JPH05147007A - Manufacture of decorative sheet - Google Patents
Manufacture of decorative sheetInfo
- Publication number
- JPH05147007A JPH05147007A JP32101291A JP32101291A JPH05147007A JP H05147007 A JPH05147007 A JP H05147007A JP 32101291 A JP32101291 A JP 32101291A JP 32101291 A JP32101291 A JP 32101291A JP H05147007 A JPH05147007 A JP H05147007A
- Authority
- JP
- Japan
- Prior art keywords
- veneer
- synthetic resin
- film
- adhesive
- resin liquid
- 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.)
- Granted
Links
Landscapes
- Finished Plywoods (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、木質基板上に木材単板
を接着、一体化させると同時に該木材単板内に合成樹脂
液を含浸、硬化させる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 manufacturing a decorative board in which a wood veneer is bonded and integrated on a wooden substrate and at the same time a synthetic resin solution is impregnated and cured in the wood veneer.
【０００２】[0002]
【従来の技術】従来から、木質基板に合成樹脂含浸処理
単板を積層、一体化してなる化粧板を製造する方法とし
ては、例えば、実公昭６０ー２８６１０号公報に記載さ
れているように木質基板上に木材単板を一体的に積層、
接着したのち、該単板上に合成樹脂液を塗布して含浸、
硬化させる方法や、木材単板に合成樹脂液を含浸、硬化
させて化粧単板を形成し、この化粧単板を木質基板上に
接着、一体化させる方法等が知られている。2. Description of the Related Art Conventionally, as a method for producing a decorative board which is obtained by laminating synthetic resin-impregnated single plates on a wooden substrate and integrating them, for example, as disclosed in Japanese Utility Model Publication No. 60-286610 Laminated wood veneer on the board,
After bonding, apply synthetic resin solution on the veneer and impregnate it,
Known methods include a method of curing, a method of impregnating a wood veneer with a synthetic resin solution and curing the veneer to form a decorative veneer, and adhering and integrating the decorative veneer on a wooden substrate.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前者の
方法によれば、木材単板上に合成樹脂液を塗布しただけ
では単板内部の空気と合成樹脂液の置換が粘度等の関係
でうまくいかなくて該合成樹脂液が単板内部にまで充分
に含浸させることができず、表層部は一見処理されてい
るように見えるが内部まで充分に含浸されていないた
め、樹脂含浸処理化粧板として強度上においても問題が
生じるものであり、また、後者の方法では、一旦、木材
単板に合成樹脂液を注入、硬化処理を施しておき、これ
を木質基板上に接着させるものであるから、単板内部ま
で充分に含浸できるが作業性が悪くて生産に長時間を要
し、多量生産に適さないという問題点があった。However, according to the former method, the replacement of the air inside the veneer with the synthetic resin solution is not successful simply by coating the veneer with the synthetic resin solution. Without this, the synthetic resin liquid cannot be sufficiently impregnated into the inside of the veneer, and the surface layer seems to be treated at first glance, but since it is not sufficiently impregnated into the inside, it is strong as a resin impregnated decorative plate. The above method also causes a problem, and in the latter method, the synthetic resin liquid is once injected into the wood veneer, and the hardening treatment is performed, and the wood veneer is bonded to the wood substrate. Although it is possible to sufficiently impregnate the inside of the plate, the workability is poor and the production requires a long time, which is not suitable for mass production.
【０００４】本発明はこのような問題点に鑑みてなされ
たものであり、接着剤として使用される合成樹脂と、単
板に注入される合成樹脂とはその性質および使用条件が
異なることを利用し、木質基板上への木材単板の接着
と、該木材単板への合成樹脂液の注入、硬化処理とを同
時に行って、合成樹脂液の充分な含浸処理と共に生産性
を一段と向上させることのできる化粧板の製造方法の提
供を目的とするものである。The present invention has been made in view of the above problems, and utilizes the fact that the synthetic resin used as an adhesive and the synthetic resin injected into a veneer have different properties and use conditions. Then, the adhesion of the wood veneer on the wooden substrate, the injection of the synthetic resin liquid to the wood veneer, and the curing treatment are simultaneously performed to further improve the productivity together with the sufficient impregnation treatment of the synthetic resin liquid. An object of the present invention is to provide a method for manufacturing a decorative board that can be manufactured.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の化粧板の製造方法は、まず、木質基板上に
エマルジョン系その他の接着剤を固形分で30ｇ／ｍ2=以
上の割合となるように塗布したのち、該接着剤を加熱そ
の他の手段によって、水その他の溶媒等を除去して造膜
させて造膜接着剤層に形成し、この造膜接着剤層上に適
宜塗布厚さの合成樹脂液を介して木材単板を重ね合わ
せ、しかるのち、加熱、加圧処理して木材単板内に合成
樹脂液を含浸、硬化させると共に木材単板を木質基板上
に接着、一体化させることを特徴とするものである。
尚、本発明では造膜接着剤層とは重合がある程度進行
し、膜状の層を形成するが、接着性能を有している状態
をいう。In order to achieve the above object, the method for producing a decorative board of the present invention is as follows. First, an emulsion-based adhesive or other adhesive is applied to a wooden substrate at a solid content of 30 g / m 2 or more. After coating so as to have a ratio, the adhesive is removed by heating or other means to remove water and other solvents to form a film to form a film-forming adhesive layer, and the film-forming adhesive layer is appropriately formed. Laminate wood veneers through the synthetic resin solution of the coating thickness, and then heat and pressurize the wood veneer to impregnate and cure the synthetic resin solution and bond the wood veneer onto the wooden substrate. , Is characterized by being integrated.
Incidentally, in the present invention, the film-forming adhesive layer means a state in which polymerization proceeds to some extent to form a film-like layer, but which has adhesive performance.
【０００６】[0006]
【作用】一般に木材に用いられる接着剤の樹脂は、注入
樹脂に比べ、重合度が高くかつ粘度の高いものが用いら
れる。それに対し、注入用樹脂は細胞内に入るために分
子量が小さくかつ低粘度のものが用いられる。そのため
に、木質基板上に塗布した接着剤層は固形分で30ｇ／ｍ
2=以上あれば、材中への吸収される分を除き該接着剤を
加熱等によって基板上に造膜される。この造膜接着剤層
上に注入用樹脂液を塗布した場合、造膜接着剤層によっ
て基材への浸透は阻止されて膜上に滞留する。In general, the adhesive resin used for wood has a higher degree of polymerization and a higher viscosity than the injected resin. On the other hand, the resin for injection has a small molecular weight and a low viscosity because it enters the cells. Therefore, the adhesive layer applied on the wooden substrate has a solid content of 30 g / m 2.
2 = If there is more than that, the adhesive is heated to form a film on the substrate, excluding the amount absorbed in the material. When the resin solution for injection is applied onto the film-forming adhesive layer, the film-forming adhesive layer blocks the permeation of the base material and stays on the film.
