KR101568963B1

KR101568963B1 - Manufacturing Method of Fiber Board And the composite

Info

Publication number: KR101568963B1
Application number: KR1020150098129A
Authority: KR
Inventors: 신혜원; 신혜수
Original assignee: 신혜원; 신혜수
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2015-11-17

Abstract

The present invention relates to a method for producing a fiber plywood and a composition thereof, and more particularly, to a method for producing a fiber plywood which can be used as a wall or floor of a building or as a finishing material for furniture, In order to improve it, it is possible to mix and mix raw materials mixed with hemp fiber, PP, LMPP and PE at a predetermined weight ratio, and to separate the fibers one by one using a cardboard machine (card machine) A first step of producing a web, which is a thin paper-like fiber, A second step of laminating the webs in such a manner that the fiber directions of the webs intersect with each other at right angles and pressing them with a punching machine to form a single semi-finished fiber plate; A plurality of heating plates arranged at upper and lower sides at predetermined intervals, and first power generating means for adjusting the interval between the heating plates; and a plurality of cooling plates arranged in parallel with the hot pressing means, And a second power generating means for controlling the interval between the cooling plates, and a semi-processed fiber plate material placed between the heating plate and the cooling plate to be sequentially transferred to the heating plate and the cooling plate And a third step of heat-pressing and cooling-pressing a plurality of the semi-finished fibrous sheet materials with a heat and cooling pressurizing device constituted by a conveying belt, and a third step of manufacturing the fiber plywood Lt; / RTI >

Description

TECHNICAL FIELD [0001] The present invention relates to a method for manufacturing a fiber plywood,

The present invention relates to a method for producing a fiber plywood, and more particularly, to a method for producing a fiber plywood which is used as a finishing material for a wall, floor,

Generally, waste fibers and waste wastes are classified as specific industrial wastes, which remain after product manufacturing in the course of making products (for example, rods, garments, etc.) using fibers or yarns. The specific industrial waste composed of such waste fibers and waste paper has a problem of causing pollution of the environment of the unauthorized land and has a disadvantage in that a great deal of processing cost is incurred. Therefore, attempts have been actively made to produce building materials such as plywood by recycling waste fibers and waste paper.

For example, Japanese Patent Registration No. 10-1166888 discloses a method for producing a recycled synthetic fiber comprising a nylon-based fiber, an acrylic fiber, a polycarbonate (PC), a polypropylene (PP), a polypropylene A first step wherein waste synthetic fibers are formed by mixing second regenerated synthetic fibers containing at least one of vinyl chloride (PVC) and polystyrene (PS); A second step in which the waste synthetic fibers are cut to a predetermined size, the cut waste synthetic fibers are felted, and the plurality of felt felts are piled one over the other; The punched overlapped felt is heated to 250 DEG C to melt the raw material having a low melting point in the second regenerated synthetic fiber, and the heated overlapped felt is heated / compressed at a temperature of 200 DEG C and 500 kg / A third step of forming a fiber plywood having a thickness of 15 mm; A fourth step of cooling the heated / compressed fiber plywood to crystallize the surface; And a fifth step in which the cooled fiber plywood is cut to a predetermined size.

However, such a manufacturing method is advantageous from the viewpoint of resource recycling, but the overlapped felt punched at the time of manufacturing the fiber plywood is heated while passing through the heater 50, and then heated / compressed by the heating and pressing roller 60, There is a problem that the productivity of the fiber plywood is lowered because it is difficult to simultaneously produce a plurality of fiber plywoods because the devices formed by the plywood P and then rapidly cooled by the cooling roller 70 are formed of a series of continuous structures.

Accordingly, the present invention has been made in order to solve the problems of the prior art, and it is an object of the present invention to provide a method of manufacturing a fiber plywood which can be used as a finishing material for walls, And to provide a method of manufacturing a fiber plywood which can improve the strength of the fiber plywood.

It is another object of the present invention to provide a method for producing a fiber plywood which is environmentally friendly and has high strength as a mixture of natural fibers such as hemp fibers.

