KR101166888B1 - Fiber board and manufacturing method thereof - Google Patents

Abstract

PURPOSE: Fiber plywood having improved water proofing function, and a manufacturing method thereof are provided to minimize the number of manufacturing processes for obtaining the fiber plywood. CONSTITUTION: A manufacturing method of fiber plywood comprises the following steps: mixing first recycled synthetic fibers and second recycled synthetic fibers to obtain waste synthetic fibers using a mixer(10); cutting the waste synthetic fibers into the constant length using a cutter(20); cotton beating the cut waste synthetic fibers into felt using a cotton beating unit(30), and punching the felt into overlap felt using a punching unit(40); heating the overlap felt at 250 deg C in a heater(50) for melting low melting point raw material in the second recycled synthetic fibers, and compressing the heated overlap felt to obtain the fiber plywood using a heating compress-roller(60); cooling the fiber plywood; and cutting the cooled fiber plywood.

Description

Fiber board and manufacturing method

The present invention relates to a fiber plywood and a method for manufacturing the same, and more particularly, to recycle waste synthetic fibers discarded after use of clothing or woven fabric into fiber plywood to reduce the processing cost of waste synthetic fibers treated as waste and recycle resources. The present invention relates to a fiber plywood and a method of manufacturing the same, which improves resource utilization and simplifies the manufacturing process to improve productivity.

In addition, the present invention relates to a fiber plywood and a method for manufacturing the same, in which a wire-shaped heating wire is embedded in the manufacture of the fibrous plywood of waste synthetic fibers so as to have a function of an eco-friendly and heat-efficient heat transfer panel.

Today, the natural environment is seriously destroyed by various wastes and industrial wastes, and the natural ecosystem is also seriously threatened by indiscriminate logging and wood harvesting. Therefore, countries around the world are taking various measures to protect the natural environment and ecosystem, and recycling of waste products and development of alternative materials are highly recommended as part of specific measures.

On the other hand, in general, as a formwork installed in the construction site or concrete pouring wood plywood is mainly used, such plywood is widely used for a variety of uses, such as desks and furniture and interior materials of buildings. However, such wood plywood has a disadvantage that the price is high, the service life is short. Therefore, research and development on the material that can replace it is continuously made. In this regard, the technology for producing construction plywood or interior and exterior materials by recycling waste fiber generated from a textile or garment factory and waste synthetic resin generated from a synthetic resin product factory has been shown. However, the plywood manufactured by such a conventional method It is difficult to obtain uniform strength due to the difference between the temperature and the pressure applied to the surface and the inside, and shorten the lifespan accordingly, and in severe cases, the internal structure of the plywood is formed into a sponge-like shape to be used at all. There is a problem that can not be disposed of.

Therefore, in order to solve the above problems, the waste synthetic fibers are collected, cut into pieces, and selectively coated on both sides of thermosetting resins, which are binders, on the other surface processed, then dried to have a constant water content, and then cut and heated for each use. Fibrous plywood and a method of manufacturing the same are disclosed in a patent application No. 10-1997-5711 or the like which is injection molded by heating pressure through a press press and then cooled by a cooling press to cut and process the product according to the dimensions of the product.

However, the conventional fiber plywood and its manufacturing method as described above, by applying a separate binder on both sides of the other side to improve the bonding strength of the other side, the cost of the application of the binder is complicated and the manufacturing process for it is complicated. There is a problem.

In addition, since the other surface snow coated with the binder is forcibly injection-molded in a high pressure state through a heating press, the weight ratio of polyethylene (PE) or polypropylene (PP) which is the main component of the other snow surface is not constant. When the polyethylene (PE) or polypropylene (PP) does not have or exceeds a certain weight ratio, the tissues are cracked or distorted, respectively, so that the injection molding is not performed smoothly. have.

In addition, in the case of cooling the fiber plywood heated at a high temperature as described above through a cooling press, when cooling at a temperature of 14 ℃ to 25 ℃, which is a normal temperature, because the other side of the melt is slow cooling so as not to have a smooth surface As a result, when the work using the fiber plywood, the other surface is cracked or distracted by a work tool or the like, and there is a problem that the fiber plywood needs to be replaced again.