【０００７】この上に木材単板を積層して熱圧処理を施
すと、合成樹脂液は木質基板側に含浸するのを接着剤の
造膜によって阻止され、木材単板に向かって集中的に含
浸することになる。さらに、木材単板の細胞空隙部内の
空気は、合成樹脂液が下方より入るためにその含浸に従
って上方に逃げて容易に外部に排出されるので、合成樹
脂液は木材単板内に浸透し、加熱により流動性を増して
単板の細部まで注入され、さらに、加熱されることによ
り硬化して化粧単板となり、同時にこの化粧単板は前記
接着剤を介して木質基板上に接着、一体化するものであ
る。When a wood veneer is laminated on this and subjected to a heat and pressure treatment, the synthetic resin liquid is prevented from impregnating into the wood substrate side by the film formation of the adhesive, and concentrated toward the wood veneer. It will be impregnated. Furthermore, since the air in the cell voids of the wood veneer escapes upward as it is impregnated because the synthetic resin liquid enters from below and is easily discharged to the outside, the synthetic resin liquid permeates into the wood veneer. By heating, the flowability is increased and the details of the veneer are injected, and when heated, the veneer is cured and becomes a decorative veneer. At the same time, the decorative veneer is bonded and integrated on the wooden substrate via the adhesive. To do.
【０００８】上記接着剤として、酢酸ビニルや酢酸ビニ
ルーアクリル共重合体等のエマルジョン型接着剤を用い
ると、木質基板に対しての塗布作業が能率よく行えて好
ましい。又、接着剤の塗布量は木質基板の吸水性の大小
に応じて調整し、基板の表面がＭＤＦのように吸水性の
小さいものでは30ｇ／ｍ2=でも充分であるが、合板等の
ように吸水性の大きい木質基板においては70ｇ／ｍ2=以
上、塗布する必要がある。尚、この場合の塗布量は固型
分換算しており、通常は固型分が40〜60％の範囲で使用
される。It is preferable to use an emulsion type adhesive such as vinyl acetate or vinyl acetate-acrylic copolymer as the above-mentioned adhesive, because the coating work on the wooden substrate can be carried out efficiently. Also, the amount of adhesive applied should be adjusted according to the water absorbency of the wooden substrate. If the surface of the substrate has a low water absorbency such as MDF, 30 g / m 2 = is sufficient. Especially, it is necessary to apply 70 g / m 2 = or more on a wood substrate having a high water absorption. In this case, the coating amount is converted into the solid content, and the solid content is usually used in the range of 40 to 60%.
【０００９】[0009]
【実施例】次に、本発明の実施例を詳しく述べると、図
１において、まず、適宜厚さを有する合板、パーティク
ルボード、ハードボード等の木質基板１の上面全面に接
着剤を固形分で30ｇ／ｍ2=以上、好ましくは60ｇ／ｍ2=
以上の割合となるように塗布したのち、該接着剤を加熱
その他の手段によって水その他の溶媒を除き、反応させ
て造膜接着剤層２に形成する。EXAMPLE Next, an example of the present invention will be described in detail. In FIG. 1, first, an adhesive agent is applied to the entire upper surface of a wood substrate 1 such as plywood, particle board, and hard board having an appropriate thickness in a solid content. 30 g / m 2 = or more, preferably 60 g / m 2 =
After coating so as to have the above ratio, water and other solvents are removed from the adhesive by heating or other means, and the mixture is reacted to form the film-forming adhesive layer 2.
【００１０】このような接着剤としては、酢酸ビニル、
酢酸ビニルーアクリル共重合体等のエマルジョン型接着
剤や、ジアリルフタレート（ＤＡＰ）、ポリエステル等
の溶剤型接着剤を採用することができるが、エマルジョ
ン型接着剤の方が木質基板１に対して容易に塗布するこ
とができ、取扱いが容易であり好ましい。As such an adhesive, vinyl acetate,
Emulsion type adhesives such as vinyl acetate-acrylic copolymer and solvent type adhesives such as diallyl phthalate (DAP) and polyester can be adopted, but emulsion type adhesives are easier for the wooden substrate 1. It is preferable because it can be applied to the above, and handling is easy.
【００１１】また、接着剤を木質基板１に塗布したのち
造膜させるには、エマルジョン型接着剤の場合には、加
熱その他の手段によって接着剤中の水分を70〜80％除去
することによりエマルジョンが破壊され重合が進行して
膜状となることで造膜接着剤層２を得ることができ、溶
剤型接着剤の場合には、例えば、ポリエステル系のもの
では樹脂とスチレンとの共重合反応を一部行わせること
で造膜接着剤層２に形成することができる。なお、接着
剤としては、該造膜接着剤層２上に塗布される合成樹脂
液３に溶解しないもの、或いは造膜することで溶解しな
いものを用いることが必要である。Further, in order to form a film after applying the adhesive to the wooden substrate 1, in the case of an emulsion type adhesive, 70% to 80% of water in the adhesive is removed by heating or other means to form an emulsion. Is destroyed and polymerization proceeds to form a film-like adhesive layer 2. In the case of a solvent-type adhesive, for example, in the case of a polyester-based adhesive, a copolymerization reaction between a resin and styrene is performed. It is possible to form the film-forming adhesive layer 2 by partially performing the above. As the adhesive, it is necessary to use one that does not dissolve in the synthetic resin liquid 3 applied on the film-forming adhesive layer 2 or one that does not dissolve by forming a film.
【００１２】次いで、この造膜接着剤層２上に不飽和ポ
リエステル樹脂、その他の硬化性液状樹脂を所望量塗布
したのち、該合成樹脂液３上に厚さが0.4 〜1.2mm 程度
の木材単板４を積層する。このような木材単板４として
は、オーク、ナラ、カバ、セン、タモなどの樹種のもの
が用いられる。用いられる注入樹脂液としては、不飽和
ポリエステルを代表とする付加重合型樹脂液が硬化時に
縮合水を生じないので化粧性を損なうことがなく、適し
ている。Next, a desired amount of unsaturated polyester resin or other curable liquid resin is applied on the film-forming adhesive layer 2, and then the synthetic resin liquid 3 is coated with a single piece of wood having a thickness of about 0.4 to 1.2 mm. The plates 4 are laminated. As such a wood veneer 4, wood species such as oak, oak, hippo, sen, and duck are used. As an injection resin liquid used, an addition polymerization type resin liquid typified by unsaturated polyester does not generate condensed water at the time of curing, and therefore, does not impair cosmetic properties and is suitable.
