JP2000326314A - Wood fiber board and its manufacture - Google Patents
Wood fiber board and its manufactureInfo
- Publication number
- JP2000326314A JP2000326314A JP11137443A JP13744399A JP2000326314A JP 2000326314 A JP2000326314 A JP 2000326314A JP 11137443 A JP11137443 A JP 11137443A JP 13744399 A JP13744399 A JP 13744399A JP 2000326314 A JP2000326314 A JP 2000326314A
- Authority
- JP
- Japan
- Prior art keywords
- wood fiber
- wood
- formaldehyde
- fiber board
- phenolic resin
- 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.)
- Withdrawn
Links
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、木質繊維板及びそ
の製造方法に関し、特に、板状、片状、繊維状、粉状な
どの木質繊維を接着剤により板状に熱圧成形して作られ
る木質繊維板であって、放出ホルムアルデヒド量がきわ
めて少なく、かつ、突板などへの汚染も少ない木質繊維
板及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood fiber board and a method for producing the wood fiber board, and more particularly, to a wood fiber board formed by hot-pressing wood fibers such as plate, flake, fiber, powder, etc. into a plate with an adhesive. The present invention relates to a wood fiber board obtained, which emits a very small amount of formaldehyde and has little contamination on a veneer or the like, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、上記のような木質繊維板の製造に
は、接着剤としてフェノール樹脂などのホルムアルデヒ
ド系接着剤が主に用いられている。中でも、フェノール
系樹脂は、尿素系樹脂やメラミン系樹脂と比較して放出
ホルムアルデヒド量が少なく、また、耐候性にも優れる
ことから、広く用いられている。ホルムアルデヒド捕捉
剤を併用するなど、ホルムアルデヒド系接着剤を用いて
製造される木質繊維板からの放出ホルムアルデヒド量を
さらに少なくしようとする種々の試みもなされている
（特開平１０−１２０７４７号公報、特公昭５１−４２
１６４号公報など参照）。2. Description of the Related Art Conventionally, formaldehyde-based adhesives such as phenolic resins have been mainly used as adhesives in the production of wood fiberboards as described above. Above all, phenolic resins are widely used because they release less formaldehyde than urea resins and melamine resins and have excellent weather resistance. Various attempts have been made to further reduce the amount of formaldehyde released from a wood fiber board manufactured using a formaldehyde-based adhesive, such as by using a formaldehyde scavenger in combination (Japanese Patent Application Laid-Open No. H10-120747, Japanese Patent Publication No. 51-42
164, etc.).
【０００３】[0003]
【発明が解決しようとする課題】フェノール系樹脂のか
なでも、レゾール型フェノール系樹脂はナトリウム存在
下でナトリウムフェノキシドとなり水溶性が付与されて
安定化し、硬化後、樹脂の分解によるホルムアルデヒド
の放出が抑制されて、放出ホルムアルデヒド量がさらに
少なくなることも知られている。しかし、木質繊維板の
製造に通常使用されるレゾール型フェノール系樹脂は高
アルカリ性のものであり、レゾール型フェノール系樹脂
を接着剤として用いて製造した木質繊維板を化粧板や構
造用材として使用する場合に、表面化粧に用いられる突
板や化粧紙を変色させたり、水に濡れて有色の抽出液が
生じるなど、非常に汚染しやすい欠点があり、使用範囲
が限られるという不都合を有している。Among the phenolic resins, the resole type phenolic resin becomes sodium phenoxide in the presence of sodium, becomes water-soluble, is stabilized, and after curing, suppresses the release of formaldehyde due to decomposition of the resin. It is also known that the amount of formaldehyde released is further reduced. However, the resol type phenolic resin usually used for the production of the wood fiberboard is highly alkaline, and the wood fiberboard manufactured using the resol type phenolic resin as an adhesive is used as a decorative board or a structural material. In this case, there is a disadvantage that the veneer or decorative paper used for surface decoration is discolored, or a colored extract is generated by getting wet with water. .