In addition, since the fiber plywood and the like have a constant water absorption rate because the raw material is a waste synthetic fiber, the waste synthetic fiber does not have the original compressed state when the water is absorbed and the volume of the fiber plywood is swelled. There is a problem that the degree of completeness is lowered, thereby deteriorating the waterproof function against precipitation, such as rain or snow.

Accordingly, an object of the present invention is to provide a fiber plywood and a method of manufacturing the same, which can improve productivity and reduce manufacturing cost by simplifying the manufacturing process by improving the bonding force of the other surface tongues without applying a separate binder to the other surface tongue of the waste synthetic fiber. It is.

In addition, another object of the present invention is to at least one of nylon-based fiber, acrylic fiber, polycarbonate, polyvinyl chloride and polystyrene, wherein polyethylene or polopropylene, which is the first regenerated synthetic fiber of the other side, is the second regenerated synthetic fiber. After having a certain weight part, the fiber plywood can be manufactured with high-fiber plywood with uniform strength by preventing the structure from being distorted or cracking through the compression of the heating pressure roller method rather than the injection method by the pressurized heat press. And to provide a method for producing the same.

In addition, another object of the present invention is to rapidly cool the fiber plywood heated at a high temperature at a low temperature so that the surface of the melted fiber plywood is quenched so that the degree of crystallinity of the surface faster than the inside of the fiber plywood It is possible to have a smooth surface, and through this, to provide an improved fiber plywood and a method of manufacturing the same.

In addition, another object of the present invention is to produce a fiber plywood and a method of manufacturing the same to have a function of an eco-friendly and heat-efficient heating panel by embedding a wire-shaped heating wire inside the manufacturing of the fiber plywood using waste synthetic fibers. To provide.

Meanwhile, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

To this end, according to the present invention, at least one of nylon fibers, acrylic fibers, polycarbonate, polyvinyl chloride, and polystyrene, based on 100 parts by weight of the first regenerated synthetic fiber including any one or a mixture of polyethylene and polypropylene. A first step in which waste synthetic fibers are formed by mixing 180 to 190 parts by weight of a second regenerated synthetic fiber including any one; A second step in which the constructed waste synthetic fiber is cut into a predetermined size, the cut waste fiber is burnt with felt, and the other felt is punched with an overlap felt in which a plurality of sheets are overlapped into one sheet; The punched overlap felt is heated to 250 ° C. to melt the raw material having a low melting point among the second regenerated synthetic fibers, and the heated overlap felt is heated / compressed at a temperature of 200 ° C. and 500 kg / cm 2 to 10 mm to A third step formed of a fiber plywood having a thickness of 15 mm; A fourth step in which the heated / compressed fiber plywood is rapidly cooled at a temperature of 4 ° C. or lower to crystallize the surface; And a fifth step in which the cooled fibrous plywood is cut into a predetermined size.

Here, it is preferable that the second regenerated synthetic fiber of the first step has 186 parts by weight based on 100 parts by weight of the first regenerated synthetic fiber.

In addition, during the punching of the overlapping felt of the second step, it is preferable that the felt to be located at the top and the bottom of the plurality of felt felt has a state in which the waste synthetic fibers having the same color mutually burned with felt.

On the other hand, according to the present invention, the waste synthetic fiber is cut into a predetermined size, the first step of the cut waste fiber is burned with felt; A second step in which a plurality of sheets of the felt are overlapped and heating wires are wired between some felts; A third step of punching the overlap felt with a plurality of felt sheets and heating wires in one sheet; A fourth step in which the punched overlap felt is heated to melt a raw material having a low melting point among the waste synthetic fibers, and the heated overlap felt is heated / compressed to form a fiber plywood having a predetermined thickness; A fifth step of rapidly cooling the heated / compressed fiber plywood to crystallize the surface; And a sixth step of cutting the cooled fibrous plywood to a predetermined size.

Further, according to the present invention, there is provided a fiber plywood produced according to any one of the above-described method for producing a fiber plywood slate.

Therefore, according to the present invention, the overlap felt formed by stacking a plurality of felts into one sheet is cooled after being heated / compressed in a state in which raw materials having a low melting point among the second recycled synthetic fibers are melted, thereby the first regeneration of the overlap felt is performed. Polyethylene or polypropylene, which is a fiber, may have improved bonding strength by the raw materials to be melted, thereby eliminating the application of a separate binder, thereby simplifying the manufacturing process of the fiber laminate and reducing the cost.