【００１３】このように、木質基板１上に造膜接着剤層
２、合成樹脂液３を介して木材単板４を順次積層した状
態にしてホットプレス内に挿入し、木材単板４上を所定
温度と圧力でもって適宜時間加熱、加圧すると、合成樹
脂液３が流動性を付与されると同時に木質基板１と木材
単板４間で圧縮作用を受けてこれらの木質基板１と木材
単板４との対向面に浸入しようとする。As described above, the wood veneer 4 is sequentially laminated on the wooden substrate 1 with the film-forming adhesive layer 2 and the synthetic resin liquid 3 interposed therebetween, and the wood veneer 4 is inserted into the hot press to put the wood veneer 4 on the wood veneer 4. When the synthetic resin liquid 3 is made to flow by heating and pressurizing at a predetermined temperature and pressure for an appropriate period of time, the wooden substrate 1 and the wood veneer 4 are compressed by the compressive action between the wooden substrate 1 and the wood veneer 4. Attempts to penetrate into the surface facing the plate 4.
【００１４】この時、木質基板１と該合成樹脂液層３間
には造膜接着剤層２が介在しているので、合成樹脂液は
該造膜接着剤層２によって木質基板１側へ含浸するのを
阻止され、該合成樹脂液３が直接圧接している木材単板
４の下面からこの木材単板４内に含浸することになる。At this time, since the film-forming adhesive layer 2 is interposed between the wooden substrate 1 and the synthetic resin liquid layer 3, the synthetic resin liquid is impregnated into the wooden substrate 1 side by the film-forming adhesive layer 2. Therefore, the synthetic resin liquid 3 is impregnated into the wood veneer 4 from the lower surface of the wood veneer 4 which is in direct pressure contact.
【００１５】このように、木材単板４の下面から合成樹
脂液３が木材単板４内に浸入、上昇していくと、それに
応じて木材単板４の導管等の細胞空隙内に存在する空気
が上方に押し上げられるようにして逃げ、外部に排出さ
れて合成樹脂液３が木材単板内に容易に含浸する。この
際、予め、木材単板４の上面側にも合成樹脂液を塗布し
ておけば、上面側からも木材単板４内に樹脂液を含浸さ
せることができて、その含浸率を一層増大させることが
できる。As described above, when the synthetic resin liquid 3 enters into the wood veneer 4 from the lower surface of the wood veneer 4 and rises, the synthetic resin liquid 3 exists in the cell voids such as the conduits of the wood veneer 4 accordingly. The air escapes as it is pushed upwards and is discharged to the outside to easily impregnate the wood veneer with the synthetic resin liquid 3. At this time, if the synthetic resin liquid is also applied to the upper surface side of the wood veneer 4 in advance, the resin liquid can be impregnated into the wood veneer 4 from the upper surface side, and the impregnation rate is further increased. Can be made
【００１６】なお、造膜接着剤層２の塗布量が固形分で
30ｇ／ｍ2=以下の場合には、プレスによる圧力により合
成樹脂液３がその膜層を貫通して木質基板１側に浸入す
る虞れが生じるので、造膜接着剤層２により合成樹脂液
３が木質基板１側に含浸するのを効果的に阻止するには
その塗布量を固形分で30ｇ／ｍ2=以上としておく必要が
ある。The coating amount of the film-forming adhesive layer 2 is solid content.
In the case of 30 g / m 2 = or less, the synthetic resin liquid 3 may be penetrated by the pressure of the press into the wooden substrate 1 side through the film layer. In order to effectively prevent 3 from impregnating the wooden substrate 1 side, the coating amount must be 30 g / m 2 = or more in terms of solid content.
【００１７】この場合、木質基板１が中比重繊維板等の
ような吸水性の小さい板状体からなるものであれば、上
記合成樹脂液３の塗布量を固形分で30ｇ／ｍ2=以上、好
ましくは40〜60ｇ／ｍ2=の塗布量で充分な樹脂浸透阻止
効果を奏するが、合板等の吸水性が大きい木質基板の場
合には、樹脂の浸透阻止を効果的に行わせるためにはそ
の塗布量を固形分で70ｇ／ｍ2=以上とすることが望まし
い。In this case, if the wood substrate 1 is made of a plate having a low water absorption such as a medium specific gravity fiber board, the amount of the synthetic resin liquid 3 applied is 30 g / m 2 = solid content or more. , Preferably 40 to 60 g / m 2 = a sufficient amount of resin permeation-preventing effect is exerted, but in the case of a wood substrate having a large water absorption property such as plywood, in order to effectively prevent resin permeation It is desirable that the coating amount be 70 g / m 2 = or more in terms of solid content.
【００１８】こうして、ホットプレスによる熱圧処理を
所定時間行うと、樹脂液が流動性を与えられて単板の細
胞空隙内に含浸され、この合成樹脂液３が硬化して樹脂
含浸処理化粧単板となると同時に該化粧単板は前記接着
剤層２を介して木質基板１上に接着、一体化し、化粧板
が得られるものである。次に、本発明の具体的な実施例
を示す。In this way, when the hot press treatment by hot pressing is performed for a predetermined time, the resin liquid is given fluidity and impregnated into the cell voids of the veneer, and the synthetic resin liquid 3 is hardened so that the resin impregnation treatment is performed. At the same time as a board, the decorative veneer is bonded and integrated onto the wooden substrate 1 via the adhesive layer 2 to obtain a decorative board. Next, specific examples of the present invention will be shown.
【００１９】実施例 １ 厚さ12mmの合板を基板としてこの基板上面に、刷毛を使
用してメラミン架橋型変成酢ビエマルジョン接着剤を固
形分で100 ｇ／ｍ2=となるように塗布し、しかるのち、
温風乾燥機によって該接着剤を60℃、60分間加熱して水
分を略70％程度揮散させることにより、造膜した熱硬化
性接着剤層を形成した。Example 1 A plywood sheet having a thickness of 12 mm was used as a substrate, and a melamine cross-linked modified vinyl acetate emulsion adhesive was applied to the upper surface of the substrate using a brush so that the solid content was 100 g / m 2 = After a while,
The thermosetting adhesive layer formed into a film was formed by heating the adhesive at 60 ° C. for 60 minutes with a warm air dryer to volatilize about 70% of water.
【００２０】次いで、この造膜接着剤層上に、硬化剤と
してＢＰＯを１重量部添加している不飽和ポリエステル
樹脂液（粘度20ps／25℃）を330 ｇ／ｍ2=の割合でロー
ルにより塗布して厚みが略250μの樹脂層を設けたの
ち、この樹脂層上に厚さ0.5mmのミズナラの乾燥単板
（含水率10％）を載せると共に該単板に離型フイルムと
して厚さ20μのセロファンを載せたのち、ホットプレス
によって120 ℃、10分間、10kg／cm2=の条件で熱圧し
た。この熱圧処理によって樹脂液が単板の細胞空隙内に
含浸、硬化すると共に該単板が接着剤層によって基板に
一体化してなる化粧板が得られた。Then, an unsaturated polyester resin liquid (viscosity 20 ps / 25 ° C.) containing 1 part by weight of BPO as a curing agent was rolled on the film-forming adhesive layer at a rate of 330 g / m 2 = by a roll. After coating to form a resin layer with a thickness of approximately 250μ, a 0.5 mm thick dried oak veneer (water content 10%) is placed on this resin layer and a thickness of 20 μm is used as a release film on the veneer. After placing the cellophane of No. 1 above, it was hot pressed by hot pressing at 120 ° C. for 10 minutes under the condition of 10 kg / cm 2 =. By this heat and pressure treatment, a veneer was obtained in which the resin liquid was impregnated in the cell voids of the veneer and cured, and the veneer was integrated with the substrate by the adhesive layer.