【０００４】レゾール型フェノール系樹脂でも低アルカ
リ性、あるいはほぼ中性に近いものが存在しており、そ
のような樹脂を使用すれば上記の不都合は解消できる
が、強アルカリ性のものと比較して放出ホルムアルデヒ
ド量が多くなる、安定性に不足する、樹脂の硬化時間が
長く熱プレスに長時間を要してしまい実生産性に欠け
る、などの理由から、木質繊維板製造用の接着剤として
は、通常、用いられない。用いられる場合もあるが、樹
脂の硬化不良に起因して放出ホルムアルデヒド量が増加
することが起こりかねない。[0004] Even among resole type phenolic resins, those having low alkalinity or almost neutrality exist, and the use of such a resin can solve the above-mentioned disadvantages, but the release is higher than that of strong alkalinity. As an adhesive for wood fiberboard production, for example, the amount of formaldehyde is large, the stability is insufficient, the curing time of the resin is long, the hot press requires a long time, and the actual productivity is lacking. Usually not used. Although used in some cases, the amount of formaldehyde released may increase due to poor curing of the resin.
【０００５】レゾール型フェノール系樹脂の製造工程
で、低アルカリ化と熱硬化時間の短縮の双方を満足させ
るための種々の試み、例えば、トリアセチン、ＰＰＣ、
β−プチロラクトン、炭酸アンモニウムなどを添加する
試みなどがなされているが、十分な効果が得られなかっ
たり、所期の効果が得られてもコストが高くライン適正
が悪かったりと、実生産には不向きな場合が多く、木質
繊維板製造用の接着剤としてはいずれも実用化にいたっ
ていない。Various attempts have been made to satisfy both low alkalinity and shortening of thermosetting time in the production process of resole type phenolic resin, for example, triacetin, PPC,
Attempts have been made to add β-butyrolactone, ammonium carbonate, etc., but it was not possible to obtain sufficient effects, or even if the desired effects were obtained, the cost was high and the line suitability was poor. In many cases, it is not suitable, and none of them has been put to practical use as an adhesive for producing wood fiberboard.
【０００６】本発明は、これらの事情に鑑みてなされた
ものであり、低コストで低アルカリ性レゾール型フェノ
ール系樹脂を得、それを用いて木質繊維板を熱圧成形す
ることにより、表面化粧に用いられる突板や化粧紙に対
する汚染程度を低減でき、同時に、放出ホルムアルデヒ
ド量も低減できる木質繊維板及びその製造方法を提供す
ることにある。The present invention has been made in view of the above circumstances, and provides a low-alkaline resol-type phenolic resin at low cost, and heat-presses a wood fiber board using the resin to obtain a surface cosmetic. It is an object of the present invention to provide a wood fiber board capable of reducing the degree of contamination of a veneer or decorative paper used, and at the same time, reducing the amount of released formaldehyde, and a method of manufacturing the same.
【０００７】[0007]
【課題を解決するための手段】本発明者らは上記の課題
を解決するために、鋭意検討した結果、フェノール類と
ホルムアルデヒドなどのアルデヒド類とをアルカリ性触
媒で反応させてレゾール型フェノール系樹脂接着剤を製
造するに際して、アルカリ性触媒としてアルカリ金属水
酸化物（ＡＯＨ）、好ましくは水酸化ナトリウム（Ｎａ
ＯＨ）を用い、かつ、フェノール類（Ｐ）とのモル比を
特定値としてレゾール型フェノール系樹脂接着剤を得、
該接着剤と木質繊維とをホルムアルデヒド捕捉剤と共に
攪拌混合して熱圧成形することにより、放出ホルムアル
デヒド量が少なく、短時間で熱圧成形ができ、かつ、突
板などへの汚染程度も大きく低減できる木質繊維板が得
られることを知見するにいたった。Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, phenols and aldehydes such as formaldehyde are reacted with an alkaline catalyst to form a resol-type phenolic resin adhesive. In producing the agent, an alkali metal hydroxide (AOH), preferably sodium hydroxide (Na) is used as an alkaline catalyst.
