WO2009157597A1

WO2009157597A1 - An assembly type panel for floor and a manufacturing method

Info

Publication number: WO2009157597A1
Application number: PCT/KR2008/003609
Authority: WO
Inventors: Kwang Chae Ko; Seung Ja Kim
Original assignee: Kwang Chae Ko; Seung Ja Kim
Priority date: 2008-06-24
Filing date: 2008-06-24
Publication date: 2009-12-30
Also published as: KR101062634B1; KR20100000180A

Abstract

A prefabricated floor panel and a method of manufacturing the same are provided. The floor panel is formed in a block unit so as to permit selective adjustment depending on the installation environment, and is configured to form each block as a standard unit for the purposes of mass production and standardization and to cut and use each block in a unit smaller than the standard unit as needed. The floor panel is manufactured by an injection molding process using a synthetic resin such as nylon as a main material in place of a cutting process used for timber or marble, and additionally mixing tourmaline and zeolite, thereby emitting far infrared radiation and anions. A joining ridge and groove are formed and coupled to each other along an outer circumference of the prefabricated floor panel, so that numerous blocks are connected in a desired direction.

Description

AN ASSEMBLY TYPE PANEL FOR FLOOR AND A MANUFACTURING METHOD

Technical Field

[1] The present invention relates, in general, to a prefabricated floor panel emitting far infrared radiation and a method of manufacturing the same, and more particularly, to a prefabricated floor panel that is formed in a block unit so as to permit selective adjustment and easy construction depending on the floor area, standardizes each block in a standard unit to make mass production possible, and cuts and uses individual blocks as needed, thereby actively coping with different installation environments.

[2] The present invention also relates to a prefabricated floor panel that is manufactured by an injection molding process using a synthetic resin such as nylon, to which tourmaline and zeolite are further added, as a raw material in place of a mechanical working process used for timber or marble, thereby having an effect of emitting far infrared radiation and anions.

[3] Further, the present invention relates to a prefabricated floor panel, along an outer circumference of which a joining ridge and groove are formed and coupled to each other, thereby connecting a plurality of blocks in a desired direction.

[4] Also, the present invention relates to a prefabricated floor panel, that is divided into upper and lower planar plates so as to be easily formed, particularly wherein the lower plate is provided with upper and lower joining grooves as in the upper plate and a stepped face on an outer circumference thereof so as to independently form a joining ridge.

[5] Furthermore, the present invention relates to a prefabricated floor panel, in which a slot type fastening groove is formed in the bottom surface of an upper plate, and a fastening rib is formed on the top surface of a lower plate, so that the upper and lower plates are assembled up and down.

[6] In addition, the present invention relates to a prefabricated floor panel, in which a fastening rib is inserted into a fastening groove, and is fused in the fastening groove by an ultrasonic vibrational fusion process, so that the fastening rib is closely coupled to the fastening groove. Background Art

[7] In general, typical flooring used for floors of the main rooms of houses which are lived in, exhibition halls, or performance places includes stone flooring such as marble, vinyl flooring, log flooring, and flooring made by adhering a wood sheet to a veneer board, and is increasingly used. [8] Among them, stone flooring such as marble is not suitable for the Korean practice of sitting on the floor and talking to each other which people have become accustomed to. Furthermore, stone flooring such as marble is not suitable for residences, and thus is limited to show rooms or lobbies. Vinyl flooring may cause a problem when used if it contains components harmful to the human body, and hygienic problems in summer when moisture is not absorbed and becomes sticky or gives out a bad smell.

[9] In order to overcome these drawbacks, log flooring made of genuine wood is used, but it is very vulnerable to moisture, and thus is subjected to flexure or twist when it is exposed to the moisture. Further, log flooring has a safety problem because the woody grain becomes separated and damages stockings and socks and, what is worse, causes splinters in the soles of feet. Moreover, since log flooring is made of genuine wood, the cost of materials or processing cannot be other than considerably increased. In addition, it is impossible to avoid damaging natural mountains and forests in order to obtain good quality of material.

