KR101001139B1 - Fiber board slate and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A fiber board slate and a manufacturing method thereof are provided to enhance the connecting force of scotching layers of a waste synthetic fiber without a separate connecting agent, to enhance productivity according to the simplification of a manufacturing process and to reduce the manufacturing cost. CONSTITUTION: A manufacturing method of a fiber board slate is as follows. A first regenerated synthetic fiber of 100weight is mixed with a second regenerated synthetic fiber of 108~190weight to form a waste synthetic fiber. The first fiber comprises any one or a combination of polyethylene(PE) and polypropylene(PP). The second fiber comprises at least one of nylon based fiber, acryl based fiber, polycarbonate(PC), polyvinylchloride(PVC) and polystyrene(PS). The waste synthetic fiber is cut to a certain size and is scotched with felt and is punched with overlap felt. The punched overlap felt is heated at a temperature of 250°C and a low melting-point material is melted from the second fiber.

Description

Fiber board slate and manufacturing method thereof

The present invention relates to a fiber plywood slate and a method for manufacturing the same, and more particularly, to recycle waste synthetic fibers discarded after use of clothing or woven fabric into slate, thereby reducing the processing cost of waste synthetic fibers treated as waste and recycling resources. The present invention relates to a fiber plywood slate that can improve productivity by improving resource utilization rate and simplifying a manufacturing process.

Currently used slats are asbestos slate produced mainly from asbestos and cement. As the insulation and heat insulation are relatively low, the outdoor temperature is transferred to the room through the slate, so the indoor temperature increases in summer and the indoor temperature in winter. The lower the cooling / heating efficiency is lowered by this, the operating time of the cooling / heating equipment is increased, the use of energy, the situation is causing economic losses.

In addition, asbestos slate simply uses asbestos and cement as a main raw material, so it is easily damaged due to its weak durability, and is easily damaged even if a slight impact is applied during storage and transportation of the completed slat, and in particular, when installing the slate. When a shock due to careless handling is applied, it is easily broken and causes a lot of economic losses.

Therefore, in order to solve the above problems, according to the patent application No. 10-1997-5711 'method for producing new material slate regenerated fiber waste', waste synthetic fibers are collected, cut into pieces and processed on the other side After applying both sides of the thermosetting resin as a binder selectively and drying it to have a constant water content, it is cut according to the use and heated by pressing through a heating pressure press, injection molding, and then rapidly cooled through a cooling press to cut the product according to the product dimensions I'm trying to.

However, the conventional slate and the slate manufacturing method as described above, because a separate binder is applied to both sides of the other side to improve the bonding strength of the other side of the tongue, the cost of the application of the binder is complicated and the manufacturing process for it is also complicated. There is this.

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.

Therefore, an object of the present invention is to improve the bonding strength of the other side tongues without applying a separate binder to the other side of the waste synthetic fiber fiber plywood slate and a method for producing the same, which can improve the productivity and manufacturing cost according to the simplified manufacturing process To provide.

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 is prevented from being distorted or cracked by the compression of the heating pressure roller method, rather than the injection method by the pressurized heat press. It is to provide a plywood slate and a method of manufacturing the same.

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, with respect to 100 parts by weight of the first regenerated synthetic fiber including any one or a mixture of polyethylene (PE) and polypropylene (PP), nylon-based fibers, acrylic fibers, polycarbonate (PC 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 at least one of polyvinyl chloride (PVC) and polystyrene (PS); A second step in which the composed 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 300 kg / cm 2 to form a fiber plywood. A third step of forming and cooling the heated / compressed fiber plywood at a temperature of 14 ° C .; And a fourth step in which the cooled fibrous plywood is rolled and pressed to 500 kg / cm 2 to be formed into a fibrous plywood slate S having a thickness of 3 mm to 5 mm, and the fibrous plywood slate S is cut to a predetermined size. Provided is a method of manufacturing a fiber plywood slate comprising a.