OH) and a resol-type phenolic resin adhesive is obtained with a specific value of the molar ratio with the phenol (P),
The adhesive and the wood fiber are stirred and mixed together with a formaldehyde scavenger and hot-pressed, so that the amount of released formaldehyde is small, hot-pressing can be performed in a short time, and the degree of contamination on veneers can be greatly reduced. They have found that wood fiberboard can be obtained.
【０００８】すなわち、本発明は、木質繊維と、アルカ
リ金属水酸化物（ＡＯＨ）、好ましくは水酸化ナトリウ
ム（ＮａＯＨ）、とフェノール類（Ｐ）のモル比（ＡＯ
Ｈ／Ｐ）が０．１〜０．３であるレゾール型フェノール
系樹脂と、ホルムアルデヒド捕捉剤とを用いてなる木質
繊維板、及び、木質繊維にフェノール系樹脂を接着剤と
して用いて木質繊維板を製造するに際して、フェノール
系樹脂として、アルカリ金属水酸化物（ＡＯＨ）、好ま
しくは水酸化ナトリウム（ＮａＯＨ）、とフェノール類
（Ｐ）のモル比（ＮａＯＨ／Ｐ）が０．１〜０．３であ
るレゾール型フェノール系樹脂を用い、木質繊維に該レ
ゾール型フェノール系樹脂と共にホルムアルデヒド捕捉
剤を添加混合して、熱圧成形することを特徴とする木質
繊維板の製造方法である。[0008] That is, the present invention relates to the present invention, wherein a molar ratio (AO) of wood fiber, alkali metal hydroxide (AOH), preferably sodium hydroxide (NaOH) and phenols (P) is used.
H / P) A wood fiber board using a resol type phenolic resin having a ratio of 0.1 to 0.3 and a formaldehyde scavenger, and a wood fiber board using a phenolic resin as an adhesive for wood fiber When the phenolic resin is produced, the molar ratio (NaOH / P) of alkali metal hydroxide (AOH), preferably sodium hydroxide (NaOH), and phenols (P) is 0.1 to 0.3. A resol-type phenol-based resin as described above, a formaldehyde scavenger is added to and mixed with the wood fiber together with the resol-type phenol-based resin, followed by hot-press molding.
【０００９】[0009]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明において、木質繊維板とは、細片、チップ、ある
いは粉状化した木質繊維を接着剤を用いて板状に熱圧成
形したものをいい、厚み方向に一層でのものあってもよ
く多層のものであってもよい。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
In the present invention, the wood fiber board refers to a thin piece, a chip, or a wood fiber obtained by hot pressing the powdered wood fiber using an adhesive, and may be a single layer in the thickness direction. It may be a multilayer.
【００１０】本発明でのレゾール型フェノール系樹脂と
は、ベンゼン環に水酸基が１つ以上結合したものもしく
はその誘導体であり、例えば、フェノール、レゾルシノ
ールやクレゾールであるフェノール類一種もしくは二種
以上と、ホルムアルデヒドなどのアルデヒド類とを、ア
ルカリ金属の水酸化物を触媒として反応させたものであ
り、その際に、アルカリ金属水酸化物（ＡＯＨ）とフェ
ノール類（Ｐ）のモル比（ＡＯＨ／Ｐ）が０．１〜０．
３とされる。モル比が０．１未満では、低アルカリ性の
目的では有効であるが、低温下で樹脂が結晶化してしま
い、樹脂の溶解度が低下して実用に共しなくなる。ま
た、０．３を超えるとアルカリ度が高くなり、突板など
の化粧材にアルカリ変色汚染を与える懸念がある。ま
た、水濡れなどから生じる抽出溶液が赤みを帯びてく
る。なお、上記のモル比で反応させたレゾール型フェノ
ール系樹脂接着剤のｐＨはほぼ１０程度である。The resole type phenolic resin in the present invention is a resin in which one or more hydroxyl groups are bonded to a benzene ring or a derivative thereof. For example, one or two or more phenols such as phenol, resorcinol and cresol, An aldehyde such as formaldehyde is reacted with an alkali metal hydroxide as a catalyst. At this time, the molar ratio of alkali metal hydroxide (AOH) to phenols (P) (AOH / P) Is 0.1-0.