【００２１】実施例 ２ 上記実施例１において、単板の両面に樹脂液をそれぞれ
330 ｇ／ｍ2=の割合で塗布し、この単板を実施例１で示
した基板上の造膜接着剤層上にその下面側の樹脂液層を
介して積層すると共に単板上面側の樹脂液層上に離型フ
イルムを載せ、ホットプレスによって実施例と同一条件
で熱圧処理することにより、樹脂注入処理単板貼り化粧
板を得た。これらの各実施例によって得られた化粧板の
単板の木口面を顕微鏡で観察すると、導管等の細胞空隙
部内への樹脂注入率が90％以上に達していた。Example 2 In Example 1, the resin liquid was applied to both surfaces of the single plate.
It was applied at a rate of 330 g / m 2 =, and this veneer was laminated on the film-forming adhesive layer on the substrate shown in Example 1 via the resin liquid layer on the lower side thereof and at the same time, on the upper side of the veneer. A release film was placed on the resin liquid layer and hot pressed under the same conditions as in Example to obtain a resin-injected single-plate-coated decorative plate. When the veneer surface of the veneer veneer obtained in each of these Examples was observed with a microscope, the resin injection rate into the cell voids such as conduits reached 90% or more.
【００２２】比較例 上記実施例１と同一基板と単板及び接着剤を使用して、
基板上に接着剤を塗布したのち、該接着剤を造膜するこ
となく直ちに単板を積層して一体的に接着し、しかるの
ち、該単板の上面に上記実施例１と同一合成樹脂液を同
一量塗布し、ホットプレスによって同一条件で熱圧処理
した。こうした得られた化粧板の単板の木口面を顕微鏡
で観察すると導管等の細胞空隙部内への樹脂注入率が50
％程度に過ぎないものであった。Comparative Example Using the same substrate, single plate and adhesive as in Example 1 above,
After the adhesive is applied on the substrate, the single plates are immediately laminated and integrally bonded without forming a film of the adhesive, and then the same synthetic resin solution as that of the above-described Example 1 is applied to the upper surface of the single plate. Was applied in the same amount and hot-pressed under the same conditions by hot pressing. When the veneer surface of the veneer thus obtained is observed with a microscope, the resin injection rate into the cell voids such as conduits is 50%.
It was only about%.
【００２３】[0023]
【発明の効果】以上のように本発明の化粧板の製造方法
によれば、木質基板上に接着剤を固形分で30ｇ／ｍ2=以
上の割合となるように塗布したのち、該接着剤を加熱そ
の他の手段によって造膜接着剤層に形成し、この造膜接
着剤層上に合成樹脂液を介して木材単板を重ね合わせ、
加熱加圧処理するものであるから、木質基板上に固形分
で30ｇ／ｍ2=以上塗布した接着剤を造膜させているの
で、この上に適宜塗布厚さの合成樹脂液を介して木材単
板を積層して熱圧処理を施した際に合成樹脂液が木質基
板側に含浸するのを造膜した接着剤層によって確実に阻
止することができ、木材単板内に該樹脂液を多量に含浸
させることができるものである。As described above, according to the method for manufacturing a decorative board of the present invention, an adhesive is applied to a wooden substrate so that the solid content is 30 g / m 2 = or more, and then the adhesive is applied. Is formed into a film-forming adhesive layer by heating or other means, and a wood veneer is superposed on the film-forming adhesive layer via a synthetic resin liquid,
Since it is a heat and pressure treatment, an adhesive is applied on a wooden substrate with a solid content of 30 g / m 2 = or more, so a film is formed on it. It is possible to reliably prevent the synthetic resin liquid from impregnating the wooden substrate side when the laminated veneers are subjected to the heat and pressure treatment, by the adhesive layer formed into a film, and the resin liquid is placed in the wooden veneer. It can be impregnated in a large amount.
【００２４】さらに、木材単板の細胞空隙部内の空気は
合成樹脂液の含浸に従って外部に排出されるので、合成
樹脂液を木材単板の該細胞空隙部内に容易且つ円滑に含
浸させることができ、木材単板の表面にまで合成樹脂液
が充分に含浸すると同時に、接着剤層を介して木材単板
が木質基板に一体化して硬度や強度等に優れた物性を有
する樹脂注入処理単板貼り化粧板を能率よく且つ安定的
に製造し得るものである。Furthermore, since the air in the cell voids of the wood veneer is discharged to the outside in accordance with the impregnation of the synthetic resin liquid, the synthetic resin liquid can be easily and smoothly impregnated into the cell voids of the wood veneer. , The surface of the wood veneer is sufficiently impregnated with the synthetic resin liquid, and at the same time, the wood veneer is integrated with the wood substrate through the adhesive layer, and the resin injection-processed veneer is attached, which has excellent physical properties such as hardness and strength. The decorative board can be manufactured efficiently and stably.
【図１】木質基板上に造膜接着剤層と合成樹脂液を介し
て木材単板を積層した状態を示す簡略断面図。FIG. 1 is a simplified cross-sectional view showing a state in which a wood veneer is laminated on a wooden substrate with a film-forming adhesive layer and a synthetic resin liquid interposed therebetween.
１ 木質基板 ２ 造膜接着剤層 ３ 合成樹脂液 ４ 木材単板 1 Wood substrate 2 Film forming adhesive layer 3 Synthetic resin liquid 4 Wood veneer
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１月２８日[Submission date] January 28, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項１[Name of item to be corrected] Claim 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】発明の詳細な説明[Name of item to be amended] Detailed explanation of the invention
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、木質基板上に木材単板
を接着、一体化させると同時に該木材単板内に合成樹脂
液を含浸、硬化させる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 manufacturing a decorative board in which a wood veneer is bonded and integrated on a wooden substrate and at the same time a synthetic resin solution is impregnated and cured in the wood veneer.
