JPH11291203A - Production of woody decorative board - Google Patents
Production of woody decorative boardInfo
- Publication number
- JPH11291203A JPH11291203A JP10116156A JP11615698A JPH11291203A JP H11291203 A JPH11291203 A JP H11291203A JP 10116156 A JP10116156 A JP 10116156A JP 11615698 A JP11615698 A JP 11615698A JP H11291203 A JPH11291203 A JP H11291203A
- Authority
- JP
- Japan
- Prior art keywords
- decorative
- density
- embossing
- board
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は建築用材、特に、床
材として使用するのに好適な木質化粧板であって天然木
に近い外観を呈し、且つ耐水性に優れた木質化粧板の製
造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a decorative wooden board suitable for use as a building material, in particular, a flooring material, which has an appearance close to that of natural wood and has excellent water resistance. It is about.
【０００２】[0002]
【従来の技術】従来から、表面に木目柄を設けた木質化
粧板を得るには、合板などの木質材からなる基板の表面
に木目柄を印刷した化粧フィルムを貼着し、この化粧フ
ィルムの木目柄が一層天然木の外観を呈するようにする
ために、その表面に発泡剤を添加したインク、或いは塗
膜の硬化を抑制する薬剤を添加した硬化抑制インクによ
って導管柄を作製する化学的な方法や、上記木目柄を印
刷したフィルム表面にエンボスプレート、エンボスロー
ル或いはエンボスフィルムを用いてエンボス加工を行う
ことにより導管柄を作製する物理的な方法が知られてい
る。2. Description of the Related Art Conventionally, in order to obtain a wood decorative board having a wood grain pattern on the surface, a decorative film having a wood grain pattern printed thereon is attached to the surface of a substrate made of a wood material such as plywood. In order to make the woodgrain pattern more natural wood appearance, a chemical agent is used to make a conduit handle with an ink to which a foaming agent is added on its surface or a curing-suppressing ink to which a chemical that suppresses the curing of the coating film is added. A method and a physical method of producing a pipe pattern by performing embossing on the surface of a film on which the wood grain pattern is printed using an emboss plate, an emboss roll, or an emboss film are known.
【０００３】一方、合板などの木質材の表面に直接化粧
フィルムを貼着してなる上記化粧板の場合には、湿気の
吸収、放散に伴う合板の膨張、収縮によって表面に細か
い亀裂（干割れ）が生じて化粧性を損なうと共に、床材
として使用した場合、表面に重量の大きい家具の脚や落
下物などによる局部的な荷重が加わると凹みが生じたり
キャスター付きワゴンによる摺動的な負荷によって化粧
板の表面が傷を受ける等の問題点が生じるために、木質
材表面に中比重繊維板を貼着し、この中比重繊維板の表
面に化粧フィルムを貼着することが行われている。[0003] On the other hand, in the case of the decorative board described above in which a decorative film is directly adhered to the surface of a wooden material such as plywood, fine cracks (dry cracks) are formed on the surface due to expansion and contraction of the plywood due to absorption and diffusion of moisture. ) Is caused to impair the cosmetic properties and when used as flooring, when a local load is applied to the surface due to heavy furniture legs or falling objects, dents are formed or sliding load is caused by a wagon with casters. Due to problems such as damage to the surface of the decorative board due to scratches, a medium specific gravity fiber board is attached to the surface of the wooden material, and a decorative film is attached to the surface of the medium specific gravity fiber board. I have.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記化
学的なエンボス加工によって導管柄を作製する方法によ
れば、化粧フィルムに印刷している木目柄にエンボスに
よる導管柄を同調させることができるが、エンボスに木
目のもつシャープさを現出させることができず、その
上、塗膜の厚みが薄くて化粧性に劣るという問題点があ
る。However, according to the above-mentioned method of producing a conduit pattern by chemical embossing, the embossed conduit pattern can be synchronized with the grain pattern printed on the decorative film. There is a problem in that the emboss cannot exhibit the sharpness of wood grain, and further, the thickness of the coating film is thin and the cosmetic quality is poor.