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, when punching the overlap 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 to have a state in which the waste synthetic fibers having the same similar color mutually burned with felt.

On the other hand, according to the present invention, there is provided a fiber plywood slate manufactured according to the above production method.

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 an improved binding force by the raw materials to be melted, thereby eliminating the application of a separate binder, thereby simplifying the manufacturing process and reducing costs.

In addition, through the overlap felt having 186 parts by weight of the second regenerated synthetic fibers with respect to 100 parts by weight of the first regenerated synthetic fibers, it is possible to produce a high degree of completeness of the tissue.

In addition, the fiber plywood slate pressurized by the forming roller is not forcibly hard pressed by the press but soft-compressed as it passes through the mold through the conveyor, so that the fiber plywood does not break even under strong pressure and thus uniform strength. It can have and the completeness of the product can be improved.

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 slate according to a 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 slate of Figure 1; And
Figure 3 is a process flow diagram showing a method for manufacturing a fiber laminate slate according to a preferred 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 slate according to a 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 slate of FIG.

As shown in Figures 1 and 2, the fibrous plywood slate (S) according to a preferred embodiment of the present invention, the collected waste synthetic fibers are polyethylene (PE) by the sorter (10) and a mixer (not shown) Nylon fiber, acrylic fiber, 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 of polypropylene (PP) 180-190 parts by weight of the second regenerated synthetic fiber composed of at least one of the mixture is composed of waste synthetic fibers, and then the constructed waste synthetic fibers are cut to a predetermined size by the cutter 20, and the cut waste synthetic fibers After the cotton is struck with a felt (Felt) that is completely loosened by the other cotton machine 30, the other felt felt is punched by an overlap felt overlapping a plurality of sheets into one sheet by a punching machine 40, and the punched overlap felt is end The raw material having a low melting point in the second regenerated synthetic fiber was melted by the heating device 50 at 250 ° C., and the heated overlap felt was heated at a temperature of 200 ° C. and 300 kg / cm 2 by the heating pressure roller 60. After being heated / compressed in a state to form a fiber plywood, the heated / compressed fiber plywood is cooled by a cooling roller 70 at a temperature of 14 ° C., and the cooled fiber plywood is 500 by a forming roller 80. After being pressurized to kg / cm 2 and molded into a fiber plywood slate (S) having a thickness of 3 mm to 5 mm, the fiber plywood slate (S) is cut into a predetermined size by the cutter 90 and manufactured.

Here, the components for producing the fiberboard slate (S) is preferably controlled by the controller (C).

The weight part of any one or a mixture of polyethylene (PE) and polypropylene (PP), which are the first regenerated synthetic fibers, among the waste synthetic fibers selected by the sorting machine 10 is 100, and the weight of the first regenerated synthetic fiber 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 fibrous plywood is cracked, and thus the product is not completed. Even when the weight ratio of the regenerated synthetic fibers exceeds the range of 180 to 190, since the structure of the fibrous plywood is disturbed, the completeness of the product is not high. The weight part of the second regenerated synthetic fiber is preferably 180 to 190, and more preferably 100 weight of the first regenerated synthetic fiber in the waste synthetic fiber. The weight part of the second regenerated synthetic fiber 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 smoothly bonded and the tissue of the fiber plywood 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 s far exceeds the extent to which the first regenerated synthetic fiber is bound, the first regenerated synthetic fiber is bound by an excessive amount of the binding component and the tissues of the fiber plywood are split.

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 produced only if it exceeds this and corresponding to the range or Comparing the performance analysis of the fiber plywood slate (S) 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 / ㎠) 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, for smooth molding of the fiber plywood, 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 among the waste synthetic fibers.

