JP2002019025A - Method for producing woody decorative plate - Google Patents
Method for producing woody decorative plateInfo
- Publication number
- JP2002019025A JP2002019025A JP2000205455A JP2000205455A JP2002019025A JP 2002019025 A JP2002019025 A JP 2002019025A JP 2000205455 A JP2000205455 A JP 2000205455A JP 2000205455 A JP2000205455 A JP 2000205455A JP 2002019025 A JP2002019025 A JP 2002019025A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- layer
- decorative
- printing
- absorbing layer
- 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
- Finished Plywoods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、木質化粧板の製造
方法に関し、特に、化粧基板の表面に水性インクによる
印刷により化粧加工を行う技術分野に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorative wooden board, and more particularly to a technique for performing decorative processing on a surface of a decorative substrate by printing with a water-based ink.
【０００２】[0002]
【従来の技術】従来より、突板や無垢材等の化粧基板表
面に局部的な柄付けを行う場合、転写印刷、スクリーン
印刷、フレキソ印刷、オフセット印刷等の有版方式の印
刷方法が一般に知られている。この方式の印刷方法で
は、広い面積の印刷を大量に行うのに適しているが、そ
の反面、印刷のために版を作る必要があるので、特注製
品や小ロット製品に対し素早い対応が難しいという問題
がある。2. Description of the Related Art Conventionally, when local patterning is performed on the surface of a decorative substrate such as a veneer or a solid material, a printing method using a plate printing method such as transfer printing, screen printing, flexographic printing, and offset printing is generally known. ing. This type of printing method is suitable for printing large areas in large quantities, but on the other hand, it is necessary to make plates for printing, so it is difficult to respond quickly to custom-ordered products and small lot products. There's a problem.
【０００３】一方、近年、例えば特開平９―３２３４３
４号や特開平１０―１２８２３１号の各公報に示される
ように、インクジェット方式によるダイレクト印刷法が
提案されており、このインクジェット方式では、被印刷
物に接触せずに印刷できるので、凹凸のある基板に対し
ても印刷できるという利点がある。On the other hand, in recent years, for example, Japanese Patent Laid-Open No. 9-32343
No. 4, Japanese Patent Application Laid-Open No. 10-128231, and JP-A-10-128231, a direct printing method using an ink jet method has been proposed. In this ink jet method, printing can be performed without coming into contact with a printing substrate, and therefore, a substrate having unevenness is used. There is an advantage that printing can be performed for
【０００４】ところで、上記インクジェット方式におけ
るインクに水性インクを用いることが主流であり、その
ため、紙やフィルム等の印刷では、例えば親水性樹脂に
無機フィラーを添加したインク吸収層が表面に設けられ
たインクジェット用コート紙（フィルム）と称されるも
のが一般に使用され、それに関して各種のものが提案さ
れている。[0004] By the way, water-based inks are mainly used as inks in the above-mentioned ink-jet system. Therefore, in printing on paper, film, or the like, for example, an ink absorbing layer in which an inorganic filler is added to a hydrophilic resin is provided on the surface. What is called an inkjet coated paper (film) is generally used, and various types of paper have been proposed.
【０００５】[0005]
【発明が解決しようとする課題】そして、上記インクジ
ェット用コート紙（フィルム）のインク吸収剤を用いる
ことで、インクジェット方式によるダイレクト印刷法に
より基板の表面に直接印刷することが考えられる。しか
し、上記インク吸収層は、水性インクの主たる溶媒であ
る水を吸収する能力が具備されているので、耐水性が悪
く、そのインク吸収剤をそのまま化粧板の用途に転用し
ただけでは、建材として耐え得るだけの耐水性を付与す
ることが困難であり、密着性等、他の性能についても同
様である。Then, it is conceivable to directly print on the surface of the substrate by a direct printing method using an ink jet method by using the ink absorbing agent of the coated paper (film) for ink jet. However, since the ink absorbing layer is provided with the ability to absorb water, which is the main solvent of the aqueous ink, it has poor water resistance, and if the ink absorbent is simply diverted to a decorative board as it is, it is used as a building material. It is difficult to impart sufficient water resistance, and the same applies to other properties such as adhesion.
