JPH09267438A - Production of decorative panel - Google Patents
Production of decorative panelInfo
- Publication number
- JPH09267438A JPH09267438A JP8103988A JP10398896A JPH09267438A JP H09267438 A JPH09267438 A JP H09267438A JP 8103988 A JP8103988 A JP 8103988A JP 10398896 A JP10398896 A JP 10398896A JP H09267438 A JPH09267438 A JP H09267438A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- wood fiber
- medium
- density wood
- medium density
- 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.)
- Pending
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は地球環境に優しく且つ素
材的ども優れた建築材料を工業的に安価に供給する技術
に関し、更に詳しく言えば、中密度木質繊維基板又は中
密度木質繊維板を基板本体の表面に積層して形成した基
板の表面化粧を施すと同時に比重を余分に高くすること
なく、中密度木質繊維基板又は基板表面の中密度木質繊
維板層の耐水性能も向上させる事のできる製造方法に係
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for industrially inexpensively supplying a building material which is kind to the global environment and excellent in terms of materials, and more specifically, to a medium density wood fiber substrate or a medium density wood fiber board. It is also possible to improve the water resistance performance of the medium density wood fiber board or the medium density wood fiber board layer of the board surface without increasing the specific gravity at the same time as applying the surface makeup of the board formed by laminating on the surface of the board body. The present invention relates to a possible manufacturing method.
【０００２】[0002]
【従来の技術】中密度木質繊維基板の加工方法としては
在来より塗装による化粧板の製造が最も簡単であり且つ
よく行われているが、この際に水性塗料を用いること
は、“膨れ”“毛羽ち”などを生ずる原因となるので、
何らかの後加工を行わないと商品価値のあるものが得ら
れない。そのために水性塗料に代わって油性塗料が用い
られるのが―般的になったが、油性塗料に含まれる溶剤
の揮散が大気汚染に連なる危慎を含んでいる。又、中密
度木質繊維基板の表面の不均質をカバーするために化均
紙を貼ってその後に塗装する方法や、中密度木質繊維基
板の表面に凹凸を賦与してから塗装することも行われる
が、この場合も、膨れ、毛羽立ちなどの防止のため溶剤
型塗料や無溶剤型塗料（不飽和ポリエステル樹脂など）
でなければならなかった。2. Description of the Related Art As a method of processing a medium-density wood fiber substrate, it has been the simplest and well practiced to manufacture a decorative board by painting. However, the use of a water-based paint at this time causes "swelling". As it causes "fluff", etc.,
A product with commercial value cannot be obtained without some kind of post-processing. For this reason, it has become common to use oil-based paints instead of water-based paints, but there is a danger that volatilization of the solvent contained in oil-based paints will lead to air pollution. Further, in order to cover the non-uniformity of the surface of the medium-density wooden fiber substrate, a method of applying a chemical smoothing paper and then coating, or applying unevenness to the surface of the medium-density wooden fiber substrate before coating However, even in this case, solvent-based paint or solvent-free paint (unsaturated polyester resin, etc.) to prevent swelling and fuzzing
Had to be.
【０００３】しかもこれだけでは中密度木質繊維基板の
基本的欠点である耐水性の向上は望むことができず、建
材としての用途も限られてしまい、床材など材料として
は性能的に不十分であった。そのために浸透性の付加縮
合型樹脂液を中密度木質繊維基板に浸透させてから乾燥
し、加圧、加熱して加工する方法も提案されているが、
樹脂含量の部分的不均一が生じやすく。『そり』発生の
原因となり、しかもこれだけでは中密度木質繊維基板の
耐水性の改善がなされるだけで化粧処理を更に行わねば
ならず、１度の作業で化粧まで満足することができない
という問題点があった。Moreover, this alone cannot be expected to improve the water resistance, which is a basic drawback of the medium-density wood fiber substrate, and the use as a building material is limited, so that it is insufficient in performance as a material such as a floor material. there were. Therefore, a method of impregnating a permeable addition-condensation type resin liquid into a medium-density wood fiber substrate and then drying, pressurizing, and heating to process is also proposed,
Partial non-uniformity of resin content is likely to occur. The problem that "sledding" is caused, and moreover, the makeup resistance must be further improved only by improving the water resistance of the medium-density wood fiber substrate, which makes it impossible to satisfy the makeup even with one operation. was there.
【０００４】そこで中密度木質繊維基板に多量の液状樹
脂を含浸して硬化させた後に、化粧紙や化粧板を中密度
木質繊維基板の表面に接着したり、中密度木質繊維基板
に含浸した樹脂の硬化時に化粧板を接着することも提案
されている。これらの方法は中密度木質繊維基板の欠点
である耐水性の向上には役立つが、多量の樹脂含浸と貼
着された化粧紙や化粧板によって全体の比重が大となり
且つ作業も複雑になって高価になることは明白である。
さらに成形も化粧紙や化粧板を使用するために板状物の
エンボス加工程度に止まり加工性に乏しいというもので
あった。Therefore, after the medium density wood fiber substrate is impregnated with a large amount of liquid resin and cured, a decorative paper or a decorative board is adhered to the surface of the medium density wood fiber substrate, or the resin impregnated into the medium density wood fiber substrate is used. It has also been proposed to adhere a veneer when curing the. These methods are useful for improving water resistance, which is a drawback of the medium-density wood fiber substrate, but a large amount of resin impregnation and a decorative paper or veneer attached to the substrate increases the overall specific gravity and complicates the work. Obviously it will be expensive.
Further, the molding is limited to the degree of embossing of the plate-like material due to the use of the decorative paper or the decorative board, and the workability is poor.