[10] Meanwhile, flooring made by adhering the wood sheet to the veneer board is used.

To this end, the flooring is made by pre-cutting the wood sheet to a predetermined flooring standard, adhering the wood sheet so as to fit it to a short length of the veneer board, cutting the veneer board in the predetermined flooring standard, and applying a finish on the cut veneer board to a medium or high thickness.

[11] However, when the pre-cut wood sheet is disposed and adhered in a lengthwise direction of the veneer board, the adhesion requires much time and expense. Further, even when the pre-cut wood sheet slightly deviates from the X and Y axes during the adhesive process, the veneer board is cut out of line with the adhered wood sheet, so that the cut veneer board is partially exposed, resulting in the beauty being detracted from.

Disclosure of Invention

Technical Problem

[12] Accordingly, the present invention has been devised to solve the problems occurring in the related art, and an object of the present invention is to provide a prefabricated floor panel and a method of manufacturing the same, in which the floor panel is prevented from flexing or twisting despite changes in humidity or temperature.

[13] Another object of the present invention is to provide a prefabricated floor panel and a method of manufacturing the same, in which the floor panel is safe from surface scratches and surface floating, and is prevented from cracks despite an external shock.

[14] Another object of the present invention is to provide a prefabricated floor panel and a method of manufacturing the same, in which the floor panel interrupts electromagnetic waves and generates far infrared radiation and anions. Technical Solution

[15] In order to achieve the above object, according to one aspect of the present invention, there is provided a prefabricated floor panel, which is installed on a floor and is formed in block units so as to be selectively arranged depending on the floor area. The block is injection-molded using a synthetic resin as a raw material.

[16] In the example embodiments, the block may include a joining ridge and a joining groove symmetrically formed along an outer circumference thereof, and may be connected or disconnected to or from a neighboring block by coupling of a neighboring groove and ridge. Here, the block may have a width ranging from 90 mm to 100 mm and a length ranging from 600 mm to 800 mm.

[17] In the example embodiments, the floor panel may be divided and formed into an upper plate and a lower plate. The upper plate may be a rectangular flat plate, and the lower plate may be a rectangular flat plate corresponding to the upper plate and having a stepped face on an outer circumference thereof in order to form the joining groove along with the upper plate or to independently form the joining ridge.

[18] In the example embodiments, the upper and lower plates may include fasteners on bottom and top surfaces thereof respectively in order to assemble the upper and lower plates, and the fasteners may function as a slot- shaped fastening groove and a fastening rib press-fitted into the fastening groove, respectively. The press-fitting may be carried out by an ultrasonic vibrational fusion process that causes the fastening rib to be fused in the fastening groove by the vibrations. The fastening rib may have a width smaller than that of the fastening groove, and a height greater than that of the fastening groove, so that the fastening rib can be easily press-fitted into the fastening groove and receive an expansive force while being expanded in lateral directions while undergoing press- fitting.

[19] In the example embodiments, the bottom surface of the lower plate may further include hexahedral damping recesses, each of which uniformly conserves heat by temporarily storing part of heat transferred from bottom to top, reduces noise and vibration between the neighboring floors, and keeps the lower plate flat on the uneven floor.

[20] In the example embodiments, the lower plate may further include transverse cutting grooves formed at an interval from 45 mm to 55 mm in a longitudinal direction in order to divide the block unit into sub-block units.

[21] In example embodiments, the floor panel may use a nylon resin as a main raw material, and may be additionally mixed with tourmaline emitting far infrared radiation, wherein a relative composition of tourmaline ranges from 6% to 10% when a sum of nylon and tourmaline composites is set to 100%.

[22] In the example embodiments, the floor panel may use a nylon resin as a main raw material, and may be additionally mixed with tourmaline emitting far infrared radiation and zeolite emitting anions, and a relative composition of zeolite ranges from 1% to 3% when a sum of nylon, tourmaline and zeolite composites is set to 100%.