【０００６】本発明は斯かる点に鑑みてなされたもの
で、その目的は、上記水性インクを用いてダイレクト印
刷法により木質化粧板を製造する方法に改良を加えるこ
とにより、化粧板について特注製品や小ロット製品等の
顧客の多用なニーズに対応できるようにするとともに、
水性インクで印刷するにも拘わらず、化粧板として使用
するに耐え得る耐水性や密着性等の性能が良好に得られ
るようにすることにある。[0006] The present invention has been made in view of the above points, and an object of the present invention is to improve the method of manufacturing a wood-based decorative board by a direct printing method using the above-described water-based ink, so that the decorative board can be custom-ordered. To meet the diversified needs of customers such as and small lot products,
An object of the present invention is to ensure that performances such as water resistance and adhesiveness that can withstand use as a decorative board despite printing with an aqueous ink can be obtained favorably.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１の発明では、基材に天然木突板を貼り合
わせた化粧材又は天然木無垢材からなる化粧基板の表面
に目止めシーラー剤を塗布して目止め層を形成した後、
インクを吸収する透明ないし半透明のインク吸収層を設
ける。次いで、このインク吸収層上に水性インクにより
絵柄模様を印刷して乾燥させた後、イソシアネート基が
過剰となるように配合された透明ウレタン塗料を塗布す
る。In order to achieve the above object, according to the first aspect of the present invention, the surface of a decorative substrate made of a decorative material in which a natural wood veneer is bonded to a base material or a natural wood solid material is used. After applying a stop sealer to form a filling layer,
A transparent or translucent ink absorbing layer for absorbing ink is provided. Next, after a pattern is printed on the ink absorbing layer with an aqueous ink and dried, a transparent urethane coating compounded so as to have an excess of isocyanate groups is applied.
【０００８】この構成により、化粧基板の表面に目止め
シーラー剤の塗布による目止め層が形成されて、その上
にインク吸収層が設けられているので、均一なインク吸
収層を形成して印刷適性を向上させることができる。し
かも、化粧板において化粧基板側（下側）から水分がイ
ンク吸収層に移行するのが目止め層によって遮られるよ
うになり、化粧板における印刷層の耐水性が向上する。[0008] According to this configuration, the sealing layer is formed by applying a sealing sealant on the surface of the decorative substrate, and the ink absorbing layer is provided thereon, so that a uniform ink absorbing layer is formed and printed. Suitability can be improved. Moreover, in the decorative board, the migration of moisture from the decorative substrate side (lower side) to the ink absorbing layer is blocked by the sealing layer, and the water resistance of the printed layer on the decorative board is improved.
【０００９】また、インク吸収層上にイソシアネート基
過剰のウレタン塗料が塗布されるので、このウレタン塗
料の塗装膜における過剰のイソシアネート基が印刷層の
インクないしインク吸収層内の水酸基と反応して、印刷
層の密着性及び耐水性が向上する。Further, since an urethane paint containing an excess of isocyanate groups is applied onto the ink absorbing layer, the excess isocyanate groups in the coating film of the urethane paint react with the ink in the printing layer or the hydroxyl groups in the ink absorbing layer, The adhesion and water resistance of the printing layer are improved.
【００１０】以上により、化粧板として使用するに耐え
得る十分な性能が得られるとともに、印刷により化粧板
について特注製品や小ロット製品等の顧客の多用なニー
ズへの対応が可能となる。As described above, sufficient performance that can withstand use as a decorative board can be obtained, and printing can meet various needs of customers such as custom-ordered products and small-lot products.
【００１１】さらに、上記インク吸収層が透明ないし半
透明であり、印刷後に塗布される塗料も透明ウレタン塗
料であるので、化粧基板表面の模様及び印刷の絵柄を化
粧板表面から見ることができ、木質化粧基板の自然な木
目を活かしながら、好みの柄を印刷することで、好まし
い意匠を有する化粧板が容易に得られる。Further, since the ink absorbing layer is transparent or translucent, and the paint applied after printing is also a transparent urethane paint, the pattern on the decorative substrate surface and the printed pattern can be seen from the decorative plate surface, By printing a desired pattern while utilizing the natural grain of the woody decorative board, a decorative board having a preferable design can be easily obtained.
【００１２】請求項２の発明では、インク吸収層上に水
性インクによる印刷をインクジェット方式で行う。この
ことで、化粧板の表面に精繊な画像を精細に直接形成し
て化粧板の様々な絵柄を容易に表現でき、特注製品や小
ロット製品等の顧客の多用なニーズへの対応がより一層
容易になる。According to the second aspect of the present invention, printing with an aqueous ink is performed on the ink absorbing layer by an ink jet method. As a result, a fine image can be formed directly on the surface of the decorative board in a finely detailed manner, and various patterns on the decorative board can be easily expressed, thereby responding to the frequent needs of customers such as custom-ordered products and small lot products. It becomes even easier.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施形態に係る木
質化粧板の製造方法について説明する。この実施形態の
方法では、図１（尚、この図１は、製造された後の木質
化粧板Ａの断面構造を示している）に示すように、化粧
基板１の表面に目止めシーラー剤を塗布して目止め層５
を形成した後、インクを吸収する透明ないし半透明のイ
ンク吸収層７を設け、次いで、このインク吸収層７上に
水性インクによりデジタル画像データによる絵柄模様を
インクジェット方式で印刷し、その乾燥後に、イソシア
ネート基が過剰となるように配合された透明ウレタン塗
料による塗装を行ってウレタン塗膜層１１を形成し、そ
の上に中塗り層１３及び上塗り層１４を順に設ける。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method for manufacturing a wooden decorative board according to an embodiment of the present invention will be described. In the method of this embodiment, as shown in FIG. 1 (FIG. 1 shows the cross-sectional structure of the wooden decorative board A after being manufactured), a sealing sealant is applied to the surface of the decorative board 1. Apply and fill layer 5
Is formed, a transparent or translucent ink absorbing layer 7 that absorbs ink is provided, and then a pattern is printed on the ink absorbing layer 7 with a water-based ink using digital image data by an inkjet method. A urethane coating layer 11 is formed by coating with a transparent urethane coating compounded so that the isocyanate group becomes excessive, and an intermediate coating layer 13 and an overcoat layer 14 are sequentially provided thereon.