【０００５】[0005]
【発明が解決しようとする課題】かかる現状技術の改良
を行うのが本発明の解決課題であるが、加えて本発明で
は表面エンボス加工程度の成形に止まらず、更に深絞り
製品の成形も行えるように加工の範囲を拡大しようとす
るものである。It is a problem to be solved by the present invention to improve the present state of the art. In addition, the present invention is not limited to surface embossing, and deep drawing products can be formed. Thus, it is intended to expand the range of processing.
【０００６】[0006]
【課題を解決するための手段】『請求項１』の化粧板
(A)の製造方法は『その全体或いはその表面部分が中密
度木質繊維板にて形成されている基板(2)の表面部分に
イソシアネート組成物を塗布して浸透させ、続いてイソ
シアネート組成物の塗布面に水性エマルジョン型塗料を
塗布した後、加熱・加圧して成形し、基板(2)の表面に
化粧層(1)を形成する』ことを特徴とする。[Means for Solving the Problems] A decorative plate according to claim 1.
The manufacturing method of (A) is, "The whole or its surface portion is formed by applying medium density wood fiber board to the surface portion of the substrate (2) is coated with an isocyanate composition to penetrate, then the isocyanate composition of After the aqueous emulsion type coating material is applied to the application surface, it is heated and pressed to form the decorative layer (1) on the surface of the substrate (2) ".
【０００７】中密度木質繊維基板(2)或いは基板(2)の中
密度木質繊維板層(2a)に水性エマルジョン型塗料を塗布
すると、その水分によって中密度木質繊維基板(2)或い
は中密度木質繊維板層(2a)が軟化して加工し易くなる。
更に、前記水分と中密度木質繊維基板(2)や中密度木質
繊維板層(2a)に含浸したイソシアネート組成物とが反応
して発泡硬化するので予備乾燥は短時間で済み、加工時
間が短縮出来る他、硬化完了後は発泡体で中密度木質繊
維基板(2)或いは中密度木質繊維板層(2a)の空隙部が充
填され且つ若干の膨潤も条件によっては行われるので、
比較的少量のイソシアネート組成物の使用で防水性能を
発揮させる事が出来るようになる。そして、塗装により
化粧層(1)が形成され防水と化粧作業が同時に完了す
る。When an aqueous emulsion type coating material is applied to the medium density wood fiber board (2) or the medium density wood fiber board layer (2a), the water content of the medium density wood fiber board (2) or medium density wood board The fiberboard layer (2a) softens and becomes easy to process.
Furthermore, since the moisture and the isocyanate composition impregnated in the medium-density wood fiber board (2) and the medium-density wood fiber board layer (2a) react and foam and harden, predrying can be completed in a short time, and the processing time can be shortened. Besides, it is possible to fill the voids of the medium-density wood fiber board (2) or the medium-density wood fiber board layer (2a) with a foam after the completion of curing, and some swelling is also performed depending on the conditions,
The waterproof performance can be exhibited by using a relatively small amount of the isocyanate composition. Then, the makeup layer (1) is formed by painting, and waterproofing and makeup work are completed at the same time.
【０００８】『請求項２』は請求項１の水性エマルジョ
ン型塗料を更に詳しくしたもので『水性エマルジョン型
塗料として、シリカ又はおよびアルミナの水性ゾルを必
須成分として含有する』ことを特徴とする。[0008] "Claim 2" is a more detailed version of the water-based emulsion type coating composition of claim 1 and is characterized in that "a water-based emulsion type coating material contains an aqueous sol of silica or alumina as an essential component".
【０００９】シリカ又はアルミナの水性ゾルは水性エマ
ルジョン型塗料に混入して使用する（図３参照）。シリ
カ又はアルミナが化粧層(1)に分散して沖粧層(1)を強化
すると共にその一部は化粧層(1)の表面に露出するの
で、化粧層(1)の硬さ、耐摩耗性、重ね塗装性を向上さ
せる事が出来る。An aqueous sol of silica or alumina is mixed with an aqueous emulsion type paint before use (see FIG. 3). Since silica or alumina disperses in the decorative layer (1) and strengthens the decorative layer (1) and part of it is exposed on the surface of the decorative layer (1), the hardness and wear resistance of the decorative layer (1) are improved. It is possible to improve the coating properties and recoatability.
【００１０】請求項３は、請求項１のイソシアネート組
成物を更に詳しくしたもので『イソシアネート組成物と
してエチレンオキサイド、プロピレンオキサイドのプレ
ポリマー、又はコプレポリマーとジイソシアネートを必
須成分とする』もので、イソシアネート組成物が水との
親和性え良好で且つ基板(2)を構成する中密度木質繊維
板或いは中密度木質繊維板層(2a)との親和性にも優れ、
硬化時に発泡して中密度木質繊維基板(2)又は中密度木
質繊維板層(2a)の空隙部を埋め且つ若干の膨潤性もあ
り、しかも中密度木質繊維基板(2)又は中密度木質繊維
板層(2a)に浸透させたときの反応性の調節も容易で、硬
化後は前記発泡によって木質繊維の空隙部を埋めるため
に中密度木質繊維基板(2)又は中密度木質繊維板層(2a)
の吸水による寸法変化に役立ち、煮沸耐水性のある製品
の供給を可納とするものである。A third aspect of the present invention is a more detailed version of the isocyanate composition of the first aspect, wherein "isocyanate composition contains ethylene oxide, propylene oxide prepolymer or coprepolymer and diisocyanate as essential components". The material has a good affinity with water and is also excellent in affinity with the medium-density wood fiber board or the medium-density wood fiber board layer (2a) constituting the substrate (2),
It foams during curing and fills the voids of the medium-density wood fiber board (2) or the medium-density wood fiber board layer (2a) and has some swelling property, and further, the medium-density wood fiber board (2) or the medium-density wood fiber. It is also easy to adjust the reactivity when the board layer (2a) is permeated, and after curing, the medium density wood fiber board (2) or the medium density wood fiber board layer (2) to fill the voids of the wood fibers by the foaming. 2a)
It helps the dimensional change due to water absorption, and makes it possible to supply products with boiling water resistance.