【０００５】一方、エンボスプレート等による物理的な
加工によれば、シャープで深いエンボスを設けることが
できるが、上記のように木質材と中比重繊維板との複合
材からなる基板表面に貼着している化粧フィルムにエン
ボスを施すと、通常、中比重繊維板は製造時においてそ
の表裏が高密度（比重1.0 〜1.1 程度) の硬質層に形成
されているので、亀裂等の発生をなくするには高い押圧
力で徐々に押圧しなければならず、生産性が悪くなる。
その上、エッジがよりシャープとなるようにエンボス加
工を施すと、そのエッジ部分の化粧フィルムが破損して
化粧性ばかりでなく耐水性が損なわれるという問題点が
ある。On the other hand, according to physical processing using an emboss plate or the like, a sharp and deep emboss can be provided. However, as described above, the emboss plate is attached to the surface of a substrate made of a composite material of a woody material and a medium density fiberboard. When embossing is applied to the decorative film, the medium specific gravity fiber board is usually formed with a hard layer of high density (specific gravity of about 1.0 to 1.1) on the front and back during manufacture, so that cracks and the like are eliminated. Must be gradually pressed with a high pressing force, and the productivity deteriorates.
In addition, when embossing is performed so that the edge becomes sharper, there is a problem that the decorative film at the edge portion is damaged and not only the cosmetic property but also the water resistance is impaired.
【０００６】本発明はこのような問題点に鑑みてなされ
たもので、その目的とするところは天然木に酷似した外
観を呈して良好な化粧性を有しかつ防水性及び寸法安定
性や強度的にも優れた木質化粧板を得ることのできる製
造方法を提供するにある。The present invention has been made in view of the above-mentioned problems, and has as its object the purpose of the present invention is to provide an appearance very similar to natural wood, have good cosmetic properties, and provide waterproofness, dimensional stability and strength. Another object of the present invention is to provide a production method capable of obtaining an excellent wooden decorative board.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明の木質化粧板の製造方法は、木質基板の表面
に、表層側が低密度で裏層側が高密度に形成された厚さ
が３mm以下の中比重繊維板を、その高密度側の裏面を木
質基板の表面に向けて積層接着することにより化粧台板
を形成し、この化粧台板の表面に木目柄の印刷を設けて
なる化粧紙を貼着したのちエンボス加工を施し、しかる
のち、エンボス部にステイン着色を施すことを特徴とし
ている。In order to achieve the above object, the present invention provides a method for manufacturing a wooden decorative board, which comprises the steps of: providing, on a surface of a wooden substrate, a low-density surface layer and a high-density rear layer side; A medium-density fiberboard of 3 mm or less is laminated and bonded with the back surface on the high-density side facing the surface of the wooden substrate to form a decorative base plate, and a woodgrain pattern is printed on the surface of the decorative base plate. It is characterized in that embossing is applied after the decorative paper is attached, and then the embossed portion is stained.
【０００８】このような木質化粧板の製造方法におい
て、請求項２に係る発明は、上記エンボス加工とステイ
ン着色とによって化粧紙の木目柄に沿った導管柄を形成
することを特徴とするものであり、請求項３に係る発明
は、木質基板の表面に貼着している中比重繊維板の表層
側における略0.5mm 厚の繊維層部分の平均密度を0.5 〜
0.75に形成していることを特徴としている。[0008] In the method for manufacturing a wood decorative board, the invention according to claim 2 is characterized in that the embossing and stain coloring form a conduit pattern along the wood pattern of the decorative paper. According to a third aspect of the present invention, the average density of the fiber layer portion having a thickness of approximately 0.5 mm on the surface layer side of the medium-density fiberboard adhered to the surface of the wooden substrate is 0.5 to 0.5.
