JP3840782B2 - Decorative plate and manufacturing method thereof - Google Patents
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Description
【０００１】
【発明の属する技術分野】
本発明は、住宅機器、家具、建築内装材等に用いられる化粧板及び、その化粧板の製造に用いられる人工の化粧単板に関する発明である。
【０００２】
【従来の技術】
住宅機器、家具、建築内装材等の表面化粧には、従来から天然の木材の中から選ばれた美観の優れたいわゆる天然銘木を薄くスライスした化粧単板が多く用いられてきた。いわゆる銘木としての評価に値する木材は、その色彩だけでなく、年輪により形成される繊細な木目の模様にも特徴があり、色彩と木目模様との連携により形成されるデザインが高く評価されるのである。
【０００３】
しかし、最近では、天然銘木資源が枯渇しつつあり、それとともに価格が高騰してきたので、天然銘木の代わりに、南洋材のように比較的安価で大量に入手できる木材を、スライサー又はロータリーレースで薄くスライスし、必要に応じて漂白又は、脱色した後、染色して天然銘木に似せたものも用いられるようになった。
【０００４】
ところが、南洋材のように、比較的安価で大量に入手できる木材は、木目模様が大柄であったり又は単調であり、或いは木目が明瞭でないものが殆どであって、天然銘木独特の美観にはほど遠いものである。従って、これら単板を単に染色しただけでは、天然銘木のような高級感を醸し出すことができない。そのため、最近では、これら安価な木材から製造した原料単板を染色し、それを厚み方向に積層接着してフリッチを造り、それを積層面と交差する方向に薄くスライスして得られる人工の木質化粧単板が実用化されるようになってきた。
【０００５】
すなわち、これら南洋材等の安価な木材から得られる原料単板を、表現しようとする天然銘木の春材部に相当する色彩に染色したものと秋材部に相当する色彩に染色したものを交互に積層接着したフリッチを積層面と交差する方向に薄くスライスすることにより、天然銘木の単板と極めてよく似た木質化粧単板を得ようとするものである。
【０００６】
単板の厚みは、表現しようとする天然銘木の木目を参考に設定される。また、原料である南洋材等の単板は、表現しようとする天然銘木の色調にできるだけよく似せるためと、染色後の単板の色調を一定範囲に収めるために、通常、染色前に漂白又は脱色するのが普通である。
【０００７】
しかしながら、針葉樹の銘木として好まれる例えば松の木目柄は、春材部は、通常の木材色に近い色調であるが、秋材部は、半透明の飴色であり、春材部との色調の差が歴然としている。そのため、上述の積層フリッチにより、人工の木質化粧単板を製造しようとしても、春材部を構成する単板は比較的容易に入手できるが、秋材部を構成する単板を入手するのが困難である。
【０００８】
秋材部を構成する単板にＷＰＣ処理をして半透明化したものを用いる方法もあるが、コストが高くなる。
【０００９】
【発明が解決しようとする課題】
本発明は、以下に述べる方法により、上記課題を解決しようとするものである。
【００１０】
【課題を解決するための手段】
本発明は、以下に述べる方法により、上記課題を解決した。即ち、従来方法における人工の木質化粧単板用の積層フリッチにおいて、秋材部を構成する原料単板に代えて、１１０℃以上の高温で熱圧締すると流動化し、樹脂の分子が重合して硬化するとともに透明化する熱硬化性樹脂（以下、単に、樹脂とも言う）の含浸紙を用いる。
【００１１】
例えば、ダップ樹脂含浸紙は、クラフト紙にダップ樹脂を含浸したもので、常温では不透明であるが、１１０℃以上の高温で熱圧締すると流動化し、樹脂含浸紙内部に含まれる空気の泡が排出され、樹脂分子どうしが重合して硬化するとともに、透明になる。流動化し、硬化し、透明となる温度が１１０℃以上の樹脂を用いるのは、通常の木質単板や本発明による化粧単板を合板、繊維板等の化粧板基材に熱圧して貼るときに使用する接着剤の多くが、１００〜１１０℃の温度で硬化を開始し、接着力を発揮するからである。また、これら接着剤の多くは、２００℃以上になると、高熱により劣化しやすいから、使用温度範囲は、大体１１０〜２００℃である。
【００１２】
本発明における含浸紙に用いる適当な樹脂として、ダップ樹脂の他に、ポリエステル樹脂、メラミン樹脂、及び上記３種の樹脂の中から選択した２種、又は、上記３種の樹脂を混合したものを挙げることができる。他にも適当な樹脂があるが、樹脂価格、硬化温度、透明化度、硬化後の硬度、物性等を考慮すると、上記樹脂が適する。中でも、下記実施例で示すように、ダップ樹脂とポリエステル樹脂とを混合したものが最も適する。