It is set to 3. When the molar ratio is less than 0.1, it is effective for the purpose of low alkalinity, but the resin is crystallized at a low temperature, and the solubility of the resin is lowered, which is not practical. On the other hand, if it exceeds 0.3, the alkalinity increases, and there is a concern that the decorative material such as veneer may be stained with alkali discoloration. In addition, the extraction solution resulting from water wetting becomes reddish. The resole phenolic resin adhesive reacted at the above molar ratio has a pH of about 10.
【００１１】アルカリ金属水酸化物としては、水酸化ナ
トリウム（ＮａＯＨ）、水酸化カリウム（ＫＯＨ）、水
酸化リチウム（ＬｉＯＨ）などを用いることはコストの
面、反応性の面から有効である。本発明において、ホル
ムアルデヒドと反応しうるホルムアルデヒド捕捉剤と
は、ホルムアルデヒドと反応しうる物質であれば特に限
定するものではなく、尿素、メラミン、レゾルジン、過
酸化水素、酸アミド、アンモニウム塩、アミン、カテキ
ン、タンニン酸のようなものであってよいが、中でも、
尿素は、木質繊維板製造の際の熱圧成形時に、プレス温
度を所定温度（ほぼ１７０℃程度以上）としたときに、
熱圧成形に要する時間を短縮することを知見しており、
特に有効である。The use of sodium hydroxide (NaOH), potassium hydroxide (KOH), lithium hydroxide (LiOH) or the like as the alkali metal hydroxide is effective in terms of cost and reactivity. In the present invention, the formaldehyde scavenger capable of reacting with formaldehyde is not particularly limited as long as it is a substance capable of reacting with formaldehyde, and urea, melamine, resorudine, hydrogen peroxide, acid amide, ammonium salt, amine, catechin , Such as tannic acid, but
The urea is produced when the press temperature is set to a predetermined temperature (about 170 ° C. or higher) at the time of hot pressing at the time of wood fiberboard production.
We know that we can shorten the time required for hot pressing,
Especially effective.
【００１２】本発明において、木質繊維とレゾール型フ
ェノール系樹脂とは、木質繊維板の定法による製造方法
に従って、混合され攪拌され、通常の製造装置を用いて
熱圧成形される。その際に、前記ホルムアルデヒド捕捉
剤の添加は、レゾール型フェノール系樹脂を混合する前
に行ってもよく、後で行ってもよい。添加量は絶乾木質
繊維に対して１〜２０重量％、好ましくは３〜１５重量
％程度である。本発明による製造方法によれば、従来の
実生産上の熱圧時間で所要の木質繊維板を得ることがで
き、得られた木質繊維板は、放出ホルムアルデヒド量は
きわめて少なく、さらに、表面に貼り付けた化粧突板や
化粧紙に変色を生じさせることもなく、また、構造材と
して用いた場合に、水濡れから生じる赤色の抽出液など
による汚染も生じさせない。In the present invention, the wood fiber and the resol-type phenolic resin are mixed and agitated in accordance with a conventional method for manufacturing a wood fiber board, and are hot-pressed using an ordinary manufacturing apparatus. At that time, the addition of the formaldehyde scavenger may be performed before mixing the resol-type phenolic resin, or may be performed later. The amount of addition is 1 to 20% by weight, preferably about 3 to 15% by weight, based on the absolutely dry wood fiber. According to the production method according to the present invention, the required wood fiber board can be obtained in the heat and pressure time in the conventional actual production, and the obtained wood fiber board has a very small amount of formaldehyde released and is further attached to the surface. It does not cause discoloration on the decorative veneer or decorative paper attached thereto, and when used as a structural material, does not cause contamination by a red extract or the like resulting from wetting with water.
【００１３】[0013]
【実施例】以下、実施例により本発明を説明するが、本
発明がこの実施例に限定されないことはいうまでもな
い。フェノール類としてのフェノール、ホルムアルデヒ
ドとしての３７％ホルムアルデヒド水溶液、触媒として
の水酸化ナトリウムＮａＯＨ水溶液とを、表１に１〜１
１に示すような配合割合で反応容器に入れ、８５℃で２
時間反応させてレゾール型フェノール系樹脂接着剤を得
た。EXAMPLES The present invention will be described below with reference to examples, but it goes without saying that the present invention is not limited to these examples. Table 1 shows phenol as phenols, 37% formaldehyde aqueous solution as formaldehyde, and sodium hydroxide NaOH aqueous solution as a catalyst.