It is characterized by being formed at 0.75.
【０００９】[0009]
【発明の実施の形態】本発明の実施の形態を図面につい
て説明すると、まず、木質基板１の表面に厚さが１mm以
上、３mm以下の薄い中比重繊維板２を積層、接着して化
粧台板Ａを作製する。木質基板１としては、合板、木削
辺板、木質繊維板（中比重繊維板を含む）、集成材等の
木質板が使用され、床材を形成する場合にはこの木質基
板１の厚みは通常2.3 〜25mmのものが用いられる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. First, a thin medium-density fiberboard 2 having a thickness of 1 mm or more and 3 mm or less is laminated and adhered to the surface of a wooden substrate 1. A plate A is prepared. As the wood substrate 1, a wood board such as a plywood, a wood cutting board, a wood fiber board (including a medium-density fiber board), a laminated wood, and the like is used. Usually, a member having a size of 2.3 to 25 mm is used.
【００１０】一方、この木質基板１の表面に貼着する中
比重繊維板２としては、表裏層が高密度層に形成されて
いる通常の中比重繊維板ではなく、表層側が低密度で裏
層側が高密度に形成された中比重繊維板２を用いる。こ
のような中比重繊維板２を得るには、表裏層が高密度で
内層が低密度に形成されている通常の中比重繊維板の片
面を削成することによって得ることができるが、表裏層
が高密度の該中比重繊維板を、その厚さ方向の中央部か
らカッタ等によって表裏側に２分割することによって高
密度層の一面側から低密度層の他面側に密度傾斜を有す
る２枚の薄い中比重繊維板２を効率的に得ることができ
る。On the other hand, the medium-density fiberboard 2 to be adhered to the surface of the wood substrate 1 is not a normal medium-density fiberboard in which the front and back layers are formed in a high-density layer. A medium-density fiberboard 2 whose side is formed with high density is used. Such a medium specific gravity fiber board 2 can be obtained by cutting one surface of a normal medium specific gravity fiber board in which the front and back layers are formed at a high density and the inner layer is formed at a low density. Is divided into two parts from the center in the thickness direction of the medium specific gravity fiber board to the front and back sides by a cutter or the like so that a density gradient is formed from one side of the high density layer to the other side of the low density layer. The thin medium specific gravity fiberboards 2 can be efficiently obtained.
【００１１】このように、表層側が低密度層2aで裏層側
が高密度層2bに形成されている薄い中比重繊維板２を、
その高密度側である裏面を木質基板１の表面に向けて積
層接着することにより化粧台板Ａを作製するものであ
る。低密度層2aを表層側に向けて中比重繊維板２を木質
基板１表面に貼着する理由は、該低密度層2a上に後述す
る化粧紙３を貼着後、エンボス加工を行った際に、エッ
ジがシャープで深いエンボス加工であっても化粧紙３に
破れが生じないようにするためである。そのため、中比
重繊維板２をその高密度を裏面側に向けて木質基板１の
表面に積層接着し、低密度層2aにエンボス加工を施すよ
うにしているが、この低密度層2aにおいてもその表層側
における略0.5mm 厚の繊維層部分の平均比重が0.75を越
えると、表面に貼着した化粧後３にエンボス加工による
破れが生じて性能、意匠面等で支障が出る虞れがあるの
で、その厚さ部分の平均比重を0.50〜0.75に形成してい
る。なお、平均比重が0.50以下になると表面硬度が足り
ず、化粧紙３にエンボス加工を施しても所定の性能が得
られない。As described above, the thin medium-density fiberboard 2 in which the surface layer is formed as the low-density layer 2a and the back layer is formed as the high-density layer 2b,
The decorative base plate A is manufactured by laminating and bonding the back surface, which is the high-density side, to the surface of the wooden substrate 1. The reason why the medium-density fiberboard 2 is adhered to the surface of the wooden substrate 1 with the low-density layer 2a facing the surface side is that embossing is performed after attaching a decorative paper 3 described later on the low-density layer 2a. In addition, even if the edge is sharp and deep embossing is performed, the decorative paper 3 is not torn. Therefore, the medium density fiberboard 2 is laminated and bonded to the surface of the wooden substrate 1 with its high density facing the back side, and the low density layer 2a is embossed. If the average specific gravity of the fiber layer portion having a thickness of about 0.5 mm on the surface layer exceeds 0.75, it may be broken by embossing after the makeup 3 attached to the surface, which may hinder performance, design, etc. The average specific gravity of the thickness portion is formed to be 0.50 to 0.75. When the average specific gravity is 0.50 or less, the surface hardness is insufficient, and even if the decorative paper 3 is embossed, the predetermined performance cannot be obtained.
【００１２】上記のように化粧台板Ａを作製したのち、
この化粧台板Ａの中比重繊維板２における低密度層2aの
表面に木目柄を印刷した合成樹脂シート又はフィルムよ
りなる防水性能を有する化粧紙３を貼着し、次いで、こ
の化粧紙３の表面から該化粧紙３と共に中比重繊維板２
の表層部内に達するエンボス加工を化粧紙３の木目柄に
沿って施したのち、図２に示すようにこのエンボス部４
に、油性染料や顔料を溶剤で希釈してなるステイン（木
材着色剤）を塗布することによってエンボス部４にステ
イン着色を施し、このステイン着色層５を設けたエンボ
ス部４により導管を現出しているものである。After preparing the dressing table A as described above,
On the surface of the low-density layer 2a in the medium-density fiberboard 2 of the decorative base plate A, a decorative paper 3 having a waterproof property made of a synthetic resin sheet or film having a wood grain pattern printed thereon is attached. Medium specific gravity fiberboard 2 with the decorative paper 3 from the surface
After embossing is performed along the grain pattern of the decorative paper 3 to reach the surface layer portion of the embossed portion 4 as shown in FIG.
The embossed portion 4 is stained by applying a stain (wood colorant) obtained by diluting an oily dye or pigment with a solvent, and a conduit is exposed by the embossed portion 4 provided with the stain-colored layer 5. Is what it is.
【００１３】エンボス加工は、化粧紙３に印刷している
木目柄に沿って導管柄を形成するための多数の突部を成
形してなるエンボスプレート又はエンボスロールを用い
て化粧台板Ａの化粧紙表面を押圧することにより行わ
れ、ステイン着色は、リバースコータ又はドクターブレ
ード、或いはワイピングマシン等を用いてエンボス部４
を濃色のステインで着色するものであって、この着色に
より天然木に近い木質感のある化粧板を得るものであ
る。The embossing is performed by embossing a decorative base plate A using an embossing plate or an embossing roll formed by forming a number of projections for forming a conduit pattern along a grain pattern printed on the decorative paper 3. The stain coloring is performed by pressing the paper surface, and the stain is colored by using a reverse coater or a doctor blade, a wiping machine, or the like.
Is colored with a dark stain to obtain a decorative board having a woody feeling close to that of natural wood.
【００１４】化粧台板Ａの化粧紙３に設けたエンボス部
４にステイン着色を行う方法としては、次に挙げる〜
のうち、いずれかの方法を用いて行われる。 ．化粧台板Ａの表面に上記木目柄を印刷してなる化粧
紙３を貼着後、この化粧紙３にエンボス加工を施し、し
かるのち、ステイン着色する。 ．化粧台板Ａの表面に上記木目柄を印刷してなる化粧
紙３を貼着後、その表面にシーラを塗布し、該塗布層を
乾燥させたのち、エンボス加工とステイン着色とを順次
行う。 ．木目柄を印刷してなる化粧紙３の表面に予め、シー
ラ塗布層を設けておき、この化粧紙３を化粧台板Ａの表
面に貼着後、エンボス加工とステイン着色とを順次行
う。 ．化粧台板Ａの表面に上記木目柄を印刷してなる化粧
紙３を貼着後、エンボス加工を施し、しかるのち、表面
にシーラ塗装を行ってこの塗布層を硬化させたのち、ス
テイン着色を行う。The method for stain-coloring the embossed portion 4 provided on the decorative paper 3 of the decorative base plate A is as follows.
It is performed using any one of the methods. . After the decorative paper 3 having the wood grain pattern printed thereon is attached to the surface of the decorative base plate A, the decorative paper 3 is embossed and then stained. . After the decorative paper 3 having the grain pattern printed thereon is attached to the surface of the decorative base plate A, a sealer is applied to the surface, the applied layer is dried, and then embossing and stain coloring are sequentially performed. . A sealer coating layer is provided in advance on the surface of the decorative paper 3 on which the wood pattern is printed, and after the decorative paper 3 is attached to the surface of the decorative base plate A, embossing and stain coloring are sequentially performed. . After attaching the decorative paper 3 formed by printing the wood grain pattern on the surface of the decorative base plate A, embossing is performed, and thereafter, the surface is coated with a sealer to cure the applied layer, and then stain-colored. Do.
【００１５】なお、化粧板の表面性能をさらに向上させ
るために、上記方法によって得られた化粧板の表面にク
リア塗装を施してもよく、この際、その塗料に減摩材を
添加しておいてもよい。又、木質基板１の表裏面に上記
中比重繊維板２を積層、接着し、その低比重層2aに化粧
紙３を貼着したのち、表裏の化粧紙３に上記エンボス加
工とステイン着色を施してもよい。次に本発明の具体的
な実施例と比較例を示す。In order to further improve the surface performance of the decorative board, a clear coating may be applied to the surface of the decorative board obtained by the above method. At this time, a lubricant is added to the paint. May be. Further, the medium specific gravity fiber board 2 is laminated and adhered to the front and back surfaces of the wooden substrate 1, and the decorative paper 3 is adhered to the low specific gravity layer 2a, and the embossing and stain coloring are performed on the front and back decorative papers 3. You may. Next, specific examples and comparative examples of the present invention will be described.
【００１６】[0016]
【実施例】〔実施例１〕厚さが３mmの中比重繊維板を、
厚さ方向の略中央をナイフにて表面側と裏面側とに割裂
することにより、一面側の比重が0.6 の低密度層で他面
側の比重が0.9の高密度層となっている厚さが1.5mm の
極薄の中比重繊維板を２枚得た。この中比重繊維板を一
枚、その低密度層側を表面に向けて裏面を厚さが９mmの
合板表面に接着剤で貼着して化粧台板を作製した。次い
で、この化粧台板の表面にエチレン酢酸ビニル接着剤を
約65g/m2塗布し、105 ℃の乾燥機で20秒間風乾したの
ち、表面にナラ材の木目柄を印刷してなる23g/m2の化粧
紙をラミネータによって貼着した。しかるのち、ナラ材
から木目模様を凹凸に型取りしてなるエンボスプレート
の型面を化粧紙の表面に載置し、120 ℃で20分間押圧し
て化粧板の上記ナラ柄印刷に沿ったエンボス部を加工し
た。[Example 1] A medium-density fiberboard having a thickness of 3 mm
By splitting the approximate center in the thickness direction with a knife into the front side and the back side, a low density layer with a specific gravity of 0.6 on one side and a high density layer with a specific gravity of 0.9 on the other side Were obtained, two ultra-thin medium-density fiberboards having a thickness of 1.5 mm were obtained. One sheet of this medium specific gravity fiber board was bonded with an adhesive to the surface of a plywood having a thickness of 9 mm with the low-density layer side facing the front surface to prepare a decorative base plate. Next, about 65 g / m 2 of ethylene vinyl acetate adhesive is applied to the surface of the decorative base plate, air-dried with a dryer at 105 ° C. for 20 seconds, and a wood grain pattern of oak is printed on the surface at 23 g / m 2. The decorative paper of No. 2 was stuck by the laminator. After that, place the embossed plate formed by embossing the wood grain pattern from the oak wood on the surface of the decorative paper and press it at 120 ° C for 20 minutes to emboss the embossed plate along the above oak pattern printing on the decorative board. The part was processed.
【００１７】冷却後、ワイピングマシーンを使用してエ
ンボス凹部のみを濃褐色ステインで着色し、乾燥後、減
摩材としてホワイトアルミナを10重量％添加したウレタ
ンクリア塗料を化粧紙の表面全面に塗布した。こうして
得られた木目模様を有する木質化粧板は、エンボス部と
ステイン着色とによる導管孔を模した深くてシャープな
凹部を有していて天然ナラ材にワイピング塗装を施した
外観に酷似しており、床材としての性能もＪＡＳフロー
リング材規格のＦタイプに合格するものであった。After cooling, only the embossed recesses were colored with dark brown stain using a wiping machine, and after drying, a urethane clear paint containing 10% by weight of white alumina as an antifriction material was applied to the entire surface of the decorative paper. . The wood veneer with a grain pattern obtained in this way has a deep and sharp recess that simulates a conduit hole due to the embossed part and stain coloring, and resembles the appearance of natural oak wood with wiping coating. Also, the performance as a floor material passed the F type of JAS flooring material standard.
【００１８】〔実施例２〕表裏面から0.5mm 厚さまでの
表裏層部の平均比重が共に約1.0 である厚さが５mmの中
比重繊維板を片面側から約２mm研削し、研削側の表層部
0.5mm 厚さの平均比重が0.7 である中比重繊維板を得
た。この中比重繊維板２を厚さが９mmの中比重繊維板の
表面に、その研削面が表面となるように接着剤で貼着し
て化粧台板を作製した。この化粧台板の表面に上記実施
例１と同様の方法でナラ柄を印刷してなる化粧紙を貼着
すると共にこの化粧紙にナラ柄に沿ったエンボス加工を
施し、さらに、エンボス凹部のみを濃褐色ステインによ
って着色したのち、乾燥後、減摩材としてホワイトアル
ミナを10重量％添加したウレタンクリア塗料を化粧紙の
表面全面に塗布した。こうして得られた化粧板は実施例
１と同様に外観、性能ともに優れたものであった。Example 2 A medium-density fiberboard having a thickness of 5 mm and an average specific gravity of both the front and back layers from the front and back to a thickness of 0.5 mm both being about 1.0 was ground by about 2 mm from one side, and the surface layer on the ground side was ground. Department
A medium-density fiberboard having a thickness of 0.5 mm and an average specific gravity of 0.7 was obtained. The medium specific gravity fiber board 2 was adhered to the surface of the medium specific gravity fiber board having a thickness of 9 mm with an adhesive such that the ground surface thereof became a surface, thereby producing a decorative base plate. On the surface of this decorative base plate, a decorative paper formed by printing a oak pattern is adhered in the same manner as in Example 1 and embossing is performed on the decorative paper along the oak pattern. After coloring with dark brown stain, after drying, a urethane clear paint containing 10% by weight of white alumina as an antifriction material was applied to the entire surface of the decorative paper. The decorative plate thus obtained was excellent in appearance and performance as in Example 1.
【００１９】〔比較例〕表裏面から0.5mm 厚さまでの表
裏層部の平均比重が共に約0.9 である厚さが９mmの中比
重繊維板の表面にエチレン酢酸ビニル接着剤を約65g/m2
塗布し、105 ℃の乾燥機で20秒間風乾したのち、表面に
ナラ材の木目柄を印刷してなる23g/m2の化粧紙をラミネ
ータによって貼着した。しかるのち、ナラ材から木目模
様を凹凸に型取りしてなるエンボスプレートの型面を化
粧紙の表面に載置し、120 ℃で20分間押圧して化粧板の
上記ナラ柄印刷に沿ったエンボス部を加工した。COMPARATIVE EXAMPLE A medium and specific gravity fiberboard having a thickness of 9 mm and an average specific gravity of the front and back layers from the front and back to a thickness of 0.5 mm from both sides being about 0.9 mm was coated with about 65 g / m 2 of ethylene vinyl acetate adhesive on the surface.