Further, through the overlap felt having 186 parts by weight of the second regenerated synthetic fiber with respect to 100 parts by weight of the first regenerated synthetic fiber, it is possible to manufacture a high-fiber plywood.

In addition, the fiber plywood pressurized by the forming roller is not forcibly hard pressed by the press, but soft-compressed by passing through the mold through the conveyor. It can have and the completeness of the product can be improved.

In addition, by rapidly cooling the fiber plywood at a temperature of 4 ℃ or less, the surface of the fiber plywood has a fast crystallinity, through which it is possible to manufacture a fiber plywood having a smooth surface and improved waterproof function.

In addition, when manufacturing the fiber plywood of the waste synthetic fibers, a wire-shaped heating wire is embedded therein to have a function of an environmentally friendly and heat-efficient heat transfer panel.

On the other hand, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a fiber plywood according to a first preferred embodiment of the present invention;
Figure 2 is a process diagram schematically showing the process of the manufacturing apparatus for manufacturing the fiber plywood of Figure 1;
Figure 3 is a process flow diagram showing a method of manufacturing a fiber plywood according to a first embodiment of the present invention; And
Figure 4 is a perspective view showing a fiber plywood according to a second embodiment of the present invention.

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

1 is a perspective view showing a fiber plywood according to a first embodiment of the present invention, Figure 2 is a process diagram schematically showing the process of the manufacturing apparatus for manufacturing the fiber plywood of FIG.

As shown in Fig. 1 and Fig. 2, in the fibrous plywood P according to the first preferred embodiment of the present invention, the waste synthetic fibers collected are polyethylene (PE) and polypropylene (PP) by the mixer 10. At least one of nylon fibers, acrylic fibers, polycarbonate (PC), polyvinyl chloride (PVC) and polystyrene (PS) based on 100 parts by weight of the first regenerated synthetic fiber composed of any one or a mixture of two Next, the waste synthetic fiber is cut into a predetermined size by a cutter 20, and the cut waste synthetic fiber is cut into the other cotton machine 30. After being burned with a felt (Felt) to completely loosen the ool by the), the other felt felt is punched by an overlap felt overlapping a plurality of sheets into one sheet by a punching machine 40, the punched overlap felt is a heater (50) By 250 The raw material having a low melting point in the second regenerated synthetic fiber is melted, and then the heated overlap felt is pressed by a heating pressure roller 60 at a temperature of 200 ° C. and a pressure of 500 kg / cm 2, and thus, from 10 mm to After being formed of fibrous plywood P having a thickness of 15 mm, the upper and lower surfaces, i.e., the surface of the heated / compressed fibrous plywood P, are rapidly cooled by a cooling roller 70 at a temperature of 4 ° C. or lower to melt the molten body. After the upper and lower surfaces of the overlap felt are crystallized rapidly so that the surface of the phosphor fiber plywood (P) is smooth, the fiber plywood (P) whose surface is rapidly crystallized is cut to a certain size by the cutter (80). To be manufactured.

Here, the components for manufacturing the fiber plywood (P) is preferably controlled by the controller (C).

Among the waste synthetic fibers mixed by the mixer 10, the weight part of a mixture of any one or two of polyethylene (PE) and polypropylene (PP), which are the first regenerated synthetic fibers, is 100, and the weight of the first regenerated synthetic fibers The weight of the regenerated synthetic fibers is 180 to 190, which means that when the weight ratio of the second regenerated synthetic fibers does not fall within the range of 180 to 190, the structure of the fiber plywood (P) is cracked, and thus, the product is not completed. Even when the weight ratio of the second regenerated synthetic fiber exceeds the range of 180 to 190, since the structure of the fibrous plywood is disturbed, the completeness of the product is not high, so that the first of the waste synthetic fibers may be used for smooth molding of the fibrous plywood (P). The weight part of the second regenerated synthetic fiber is preferably 180 to 190 with respect to 100 parts by weight of the regenerated synthetic fiber, and more preferably 100 of the first regenerated synthetic fiber in the waste synthetic fiber. The weight part of the second regenerated synthetic fiber with respect to the weight part is preferably 186.

