KR0183985B1 - Woody board - Google Patents

Woody board Download PDF

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KR0183985B1
KR0183985B1 KR1019910009849A KR910009849A KR0183985B1 KR 0183985 B1 KR0183985 B1 KR 0183985B1 KR 1019910009849 A KR1019910009849 A KR 1019910009849A KR 910009849 A KR910009849 A KR 910009849A KR 0183985 B1 KR0183985 B1 KR 0183985B1
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wood
coniferous
board
thickness
plywood
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KR1019910009849A
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Korean (ko)
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KR920000447A (en
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유우쇼오 나까모도
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나까모도 도시오
가부시기 가이샤 쥬우껭 상교오
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/06—Making particle boards or fibreboards, with preformed covering layers, the particles or fibres being compressed with the layers to a board in one single pressing operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Laminated Bodies (AREA)

Abstract

침엽수 합판이나 침엽수 LVL의 목질기재의 한쪽면 또는 양면에 나나분말 또는 목질섬유 등의 목질재료에 접착제를 배합한 보오드 원료를 배치하고 열압 프레스 하여 일체적으로 성형하여서 되는 침엽수 목질재 및 그 제조방법.A coniferous wood material and method for manufacturing the coniferous wood material which is formed by integrally molding by placing a board raw material containing adhesives on wood material such as Nana powder or wood fiber on one side or both sides of coniferous plywood or coniferous LVL wood material.

Description

침엽수목질재의 제조방법Manufacturing method of coniferous wood

본 발명은 표면을 평활하게 한 침엽수 목질재료의 제조방법 및 침엽수 목질재료에 관한 것이다.The present invention relates to a method for producing a coniferous wood material having a smooth surface and to a coniferous wood material.

합판이나 LVL (LAMINATED VENEER LUMBER : 단판 적층재) 등을 침엽수 재료로 제조하는 경우 표면이 평활한 목질재는 얻기 어렵다. 이에 더하여 통상 침엽수재는 베니어판으로 하였을 때, 마디, 균열 등이 표면에 나타나게 되는 일이 많고 나왕(lauan) 등의 남양재와 같은 무결점의 것이 적기 때문이다.When manufacturing plywood or LVL (LAMINATED VENEER LUMBER) from softwood materials, it is difficult to obtain wood with a smooth surface. In addition, when the coniferous material is usually made of veneers, nodes, cracks, etc. are often displayed on the surface, and there are fewer defects such as Namyangjae, such as lauan.

침엽수재 중에서도 마디가 없는 양질의 원목도 있으나 그 양은 적고 원목 가격도 비싸다. 또 무결점의 것이었어도 침엽수재는 춘재부, 하재부 등 연경질이 있기 때문에 프레스 후의 압력 때문에 표면이 요철(,)로 되는 경우가 많다.Some softwoods have no bark, but the quantity is small and the price of the wood is expensive. In addition, even if it is flawless, the coniferous material is soft, such as the spring and the lower part. , In many cases).

그래서 이러한 결점의 해소책으로서 표면용 베니어판의 마디부분을 도려 내어 나무로 막아 메꾸는 펀칭법(punching method)이나, MDF[중(中) 비중 파이버 보오드]와 같은 표면평활재를 앞뒷면에 부착하는 방법이 연구되어 있으나 펀칭법에서는 나무로 막아 메꾼 자국이 보여서 외관상 좋지 않고, 더우기 표면에 얇은 화장지나 화장 베니어판을 2차 부착하였을 경우에도 막아 메꾼 나무의 자국이 화장 베니어판 등의 표면에 나타난다고 하는 불합리가 있었다. 또, MDF를 부착하는 방법에서는 통상 MDF는 얇게 하면 강도저하에 의한 파도치는 현상을 일으키기 때문에 3m/m 두께 이하에서는 생산할 수 없으므로 가장 얇은 3m/m 두께의 MDF를 첨부하여도 양면에서 MDF가 6m/m의 두께를 차지하기 때문에 합판으로 하였을 때의 두께에 비하여 강도저하를 일으킨다고 하는 문제가 있었다. 또 한쪽면 MDF 부착에서는 뒤틀림이 발생하는 등의 불합리한 점이 많았다.Therefore, as a countermeasure against this drawback, a punching method that cuts out the joints of the surface veneers and fills them with wood, or attaches a surface smoother such as MDF (medium gravity fiber board) to the front and back. However, the punching method shows that the wound marks are blocked by wood, which is not good in appearance. Moreover, even when a thin toilet paper or makeup veneer board is attached to the surface, the marks of the wound wood appear on the surface of the makeup veneer board. there was. In addition, in the method of attaching MDF, thinner MDF usually causes wave phenomenon due to reduced strength, so it cannot be produced below 3m / m thickness, so even if the thinnest Mm with 3m / m thickness is attached, the MDF is 6m / Since it occupies the thickness of m, there existed a problem that intensity | strength declines compared with the thickness when it is set as a plywood. Moreover, there were many unreasonable points, such as distortion, in one side MDF attachment.

