JPH07100806A - Manufacture of woody decorative laminated board - Google Patents
Manufacture of woody decorative laminated boardInfo
- Publication number
- JPH07100806A JPH07100806A JP26791293A JP26791293A JPH07100806A JP H07100806 A JPH07100806 A JP H07100806A JP 26791293 A JP26791293 A JP 26791293A JP 26791293 A JP26791293 A JP 26791293A JP H07100806 A JPH07100806 A JP H07100806A
- Authority
- JP
- Japan
- Prior art keywords
- board
- decorative material
- woody
- wood
- veneer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Finished Plywoods (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、表面にホリの深い木質
感を現出させた木質化粧板の製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a wooden decorative board which has a deep wooden texture on its surface.
【０００２】[0002]
【従来の技術】従来、この種の木質化粧板を製造するに
あたり、とりわけ木質繊維板の表面に突板を接着一体化
させるときに、熱圧条件１００〜１１０℃、４〜５ｋｇ
／ｃｍ2 、２０分でホットプレスにかけ、同時に加熱乾
燥させて表面化粧材の含水率をほぼ絶乾状態（４％以
下）まで下げて、表面化粧材の脱湿による収縮現象を利
用することにより相互に導管溝が寄って表面がホリの深
い木質感を有する表面化粧材を得ていた。2. Description of the Related Art Conventionally, when manufacturing a wood-made decorative board of this kind, especially when a veneer is bonded and integrated with the surface of a wood fiber board, a heat and pressure condition of 100 to 110 ° C. and 4 to 5 kg are used.
/ Cm subjected to hot press at 2, 20 minutes, down to almost absolute dry condition (less than 4%) water content of the surface decorative material dried by heating at the same time, by utilizing the shrinkage phenomenon by dehumidification of surface decorative material A surface decorative material having a woody texture with a deep horizon due to the conduit grooves being close to each other was obtained.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の木質化粧板
を製造する方法においては、表面化粧材をほぼ絶乾状態
までホットプレスを用いて加熱乾燥させているため、こ
の表面化粧材が高温で熱を帯びたまま次工程の木質基板
（合板など）に接着しなければならず、このとき、上記
高熱によって接着剤が過乾燥を起こし、接着不良の原因
となっていた。また、上記表面化粧材の熱を除去するた
めに放置しておくと、吸湿現象によって表面化粧材の絶
乾状態を保っておくことは困難で、再び含水率が上がる
という問題が発生していた。In the above-mentioned conventional method for producing a wooden decorative board, since the surface decorative material is heated and dried by using a hot press until it is almost dry, the surface decorative material is heated at a high temperature. It must be adhered to a wood substrate (plywood or the like) in the next step while still being heated, and at this time, the adhesive was overdried due to the high heat, resulting in adhesion failure. Further, if the surface decorative material is left to remove heat, it is difficult to keep the surface decorative material in an absolutely dry state due to a moisture absorption phenomenon, which causes a problem that the water content increases again. .
【０００４】[0004]
【課題を解決するための手段】本発明は、上記課題を解
決するためになされたものである。すなわち、木質基板
の上面に木質繊維板を介して突板を接着する木質化粧板
の製造方法において、上記木質繊維板の上面に突板を接
着一体化させて表面化粧材をまず形成し、次いで表面に
ホリの深い木質感を現出させるためにこの表面化粧材
を、高周波・真空減圧乾燥機を用いてほぼ絶乾状態（好
ましくは含水率４％以下）まで含水率が下がるように高
周波加熱で真空乾燥した後、減圧冷却し、次いでこの表
面化粧材を木質基板に接着一体化させることを特徴とす
る木質化粧板の製造方法である。The present invention has been made to solve the above problems. That is, in the method for producing a wood decorative board in which the veneer is bonded to the upper surface of the wooden board through the wood fiber board, the veneer is bonded and integrated to the upper surface of the wood fiber board to form the surface decorative material first, and then to the surface. In order to bring out the deep texture of wood, this surface decorative material is vacuum-heated by high frequency heating using a high frequency vacuum decompression dryer so that the moisture content decreases to almost dry state (preferably 4% or less of moisture content). A method of manufacturing a wood decorative board, which comprises drying, cooling under reduced pressure, and then adhering and integrating the surface decorative material with the wood substrate.