That is, polyethylene (PE) or polypropylene having a melting point such as nylon-based fiber, acrylic fiber, polycarbonate (PC), polyvinyl chloride (PVC), polystyrene (PS) and the like as the second regenerated synthetic fiber is the first regenerated synthetic fiber. Since it is lower than the melting point of (PP), most of the second regenerated synthetic fibers melt when heated to 200 ° C. or higher.

Therefore, when the second regenerated synthetic fiber does not fall within the range of the weight part (180 to 190 with respect to 100 parts by weight of the first regenerated synthetic fiber) of the second regenerated synthetic fiber Since the melting part is not enough to bind the first regenerated synthetic fibers, the first regenerated synthetic fibers are not coupled smoothly, and the tissue of the fiber plywood P is disturbed.

Further, when the second regenerated synthetic fiber exceeds the range of the weight part (180 to 190 with respect to 100 parts by weight of the first regenerated synthetic fiber), the second regenerated synthetic fiber compared to the weight part of the first regenerated synthetic fiber Since the melting weight of Mg is far exceeding that of the first regenerated synthetic fiber, the first regenerated synthetic fiber is bound by a large amount of the binding component and the tissue of the fiber plywood P is cracked.

As described above, when the weight ratio of the second regenerated synthetic fiber does not fall within the range of 180 to 190 with respect to 100 parts by weight of the first regenerated synthetic fiber, the fiber plywood is manufactured only if it exceeds and corresponds to the range ( The performance analysis of P) is shown in the following table.

Component Analysis Comparison Table 1 Item Name The weight part of the second recycled synthetic fiber is less than the range The weight part of the second recycled synthetic fiber exceeds the range The weight part of the second recycled synthetic fiber is within the range importance 1.31 1.01 1.12 Tensile strength (kgf / cm2) 230 203 245 Flexural Strength (kgf / ㎠) 3.3 2.3 3.55 Flexural strength deformation (mm) 18 17 15.7 Fall impact test Some cracks occur Full crack clear

As shown in the above table, the weight ratio of the second regenerated synthetic fiber has a range of 180 to 190 with respect to 100 parts by weight of the first regenerated synthetic fiber than the tensile strength, the flexural strength, the bending strength deformation amount, and the fall. It can be seen that the impact test has better performance. Therefore, in order to smoothly form the fiber laminate P, the weight part of the second regenerated synthetic fiber is preferably 180 to 190 with respect to 100 parts by weight of the first regenerated synthetic fiber in the waste synthetic fiber.

In addition, the waste synthetic fibers to be cut to a certain size by the cutter 20, it is preferable to have a size of about 5 cm in width, 5 cm in length.

In addition, the felt (Felt) formed by the waste synthetic fiber is burned by the other surface machine 30, preferably has a thickness of about 3 mm to 5 mm.

In addition, it is preferable that the overlap felt formed by overlapping a plurality of felts into one sheet by the punching machine 40 is punched after 5 to 7 sheets of felt are stacked, and the overlap felt is used for the punching operation. Air is removed, and the thickness thereof becomes thinner. Here, the work of overlapping the plurality of felt sheets into one sheet is preferably performed by the front face machine.

In addition, the overlap felt is regenerated and synthesized in the fiber plywood P cooled by the cooling roller 70 having a thickness of about 10 mm to 15 mm by the heater 50 and the heating pressure roller 60. The raw materials having a melting point of less than 250 ° C. in the fiber are heated and compressed at a temperature of 200 ° C. and 500 kg / cm 2 in a molten state, and then rapidly cooled at a temperature of 4 ° C. or less.

Therefore, polyethylene (PE) and polypropylene (PP), which are the first regenerated synthetic fibers of the overlap felt, may have an improved bonding strength by the raw materials to be melted, thereby simplifying the manufacturing process without applying a separate binder. You can save money.

In addition, the overlap felt heated at the high temperature is rapidly cooled at a temperature of 4 ℃ or less, so that the upper and lower surfaces of the overlap felt in the molten state, that is, the plastic point, which is the point where the surface is solidified, has a faster state than the inside The surface is crystallized in a smooth state, and the inside thereof is crystallized while maintaining the original fabric material by causing the plastic point, which is the point of solidification than the surface, to be slow, so that the surface is smooth and has the same physical properties as a whole. In this case, it is possible to prevent the other side surface from being broken or disturbed by the work tool during the work.