본 발명은 침엽수재를 목질기재로 하여 표면이 평활하고 또한 뒤틀림이나 강도저하가 없는 침엽수 목질재 및 그 제조방법을 제공하고자 하는 것이다.The present invention is to provide a coniferous wood material having a smooth surface and no distortion or deterioration of strength by using the softwood material as a wood material and a method of manufacturing the same.

본 발명의 침엽수 목질재의 제조방법은 목질섬유 등의 목질재료에 접착제를 혼합한 보오드 원료를 합판, LVL 등의 목질기재의 적어도 한쪽면에 적층하는 것을 특징으로 하는 것이다.The manufacturing method of the coniferous wood material of this invention is characterized by laminating the board | substrate raw material which mixed the adhesive material with wood materials, such as wood fiber, on at least one side of wood materials, such as plywood and LVL.

보오드 원료를 목질기재의 표면에 적층하는 방법으로서는 보오드 원료를 목질기재의 적어도 한쪽면에 재치하여 열압 프레스하는 방법에 의하여 실행한다. 열압 프레스법으로서는 평판 열압 프레스라도 좋고, 또 로울러 열압 프레스법에 의하여도 좋다.As a method of laminating a board | substrate raw material on the surface of a wood base material, it carries out by the method of placing a board | substrate raw material on at least one side of a wood base material and carrying out a hot press. The hot pressing method may be a flat plate pressing or a roller hot pressing.

가열방법은 가열한 가압평판 또는 로울러를 사용하여 가열압축하여도 좋고, 또 가열증기를 보오드 원료에 분무하면서 실행하여도 좋고, 더우기 미리 가열한 보오드 원료를 목질기재에 공급하여 가압하도록 하여도 좋다.The heating method may be performed by heat compression using a heated pressurized plate or roller, may be carried out while spraying heated steam onto the raw material of the board, and may further be supplied to pressurize the raw material of the heated raw material to the wood base material.

본 발명에 있어서 목질섬유 등의 목질재료에 접착제는 혼합한 보오드 원료라 함은 특히 보수용(補修用)으로 준비한 것이라도 좋으나, 일반적으로 파아티클 보오드(particle board), 파이버 보오드용의 원료를 그대로 사용하여도 좋다. 따라서 목질재료로서는 목재를 칩(chip) 형상으로 작게 파쇄한 것, 작은 칩 보오드, 더우기 이것들을 가압한 것, 목재를 부드럽게 하여 섬유상으로 한 것 등을 사용할 수 있다. 이것들은 목적으로 하는 평활한 정도에 따라서 그 입자의 크기가 정하여져서 적당히 선택사용할 수 있다.In the present invention, a board material in which an adhesive is mixed with wood materials such as wood fibers may be prepared especially for repair, but generally, materials for particle board and fiber board are used as they are. You may use it. Therefore, as the wood material, a small crushed wood in a chip shape, a small chip board, a pressurized one of them, a softened wood into a fibrous form, and the like can be used. These particles are sized according to the desired level of smoothness and can be appropriately selected and used.

최근 중비중 파이버 보오드(MDF)가 합판에 가까운 성상을 지닌 것으로서 주목되고 있으나, 이러한 원료는 목질섬유가 가늘고 그 만큼 평활성을 얻을 수 있으므로 그 원료를 사용하는 것은 바람직하다.Recently, it has been noted that the medium-weight fiber board (MDF) has a property close to the plywood, but such a raw material is preferably used because the wood fiber is thin and smoothness can be obtained.

