle layer portion (6), and a second glass wool mesh, which are sequentially stacked. Layer 7. An ocher board comprising a second middle layer 8, a third glass wool mesh layer 9, and an upper layer 11, wherein the lower layer 4, the first middle layer 6, and the second middle layer 8 are formed. And the upper portion 11 is made up of a mixture comprising ocher, magnesium chloride aqueous solution, magnesium oxide, perlite, and at least one lightweight material selected from the group consisting of wood flour, sawdust, corn crushed crushed rice, and chaff crushed rice, respectively. It is characterized by.

In the present invention, the ocher board mainly based on loess is used instead of plywood, HDF (High Density Fiberboard), MDF (Medium Density Fiberboard), and the like, which are conventionally used as the base material layer of the flooring material. Can exert.

The lower layer preferably comprises a mixture of 45 to 65 parts by weight of magnesium oxide, 5 to 25 parts by weight of ocher, 1 to 20 parts by weight of ferrite, and 1 to 20 parts by weight of light material, based on 100 parts by weight of magnesium chloride solution.

The first middle layer and the second middle layer are a mixture of 80 to 100 parts by weight of magnesium oxide, 50 to 70 parts by weight of ocher, 20 to 40 parts by weight of perlite, and 20 to 40 parts by weight of lightweight material, based on 100 parts by weight of aqueous magnesium chloride solution. It is preferable that it consists of.

The upper layer is preferably composed of a mixture of 55 to 75 parts by weight of magnesium oxide, 20 to 40 parts by weight of ocher, 1 to 20 parts by weight of ferrite, and 1 to 20 parts by weight of lightweight material, based on 100 parts by weight of magnesium chloride solution.

In the mixture constituting the ocher board, when the content of the ocher is less than the above range, the functionality of the ocher may be insufficiently exhibited, and when it exceeds the above range, it is difficult to expect the benefit of increasing the content, rather, the hardness of the board There is a risk of deterioration, and the ocher powder may be separated or separated from the board.

In the manufacture of the ocher board, in the process of curing magnesium oxide by hydration, the ocher particles are firmly solidified between the magnesium oxide particles, thereby forming a rigid plate body.

In the mixture forming the ocher board, the magnesium chloride solution serves as a curing accelerator, when the content is less than the above range, the ocher board may not be sufficiently cured, which may cause problems in the hardness of the board, exceeding the above range In this case, it is not possible to expect an advantage of increasing the content, but rather, there is a fear of deterioration of physical properties.

In the aqueous magnesium chloride solution, the weight ratio of water and magnesium chloride is preferably 1: 0.5 to 1: 1.5, and more preferably about 1: 1.

In addition, it is preferable that the magnesium chloride aqueous solution further includes at least one material selected from the group consisting of a curing agent, an antifoaming agent, a liquid silicic acid agent, and a high strength reinforcing agent.

In the mixture constituting the ocher board, in the case of one or more light materials selected from the group consisting of wood flour, sawdust, corn crushed and chaff crushed in the above range, crack prevention, buffering function and humidity control function on the ocher board Can be given to an appropriate level and the weight of the flooring can be achieved.

In the mixture constituting the ocher board, when the perlite is included in the above range, it is possible to impart a good level of air permeability and adsorption of harmful gases to the ocher board.

In addition, the mixture may further comprise other functional materials or components, if necessary. Examples of such materials include purified wood vinegar and the like.

In the present invention, the ocher board used as the base layer is a lower layer part (4), a first glass wool mesh layer (5), a first middle layer portion (6), and a second glass wool mesh layer (7) sequentially stacked. The second middle layer 8, the third glass wool mesh layer 9 and the upper layer 11, the lower layer 4, the first middle layer 6, the second middle layer 8 and the upper layer 11. ) Preferably consist of the mixtures described above.

The first glass wool mesh layer 5, the second glass wool mesh layer 7, and the third glass wool mesh layer 9 may each be formed of one or more glass wool meshes. Thus, by forming the first glass wool mesh layer (5), the second glass wool mesh layer (7) and the third glass wool mesh layer (9) between the ocher-based layers, it is possible to increase the planarity and tensile strength of the board. In addition, by maintaining a good bending strength can improve the material stability of the board.