【００１４】以上の方法の詳細を説明すると、上記化粧
基板１としては、合板、木質繊維板、無機質板等、化粧
板の基材として一般的に使用されている基材２（ボー
ド）に天然木突板３を貼り合わせた化粧材が用いられ
る。また、この他、化粧基板１として天然木無垢材を用
いてもよい。The details of the above method will be described. As the decorative substrate 1, a plywood, a wood fiber board, an inorganic plate, or the like, which is generally used as a substrate of a decorative board, is a natural board. A decorative material to which a wooden veneer 3 is attached is used. In addition, as the decorative substrate 1, solid natural wood may be used.
【００１５】（目止め処理）まず、この化粧基板１の表
面上に目止め層５を形成して目止め処理を行う。すなわ
ち、化粧基板１の表面に対し後述の如くインク吸収剤を
塗布するに当たり、そのインク吸収剤の吸込みムラが生
じると、印刷ムラができるので、その防止のために目止
め剤を塗布する（目止め処理がないと塗布ムラや発泡が
生じる）。(Sealing process) First, a sealing layer 5 is formed on the surface of the decorative substrate 1 and a sealing process is performed. That is, when the ink absorbent is applied to the surface of the decorative substrate 1 as described later, if unevenness in the suction of the ink absorbent occurs, printing unevenness is generated. Without the stop treatment, uneven coating and foaming occur).
【００１６】目止め剤としては、上記目止め効果の他に
耐水性や密着性等、化粧板としての性能を発揮できるも
の、例えばウレタン系、ポリエステル系、アクリル系、
エポキシ系等の塗料から適宜選んで使用する。As the filler, those capable of exhibiting the performance as a decorative board such as water resistance and adhesion in addition to the above-mentioned filler effect, for example, urethane, polyester, acrylic,
It is appropriately selected from epoxy-based paints and used.
【００１７】この目止め剤の塗布量は、インク吸収剤の
塗布ムラが生じない程度であればよく、吸込み具合に応
じて一般的に２〜２０ｇ／ｍ2の範囲で塗布する。The amount of the filling agent to be applied may be such that the application of the ink absorbent is not uneven, and the amount is generally in the range of 2 to 20 g / m 2 depending on the suction condition.
【００１８】尚、従来から行われているように、この目
止め処理の前に、予め化粧基板１表面の木地や導管をス
テイン等で着色しておいてもよい。Prior to the filling process, the wood or the conduit on the surface of the decorative substrate 1 may be colored with stains or the like, as has conventionally been done.
【００１９】（インク吸収層の形成）次に、印刷用イン
クの滲みを防ぎかつ所望どおりの色に発色させるため
に、上記目止め層５の上に透明ないし半透明のインク吸
収層７を設ける。(Formation of Ink Absorbing Layer) Next, a transparent or translucent ink absorbing layer 7 is provided on the filling layer 5 in order to prevent bleeding of the printing ink and to develop a desired color. .
【００２０】このインク吸収層７には、水溶性高分子と
水性樹脂とを重量比で１：９〜９：１の割合で混合した
インク吸収剤を用いる。その他、必要に応じて消泡剤、
成膜助剤等、塗料化に必要な薬剤を適宜加えてもよい。For the ink absorbing layer 7, an ink absorbing agent in which a water-soluble polymer and an aqueous resin are mixed at a weight ratio of 1: 9 to 9: 1 is used. In addition, if necessary, an antifoaming agent,
Chemicals required for coating, such as a film forming aid, may be added as appropriate.
【００２１】上記水溶性高分子としては、例えばポリビ
ニルアルコール、ポリビニルエーテル、ポリビニルピロ
リドン、ポリアクリル酸ナトリウム、ゼラチン、澱粉、
寒天、アラビアゴム等を用いることができる。Examples of the water-soluble polymer include polyvinyl alcohol, polyvinyl ether, polyvinyl pyrrolidone, sodium polyacrylate, gelatin, starch,
Agar, gum arabic and the like can be used.
【００２２】一方、水性樹脂としては、例えば水性ウレ
タン樹脂、水性アクリル樹脂、水性アルキド樹脂、水性
エポキシ樹脂、水性ポリブタジエン樹脂、酢酸ビニルエ
マルジョン、アクリルエマルジョン、スチレンブタジエ
ンエマルジョン等、乾燥後に透明ないし半透明になる親
水性樹脂を用いる。On the other hand, as the aqueous resin, for example, an aqueous urethane resin, an aqueous acrylic resin, an aqueous alkyd resin, an aqueous epoxy resin, an aqueous polybutadiene resin, a vinyl acetate emulsion, an acrylic emulsion, a styrene butadiene emulsion, etc. Is used.
【００２３】インク吸収層７は、化粧基板１の表面全面
に設けるか或いはインクにより印刷する箇所に部分的に
設けるかのどちらでもよい。The ink absorbing layer 7 may be provided on the entire surface of the decorative substrate 1 or may be provided partially on a portion to be printed with ink.
【００２４】インク吸収層７の形成のためのインク吸収
剤の塗布量は、乾燥時の厚さが２〜１００μｍとなるよ
うに、塗工適性及び印刷時のインク量に応じて決定す
る。また、塗装方法は、ロールコーター、フローコータ
ー、スプレー等の任意の方法でよい。そして、このよう
な塗装後に熱風や遠赤外線等のドライヤで乾燥させる。The coating amount of the ink absorbing agent for forming the ink absorbing layer 7 is determined according to the coating aptitude and the ink amount at the time of printing so that the thickness at the time of drying is 2 to 100 μm. The coating method may be any method such as a roll coater, a flow coater, and a spray. Then, after such coating, it is dried with a dryer such as hot air or far infrared rays.
【００２５】（印刷処理）この後、上記インク吸収層７
上に水性インクを用いてインクジェット方式で絵柄模様
をダイレクト印刷して印刷層９を形成する。上記水性イ
ンクとしては、耐光性の観点から、水性顔料インクを用
いるのがよい。(Printing process) After this, the ink absorbing layer 7
A print pattern 9 is formed by directly printing a picture pattern using an ink jet method using an aqueous ink. As the aqueous ink, an aqueous pigment ink is preferably used from the viewpoint of light resistance.
【００２６】上記印刷する画像データは、花や葉等の天
然物又は人工物から読み取った画像データ、及び／又は
人工的に作図したイラストやキャラクタ等の画像データ
をコンピュータ上で任意の大きさや形状に切り取ったも
の、又はそれらをさらに任意に繋ぎ合わせたものとすれ
ばよい。The image data to be printed may be image data read from natural or artificial objects such as flowers and leaves, and / or image data of artificially drawn illustrations and characters. To be cut out, or they can be further arbitrarily connected.
【００２７】尚、この印刷処理では、インクジェット方
式で印刷することに限らず、他の方式で絵柄模様を印刷
することもできる。The printing process is not limited to printing by the ink jet method, but may print a pattern by another method.
【００２８】（塗装処理）上記印刷後に印刷層９上（印
刷層９のない部分ではインク吸収層７上）に透明ウレタ
ン塗料を塗装してウレタン塗膜層１１を形成する。具体
的には、イソシアネート基ＮＣＯと水酸基ＯＨとの割合
がＮＣＯ／ＯＨ＝１．１〜２．５で、イソシアネート基
が過剰となるように配合されたウレタン塗料を塗布す
る。イソシアネート基の割合がＮＣＯ／ＯＨ＜１．１で
あると、化粧板としての性能（耐水性）が良好に得られ
ない一方、ＮＣＯ／ＯＨ＞２．５であると、コスト高と
なるとともに、粘度が高くなって作業性が悪化する。(Painting process) After the above printing, a transparent urethane paint is applied on the print layer 9 (or on the ink absorbing layer 7 in the portion without the print layer 9) to form the urethane coating layer 11. Specifically, a urethane paint is applied in which the ratio between the isocyanate group NCO and the hydroxyl group OH is NCO / OH = 1.1 to 2.5 and the isocyanate group is excessive. When the ratio of the isocyanate group is NCO / OH <1.1, the performance (water resistance) as a decorative board cannot be satisfactorily obtained. On the other hand, when the ratio of NCO / OH is 2.5, the cost increases, Viscosity increases and workability deteriorates.
【００２９】また、ウレタン塗料の塗布量は、上記と同
様の理由から２〜２０ｇ／ｍ2とする。また、仕上がり
の色調を調えるためにウレタン塗料を染料や顔料等で着
色してもよい。The application amount of the urethane paint is 2 to 20 g / m 2 for the same reason as described above. Further, the urethane paint may be colored with a dye, a pigment, or the like in order to adjust a finished color tone.