목질재료에 배합하는 접착제로서는 보오드 원료를 열압 프레스로 적층하기 때문에 열 접착성 접착제가 사용되며, 페놀수지, 멜라민 수지 등이 사용된다. 멜라민 수지 접착제 등을 선택하면 적층된 보오드층의 내수성도 향상한다. 적층시에는 이 보오드 원료를 필요에 따라서 증감함으로써 목질기재의 표면의 마디구멍 등의 결점을 막음과 동시에 기재표면 전체면에 평활한 면을 형성할 수 있다. 보오드층의 형성은 기재의 결점의 보충과 전체면의 평활을 얻을 수 있으면 되므로 가급적 엷은 편이 좋고 통상의 합판에서는 1-2m/m 정도까지로 하는 것이 좋다.As an adhesive compounded to wood materials, a heat-adhesive adhesive is used because a board | substrate raw material is laminated | stacked by a hot press, and a phenol resin, melamine resin, etc. are used. Selecting a melamine resin adhesive or the like also improves the water resistance of the laminated board layer. At the time of lamination, by increasing or decreasing this board raw material as needed, it is possible to prevent defects such as nodal holes on the surface of the wood substrate and to form a smooth surface on the entire surface of the base material. Formation of the board layer should be made as thin as possible, since it is necessary to make up for the defects of the base material and smooth the entire surface, and in general plywood, it is preferable to set it to about 1-2 m / m.

또, 보오드층의 형성은 목질기재의 양면에 같은 두께로 한 것이 균형상 바람직하지만 본 발명의 경우는 기재의 두께에 비하여 극히 엷게 적층할 수도 있으므로, 한쪽면만이라도 뒤틀림을 일으키지 않을 정도로 조정할 수 있다.In addition, although it is preferable to balance the formation of the board | substrate with the same thickness on both surfaces of a wood base material, in the case of this invention, since it can laminate very thinly compared with the thickness of a base material, it can adjust so that only one side may not produce distortion.

목질기재는 특히 한정되는 것은 아니나 본 발명의 목적으로부터 침엽수 합판, 침엽수 LVL인 것이 바람직하고, 접착제를 도포하여 적층한 침엽수 합판용 혹은 침엽수 LVL용의 적층물을 사용하는 것이 좋다.Although a wood base material is not specifically limited, From the objective of this invention, it is preferable that it is a coniferous plywood and coniferous LVL, It is good to use the laminated body for coniferous plywood or coniferous LVL laminated | stacked by apply | coating an adhesive agent.

목질기재는 합판 LVL 집성재 (集成材) 등으로 우선 열압 프레스하여 한장의 판(board)으로 되어 있어도 좋고 열압 프레스 전의 냉압 프레스시의 상태이더라도, 혹은 냉압 전의 접착제가 도포된 베니어판, 라미나(lamina) 등을 적층한 상태에서 보오드 원료를 재치하여 열압 프레스하여도 좋다.The wood base material may be first pressed by plywood LVL aggregates or the like into a single board, or in the state of cold press before the hot press, or by veneer or lamina coated with adhesive before cold press. Board | substrate raw materials may be mounted and thermo-pressurized in the state which laminated | stacked).

MDF는 앞에서 설명한 바와 같이 보오드만을 형성하면 강도가 저하하여 뒤틀림이 커지므로 큰 보오드를 만들 수 없고, 또 파도와 같이 기복의 현상이 나타나기 쉬우므로 통상 3m/m 두께까지로 되어 있다. 따라서 MDF의 맞붙임에 의하여 강도가 있는 엷은 목질재는 얻을 수 없으나 본 발명의 방법을 사용하면 목질기재의 표면에 보오드층을 형성하기 때문에 보오드층은 3m/m 두께 이하에서도 형성할 수 있다. 그러므로 표면이 평활하고 강도가 있는 목질재를 얻을 수 있다.As described above, when MDF forms only the board, the strength decreases and the warpage becomes large, so that a large board cannot be formed, and since the phenomenon of ups and downs is likely to occur like waves, the MDF is usually up to 3 m / m thick. Therefore, a thin wood material with strength cannot be obtained by bonding MDF, but the board layer can be formed even at a thickness of 3 m / m or less because the method of the present invention forms a board layer on the surface of the wood substrate. Therefore, a wood material having a smooth surface and high strength can be obtained.

또, 본 발명의 경우는 보오드 원료를 목질기재에 극히 엷게 재치할 수 있으므로 한쪽면에 재치이더라도 뒤틀림을 일으키지 않을 정도로 조정할 수 있는 잇점이 있다.In addition, in the case of the present invention, since the raw material of the board can be placed very thinly on the wood substrate, even if it is placed on one side, it can be adjusted to such an extent that it does not cause distortion.

다음에 본 발명을 실시예에 따라 설명하지만, 본 발명은 이들에만 한정되는 것은 아니다.Next, although an Example demonstrates this invention, this invention is not limited only to these.

