JPS61181570A - Coating method for woody fibrous plate - Google Patents
Coating method for woody fibrous plateInfo
- Publication number
- JPS61181570A JPS61181570A JP2146185A JP2146185A JPS61181570A JP S61181570 A JPS61181570 A JP S61181570A JP 2146185 A JP2146185 A JP 2146185A JP 2146185 A JP2146185 A JP 2146185A JP S61181570 A JPS61181570 A JP S61181570A
- Authority
- JP
- Japan
- Prior art keywords
- bleaching
- coated
- fibrous plate
- wood
- hydrogen peroxide
- 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
- Dry Formation Of Fiberboard And The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は表面に変色のない塗膜を形成する木質繊維板の
塗装方法に関するものでおる。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for coating wood fiberboard that forms a coating film on the surface without discoloration.
（従来例の技術とその問題点）
木質繊維板、特に軽量で断熱性に富んだ軟質繊維板は湿
式抄造によって形成されることが多く、この場合に抄造
ＪＳ ９ト中の白水を繰返し使用して連続生産すると、
白水中に溶出したりづニジ濃度が高まって白水中に抽出
されたリグニジやへ三七１０−ス等の木材成分が木質繊
維板の表裏面に付着しているので、その表面に水性塗料
で線状あるいは粒状等の塗装を施すと塗料乾燥時に上記
リグニジが温水に対して溶出し易いことから塗料中の水
分に溶出して塗料を黄変させて化粧性を低下させる原因
となっていた。(Conventional technology and its problems) Wood fiberboards, especially soft fiberboards that are lightweight and have excellent insulation properties, are often formed by wet papermaking, and in this case, white water in papermaking JS 9 is repeatedly used. When continuously produced,
Wood components such as ligniji and hesan710-su extracted into the white water increase in concentration and adhere to the front and back surfaces of the wood fiberboard. When a linear or granular coating is applied, the above-mentioned lignidge is easily eluted by hot water when the paint dries, so it is eluted into the moisture in the paint, causing yellowing of the paint and deterioration of its cosmetic properties.
このような塗膜の黄変をなくするために、塗装前に木質
繊維板の表面を切削することにより繊維板表面に付着し
たリジ＝ン成分を取り除けばよいが、切削設備や収Ｓ設
備等が別に必要となって設備費が高くなるという問題点
がある。In order to eliminate such yellowing of the paint film, the surface of the wood fiberboard can be removed by cutting the surface of the wood fiberboard before painting to remove the lysine component attached to the surface of the fiberboard, but cutting equipment, S collection equipment, etc. There is a problem that a separate equipment is required, which increases the equipment cost.
一方、木材やパルプを漂白する事は周知であるが、従来
技術は木材やパルプそのものの色を脱色して白変を高め
る目的で行うため１００℃以下の温度で長時間漂白する
のが一般であり、この方法を原料繊維に採用した場合、
非常に長い漂白処理工程のち再度乾燥して塗装すること
も考えられるが、木質繊維板は単板等の木材板と異なり
漂白液中で膨潤して強度低下してしまい、取扱い難くな
ると共に再乾燥のエネル手−が必要となってコスト高に
なるものであった。On the other hand, it is well known that wood and pulp are bleached, but conventional techniques generally involve bleaching at a temperature of 100°C or less for a long period of time to bleach the wood or pulp itself and increase whitening. Yes, if this method is used for raw fiber,
It is conceivable to dry again and paint after a very long bleaching process, but unlike wood boards such as veneer, wood fiberboard swells in the bleaching solution and loses its strength, making it difficult to handle and re-drying. This required a large number of energy sources, resulting in high costs.
（発明の目的）
本発明はこのような問題点に鑑みてなされたもので、湿
式抄造法によって形成した木質繊維板中の木材成分、特
に繊維板表面へ付着するりタニシ中の着色成分を分解し
、変色のない塗膜を安定して形成できる木質繊維板の塗
装方法を提供するものである。(Purpose of the Invention) The present invention has been made in view of the above-mentioned problems, and aims to decompose the wood components in the wood fiberboard formed by the wet papermaking method, especially the colored components in the snails that adhere to the fiberboard surface. The present invention also provides a method for painting wood fiberboard that can stably form a coating film without discoloration.
（発明の構成）
上記目的を達成するために本発明の木質繊維板の塗装方
法は、木質繊維板の表面を漂白処理したのち、該表面に
水性塗料で塗装するものである。(Structure of the Invention) In order to achieve the above object, the method for painting a wood fiberboard of the present invention involves bleaching the surface of the wood fiberboard and then painting the surface with a water-based paint.