After being applied and air-dried with a dryer at 105 ° C. for 20 seconds, a decorative paper of 23 g / m 2 having a grain pattern of oak wood printed on the surface was adhered by a laminator. After that, place the embossed plate formed by embossing the wood grain pattern from the oak wood on the surface of the decorative paper and press it at 120 ° C for 20 minutes to emboss the embossed plate along the above oak pattern printing on the decorative board. The part was processed.
【００２０】冷却後、ワイピングマシーンを使用してエ
ンボス凹部のみを濃褐色ステインで着色し、乾燥後、減
摩材としてホワイトアルミナを10重量％添加したウレタ
ンクリア塗料を化粧紙の表面全面に塗布した。こうして
得られた木目模様を有する木質化粧板は、エンボス時に
凹部のエッジに化粧紙の破れが生じており、そのため、
得られた化粧板はＪＡＳフローリング材規格の耐水Ａ試
験を行うとエンボス部に割れが生じた。After cooling, only the embossed concave portions were colored with dark brown stain using a wiping machine, and after drying, a urethane clear paint containing 10% by weight of white alumina as an antifriction material was applied to the entire surface of the decorative paper. . In the wood decorative board having a grain pattern obtained in this manner, the decorative paper is torn at the edge of the concave portion during embossing.
When the decorative board thus obtained was subjected to a water resistance A test according to the JAS flooring material standard, cracks occurred in the embossed portion.
【００２１】[0021]
【発明の効果】以上のように本発明の木質化粧板の製造
方法によれば、木質基板の表面に、表層側が低密度で裏
層側が高密度に形成された厚さが３mm以下の中比重繊維
板を、その高密度側の裏面を木質基板の表面に向けて積
層接着することにより化粧台板を形成し、この化粧台板
の表面に木目柄の印刷を設けてなる化粧紙を貼着したの
ちエンボス加工を施し、しかるのち、エンボス部にステ
イン着色を施すことを特徴とするものであるから、木質
基板の表面に貼着した中比重繊維板の厚みが３mm以下で
あって極めて薄いので、木質基板が合板である場合には
床材として使用した際における上向きに湾曲する所謂、
凹反りとなるのを軽減することができると共に、この中
比重繊維板によってワゴンのキャスターによる摺動的な
負荷やピアノの脚等からの局部荷重を受けても表面化粧
層に凹みや傷が生じ難くなるのは勿論、中比重繊維板の
低密度側を表面に向けてこの低密度層にエンボス加工を
施すものであるから、エンボスの型面に対する低密度層
の馴染性が良好で化粧紙が破損することなく深くてシャ
ープなエンボスを付与することができる。As described above, according to the method for manufacturing a decorative wooden board of the present invention, the surface of the wooden board has a low density on the surface layer and a high density on the back layer having a medium specific gravity of 3 mm or less. A decorative board is formed by laminating and bonding the fiberboard with its back side on the high-density side facing the surface of the wood substrate, and affixing decorative paper with woodgrain pattern printing on the surface of the decorative board. After that, embossing is applied, and then the embossed portion is stained. Since the thickness of the medium-density fiberboard attached to the surface of the wooden substrate is 3 mm or less, it is extremely thin. When the wooden substrate is plywood, it is curved upward when used as flooring, so-called,
In addition to reducing concave warpage, this medium specific gravity fiber board causes dents and scratches on the surface decorative layer even when subjected to sliding load by wagon casters or local load from piano legs etc. Of course, embossing is applied to this low-density layer with the low-density side of the medium-density fiberboard facing the surface. A deep and sharp emboss can be provided without breakage.