[실시예 1]Example 1

2.5㎜ 두께의 미송 로우터리 베니어판(DOUGLASFIR ROTARY VENEER) 5 장을 그 섬유 방향으로 서로 직교시켜서 통상의 합판을 만드는 방법에 따라 멜라민 수지 접착제를 도포하고, 냉압 프레스 하여 목질기재를 제작하였다. 이때, 기재표면의 베니어판에는 직경 약 35m/m 정도의 마디구멍이 1,850 ×980m/m 의 크기의 면에 25개 존재하고 있었다.Five sheets of DOUGLASFIR ROTARY VENEER with a thickness of 2.5 mm were orthogonal to each other in the fiber direction, and a melamine resin adhesive was applied and cold-pressed to produce a wood substrate according to a conventional plywood manufacturing method. At this time, 25 nodal holes about 35 m / m in diameter were present in the surface of the 1,850 * 980 m / m size in the veneer board of the base material surface.

한편 미송을 미세한 분말로 하여 멜라민 수지 접착제를 12％ 분무 혼합한 MDF 원료(보오드 원료)를 철판 위에 15m/m 두께로 재치하고, 우선 냉압 프레스한 합판을 재치함과 동시에 다시금 상부에 보오드 원료를 15m/m 두께로 재치하였다.On the other hand, MDF raw material (Board raw material) which sprayed and mixed melamine resin adhesive 12% with fine powder as fine powder is placed on the iron plate to 15m / m thickness, and the cold press pressed plywood is placed again, and the board raw material is 15m on top again. / m thickness was mounted.

이와 같이 쌓여서 겹친 것을 열 프레스에 삽입하여 130℃, 12kg/㎡에서 10분간 열압 프레스 하였던 바, 표리에 1m/m 두께의 보오드층을 지닌 표면이 평활한 14.5 m/m 두께의 목질재를 얻을 수 있었다.The stacked and stacked layers were inserted into a hot press and hot pressed at 130 ° C. and 12 kg / m 2 for 10 minutes. As a result, a surface of 14.5 m / m thick wood with a 1 m / m thick board layer on the front and back was obtained. there was.

이 목질재의 표면에 0.6m/m 두께의 미송화장 베니어판을 부착하였던 바 극히 표면이 평평(flat)한 완성의 화장합판을 얻을 수 있었다.A 0.6 m / m thick non-concrete veneer board was attached to the surface of the wood material, and thus a finished cosmetic plywood with a very flat surface was obtained.

[실시예 2]Example 2

실시예 1 과 마찬가지 방법으로 보오드 원료의 재치를 한쪽면에만 하여 프레스하였던 바, 목질기재의 한쪽면이 평활한 목질재를 얻을 수 있었다.When the board | substrate of a board | substrate raw material was pressed in only one side by the method similar to Example 1, the wood material which one side of the wood base material was smooth was obtained.

수득한 목질재에는 길이 1,850 m/m 에 대하여 뒤틀림의 휨의 높이 1.5m/m의 평활면이 볼록하게 된 뒤틀림이 발생하였다.In the obtained wood material, the distortion which the convex smooth surface of 1.5 m / m in height of the warpage of the warpage generate | occur | produced with respect to length 1,850 m / m generate | occur | produced.

그러나 이 정도의 뒤틀림은 실용상 하등 지장이 있는 것은 아니라고 종래부터 인정되어 있는 만큼 제품규격은 합격이였다.However, as this distortion is not practically impaired in practical use, the product standard was accepted as it is conventionally recognized.

[비교예 1]Comparative Example 1

실시예 1 에서 미송 로우터리 베니어판의 두께 2.5m/m를 1.7m/m로 하고 마찬가지로 적층하여 기재를 작성하여, 이 기재의 양면에 보오드 원료 대신애 3m/m 두께의 MDF를 재치하고 마찬가지 작업을 하여 실시예 1과 같은 두께의 목질재를 작성하였다.In Example 1, the thickness of 2.5 m / m of the unconveyed rotary veneer board was set to 1.7 m / m, and the substrates were laminated in the same manner. A substrate was placed on both sides of the substrate and a 3 m / m thick MDF was placed instead of the raw material. To prepare a wood material having the same thickness as in Example 1.

수득한 목질재는 두께의 비율에 따라 강도가 낮아서 실용적이 아니었다. 그 결과를 다음 표에 나타내었다.The wood material obtained was not practical because of its low strength depending on the ratio of the thickness. The results are shown in the following table.

[비교예 2]Comparative Example 2

비교예 1에 있어서 MDF를 한쪽면에만 하여 프레스하였던 바 표면은 평활한 면을 얻을 수 있었으나 1,850m/m의 길이방향에 대하여 뒤틀림의 휨의 높이 13m/m의 MDF 측을 볼록하게 하는 뒤틀림을 발생하였다. 이것은 뒤틀림이 커서 실용할 수 없었다.In Comparative Example 1, when the MDF was pressed on only one side, the surface of the bar was obtained with a smooth surface, but the warpage caused the convexity of the MDF side having a height of 13 m / m of warpage in the longitudinal direction of 1,850 m / m. It was. This was not practical because of its large distortion.