木質繊維板表面に塗布する漂白剤としては１例えば過酸
化水素漂白剤にアルカリ剤として水酸化ナトリウム、ケ
イ酸ソータ等を添加してｐＨを８〜１１、好ましくは９
〜１１に調整した液剤、あるいは過酸化ソータ、次亜塩
素酸ソータ、二酸化塩素等が使用される。The bleaching agent to be applied to the surface of the wood fiberboard is 1. For example, add sodium hydroxide, silicate sorter, etc. as an alkaline agent to hydrogen peroxide bleach to adjust the pH to 8 to 11, preferably 9.
A liquid agent adjusted to 11 to 11, a peroxide sorter, a hypochlorous acid sorter, chlorine dioxide, etc. are used.
なお、漂白剤に反応性の早い過酸化水素を用いる場合に
は保存中における過酸化水素の分解を防ぐために、過酸
化水素漂白剤に水酸化マグネシウム等を添加しておくこ
とが望ましい。In addition, when hydrogen peroxide, which is highly reactive, is used as a bleaching agent, it is desirable to add magnesium hydroxide or the like to the hydrogen peroxide bleaching agent in order to prevent decomposition of hydrogen peroxide during storage.
このようにｐＨ調整された過酸化水素漂白剤を湿式抄造
によって得られた木質繊維板の表面に塗布したのち、直
ちに熱０−ルあるいは熱盤により漂白液の塗布面を熱処
理する。この場合、熱０−ル等は８００〜５００℃に加
熱したものを使用して塗布面の加熱処理を行い、その湿
度により過酸化水素漂白剤の分解速度を速め、木質繊維
板の表層部のりタニシ中の着色成分を短時間で分解して
良好な漂白効果を発現させると共に繊維板表面の木材繊
維の毛羽立ちを抑えて平滑化するものである。After the hydrogen peroxide bleaching agent whose pH has been adjusted in this manner is applied to the surface of the wood fiberboard obtained by wet papermaking, the surface to which the bleaching solution has been applied is immediately heat-treated using a heated oven or a heating plate. In this case, heat treatment is performed on the coated surface using a heat treatment solution heated to 800 to 500 degrees Celsius, and the humidity accelerates the decomposition rate of the hydrogen peroxide bleach, allowing the surface layer of the wood fiberboard to adhere to the surface layer. It decomposes the coloring components in the snail in a short time to achieve a good bleaching effect, and it also suppresses the fuzz of the wood fibers on the surface of the fiberboard and smooths it.
こうして漂白処理された木質繊維板表面は、次いで水性
塗料で塗布され、しかるのち乾燥して塗膜を形成するも
のである。The surface of the wood fiberboard thus bleached is then coated with a water-based paint, which is then dried to form a paint film.
なお、前記熱０−ルや熱盤による木質繊維板の表面処理
を行うことによって、効果的な漂白と同時に繊維の毛羽
立ちをなくして色斑がなく、かつ塗料の密着がよい良好
な塗面が形成でき、しかも、繊維板表面を硬質化して表
面硬度を向上させることが出来る。In addition, by performing the surface treatment of the wood fiberboard using the heat oven or hot plate, it is possible to effectively bleach the fibers and at the same time eliminate the fuzz of the fibers, thereby creating a good painted surface with no color spots and good adhesion of paint. Moreover, it is possible to harden the fiberboard surface and improve the surface hardness.
次に本発明の具体的な実施例を示す。Next, specific examples of the present invention will be shown.
（実施例の説明）
湿式抄造によって形成された木質繊維板の表面に６０９
／ｄ の割合で、ｐＨが９．６に調整された次に示す
組成の漂白剤を塗布した。(Explanation of Examples) 609 on the surface of wood fiberboard formed by wet papermaking
A bleaching agent having the following composition and having a pH adjusted to 9.6 was applied at a ratio of /d.
漂白剤の組成
濃度３５ｇ６過醗化水素 １００重量部’ ５０４
ＮａＯＨ８＃
＃ ４０％ＮａｚＳｉＯｓ ３ ’水
８９４１
次いで４００℃に加熱された熱Ｏ−ルによって漂白剤塗
布面を熱処理し、過酸化水素を分解して木質繊維板表面
のリジ＝シ等の木材成分を漂白した。Bleach composition concentration 35g6 Hydrogen peroxide 100 parts by weight'504
NaOH8# #40%NazSiOs 3' water
8941 Next, the bleach-applied surface was heat-treated with a hot oil heated to 400°C to decompose hydrogen peroxide and bleach wood components such as resin on the surface of the wood fiberboard.
しかるのち、酢とエマルジョシに炭酸カルシウムを混入
してなる白色塗料をロール又はスプレー等の公知の手段
により木質繊維板表面に粒状塗装した。Thereafter, a white paint made by mixing vinegar and emulsion with calcium carbonate was applied in granular form to the surface of the wood fiberboard by a known method such as a roll or spray.