The thickness of each of the lower layer portion 4, the first middle layer portion 6, the second middle layer portion 8 and the upper layer portion 11 can be appropriately adjusted according to the specifications of the final product. For example, the thickness ratio of the lower layer part 4: the first middle layer part 6 and the second middle layer part: the upper layer part 11 is preferably about 1.0: 5.0: 1.0 to 2.0: 7.0: 3.0, and about 1: It is more preferable that it is 7: 1.5.

In the ocher flooring material 10 according to an embodiment of the present invention, the adhesive layer 2 has excellent adhesion efficiency for adhering the substrate layer 1 and the surface layer 3 including the ocher board, and has an inherent smell of the adhesive. From the aspect which neutralizes, it is preferable that it consists of a modified vinyl type adhesive agent to which the rosin-type natural substance was added.

What is necessary is just to form the thickness of the adhesive bond layer 2 to such an extent that the base material layer 1 and the surface layer 3 can be adhere | attached with sufficient adhesive force, for example, it can be formed in 0.1-1.0 mm range.

In the ocher flooring 10 according to an embodiment of the present invention, the surface layer 3 is at least one material selected from the group consisting of natural veneer, wood veneer, high pressure laminate (HPL) and low pressure laminate (LPL). It is preferable that it consists of.

For example, in the case of ondol flooring ocher flooring, the surface layer 3 may include natural veneer. In the case of reinforcement flooring ocher flooring, the surface layer 3 may be HPL (High Pressure Laminate) or LPL (Low). Pressure Laminate) may be included.

In addition, in one embodiment of the present invention, the ocher flooring material 10 is formed on the top or bottom of the base layer, solid wood, veneer, particle board, HPL (High Pressure Laminate), LPL (Low Pressure Laminate), MDF ( Optionally further include a dimensional reinforcement layer (not shown) consisting of one or more selected from the group consisting of Medium Density Fiberboard (HDF), High Density Fiberboard (HDF), Oriented Strand Board (OSB), and Flake Board. have.

In addition, in one embodiment of the present invention, the ocher flooring material 10 may further include a surface coating layer (not shown) made of a resin paint formed on the surface layer (3).

The resin coating forming the surface coating layer is preferably a solvent-free eco-friendly resin coating in terms of health functionality and eco-friendliness.

The surface coating layer can be formed by applying a resin coating on the surface layer 3 and then drying it. The application | recovery frequency | count of resin coating can be suitably selected according to a desired physical property, For example, it is preferable to apply | coat 3-4 times.

In addition, in one embodiment of the present invention, the ocher flooring 10 may further include a UV coating layer (not shown) made by curing the ultraviolet curable resin formed on the surface layer (3).

The UV coating layer formed in this way can strengthen the surface, thereby improving the durability of the flooring.

2 is a cross-sectional view of the ocher flooring material 20 according to another embodiment of the present invention.

Referring to FIG. 2, the ocher flooring material 20 includes a substrate layer 1; Adhesive layer 2; Surface layer 3; And a surface coating layer 12, wherein the base layer 1 includes a lower layer portion 4, a first glass wool mesh layer 5, a first middle layer portion 6, and a second glass wool mesh layer 7 sequentially stacked. ). And a loess board composed of the second middle layer 8, the third glass wool mesh layer 9 and the upper layer 11.

The surface layer 3 may include natural veneer. By appropriate use of various patterns of natural veneer, it is possible to meet consumer demand for external aesthetics.

The surface coating layer 12 may be formed by applying a resin paint on the surface layer 3 and then drying. It is preferable to use a non-solvent type eco-friendly resin paint as a resin paint, and the application | recovery frequency of resin paint can be selected suitably according to a desired physical property, For example, it is preferable to apply 3-4 times.

The ocher flooring 20 shown in FIG. 2 may be preferable as an ocher flooring for an ondol floor.

3 is a cross-sectional view of the ocher flooring 30 according to another embodiment of the present invention.

Referring to FIG. 3, the ocher flooring material 30 includes a substrate layer 1; Adhesive layer 2; Surface layer 3; And a UV coating layer 13, wherein the base layer 1 includes a lower layer portion 4, a first glass wool mesh layer 5, a first middle layer portion 6, and a second glass wool mesh layer 7 sequentially stacked. . And a loess board composed of the second middle layer 8, the third glass wool mesh layer 9 and the upper layer 11.