【００１３】
以下に、本発明の化粧板を得る手順を述べる。まず、春材部に相当する木質単板と、ダップ樹脂等の樹脂含浸紙とを交互に積層接着して、フリッチを得る。次ぎに、上記フリッチを、積層面と交差する方向にスライスして化粧単板を得る。そして、その化粧単板を合板、繊維板等の木質の化粧板基材に、ホットプレスを用いて、１１０〜２００℃で熱圧締して接着する。すると、不透明の樹脂含浸紙は透明になり、下地の化粧板基材が透視できるから、松等の天然銘木の秋材部のような透明又は半透明で、立体感のある木目を表現することができる。なお、熱圧締の際の圧力は、基材が木質基材の場合は、通常の木質化粧板の製造において用いられる５〜１５ｋｇ／ｃｍ2 が適当である。あまり圧力を高くすると、木質基材の場合、熱圧により、厚み減りを生じる場合がある。
【００１４】
化粧板基材の色調が表現しようとする天然銘木の色調と異なるために、上記人工化粧単板を貼った化粧板の色調が、表現しようとする天然銘木の色調と異なる場合は、適宜化粧板基材の表面を表現しようとする天然銘木の色調に合うように着色塗装しておく。化粧板基材に着色塗装を施す代わりに、化粧単板を貼るときに用いる接着剤を着色し、或いは、化粧板基材と接着剤の両方に着色してもよい。
【００１５】
【発明の実施の形態】
本発明に用いる樹脂含浸紙の原紙は、漂白していない積層板原紙が最も適している。その理由は、価格が安いことはもちろん、樹脂を容易に含浸できることと、熱圧締したときの透明度が高く、松等の秋材色を表現しやすいためである。また、その厚みは、木質単板とほぼ同じ厚みの０．５〜２ｍｍが適当である。
【００１６】
樹脂含浸紙の透明化の度合いは、樹脂の含浸率により調整できる。即ち、樹脂含浸率を高くすれば高くするほど透明化度は増し、樹脂含浸率を低くすれば低くするほど透明化度は低くなる。通常の木材の場合、春材部と秋材部の間に、両者の中間色を呈する移行部が存在する。従って、含浸率が高い樹脂含浸紙を用いて、木質化粧単板の秋材部を表現するとともに、含浸率の低い樹脂含浸紙を用いて、春材部と秋材部の中間に存在する移行部を表現することもできる。この移行部を表現することにより、よりいっそうリアルに天然銘木に類似した人工の化粧単板を製造することができる。
【００１７】
即ち、春材部に相当する木質単板と、含浸率の低い樹脂含浸紙と、含浸率が高い樹脂含浸紙をこの順に多数回積層接着してフリッチを製造し、このフリッチを積層面に交差する方向に薄くスライスして人工の化粧単板を得る。これにより得られる人工化粧単板は、図１に示すごとく、不透明の春材部Ａ、春材部から秋材部への移行部Ｂ，Ｃ，Ｄ、透明度の高い秋材部Ｅ、秋材部から春材部への移行部Ｆ，Ｇ，Ｈが幅方向にこの順で配されている。透明度の低い移行部、透明度の高い秋材部は、下地の化粧板基材を透視できるので、立体感が感じられ、天然銘木と極めてよく似た木目柄をリアルに表現できる。
【００１８】
また、樹脂含浸紙を製造する際に、含浸する樹脂に染料又は顔料を添加し、樹脂含浸紙に着色する方法を適宜用いて、さらに天然銘木によく似た化粧単板を製造することも可能である。
【００１９】
本発明において、樹脂含浸率の高い樹脂含浸紙とは、紙の重量に対して、７０％以上且つ１００％未満の重量の樹脂を含浸させたもので、樹脂含浸率の低い樹脂含浸紙とは、３０％以上且つ７０％未満の重量の樹脂を含浸させたものである。樹脂を１００％以上含浸することもできるが、コストが高くなるばかりでなく、それ以上に透明度を上げる必要もない。３０％以下の樹脂含浸率であると、熱圧締しても殆ど透明にならない。
【００２０】
天然銘木における春材部と秋材部との間の移行部は、秋材部に近くなるに従って、色調が徐々に濃い秋材色に近づいてくるので、それを人工の化粧単板で表現しようとする場合、下記実施例に示すように、樹脂含浸率を低くした樹脂含浸紙を用いて移行部を構成することが望ましい。また、樹脂含浸率の増減により、樹脂含浸紙の透明化度を調整できるので、樹脂含浸率を段階的に高くした樹脂含浸紙を２又は３種類用いることにより、移行部の色調を徐々に濃い秋材色に近づけていくことも可能で、更に天然銘木によく似た木目柄の化粧板を製造できる。
【００２１】
フリッチの積層に用いる接着剤は、湿気硬化型のウレタン樹脂接着剤が最も適する。湿気硬化型のウレタン樹脂接着剤は、含水率の高い木材どうしを接着することができ、接着後も十分な耐水強度があるので、木質化粧単板を用いた人工木質化粧単板のフリッチ製造に広く用いられている。
【００２２】
【発明の効果】