Put into a reaction vessel at the mixing ratio shown in
After reacting for a time, a resol-type phenolic resin adhesive was obtained.
【００１４】通常のＭＤＦの製造条件に合わせて適宜の
大きさの木材（スギ材）をチップ化して木質繊維を製造
し、接着剤添加率１５重量％となるようにして、１〜１
１の接着剤と木質繊維とを混合した。各混合物に尿素を
表１に示すような配合割合で添加し、それを熱圧プレス
に設定厚み２．７ｍｍとなるようにセットし、通常のＭ
ＤＦの加工条件に合わせて、プレス温度２００℃〜１６
０℃、プレス時間６０秒、プレス圧力２６ｋｇｆ／ｃｍ
2で熱圧成形してＭＤＦを成形した。Wood (cedar material) of an appropriate size is made into chips according to the usual MDF manufacturing conditions to produce wood fibers, and the adhesive is added at a rate of 15% by weight.
1 adhesive and wood fiber were mixed. Urea was added to each mixture at the compounding ratio shown in Table 1, and the mixture was set in a hot-press to a set thickness of 2.7 mm.
Press temperature 200 ℃ ～ 16 according to DF processing conditions
0 ° C., press time 60 seconds, press pressure 26 kgf / cm
MDF was formed by hot pressing at 2 .
【００１５】得られた１〜１１のＭＤＦを台板合板
（９．０ｍｍ）と練り合わせし、その上に、０．２５ｍ
ｍの突板を貼り塗装して化粧板（試料番号１〜１１）と
した。接着剤は変性酢酸ビニルエマルジョンを用いた。
それぞれについて、突板汚染試験、放出ホルムアルデヒ
ド量、吸水厚さ膨潤率（ＴＳ）を試験した。その結果を
表２に示す、なお、放出ホルムアルデヒド量、吸水厚さ
膨潤率は、ＪＩＳ規格試験による評価であり、吸水厚さ
膨潤率は２０℃２４時間水中浸漬法によった。また、放
出ホルムアルデヒド量のＥ０は０．５ｍｇ／Ｌ以下の場
合であり、Ｅ１は１．５ｍｇ／Ｌ以下の場合である。The obtained MDFs 1 to 11 were kneaded with a plywood board (9.0 mm), and 0.25 m
m veneer was applied and painted to make a decorative board (sample numbers 1 to 11). The adhesive used was a modified vinyl acetate emulsion.
The veneer contamination test, the amount of formaldehyde released, and the water absorption thickness swelling ratio (TS) were tested for each. The results are shown in Table 2. The amount of formaldehyde released and the swelling ratio of water absorption thickness were evaluated by JIS standard tests, and the swelling ratio of water absorption thickness was determined by immersion in water at 20 ° C. for 24 hours. Also, E0 of the amount of released formaldehyde is 0.5 mg / L or less, and E1 is 1.5 mg / L or less.
【００１６】また、突板汚染試験は、作成した化粧板
（試料番号１〜１１）を４０℃、１００％室内湿度の環
境下で一週間から１０日養生した後、４０℃の乾燥機で
試験前の含水率程度まで再び乾燥させ、その後に、突板
表面を目視により観察した。表２において、○は汚染
（変色）が観察されなかったことを示し、△はやや汚染
（変色）が観察されたことを示し、×は汚染（変色）が
ハッキリと観察されたことを示している。In the veneer contamination test, the prepared decorative board (sample Nos. 1 to 11) was cured for 1 week to 10 days in an environment of 40 ° C. and 100% room humidity, and then dried in a 40 ° C. drier. Was dried again to about the moisture content of the veneer, and then the veneer surface was visually observed. In Table 2, ○ indicates that contamination (discoloration) was not observed, Δ indicates that slight contamination (discoloration) was observed, and X indicates that contamination (discoloration) was clearly observed. I have.
