JPS5857907A - Manufacture of artificial grain decorative board into which synthetic resin is impregnated - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は合成樹脂含浸人工祭日化粧単板を用いた化粧板
の製造方法に関し、その目的は人工祭日化粧単板の特質
と樹脂含浸木材の特質を結合して天然木化粧単板様のＷ
ＰＯ化粧板を多量にかつコンスタントに製造することに
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing decorative veneers using synthetic resin-impregnated artificial holiday decorative veneers, and its purpose is to combine the characteristics of artificial holiday decorative veneers with the characteristics of resin-impregnated wood to produce natural wood. Decorative veneer-like W
To constantly manufacture PO decorative boards in large quantities.

従来、人工祭日化粧単板に合成樹脂液を注入して硬化さ
せて強化模様板を製造する方法は特開昭５２−１３９７
０４号により提案されている。Conventionally, a method for manufacturing reinforced pattern boards by injecting synthetic resin liquid into artificial holiday decorative veneer and curing it was disclosed in Japanese Patent Application Laid-Open No. 52-1397.
It is proposed by No. 04.

所が該方法の原料単板は何らの前処理を施すことなくそ
のまま積層接着して７リツチと化し、薄削して人工祭日
化粧単板とした後、減圧釜に入れ合成樹脂液を注入する
工程であるため単板中に合成樹脂液を充分に含浸するこ
とが出来ず、又原料単板自体辺材部や心材部あるいは生
育条件と同−樹種でも原木によって色違いが有るから原
料単板を色別に選別して使用しなければならない。さら
に無処理の原料単板には木材の放射組識力、（「斑」と
なりで現われるが、該部分には合成樹脂液は充分に含浸
されない。However, the raw material veneers for this method are laminated and bonded as they are without any pre-treatment to make 7-rich veneers, thinned to make artificial holiday decoration veneers, and then placed in a vacuum pot and injected with synthetic resin liquid. Because it is a process, it is not possible to sufficiently impregnate the synthetic resin liquid into the veneer, and the raw material veneer itself has different colors depending on the sapwood, heartwood, and growth conditions even if the tree species is the same. must be used by sorting them by color. Furthermore, the untreated raw material veneer shows the radiation structure of the wood ("spots"), but these areas are not sufficiently impregnated with the synthetic resin liquid.

その結果従来の製造方法で得られる人工祭日化粧単板は
部分的な樹脂含浸ムラに起因する「鎖目」と「色違」さ
らには「斑」が現われ透明性も悪く商品価値の低い樹脂
含浸人工祭日化粧単板しか得られなかった〇 そこで本発明では上記の問題点を検討し、対米的な方法
を完成したものである。As a result, the artificial holiday decorative veneer obtained by conventional manufacturing methods has "chain marks", "differences in color", and "spots" due to partial uneven resin impregnation, resulting in poor transparency and low commercial value. Only artificial holiday decorative veneers could be obtained. Therefore, in the present invention, the above problems were investigated and a method suitable for the United States was completed.

すなわち本発明は木材単板をソーダ類に浸漬して脱脂処
理後、過酸化水素水により酸白し、−洗処理後乾燥して
原料単板とし、ついで該原料単板を隠蔽効果の優れた着
色剤を混入した接層剤を介して一対の型板間で積層ＭＩ
着して７リツチと化して後、該７リツチの接着剤層が木
目模様となる様に製材し、ついで該製材面を薄削して人
工祭日化粧単板を得、つぎに該化粧重板に透明性の重合
型合成樹脂液を含浸後、加熱、加圧処理して硬化させ、
合成樹脂金が単板とし、つづいて該合成樹脂含浸重板を
求める木の秋材部色又は春材色に着色した基板上に接着
剤を介して貼着するこ、とを特徴とする合成樹脂含浸人
工杢目化粧仮の製造方法に係わり、その最も特徴とする
所は脱脂と漂白処理を充分に行なった原料単板を用いて
人工祭日化粧単板を製造することにより合成樹脂液を単
板内に容易にかつ完全に含浸させることにある。That is, in the present invention, a wood veneer is immersed in soda, degreased, acid whitened with hydrogen peroxide solution, washed and dried to obtain a raw material veneer, and then the raw material veneer is made into a raw material veneer that has an excellent concealing effect. Laminated MI between a pair of templates via an adhesive containing a colorant
After the 7-rich adhesive layer is made into 7-rich pieces, the wood is sawn so that the adhesive layer of the 7-rich pieces has a wood grain pattern, and then the sawn wood surface is thinned to obtain an artificial holiday decorative veneer, and then the decorative laminated veneer is obtained. is impregnated with a transparent polymeric synthetic resin liquid, and then cured by heating and pressure treatment.
A synthetic resin composition characterized in that the synthetic resin gold is made into a single board, and then the synthetic resin-impregnated heavy board is adhered to a substrate colored in the autumn wood color or spring wood color of the desired tree using an adhesive. It is related to the manufacturing method of resin-impregnated artificial heathered cosmetic temporary, and its most distinctive feature is that the artificial holiday decorative veneer is manufactured using raw material veneer that has been thoroughly degreased and bleached, and the synthetic resin liquid is simply removed. The purpose is to easily and completely impregnate the inside of the board.