[23] In the example embodiments, the floor panel may further include a heating electric film thereunder, and the electric film may include a plane heater in which carbon heaters are connected in parallel to a thin film.

[24] According to another aspect of the present invention, there is provided a method of manufacturing a prefabricated floor panel, in which the floor panel is formed and assembled in block units. The method includes preparing a tourmaline mineral and a zeolite mineral, pulverizing the tourmaline and zeolite minerals into micro particles, preparing a nylon resin in a powder state and mixing the powder of the nylon resin with the tourmaline and zeolite powder, forming the mixed powder into a briquette and drying the briquette, heating the briquette at a temperature of 12O⁰C or more to injection-mold the floor panel, and boiling the injection-molded floor panel in water having a temperature of 100⁰C or more for 50 to 120 minutes.

Advantageous Effects

[25] As described above, according to the configuration of the present invention, the following effects can be expected.

[26] First, the floor panel is injection-molded using a synthetic resin as a main material, and then is boiled in water of 100⁰C or more for a long time, so that the floor panel can be prevented from flexing or twisting despite a change in humidity or temperature. Particularly, the floor panel is boiled in boiling water for at least 50 minutes, so that the floor panel has a durable texture and strong durability so to be resistant to forming cracks even when an external shock is applied.

[27] Second, the floor panel is divided and formed into upper and lower plates, so that a joint is smoothly formed on the upper and lower plates. A fastening rib is bonded to a fastening groove by vibrational fusion, so that the floor panel can obtain the same effect as an integrally formed panel.

[28] Third, since tourmaline and zeolite are mixed with nylon, various viruses and inflammation of the skin are prevented by the energy of the far infrared radiation emitted from the tourmaline. The far infrared radiation continues to deeply penetrate into cells by a synergy effect of zeolite, so that damaged skin can be regenerated. Brief Description of Drawings

[29] FIG. 1 is a top perspective view illustrating the configuration of a prefabricated floor panel according to an example embodiment of the present invention.

[30] FIG. 2 is a bottom perspective view illustrating the configuration of a prefabricated floor panel according to an example embodiment of the present invention. [31] FIG. 3 is an exploded perspective view illustrating the configuration of a prefabricated floor panel according to an example embodiment of the present invention.

[32] FIG. 4 is a top plan view illustrating the configuration of an upper plate according to an example embodiment of the present invention.

[33] FIG. 5 is a rear view illustrating the configuration of an upper plate according to an example embodiment of the present invention.

[34] FIG. 6 is a side view illustrating the configuration of an upper plate according to an example embodiment of the present invention.

[35] FIG. 7 is a top plan view illustrating the configuration of a lower plate according to an example embodiment of the present invention.

[36] FIG. 8 is a rear view illustrating the configuration of a lower plate according to an example embodiment of the present invention.

[37] FIG. 9 is a side view illustrating the configuration of a lower plate according to an example embodiment of the present invention.

[38] FIG. 10 is a side view illustrating the configuration of a cutting groove according to an example embodiment of the present invention.

[39] FIG. 11 is a side view illustrating the configuration of fasteners according to an example embodiment of the present invention.

[40] FIG. 12 illustrates the state in which blocks are connected in combination with a heating apparatus in accordance with an example embodiment of the present invention.

[41] FIG. 13 is a flowchart illustrating a method of manufacturing a prefabricated floor panel according to an example embodiment of the present invention.

[42] <Description of symbols of the main parts in the drawings>

[43] 100: floor panel 102: joining ridge

[44] 104: joining groove 110: upper plate

[45] 112: fastening rib 120: lower plate

[46] 122: fastening groove 130: damping recess

[47] 140: cutting groove 150: heating apparatus

Best Mode for Carrying out the Invention

[48] Reference will now be made in greater detail to a prefabricated floor panel according to example embodiments of the present invention with reference to the accompanying drawings.