【０００５】本発明に係る木質基板としては、例えば厚
さ９〜１２ｍｍの合板、平行合板、チップボ−ド等が考
えられ、木質繊維板としては、例えば厚さ２．７〜５ｍ
ｍのハ−ドボ−ド、セミハ−ドボ−ド（中比重繊維板、
略してＭＤＦとも呼ぶ）等が考えられるが、とりわけ厚
さ２．７〜５ｍｍのＭＤＦが好ましい。また、表面の突
板としては、厚さ０．２〜０．７ｍｍのナラ材、キリ
材、タモ材、シオジ材などが挙げられ、とりわけ導管溝
がはっきりと現出するナラ材等の環孔材が好ましい。上
記突板の木目については、導管溝が現出しやすい柾目や
板目が本発明の狙いとする表面ホリの深い木質感をもた
せるために有効であり、とりわけ板目が適している。The wood substrate according to the present invention may be, for example, a plywood having a thickness of 9 to 12 mm, a parallel plywood, a chip board, or the like, and the wood fiber board may have a thickness of 2.7 to 5 m.
m hardboard, semi-hardboard (medium specific gravity fiberboard,
Although it may be abbreviated as MDF) or the like, an MDF having a thickness of 2.7 to 5 mm is particularly preferable. Moreover, as the veneer on the surface, there can be mentioned, for example, oak wood, perforated wood, taro wood, shioji wood, etc., having a thickness of 0.2 to 0.7 mm, and in particular an annular hole material such as oak wood in which the conduit groove clearly appears. Is preferred. Regarding the grain of the veneer plate, the grain and the grain of which the conduit groove is likely to appear are effective for giving the deep texture of the surface, which is the aim of the present invention, and the grain is particularly suitable.
【０００６】本発明において、表面の突板と木質繊維
板、および木質繊維板と木質基板の接着に、一般の水性
木質系接着剤が用いられる。例えば、ユリア・メラミン
共縮合樹脂接着剤、フェノ−ル系樹脂接着剤あるいは水
性ビニ−ルウレタン樹脂接着剤がある。In the present invention, a general water-based wood-based adhesive is used for bonding the veneer on the surface to the wood fiber board and the wood fiber board to the wood substrate. For example, there are urea-melamine co-condensed resin adhesives, phenolic resin adhesives and water-based vinyl urethane resin adhesives.
【０００７】[0007]
【作用】本発明のうち、突板と木質繊維板を接着一体化
して形成された表面化粧材を、真空状態で高周波加熱乾
燥を起こし含水率４％以下の絶乾状態にすると、表面化
粧材の放湿による収縮現象が起こり表面突板の導管溝が
相互に寄り合う。したがって、外観上表面にホリの深い
木質感をもたせることができる。また、上記真空乾燥で
表面化粧材を乾燥させるため、木材中の水分５５℃の比
較的低温で沸点を迎える。したがって、後工程で行われ
る上記表面化粧材の減圧・冷却は容易で、短時間に基板
との接着可能な常温にもどることになる。In the present invention, when the surface decorative material formed by integrally bonding the veneer and the wood fiber board is subjected to high-frequency heating and drying in a vacuum state to an absolute dry condition with a water content of 4% or less, the surface decorative material is A contraction phenomenon due to moisture release occurs, and the conduit grooves of the surface veneer plate approach each other. Therefore, it is possible to give the surface a wooden texture with a deep tension. Further, since the surface decorative material is dried by the above vacuum drying, the boiling point is reached at a relatively low temperature of 55 ° C. of water in the wood. Therefore, it is easy to reduce the pressure and cool the surface decorative material in a later step, and the temperature returns to room temperature where it can be bonded to the substrate in a short time.
【０００８】[0008]
【実施例】以下、本発明の実施例を詳しく述べる。第１
工程として厚さ２．７ｍｍ、幅３００ｍｍ、長さ６００
ｍｍのＭＤＦの上面にユリア・メラミン共縮合樹脂接着
剤を介在させてミズナラ材の厚さ０．３ｍｍ、幅３００
ｍｍ、長さ６００ｍｍの板目突板を積層接着し、硬化一
体化させる。このときの熱圧締条件は、温度１１５℃、
圧締圧力４〜５ｋｇ／ｃｍ2 、圧締時間２分である。こ
のようにして５０枚の突板とＭＤＦで構成された表面化
粧材が形成される。EXAMPLES Examples of the present invention will be described in detail below. First
As a process, thickness 2.7mm, width 300mm, length 600
0.3mm thick and 300mm wide with a urea / melamine co-condensation resin adhesive on the top surface of MDF
mm and 600 mm in length are laminated and adhered, and they are cured and integrated. The thermal compression conditions at this time are as follows:
The pressing pressure is 4 to 5 kg / cm 2 , and the pressing time is 2 minutes. In this way, a surface decorative material composed of 50 veneers and MDF is formed.