In order to solve such a technical problem,

The fibers are mixed and rubbed with a mixture of PP, PP and PE in a predetermined weight ratio, and the fibers are separated one by one using a cardboard machine, A first step of fabricating a web, which is a thin paper-like fiber that is in parallel with a card shape; A second step of laminating the webs in such a manner that the fiber directions of the webs intersect with each other at right angles and pressing them with a punching machine to form a single semi-finished fiber plate; A plurality of heating plates arranged at upper and lower sides at predetermined intervals, and first power generating means for adjusting the interval between the heating plates; and a plurality of cooling plates arranged in parallel with the hot pressing means, And a second power generating means for controlling the interval between the cooling plates, and a semi-processed fiber plate material placed between the heating plate and the cooling plate to be sequentially transferred to the heating plate and the cooling plate And a third step of subjecting the plurality of semi-finished fibrous sheets to thermal compression and cold pressing with a heat and cooling pressurizing apparatus constituted by a conveying belt. The present invention also provides a method of manufacturing a fiber plywood.

The polypropylene is cut into 15 to 25 parts by weight of the PP, the LMPP (polypropylene), and the LMPP (polypropylene) is cut before the first step. 15 to 25 parts by weight of the low-melting polypropylene, 15 to 25 parts by weight of the polyethylene, and 35 to 50 parts by weight of the hemp fibers.

Further, a guide belt is further provided on the conveying belt.

In the third step, the thermocompression bonding is performed for about 3 minutes using a heating plate heated to 170 ° C so that the resins and the hairs are integrally joined together. The cooling and compression bonding is performed by cooling the cooled plate at a temperature of 25 ° C or less Is used for about 3 minutes.

Further, according to the present invention,

15 to 25 parts by weight of PP (polypropylene), 15 to 25 parts by weight of a low melting point resin LMPP (Low-melting Polypropylene), 15 to 25 parts by weight of PE (polyethylene) The present invention also provides a composition of the fiber plywood characterized by being produced by the method of the present invention.

At this time, the hemp fibers are cut to a predetermined length and mixed with the polypropylene (PP), low-melting polypropylene (LMPP) and polyethylene (PE).

The fiber plywood according to the present invention can improve the productivity by simultaneously performing thermal compression and cooling of a plurality of fiber plywoods at the time of manufacturing a fiber plywood in a cold environment by using a hemp fiber as a main raw material as a main raw material, It is advantageous for mass production.

In addition, the fiber plywood manufactured according to the present invention is eco-friendly and has excellent strength, and thus can be used for various purposes such as walls, floor coverings, finish materials for furniture, etc.

1 is a view showing a manufacturing process of a fiber plywood according to the present invention.
2 is a cross-sectional view showing a heat and cooling press apparatus according to the present invention.

Hereinafter, a method of manufacturing a fiber plywood according to the present invention and its composition will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the manufacturing process of the fiber plywood according to the present invention is used for producing a fiber plywood which is used as a finishing material for a wall, a floor or furniture in a building, and is environmentally friendly and excellent in strength. And a plurality of resins are mixed to produce a fiber plywood.

The manufacturing process thereof is sequentially performed by cutting and refining the raw material (S1), the other surface and the surface S2, molding and punching (S3), heat and cold pressing (S4), and cutting (S5).

Hereinafter, these manufacturing steps will be described in order.

First, as a raw material for the production of fiber plywood, hemp fiber, PP (polypropylene), LMPP (low-melting polypropylene) and PE (polyethylene) are used. Such a raw material is cut to a suitable length or size of, for example, 5 cm or less.

Looking at these materials, PP (polypropylene) is generally known as the most safe plastic. Because of such stability, PP (polypropylene) is recently widely used as a plasticizer for polyethylene.

The low-melting polypropylene (LMPP) is obtained by mixing polypropylene (PP), low-melting polypropylene (LMPP), polyethylene (PE) When heat is applied later, it melts at a low temperature and functions as an adhesive.

On the other hand, PE (polyethylene) is a widely used plastic such as automobile parts, electronic products, confectionary wrapping paper, paper coating, mask and is harmless to human body and is used for blending with hemp fiber.

In addition, horsetail fiber, which is a main material of the present invention, is a natural material having excellent thermal conductivity and strength.

Such hemp fibers are extracted from the stem of a plant hemp, and are stiff, have good breathability, have a good absorbency, and are rapidly used as summer cloths. More specifically, hemp fiber is mainly used in garments such as flax (hemp), hemp (hemp), hemp (hemp) and jute (hemp) Such as leaf fibers, leaf fibers, coconut fiber, and the like, which are collected from the leaves, such as manila, sisal, aloe vera, new zealand, pineapple, Includes hard fibers.

Of course, hemp fibers have a disadvantage that they are easily wrinkled. In order to solve this problem, the present invention blends with PE (polyethylene).

That is, the upper and lower fiber plywoods 200 and 210 have properties that are excellent in strength and thermal conductivity while using environmentally friendly materials harmless to the human body.

Such raw materials are improved by the set weight ratio.

15 to 25 parts by weight of PP (polypropylene), 15 to 25 parts by weight of low-melting polypropylene (LMPP) as a low melting point resin, PE (polyethylene) 15 to 25 parts by weight, and 35 to 50 parts by weight of natural fibers.

Preferably, 20% by weight of PP, 20% by weight of LMPP, 20% by weight of PE and 40% by weight of natural fibers are mixed.

&Lt; Surface and Somen Surface (S2) >

20% by weight of PP (polypropylene), 20% by weight of LMPP (low-melting polypropylene), 20% by weight of PE (polyethylene) and 40% And. In this case, spices and deodorants can be further mixed.

After mixing the raw materials with a cotton machine and loosening the fibers, the fibers are separated by a cardboard machine and made parallel to each other. A web of thin paper-like fibers is produced.

&Lt; Molding and Punching (S3)

Since the directions of the fibers of the web produced through the above step S2 are constant, webs are laminated by using the molding machine. At this time, in order to improve the strength of the fiber plywood to be manufactured later, the fiber direction of the web placed on the lower side and the web fiber direction stacked on the upper side are sequentially stacked.

At this time, it is preferable that the fiber direction intersect at right angles when the webs are laminated, and fiber plywood of various thicknesses can be manufactured by adjusting the lamination height as required.

In this way, webs are alternately stacked and pressed with a punching machine to form a single semi-finished fiberboard.

&Lt; Heat and Cooling Compression (S4) >

The semi-finished fibrous sheet produced through the above-described step (S3) sequentially performs thermal compression and cold pressing using the heat and cooling pressurizing apparatus as shown in Fig. In this case, several semicured fiber sheet materials P produced through the above step (S2) are simultaneously subjected to thermo-compression and cold-compression.

2, the heat and cooling pressurizing apparatus 1 comprises a first power generating means 120 for arranging a plurality of heating plates 10 at upper and lower positions at predetermined intervals and adjusting the distance between the heating plates 110 A plurality of cooling plates (210) arranged in parallel with the hot press means (100) and arranged at upper and lower sides at predetermined intervals, and a second power generating means And a cooling plate 210 which is disposed between the heating plate 110 and the cooling plate 210. The cooling plate 210 is disposed between the cooling plate 210 and the cooling plate 210, And a transfer belt 300 for sequentially transferring the toner images.

Of course, a guide belt 400 is further provided on the conveying belt 300 so that the semi-processed fiberboard P mounted on the conveying belt 300 can be stably moved.

The first power generating means 120 is constituted by a first hydraulic cylinder 122 and the end of the piston 124 of the first hydraulic cylinder 122 is integrally coupled to the support die 126, The spaces between the upper and lower heating plates 110 'and 110 "are narrowed to press the upper and lower surfaces of the semifinished fibrous sheet material P reaching between the upper and lower heating plates 110' and 110" Go ahead. In this case, the thermocompression bonding is performed by using the heating plate 110 heated to 170 DEG C for about 3 minutes to integrally bond the resin and hairs.