【００１７】[0017]
【表１】 [Table 1]
【００１８】[0018]
【表２】 [Table 2]
【００１９】表１と表２において、試料番号１〜６のも
のは本発明に則した実施例であり、突板の汚染（変色）
は観察されず、放出ホルムアルデヒド量も吸水厚さ膨潤
率も低い値である。試料番号７〜１１のものは比較例で
あり、試料番号７と８では、ＮａＯＨ／Ｐのモル比が本
発明の範囲をはずれており、それにより突板の汚染が激
しくなっている。試料番号９では尿素の添加がなく、そ
れにより放出ホルムアルデヒド量が基準を上回ってい
る。試料番号１０と１１では、プレス温度が１６０℃と
低く、それにより、放出ホルムアルデヒド量が基準を上
回ると共に、やや突板の変色が表れている。In Tables 1 and 2, samples Nos. 1 to 6 are examples according to the present invention, and contamination of the veneer (discoloration).
Is not observed, and the released formaldehyde amount and the water absorption thickness swelling ratio are low values. Samples Nos. 7 to 11 are comparative examples. In Sample Nos. 7 and 8, the molar ratio of NaOH / P is out of the range of the present invention, whereby the veneer plate becomes heavily contaminated. In sample No. 9, there was no addition of urea, which caused the amount of formaldehyde released to exceed the standard. In Sample Nos. 10 and 11, the press temperature was as low as 160 ° C., whereby the amount of released formaldehyde exceeded the standard and the veneer was slightly discolored.
【００２０】[0020]
【発明の効果】本発明によれば、従来の実生産上の熱圧
時間で、放出ホルムアルデヒド量はきわめて少なく、さ
らに、表面に貼り付けた化粧突板や化粧紙に変色を生じ
させることもなく、また、構造材として用いた場合に、
水濡れから生じる赤色の抽出液などによる汚染も生じさ
せない木質繊維板を製造することが可能となった。According to the present invention, the amount of formaldehyde released is extremely small in the conventional hot-pressing time in actual production, and further, the decorative veneer or the decorative paper stuck on the surface is not discolored. Also, when used as a structural material,
It has become possible to manufacture a wood fiber board which does not cause contamination by a red extract or the like resulting from water wetting.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 畠山 哲 大阪府大阪市住之江区平林南２丁目10番60 号 永大産業株式会社内 Ｆターム(参考） 2B230 AA10 AA12 AA21 BA01 BA05 CB25 CC02 CC21 CC24 EA08 EB05 EB13 EB28 EB29 2B260 AA05 AA06 AA10 BA01 BA18 BA19 CB01 DA04 DB02 DB13 DC02 EA05 EB02 EB06 EB19 EB21 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Satoshi Hatakeyama 2-10-60 Hirabayashi-minami, Suminoe-ku, Osaka-shi, Osaka F-term (reference) 2B230 AA10 AA12 AA21 BA01 BA05 CB25 CC02 CC21 CC24 EA08 EB05 EB13 EB28 EB29 2B260 AA05 AA06 AA10 BA01 BA18 BA19 CB01 DA04 DB02 DB13 DC02 EA05 EB02 EB06 EB19 EB21
Claims (6)
酸化物（ＡＯＨ）とフェノール類（Ｐ）のモル比（ＡＯ
Ｈ／Ｐ）を０．１〜０．３として反応させたレゾール型
フェノール系樹脂と、ホルムアルデヒド捕捉剤とを用い
てなる木質繊維板。1. A molar ratio (AO) between a wood fiber, an alkali metal hydroxide (AOH) as a catalyst and a phenol (P).
A wood fiber board comprising a resol-type phenolic resin reacted at H / P of 0.1 to 0.3 and a formaldehyde scavenger.
ム（ＮａＯＨ）である請求項１記載の木質繊維板。2. The wood fiberboard according to claim 1, wherein the alkali metal hydroxide is sodium hydroxide (NaOH).