[49] As illustrated in FIGS. 1, 2 and 3, the prefabricated floor panel 100 according to an example embodiment is formed in block units of a minimum standard so as to be able to be selectively arranged according to the installation environment, and includes a joint on an outer circumference which enables the blocks to be connected to and disconnected from each other. [50] The joint is provided to the outer circumference of a plate, and includes a joining ridge 102 and a joining groove 104 symmetrically formed along the outer circumference of the plate. As illustrated in FIG. 12, the joining ridge 102 is inserted into its neighboring joining groove 104, so that the blocks are connected in a desired direction. The joining ridge 102 is rounded so as to be easily inserted into the joining groove 104. The connection of the joining ridge and groove is not limited to a male- female connection.

[51] The floor panel 100 is formed such that a longitudinal dimension (i.e. a length) thereof is greater than a transverse dimension (i.e. a width) thereof so as to create the impression of being log flooring, and particularly is formed to have a length ranging from 600 mm to 800 mm and a width ranging from 90 mm to 100 mm in consideration of constructability and aesthetics. Further, thickness of the floor panel may range from about 7 mm to about 9 mm. However, the floor panel is not limited to these ranges, and so may be formed in various sizes. For example, the floor panel may be formed to have the width of 200 mm and the length of 500 mm. Furthermore, the floor panel may be formed such that the length and width have the same dimension of 300 mm so as to create the impression of marble flooring. In the case of the floor panel being used in combination with the electric film that will be described below, the floor panel may be standardized such that the length and width have a dimension of 1000 mm.

[52] The floor panel 100 is formed by an injection molding process using a mixture of a synthetic resin with other materials rather than the mechanical working process used for wood or marble. However, if the joining groove is excessively recessed inwards, the injection molding process may make it difficult to form the joining groove, resulting in a failure of the joining groove. Since the joining ridge has numerous boundaries, the injected boundaries do not become smooth.

[53] Thus, for easy machining of injection molds, the floor panel 100 is divided and formed into an upper plate 110 and a lower plate 120, and then the upper and lower plates are assembled. In this manner, when the floor panel is formed into the upper and lower plates, the upper and lower plates may be made of different materials, strengths, or designs as needed. Further, while being used, the upper plate is mainly damaged, so that only the upper plate can be replaced.

[54] As illustrated in FIGS. 4, 5 and 6, the upper plate 110 is a rectangular flat plate, and may be covered thereon with a wood sheet or paint in order to enhance the beauty.

[55] As illustrated in FIGS. 7, 8 and 9, the lower plate 120 is formed of a substantially flat plate like the upper plate 110. However, the lower plate 120 further includes a stepped face for the joint on an outer circumference thereof, and damping recesses 130 having various functions in a bottom surface thereof.

[56] Each damping recess 130 has a cylindrical or hexahedral shape that opens in a downward direction. Since the hexahedral recess has a higher bearing force against a load applied from top to bottom and higher durability than the cylindrical recess, the damping recess may be more preferably formed in the hexahedral shape. Further, a recess shaped of a triangular prism may be formed, but this provides lower spatial efficiency than the hexahedral recess. The damping recesses 130 have the following functions.

[57] First, when applied to a heating floor system, the floor panel may be used in combination with a heating apparatus, and functions to uniformly conserve heat by temporarily storing part of the heat transferred from bottom to top. Second, when applied to multi-family housing such as an apartment, the floor panel 130 is required to interrupt noise between neighboring floors and reduce the shock transferred from the upper floor to the lower floor, and thus functions to reduce the noise and vibration between the neighboring floors. Third, the floor panel is typically placed on a floor slab. Since the floor slab is not a final finishing material, the floor slab is rough and has numerous convexities and concavities. As such, when placed on the floor slab, the floor panel 130 is difficult to keep flat, and thus functions to be kept flat on the uneven floor.