That is, since the low temperature transmitted from the cooling roller 70 is concentrated on the surface of the overlap felt in the molten state at a high temperature, the surface of the overlap felt melted in the liquid state may be crystallized and thereby have a smooth surface. Waterproofing can also be improved.

Here, the cooling roller 70 is to rapidly cool the overlap felt through the roller rotated on the upper and lower surfaces of the overlap felt, the low temperature water is supplied to the coolant to each roller in a state where a plurality of rollers are arranged in a row Discharged to cool the surface of the roller. At this time, the cooling time of the overlap felt can be adjusted by adjusting the speed of the guide belt for supplying the overlap belt to the cooling roller 70, which can be most preferably determined by repeated operation.

In addition, it is preferable that the range of the temperature at which the overlap felt is rapidly cooled is 4 ° C. or less. When the overlap felt is cooled at a temperature higher than the range of the temperature, the surface of the overlap felt and the inside thereof are cooled slowly so that the surface is cooled. This is because it cannot have a crystallized state.

On the other hand, before the overlap felt punched by the punching machine 40 to the heater 50, the spreading device for extending the overlap felt to supply to the heater 50 may be further provided, the heater 50 Loading device for automatically loading the overlap felt heated by the heating roller (60) may be further provided.

In addition, the fiber plywood (P) by the cutter 80, the outer peripheral surface of the pseudo-molded product pushed out due to the compression of the heating roller 60 and the cooling roller 70 at the time of molding is removed to maintain a clean state To have.

Therefore, according to the fiber plywood (P) as described above, the overlap felt formed by stacking a plurality of felt sheets into one sheet, the temperature of 200 ℃ and 500 kg in the state that the melting point of the second regenerated synthetic fibers lower than 250 ℃ melted Since it is rapidly cooled at a temperature of 4 ° C. or less after being heated / compressed in a / cm 2 state, the binding force of polyethylene (PE) or polypropylene (PP), which is the first regenerated synthetic fiber of the overlap felt, is improved by the raw materials to be melted. It can have a separate binder does not need to be applied can simplify the manufacturing process and reduce the cost.

In addition, since the fiber plywood P pressurized by the heating pressure roller 60 is formed by soft compression molding through a conveyor rather than being hard compression molded by a press, the fiber plywood P This strong pressure does not break and can have a uniform strength, and the completeness of the product can be improved.

In addition, the overlap felt surface of the molten state at a high temperature is rapidly cooled by the low temperature transmitted from the cooling roller 70, the surface of the overlap felt melted in the liquid state is crystallized and thereby has a smooth surface.

Hereinafter, a method of manufacturing a fiber plywood according to a first embodiment of the present invention will be described.

3 is a process flowchart showing a method of manufacturing a fiber plywood according to a first embodiment of the present invention.

As shown in FIG. 3, in the method of manufacturing the fiber laminate P according to the first embodiment of the present invention, first, the collected waste synthetic fibers are composed of waste synthetic fibers by the mixer 10, where , The waste synthetic fibers, nylon fibers, acrylic fibers, polycarbonate (PC) with respect to 100 parts by weight of the first regenerated synthetic fibers composed of any one or a mixture of polyethylene (PE) and polypropylene (PP) , 180 to 190 parts by weight of the second regenerated synthetic fiber composed of polyvinyl chloride (PVC), polystyrene (PS) and the like is mixed (S100).

Thereafter, the waste synthetic fibers configured as described above are cut to a certain size by the cutter 20 (S110), and the cut waste synthetic fibers are burned with felt (Felt) which is completely unwound by the other cotton machine 30. (S120), the other felt is punched by an overlap felt overlapping a plurality of sheets into one sheet by the punching machine 40 (S130).

Here, in the punching of the overlap felt in which the plurality of sheets of felt overlap in one sheet, the felts to be positioned at the top and the bottom of the plurality of felts have the same color as each other during the mixing process. It is desirable to omit a separate painting work to have a state in which it is, it can simplify the manufacturing process, save costs, can eliminate the aversion to waste synthetic fibers.