【０００２】[0002]
【従来の技術】従来から、木質基板に合成樹脂含浸処理
単板を積層、一体化してなる化粧板を製造する方法とし
ては、例えば、実公昭６０ー２８６１０号公報に記載さ
れているように木質基板上に木材単板を一体的に積層、
接着したのち、該単板上に合成樹脂液を塗布して含浸、
硬化させる方法や、木材単板に合成樹脂液を含浸、硬化
させて化粧単板を形成し、この化粧単板を木質基板上に
接着、一体化させる方法等が知られている。2. Description of the Related Art Conventionally, as a method for producing a decorative board which is obtained by laminating synthetic resin-impregnated single plates on a wooden substrate and integrating them, for example, as disclosed in Japanese Utility Model Publication No. 60-286610 Laminated wood veneer on the board,
After bonding, apply synthetic resin solution on the veneer and impregnate it,
Known methods include a method of curing, a method of impregnating a wood veneer with a synthetic resin solution and curing the veneer to form a decorative veneer, and adhering and integrating the decorative veneer on a wooden substrate.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前者の
方法によれば、木材単板上に合成樹脂液を塗布しただけ
では単板内部の空気と合成樹脂液の置換が粘度等の関係
でうまくいかなくて該合成樹脂液が単板内部にまで充分
に含浸させることができず、表層部は一見処理されてい
るように見えるが内部まで充分に含浸されていないた
め、樹脂含浸処理化粧板として強度上においても問題が
生じるものであり、また、後者の方法では、一旦、木材
単板に合成樹脂液を注入、硬化処理を施しておき、これ
を木質基板上に接着させるものであるから、単板内部ま
で充分に含浸できるが作業性が悪くて生産に長時間を要
し、多量生産に適さないという問題点があった。However, according to the former method, the replacement of the air inside the veneer with the synthetic resin solution is not successful simply by coating the veneer with the synthetic resin solution. Without this, the synthetic resin liquid cannot be sufficiently impregnated into the inside of the veneer, and the surface layer seems to be treated at first glance, but since it is not sufficiently impregnated into the inside, it is strong as a resin impregnated decorative plate. The above method also causes a problem, and in the latter method, the synthetic resin liquid is once injected into the wood veneer, and the hardening treatment is performed, and the wood veneer is bonded to the wood substrate. Although it is possible to sufficiently impregnate the inside of the plate, the workability is poor and the production requires a long time, which is not suitable for mass production.
【０００４】本発明はこのような問題点に鑑みてなされ
たものであり、接着剤として使用される合成樹脂と、単
板に注入される合成樹脂とはその性質および使用条件が
異なることを利用し、木質基板上への木材単板の接着
と、該木材単板への合成樹脂液の注入、硬化処理とを同
時に行って、合成樹脂液の充分な含浸処理と共に生産性
を一段と向上させることのできる化粧板の製造方法の提
供を目的とするものである。The present invention has been made in view of the above problems, and utilizes the fact that the synthetic resin used as an adhesive and the synthetic resin injected into a veneer have different properties and use conditions. Then, the adhesion of the wood veneer on the wooden substrate, the injection of the synthetic resin liquid to the wood veneer, and the curing treatment are simultaneously performed to further improve the productivity together with the sufficient impregnation treatment of the synthetic resin liquid. An object of the present invention is to provide a method for manufacturing a decorative board that can be manufactured.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の化粧板の製造方法は、まず、木質基板上に
エマルジョン系その他の接着剤を固形分で30ｇ／m2 以上
の割合となるように塗布したのち、該接着剤を加熱その
他の手段によって、水その他の溶媒等を除去して造膜さ
せて造膜接着剤層に形成し、この造膜接着剤層上に適宜
塗布厚さの合成樹脂液を介して木材単板を重ね合わせ、
しかるのち、加熱、加圧処理して木材単板内に合成樹脂
液を含浸、硬化させると共に木材単板を木質基板上に接
着、一体化させることを特徴とするものである。尚、本
発明では造膜接着剤層とは、膜状の層を形成するが、接
着性能を有している状態をいう。In order to achieve the above object, in the method for producing a decorative board of the present invention, first, an emulsion-based adhesive or other adhesive is added onto a wooden substrate at a solid content of 30 g / m 2 or more. After coating so that the adhesive is heated and other means to remove water and other solvents to form a film to form a film-forming adhesive layer, and the film-forming adhesive layer is coated appropriately. Laminated wood veneer through synthetic resin liquid of thickness,
After that, the wood veneer is characterized in that it is heated and pressure-treated to impregnate the wood veneer with the synthetic resin liquid and harden it, and at the same time, the wood veneer is bonded and integrated on the wood substrate. In the present invention, the film-forming adhesive layer means a state in which a film-shaped layer is formed but has adhesive performance.
【０００６】[0006]
【作用】一般に木材に用いられる接着剤の樹脂は、注入
樹脂に比べ、重合度が高くかつ粘度の高いものが用いら
れる。それに対し、注入用樹脂は細胞内に入るために分
子量が小さくかつ低粘度のものが用いられる。そのため
に、木質基板上に塗布した接着剤層は固形分で30ｇ／m2
以上あれば、材中への吸収される分を除き該接着剤を加
熱等によって基板上に造膜される。この造膜接着剤層上
に注入用樹脂液を塗布した場合、造膜接着剤層によって
基材への浸透は阻止されて膜上に滞留する。In general, the adhesive resin used for wood has a higher degree of polymerization and a higher viscosity than the injected resin. On the other hand, the resin for injection has a small molecular weight and a low viscosity because it enters the cells. Therefore, the adhesive layer applied on the wooden substrate has a solid content of 30 g / m 2
With the above, the adhesive is formed on the substrate by heating or the like, excluding the amount absorbed in the material. When the resin solution for injection is applied onto the film-forming adhesive layer, the film-forming adhesive layer blocks the permeation of the base material and stays on the film.
【０００７】この上に木材単板を積層して熱圧処理を施
すと、合成樹脂液は木質基板側に含浸するのを接着剤の
造膜によって阻止され、木材単板に向かって集中的に含
浸することになる。さらに、木材単板の細胞空隙部内の
空気は、合成樹脂液が下方より入るためにその含浸に従
って上方に逃げて容易に外部に排出されるので、合成樹
脂液は木材単板内に浸透し、加熱により流動性を増して
単板の細部まで注入され、さらに、加熱されることによ
り硬化して化粧単板となり、同時にこの化粧単板は前記
接着剤を介して木質基板上に接着、一体化するものであ
る。When a wood veneer is laminated on this and subjected to a heat and pressure treatment, the synthetic resin liquid is prevented from impregnating into the wood substrate side by the film formation of the adhesive, and concentrated toward the wood veneer. It will be impregnated. Furthermore, since the air in the cell voids of the wood veneer escapes upward as it is impregnated because the synthetic resin liquid enters from below and is easily discharged to the outside, the synthetic resin liquid permeates into the wood veneer. By heating, the flowability is increased and the details of the veneer are injected, and when heated, the veneer is cured and becomes a decorative veneer. At the same time, the decorative veneer is bonded and integrated on the wooden substrate via the adhesive. To do.