【００１１】[0011]
【実施例】以下、本発明を詳述する。本発明の基板(2)
の第１実施例は、図１に示すように、基板(2)全体が中
密度木質繊維板にて構成されている例であるが、図２に
示すように基板(2)が、基板本体(3)と中密度木質繊維板
層(2a)にて構成されるものであってもよく、この場合の
基板本体(3)としては、例えば合板、パーティクルボー
ド等の木質板の他、珪カル板、木質セメント板、比重が
０.５以上の鉱物質繊維板等の無機質板等各種のものを
使用する事が出来る。The present invention will be described below in detail. Substrate of the present invention (2)
In the first embodiment, as shown in FIG. 1, the entire substrate (2) is made of medium-density wood fiberboard. However, as shown in FIG. (3) and a medium-density wood fiberboard layer (2a) may be configured, and in this case, the substrate body (3) includes, for example, plywood, a wood board such as particle board, and a silica card. Various materials such as boards, wood cement boards, inorganic boards such as mineral fiber boards having a specific gravity of 0.5 or more can be used.
【００１２】本発明の第１は、水と反応して発泡硬化す
ることのできるイソシアネート組成物を中密度木質繊維
基板(2)或いは表面に中密度木質繊維板層(2a)を持つ基
板(2)に浸漬により、その全体から或いは塗布により塗
布面から内部に向けて中密度木質繊維基板(2)或いは中
密度木質繊維板層(2a)のほぼ全体に浸透させ、しかる
後、水性エマルジョン型塗料を片面（塗布面）に塗布
し、続いて、加圧、加熱して所定の形状に成形すると共
に硬化させる。これにより中密度木質繊維基板(2)或い
は中密度木質繊維板層(2a)の表面に化粧層(1)を形成す
る。A first aspect of the present invention is a medium density wood fiber substrate (2) or a substrate (2) having a medium density wood fiber board layer (2a) on the surface of an isocyanate composition capable of reacting with water to foam and cure. ), The entire surface of the medium density wood fiber board (2) or the medium density wood fiber board layer (2a) is infiltrated from the entire surface or from the coated surface to the inside by coating, and then an aqueous emulsion type coating material is applied. Is applied to one surface (application surface), and subsequently, it is pressed and heated to be molded into a predetermined shape and cured. As a result, the decorative layer (1) is formed on the surface of the medium density wood fiber board (2) or the medium density wood fiber board layer (2a).
【００１３】この第１発明では最初７〜８％の含水率で
あった中密度木質繊維基板(2)或いは中密度木質繊維板
層(2a)の含水率が、水性エマルジョン型塗料の水分を吸
収して容易に２０％程度以上とすることができ、これに
より中密度木質繊維基板(2)或いは中密度木質繊維板層
(2a)は軟化して加工し易くなり、且つイソシアネート組
成物も含浸されているために成形性に富み、中密度木質
繊維基板(2)或いは中密度木質繊維板層(2a)の表面のエ
ンボス加工は勿論のこと中密度木質繊維基板(2)の曲げ
加工や深絞りなど大きな変形を伴うような加工も容易と
なる。In the first invention, the water content of the medium-density wood fiber board (2) or the medium-density wood fiber board layer (2a), which initially had a water content of 7 to 8%, absorbed the water content of the aqueous emulsion type paint. The density can be easily increased to about 20% or more, and as a result, the medium density wood fiber board (2) or the medium density wood fiber board layer can be obtained.
(2a) is soft and easy to process, and is rich in moldability because it is also impregnated with an isocyanate composition, the medium density wood fiber substrate (2) or the medium density wood fiber board layer (2a) surface embossing Not only processing, but also processing such as bending and deep drawing of the medium-density wood fiber substrate (2) are facilitated.
【００１４】水性エマルジョン型塗料の水分は、中密度
木質繊維基板(2)或いは中密度木質繊維板層(2a)に含浸
させたイソシアネート組成物と反応してイソシアネート
組成物の発泡硬化にその一部が消費されるため、実際に
蒸発させるべき水分量は少なくなり、従って予備乾燥は
短時間で済む。The water content of the water-based emulsion type paint reacts with the isocyanate composition impregnated in the medium-density wood fiber board (2) or the medium-density wood fiber board layer (2a) to partially foam and cure the isocyanate composition. Is consumed, the actual amount of water to be evaporated is small, and thus the preliminary drying is short.
【００１５】硬化完了後はイソシアネート組成物の発泡
体で中密度木質繊維基板(2)或いは中密度木質繊維板層
(2a)の空隙部は充填され且つ若干の膨潤も条件によって
は行われるので、比較的少量のイソシアネート組成物の
使用で中密度木質繊維成形品はあまり高比重化すること
もなく耐水性の向上が図られ、これにより中密度木質繊
維板(2)或いは中密度木質繊維板層(2a)の吸水による寸
法変化も極めて小にすることが可能となる。そして、前
記水性エマルジョン型塗料により、基板(2)の表面化粧
がなされる。従って、硬化完了によって基板(2)の化粧
も完了する事になる。After the completion of curing, a medium density wood fiber substrate (2) or a medium density wood fiber board layer is formed with a foam of an isocyanate composition.