以下本発明を更に詳述する。The present invention will be explained in more detail below.

まず単板は原木をスライサーや２−タリーレース等の剥
削機で薄削した常用のものが使用出来るが、ａｔａｔは
比較的木目模様が目立たないもので、かつ白色系のもＯ
が好ましい。厚さは０２〜２．０＋ａｗｒ程度の範囲で
ある。なお求める化粧板の木目幅に変化を付与したい場
合は部分的に厚さの異なる単板を組み合せたり、エンボ
ス加工等を施した単板を組み合せて用いても良い。First of all, you can use regular wood veneers that are thinly sliced from logs using a slicer or a scraping machine such as a 2-Tally Lace, but atat wood grain patterns are relatively inconspicuous, and white veneers can also be used.
is preferred. The thickness ranges from about 02 to 2.0+awr. If you want to vary the grain width of the desired decorative board, you may use a combination of veneers with partially different thicknesses or a combination of veneers that have been embossed or the like.

上記の単板をまず炭酸ソーダやカセイソーダ等のソーダ
類に界面活性剤を添加した溶液中に浸漬して単板中の樹
脂成分を脱脂する。その具体的な方法としてはソーダ類
溶液で単板をα５〜１時間程度煮沸するか、Ｓ５０〜６
０℃程度の溶液に数時間浸漬処理するとよい。The above-mentioned veneer is first immersed in a solution of soda such as soda carbonate or caustic soda to which a surfactant is added to degrease the resin components in the veneer. The specific method is to boil the veneer in a soda solution for about 1 hour, or
It is preferable to immerse it in a solution at about 0°C for several hours.

ついで該脱脂処理単板を過酸化水素水に浸漬して漂白す
る。過酸化水素水には少量の界面活性剤や消泡剤等を混
入し単板を髪漬後煮沸するか５０〜７０℃で１０時間程
度放置すると良い０つぎに該漂白単板を沸騰水中に″浸
漬し拳仮に付着した加剰の過酸化水素や界面活性剤等を
取り除き、単板の黄変を防止する。つづいて該単板を乾
燥し、含水率を１０〜１５％＆１度に＃整して原料単板
とする。なお単板は漂白、湯洗処理後染色液を注入して
所望の色に染色後乾燥して原料単板としても良い。The degreased veneer is then immersed in a hydrogen peroxide solution to bleach it. It is best to mix a small amount of surfactant, antifoaming agent, etc. into the hydrogen peroxide solution and boil the veneer after soaking it, or leave it at 50 to 70°C for about 10 hours.Next, place the bleached veneer in boiling water. The veneer is soaked to remove excess hydrogen peroxide, surfactants, etc. that have adhered to it, and prevent yellowing of the veneer.Next, the veneer is dried and conditioned to a moisture content of 10-15% & 1 degree. The veneer may be bleached, washed with hot water, injected with a dyeing solution, dyed to a desired color, and dried to obtain a raw material veneer.

つぎに該原料単板を１１１１８効果の擾れた着色剤を混
入した接着剤を介して一対の型板間で積層接着してフリ
ッチとする。Next, the raw material veneer is laminated and bonded between a pair of templates using an adhesive mixed with a colorant having a 11118 effect to form a flitch.