なお、塗装は木質繊維板の表面全面に均一に行うか又は
粒状の部分塗装のいずれでもよく、化粧板の用途に応じ
て選択すればよい。The coating may be applied uniformly over the entire surface of the wood fiberboard or may be applied partially in granular form, and the selection may be made depending on the intended use of the decorative board.
（発明の効果）
以上のように本発明の木質繊維板の塗装方法によれば、
木質繊維板の表面を漂白処理したのちに ′核表面に
水性塗料で塗装するものであるから、木材成分、特にリ
ジ＝シの着色成分を分解しているためにりＩｊニジによ
る黄褐色化等の変色をなくした安定した塗膜を得ること
ができる。(Effects of the Invention) As described above, according to the method for coating wood fiberboard of the present invention,
After bleaching the surface of the wood fiberboard, the surface of the wood fiberboard is painted with water-based paint, which decomposes the wood components, especially the coloring components of the resin, which may cause yellowing or browning due to staining. It is possible to obtain a stable coating film that eliminates discoloration.
又、木質繊維板に塗布した漂白剤表面を加熱０−ル等で
熱圧処理することによって、漂白剤の分解を短時間で行
わせて良好な漂白が可能になると共に繊維の毛羽立ちを
なくして美麗な塗面を形成できるものである。In addition, by subjecting the surface of the bleaching agent applied to the wood fiberboard to heat and pressure treatment using a heated 0-l, etc., the bleaching agent can be decomposed in a short period of time, making it possible to achieve good bleaching and also eliminate the fuzziness of the fibers. It can form a beautiful painted surface.
さらに、木質繊維板の表層部分のみを漂白処理するので
繊維板に強度低下をきたすことがなく、しかも熱圧処理
を併用して漂白を行うと繊維板の表面硬度を向上させる
ことが出来るという効果を有する。Furthermore, since only the surface layer of the wood fiberboard is bleached, there is no decrease in the strength of the fiberboard, and when bleaching is performed in conjunction with heat-pressure treatment, the surface hardness of the fiberboard can be improved. has.
Claims (2)
水性塗料で塗装することを特徴とする木質繊維板の塗装
方法。(1) A method for painting a wood fiberboard, which comprises bleaching the surface of the wood fiberboard and then painting the surface with a water-based paint.
面を熱圧処理して漂白することを特徴とする特許請求の
範囲第１項記載の木質繊維板の塗装方法。(2) The method for painting a wood fiberboard according to claim 1, which comprises applying a bleaching solution to the surface of the wood fiberboard and then bleaching the surface by heat-pressure treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146185A JPS61181570A (en) | 1985-02-06 | 1985-02-06 | Coating method for woody fibrous plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146185A JPS61181570A (en) | 1985-02-06 | 1985-02-06 | Coating method for woody fibrous plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61181570A true JPS61181570A (en) | 1986-08-14 |
| JPH037432B2 JPH037432B2 (en) | 1991-02-01 |
Family
ID=12055616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2146185A Granted JPS61181570A (en) | 1985-02-06 | 1985-02-06 | Coating method for woody fibrous plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61181570A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02194879A (en) * | 1989-01-24 | 1990-08-01 | Sumitomo Ringyo Kk | Coating of wood plate |
| JPH0674328U (en) * | 1992-02-26 | 1994-10-21 | 段谷産業株式会社 | Wood fiberboard |
| JP2000326312A (en) * | 1999-05-24 | 2000-11-28 | Aoi Kokuban Seisakusho:Kk | Cork board and treating method therefor |
| CN110124968A (en) * | 2019-06-06 | 2019-08-16 | 广州厚邦木业制造有限公司 | The solid wooden compound floor painting technology that aqueous UV is painted entirely |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5960028B2 (en) * | 2012-10-31 | 2016-08-02 | 東京エレクトロン株式会社 | Heat treatment equipment |
-
1985
- 1985-02-06 JP JP2146185A patent/JPS61181570A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02194879A (en) * | 1989-01-24 | 1990-08-01 | Sumitomo Ringyo Kk | Coating of wood plate |
| JPH0674328U (en) * | 1992-02-26 | 1994-10-21 | 段谷産業株式会社 | Wood fiberboard |
| JP2000326312A (en) * | 1999-05-24 | 2000-11-28 | Aoi Kokuban Seisakusho:Kk | Cork board and treating method therefor |
| CN110124968A (en) * | 2019-06-06 | 2019-08-16 | 广州厚邦木业制造有限公司 | The solid wooden compound floor painting technology that aqueous UV is painted entirely |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH037432B2 (en) | 1991-02-01 |
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