樹脂含浸率が３０％以上の含浸紙は、熱圧すると透明又は半透明になる。従って、この樹脂含浸紙を木質単板と交互に積層接着したフリッチを積層面に交差する方向に薄くスライスして得た人工の化粧単板を、合板等の化粧板基材に熱圧締して接着すると、透明又は半透明化した樹脂含浸紙の部分において、化粧板基材を透視できるので、天然銘木のように視覚的立体感が感じられ、美観面で、天然銘木に極めてよく似た木目柄の化粧板を製造することができる。
【００２３】
樹脂含浸率の増減により、透明化度を調整できるので、天然銘木の移行部に相当する部分に、樹脂含浸率を段階的に高くした樹脂含浸紙を２又は３種類用いることにより、移行部の色調を徐々に濃い秋材色に近づけていくことも可能で、更に天然銘木によく似た木目柄の化粧板を製造できる。
【００２４】
【実施例】
幅１１０ｍｍ、長さ４ｍ、厚みがそれぞれ１ｍｍ、０．１５ｍｍ，０．０５ｍｍで、密度０．３４ｇ／ｃｍ3 の積層板原紙各６０枚を、ダップ樹脂４０部、不飽和ポリエステル樹脂６０部、重合開始剤として過酸化物のベンゾイルパーオキサイド５部、充填剤としてホワイトカーボン５部を配合した樹脂液に１分間浸漬し、余分な樹脂を絞りロールで絞り取って、それぞれについて、樹脂含浸率を１００％、６５％、５０％、３５％に調整した後、熱風乾燥機で８０℃、１５分間乾燥させた。
【００２５】
上記樹脂含浸紙と同寸法の厚み１．０ｍｍのガロガロ単板を、湿気硬化型ウレタン樹脂接着剤を用いて、下記のように、Ａ〜Ｈの順序で多数回繰り返し積層接着したフリッチを積層面と交差するようにスライスして、厚さ０．３ｍｍの人工の化粧単板を得た。
【００２６】
Ａ．ガロガロ単板 厚さ１．０ｍｍ
Ｂ．樹脂含浸紙 厚さ０．１５ｍｍ、樹脂含浸率３５％
Ｃ．樹脂含浸紙 厚さ０．１５ｍｍ、樹脂含浸率５０％
Ｄ．樹脂含浸紙 厚さ０．１５ｍｍ、樹脂含浸率６５％
Ｅ．樹脂含浸紙 厚さ１．０ｍｍ、樹脂含浸率１００％
Ｆ．樹脂含浸紙 厚さ０．０５ｍｍ、樹脂含浸率６５％
Ｇ．樹脂含浸紙 厚さ０．０５ｍｍ、樹脂含浸率５０％
Ｈ．樹脂含浸紙 厚さ０．０５ｍｍ、樹脂含浸率３５％
【００２７】
続いて、上記人工化粧単板をアクリル系樹脂接着剤で厚さ１２ｍｍの合板にホットプレスを用いて熱圧接着し、図１の模式図に示す化粧板を得た。合板には、予め、アクリル系樹脂に松の秋材部と同色の顔料を１０％混入して調色した着色剤を表面に塗布し、着色しておいた。
【００２８】
人工化粧単板を表面に貼られた化粧板は、松の秋材部に相当する樹脂含浸紙の部分と移行部に相当する樹脂含浸紙の部分が、ホットプレスによる熱圧を経て、透明又は半透明となり、この透明又は半透明層を透視して、合板基材表面に塗装した濃色着色剤の色が、春材部に相当するＡから秋材部に相当するＥに向かって、段階的に濃くなっていくのが見えるので、天然銘木の松の木目のごとく、立体感が感じられるとともに、色調が徐々に変化する移行部が観察される。
【図面の簡単な説明】
【図１】 図１は、本発明による化粧単板の木目の色調を示す模式図。
【符号の説明】
Ａ ガロガロ単板
Ｂ 樹脂含浸紙
Ｃ 樹脂含浸紙
Ｄ 樹脂含浸紙
Ｅ 樹脂含浸紙
Ｆ 樹脂含浸紙
Ｇ 樹脂含浸紙
Ｈ 樹脂含浸紙[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a decorative plate used for housing equipment, furniture, building interior materials, and the like, and an artificial decorative veneer used for manufacturing the decorative plate.
[0002]
[Prior art]
Conventionally, a veneer made by thinly slicing a so-called natural wood with excellent aesthetics selected from natural wood has been used for surface makeup of housing equipment, furniture, building interior materials and the like. Wood that deserves evaluation as a so-called precious tree is characterized not only by its color but also by the delicate wood grain pattern formed by the annual rings, and the design formed by the cooperation between the color and wood grain pattern is highly appreciated. is there.