Subsequently, the punched overlap felt is heated to 250 ° C. by the heater 50 to melt the raw material having a low melting point among the second regenerated synthetic fibers (S140), and the heated overlap felt is heated to the pressure roller 60. By heating / compression at a temperature of 200 ℃ and 500 kg / ㎠ to form a fiber plywood (P) having a thickness of 10 mm to 15 mm (S150), the heated / compressed fiber plywood (P) is a cooling roller By 70, it is rapidly cooled in the temperature state of 4 degrees C or less (S160).

Here, if the surface is rapidly cooled when the overlap felt heated at the high temperature is in a molten state, the upper and lower surfaces of the overlap felt in the molten state, that is, the point at which the surface solidifies, has a point where the plastic point is faster than the inside. The surface is crystallized in a smooth state, and the inside thereof is crystallized while maintaining the original fabric material such that the plastic point, which is the point of solidification than the surface, has a slow state, and the surface is smooth and has the same physical properties as a whole. ) Is completed.

Thereafter, the cooled fiber plywood (P) is cut into a predetermined size by the cutter (90) (S170).

Therefore, according to the method of manufacturing the fiber plywood as described above, the overlap felt formed by stacking a plurality of felt sheets into one sheet is a temperature of 200 ° C. and 500 kg in a state in which raw materials having a melting point lower than 250 ° C. of the second regenerated synthetic fiber are melted. Since it is rapidly cooled at a temperature of 4 ° C. or less after being heated / compressed in the / cm 2 state, the binding force of polyethylene (PE) and polypropylene (PP), which are the first regenerated synthetic fibers of the overlap felt, is improved by the raw materials to be melted. It can have a separate binder does not need to be applied can simplify the manufacturing process and reduce the cost.

In addition, since the fiber plywood P pressurized by the heating pressure roller 60 is formed by soft compression molding through a conveyor rather than being hard compression molded by a press, the fiber plywood P This strong pressure does not break and can have a uniform strength, and the completeness of the product can be improved.

In addition, the overlap felt surface of the molten state at a high temperature is rapidly cooled by the low temperature transmitted from the cooling roller 70, the surface of the overlap felt melted in a liquid state is crystallized and thereby has a smooth surface, during operation It is possible to prevent the sulphage from being broken or disturbed by a tool or the like.

On the other hand, as described above, 100 parts by weight of polyethylene (PE) or / and polypropylene (PP) waste synthetic fiber is the first regenerated synthetic fiber and 180 to 190 weight of the second regenerated synthetic fiber relative to the first regenerated synthetic fiber When comparing the performance analysis of the fiber plywood (P) in the case of the case and the slate according to the 'new material slate manufacturing method regenerated fiber waste' of Patent Application No. 10-1997-5711 is shown in the following table.

Component Analysis Comparison Table 2 Item Name According to the invention
Synthetic fiber plywood Patent
No. 10-1997-5711
New Material Slate Reference value importance 1.12 1.01 0.95 or more Tensile strength (kgf / cm2) 245 203 120 or more Flexural Strength (kgf / ㎠) 3.55 2.3 2.0 or higher Flexural strength deformation (mm) 15.7 17 15.5 and below Fall impact test clear Some cracks and cracks Cracks, cracks and usage
No harm Permeability clear Water droplets inside No water droplets inside

As shown in the above table, for the slate of the conventional patent application No. 10-1997-5711, the fiber plywood (P) according to a preferred embodiment of the present invention, the waste synthetic fibers are polyethylene (PE) ) And / or 100 parts by weight of polypropylene (PP) and 180 to 190 parts by weight of the second regenerated synthetic fiber to the first regenerated synthetic fiber, it can be confirmed that the product is high in completeness and excellent in all performance. . That is, through the waste synthetic fibers having 100 parts by weight of polyethylene (PE) and polypropylene (PP) as the first regenerated synthetic fiber and 180 to 190 parts by weight of the second regenerated synthetic fiber to the first regenerated synthetic fiber, As in the prior art, it is possible to manufacture fiber plywood (P) having improved durability and the like without adding a separate binder.

Therefore, according to the above, by recycling the waste fibers treated as waste to produce a fiber plywood, it can have an economic effect according to the environmental improvement effect and resource recycling.

In addition, since the low temperature transmitted from the cooling roller 70 is concentrated on the surface of the overlap felt in the molten state at a high temperature, the surface of the overlap felt melted in the liquid state may be crystallized and thereby have a smooth surface. Waterproofing can also be improved.

