JP3179639B2 - Method of manufacturing wooden veneer - Google Patents
Method of manufacturing wooden veneerInfo
- Publication number
- JP3179639B2 JP3179639B2 JP26791293A JP26791293A JP3179639B2 JP 3179639 B2 JP3179639 B2 JP 3179639B2 JP 26791293 A JP26791293 A JP 26791293A JP 26791293 A JP26791293 A JP 26791293A JP 3179639 B2 JP3179639 B2 JP 3179639B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- decorative material
- board
- veneer
- decorative
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims description 30
- 239000002023 wood Substances 0.000 claims description 18
- 229920002522 Wood fibre Polymers 0.000 claims description 9
- 239000002025 wood fiber Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000003825 pressing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011120 plywood Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- HNPDNOZNULJJDL-UHFFFAOYSA-N ethyl n-ethenylcarbamate Chemical compound CCOC(=O)NC=C HNPDNOZNULJJDL-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000549546 Fraxinus spaethiana Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Landscapes
- Finished Plywoods (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Laminated Bodies (AREA)
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 producing a decorative wooden board having a deep woody appearance on the 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, in the production of this type of wood decorative board, especially when a veneer is bonded and integrated to the surface of a wood fiber board, heat and pressure conditions are 100 to 110 ° C. and 4 to 5 kg.
/ Cm 2 , hot-press for 20 minutes, heat drying at the same time to reduce the moisture content of the surface decorative material to almost completely dry (4% or less), and by utilizing the shrinkage phenomenon due to dehumidification of the surface decorative material There has been obtained a surface decorative material having a deep wooden texture with a deep surface due to the conduit grooves approaching each other.
【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 of manufacturing a wooden decorative board, the surface decorative material is heated and dried using a hot press until the surface decorative material is almost completely dry. It must be adhered to a wood substrate (such as plywood) in the next step while being heated. At this time, the adhesive is over-dried due to the high heat, which causes poor adhesion. Further, if the surface decorative material is left to remove heat, it is difficult to keep the surface decorative material in a completely dry state due to a moisture absorption phenomenon, and the problem that the water content increases again has occurred. .
【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。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. That is, in a method for manufacturing a decorative wood board in which a veneer is bonded to a top surface of a wood substrate via a wood fiber board, a veneer is bonded and integrated to an upper surface of the wood fiber board to form a surface decorative material first, and then to a surface. In order to bring out the deep wood texture of the horizon, this surface decorative material is vacuum-heated by high-frequency heating using a high-frequency, vacuum vacuum dryer so as to reduce the water content to almost completely dry (preferably 4% or less). This is a method for producing a decorative wooden board, comprising drying, cooling under reduced pressure, and then bonding and integrating the surface decorative material to a wooden 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, and the like, and the wood fiber board may have a thickness of, for example, 2.7 to 5 m.
m hardboard, semi-hardboard (medium specific gravity fiberboard,
Abbreviated as MDF) and the like, but MDF having a thickness of 2.7 to 5 mm is particularly preferable. Examples of the surface veneer include oak materials, drill materials, ash materials, shioji materials, and the like having a thickness of 0.2 to 0.7 mm, and in particular, oval materials such as oak materials in which conduit grooves clearly appear. Is preferred. Regarding the wood grain of the veneer, a straight grain or a wood grain in which a conduit groove is likely to appear is effective for giving a wood texture with a deep surface horizon targeted by the present invention, and a wood 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 aqueous 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 board. For example, there are a urea-melamine co-condensation resin adhesive, a phenolic resin adhesive, and an aqueous vinyl urethane resin adhesive.
【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。According to the present invention, when the surface decorative material formed by bonding and integrating the veneer and the wood fiber board is subjected to high-frequency heating and drying in a vacuum state to be in a completely dry state having a water content of 4% or less, A contraction phenomenon due to moisture release occurs, and the conduit grooves of the surface veneer approach each other. Therefore, it is possible to give a deep wood texture to the surface in appearance. In addition, since the surface decorative material is dried by the vacuum drying, the boiling point is reached at a relatively low temperature of 55 ° C., the moisture in the wood. Therefore, the pressure reduction and cooling of the surface decorative material performed in the post-process are easy, and the temperature of the surface decorative material is returned to the normal temperature at which 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。Embodiments of the present invention will be described below in detail. First
2.7mm thick, 300mm wide, 600mm long
MDF with 0.3 mm thickness and 300 mm width by interposing a urea-melamine co-condensation resin adhesive on the upper surface of MDF
A plate with a thickness of 600 mm and a length of 600 mm is laminated and adhered, and cured and integrated. The thermal pressing conditions at this time were as follows: temperature 115 ° C.
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 pieces of the above-mentioned surface decorative materials are simultaneously laminated and placed in a high-frequency / vacuum vacuum dryer, and these surface decorative materials are vacuum-dried to a completely dry state having a water content of 4% or less for 12 hours. At this time, the water in the wood reaches the boiling point at 55 ° C. Thereafter, the pressure is reduced and cooled in the dryer, and the surface decorative material is cooled to room temperature in the next step while keeping the surface decorative material in a completely dry state so as to prevent adhesion failure in the next step. The surface of this surface cosmetic material is
Due to the shrinkage, the conduit grooves on the veneer surface come close to each other, giving the appearance of a deep woody appearance.
【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 to a plywood substrate having a thickness of 9 mm, a width of 300 mm and a length of 600 mm with an aqueous adhesive interposed therebetween. The adhesive to be used is an aqueous vinyl urethane resin adhesive, and the pressing conditions are as follows: a pressing pressure of 7 kg / cm 2 at normal temperature (cold pressure);
The pressing time is 30 minutes, and then the heat pressure is increased to 110 ° C.
The pressing is performed under the conditions of a 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 manner, a wooden decorative board having a deep woody appearance on the surface was obtained. Note that a transparent overcoat layer of a polyester resin or a 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。According to the present invention, as described in detail in the embodiments, it is possible to form a decorative wooden board exhibiting 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 decorative wood board in which a veneer is bonded to an upper surface of a wood substrate with a wood fiber board interposed therebetween, wherein a veneer is bonded and integrated to the upper surface of the wood fiber board to form a surface decorative material; Next, in order to bring out the deep wood texture of the surface, the surface decorative material is vacuum-dried at a high frequency so as to be lowered to a completely dry state or a state close to the dry state. A method for producing a decorative wooden board, comprising: bonding a material to a wooden substrate by bonding.
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 JPH07100806A (en) | 1995-04-18 |
| JP3179639B2 true 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 |
|---|---|---|---|---|
| JP2016131806A (en) * | 2015-01-21 | 2016-07-25 | 株式会社グレース | Paste treatment tool |
Families Citing this family (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 |
-
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 |
|---|---|---|---|---|
| JP2016131806A (en) * | 2015-01-21 | 2016-07-25 | 株式会社グレース | Paste treatment tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07100806A (en) | 1995-04-18 |
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Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010321 |
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