[0003]
Recently, however, natural stock resources have been depleted, and prices have risen along with it, so instead of natural wood, we can use timber that can be obtained in large quantities at a relatively low price, such as southern ocean wood, using a slicer or rotary race. After thinly slicing and bleaching or decoloring as necessary, dyed and imitated natural wood has come to be used.
[0004]
However, wood that is relatively inexpensive and available in large quantities, such as southern seawood, has a large or monotonous grain pattern, or most of the wood grain is not clear. It is far away. Therefore, it is not possible to bring out a high-class feeling like a natural wood by simply dyeing these veneers. Therefore, recently, artificial woody material obtained by dyeing raw material veneers made from these inexpensive wood, laminating them in the thickness direction, creating a flitch, and thinly slicing it in the direction intersecting the laminated surface Cosmetic veneers have come into practical use.
[0005]
In other words, raw material veneer obtained from inexpensive lumber such as South Sea lumber is alternately dyed in a color corresponding to the spring wood part of the natural wood to be expressed and in a color equivalent to the autumn wood part. The wood-bonded veneer very similar to natural veneer veneers is obtained by thinly slicing the flitches laminated and bonded to each other in the direction intersecting the laminated surface.
[0006]
The thickness of the veneer is set with reference to the grain of the natural wood to be expressed. In addition, the veneer such as South Sea wood, which is the raw material, is usually bleached or dyed before dyeing in order to resemble the color tone of the natural wood to be expressed as closely as possible and to keep the color tone of the veneer after dyeing within a certain range. It is normal to decolorize.