隠蔽効果の浸れた着色剤とは主としてチタン白をさし、
これに弱千の着色顔料を混入し、求める木目模様の春材
部色又は秋材部色となる様にしておくと良い。上記構成
において隠蔽効果の優れた着色剤を接着剤に混入して用
いるのは、化粧単板とした後透明性の重合型合成樹脂液
を含浸すると化粧単板全体が透明化し木目模様が不鮮明
になることを防止するためである。チタン白の接着剤重
量に対する添加量は約０５〜２０％程度であれば効果的
である。なお型板の形状及び原料単板の組合せ並びに積
層接着条件等は、従来と同様である。The colorant with concealing effect mainly refers to titanium white,
It is advisable to mix a weak amount of coloring pigment into this to obtain the desired spring wood color or autumn wood color of the desired wood grain pattern. In the above structure, the reason why a coloring agent with an excellent hiding effect is mixed into the adhesive is that if the decorative veneer is made into a decorative veneer and then impregnated with a transparent polymerized synthetic resin liquid, the entire decorative veneer becomes transparent and the wood grain pattern becomes unclear. This is to prevent this from happening. It is effective if the amount of titanium white added to the weight of the adhesive is approximately 0.5 to 20%. Note that the shape of the template, the combination of raw material veneers, lamination bonding conditions, etc. are the same as in the past.

つぎに該７リツチの接着剤層が木目模様となる様に製材
し、ついで該製材面を薄削して人工祭日化粧単板を得る
。部側及び薄削は常用の製材機とスライせ−等の剥削機
を用い、厚さα２〜ｚｏｍａ＋程度に薄削する。Next, the wood is sawn so that the 7-rich adhesive layer has a wood grain pattern, and then the sawn surface is thinly shaved to obtain an artificial holiday decorative veneer. For the part side and thinning, use a regular sawmill and a scraping machine such as a slicing machine to reduce the thickness to about α2 to zoma+.

ついで該化粧単板を減圧加圧し得る容器に密封して透明
性の重合型合成樹脂液を含浸する。The decorative veneer is then sealed in a container that can be pressurized under reduced pressure and impregnated with a transparent polymeric synthetic resin liquid.

透明性の重合型含浸樹脂の種類としては不飽和ポリエス
テル樹脂やメチルメタアクリレートプレポリマーあるい
はビニール系樹脂さらにはメラミン樹脂やフェノール樹
脂など常用の樹脂か使用出来る。As the transparent polymerizable impregnating resin, unsaturated polyester resin, methyl methacrylate prepolymer, vinyl resin, and commonly used resins such as melamine resin and phenol resin can be used.

含浸方法は特に限定するものではないが、単板の内部に
まで充分浸透せしめるために真空加圧含浸方法が好まし
い。なお必要により樹脂を透明性の染料で所望の色に着
色しておいても良い。The impregnation method is not particularly limited, but a vacuum pressure impregnation method is preferred in order to allow sufficient penetration into the interior of the veneer. Note that, if necessary, the resin may be colored in a desired color with a transparent dye.

つぎに該樹脂含浸単板を加熱加圧処理して硬化させる。Next, the resin-impregnated veneer is cured by heat and pressure treatment.

含浸樹脂を硬化させる方法として加熱加圧方式を用いる
のは単板の内部まで充分に樹脂を軟化流動せしめて完全
に含浸させていわゆる「鎖目」の発生を防止し、木質部
の透明性を向上させるためである。装置としては亭盤の
ネットプレスを用いると良い。The heat and pressure method used to harden the impregnated resin allows the resin to sufficiently soften and flow to the inside of the veneer, ensuring complete impregnation, preventing the formation of so-called "chains" and improving the transparency of the wood part. This is to make it happen. It is best to use a Teiban net press as a device.