[58] Meanwhile, the lower plate 120 further includes cutting grooves 140 in addition to the damping recesses 130. Because the floor panel is mass-produced in block units having a predetermined size, the floor panel is required to cut a part of the block when the block does not meet installation requirements, as illustrated in FIG. 10. To this end, the cutting grooves are formed at an interval from 45 mm to 55 mm. A depth of each cutting groove properly ranges from 3 mm to 4 mm.

[59] A bottom surface of the upper plate 110 and a top surface of the lower plate 120 are provided with fasteners. In detail, the top surface of the lower plate 120 includes a plurality of fastening grooves 122 at regular intervals, whereas the bottom surface of the upper plate 110 includes a plurality of fastener ribs 112 inserted into the fastening grooves.

[60] According to an example embodiment of the present invention, the upper plate is coupled to the lower plate by vibrational fusion rather than an adhesive. For this reason, the fastening ribs 112 should not be separated from the fastening grooves 122 after being inserted into the fastening grooves 122. To this end, as illustrated in FIG. 1 l(a), the fastening rib 112 has a width smaller than that of the fastening groove 122, and a height greater than that of the fastening groove 122. As illustrated in FIG. 1 l(b), the fastening rib 112 is press-fitted into the fastening groove 122, and simultaneously is expanded in the lateral directions. Thereby, the fastening rib 112 is closely coupled to the fastening groove 122 using an intrinsic elastic property or expansive force thereof. [61] When performed in this manner, a method used to closely fix the fastening ribs 112 to the fastening grooves 122 in a press-fitted state may be the vibrational fusion method. The vibrational fusion method is adapted to fuse and bond a certain material to a base material without using another material, and is preformed by an ultrasonic vibration welder. When generated by the vibration welder, vibration is repeated 400,000 times or more for 0.1 or 1 sec. Thus, the vibrations fuse and bond the fastening rib 112 in the fastening groove 122.

[62] The floor panel 100 is configured so that the upper and lower plates are formed of the same material, and a nylon resin is used as the main raw material so as to reinforce functionality of interrupt electromagnetic waves and emit far infrared radiation and anions. Here, in addition to the nylon resin, tourmaline and zeolite are additionally mixed in predetermined fractions.

[63] Due to an electrical property that generates electricity, tourmaline has a surface- active effect of anions which doubles as the temperature becomes higher. Further, such a property is not deformed in a fine powder state, and each powder particle produces the electric property, so that tourmaline emits the far infrared radiation and anions using body temperature.

[64] Due to numerous nano-scale fine pores, zeolite is constructed so that the fine pores are typically filled with water molecules, and the filled water molecules are evaporated to generate steam when heat is applied to a predetermined degree. Particularly, owing to an excellent adsorptive power and chemical cation substitution reaction, zeolite adsorbs and stores other materials such as gases excluding moisture, and then gradually discharges the stored materials. Because of this unique property, zeolite generates and radiates a large quantity of anions, and rapidly supplies fresh oxygen to skin cells.

[65] According to an example embodiment of the present invention, a relative composition of nylon, tourmaline, and zeolite is determined as 88% to 92% nylon, 6% to 10% tourmaline, and 1% to 3% zeolite provided that the sum of the three composites is 100%.

[66] When the composition of tourmaline exceeds 10%, tourmaline increases reactivity with a human body, and thus a degree of healing reaction becomes stronger. When the composition of tourmaline exceeds 20%, tourmaline sharply reacts with the human body, and thus red or scratchy skin is abruptly caused as part of the body's natural healing reaction. On the contrary, when the composition of tourmaline is less than 6%, tourmaline has only a slight effect, and thus does not properly solicit a reaction effective on the human body.

[67] When the composition of zeolite exceeds 3%, zeolite greatly stimulates movement of tourmaline to cause the queen bee effect. Particularly, when the composition of zeolite exceeds 5%, zeolite sharply stimulates the movement of tourmaline to cause a great queen bee effect. On the contrary, when the composition of zeolite is less than 1%, zeolite is short of an effect of stimulating tourmaline.

[68] As illustrated in FIG. 12, according to another example embodiment of the present invention, the floor panel further includes a heating apparatus 150, and thus may be used in combination with the heating apparatus. The heating apparatus 150 employs an electric film or a plane heater. A heat isolator is further installed under the heating apparatus.

[69] The electric film is a far infrared plane heater that covers a thin film with carbon heaters, connects the heaters in parallel, applies a thin layer of active carbon as a contaminant adsorbent, forms electrodes using a copper film, and laminates a film. Unlike typical heaters, the electric film radiates heat uniformly over the whole, and provides warm radiant heat as in natural light due to a far infrared radiating effect. Further, the electric film uses a polyethylene terephthalate (PET) material or a special fabric as a sheathing material, and undergoes special waterproofing so as not to be in contact with air. As such, the electric film is slightly less satisfactory than a semi-permanent floor heater. The electric film is easily damaged when exposed to a local load or comes into contact with a sharp portion. For this reason, the electric film is used in combination with the plate-like floor panel as in the present invention, so that the aforementioned problem does not occur.

[70] Hereinafter, a method of manufacturing the floor panel having the configuration as described above will be described in detail with reference to FIG. 13.

[71] First, a tourmaline mineral having a purity of 99% or more and a zeolite mineral that can discharge at least 2000 anions per 1 cc are prepared, and then are pulverized into micro particles. Powdered nylon resin is also prepared, and is mixed with the previously prepared tourmaline and zeolite powders. In this manner, the primarily mixed powder is processed into a briquette having dimensions easy to injection-mold. A raw material processed in the briquette unit is sufficiently dried. Finally, the dried briquette raw material is heated to a temperature of 12O⁰C, and is injection-molded into upper and lower plates.

[72] Meanwhile, each of the molded plates is boiled at a temperature of 100⁰C or more for the reason that if it is not boiled, the plate has excessively enhanced elasticity due to a property of the nylon material. Thus, when dropped on the floor or as a result of receiving a shock, the plate becomes brittle. This results from a weak durability of products. However, when the plate is boiled in water, the nylon material shows as if an arrowroot texture and is tangled and twisted, so that the durability of the plate is enhanced, and thus elasticity of the plate is increased along with strength thereof.

[73] At this time, the plate is kept in water of 100⁰C or more for 50 to 120 minutes. If the plate is kept for 40 minutes or less in the water, the strength is high but the durability is reduced and it becomes brittle; if the plate is kept in the water for 150 minutes or more, the tourmaline and zeolite components contained for the injection molding are decomposed by water, and thus are discharged into the water, particularly in the case of zeolite is excessively discharged into the water. Therefore, it should be noted that the plate is not boiled beyond the reference value.

[74] When the molding and boiling of the plates are completed, the upper and lower plates are aligned in position, and are press-fitted using a vibration welder. The fastening ribs of the upper plate is fused and closely bonded in the fastening grooves of the lower plate. The floor panels of a block unit composed of the bonded upper and lower plates are connected in a transverse or longitudinal direction using the joining ridge and groove when used.

[75] As described above, the floor panel is injection-molded using nylon as a main composite in order to prevent flexure and twist frequently generated depending on changes in humidity and temperature and to enhance durability, and is boiled in water for 50 minutes. In order to generate far infrared radiation, tourmaline and zeolite are additionally mixed with the nylon. Thus, it should be understood that this configuration is adopted as a technical idea. It is apparent to those skilled in the art that many other deformations are possible within the scope of the fundamental technical idea of the present invention.

Claims

[1] A prefabricated floor panel installed on a floor, and formed in a block unit so as to be selectively arranged depending on floor area, the block being injection- molded using a synthetic resin as a raw material.