The surface layer 3 may include a High Pressure Laminate (HPL) layer including a pattern paper layer in which a patterned paper is impregnated with melamine resin. By using paper printed with patterns containing various kinds of natural wood patterns, it is possible to adequately meet consumer demands for external aesthetics.

The UV coating layer 13 may be formed by applying and curing an ultraviolet curable resin on the top surface layer 3, the UV coating layer formed in this way can enhance the surface, thereby improving the durability of the flooring.

The ocher flooring material 30 shown in FIG. 3 may be preferable as the ocher flooring material for the reinforced floor.

Ocher flooring according to an embodiment of the present invention, if necessary, in order to impart desired functionality, at least one layer of the base layer (1) or surface layer (3) antibacterial, insect repellent, silver, charcoal, germanium, jade and the like It may further comprise a functional material of.

Meanwhile, referring to FIG. 1, the ocher flooring material 10 according to an exemplary embodiment of the present invention may include a lower layer part, a first glass wool mesh layer, a first middle layer part, a second glass wool mesh layer, a second middle layer part, and a first stacked layer. Forming a base layer comprising an ocher board consisting of three glass wool mesh layers and an upper layer portion; Forming an adhesive layer (2) on the substrate layer (1); And forming a surface layer 3 on the adhesive layer 2.

Here, the step of forming the base layer (1) is by mixing one or more light materials selected from the group consisting of ocher, magnesium chloride aqueous solution, magnesium oxide, perlite, and wood flour, sawdust, corn crushed ground and chaff ground Forming a mixture; Forming an underlayer made of the mixture; Placing a glass wool mesh on the lower layer to form a first glass wool mesh layer; Curing the lower layer; Forming a first middle layer part of the mixture on the first glass wool mesh layer; Placing a glass wool mesh on the first middle layer to form a second glass wool mesh layer; Curing the first middle layer; Forming a second middle layer part of the mixture on the second glass wool mesh layer; Placing a glass wool mesh on the second middle layer to form a third glass wool mesh layer; Curing the second middle layer portion; Forming an upper layer part of the mixture on the third glass wool mesh layer; And curing the upper layer to form a board, followed by drying to form an ocher board. And polishing the upper surface of the molded ocher board.

The mixture forming step is a mixture of 100 parts by weight of magnesium chloride aqueous solution, 45 to 65 parts by weight of magnesium oxide, 5 to 25 parts by weight of ocher, 1 to 20 parts by weight of ferrite, and 1 to 20 parts by weight of light material to form a lower layer mixture. Forming a; With respect to 100 parts by weight of magnesium chloride aqueous solution, 80 to 100 parts by weight of magnesium oxide, 50 to 70 parts by weight of ocher, 20 to 40 parts by weight of perlite, and 20 to 40 parts by weight of lightweight material are mixed to form the first middle part and the second middle part. Forming a constituent mixture; And 55 to 75 parts by weight of magnesium oxide, 20 to 40 parts by weight of ocher, 1 to 20 parts by weight of ferrite, and 1 to 20 parts by weight of lightweight material, based on 100 parts by weight of magnesium chloride solution to form a mixture forming an upper layer. It is preferable to include.

The drying step may be made by drying the molded board at a temperature of 25 ~ 35 ℃ for 10-15 hours in a sealed space, and then air-dried for 45-50 hours.

The adhesive layer 2 may be formed by applying a modified vinyl-based adhesive to which the rosin-based natural material is added on the base layer 1.

What is necessary is just to form the thickness of the adhesive bond layer 2 so that the base material layer 1 and the surface layer 3 may be adhere | attached with sufficient adhesive force, for example, it can be formed in 0.1-1.0 mm range.

In addition, in one embodiment of the present invention, after the step of forming the surface layer (3), at a temperature of 6 ~ 25 ℃, performing a cold press process for 12 to 36 hours; Performing a thermopress press process at a temperature of 110 to 150 ° C. for 5 to 20 minutes; Performing a surface finish to smooth the surface; Cutting to a predetermined size; And it is preferable to further include the step of performing the groove and the projection process.