Since the voids of (2a) are filled and some swelling is also performed depending on the conditions, the use of a relatively small amount of the isocyanate composition does not increase the specific gravity of the medium-density wood fiber molded product so much that the water resistance is improved. As a result, the dimensional change due to water absorption of the medium density wood fiber board (2) or the medium density wood fiber board layer (2a) can be made extremely small. The surface of the substrate (2) is then made up with the water-based emulsion type paint. Therefore, when the curing is completed, the makeup of the substrate (2) is also completed.
【００１６】第２発明における水性エマルジョン型塗料
は、シリカ又はアルミナの水性ゾルを単独又は併用する
ことを必須要件とするもので（図３参照）、シリカ又は
アルミナが化粧層(1)に分散し、化粧層(1)の硬さ、耐摩
耗性、重ね塗装性を向上し、建材として床材などに使用
しても在来の製品と遜色のないものとする事ができる。The aqueous emulsion type coating material in the second aspect of the invention requires that an aqueous sol of silica or alumina is used alone or in combination (see FIG. 3), and silica or alumina is dispersed in the decorative layer (1). The decorative layer (1) has improved hardness, abrasion resistance, and recoatability, and can be used in the same way as conventional products when used as a flooring material as a building material.
【００１７】第３発明におけるイソシアネート組成物と
してはエチレンオキサイド又はプロピレンオキサイドの
プレポリマー又はコプレポリマーと、ジイソシアネート
とを必須成分とするもので、イソシアネート組成物は水
との親和性が良好で、且つ中密度木質繊維基板(2)又は
中密度木質繊維板層(2a)を構成する木質繊維との親和性
に優れ、発泡硬化して木質繊維の空隙部を埋め、且つ若
干の膨潤性もあり、木質繊維に浸透させたときの反応性
の調節も容易で、硬化後は前記発泡によって空隙部を埋
めるため木質繊維■吸水による寸法変化の抑制に役立
ち、煮沸耐水性のある製品の供給を可能とするものであ
る。The isocyanate composition in the third invention comprises an ethylene oxide or propylene oxide prepolymer or coprepolymer and diisocyanate as essential components. The isocyanate composition has a good affinity with water and a medium density. Wood fiber substrate (2) or medium density wood fiber board layer (2a) is excellent in affinity with wood fibers constituting, fills the voids of wood fibers by foaming and curing, and also has some swelling properties, wood fibers It is easy to adjust the reactivity when it penetrates into wood, and after curing it fills the voids with the above-mentioned foaming so that it can help prevent dimensional changes due to water absorption, making it possible to supply products with boiling water resistance. Is.
【００１８】本発明の実施に使用し得る水性エマルジョ
ン型樹脂塗料には、酢ビ系、エチレン−酢ビ系、（メ
タ）アクリル系、エチレン−酢ビ−アクリル系など市販
のものでよいが、イオン性はアニオン又はノニオン系が
好都合である。The aqueous emulsion type resin coating material that can be used in the practice of the present invention may be commercially available vinyl acetate type, ethylene-vinyl acetate type, (meth) acrylic type, ethylene-vinyl acetate-acrylic type and the like. The ionicity is conveniently anionic or nonionic.
【００１９】シリカ、アルミナの水性ゾルは粒径が５〜
１００ｎｍ、含量は２０〜５０％程度で市販のものが使
用できる。イソシアネート組成物はエチレンオキサイ
ド、プロビレンオキサイドのプレポリマー又はコプレポ
リマーとＴＤＩ（トリレンジイソシアネート tolylene
diisocyanate）、ＭＤＩ（ジフェニルメタン−4−4'
−ジイソシアネート diphenylmethane−4−4'−diisocy
anate）、ＨＭＤＩ（ヘキサメチレンジイソシアネー
ト）、ＰＭＤＩ（＝ポリメチレンポリフェニルポリイソ
シアネート、別名ポリメリックＭＤＩ）などを必須成分
とし、必要により界面活性剤、反応触媒より成るもので
ある。Aqueous sol of silica and alumina has a particle size of 5 to 5.
A commercially available product having a thickness of 100 nm and a content of about 20 to 50% can be used. The isocyanate composition is a prepolymer or coprepolymer of ethylene oxide, propylene oxide and TDI (tolylene diisocyanate tolylene).
diisocyanate), MDI (diphenylmethane-4-4 ')
− Diisocyanate diphenylmethane−4−4′−diisocy
anate), HMDI (hexamethylene diisocyanate), PMDI (= polymethylene polyphenyl polyisocyanate, also known as polymeric MDI) and the like as essential components, and if necessary, a surfactant and a reaction catalyst.
【００２０】前記プレポリマーの分子量としては２００
〜３０００程度で、好ましいのは３００〜１５００であ
る。イソシアネートとプレポリマーは予め反応させてお
いても良い。これらは作業環境の管理面と浸透性、反応
後の強さなどから決定される。The molecular weight of the prepolymer is 200
Approximately 3000, preferably 300-1500. The isocyanate and the prepolymer may be reacted in advance. These are determined from the management aspect of work environment, permeability, and strength after reaction.