【０００８】上記接着剤として、酢酸ビニルや酢酸ビニ
ルーアクリル共重合体等のエマルジョン型接着剤を用い
ると、木質基板に対しての塗布作業が能率よく行えて好
ましい。又、接着剤の塗布量は木質基板の吸水性の大小
に応じて調整し、基板の表面がＭＤＦのように吸水性の
小さいものでは30ｇ／m2 でも充分であるが、合板等のよ
うに吸水性の大きい木質基板においては70ｇ／m2 以上、
塗布する必要がある。尚、この場合の塗布量は固型分換
算しており、通常は固型分が40〜60％の範囲で使用され
る。It is preferable to use an emulsion type adhesive such as vinyl acetate or vinyl acetate-acrylic copolymer as the above-mentioned adhesive, because the coating work on the wooden substrate can be carried out efficiently. Also, the amount of adhesive applied is adjusted according to the water absorption of the wooden substrate. If the surface of the substrate has a low water absorption such as MDF, 30 g / m 2 is sufficient, but as with plywood. 70g / m 2 or more for wooden boards with high water absorption,
Need to be applied. In this case, the coating amount is converted into the solid content, and the solid content is usually used in the range of 40 to 60%.
【０００９】[0009]
【実施例】次に、本発明の実施例を詳しく述べると、図
１において、まず、適宜厚さを有する合板、パーティク
ルボード、ハードボード等の木質基板１の上面全面に接
着剤を固形分で30ｇ／m2 以上、好ましくは60ｇ／m2 以上
の割合となるように塗布したのち、該接着剤を加熱その
他の手段によって水その他の溶媒を除き、造膜接着剤層
２に形成する。EXAMPLE Next, an example of the present invention will be described in detail. In FIG. 1, first, an adhesive agent is applied to the entire upper surface of a wood substrate 1 such as plywood, particle board, and hard board having an appropriate thickness in a solid content. After coating at a rate of 30 g / m 2 or more, preferably 60 g / m 2 or more, the adhesive is removed by heating or other means to remove water and other solvents, and a film-forming adhesive layer
Form 2 .
【００１０】このような接着剤としては、酢酸ビニル、
酢酸ビニルーアクリル共重合体等のエマルジョン型接着
剤や、ジアリルフタレート（ＤＡＰ）、ポリエステル等
の溶剤型接着剤を採用することができるが、エマルジョ
ン型接着剤の方が木質基板１に対して容易に塗布するこ
とができ、取扱いが容易であり好ましい。As such an adhesive, vinyl acetate,
Emulsion type adhesives such as vinyl acetate-acrylic copolymer and solvent type adhesives such as diallyl phthalate (DAP) and polyester can be adopted, but emulsion type adhesives are easier for the wooden substrate 1. It is preferable because it can be applied to the above, and handling is easy.
【００１１】また、接着剤を木質基板１に塗布したのち
造膜させるには、エマルジョン型接着剤の場合には、加
熱その他の手段によって接着剤中の水分を70〜80％除去
することによりエマルジョンが破壊され重合が進行して
膜状となることで造膜接着剤層２を得ることができ、溶
剤型接着剤の場合には、例えば、ポリエステル系のもの
では樹脂とスチレンとの共重合反応を一部行わせること
で造膜接着剤層２に形成することができる。なお、接着
剤としては、該造膜接着剤層２上に塗布される合成樹脂
液３に溶解しないもの、或いは造膜することで溶解しな
いものを用いることが必要である。Further, in order to form a film after applying the adhesive to the wooden substrate 1, in the case of an emulsion type adhesive, 70% to 80% of water in the adhesive is removed by heating or other means to form an emulsion. Is destroyed and polymerization proceeds to form a film-like adhesive layer 2. In the case of a solvent-type adhesive, for example, in the case of a polyester-based adhesive, a copolymerization reaction between a resin and styrene is performed. It is possible to form the film-forming adhesive layer 2 by partially performing the above. As the adhesive, it is necessary to use one that does not dissolve in the synthetic resin liquid 3 applied on the film-forming adhesive layer 2 or one that does not dissolve by forming a film.
【００１２】次いで、この造膜接着剤層２上に不飽和ポ
リエステル樹脂、その他の硬化性液状樹脂を所望量塗布
したのち、該合成樹脂液３上に厚さが0.4 〜1.2mm 程度
の木材単板４を積層する。このような木材単板４として
は、オーク、ナラ、カバ、セン、タモなどの樹種のもの
が用いられる。用いられる注入樹脂液としては、不飽和
ポリエステルを代表とする付加重合型樹脂液が硬化時に
縮合水を生じないので化粧性を損なうことがなく、適し
ている。Next, a desired amount of unsaturated polyester resin or other curable liquid resin is applied on the film-forming adhesive layer 2, and then the synthetic resin liquid 3 is coated with a single piece of wood having a thickness of about 0.4 to 1.2 mm. The plates 4 are laminated. As such a wood veneer 4, wood species such as oak, oak, hippo, sen, and duck are used. As an injection resin liquid used, an addition polymerization type resin liquid typified by unsaturated polyester does not generate condensed water at the time of curing, and therefore, does not impair cosmetic properties and is suitable.
【００１３】このように、木質基板１上に造膜接着剤層
２、合成樹脂液３を介して木材単板４を順次積層した状
態にしてホットプレス内に挿入し、木材単板４上を所定
温度と圧力でもって適宜時間加熱、加圧すると、合成樹
脂液３が流動性を付与されると同時に木質基板１と木材
単板４間で圧縮作用を受けてこれらの木質基板１と木材
単板４との対向面に浸入しようとする。As described above, the wood veneer 4 is sequentially laminated on the wooden substrate 1 with the film-forming adhesive layer 2 and the synthetic resin liquid 3 interposed therebetween, and the wood veneer 4 is inserted into the hot press to put the wood veneer 4 on the wood veneer 4. When the synthetic resin liquid 3 is made to flow by heating and pressurizing at a predetermined temperature and pressure for an appropriate period of time, the wooden substrate 1 and the wood veneer 4 are compressed by the compressive action between the wooden substrate 1 and the wood veneer 4. Attempts to penetrate into the surface facing the plate 4.
【００１４】この時、木質基板１と該合成樹脂液層３間
には造膜接着剤層２が介在しているので、合成樹脂液は
該造膜接着剤層２によって木質基板１側へ含浸するのを
阻止され、該合成樹脂液３が直接圧接している木材単板
４の下面からこの木材単板４内に含浸することになる。At this time, since the film-forming adhesive layer 2 is interposed between the wooden substrate 1 and the synthetic resin liquid layer 3, the synthetic resin liquid is impregnated into the wooden substrate 1 side by the film-forming adhesive layer 2. Therefore, the synthetic resin liquid 3 is impregnated into the wood veneer 4 from the lower surface of the wood veneer 4 which is in direct pressure contact.