On the other hand, Figure 4 is a perspective view showing a fiber plywood according to a second embodiment of the present invention.

According to the fibrous plywood (P) according to the first preferred embodiment of the present invention and a method for producing the same, the regenerated waste fibers treated as waste are manufactured from the fibrous plywood, and the inner surface of the overlap felt surface is melted at a high temperature. Although the low temperature transmitted from the cooling roller is concentrated, the surface of the overlap felt melted in a liquid state is crystallized, and through this, a fiber plywood P having a smooth surface is manufactured, but according to the second preferred embodiment of the present invention. According to the fiber plywood (P) and the manufacturing method thereof, as shown in Figure 4, the waste synthetic fibers are cut to a certain size by the cutter 20 and the cut waste synthetic fibers are rolled by the other side machine (30) When the felt is struck with a felt that is completely loosened and then the felt is punched by the punching machine 40 with an overlap felt in which a plurality of sheets are overlapped into one sheet, the felt is separated between some felts. And it has a shape such that the heating elements (EL) are wires.

Here, the heating wire (EL) is preferably a carbon heating wire made of a heating wire made of carbon as a raw material, the carbon heating wire is strong against heat, has a strong durability against chemicals, has excellent electrical and thermal conductivity, and has a low coefficient of thermal expansion. It has light features.

In addition, the heating wire EL has a film type in which a heating wire is wired in a net shape, so that the heating wire EL can be easily sandwiched between some felts among the plurality of felts, and generally a part of the heating wire that is continuously wired. If the broken line can solve the problem that the heat transfer was impossible.

On the other hand, it is preferable that the second preferred embodiment of the present invention corresponds to the first preferred embodiment except for the above-mentioned parts.

Therefore, according to the above, by recycling the waste fibers treated as waste so that the heating wire is embedded in the fiber plywood, it is possible to reduce the manufacturing cost compared to the heat transfer panel using a metal such as aluminum, environmentally friendly and insulation It can have the function of excellent heat transfer panel.

While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains have various permutations and modifications without departing from the spirit or essential features of the present invention. It is to be understood that the present invention may be practiced in other specific forms, as modifications are possible. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (6)

Nylon-based fiber, acrylic fiber, polycarbonate (PC), polyvinyl chloride (PVC) and polystyrene (PS) in a first regenerated synthetic fiber comprising any one or a mixture of polyethylene (PE) and polypropylene (PP) A first step in which waste synthetic fibers are formed by mixing a second regenerated synthetic fiber including at least one of the above;
A second step in which the constructed waste synthetic fibers are cut into a predetermined size, the cut waste synthetic fibers are burned with felt, and punched with overlap felt in which the plurality of felt sheets are overlapped with one sheet;
The punched overlap felt is heated to 250 ° C. to melt the raw material having a low melting point among the second regenerated synthetic fibers, and the heated overlap felt is heated / compressed at a temperature of 200 ° C. and 500 kg / cm 2 to 10 mm to A third step formed of a fiber plywood having a thickness of 15 mm;
A fourth step of cooling the heated / compressed fiber plywood to crystallize the surface; And
And a fifth step in which the cooled fiber plywood is cut to a predetermined size,
The waste synthetic fiber of the first step is based on 100 parts by weight of the first regenerated synthetic fiber including any one or a mixture of polyethylene (PE) and polypropylene (PP), nylon fiber, acrylic fiber, polycarbonate ( PC), polyvinyl chloride (PVC) and polystyrene (PS) is composed of 186 parts by weight of a second recycled synthetic fiber comprising at least one;
The waste synthetic fiber of the second step is cut into a size of 5cm in width, 5cm in length, the cut waste synthetic fiber is burned with a felt of 3mm to 5mm thickness, the other felt felt 5 to 7 sheets overlap Punched with overlap felt;
Before punching the overlap felt, the felt to be positioned at the top and the bottom of the five to seven felts has a state in which waste synthetic fibers having the same similar color are burned with felt, and when the felts are overlapped between some felts. A film type heating wire in which the mesh-shaped carbon heating wire is wired;
The fiber plywood of the fourth step is a fiber plywood manufacturing method, characterized in that to cool rapidly at a temperature of 4 ℃ or less so that the surface is crystallized in a smooth state. delete delete delete delete delete

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