【０００９】第２工程として上記表面化粧材５０枚を高
周波・真空減圧乾燥機内に同時に積層して入れて、これ
ら表面化粧材を含水率４％以下の絶乾状態まで１２時間
真空乾燥させる。このとき木材中の水分は５５℃で沸点
を迎える。その後、上記乾燥機内で減圧・冷却し、上記
表面化粧材を絶乾状態のまま次工程で接着不良を起こさ
ないように常温まで下げる。この表面化粧材の表面は、
収縮により突板表面の導管溝が相互に寄り合い、外観的
にホリの深い木質感を現出したものになっている。As a second step, 50 sheets of the above surface decorative material are simultaneously laminated and placed in a high-frequency / vacuum vacuum dryer, and these surface decorative materials are vacuum dried for 12 hours to an absolutely dry state with a water content of 4% or less. At this time, the water in the wood reaches a boiling point at 55 ° C. Then, the surface of the surface decorative material is cooled to a normal temperature in the next step so as not to cause adhesion failure in the next step while being dried in the dryer under reduced pressure and cooling. The surface of this surface decorative material is
Due to the contraction, the conduit grooves on the surface of the veneer lean toward each other, giving the appearance of a deep wooden texture.
【００１０】第３工程として上記表面化粧材を各々厚さ
９ｍｍ、幅３００ｍｍ、長さ６００ｍｍの合板基板に水
性接着剤を介在させて接着一体化する。用いる接着剤
は、水性ビニ−ルウレタン系樹脂接着剤で、圧締条件と
しては、まず常温（冷圧）で圧締圧力７ｋｇ／ｃｍ2 、
圧締時間３０分行ない、次いで、熱圧を温度１１０℃、
圧締圧力５ｋｇ／ｃｍ2 、時間２分の条件で行なう。As a third step, the surface decorative material is bonded and integrated with a plywood substrate each having a thickness of 9 mm, a width of 300 mm and a length of 600 mm with a water-based adhesive interposed. The adhesive used is a water-based vinyl urethane-based resin adhesive. The pressing conditions are as follows: room temperature (cold pressure), a pressing pressure of 7 kg / cm 2 ,
Clamping time is 30 minutes, then heat pressure is 110 ° C,
It is performed under the conditions of a clamping pressure of 5 kg / cm 2 and a time of 2 minutes.
【００１１】このようにして、表面にホリの深い木質感
を現出した木質化粧板を得た。なお、表面にポリエステ
ル樹脂やポリウレタン樹脂の透明な上塗り塗料層を形成
し、表面保護層としても良い。In this way, a wooden decorative board having a deep texture on the surface was obtained. A transparent topcoat paint layer of polyester resin or polyurethane resin may be formed on the surface to serve as a surface protective layer.
【００１２】[0012]
【発明の効果】本発明は、実施例でも詳しく説明したよ
うに、表面にホリの深い木質感、立体感を現出した木質
化粧板を形成できる。As described in detail in the examples, the present invention can form a wooden decorative board that has a deep wooden texture and a three-dimensional appearance on the surface.
Claims (1)
て突板を接着する木質化粧板の製造方法において、上記
木質繊維板の上面に突板を接着一体化させて表面化粧材
を形成し、次いで表面にホリの深い木質感を現出させる
ためにこの表面化粧材を、絶乾状態あるいはそれに近い
状態まで下がるように高周波で真空乾燥した後、上記状
態のまま減圧冷却し、次いでこの表面化粧材を木質基板
上に接着一体化させることを特徴とする木質化粧板の製
造方法。1. A method for manufacturing a wood decorative board in which a wood fiberboard is interposed on a top surface of a wood substrate to bond the veneer to a surface decorative material by bonding the veneer to the top surface of the wood fiberboard and integrally forming the surface decorative material, Next, in order to bring out a deep wooden texture on the surface, this surface decorative material is vacuum-dried with high frequency so as to drop to an absolutely dry state or a state close to it, and then cooled under reduced pressure in the above state, and then this surface makeup A method for manufacturing a wooden decorative board, which comprises integrally bonding a material onto a wooden substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26791293A JP3179639B2 (en) | 1993-09-30 | 1993-09-30 | Method of manufacturing wooden veneer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26791293A JP3179639B2 (en) | 1993-09-30 | 1993-09-30 | Method of manufacturing wooden veneer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07100806A true JPH07100806A (en) | 1995-04-18 |
| JP3179639B2 JP3179639B2 (en) | 2001-06-25 |
Family
ID=17451351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26791293A Expired - Fee Related JP3179639B2 (en) | 1993-09-30 | 1993-09-30 | Method of manufacturing wooden veneer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3179639B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965055A (en) * | 1990-03-27 | 1990-10-23 | The United States Of America As Represented By The Secretary Of The Navy | Preparation of ultra-pure metal halides |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6055493B2 (en) * | 2015-01-21 | 2016-12-27 | 株式会社グレース | Ear acupuncture patch treatment tool |
-
1993
- 1993-09-30 JP JP26791293A patent/JP3179639B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965055A (en) * | 1990-03-27 | 1990-10-23 | The United States Of America As Represented By The Secretary Of The Navy | Preparation of ultra-pure metal halides |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3179639B2 (en) | 2001-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010321 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |