JP2007031995A - Woody floor material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a woody floor material of printing various grain patterns on decorative plywood, particularly, a material having a little flaw and a recess on a surface via a hiding layer, and also printing the grain pattern on a backing such as a white ground and a black ground unexpressable by natural wood, by using a plate roller. <P>SOLUTION: This woody floor material is formed by performing finishing painting on a surface of the provided grain pattern by ultraviolet-curing transparent paint, by forming a transfer printing layer 5 by performing transfer printing of the grain pattern on this hiding layer 4 by the plate roller, by forming the hiding layer 4 by all-over painting, by performing backing processing on a surface of the decorative plywood. The decorative plywood formed by integrally laminating a projection plate 2 on plywood 1, is desirably used. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は木目柄で化粧された木質系床材に関する。さらに詳しくは、木目調の柄が表面に印刷された木質系床材に関する。   The present invention relates to a wood-based flooring material decorated with a wood grain pattern. More specifically, the present invention relates to a wooden floor material on which a woodgrain pattern is printed.

従来、木質系の床材としては、無垢の板材の表面をクリア塗装した天然木系床材、合板の表面に天然木をスライスして得られた突板を貼り合わせてなる合板系床材、あるいは合板の表面に木目を印刷した化粧紙を貼り合わせたプリント合板等が知られている。一方、上記以外にも、木目調の柄を下地塗装した木材に直接印刷する技術も知られており、例えば、下記特許文献１に記載の技術をあげることができる。   Conventionally, as a wood-based flooring material, a natural wood-based flooring material in which the surface of a solid board is clearly painted, a plywood-based flooring material in which a veneer obtained by slicing natural wood is bonded to the surface of the plywood, or There is known a printed plywood or the like in which decorative paper printed with wood grain is bonded to the surface of the plywood. On the other hand, in addition to the above, there is also known a technique for directly printing a woodgrain pattern on wood with a base coating applied. For example, the technique described in Patent Document 1 below can be given.

下記特許文献１には、下地塗装として透明着色塗料を使用して安価な木材表面に透明着色ベタ層を設け、その上に高級木材の木目柄を印刷して積層表面を形成させ、高級な木質感を付与する化粧木材の製造方法が開示されている。その際、下記特許文献１の図３に記載のように、透明着色ベタ層がグラビアオフセット法によりダイレクトに印刷されている。
特開平６−７２０１１号公報（第１〜３頁、第１図、第３図） In Patent Document 1 below, a transparent colored solid layer is provided on an inexpensive wood surface using a transparent colored paint as a base coating, and a high-quality wood grain pattern is printed thereon to form a laminated surface. A method for producing decorative wood that imparts a texture is disclosed. At that time, as shown in FIG. 3 of Patent Document 1 below, the transparent colored solid layer is directly printed by the gravure offset method.
JP-A-6-72011 (pages 1 to 3, FIG. 1 and FIG. 3)

しかしながら、上記特許文献１に記載の化粧木材の製造方法は、直ちに、上記木質系床材の製造に適用できるものとはいえない。本発明はこのような状況のもとで考え出されたものであって、表面に種々の木目柄が印刷され、また、天然木では表現しにくい白地、黒地等の下地に木目柄が印刷される木質系床材を提供することを、その課題とする。   However, the method for producing decorative wood described in Patent Document 1 cannot be immediately applied to the production of the wood-based flooring. The present invention has been conceived under such circumstances, in which various wood grain patterns are printed on the surface, and wood grain patterns are printed on a background such as a white background or a black background that is difficult to express with natural wood. The problem is to provide a wooden flooring that can be used.

上記課題を解決するために、本発明においては、つぎのような技術的手段を講じている。すなわち、請求項１に記載の発明によれば、化粧合板の表面を下地処理し、さらにベタ塗りにより隠蔽層を形成し、この隠蔽層の上に木目柄を版ロールにより転写印刷して転写印刷層を形成し、得られた木目柄の表面を紫外線硬化型透明塗料により仕上げ塗装をしてなる木質系床材が提供される。ここで、化粧合板とは、合板の表面が木目等の柄で化粧されたものをいう。   In order to solve the above problems, the present invention takes the following technical means. That is, according to the first aspect of the present invention, the surface of the decorative plywood is ground-treated, and further, a concealing layer is formed by solid coating, and a wood grain pattern is transferred and printed on the concealing layer by a plate roll. A wood-based flooring is provided in which a layer is formed and the surface of the obtained wood grain pattern is finish-coated with an ultraviolet curable transparent paint. Here, the decorative plywood means that the surface of the plywood is made up with a pattern such as wood grain.

上記下地処理は、目止め、塗料の吸い込みムラ防止、塗料の付着性の向上等のためになされるものであり、通常、砥の粉等の目止め材を用いて化粧合板表面の傷や凹みを埋め、平滑な下地処理層が形成される。また、隠蔽層の形成は、通常、着色塗料を用いて行われ、下地を隠蔽するとともに、得られた隠蔽層は印刷柄の柄下地として機能する。また、印刷は各種の木目柄を有する版ロールを用いて行われ、版ロールを替えることにより上記隠蔽層の上に所望の色、柄で木目柄を印刷することができる。このようにして得られた上記木質系床材の表面は、紫外線硬化型透明塗料により仕上げ塗装を行い、木目柄がクリアに表れた完成品とされる。   The above surface treatment is performed for sealing, preventing uneven suction of the paint, improving the adhesion of the paint, etc., and is usually filled with scratches or dents on the surface of the decorative plywood using a sealing material such as abrasive powder. A smooth base treatment layer is formed. Further, the formation of the concealing layer is usually performed using a colored paint to conceal the base, and the obtained concealing layer functions as a pattern base of the printed pattern. Printing is performed using plate rolls having various wood grain patterns. By changing the plate rolls, wood grain patterns can be printed with a desired color and pattern on the concealing layer. The surface of the wood-based flooring obtained in this way is finished with an ultraviolet curable transparent paint to give a finished product with a clear grain pattern.

請求項２に記載の木質系床材は、請求項１に記載の発明に加えて、上記化粧合板として合板上に突板を積層し一体化されてなるものが用いられる。突板としては、とくに限定されず種々の木目柄を有するものが使用可能である。とくに、上記化粧合板の製造工程において、突板の表面に傷が付いたり、凹みが生じたために、商品として販売することができない、いわゆるＢ級品を用いることができる。また、売れ残ったため、在庫品としてストックされている流行遅れの柄を持つ化粧合板等も、本発明の木質系床材の製造に用いることができる。   In addition to the invention described in claim 1, the wood floor material according to claim 2 is a laminate in which a veneer is laminated and integrated on the plywood as the decorative plywood. The projecting plate is not particularly limited, and those having various grain patterns can be used. In particular, in the manufacturing process of the decorative plywood, a so-called class B product that cannot be sold as a product because the surface of the veneer is scratched or dents can be used. Moreover, since it was unsold, a decorative plywood or the like having an out-of-fashion pattern stocked as a stock can be used for producing the woody flooring of the present invention.

請求項１に記載の発明にかかる木質系床材は上記のとおりであり、下地処理した化粧合板の表面をベタ塗りして隠蔽層を形成し、この隠蔽層の上に版ロールを用いて木目柄を転写印刷するため、上記化粧合板の表面に、種々の天然木の木目柄を所望の色、柄で印刷することができる。また、白色、または黒色の塗料で隠蔽層を形成し、この上に木目柄を印刷することにより、天然木では表現しにくい木目柄を表面に印刷することができる。   The wood-based flooring according to the first aspect of the present invention is as described above, and the surface of the decorative plywood subjected to the ground treatment is solidly coated to form a concealing layer, and the grain is formed on the concealing layer using a plate roll. Since the pattern is transferred and printed, various natural wood grain patterns can be printed with desired colors and patterns on the surface of the decorative plywood. Further, by forming a concealing layer with a white or black paint and printing a wood grain pattern thereon, a wood grain pattern that is difficult to express with natural wood can be printed on the surface.

また、版ロールを取り替えるだけで、異なった木目柄が印刷可能であり、種々の天然木の木目柄を有する木質系床材を作業性よく製造することができる。さらに、版ロールを用いることにより、幅広の化粧合板に対応できるため、木目柄が印刷された幅広の木質系床材を提供することができる。   Further, by simply replacing the plate roll, different wood grain patterns can be printed, and wood-based floor materials having various natural wood grain patterns can be manufactured with good workability. Furthermore, since a plate roll can be used for a wide decorative plywood, a wide wooden floor material on which a wood grain pattern is printed can be provided.

請求項２に記載の木質系床材は上記のとおりであり、請求項１の木質系床材の有する効果に加え、合板上に突板を積層一体化してなる化粧合板を用いるため、在庫品としてストックされている、例えば、流行遅れの柄を持つ化粧合板の表面を塗り替えることにより、新商品として再生することができる。また、化粧合板の製造工程において発生する、いわゆるＢ級品と呼ばれる不良品を廃棄することなく、傷や凹みを下地処理し、リサイクルして再び製品化できる。そのため、焼却処分等により環境に負荷をかけることなく、資源を有効に利用することができる。   Since the wooden flooring of Claim 2 is as above-mentioned, in addition to the effect which the wooden flooring of Claim 1 has, in order to use the decorative plywood which laminates and integrates a veneer on a plywood, For example, by repainting the surface of a decorative plywood that has been stocked, for example, with a pattern that is out of fashion, it can be regenerated as a new product. Further, it is possible to treat the scratches and dents and recycle them again without discarding defective products called so-called Class B products, which are generated in the manufacturing process of the decorative plywood. Therefore, resources can be used effectively without incurring environmental impact due to incineration.

以下、本発明の実施形態について図面を参照して、詳細に説明する。図１は本発明にかかる木質系床材の実施例を示すものである。図１（ａ）は上記木質系床材の製造工程の概略を示すフロー図であり、図１（ｂ）は図１（ａ）に示す製造工程で得られた木質系床材Ａの構成を示す断面図である。本実施例においては、化粧合板として合板と突板とが積層一体化されたものが用いられる。上記化粧合板は製造工程で発生したいわゆるＢ級品であり、表面に僅かな傷凹みや汚れを持っている。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of a wooden flooring according to the present invention. Fig.1 (a) is a flowchart which shows the outline of the manufacturing process of the said wooden type flooring, FIG.1 (b) shows the structure of the wooden type flooring A obtained by the manufacturing process shown to Fig.1 (a). It is sectional drawing shown. In this embodiment, a laminated plywood and a veneer are used as a decorative plywood. The decorative plywood is a so-called class B product generated in the manufacturing process and has slight scratches and dirt on the surface.

図１（ａ）において、上記化粧合板は、突板の上を砥の粉等の目止め材で目止めして凹み等を埋めるとともに、表面が平滑となるように下地処理をされる。下地処理後、下地処理層の上を公知の塗装方法、例えば、ロールコート法により着色塗料を塗布し、隠蔽するとともに、所望の色で柄下地を形成する。ついで、版ロールを用いて柄下地の上に所望の色、柄で木目柄を印刷し、その表面を紫外線硬化型透明塗料（ＵＶ塗装）により仕上げ塗装を行い本発明の木質系床材が得られる。   In FIG. 1 (a), the decorative plywood is subjected to a ground treatment so that the surface of the veneer is filled with a sealing material such as abrasive powder to fill the recesses and the surface is smooth. After the base treatment, a colored paint is applied and concealed on the base treatment layer by a known coating method, for example, a roll coating method, and a pattern base is formed in a desired color. Next, a wood grain pattern is printed with a desired color and pattern on the pattern base using a plate roll, and the surface is finished with an ultraviolet curable transparent paint (UV coating) to obtain the woody floor material of the present invention. It is done.

図１（ｂ）は上記の工程により得られた木質系床材Ａの構成を示す断面図である。図１（ｂ）に示すように、合板１の上に積層され、一部に凹みのある突板２の表面は上記したように下地処理されて下地処理層３が形成されている。さらに隠蔽層４が上塗りされ、この隠蔽層４を柄下地として、所望の木目柄が印刷され、転写印刷層５が形成される。最後に公知のＵＶ塗装による透明仕上げ塗装を行い、硬化した表面塗装層６が転写印刷層５を保護する。   FIG.1 (b) is sectional drawing which shows the structure of the wood type flooring A obtained by said process. As shown in FIG. 1B, the surface of the protruding plate 2 laminated on the plywood 1 and partially recessed is subjected to the ground treatment as described above to form the ground treatment layer 3. Further, the concealing layer 4 is overcoated, and a desired grain pattern is printed using the concealing layer 4 as a pattern base to form a transfer printing layer 5. Finally, a transparent finish coating by a known UV coating is performed, and the hardened surface coating layer 6 protects the transfer printing layer 5.

上記隠蔽層４の色は自由に選択できるため、天然木の地肌に近い色で隠蔽層４を形成し、その上を、例えば、杉の木目を浮き上がらせた版ロールで転写印刷すれば、製造工程で発生したＢ級品の化粧合板の表面に杉の木目が再現され、商品として市場に出すことができる。このように、いわゆるＢ級品と呼ばれる不良品を、焼却等の手段により処分することなく、傷や凹みを下地処理し、リサイクルして再び製品化できるため、資源を有効に利用し、環境の保護に寄与することができる。   Since the color of the masking layer 4 can be freely selected, the masking layer 4 is formed in a color close to the background of natural wood, and if it is transferred and printed on, for example, a plate roll with the cedar grain raised, it is manufactured. The grain of cedar is reproduced on the surface of the class B decorative plywood generated in the process, and can be put on the market as a product. In this way, so-called defective products called Class B products can be grounded and recycled again without disposal by means such as incineration, so that resources can be used effectively, It can contribute to protection.

（ａ）は本発明にかかる木質系床材の製造工程の概略を示すフロー図、（ｂ）は（ａ）に示す製造工程で得られた木質系床材の構成を示す断面図である。(A) is a flowchart which shows the outline of the manufacturing process of the wooden flooring concerning this invention, (b) is sectional drawing which shows the structure of the wooden flooring obtained by the manufacturing process shown to (a).

符号の説明Explanation of symbols

Ａ 本発明にかかる木質系床材
１ 合板
２ 突板
３ 下地処理層
４ 隠蔽層
５ 転写印刷層
６ 表面塗装層 A Wood-based flooring according to the present invention 1 Plywood 2 Veneer 3 Ground treatment layer 4 Hiding layer 5 Transfer printing layer 6 Surface coating layer

Claims (2)

化粧合板の表面を下地処理し、さらにベタ塗りにより隠蔽層を形成し、この隠蔽層の上に木目柄を版ロールにより転写印刷して転写印刷層を形成し、得られた木目柄の表面を紫外線硬化型透明塗料により仕上げ塗装をしてなる木質系床材。   The surface of the decorative plywood is ground-treated, and a concealment layer is formed by solid coating. A transfer pattern is formed on the concealment layer by transferring and printing a wood grain pattern with a plate roll. A wooden flooring that is finished with a UV-curable transparent paint. 上記化粧合板が合板上に突板を積層し一体化されたものである請求項１に記載の木質系床材。   The wood-based flooring according to claim 1, wherein the decorative plywood is formed by laminating a veneer on a plywood.

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