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 fiber plywood formed by the heater 50 and the heating pressure roller 60 and cooled by the cooling roller 70 may be formed by melting raw materials having a melting point lower than 250 ° C. in the regenerated synthetic fiber. After the heating / compression at a temperature of 200 ° C. and 300 kg / cm 2 in the state and rapidly cooling at a temperature of 14 ° C., polyethylene (PE) and polypropylene (PP), which are the first regenerated synthetic fibers of the overlap felt, are It can have improved binding force by the raw materials to be melted, there is no need to apply a separate binder can simplify the manufacturing process and reduce the cost. Here, a spreading device may be further provided to spread the overlap felt to the heater 50 before supplying the overlap felt punched by the puncher 40 to the heater 50, and 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 slate (S) is pressed by the molding roller 80 is molded into a shape having an acid and valleys by pressing the cooled fiber plywood to 500 kg / ㎠, the fiber plywood is Likewise, since the compression molding is performed by passing through the mold through the conveyor, rather than being forcibly injection molded, the fiber plywood may have a uniform strength because it is not damaged even at a high pressure, and the completeness of the product may be improved.

In addition, the fiber board slate (S) by the cutter 90, the outer peripheral surface is pushed out due to the pressing of the molding roller 80 during molding is removed to have a clean state.

Therefore, according to the fiber laminate slate (S) as described above, the overlap felt formed by stacking a plurality of felt sheets into one sheet, the temperature of 200 ℃ and 300 in the state that the melting point of the second regenerated synthetic fiber is lower than 250 ℃ raw materials are melted Since it is rapidly cooled at a temperature of 14 ° C. after being heated / compressed in the kg / cm 2 state, the first regenerated synthetic fiber of polyethylene (PE) or polypropylene (PP), which is the overlapping felt, is improved in the binding force 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 laminate slate (S) pressurized by the forming roller 80 is not forcibly hard pressed by the press but soft-compressed by passing through the mold through the conveyor, the fiber laminate is subjected to a strong pressure. It does not break even because it can have a uniform strength and can improve the completeness of the product.

Hereinafter, a method of manufacturing a fiber laminate slate according to a preferred embodiment of the present invention will be described.

Figure 3 is a process flow diagram showing a method for manufacturing a fiber laminate slate according to a preferred embodiment of the present invention.

As shown in Figure 3, in the method for producing a fiber-plywood slate (S) according to a preferred embodiment of the present invention, first, the collected waste synthetic fibers are waste synthetic fibers by a sorter (10) and a mixer (not shown) Wherein, the waste synthetic fibers, nylon fibers, acrylic fibers, based on 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 polycarbonate (PC), polyvinyl chloride (PVC), polystyrene (PS) and the like are mixed (S100).

Thereafter, the waste synthetic fiber configured as described above is cut into a predetermined size by the cutter 20 (S110), and the cut waste fiber is 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 felt sheets overlapped with one sheet in the S130 step, the felts to be positioned at the upper and lower portions of the plurality of felts may have waste synthetic fibers having the same similar color to each other during the selection and mixing process. It is desirable to omit a separate painting work by having a felt surface, thereby simplifying the manufacturing process, saving costs, and eliminating 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 300 kg / ㎠ to form a fiber plywood (S150), the heated / compressed fiber plywood is cooled by a cooling roller 70 at a temperature of 14 ℃ (S160 ).

Thereafter, the cooled fiber plywood is pressurized by the forming roller 80 to 500 kg / cm 2 and molded into a fiber plywood slate (S) having a thickness of 3 mm to 5 mm (S170), and the fiber plywood slate (S). ) Is cut into a predetermined size by the cutter 90 (S180).

Therefore, according to the method of manufacturing the fiber laminate slate as described above, the overlap felt formed by stacking a plurality of felt sheets into one sheet has a temperature of 200 ° C. and 300 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 14 ° C. after being heated / compressed in a kg / cm 2 state, the first regenerated synthetic fiber of polyethylene (PE) and polypropylene (PP), which are the first regenerated synthetic fibers of the overlap felt, have improved bonding strength 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 laminate slate (S) pressurized by the forming roller 80 is not forcibly hard pressed by the press but soft-compressed by passing through the mold through the conveyor, the fiber laminate is subjected to a strong pressure. It does not break even because it can have a uniform strength and can improve the completeness of the product.