【００２１】（発明実施の態様）本発明を実施する態様
には種々あるが、もっとも一般的な方法は、含水率既知
の中密度木質繊維基板（通常７〜８％が多い）に、イソ
シアネート組成物を固形分として中密度木質繊維基板の
５〜３０重量％となるように塗布又は浸漬などの方法で
浸透させる。好ましい浸透量は固形分として１０〜２０
重量％が適当で、この程度の浸透量の場合、中密度木質
繊維基板の表面はほとんど粘着性のない状態で、しかも
概ね中密度木質繊維基板の全体に含浸させることができ
る。(Embodiment of the Invention) Although there are various modes for carrying out the present invention, the most general method is to use a medium density wood fiber substrate with a known water content (usually 7 to 8% in most cases) and an isocyanate composition. The product is impregnated by a method such as coating or dipping so that the solid content is 5 to 30% by weight of the medium density wood fiber substrate. A preferable permeation amount is 10 to 20 as a solid content.
When the weight% is appropriate and the permeation amount is in this range, the surface of the medium-density wood fiber substrate can be impregnated with almost no stickiness on the surface of the medium-density wood fiber substrate.
【００２２】引き続いてその片面に固形分既知の水性エ
マルジョン塗料を必要量塗布すると塗料の水分は中密度
木質繊維基板に吸収されると共に表面からも乾燥して行
くが、中密度木質繊維基板の含水率は２０〜５０％とな
り、室温でもイソシアネート配合組成物との反応も一部
開始する。エマルジョン塗料の表面は比較的短時間で粘
着しなくなるのでこの段階で型に入れるか、連続的に熱
ロールに挿入して加熱・加圧して所定の形状に成形する
と同時にイソシアネート組成物を硬化する。圧力は５〜
４Ｏｋｇｆ/ｃｍ2、好ましくは６０〜１２０℃である。
加圧・加熱の保持時間は３０分〜１分程度であるが、こ
の加熱・加圧の条件は成形品の形状、厚さ、大きさによ
って工業的にもっとも有利な条件が選択される。Subsequently, when a necessary amount of an aqueous emulsion paint having a known solid content is applied to one surface of the paint, the water content of the paint is absorbed by the medium-density wood fiber substrate and is also dried from the surface. The rate is 20 to 50%, and the reaction with the isocyanate compounded composition partially starts even at room temperature. Since the surface of the emulsion paint does not stick in a relatively short time, it is put in a mold at this stage or continuously inserted into a hot roll and heated and pressed to form a predetermined shape, and at the same time, the isocyanate composition is cured. Pressure is 5
It is 40 kgf / cm 2 , preferably 60 to 120 ° C.
The holding time of pressurization / heating is about 30 minutes to 1 minute, and the conditions of this heating / pressurization are industrially most advantageous depending on the shape, thickness, and size of the molded product.
【００２３】以下、実施例により更に具体的に本発明を
説明するが、これらが本発明の全てを代表するものでは
ない。 ［実施例］厚さ３ｍｍ、含水率８％の中密度木質繊維板
に、分子量３００のポリプロピレングリコールとＰ−Ｍ
ＤＩ（イソシアネート３０％）を当モルに配合したもの
を両面から塗布した。イソシアネート配合物は容易に中
密度木質繊維基板に吸収されてしまい、表面の粘着性は
なくなる。イソシアネート組成物の含浸量は中密度繊維
木質基板の重量の約１８.５％であった。引き続いてシ
リカの水性ゾルを固形物換算で２０％となるように添加
した木地色のアクリルエマルジョン塗料を約１０μｍの
厚さに塗布し、室温で接触乾燥後、１４０℃、２０ｋｇ
ｆ/ｃｍ2、５分の条件でナラ材の木目模様をエンボス加
工した。エンボスの模様は非常にシャープに表現されて
いた。ついでエンボス面を木材用の油性スティン（ウオ
ルナヅト色）でワイピング処理を行って着色し、耐摩耗
性材として４００メッシュのアルミナ粉１０重量部を含
むＵＶ（紫外線）硬化アクリルウレタン樹脂塗料を１５
μｍの厚さに塗布して化粧板を得た。化粧板の外観は塗
装木材と全く区別が付け難く、耐摩耗性は在来の床材と
同等で、押し込み硬さはむしろ優れたものとなった。耐
水性も２時間煮沸では塗膜に膨れ等の欠点は現れなかっ
た。Hereinafter, the present invention will be described in more detail with reference to Examples, but these are not representative of all of the present invention. [Example] On a medium-density wood fiberboard having a thickness of 3 mm and a water content of 8%, polypropylene glycol having a molecular weight of 300 and PM
A mixture of DI (30% isocyanate) in an equimolar amount was applied from both sides. The isocyanate formulation is easily absorbed by the medium density wood fiber substrate and the surface becomes tack free. The impregnation amount of the isocyanate composition was about 18.5% of the weight of the medium density fiber wood substrate. Subsequently, a bare-color acrylic emulsion paint, to which an aqueous sol of silica was added so as to be 20% in terms of solid matter, was applied to a thickness of about 10 μm, and after contact drying at room temperature, 140 ° C. and 20 kg.
The wood grain pattern of oak wood was embossed at f / cm 2 for 5 minutes. The embossed pattern was very sharp. Then, the embossed surface is colored by wiping with oil-based stin (wooden color) for wood, and UV (ultraviolet) cured acrylic urethane resin paint containing 10 parts by weight of 400-mesh alumina powder as an abrasion resistant material is applied.
It was applied to a thickness of μm to obtain a decorative board. The external appearance of the decorative board was completely indistinguishable from painted wood, the abrasion resistance was similar to that of conventional flooring materials, and the indentation hardness was rather excellent. With respect to water resistance, defects such as swelling of the coating film did not appear after boiling for 2 hours.
【００２４】[0024]
【発明の効果】本発明方法は、中密度木質繊維基板或い
は基板表面に積層した中密度木質繊維板層に水性エマル
ジョン型塗料を塗布するので、木質繊維が水性エマルジ
ョン型塗料の水分を吸って軟化して加工し易くなる。ま
た、前記水分と木質繊維に含浸したイソシアネート組成
物とが反応して発泡硬化するので、蒸発させなければな
らない水分量がそれだけ少なくなり、予備乾燥は短時間
で済む。イソシアネート組成物の硬化完了後は、その発
泡体で木質繊維の空隙部が充填され且つ若干の膨潤も条
件によっては行われるので、比較的少量のイソシアネー
ト組成物の使用で防水性能を発揮させる事が出来るよう
になる。従って、全体の重量がさほど増加する事がな
い。そして、塗料により表面処理がなされるので、同時
に防水と乙粧作業が完了する。また、水性エマルジョン
型塗料にシリカ又はおよびアルミナの水性ゾルを含有さ
せることにより、又は別途シリカ又はおよびアルミナの
水性ゾルを含有塗料を塗布する事により、塗装面の硬
さ、耐摩耗性、耐汚染性、重ね塗装適性を向上させる事
ができ、基板を優れた床用素材とする事が出来る。更
に、エチレンオキサイド、プロピレンオキサイドのプレ
ポリマー又はコプレポリマーとジイソシアネートをイソ
シアネート組成物の必須成分とすることで、木質繊維の
吸水による寸法変化の抑制が可能となり煮沸耐水性を木
質繊維に付与する事が出来る。According to the method of the present invention, since the aqueous emulsion type coating material is applied to the medium density wooden fiber board or the medium density wooden fiber board layer laminated on the surface of the substrate, the wood fiber absorbs water of the aqueous emulsion type coating material to be softened. It becomes easier to process. Further, since the water content reacts with the isocyanate composition impregnated in the wood fiber to foam and harden, the amount of water that must be evaporated is reduced accordingly, and the preliminary drying can be completed in a short time. After the curing of the isocyanate composition, the voids of the wood fibers are filled with the foam and some swelling is also performed depending on the conditions.Therefore, the waterproof performance may be exhibited by using a relatively small amount of the isocyanate composition. become able to do. Therefore, the total weight does not increase so much. Since the surface treatment is performed with the paint, waterproofing and cosmetic work are completed at the same time. In addition, by adding silica or and alumina aqueous sol to the water-based emulsion type coating or by separately applying a coating containing silica or alumina aqueous sol, the hardness of the coated surface, abrasion resistance, and stain resistance And the suitability for repeated coating can be improved, and the substrate can be used as an excellent floor material. Furthermore, by using a prepolymer or coprepolymer of ethylene oxide or propylene oxide and diisocyanate as the essential components of the isocyanate composition, it is possible to suppress dimensional change due to water absorption of the wood fiber and to impart boiling water resistance to the wood fiber. .
【図１】本発明にかかる化粧板の実施例の断面図FIG. 1 is a sectional view of an embodiment of a decorative board according to the present invention.
【図２】本発明にかかる化粧板のその他の実施例の断面
図FIG. 2 is a sectional view of another embodiment of the decorative board according to the present invention.
【図３】本発明にかかる化粧板において、水性エマルジ
ョン型塗料にシリカ又はおよびアルミナの水性ゾルを含
有させた場合の部分断面図FIG. 3 is a partial cross-sectional view of a decorative board according to the present invention in which an aqueous emulsion type coating material contains an aqueous sol of silica or alumina.
(A)…化粧板 (1)…化粧層 (2)…基板 (2a)…中密度木質繊維板層 (3)…基板本体 (A)… Decorative board (1)… Decorative layer (2)… Substrate (2a)… Medium density wood fiberboard layer (3)… Substrate body
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年１１月７日[Submission date] November 7, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００１[Correction target item name] 0001
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００１】本発明は地球環境に優しく且つ素材的にも
優れた建築材料を工業的に安価に供給する技術に関し、
更に詳しく言えば、中密度木質繊維基板又は中密度木質
繊維板を基板本体の表面に積層して形成した基板の表面
化粧を施すと同時に比重を余分に高くすることなく、中
密度木質繊維基板又は基板表面の中密度木質繊維板層の
耐水性能を向上させる事のできる製造方法に係るもので
ある。[0001] The present invention relates to industrially inexpensively supplying technology building material excellent <br/> also friendly and material specifically to the global environment,
More specifically, the medium-density wood fiber board or the medium-density wood fiber board is formed on the surface of the board body by applying the surface makeup of the board and at the same time without increasing the specific gravity, the medium-density wood fiber board or The present invention relates to a manufacturing method capable of improving the water resistance performance of a medium-density wood fiberboard layer on a substrate surface.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００９】シリカ又はアルミナの水性ゾルは水性エマ