In the present invention, by including the ocher board excellent in deformation resistance as the base layer 1, the adhesion of the base layer 1 and the surface layer 3 through the adhesive layer 2 is primarily made by a cold press process Can be. Accordingly, it is possible to minimize the water inclination and the generation of stress that may occur in the bonding step. Therefore, in addition to the deformation resistance of the ocher board itself, due to the advantages in the manufacturing process it can further secure the dimensional stability and smoothness of the ocher flooring.

The groove and protrusion digging process forms grooves and protrusions for non-adhesive construction, and the size of the grooves and protrusions is about 1-10 mm, preferably 4-6 mm, particularly preferably about 5 mm. Can be.

The ocher flooring material according to the present invention includes an ocher board having excellent deformation resistance as the base layer 1, and thus can be constructed by non-adhesive use of the grooves and protrusions described above without using an adhesive when constructing the bottom surface. In addition, there is no deformation such as twisting or bending even after construction, and it is possible to prevent the occurrence of defects in the seam.

In addition, in one embodiment of the present invention, after the step of performing the groove and the projection process, washing the surface of the surface layer; And applying a resin paint on the surface of the surface layer, and drying to form a surface coating layer.

It is preferable to use a non-solvent type eco-friendly resin paint as the resin paint forming the surface coating layer. The application | recovery frequency | count of resin coating can be suitably selected according to a desired physical property, For example, it is preferable to apply | coat 3-4 times.

Further, in another embodiment of the present invention, after performing the groove and the projection process, the step of washing the surface of the surface layer; And after applying an ultraviolet curable resin to the surface of the surface layer, curing may further include forming a UV coating layer.

EMBODIMENT OF THE INVENTION Hereinafter, although this invention is demonstrated in detail using an Example and a comparative example, this invention is not limited to these.

Example  1: ocher board manufacturer

Magnesium chloride and purified water were mixed at a weight ratio of 1: 1 to prepare an aqueous magnesium chloride solution, and then a curing agent was added.

With respect to 100 parts by weight of magnesium chloride aqueous solution, 54 parts by weight of magnesium oxide, 15 parts by weight of ocher, 8 parts by weight of perlite, and 8 parts by weight of lightweight material were uniformly mixed to form a mixture forming the lower layer.

90 parts by weight of magnesium oxide, 63 parts by weight of ocher, 38 parts by weight of perlite, and 38 parts by weight of lightweight material were uniformly mixed with respect to 100 parts by weight of magnesium chloride aqueous solution to form a mixture forming the first middle part and the second middle part.

With respect to 100 parts by weight of the magnesium chloride aqueous solution, 64 parts by weight of magnesium oxide, 27 parts by weight of ocher, 9 parts by weight of perlite, and 9 parts by weight of lightweight material were mixed uniformly to form a mixture forming the upper layer part.

The lower layer part was formed to a thickness of about 1 mm by injecting and dispersing the mixture forming the lower layer part in the manufacturing frame for board manufacturing, and then, the glass wool mesh was positioned flat on the lower layer part to form a first glass wool mesh layer. Thereafter, the lower layer part was cured, and the first middle layer part was formed to a thickness of about 3.5 mm by injecting and dispersing the mixture forming the first middle layer part on the first glass wool mesh layer. The glass wool mesh was flatly positioned on the first middle layer to form a second glass wool mesh layer. Thereafter, the first middle layer part was cured, and the second middle layer part was formed to a thickness of about 3.5 mm by injecting and dispersing the mixture forming the second middle layer part on the second glass wool mesh layer. Thereafter, the glass wool mesh was flatly positioned on the second middle layer to form a third glass wool mesh layer. Thereafter, the second middle layer part was cured, and the upper layer part was formed to a thickness of about 1.5 mm by injecting and dispersing the mixture forming the upper layer part on the third glass wool mesh layer. After the upper layer was cured and molded into a board, the molded board was dried at a temperature of 30 ° C. for 15 hours in an airtight space, and then air dried for 50 hours to prepare an ocher board. Thereafter, the surface of the upper layer of the ocher board was polished to adjust the thickness to about 9 mm so that the adhesive layer was well formed.