して用いて木質繊維板を製造するに際して、フェノール
系樹脂として、触媒であるアルカリ金属水酸化物（ＡＯ
Ｈ）とフェノール類（Ｐ）のモル比（ＡＯＨ／Ｐ）を
０．１〜０．３として反応させたレゾール型フェノール
系樹脂を用い、木質繊維に該レゾール型フェノール系樹
脂と共にホルムアルデヒド捕捉剤を添加混合して、熱圧
成形することを特徴とする木質繊維板の製造方法。3. When a wood fiberboard is manufactured by using a phenolic resin as an adhesive for wood fibers, an alkali metal hydroxide (AO) as a catalyst is used as the phenolic resin.
H) and a phenol (P) at a molar ratio (AOH / P) of 0.1 to 0.3 using a resole-type phenolic resin, and using wood fiber with a formaldehyde scavenger together with the resole-type phenolic resin. A method for producing a wood fiber board, comprising adding, mixing and hot pressing.
ム（ＮａＯＨ）である請求項３記載の木質繊維板の製造
方法。4. The method for producing a wood fiberboard according to claim 3, wherein the alkali metal hydroxide is sodium hydroxide (NaOH).
求項３記載の木質繊維板の製造方法。5. The method according to claim 3, wherein the formaldehyde scavenger is urea.
を特徴とする請求項３記載の木質繊維板の製造方法。6. The method for producing a wood fiberboard according to claim 3, wherein the temperature during pressurization is 170 ° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11137443A JP2000326314A (en) | 1999-05-18 | 1999-05-18 | Wood fiber board and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11137443A JP2000326314A (en) | 1999-05-18 | 1999-05-18 | Wood fiber board and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000326314A true JP2000326314A (en) | 2000-11-28 |
Family
ID=15198752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11137443A Withdrawn JP2000326314A (en) | 1999-05-18 | 1999-05-18 | Wood fiber board and its manufacture |
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| Country | Link |
|---|---|
| JP (1) | JP2000326314A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396461C (en) * | 2006-05-16 | 2008-06-25 | 安徽科技开发公司 | Technical method for preparing special active plasticized granule for wood-plastic composite material utilizing agricultural stalk |
| CN101954664A (en) * | 2010-06-04 | 2011-01-26 | 沈阳巴菲克实业有限公司 | Black grey carbon fiber environmentally-friendly middle-high density fiberboard and manufacturing process thereof |
| JP2012106476A (en) * | 2010-10-22 | 2012-06-07 | Panasonic Corp | Method of manufacturing wood decorative plate |
| CN102672785A (en) * | 2012-05-22 | 2012-09-19 | 文安县天华密度板有限公司 | Method for preparing multifunctional environment-friendly artificial board by fumigating vegetable fiber with ozone |
| JP2018058359A (en) * | 2016-09-30 | 2018-04-12 | 群栄化学工業株式会社 | Binder composition for woody board, woody board and manufacturing method therefor |
-
1999
- 1999-05-18 JP JP11137443A patent/JP2000326314A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396461C (en) * | 2006-05-16 | 2008-06-25 | 安徽科技开发公司 | Technical method for preparing special active plasticized granule for wood-plastic composite material utilizing agricultural stalk |
| CN101954664A (en) * | 2010-06-04 | 2011-01-26 | 沈阳巴菲克实业有限公司 | Black grey carbon fiber environmentally-friendly middle-high density fiberboard and manufacturing process thereof |
| JP2012106476A (en) * | 2010-10-22 | 2012-06-07 | Panasonic Corp | Method of manufacturing wood decorative plate |
| CN102672785A (en) * | 2012-05-22 | 2012-09-19 | 文安县天华密度板有限公司 | Method for preparing multifunctional environment-friendly artificial board by fumigating vegetable fiber with ozone |
| JP2018058359A (en) * | 2016-09-30 | 2018-04-12 | 群栄化学工業株式会社 | Binder composition for woody board, woody board and manufacturing method therefor |
| JP7017896B2 (en) | 2016-09-30 | 2022-02-09 | 群栄化学工業株式会社 | Binder composition for wood board, wood board and its manufacturing method |
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