【００３０】そして、上記ウレタン塗膜層１１の上に、
耐摩耗性を付与する目的で、従来用いられているアルミ
ナやカーボン等の減摩剤を適宜添加した透明の塗料を塗
布して中塗り層１３を形成し、その上にさらに透明の塗
料で塗装して上塗り層１４を設ける。尚、これら中塗り
層１３及び上塗り層１４は必ずしも設ける必要はなく、
必要に応じて省略することもできる。Then, on the urethane coating layer 11,
For the purpose of imparting abrasion resistance, a conventionally used transparent paint appropriately added with a lubricating agent such as alumina or carbon is applied to form an intermediate coating layer 13, which is further coated with a transparent paint. Then, an overcoat layer 14 is provided. Incidentally, the intermediate coating layer 13 and the top coating layer 14 are not necessarily provided,
It can be omitted as necessary.
【００３１】以上により、木質化粧基板１の自然な木目
を活かしながら、好みの印刷柄がインクジェット方式で
ダイレクト印刷された木質化粧板Ａが得られる。そし
て、この木質化粧板Ａにおいては、インク吸収層７の下
側（化粧基板１側）に目止めシーラー剤による目止め層
５が形成されているので、均一なインク吸収層７が形成
されて印刷適性が向上したものとなる。As described above, it is possible to obtain a decorative wooden board A on which a desired printed pattern is directly printed by the ink jet method while utilizing the natural grain of the decorative wooden board 1. In the wooden decorative board A, since the sealing layer 5 is formed by the sealing sealant below the ink absorbing layer 7 (the decorative substrate 1 side), the uniform ink absorbing layer 7 is formed. The printability is improved.
【００３２】また、木質化粧板Ａにおいて化粧基板１側
（下側）から水分がインク吸収層７に移行するのが目止
めシーラー剤による目止め層５によって遮られるように
なり、木質化粧板Ａにおける印刷層９の耐水性が向上す
る。例えば化粧板Ａを床板として使用した場合には、床
下からの湿気の浸入（特にマンション等の直貼り床構造
では問題となる）や、こぼした水が床板の目地から基板
１にしみ込んでそれが床板表面側に移行する現象に対し
良好な耐水性が得られる。Further, in the wooden decorative board A, the transfer of moisture from the decorative substrate 1 side (the lower side) to the ink absorbing layer 7 is blocked by the sealing layer 5 made of the sealing sealant. , The water resistance of the printed layer 9 is improved. For example, when the decorative panel A is used as a floor panel, moisture enters from under the floor (particularly a problem in a direct-attached floor structure of an apartment or the like) or spilled water seeps into the substrate 1 from joints of the floor panel. Good water resistance to the phenomenon of shifting to the floorboard surface side is obtained.
【００３３】しかも、インク吸収層７上にイソシアネー
ト基過剰のウレタン塗料が塗布され、このウレタン塗料
の塗膜層１１における過剰のイソシアネート基が印刷層
９のインクないしインク吸収層７内の水酸基と反応する
ことで、印刷層９の密着性及び耐水性が向上する。以上
により、製造された木質化粧板Ａは、建材として十分な
性能が付与された化粧板となる。In addition, a urethane paint having an excess of isocyanate groups is applied on the ink absorbing layer 7, and the excess isocyanate groups in the coating layer 11 of the urethane paint react with the ink of the printing layer 9 or the hydroxyl groups in the ink absorbing layer 7. By doing so, the adhesion and the water resistance of the printing layer 9 are improved. Thus, the manufactured wooden decorative board A becomes a decorative board provided with sufficient performance as a building material.
【００３４】[0034]
【実施例】（実施例）具体的に実施した例について説明
すると、ＭＤＦにオークの突板を貼った化粧基板の表面
に２液硬化型のウレタンシーラーをロールコータにより
５ｇ／ｍ2塗布し、７０℃の熱風ドライヤ中で１分間加
熱することでウレタンシーラーを硬化させて目止め層を
形成した。次いで、この目止め層の上から化粧基板表面
の全面に亘り、ポリビニルアルコールと水性ウレタン樹
脂とを重量比で１：１の割合で混合したものを主成分と
するインク吸収剤（固形分は２０％）をロールコーター
により５０ｇ／ｍ2塗布した後、１０５℃の熱風ドライ
ヤにより１分間乾燥させてインク吸収層を形成した。次
に、インク吸収層の上からインクジェットプリンタを用
いて水性顔料インクにより部分的に花柄を印刷して乾燥
させた後、イソシアネート基と水酸基との割合がＮＣＯ
／ＯＨ＝１．５となるように調整した透明ウレタン塗料
をロールコーターにより１０ｇ／ｍ2塗布し、このウレ
タン塗料を熱風ドライヤにより７０℃で１分の条件で硬
化させてウレタン塗膜層を形成した。さらに、このウレ
タン塗膜層の上に、減摩剤としてアルミナ粒子を添加し
たアクリル系ＵＶ塗料を塗布して中塗り層を形成すると
ともに、この中塗り層上にアクリル系ＵＶ塗料を塗布し
て上塗り層を形成し、以上によって木質化粧板を得た。(Example) To explain a concrete example, a two-part curable urethane sealer is applied to a surface of a decorative substrate having an MDF with an oak veneer applied thereto at a rate of 5 g / m 2 by a roll coater. The urethane sealer was cured by heating for 1 minute in a hot-air dryer at ℃ to form a filling layer. Next, an ink absorbent containing a mixture of polyvinyl alcohol and an aqueous urethane resin at a ratio of 1: 1 by weight over the entire surface of the filling layer and the entire surface of the decorative substrate (solid content is 20%). %) Was applied with a roll coater at 50 g / m 2, and dried for 1 minute with a hot air dryer at 105 ° C. to form an ink absorbing layer. Next, after a floral pattern was partially printed with an aqueous pigment ink from above the ink absorbing layer using an inkjet printer and dried, the ratio of isocyanate groups to hydroxyl groups was reduced to NCO.
/OH=1.5 g / m 2 of a transparent urethane coating adjusted by a roll coater and cured with a hot air dryer at 70 ° C. for 1 minute to form a urethane coating layer. did. Further, on this urethane coating layer, an acrylic UV paint to which alumina particles were added as a lubricant was applied to form an intermediate coat layer, and an acrylic UV paint was applied on this intermediate coat layer. An overcoat layer was formed, and a wood decorative board was obtained as described above.
【００３５】（比較例１）目止め層の形成を省略した以
外は上記実施例と同様にして木質化粧板を製造した。こ
の比較例１の化粧板は、実施例のものと比べて色ムラが
多い印刷外観であった。Comparative Example 1 A decorative wooden board was manufactured in the same manner as in the above example except that the formation of the sealing layer was omitted. The decorative plate of Comparative Example 1 had a printed appearance with more color unevenness than that of the example.
【００３６】（比較例２）ＮＣＯ／ＯＨ＝１．０とし、
それ以外は実施例と同様にして木質化粧板を製造した。
この比較例２の化粧板は、実施例のものと同様の印刷外
観であった。(Comparative Example 2) NCO / OH = 1.0,
Other than that produced the wood decorative board like Example.
The decorative plate of Comparative Example 2 had the same printed appearance as that of the example.
【００３７】（評価試験）このようにして得られた実施
例及び比較例１，２の各化粧板についてＪＡＳのＦタイ
プの規格の各試験を行ったところ、実施例についてはそ
の規格に合格した。尚、ＪＡＳのＦタイプの主な試験
は、ＴｙｐｅＩ（煮沸湯中に４時間浸漬した後に６０℃
で２０時間乾燥し、再度煮沸湯中に４時間浸漬した後に
６０℃で３時間乾燥する）、ＴｙｐｅII（７０℃の温水
に２時間浸漬した後に６０℃で３時間乾燥する）、寒熱
繰返しＡ試験（８０℃で２時間乾燥した後に−２０℃で
２時間する保持する行程を１サイクルとして２サイクル
繰り返す）、耐水Ａ試験（８０℃の温水に１時間浸漬し
た後に６０℃で２時間乾燥する行程を１サイクルとして
２サイクル繰り返す）、湿熱試験、摩耗Ａ試験、汚染試
験、薬品試験がある。(Evaluation Test) Each of the decorative sheets obtained in Examples and Comparative Examples 1 and 2 thus obtained was subjected to each test of the JAS F type standard, and the Examples passed the standard. . In addition, the main test of the F type of JAS was conducted at 60 ° C. after immersion in Type I (boiled water for 4 hours).
For 20 hours, dipped again in boiling water for 4 hours and then dried at 60 ° C. for 3 hours), Type II (immersed in 70 ° C. hot water for 2 hours and then dried at 60 ° C. for 3 hours), repeated cold / hot A test (A cycle of holding at -20 ° C for 2 hours after drying at 80 ° C for 2 hours is repeated as one cycle, and 2 cycles are repeated.) Water resistance A test (Process of immersing in hot water of 80 ° C for 1 hour and drying at 60 ° C for 2 hours) Is repeated as one cycle for two cycles), a wet heat test, an abrasion A test, a contamination test, and a chemical test.
【００３８】これに対し、比較例１では、ＪＡＳのＦタ
イプの規格の試験のうち耐水Ａ試験において化粧基板の
突板とインク吸収層との間で剥離が生じた。On the other hand, in Comparative Example 1, peeling occurred between the veneer of the decorative substrate and the ink absorbing layer in the water resistance A test of the JAS F type standard test.
【００３９】また、比較例２については、同じ耐水Ａ試
験においてインク吸収層とウレタン塗膜層との間で剥離
が生じた。In Comparative Example 2, peeling occurred between the ink absorbing layer and the urethane coating layer in the same water resistance A test.