つぎに該合成樹脂含浸単板を求める樹種の萩材部色又は
春材線色に着色した基板上に接着剤を介して貼着し、求
める合成樹脂含浸人工祭日化粧板を得る。基板を求める
樹種の秋材部色又は春材線色に着色するのは、合成樹脂
含浸単板の木質部が牛透明であり、かつ単板の接着剤層
が春材線色又は秋材部色にすでに着色しされているため
基板上に貼着した時木質部を秋材部又は春材部、接着剤
層部分を春材部又は秋材部として表現し、求める天然木
の見掛けに類似した合成樹脂含浸人工祭日化粧板を得る
ためである。Next, the synthetic resin-impregnated veneer is adhered via an adhesive onto a substrate colored in the color of the Japanese clover or spring wood of the desired tree species, to obtain the desired synthetic resin-impregnated artificial holiday decorative board. The reason why the wood of the desired tree species is colored in the autumn wood line color or the spring wood line color is that the wood part of the synthetic resin-impregnated veneer is transparent, and the adhesive layer of the veneer is colored in the spring wood line color or the autumn wood line color. Since the wood has already been colored, when pasted on the substrate, the wood part is expressed as autumn wood part or spring wood part, and the adhesive layer part is expressed as spring wood part or autumn wood part, and it is possible to create a composite that resembles the appearance of the desired natural wood. This is to obtain a resin-impregnated artificial holiday decorative board.

なお基板としては常用の合板やパーティクルボード、ハ
ードボードなどの木質基板や石綿スレートや石膏ボード
などの無材質基板あるいは厚紙などで特に限定するもの
ではない。Note that the substrate is not particularly limited, and may be a commonly used wooden substrate such as plywood, particle board, or hardboard, a non-material substrate such as asbestos slate or gypsum board, or cardboard.

着色の方法としては基板・・表面を直接着色して硬化時
に透明化する接着剤を用いても良いし、着色剤を混入し
た接着剤を用いることも出来る。As a method of coloring, it is possible to directly color the surface of the substrate and use an adhesive that becomes transparent upon curing, or it is also possible to use an adhesive mixed with a coloring agent.

接着剤としては常用のウレタン樹脂系やエポキシ樹脂系
あるいはフェノール樹脂糸、メラミン樹脂系などが用い
られる。As the adhesive, commonly used urethane resin, epoxy resin, phenol resin thread, melamine resin, etc. are used.

本発明は以上の様な構成であるため以下の様な効果を有
している。Since the present invention has the above configuration, it has the following effects.

（１）　　単板を脱脂処理後漂白、湯洗処理し汗の俊樹
脂含浸するので単板を構成する木材細胞間の挾雑物や樹
脂類あるいは色素類は取り除かれて単板の色ぞろえが容
易であるとともに放射組繊も取り除かれるので「斑」を
なくすることが出来て単板の見掛けを大−に向上させ、
さらに合成樹脂の含浸が極めて容易になり、木質部の透
明性も向上する。(1) After the veneer is degreased, it is bleached, washed with hot water, and impregnated with sweat resin, so that the foreign matter between the wood cells, resins, and pigments that make up the veneer are removed, and the color of the veneer is matched. Not only is it easy to remove the radial fibers, it also eliminates "spots" and greatly improves the appearance of the veneer.
Furthermore, it becomes extremely easy to impregnate the synthetic resin and improves the transparency of the wood part.

幻　原料単板を積層接着して人工祭日化粧単板を製造す
る時、接着剤層にｇｉ１ｗ＆性に浸れた着色剤を混入し
て求める木目模様の春材線色又は秋材部色とし、木質部
が軟材部又は春材部となる様に合成樹脂を含浸して透明
化するため表現される木目模様は天然木目化粧単板同様
の深みを有する。Illusion When manufacturing artificial holiday decorative veneers by laminating and bonding raw material veneers, a coloring agent soaked in GI1W and color is mixed into the adhesive layer to create the desired wood grain pattern spring wood line color or autumn wood color, and the wood part is colored. The wood is impregnated with a synthetic resin to make it transparent so that it becomes a soft wood part or a spring wood part, so the wood grain pattern that is expressed has the same depth as natural wood grain decorative veneer.

０）単板に含浸した合成樹脂の硬化を加熱加圧処理によ
り行なうため従来の加熱処理や電子線、放射線のみによ
る硬化方法に比べ単板中への樹脂の浸透が完全でありか
つ硬化も均一に行うことが出来て均質な合成樹脂含浸化
粧単板を得ることが出来る。0) Since the synthetic resin impregnated into the veneer is cured by heat and pressure treatment, the resin penetrates into the veneer more completely and is more uniformly cured than conventional curing methods that use only heat treatment, electron beams, or radiation. It is possible to obtain a homogeneous synthetic resin-impregnated decorative veneer.

以下本発明の実施例を記す。Examples of the present invention will be described below.