ルジョン型塗料に混入して使用する（図３参照）。シリ
カ又はアルミナが化粧層（１）に分散して化粧層（１）
を強化すると共にその一部は化粧層（１）の表面に露出
するので、化粧層（１）の硬さ、対摩耗性、重ね塗装性
を向上させる事が出来る。An aqueous sol of silica or alumina is mixed with an aqueous emulsion type paint before use (see FIG. 3). Silica or alumina decorative layer by being dispersed in (1)粧層(1)
Since part of it is exposed on the surface of the decorative layer (1), the hardness, abrasion resistance and recoatability of the decorative layer (1) can be improved.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１０】請求項３は、請求項１のイソシアネート組
成物を更に詳しくしたもので『イソシアネート組成物と
してエチレンオキサイド、プロピレンオキサイドのプレ
ポリマー、又はコプレポリマーとジイソシアネートを必
須成分とする』もので、イソシアネート組成物が水との
親和性が良好で且つ基板（２）を構成する中密度木質繊
維板或いは中密度木質繊維板層（２ａ）との親和性にも
優れ、硬化時に発泡して中密度木質繊維基板（２）又は
中密度木質繊維板層（２ａ）の空隙部を埋め且つ若干の
膨潤性もあり、しかも中密度木質繊維基板（２）又は中
密度木質繊維板層（２ａ）に浸透させたときの反応性の
調節も容易で、硬化後は前記発泡によって木質繊維の空
隙部を埋めるために中密度木質繊維基板（２）又は中密
度木質繊維板層（２ａ）の吸水による寸法変化の抑制に
役立ち、煮沸耐水性のある製品の供給を可能とするもの
である。A third aspect of the present invention is a more detailed version of the isocyanate composition of the first aspect, wherein "isocyanate composition contains ethylene oxide, propylene oxide prepolymer or coprepolymer and diisocyanate as essential components". density excellent affinity wood fiber plate or medium density wood fiber board layer and (2a), medium density wood fiber foaming during curing within the object constitutes affinity the good and the substrate (2) with water The substrate (2) or the medium-density wood fiberboard layer (2a) is filled with voids and has a slight swelling property, and the medium-density wood fiber board (2) or the medium-density wood fiberboard layer (2a) is infiltrated. It is easy to control the reactivity at the time, and after curing, in order to fill the voids of the wood fibers by the foaming, the medium density wood fiber substrate (2) or the medium density wood fiber board layer ( It helps suppression of dimensional change caused by water absorption in a), and makes it possible to supply the products with boiling water resistance.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２３[Correction target item name] 0023
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２３】以下、実施例により更に具体的に本発明を
説明するが、これらが本発明の全てを代表するものでは
ない。 ［実施例］厚さ３ｍｍ、含水率８％の中密度木質繊維板
に、分子量３００のポリプロピレングリコールとＰ−Ｍ
ＤＩ（イソシアネート３０％）を当モルに配合したもの
を両面から塗布した。イソシアネート配合物は容易に中
密度木質繊維基板に吸収されてしまい、表面の粘着性は
なくなる。イソシアネート組成物の含浸量は中密度木質
繊維基板の重量の約１８．５％であった。引き続いてシ
リカの水性ゾルを固形分換算で２０％となるように添加
した木地色のアクリルエマルジョン塗料を約１０μｍの
厚さに塗布し、室温で指触乾燥後、１４０℃、２０ｋｇ
ｆ／ｃｍ２、５分の条件でナラ材の木目模様をエンボス
加工した。エンボスの模様は非常にシャープに表現され
ていた。ついでエンボス面を木材用の油性ステイン（ウ
ォルナット色）でワイピング処理を行って着色し、耐摩
耗性材として４００メッシュのアルミナ粉１０重量部を
含むＵＶ（紫外線）硬化アクリルウレタン樹脂塗料を１
５μｍの厚さに塗布して化粧板を得た。化粧板の外観は
塗装木材と全く区別が付け難く、耐摩耗性は在来の床材
と同等で、押し込み硬さはむしろ優れたものとなった。
耐水性も２時間煮沸では塗膜に膨れ等の欠点は現れなか
った。Hereinafter, the present invention will be described in more detail with reference to Examples, but these are not representative of all of the present invention. [Example] On a medium-density wood fiberboard having a thickness of 3 mm and a water content of 8%, polypropylene glycol having a molecular weight of 300 and PM
A mixture of DI (30% isocyanate) in an equimolar amount was applied from both sides. The isocyanate formulation is easily absorbed by the medium density wood fiber substrate and the surface becomes tack free. The amount of the isocyanate composition impregnated is medium density wood.
It was about 18.5% of the weight of the fiber substrate. Subsequently an aqueous sol of silica coated with wooden base color of acrylic emulsion paint was added to a 20% in terms of solid content to a thickness of about 10μm, after drying finger touch at room temperature, 140 ° C., 20 kg
The grain pattern of oak wood was embossed under the condition of f / cm 2 and 5 minutes. The embossed pattern was very sharp. Then, the embossed surface is changed to an oil stain ( w
1 ) UV (ultraviolet) curable acrylic urethane resin paint containing 10 parts by weight of 400-mesh alumina powder as a wear-resistant material.
It was applied to a thickness of 5 μm to obtain a decorative board. The appearance of the veneer was completely indistinguishable from painted wood, the abrasion resistance was comparable to that of conventional flooring, and the indentation hardness was rather excellent.