On the other hand, as described above, 100 parts by weight of the mixture of any one or two of polyethylene (PE) and polypropylene (PP), the waste synthetic fiber is the first regenerated synthetic fibers and the second regenerated synthetic to the first regenerated synthetic fibers When comparing the performance analysis of the fiber laminate slate (S) in the case of having 180 to 190 parts by weight of fiber and the slate according to the 'new material slate manufacturing method for regenerating fiber waste' of Patent Application No. 10-1997-5711 Same as the table.

Component Analysis Comparison Table 2 Item Name According to the invention
Synthetic Fiber Slate Patent Application No. 10-1997-5711
New Material Slate Reference value importance 1.12 1.01 0.95 or more Tensile strength (kgf / ㎠) 245 203 More than 120 Flexural Strength (kgf / ㎠) 3.55 2.3 2.0 or higher Flexural strength deformation (mm) 15.7 17 15.5 or less Fall impact test clear Some cracking or cracking Free from cracks, cracks and harm in use

As shown in the above table, the synthetic fiber slate (S) according to a preferred embodiment of the present invention with respect to the slate of the conventional patent application No. 10-1997-5711, the waste synthetic fibers are polyethylene ( 100 parts by weight of the mixture of any one or two of PE) and polypropylene (PP) and 180 to 190 parts by weight of the second regenerated synthetic fiber to the first regenerated synthetic fiber, the high degree of completeness of the product in all performance It can be confirmed excellent. That is, the waste synthetic fiber is 100 parts by weight of any one or a mixture of polyethylene (PE) and polypropylene (PP), which is the first regenerated synthetic fiber, and the second regenerated synthetic fiber 180 to the first regenerated synthetic fiber. By having 190 parts by weight, it is possible to produce a slat with improved durability and the like without adding a separate binder as in the prior art.

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

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, since modifications may be made. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (6)

Nylon fiber, acrylic fiber, polycarbonate (PC), polyvinyl chloride (PVC) based on 100 parts by weight of the first regenerated synthetic fiber containing any one or a mixture of polyethylene (PE) and polypropylene (PP) And 180 to 190 parts by weight of a second regenerated synthetic fiber comprising at least one of polystyrene (PS). The method of claim 1, wherein the second regenerated synthetic fiber,
Fiber plywood slate characterized in that it has 186 parts by weight based on 100 parts by weight of the first regenerated synthetic fibers. Nylon fiber, acrylic fiber, polycarbonate (PC), polyvinyl chloride (PVC) based on 100 parts by weight of the first regenerated synthetic fiber containing any one or a mixture of polyethylene (PE) and polypropylene (PP) And 180 to 190 parts by weight of the second regenerated synthetic fiber including at least one of polystyrene (PS) to form waste synthetic fibers.
A second step in which the composed 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 300 kg / cm 2 to form a fiber plywood. A third step of forming and cooling the heated / compressed fiber plywood at a temperature of 14 ° C .; And
The cooled fibrous plywood is rolled to 500 kg / ㎠ to form a fiber plywood slate (S) having a thickness of 3 mm to 5 mm, the fourth step of cutting the fiber plywood slate (S) to a certain size Fibrous plywood slate manufacturing method comprising a. The method of claim 3, wherein the second regenerated synthetic fiber of the first step,
The method of manufacturing a fiber plywood slate characterized in that it has 186 parts by weight based on 100 parts by weight of the first regenerated synthetic fiber. The method of claim 3, wherein the punching of the overlap felt in the second step,
Felt to be placed in the upper and lower portion of the plurality of felt felt fiber composite slate manufacturing method characterized in that the waste synthetic fibers having the same color mutually have a state that is burnt with the felt. A fibrous plywood slate prepared according to any one of claims 3 to 5, wherein the fibrous plywood slate manufacturing method.

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