実施例　（１） 厚さ１２ｍｍのアガチス単板を下記配合のソーダー溶液
に浸漬し、１時間煮沸して脱脂処理を行なった。Example (1) A 12 mm thick agathis veneer was immersed in a soda solution having the following composition and boiled for 1 hour to perform a degreasing treatment.

溶比　　傘板：溶液二１：１゜ ついで該単板を下記配合の過酸化水素水中に浸漬し、１
時間煮沸して漂白後、肺騰水中で３０分聞湯洗処理した
。Melting ratio: Umbrella plate: Solution 2: 1:1° Then, the veneer was immersed in hydrogen peroxide water with the following composition, and 1:1 solution was added.
After boiling for an hour and bleaching, the lungs were washed in boiling water for 30 minutes.

溶比　　単板：溶液：１：：ＬＯ つぎに該単板を乾燥し含水率を１２〜１５％に調整して
原料単板とした。Melting ratio: veneer: solution: 1::LO Next, the veneer was dried and the water content was adjusted to 12 to 15% to obtain a raw material veneer.

ついで該原料単板をチタン白Ｌ５Ｊｉｊｊｉ％と黄色顔
料を少量添加層だ尿素樹脂系接着剤を介して一対の平盤
間に積層し１５　ｋ＆４ｄ−６時間−室蟲の条件で圧締
接着して単板積層７リツチとした。Next, the raw material veneer was laminated between a pair of flat plates with a layer of titanium white L5Jijji% and a small amount of yellow pigment added via a urea resin adhesive, and was pressed and bonded under the conditions of 15 k&4d - 6 hours - room insects. The laminated veneer was 7 rich.

つぎに該フリッチの接着剤層に対して約８度の角度で斜
めに製材して求める柾目模様面を得、ついで該製材面を
スライサーで厚さα５關ニ剥削して人工柾目化粧単板を
得た。Next, lumber is sawn diagonally at an angle of about 8 degrees to the adhesive layer of the flitch to obtain the desired straight-grain patterned surface, and then the sawn lumber surface is peeled to a thickness of α5 with a slicer to form an artificial straight-grain decorative veneer. Obtained.

つぎに該化粧単板を含浸釜に封入し、真空ポンプで３０
分関１０＋＋ｏａＨｇに減圧後、透明な不飽和ポリエス
テル樹脂をスチレンに溶解したものを注入し、単板を完
全にその中に？ｌ！［Ｌ、Ｑ　Ｏｋｇ／ｃｓｆで加圧し
て１時間放置した。単板を含浸釜より取す出して後ホッ
トプレスにより１３０℃−ｚ　ｏ　ｋｇ／ｃｊ−５分間
加熱加圧して樹脂を硬化させて樹脂含浸単板を得た。つ
づいて該樹脂含浸単板を濃褐色に着色した合板基板上に
ウレタン樹脂系接着剤を介して熱圧接着し、求める松柾
目模様の人工祭日樹脂含浸化粧板を得た。Next, the decorative veneer was sealed in an impregnating pot and heated with a vacuum pump for 30 minutes.
After reducing the pressure to 10++ oaHg, a transparent unsaturated polyester resin dissolved in styrene is injected, and the veneer is completely placed inside it. l! [L, Q Pressurized at Okg/csf and left for 1 hour. After the veneer was taken out from the impregnation pot, it was heated and pressed at 130°C and zo kg/cj for 5 minutes using a hot press to harden the resin, thereby obtaining a resin-impregnated veneer. Subsequently, the resin-impregnated veneer was hot-press bonded onto a dark brown colored plywood substrate via a urethane resin adhesive to obtain an artificial holiday resin-impregnated decorative board with the desired pine straight grain pattern.

実施例　（２） 厚さＬＯｍｌｍのラミン単板を下記配合のソーダー溶液
に浸漬し６０℃で１２時間脱脂処理した０溶比　単板二
溶液＝ｌ：１ａ つぎに該単板を下記配合の過酸化水素水中に１０時間浸
漬して漂白後、Ｓ謔水中で１時間湯洗処理した。Example (2) A Ramin veneer with a thickness of LO mlm was immersed in a soda solution with the following composition and degreased at 60°C for 12 hours. Two solutions of veneer with a zero solubility ratio = 1:1a were then soaked in a soda solution with the following composition. After bleaching by immersing it in hydrogen oxide water for 10 hours, it was washed in hot water for 1 hour.