【００１５】このように、木材単板４の下面から合成樹
脂液３が木材単板４内に浸入、上昇していくと、それに
応じて木材単板４の導管等の細胞空隙内に存在する空気
が上方に押し上げられるようにして逃げ、外部に排出さ
れて合成樹脂液３が木材単板内に容易に含浸する。この
際、予め、木材単板４の上面側にも合成樹脂液を塗布し
ておけば、上面側からも木材単板４内に樹脂液を含浸さ
せることができて、その含浸率を一層増大させることが
できる。As described above, when the synthetic resin liquid 3 enters into the wood veneer 4 from the lower surface of the wood veneer 4 and rises, the synthetic resin liquid 3 exists in the cell voids such as the conduits of the wood veneer 4 accordingly. The air escapes as it is pushed upwards and is discharged to the outside to easily impregnate the wood veneer with the synthetic resin liquid 3. At this time, if the synthetic resin liquid is also applied to the upper surface side of the wood veneer 4 in advance, the resin liquid can be impregnated into the wood veneer 4 from the upper surface side, and the impregnation rate is further increased. Can be made
【００１６】なお、造膜接着剤層２の塗布量が固形分で
30ｇ／m2 以下の場合には、プレスによる圧力により合成
樹脂液３がその膜層を貫通して木質基板１側に浸入する
虞れが生じるので、造膜接着剤層２により合成樹脂液３
が木質基板１側に含浸するのを効果的に阻止するにはそ
の塗布量を固形分で30ｇ／m2 以上としておく必要があ
る。The coating amount of the film-forming adhesive layer 2 is solid content.
In the case of 30 g / m 2 or less, the synthetic resin liquid 3 may be penetrated by the pressure of the press into the wooden substrate 1 side through the film layer.
In order to effectively prevent the wood substrate 1 from impregnating the wood substrate 1, it is necessary to set the coating amount to 30 g / m 2 or more in terms of solid content.
【００１７】この場合、木質基板１が中比重繊維板等の
ような吸水性の小さい板状体からなるものであれば、上
記合成樹脂液３の塗布量を固形分で30ｇ／m2 以上、好ま
しくは40〜60ｇ／m2 の塗布量で充分な樹脂浸透阻止効果
を奏するが、合板等の吸水性が大きい木質基板の場合に
は、樹脂の浸透阻止を効果的に行わせるためにはその塗
布量を固形分で70ｇ／m2 以上とすることが望ましい。In this case, if the wooden substrate 1 is made of a plate having a low water absorption property such as a medium specific gravity fiberboard, the amount of the synthetic resin liquid 3 applied is 30 g / m 2 or more in solid content, Preferably, a coating amount of 40 to 60 g / m 2 exerts a sufficient resin permeation-inhibiting effect, but in the case of a wood substrate having a large water absorption property such as plywood, in order to effectively prevent resin permeation, The coating amount is preferably 70 g / m 2 or more in terms of solid content.
【００１８】こうして、ホットプレスによる熱圧処理を
所定時間行うと、樹脂液が流動性を与えられて単板の細
胞空隙内に含浸され、この合成樹脂液３が硬化して樹脂
含浸処理化粧単板となると同時に該化粧単板は前記接着
剤層２を介して木質基板１上に接着、一体化し、化粧板
が得られるものである。次に、本発明の具体的な実施例
を示す。In this way, when the hot press treatment by hot pressing is performed for a predetermined time, the resin liquid is given fluidity and impregnated into the cell voids of the veneer, and the synthetic resin liquid 3 is hardened so that the resin impregnation treatment is performed. At the same time as a board, the decorative veneer is bonded and integrated onto the wooden substrate 1 via the adhesive layer 2 to obtain a decorative board. Next, specific examples of the present invention will be shown.
【００１９】実施例 １ 厚さ12mmの合板を基板としてこの基板上面に、刷毛を使
用してメラミン架橋型変成酢ビエマルジョン接着剤を固
形分で100 ｇ／m2 となるように塗布し、しかるのち、温
風乾燥機によって該接着剤を60℃、60分間加熱して水分
を略70％程度揮散させることにより、造膜した熱硬化性
接着剤層を形成した。Example 1 A plywood sheet having a thickness of 12 mm was used as a substrate, and a melamine cross-linked modified vinyl acetate emulsion adhesive was applied to the upper surface of the substrate so as to have a solid content of 100 g / m 2 by using a brush. After that, the adhesive was heated with a warm air dryer at 60 ° C. for 60 minutes to vaporize about 70% of water to form a thermosetting adhesive layer formed into a film.
【００２０】次いで、この造膜接着剤層上に、硬化剤と
してＢＰＯを１重量部添加している不飽和ポリエステル
樹脂液（粘度20ps／25℃）を330 ｇ／m2 の割合でロール
により塗布して厚みが略250 μの樹脂層を設けたのち、
この樹脂層上に厚さ0.5mm のミズナラの乾燥単板（含水
率10％）を載せると共に該単板に離型フイルムとして厚
さ20μのセロファンを載せたのち、ホットプレスによっ
て120 ℃、10分間、10kg／cm2=の条件で熱圧した。この
熱圧処理によって樹脂液が単板の細胞空隙内に含浸、硬
化すると共に該単板が接着剤層によって基板に一体化し
てなる化粧板が得られた。Next, an unsaturated polyester resin liquid (viscosity 20 ps / 25 ° C.) containing 1 part by weight of BPO as a curing agent was applied onto the film-forming adhesive layer by a roll at a rate of 330 g / m 2. After providing a resin layer with a thickness of about 250 μ,
A 0.5 mm thick dried oak veneer (water content 10%) is placed on this resin layer, and a cellophane 20 μm thick is placed on the veneer as a release film, and then hot pressed at 120 ° C for 10 minutes. , 10 kg / cm 2 = and hot pressed. By this heat and pressure treatment, a veneer was obtained in which the resin liquid was impregnated in the cell voids of the veneer and cured, and the veneer was integrated with the substrate by the adhesive layer.
【００２１】実施例 ２ 上記実施例１において、単板の両面に樹脂液をそれぞれ
330 ｇ／m2 の割合で塗布し、この単板を実施例１で示し
た基板上の造膜接着剤層上にその下面側の樹脂液層を介
して積層すると共に単板上面側の樹脂液層上に離型フイ
ルムを載せ、ホットプレスによって実施例と同一条件で
熱圧処理することにより、樹脂注入処理単板貼り化粧板
を得た。これらの各実施例によって得られた化粧板の単
板の木口面を顕微鏡で観察すると、導管等の細胞空隙部
内への樹脂注入率が90％以上に達していた。Example 2 In Example 1, the resin liquid was applied to both surfaces of the single plate.