With respect to water resistance, defects such as swelling of the coating film did not appear after boiling for 2 hours.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２４[Name of item to be corrected] 0024
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２４】本発明方法は、中密度木質繊維基板或いは
基板表面に積層した中密度木質繊維板層に水性エマルジ
ョン型塗料を塗布するので、木質繊維が水性エマルジョ
ン型塗料の水分を吸って軟化して加工し易くなる。ま
た、前記水分と木質繊維に含浸したイソシアネート組成
物とが反応して発泡硬化するので、蒸発させなければな
らない水分量がそれだけ少なくなり、予備乾燥は短時間
で済む。イソシアネート組成物の硬化完了後は、その発
泡体で木質繊維の空隙部が充填され且つ若干の膨潤も条
件によっては行われるので、比較的少量のイソシアネー
ト組成物の使用で防水性能を発揮させる事が出来るよう
になる。従って、全体の重量がさほど増加する事がな
い。そして、塗料により表面処理がなされるので、同時
に防水と化粧作業が完了する また、水性エマルジョン型塗料にシリカ又はおよびアル
ミナの水性ゾルを含有させることにより、又は別途シリ
カ又はおよびアルミナの水性ゾルを含有させた塗料を塗
布する事により、塗装面の硬さ、耐摩耗性、耐汚染性、
重ね塗装適性を向上させる事ができ、基板を優れた床用
素材とする事ができる。更に、エチレンオキサイド、プ
ロピレンオキサイドのプレポリマー又はコプレポリマー
とジイソシアネートをイソシアネート組成物の必須成分
とすることで、木質繊維の吸水による寸法変化の抑制が
可能となり煮沸耐水性を木質繊維に付与する事が出来
る。In the method of the present invention, since the aqueous emulsion type coating material is applied to the medium density wooden fiber board or the medium density wooden fiber board layer laminated on the surface of the substrate, the wood fiber absorbs the water content of the aqueous emulsion type coating material to be softened. It becomes easy to process. Further, since the water content reacts with the isocyanate composition impregnated in the wood fiber to foam and harden, the amount of water that must be evaporated is reduced accordingly, and the preliminary drying can be completed in a short time. After the curing of the isocyanate composition, the voids of the wood fibers are filled with the foam and some swelling is also performed depending on the conditions.Therefore, the waterproof performance may be exhibited by using a relatively small amount of the isocyanate composition. become able to do. Therefore, the total weight does not increase so much. Then, the surface treatment is performed by coating, at the same time also waterproof and makeup work is completed, it contains by containing an aqueous sol of silica or and alumina in an aqueous emulsion type paints, or separately silica or and alumina aqueous sol it allows the hardness of the coated surface, abrasion resistance, stain resistance of coating was allowed to paint,
The suitability for repeated coating can be improved, and the substrate can be used as an excellent floor material. Furthermore, by using a prepolymer or coprepolymer of ethylene oxide or propylene oxide and a diisocyanate as the essential components of the isocyanate composition, it is possible to suppress the dimensional change due to water absorption of the wood fiber and impart boiling water resistance to the wood fiber. .
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大山 靖 大阪市北区中之島２丁目３番18号 大建工 業株式会社内 (72)発明者 伊藤 圭 大阪市北区中之島２丁目３番18号 大建工 業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Oyama 2-3-3 Nakanoshima, Kita-ku, Osaka City Daiken Kogyo Co., Ltd. (72) Inventor Kei Ito 2-3-18 Nakanoshima, Kita-ku, Osaka Within Daiken Kogyo Co., Ltd.
Claims (3)
質繊維板にて形成されている基板の表面部分にイソシア
ネート組成物を塗布して浸透させ、続いてイソシアネー
ト組成物の塗布面に水性エマルジョン型塗料を塗布した
後、加熱・加圧して成形し、基板の表面に化粧層を形成
することを特徴とする化粧板の製造方法。1. An isocyanate composition is applied to and permeates a surface portion of a substrate whose entire surface or a surface portion is formed of a medium-density wood fiber board, and subsequently, an aqueous emulsion type coating material is applied to the surface to which the isocyanate composition is applied. A method for producing a decorative board, which comprises forming a decorative layer on the surface of the substrate by applying heat and pressure and molding.
法において、 水性エマルジョン型塗料として、シリカ又はおよびアル
ミナの水性ゾルを必須成分として含有することを特徴と
する化粧板の製造方法。2. The method for producing a decorative board according to claim 1, wherein the aqueous emulsion-type coating material contains an aqueous sol of silica or alumina as an essential component.
法において、 イソシアネート組成物としてエチレンオキサイド、プロ
ピレンオキサイドのプレポリマー又はコプレポリマーと
ジイソシアネートとを必須成分とすることを特徴とする
化粧板の製造方法。3. The method for producing a decorative board according to claim 1, wherein the isocyanate composition comprises a prepolymer or coprepolymer of ethylene oxide or propylene oxide and a diisocyanate as essential components. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8103988A JPH09267438A (en) | 1996-03-29 | 1996-03-29 | Production of decorative panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8103988A JPH09267438A (en) | 1996-03-29 | 1996-03-29 | Production of decorative panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09267438A true JPH09267438A (en) | 1997-10-14 |
Family
ID=14368693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8103988A Pending JPH09267438A (en) | 1996-03-29 | 1996-03-29 | Production of decorative panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09267438A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006264072A (en) * | 2005-03-23 | 2006-10-05 | Daiken Trade & Ind Co Ltd | Reinforced woody fiberboard and its manufacturing method |
| JP2007313878A (en) * | 2006-04-26 | 2007-12-06 | Matsushita Electric Works Ltd | Building board and manufacturing process of building board |
| EP3461610A1 (en) * | 2011-01-06 | 2019-04-03 | Flooring Technologies Ltd. | Method and device for targeted influence of the technological characteristics of individual areas of a wooden board, a pre-compressed wooden fabric or fibre cake made of wood |
-
1996
- 1996-03-29 JP JP8103988A patent/JPH09267438A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006264072A (en) * | 2005-03-23 | 2006-10-05 | Daiken Trade & Ind Co Ltd | Reinforced woody fiberboard and its manufacturing method |
| JP2007313878A (en) * | 2006-04-26 | 2007-12-06 | Matsushita Electric Works Ltd | Building board and manufacturing process of building board |
| EP3461610A1 (en) * | 2011-01-06 | 2019-04-03 | Flooring Technologies Ltd. | Method and device for targeted influence of the technological characteristics of individual areas of a wooden board, a pre-compressed wooden fabric or fibre cake made of wood |
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