[0007]
However, the pine grain pattern that is preferred as a coniferous tree, for example, the spring wood part has a color tone close to the normal wood color, while the autumn wood part has a translucent amber color, and the color difference from the spring wood part is different. Is obvious. Therefore, even if an artificial woody veneer is manufactured by the above-mentioned laminated flitch, the veneer constituting the spring wood part can be obtained relatively easily, but the veneer constituting the autumn wood part is obtained. Have difficulty.
[0008]
There is a method of using a translucent single plate constituting the autumn lumber part, but the cost becomes high.
[0009]
[Problems to be solved by the invention]
The present invention intends to solve the above problems by the method described below.
[0010]
[Means for Solving the Problems]
The present invention has solved the above problems by the method described below. In other words, in the laminated flitch for artificial wood veneer veneer in the conventional method, instead of the raw veneer constituting the autumn wood part, it is fluidized when hot pressed at a high temperature of 110 ° C. or more, and the resin molecules are polymerized. A paper impregnated with a thermosetting resin (hereinafter also simply referred to as resin) that hardens and becomes transparent is used.
[0011]
For example, dap resin-impregnated paper is a kraft paper impregnated with dap resin, which is opaque at room temperature, but fluidizes when hot-pressed at a high temperature of 110 ° C. or higher, and air bubbles contained inside the resin-impregnated paper As it is discharged, the resin molecules polymerize and cure, and become transparent. The resin that is fluidized, cured, and transparent has a temperature of 110 ° C. or higher is used when a normal wood veneer or a decorative veneer according to the present invention is applied to a veneer substrate such as plywood or fiberboard by hot pressing. This is because many of the adhesives used in the above process start curing at a temperature of 100 to 110 ° C. and exhibit adhesive strength. Moreover, since many of these adhesives are likely to deteriorate due to high heat at 200 ° C. or higher, the operating temperature range is approximately 110 to 200 ° C.
[0012]
As a suitable resin used for the impregnated paper in the present invention, in addition to the dapp resin, polyester resin, melamine resin, and two kinds selected from the above three kinds of resins, or a mixture of the above three kinds of resins are used. Can be mentioned. There are other suitable resins, but the above resins are suitable in consideration of the resin price, curing temperature, transparency, hardness after curing, physical properties, and the like. Among these, as shown in the examples below, a mixture of a dap resin and a polyester resin is most suitable.
[0013]
The procedure for obtaining the decorative board of the present invention will be described below. First, a wood veneer corresponding to a spring material part and resin-impregnated paper such as dup resin are alternately laminated and bonded to obtain a flitch. Next, the said flitch is sliced in the direction which cross | intersects a lamination surface, and a decorative veneer is obtained. Then, the decorative veneer is bonded to a wooden decorative board substrate such as plywood or fiberboard by hot pressing at 110 to 200 ° C. using a hot press. Then, the opaque resin-impregnated paper becomes transparent, and the underlying decorative board base material can be seen through, so it is transparent or translucent like the autumn wood part of natural wood such as pine, and expresses a three-dimensional grain. Can do. In addition, when the base material is a wooden base material, the pressure at the time of hot pressing is suitably 5 to 15 kg / cm 2 used in the production of a normal wooden decorative board. If the pressure is too high, the thickness may be reduced due to the heat pressure in the case of a wooden substrate.
[0014]
If the color tone of the decorative board with the artificial decorative veneer is different from the color tone of the natural name wood to be expressed because the color tone of the base material of the decorative board is different from the color tone of the natural name wood to be expressed, the decorative plate is appropriately used It is colored and painted so as to match the color of the natural wood that is intended to express the surface of the substrate. Instead of coloring the decorative board substrate, the adhesive used when applying the decorative veneer may be colored, or both the decorative board substrate and the adhesive may be colored.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
As the base paper of the resin-impregnated paper used in the present invention, an unbleached laminated base paper is most suitable. The reason is that the price is low, the resin can be easily impregnated, and the transparency when hot-pressed is high, and it is easy to express the color of autumn wood such as pine. The thickness is suitably 0.5 to 2 mm, which is substantially the same thickness as the wood veneer.