【００２２】さらに、エンボス部にステイン着色を施す
ので、天然木に酷似した導管柄を有する化粧板を製造し
得ると共に、エンボス加工を化粧紙に印刷している木目
柄に沿って設けておくことにより木目柄と導管柄とが調
和し、化粧性に優れた美麗な天然木目調の木質化粧板を
得ることができる。又、化粧紙を破損させることなくエ
ンボス加工を行うことができるので、化粧紙による優れ
た防水機能を付与することができる。Furthermore, since the embossed portion is stained, it is possible to manufacture a decorative board having a conduit pattern very similar to natural wood, and to provide embossing along the grain pattern printed on decorative paper. Thus, the woodgrain pattern and the conduit handle are harmonized, and a beautiful natural woodgrain-like wood decorative board with excellent cosmetic properties can be obtained. In addition, since embossing can be performed without damaging the decorative paper, an excellent waterproof function can be provided by the decorative paper.
【図１】化粧台板の一部の拡大簡略断面図、FIG. 1 is an enlarged simplified cross-sectional view of a part of a dressing base plate,
【図２】製造した化粧板の一部の拡大簡略断面図。FIG. 2 is an enlarged simplified cross-sectional view of a part of a manufactured decorative board.
１ 木質基板 ２ 中比重繊維板 2a 低密度層 2b 高密度層 ３ 化粧紙 ４ エンボス部 ５ ステイン着色層 DESCRIPTION OF SYMBOLS 1 Wood substrate 2 Medium specific gravity fiber board 2a Low density layer 2b High density layer 3 Decorative paper 4 Embossed part 5 Stain coloring layer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ３２Ｂ 7/02 Ｂ３２Ｂ 7/02 33/00 33/00 // Ｂ２９Ｋ 105:12 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI B32B 7/02 B32B 7/02 33/00 33/00 // B29K 105: 12
Claims (3)
層側が高密度に形成された厚さが３mm以下の中比重繊維
板を、その高密度側の裏面を木質基板の表面に向けて積
層接着することにより化粧台板を形成し、この化粧台板
の表面に木目柄の印刷を設けてなる化粧紙を貼着したの
ちエンボス加工を施し、しかるのち、エンボス部にステ
イン着色を施すことを特徴とする木質化粧板の製造方
法。1. A medium-density fiberboard having a low-density surface layer and a high-density backside layer having a thickness of 3 mm or less is formed on the surface of a wooden substrate, and the back surface on the high-density side faces the surface of the wooden substrate. A decorative base plate is formed by laminating and bonding, and a decorative paper having a wood grain pattern printed on the surface of the decorative base plate is adhered, embossed, and then the embossed portion is stained. A method for producing a decorative wooden board characterized by the above-mentioned.
て化粧紙の木目柄に沿った導管柄を形成することを特徴
とする請求項１に記載の木質化粧板の製造方法。2. The method according to claim 1, wherein the embossing process and the stain coloring form a conduit pattern along the grain pattern of the decorative paper.
厚の繊維層部分の平均密度が0.5 〜0.75であることを特
徴とする請求項１に記載の木質化粧板の製造方法。3. About 0.5 mm on the surface side of the medium specific gravity fiberboard
2. The method according to claim 1, wherein the thick fiber layer has an average density of 0.5 to 0.75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10116156A JPH11291203A (en) | 1998-04-09 | 1998-04-09 | Production of woody decorative board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10116156A JPH11291203A (en) | 1998-04-09 | 1998-04-09 | Production of woody decorative board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11291203A true JPH11291203A (en) | 1999-10-26 |
Family
ID=14680168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10116156A Pending JPH11291203A (en) | 1998-04-09 | 1998-04-09 | Production of woody decorative board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11291203A (en) |
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