【００４０】したがって、本発明の方法によれば、例え
ば床材等として使用に十分耐え得る性能を持つ木質化粧
板を製造できることが裏付けられた。Therefore, it was proved that the method of the present invention can produce a wooden decorative board having a performance enough to withstand use as a floor material, for example.
【００４１】[0041]
【発明の効果】以上説明したように、請求項１の発明の
木質化粧板の製造方法によると、基材に天然木突板を貼
り合わせた化粧材又は天然木無垢材からなる化粧基板の
表面に目止めシーラー剤を塗布して目止め層を形成した
後、透明ないし半透明のインク吸収層を設け、このイン
ク吸収層上に水性インクにより絵柄模様を印刷した後、
イソシアネート基が過剰となるように配合された透明ウ
レタン塗料を塗布したことにより、均一なインク吸収層
を形成して印刷適性を向上させることができ、木質化粧
板の化粧基板側からの水分のインク吸収層への移行を目
止めシーラー剤による目止め層により抑えるとともに、
ウレタン塗料の塗装膜における過剰のイソシアネート基
を印刷層のインクないしインク吸収層内の水酸基と反応
させることができ、よって建材として使用するに耐え得
る耐水性や密着性等の性能が発揮できるとともに、特注
製品や小ロット製品等の顧客の多用なニーズへの対応を
行うことができる木質化粧板が得られる。また、透明な
いし半透明のインク吸収層及び透明ウレタン塗料によ
り、木質化粧基板の自然な木目を活かしながら、好みの
柄の印刷により木質化粧板の好ましい意匠が容易に得ら
れる。As described above, according to the method for manufacturing a wood decorative board of the first aspect of the present invention, the decorative board made of a natural wood veneer bonded to a base material or a natural board made of solid natural wood is used. After forming a sealing layer by applying a sealing sealant, a transparent or translucent ink absorbing layer is provided, and after printing a pattern with an aqueous ink on the ink absorbing layer,
By applying a transparent urethane coating compounded so that the isocyanate group becomes excessive, a uniform ink absorbing layer can be formed to improve printability, and water ink from the decorative substrate side of the wooden decorative board can be obtained. The transition to the absorption layer is suppressed by the sealing layer with the sealing sealant,
Excess isocyanate groups in the coating film of the urethane paint can be reacted with the hydroxyl groups in the ink or ink absorbing layer of the printing layer, thereby exhibiting performance such as water resistance and adhesion that can withstand use as a building material, A wood decorative board capable of responding to the diversified needs of customers, such as custom-made products and small lot products, is obtained. In addition, the transparent or translucent ink absorbing layer and the transparent urethane paint make it possible to easily obtain a favorable design of the decorative wooden board by printing a desired pattern while utilizing the natural grain of the decorative wooden board.
【００４２】請求項２の発明によると、上記インク吸収
層上にインクジェット方式で印刷したことにより、化粧
板の表面に精繊な画像を精細に直接形成して化粧板の様
々な絵柄を容易に表現でき、特注製品や小ロット製品等
の顧客の多用なニーズへの対応がより一層容易になる。According to the second aspect of the present invention, a fine image is directly formed on the surface of the decorative plate with precision by printing on the ink absorbing layer by the ink jet method, so that various patterns on the decorative plate can be easily formed. It can be expressed, and it becomes even easier to respond to the diversified needs of customers such as custom-made products and small lot products.
【図１】本発明の実施形態により製造された木質化粧板
の要部を拡大して示す断面図である。FIG. 1 is an enlarged sectional view showing a main part of a wooden decorative board manufactured according to an embodiment of the present invention.