Example  2: ocher flooring manufacturing (1)

The ocher board prepared in Example 1 was used as a base layer, and an adhesive layer was formed by applying an adhesive to which a rosin-based natural material was added to a modified vinyl adhesive. After forming a natural veneer layer on the adhesive layer, the adhesive was carried out by performing a cold press process for 24 hours at a temperature of 20 ℃, and then performing a hot press process for 10 minutes at a temperature of 110 ℃ or more. Thereafter, the surface was subjected to surface smoothing, and then cut to a predetermined size, and groove and protrusion digging was performed. Next, after washing the surface, a resin coating was applied to the surface of the natural veneer layer 3 to 4 times, and dried to prepare an ocher flooring material for ondol flooring.

Example  3: ocher flooring manufacturing (2)

The ocher board prepared in Example 1 was used as a base layer, and an adhesive layer was formed by applying an adhesive to which a rosin-based natural material was added to a modified vinyl adhesive. After forming a HPL (High Pressure Laminate) layer containing a pattern paper layer impregnated with melamine resin on the adhesive layer printed paper, and then bonded by performing a cold press process for 24 hours at a temperature of 20 ℃ , The heat press process was carried out for 10 minutes at a temperature of 110 ℃ or more. Thereafter, the surface was subjected to surface smoothing, and then cut to a predetermined size, and groove and protrusion digging was performed. Next, after washing the surface, the UV curable resin was applied and cured to form a UV resin layer was prepared ocher flooring for the reinforced floor.

1 is a cross-sectional view of the ocher flooring according to an embodiment of the present invention.

Figure 2 is a cross-sectional view of the ocher flooring according to another embodiment of the present invention.

Figure 3 is a cross-sectional view of the ocher flooring according to another embodiment of the present invention.

Claims (17)