The second power generating means 220 is constituted by a second hydraulic cylinder 222 and the end of the piston 224 of the second hydraulic cylinder 222 is integrally coupled to the support die 226, The gap between the upper and lower cooling plates 210 'and 210 "is narrowed to press the upper and lower surfaces of the semi-finished fiberboard material P that have reached between the upper and lower cooling plates 210' and 210 & Go ahead. In this case, the cold pressing is performed for about 3 minutes by using the cooled plate 100 cooled to a temperature of 25 DEG C or lower.

The conveying belt 300 is mounted on the conveying belt pulley 310 to rotate the conveying belt 310 in a trackless manner while driving a motor (not shown) To the cooling plate (110) and the cooling plate (210). Of course, the guide belt 400 provided on the upper side of the conveyance belt 300 is also mounted on the guide belt pulley 410 and driven by the motor to rotate the guide belt 400 in an infinite track manner, P to be stably transported.

The feed belt 300 and the guide belt 400 may be made of a rubber material, but they may be formed of plate-shaped steel plates. This is to make the surface of the conveying belt 300 and the guide belt 400 closely contact with the heating plate 110 and the cooling plate 210 when the gap between the heating plate 110 and the cooling plate 210 is narrowed to be.

If the above-described structure is placed on the plurality of conveying belts 300 in order by placing the half-finished fibrous sheet material P on the thermal and cooling pressurizing apparatuses 1, the conveying belt 300 can convey the half- (100) is heated to a temperature of about 170 DEG C to thermally compress the resin to melt the resins to be integrally bonded with the hemp fiber, and thereafter, the cooling plate (200) of the cooling press means And then cooled and cooled to a temperature of about 25 ° C or lower. Thus, the fiber plywood having improved strength and smooth surface is completed.

In this case, the produced fiber plywood can be manufactured in various thicknesses of, for example, 1 to 5 mm.

&Lt; Cutting (S5) >

The fiber plywood produced through the above step (S4) is cut to fit the application so that it can be used as a finishing material for walls, floors, furniture, etc. inside the building.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The scope of protection of the present invention should be construed under the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1: heat and cooling pressurizing device 100: hot pressing means
110: Heating plate 120: First power generating means
200: cooling press means 210: cooling plate
220: Second power generating means 300: Feed belt
400: Guide Belt P: Fiberboard

Claims

The fibers are mixed and rubbed with a mixture of PP, PP and PE in a predetermined weight ratio, and the fibers are separated one by one using a cardboard machine, A first step of fabricating a web, which is a thin paper-like fiber that is in parallel with a card shape;
A second step of laminating the webs in such a manner that the fiber directions of the webs intersect at right angles and pressing them with a punching machine to form a single semi-finished fibrous sheet material;
A hot press means 100 comprising a plurality of heating plates 110 arranged at upper and lower sides at predetermined intervals and having a first power generating means 120 for adjusting an interval between the heating plates 110; And a second power generating means (220) arranged side by side with the cooling plates (210) for adjusting the interval between the cooling plates (210) And a conveying belt 300 for sequentially conveying the semi-finished fiberboard material P placed between the heating plate 110 and the cooling plate 210 to the heating plate 110 and the cooling plate 210 And a third step of thermocompression-bonding and cooling-pressing a plurality of the semi-finished fibrous sheets with the thermal and cooling pressurizing device (1).

The method according to claim 1,
(PP), polypropylene (PP), and LMPP (Low-melting Polypropylene) are cut off before the first step, (15) to 25 parts by weight of polyethylene (PE) and 15 to 25 parts by weight of polyethylene (PE), and 35 to 50 parts by weight of the hemp fiber.

The method according to claim 1,
Wherein a guide belt (400) is further provided on the conveying belt (300).

The method according to claim 1,
In the third step, the thermocompression bonding is performed for 3 minutes by using a heating plate 110 heated to 170 DEG C so that the resins and hairs are integrally joined together,
Wherein the cold pressing is performed for 3 minutes by using a cooling plate (100) cooled to a temperature of 25 占 폚 or less.

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