溶比　単板：溶液＝　ｌ　；　１０ ついで該単板を染色溶器に封入して黄白色に染色後乾燥
し含水率を１２〜１５％程度に１ｌｌｌｌ整して原料単
板とした。Melting ratio: veneer: solution = 1; 10 Then, the veneer was placed in a dyeing vessel, dyed yellow-white, dried, and adjusted to a moisture content of about 12 to 15% to obtain a raw veneer.

つぎに該原料単板をチタン白１重量襲と黄褐色顔料を少
蓋添加した尿素樹脂系接着剤を介して一対の凹凸型板間
に積層し２０　ｋｇ／ａＩＩ−５時間−室温の条件で圧
締接着して単板積層７リツチとした。Next, the raw material veneer was laminated between a pair of concave and convex mold plates using a urea resin adhesive containing one weight of titanium white and a small amount of yellowish brown pigment, and was then laminated at 20 kg/a II for 5 hours at room temperature. It was pressed and bonded to form a 7-rich veneer laminate.

ついで該フリッチの接着剤層が求める木目ＩｄＡ様とな
る様に製材し、該製材面をスライサーで厚さα４ニーに
剥削して人工板目化粧単板を得た。Next, lumber was sawn so that the adhesive layer of the flitch had the desired wood grain IdA, and the lumber surface was scraped with a slicer to a thickness of α4 knee to obtain an artificial grain decorative veneer.

つぎに該化粧単板を実施例（１）と同様の方法により透
明性の不飽和ポリエステル樹脂を含浸後ホットプレスで
熱圧して硬化させた。Next, the decorative veneer was impregnated with a transparent unsaturated polyester resin in the same manner as in Example (1), and then heated and cured using a hot press.

つづいて該樹脂含浸単板を濃褐色に着色した接着剤を介
してパーティクルボード基板上に接着し、求める神代ケ
ヤキ調の板目模様人工杢目樹脂含浸化粧仮を得た。Subsequently, the resin-impregnated veneer was adhered to a particle board substrate using a dark brown adhesive to obtain a resin-impregnated decorative temporary with an artificial grain pattern in the style of Jindai zelkova.

出１ｔｉ＋人段谷産業林式会住 イ彎２者段谷弘忠Exit 1ti + person step valley industrial forest ceremony meeting residence Hirotada Dantani, 2nd player

Claims (1)

【特許請求の範囲】[Claims] Ｌ　木材単板をソーダ類に浸漬して脱脂処理後、ｉ酸化
水巣水により娘白し、湯洗処理後乾燥して原料単板とし
、ついで該原料単板を１ｌｓｌ献効果の擾れた着色剤を
混入した接着剤を介して一対の型板間で積層接着して７
リツチと化して後、該７リツチの接着剤層が木目模様と
なる様に製材し、ついで該製材面を薄削して人工祭日化
粧単板を得、つぎに該化粧単板に透明性の重合型合成樹
脂液を含浸後、加熱、加圧処理して硬化させ、合成樹脂
含浸単板とし、つづいて該合成樹脂含浸単板を求める樹
種の秋材線色又は響材色に着色した基板上に接着剤を介
して貼着することを特徴とする合成樹脂含浸人工祭日化
粧板の製造方法。L A wood veneer was immersed in soda, degreased, whitened with oxidized water, washed with hot water and dried to produce a raw material veneer, and then the raw material veneer was soaked with 1lsl concentration effect. 7. Laminated and bonded between a pair of templates using adhesive mixed with colorant.
After turning the 7-rich adhesive layer into a wood grain pattern, the lumber is sawn so that the adhesive layer of the 7-rich wood has a wood grain pattern, and then the sawn lumber surface is thinned to obtain an artificial holiday decorative veneer, and then the decorative veneer is coated with transparent After being impregnated with a polymerized synthetic resin liquid, the substrate is cured by heating and pressure treatment to form a synthetic resin-impregnated veneer, and then colored in the autumn wood wire color or the sound wood color of the tree species from which the synthetic resin-impregnated veneer is desired. A method for producing a synthetic resin-impregnated artificial holiday decorative board, which comprises adhering it to the top using an adhesive.