[0016]
The degree of transparency of the resin-impregnated paper can be adjusted by the resin impregnation rate. That is, the higher the resin impregnation rate, the higher the degree of transparency, and the lower the resin impregnation rate, the lower the degree of transparency. In the case of normal wood, there is a transition portion between the spring wood portion and the autumn wood portion that exhibits an intermediate color between the two. Therefore, the resin-impregnated paper with a high impregnation rate is used to represent the autumn wood part of the wood veneer veneer, and the resin-impregnated paper with a low impregnation rate is used to transition between the spring material part and the autumn material part. A part can also be expressed. By expressing this transition part, it is possible to manufacture an artificial decorative veneer that more closely resembles natural wood.
[0017]
That is, a wood veneer corresponding to the spring wood part, a resin-impregnated paper with a low impregnation rate, and a resin-impregnated paper with a high impregnation rate are laminated and bonded in this order many times to produce a flitch, and this flitch crosses the laminated surface. Slice it thinly in the direction to make an artificial veneer veneer. As shown in FIG. 1, the resulting artificial makeup veneer includes an opaque spring material part A, transition parts B, C, D from the spring material part to the autumn material part, a highly transparent autumn material part E, and autumn material. Transition parts F, G, H from the part to the spring part are arranged in this order in the width direction. The transition portion with low transparency and the autumn wood portion with high transparency can be seen through the decorative board substrate of the base, so that a three-dimensional feeling can be felt and a grain pattern very similar to natural wood can be expressed realistically.
[0018]
In addition, when manufacturing resin-impregnated paper, it is also possible to manufacture decorative veneers that closely resemble natural name wood by appropriately using a method of adding dyes or pigments to the resin to be impregnated and coloring the resin-impregnated paper. It is.
[0019]
In the present invention, a resin-impregnated paper having a high resin impregnation rate is obtained by impregnating a resin having a weight of 70% or more and less than 100% with respect to the weight of the paper. 30% or more and less than 70% by weight of resin. The resin can be impregnated with 100% or more, but not only the cost is increased, but it is not necessary to further increase the transparency. When the resin impregnation rate is 30% or less, it is hardly transparent even when hot-pressed.
[0020]
The transition part between the spring wood part and the autumn wood part in natural precious wood gradually approaches the autumn wood color as the color gets closer to the autumn wood part, so let's express it with an artificial veneer veneer In this case, as shown in the following examples, it is desirable to configure the transition portion using a resin-impregnated paper having a low resin impregnation rate. In addition, since the degree of transparency of the resin-impregnated paper can be adjusted by increasing or decreasing the resin impregnation rate, the color tone of the transition portion is gradually darkened by using two or three types of resin-impregnated paper whose resin impregnation rate is increased stepwise. It is possible to make it closer to the color of autumn wood, and furthermore, it can produce a decorative board with a grain pattern similar to natural wood.
[0021]
A moisture-curing urethane resin adhesive is most suitable as an adhesive used for flitch lamination. Moisture-curing urethane resin adhesive can bond wood with high water content and has sufficient water resistance after bonding, so it can be used for flitch manufacturing of artificial wood veneer veneer using wood veneer veneer. Widely used.
[0022]
【The invention's effect】
Impregnated paper having a resin impregnation rate of 30% or more becomes transparent or translucent when hot pressed. Therefore, an artificial decorative veneer obtained by thinly slicing a flitch obtained by alternately laminating and adhering this resin-impregnated paper with a wood veneer in a direction intersecting the laminated surface is hot-pressed on a decorative plate substrate such as plywood. When glued together, transparent or translucent resin-impregnated paper can be seen through the decorative board base material, so that it can feel a three-dimensional visual effect like natural wood, and it looks very similar to natural wood. A decorative board with a wood grain pattern can be manufactured.