[비교예 3]Comparative Example 3

실시예 1에서 미송 로우터리 베니어판의 두께 2.5m/m를 2.9m/m로 하고, 보오드 원료를 사용하지 않고 침엽수재만의 합판을 사용하여 실시예 1과 대략 마찬가지 두께의 화장합판을 제작하였다. 수득된 화장합판은 마디 균열 등이 많고 외관상으로 불합격이였다.In Example 1, the thickness of 2.5 m / m of the unconsumed rotary veneer board was 2.9 m / m, and a plywood of approximately the same thickness as in Example 1 was produced using plywood only of coniferous material without using a board material. The obtained plywood had many cracks and the like and failed in appearance.

실시예 1 및 비교예의 결과를 종합하여 나타내면 다음 표와 같다.The result of Example 1 and the comparative example is put together, and it is as follows.

주해 : 뒤틀림의 휨의 높이라 함은 길이 1,850m/m에 대한 중앙 화살표의 뒤틀NOTE: The height of the warpage of warpage is the warp of the center arrow for length 1850 m / m.

림의 높이Height of rim

실시예의 결과로부터 명백한 바와 같이 본 발명의 방법에 의하면 외관의 평활성은 물론, 강도저하를 일으키지 않고 뒤틀림이 적은 목질재 및 화장판을 제작할 수 있는 유익한 것이다.As is apparent from the results of the examples, the method of the present invention is advantageous in that it is possible to produce wood materials and decorative plates having less warpage as well as smoothness of appearance, without causing a decrease in strength.

Claims (3)

중비중 파이버 보오드(MDF) 제조용의 목질섬유와 접착제를 혼합한 보오드 원료를 두께 2.5㎜의 침엽수 단판(單板) 5매를 적층해서 된 침엽수 합판 또는 침엽수 LVL의 목질기재의 적어도 한쪽면에 재치하고, 열압 프레스하여서 된, 목질기재상에 1∼3㎜ 두께의 목질 섬유층이 형성된 목질재로서 길이 1850㎜, 폭 980㎜에서의 뒤틀림의 휨의 높이가 1.5㎜ 이하인 것을 특징으로 하는 침엽수 목질재의 제조방법.Board raw material mixed with wood fiber and adhesive for manufacturing medium-weight fiber board (MDF) is placed on at least one side of conifer plywood or coniferous LVL wood material by laminating five sheets of coniferous veneer with a thickness of 2.5 mm A method for producing a coniferous wood material, characterized in that a wood fiber layer having a thickness of 1 to 3 mm is formed on a wood base material by hot pressing, and the height of warpage of warping at a length of 1850 mm and a width of 980 mm is 1.5 mm or less. . 제1항에 있어서, 적층하는 침엽수 단판의 사이에 접착제를 도포하고, 보오드 원료의 열압 프레스와 동시에 목질기재를 적층하는 것을 특징으로 하는 침엽수 목질재의 제조방법.The method for producing a coniferous wood material according to claim 1, wherein an adhesive is applied between the coniferous end plates to be laminated, and the wood material is laminated at the same time as the hot press of the board material. 중비중 파이버 보오드 제조용의 목질섬유와 접착제를 혼합한 보오드 원료를 두께 2.5㎜의 침엽수 단판 5매를 적층해서 된 침엽수 합판 또는 침엽수 LVL의 목질기재의 적어도 한쪽면에 열압 프레스하여 1∼3㎜ 두께의 목질 섬유층을 형성해서 된 목질재로서, 길이 1850㎜, 폭 980㎜ 에서의 뒤틀림의 휨의 높이가 1.5㎜ 이하인 것을 특징으로 하는 침엽수 목질재.The board raw material which mixed wood fiber and adhesive for heavyweight fiber board manufacturing was heat-pressed and pressed to at least one side of the coniferous plywood or the coniferous LVL wood base material which laminated 5 sheets of coniferous single board of thickness 2.5mm, and is 1-3mm thick. A wood material formed by forming a wood fiber layer, wherein the height of warpage of warping in a length of 1850 mm and a width of 980 mm is 1.5 mm or less.
KR1019910009849A 1990-06-19 1991-06-14 Woody board KR0183985B1 (en)

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CA2044865A1 (en) 1991-12-20
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DE69131547D1 (en) 1999-09-30
DE69131547T2 (en) 2000-01-13

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