The veneer was applied at a rate of 330 g / m 2 , and this veneer was laminated on the film-forming adhesive layer on the substrate shown in Example 1 with a resin liquid layer on the lower side thereof and a resin on the upper side of the veneer. A release film was placed on the liquid layer and hot pressed under the same conditions as in Example to obtain a resin-injected veneer-coated decorative plate. When the veneer surface of the veneer veneer obtained in each of these Examples was observed with a microscope, the resin injection rate into the cell voids such as conduits reached 90% or more.
【００２２】比較例 上記実施例１と同一基板と単板及び接着剤を使用して、
基板上に接着剤を塗布したのち、該接着剤を造膜するこ
となく直ちに単板を積層して一体的に接着し、しかるの
ち、該単板の上面に上記実施例１と同一合成樹脂液を同
一量塗布し、ホットプレスによって同一条件で熱圧処理
した。こうした得られた化粧板の単板の木口面を顕微鏡
で観察すると導管等の細胞空隙部内への樹脂注入率が50
％程度に過ぎないものであった。Comparative Example Using the same substrate, single plate and adhesive as in Example 1 above,
After the adhesive is applied on the substrate, the single plates are immediately laminated and integrally bonded without forming a film of the adhesive, and then the same synthetic resin solution as that of the above-described Example 1 is applied to the upper surface of the single plate. Was applied in the same amount and hot-pressed under the same conditions by hot pressing. When the veneer surface of the veneer thus obtained is observed with a microscope, the resin injection rate into the cell voids such as conduits is 50%.
It was only about%.
【００２３】[0023]
【発明の効果】以上のように本発明の化粧板の製造方法
によれば、木質基板上に接着剤を固形分で30ｇ／m2 以上
の割合となるように塗布したのち、該接着剤を加熱その
他の手段によって造膜接着剤層に形成し、この造膜接着
剤層上に合成樹脂液を介して木材単板を重ね合わせ、加
熱加圧処理するものであるから、木質基板上に固形分で
30ｇ／m2 以上塗布した接着剤を造膜させているので、こ
の上に適宜塗布厚さの合成樹脂液を介して木材単板を積
層して熱圧処理を施した際に合成樹脂液が木質基板側に
含浸するのを造膜した接着剤層によって確実に阻止する
ことができ、木材単板内に該樹脂液を多量に含浸させる
ことができるものである。As described above, according to the method for producing a decorative board of the present invention, an adhesive is applied on a wooden substrate so that the solid content is 30 g / m 2 or more, and then the adhesive is applied. It is formed into a film-forming adhesive layer by heating or other means, and a wood veneer is superposed on this film-forming adhesive layer through a synthetic resin solution, and heat and pressure treatment is applied. In minutes
Since 30 g / m 2 or more of the applied adhesive is formed into a film, the synthetic resin solution is applied when a wood veneer is laminated on it with a synthetic resin solution of an appropriate coating thickness and subjected to heat pressure treatment. It is possible to reliably prevent the wood substrate side from being impregnated with the adhesive layer formed into a film, and it is possible to impregnate the wood veneer with a large amount of the resin liquid.
【００２４】さらに、木材単板の細胞空隙部内の空気は
合成樹脂液の含浸に従って外部に排出されるので、合成
樹脂液を木材単板の該細胞空隙部内に容易且つ円滑に含
浸させることができ、木材単板の表面にまで合成樹脂液
が充分に含浸すると同時に、接着剤層を介して木材単板
が木質基板に一体化して硬度や強度等に優れた物性を有
する樹脂注入処理単板貼り化粧板を能率よく且つ安定的
に製造し得るものである。Furthermore, since the air in the cell voids of the wood veneer is discharged to the outside in accordance with the impregnation of the synthetic resin liquid, the synthetic resin liquid can be easily and smoothly impregnated into the cell voids of the wood veneer. , The surface of the wood veneer is sufficiently impregnated with the synthetic resin liquid, and at the same time, the wood veneer is integrated with the wood substrate through the adhesive layer, and the resin injection-processed veneer is attached, which has excellent physical properties such as hardness and strength. The decorative board can be manufactured efficiently and stably.
Claims (2)
2=以上の割合となるように塗布したのち、該接着剤を加
熱その他の手段によって造膜接着剤層に形成し、この造
膜接着剤層上に合成樹脂液を介して木材単板を重ね合わ
せ、加熱加圧処理して木材単板内に合成樹脂液を含浸、
硬化させると共に木材単板を木質基板上に接着、一体化
させることを特徴とする化粧板の製造方法。1. An adhesive agent having a solid content of 30 g / m on a wooden substrate.
2 = After coating so as to have a ratio of above, the adhesive is formed into a film-forming adhesive layer by heating or other means, and a wood veneer is laid on this film-forming adhesive layer with a synthetic resin solution interposed therebetween. Combined, heat and pressure treatment to impregnate the wood veneer with synthetic resin liquid,
A method for manufacturing a decorative board, which comprises curing and adhering and integrating a wood veneer on a wooden substrate.
エマルジョン接着剤であることを特徴とする請求項１記
載の化粧板の製造方法。2. The method for manufacturing a decorative board according to claim 1, wherein the adhesive is an emulsion adhesive such as vinyl acetate or acrylic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3321012A JP3067868B2 (en) | 1991-11-09 | 1991-11-09 | Manufacturing method of decorative board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3321012A JP3067868B2 (en) | 1991-11-09 | 1991-11-09 | Manufacturing method of decorative board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05147007A true JPH05147007A (en) | 1993-06-15 |
| JP3067868B2 JP3067868B2 (en) | 2000-07-24 |
Family
ID=18127809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3321012A Expired - Lifetime JP3067868B2 (en) | 1991-11-09 | 1991-11-09 | Manufacturing method of decorative board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3067868B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013226680A (en) * | 2012-04-25 | 2013-11-07 | Akita Prefectural Univ | Wood-based laminate molding |
| EP2902196A1 (en) * | 2014-01-30 | 2015-08-05 | Flooring Technologies Ltd. | Method for producing a wood material and wood material comprising a carrier board and one veneer |
-
1991
- 1991-11-09 JP JP3321012A patent/JP3067868B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013226680A (en) * | 2012-04-25 | 2013-11-07 | Akita Prefectural Univ | Wood-based laminate molding |
| EP2902196A1 (en) * | 2014-01-30 | 2015-08-05 | Flooring Technologies Ltd. | Method for producing a wood material and wood material comprising a carrier board and one veneer |
| EP3100857A1 (en) * | 2014-01-30 | 2016-12-07 | Flooring Technologies Ltd. | Floor covering and method for producing a floor covering |
| EP3795357A1 (en) * | 2014-01-30 | 2021-03-24 | Välinge Innovation AB | Method for producing a wooden material and wooden material comprising a substrate and a veneer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3067868B2 (en) | 2000-07-24 |
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