[0023]
Since the degree of transparency can be adjusted by increasing or decreasing the resin impregnation rate, by using two or three types of resin impregnated paper whose resin impregnation rate is increased stepwise in the portion corresponding to the transition portion of the natural name tree, It is also possible to gradually bring the color tone closer to the dark autumn wood color, and it is possible to produce a decorative board with a grain pattern that closely resembles natural wood.
[0024]
【Example】
Width 110mm, length 4m, thickness 1mm, 0.15mm, 0.05mm respectively, 60 sheets of laminated base paper each with density 0.34g / cm 3 , 40 parts of dup resin, 60 parts of unsaturated polyester resin, polymerization Immerse in a resin solution containing 5 parts of benzoyl peroxide peroxide as an initiator and 5 parts of white carbon as a filler, squeeze excess resin with a squeeze roll, and set the resin impregnation rate to 100 for each. %, 65%, 50%, and 35%, and then dried with a hot air dryer at 80 ° C. for 15 minutes.
[0025]
Using a moisture-curing urethane resin adhesive, a fluffed sheet having the same dimensions as the above resin-impregnated paper and a thickness of 1.0 mm is repeatedly laminated and adhered in the order of A to H as follows. Sliced so as to intersect with each other, an artificial decorative veneer having a thickness of 0.3 mm was obtained.
[0026]
A. Garogar single plate thickness 1.0mm
B. Resin impregnated paper thickness 0.15mm, resin impregnation rate 35%
C. Resin impregnated paper thickness 0.15mm, resin impregnation rate 50%
D. Resin impregnated paper thickness 0.15mm, resin impregnation rate 65%
E. Resin impregnated paper thickness 1.0mm, resin impregnation rate 100%
F. Resin impregnated paper thickness 0.05mm, resin impregnation rate 65%
G. Resin impregnated paper thickness 0.05mm, resin impregnation rate 50%
H. Resin impregnated paper thickness 0.05mm, resin impregnation rate 35%
[0027]
Subsequently, the artificial decorative veneer was bonded to a 12 mm thick plywood with an acrylic resin adhesive using a hot press to obtain a decorative plate shown in the schematic diagram of FIG. The plywood was previously colored by applying to the surface a colorant prepared by mixing 10% of a pigment having the same color as the pine autumn wood part into an acrylic resin.
[0028]
A decorative board with an artificial decorative veneer pasted on its surface is transparent or part of the resin-impregnated paper corresponding to the autumn wood part of the pine and the part of the resin-impregnated paper corresponding to the transition part are subjected to hot pressure by hot pressing. Translucent, see through this transparent or translucent layer, the color of the dark colorant painted on the surface of the plywood substrate is changed from A corresponding to the spring material part to E corresponding to the autumn material part. As you can see, it becomes darker, so you can feel a three-dimensional feeling like a natural pine grain and a transitional part where the color tone gradually changes.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing the color tone of a decorative veneer according to the present invention.
[Explanation of symbols]
A Galogaro veneer B Resin impregnated paper C Resin impregnated paper D Resin impregnated paper E Resin impregnated paper F Resin impregnated paper G Resin impregnated paper H Resin impregnated paper
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03135998A JP3840782B2 (en) | 1998-02-13 | 1998-02-13 | Decorative plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03135998A JP3840782B2 (en) | 1998-02-13 | 1998-02-13 | Decorative plate and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11226907A JPH11226907A (en) | 1999-08-24 |
| JP3840782B2 true JP3840782B2 (en) | 2006-11-01 |
Family
ID=12329053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03135998A Expired - Fee Related JP3840782B2 (en) | 1998-02-13 | 1998-02-13 | Decorative plate and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3840782B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5011933B2 (en) * | 2005-11-21 | 2012-08-29 | Ｄｉｃ株式会社 | Moisture-cure polyurethane hot-melt adhesive for wet veneer and cosmetic product using the same |
| JP6078962B2 (en) * | 2012-03-21 | 2017-02-15 | ヤマハ株式会社 | Acoustic device casing and laminated plywood |
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1998
- 1998-02-13 JP JP03135998A patent/JP3840782B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11226907A (en) | 1999-08-24 |
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