A base layer; Adhesive layer; And Including a surface layer, The base layer is It comprises an ocher board consisting of a lower layer portion, a first glass wool mesh layer, a first middle layer portion, a second glass wool mesh layer, a second middle layer portion, a third glass wool mesh layer and an upper layer portion sequentially stacked, The lower layer, the middle layer and the upper layer are each composed of a mixture comprising ocher, magnesium chloride aqueous solution, magnesium oxide, perlite, and at least one light material selected from the group consisting of wood flour, sawdust, corn crushed ground and chaff ground. Ocher flooring. The method of claim 1, The lower layer part is made of a mixture of 45 to 65 parts by weight of magnesium oxide, 5 to 25 parts by weight of ocher, 1 to 20 parts by weight of perlite, and 1 to 20 parts by weight of lightweight material, based on 100 parts by weight of magnesium chloride solution, The first middle layer and the second middle layer are 80 to 100 parts by weight of magnesium oxide, 50 to 70 parts by weight of ocher, 20 to 40 parts by weight of perlite, and 20 to 40 parts by weight of light material based on 100 parts by weight of magnesium chloride solution. Consisting of mixtures, The upper layer is made of a mixture of 55 to 75 parts by weight of magnesium oxide, 20 to 40 parts by weight of ocher, 1 to 20 parts by weight of perlite, and 1 to 20 parts by weight of lightweight material, based on 100 parts by weight of magnesium chloride solution. Ocher flooring. The method of claim 1, The surface layer is made of at least one material selected from the group consisting of natural veneer, wood veneer, HPL (High Pressure Laminate) and LPL (Low Pressure Laminate) Ocher flooring. The method of claim 1, The adhesive layer is made of a modified vinyl-based adhesive to which a rosin-based natural material is added Ocher flooring. The method of claim 1, The magnesium chloride aqueous solution is a weight ratio of water and magnesium chloride 1: 1: 0.5 to 1: 1.5 Ocher flooring. The method of claim 5, The magnesium chloride aqueous solution further includes at least one material selected from the group consisting of a curing agent, an antifoaming agent, a liquid silicic acid agent, and a high strength reinforcing agent. Ocher flooring. The method of claim 1, The ocher flooring material further comprises a UV coating layer made by curing a surface coating layer or an ultraviolet curable resin made of a resin coating formed on the surface layer. Ocher flooring. The method of claim 1, The ocher flooring material is an ocher flooring material for ondol flooring, further comprising a surface coating layer made of a resin coating formed on the surface layer, wherein the surface layer comprises a natural veneer layer Ocher flooring. The method of claim 1, The ocher flooring is an ocher flooring for reinforcement flooring, and further includes a UV coating layer formed by curing an ultraviolet curable resin formed on the surface layer, wherein the surface layer includes a patterned layer of a pattern-printed paper impregnated with melamine resin. (High Pressure Laminate) layer Ocher flooring. Forming a base layer including an ocher board including a lower layer part, a first glass wool mesh layer, a first middle layer part, a second glass wool mesh layer, a second middle layer part, a third glass wool mesh layer, and an upper layer part sequentially stacked; Forming an adhesive layer on the substrate layer; And Forming a surface layer on the adhesive layer; Forming the substrate layer Admixing one or more lightweight materials selected from the group consisting of ocher, aqueous magnesium chloride solution, magnesium oxide, perlite, and wood flour, sawdust, corn grinds and chaff grounds to form a mixture; Forming an underlayer made of the mixture; Placing a glass wool mesh on the lower layer to form a first glass wool mesh layer; Curing the lower layer; Forming a first middle layer part of the mixture on the first glass wool mesh layer; Placing a glass wool mesh on the first middle layer to form a second glass wool mesh layer; Curing the first middle layer; Forming a second middle layer part of the mixture on the second glass wool mesh layer; Placing a glass wool mesh on the second middle layer to form a third glass wool mesh layer; Curing the second middle layer portion; Forming an upper layer part of the mixture on the third glass wool mesh layer; And Curing the upper layer to form a board, and then drying to form an ocher board; And Polishing an upper surface of the molded ocher board; Process for preparing ocher flooring. The method of claim 10, The mixture forming step A mixture of 45 to 65 parts by weight of magnesium oxide, 5 to 25 parts by weight of ocher, 1 to 20 parts by weight of perlite, and 1 to 20 parts by weight of lightweight material, to form a mixture forming a lower layer with respect to 100 parts by weight of magnesium chloride solution; With respect to 100 parts by weight of magnesium chloride aqueous solution, 80 to 100 parts by weight of magnesium oxide, 50 to 70 parts by weight of ocher, 20 to 40 parts by weight of perlite, and 20 to 40 parts by weight of lightweight material are mixed to form the first middle part and the second middle part. Forming a constituent mixture; And Forming a mixture forming an upper layer by mixing 55 to 75 parts by weight of magnesium oxide, 20 to 40 parts by weight of ocher, 1 to 20 parts by weight of perlite, and 1 to 20 parts by weight of lightweight material, based on 100 parts by weight of magnesium chloride solution. Containing Process for preparing ocher flooring. The method of claim 10, After forming the surface layer, Performing a cold press process at a temperature of 6 to 25 ° C. for 12 to 36 hours; Performing a thermopress press process at a temperature of 110 to 150 ° C. for 5 to 20 minutes; Performing a surface finish to smooth the surface; Cutting to a predetermined size; And Further comprising the step of performing groove and protrusion digging processing Process for preparing ocher flooring. The method of claim 12, After the step of performing the groove and the projection process, Washing the surface of the surface layer; And Applying a resin coating on the surface of the surface layer, and drying to form a surface coating layer Process for preparing ocher flooring. The method of claim 12, After the step of performing the groove and the projection process, Washing the surface of the surface layer; And After applying the ultraviolet curable resin on the surface of the surface layer, and further curing to form a UV coating layer Process for preparing ocher flooring. The method of claim 10, The drying step is made by drying the molded board at a temperature of 25 ~ 35 ℃ for 10-15 hours in a closed space, and then air-dried for 45-50 hours Process for preparing ocher flooring. The method of claim 10, The magnesium chloride aqueous solution is a weight ratio of water and magnesium chloride 1: 1: 0.5 to 1: 1.5 Process for preparing ocher flooring. The method of claim 16, The magnesium chloride aqueous solution further includes at least one material selected from the group consisting of a curing agent, an antifoaming agent, a liquid silicic acid agent, and a high strength reinforcing agent. Process for preparing ocher flooring.

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