Ａ 木質化粧板 １ 化粧基板 ５ 目止め層 ７ インク吸収層 ９ 印刷層 １１ 透明ウレタン塗膜層 A wood decorative board 1 decorative board 5 fill layer 7 ink absorbing layer 9 printing layer 11 transparent urethane coating layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井上 聡子 富山県東砺波郡井波町井波１番地の１ 大 建工業株式会社内 Ｆターム(参考） 2B002 AA05 AA10 BB12 4D075 AC41 AE03 BB62X CA13 CA38 CB06 DA06 DB11 DB22 DB24 DC02 DC31 EA06 EA07 EA25 EA33 EA43 EB07 EB12 EB14 EB19 EB20 EB22 EB33 EB35 EB36 EB38 4F100 AK21 AK25 AK51 AK51D AK51E AP01B AR00C AS00E AT00A BA05 BA07 BA10A BA10D CC00D EG002 EH462 EJ64E GB07 HB31C JB07 JD14C JL02 JL11 JN01D ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Satoko Inoue One of Inami-cho, Inami-cho, Higashi-Tonami-gun, Toyama Prefecture F-term (reference) 2B002 AA05 AA10 BB12 4D075 AC41 AE03 BB62X CA13 CA38 CB06 DA06 DB11 DB22 DB24 DC02 DC31 EA06 EA07 EA25 EA33 EA43 EB07 EB12 EB14 EB19 EB20 EB22 EB33 EB35 EB36 EB38 4F100 AK21 AK25 AK51 AK51D AK51E AP01B AR00C AS00E AT00A BA05 BA07B07 J10 EB01DCC00
Claims (2)
又は天然木無垢材からなる化粧基板の表面に目止めシー
ラー剤を塗布して目止め層を形成した後、 インクを吸収する透明ないし半透明のインク吸収層を設
け、 上記インク吸収層上に水性インクにより絵柄模様を印刷
して乾燥させた後、 イソシアネート基が過剰となるように配合された透明ウ
レタン塗料を塗布することを特徴とする木質化粧板の製
造方法。1. A transparent sealing material which is formed by applying a sealing sealant to the surface of a decorative material made of a natural material or a natural wood veneer bonded to a base material to form a sealing layer, and then absorbing the ink. Or providing a translucent ink absorbing layer, printing a pattern with an aqueous ink on the ink absorbing layer, drying the pattern, and then applying a transparent urethane coating compounded in an excess of isocyanate groups. Method for producing a wooden decorative board.
て、 インク吸収層上に水性インクによる印刷をインクジェッ
ト方式で行うことを特徴とする木質化粧板の製造方法。2. The method for manufacturing a decorative wooden board according to claim 1, wherein printing with an aqueous ink is performed on the ink absorbing layer by an ink jet method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000205455A JP2002019025A (en) | 2000-07-06 | 2000-07-06 | Method for producing woody decorative plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000205455A JP2002019025A (en) | 2000-07-06 | 2000-07-06 | Method for producing woody decorative plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002019025A true JP2002019025A (en) | 2002-01-22 |
Family
ID=18702537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000205455A Pending JP2002019025A (en) | 2000-07-06 | 2000-07-06 | Method for producing woody decorative plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002019025A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005000887A (en) * | 2003-06-16 | 2005-01-06 | Inoue Kinzoku Kogyo Co Ltd | Method and apparatus for coating |
| JP2007167826A (en) * | 2005-12-26 | 2007-07-05 | Kubota Matsushitadenko Exterior Works Ltd | Decorative construction plate |
| JP2007170014A (en) * | 2005-12-21 | 2007-07-05 | Kubota Matsushitadenko Exterior Works Ltd | Construction plate |
| JP2007176772A (en) * | 2005-12-28 | 2007-07-12 | Kubota Matsushitadenko Exterior Works Ltd | Method of producing building panel, and building panel |
| JP2008050896A (en) * | 2006-08-28 | 2008-03-06 | Matsushita Electric Works Ltd | Grooved flooring material and its processing method |
| CN102233600A (en) * | 2011-05-30 | 2011-11-09 | 深圳普兰太森新材料科技有限公司 | Wood shaped like inverted V or Z |
| JP2018052761A (en) * | 2016-09-27 | 2018-04-05 | 壽工業株式会社 | Natural wood-grain decorative fiber-reinforced cement plate and method for producing the same |
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| JPH10128231A (en) * | 1996-10-29 | 1998-05-19 | Dainippon Toryo Co Ltd | Coating method of substrate |
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| JPH11105229A (en) * | 1997-10-07 | 1999-04-20 | Toppan Printing Co Ltd | Decorative material |
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| JPS55116470A (en) * | 1979-02-28 | 1980-09-08 | Toppan Printing Co Ltd | Preparing decorative laminated sheet |
| JPS6044386A (en) * | 1983-08-23 | 1985-03-09 | Teijin Ltd | Recording sheet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005000887A (en) * | 2003-06-16 | 2005-01-06 | Inoue Kinzoku Kogyo Co Ltd | Method and apparatus for coating |
| JP2007170014A (en) * | 2005-12-21 | 2007-07-05 | Kubota Matsushitadenko Exterior Works Ltd | Construction plate |
| JP2007167826A (en) * | 2005-12-26 | 2007-07-05 | Kubota Matsushitadenko Exterior Works Ltd | Decorative construction plate |
| JP2007176772A (en) * | 2005-12-28 | 2007-07-12 | Kubota Matsushitadenko Exterior Works Ltd | Method of producing building panel, and building panel |
| JP2008050896A (en) * | 2006-08-28 | 2008-03-06 | Matsushita Electric Works Ltd | Grooved flooring material and its processing method |
| CN102233600A (en) * | 2011-05-30 | 2011-11-09 | 深圳普兰太森新材料科技有限公司 | Wood shaped like inverted V or Z |
| JP2018052761A (en) * | 2016-09-27 | 2018-04-05 | 壽工業株式会社 | Natural wood-grain decorative fiber-reinforced cement plate and method for producing the same |
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