[2] The prefabricated floor panel as set forth in claim 1, wherein the block unit includes a joining ridge and a joining groove symmetrically formed along an outer circumference thereof, and is connected to or disconnected from a neighboring block unit by coupling of a neighboring groove and ridge.

[3] The prefabricated floor panel as set forth in claim 1, wherein the block unit has a width ranging from 90 mm to 100 mm and a length ranging from 600 mm to 800 mm.

[4] The prefabricated floor panel as set forth in claim 2, wherein: the floor panel is divided and formed into an upper plate and a lower plate; the upper plate is a rectangular flat plate; and the lower plate is a rectangular flat plate corresponding to the upper plate and having a stepped face on an outer circumference thereof in order to form the joining groove along with the upper plate or to independently form the joining ridge.

[5] The prefabricated floor panel as set forth in claim 4, wherein: the upper and lower plates include fasteners on the bottom and top surfaces thereof respectively in order to assemble the upper and lower plates; and the fasteners function as a slot-shaped fastening groove and a fastening rib press- fitted into the fastening groove, respectively.

[6] The prefabricated floor panel as set forth in claim 5, wherein the press-fitting is carried out by an ultrasonic vibrational fusion process that causes the fastening rib to be fused in the fastening groove by vibration.

[7] The prefabricated floor panel as set forth in claim 6, wherein the fastening rib has a width smaller than that of the fastening groove, and a height greater than that of the fastening groove, so that the fastening rib is easily press-fitted into the fastening groove and receives an expansive force while being expanded in lateral directions while being press-fitted.

[8] The prefabricated floor panel as set forth in claim 5, wherein the bottom surface of the lower plate further includes damping recesses, each of which uniformly conserves heat by temporarily storing part of heat transferred from bottom to top, reduces noise and vibration between neighboring floors, and keeps the lower plate flat on the uneven floor.

[9] The prefabricated floor panel as set forth in claim 8, wherein each damping recess has a shape of a hexahedron, a lower portion of which is open. [10] The prefabricated floor panel as set forth in claim 5, wherein the lower plate further includes transverse cutting grooves formed at an interval from 45 mm to

55 mm in a longitudinal direction in order to divide the block unit into sub-block units. [11] The prefabricated floor panel as set forth in claim 1, wherein the floor panel uses a nylon resin as a main raw material, and is additionally mixed with tourmaline emitting far infrared radiation, and a relative composition of tourmaline ranges from 6% to 10% when a sum of nylon and tourmaline composites is set to 100%. [12] The prefabricated floor panel as set forth in claim 1, wherein the floor panel uses a nylon resin as a main raw material, and is additionally mixed with tourmaline emitting far infrared radiation and zeolite emitting anions, and a relative composition of zeolite ranges from 1% to 3% when a sum of nylon, tourmaline and zeolite composites is set to 100%. [13] The prefabricated floor panel as set forth in claim 11 or 12, wherein the floor panel further includes a heating electric film thereunder. [14] The prefabricated floor panel as set forth in claim 13, wherein the electric film includes a plane heater in which carbon heaters are connected in parallel to a thin film. [15] The prefabricated floor panel as set forth in any one of claims 1 through 14, wherein the floor panel is boiled in water having a temperature of 100⁰C or more for 50 to 120 minutes after being formed. [16] A method of manufacturing a prefabricated floor panel, in which the floor panel is formed and assembled in block units, the method comprising: preparing a tourmaline mineral and a zeolite mineral; pulverizing the tourmaline and zeolite minerals into micro particles; preparing a nylon resin in a powder state and mixing the powder of the nylon resin with tourmaline and zeolite powder; forming the mixed powder into a briquette and drying the briquette; and heating the briquette at a temperature of 12O⁰C or more to injection-mold the floor panel. [17] The prefabricated floor panel as set forth in claim 16, further comprising boiling the injection-molded floor panel in water having a temperature of 100⁰C or more for 50 to 120 minutes.