JP2011224950A - Method of manufacturing board - Google Patents
Method of manufacturing board Download PDFInfo
- Publication number
- JP2011224950A JP2011224950A JP2010110635A JP2010110635A JP2011224950A JP 2011224950 A JP2011224950 A JP 2011224950A JP 2010110635 A JP2010110635 A JP 2010110635A JP 2010110635 A JP2010110635 A JP 2010110635A JP 2011224950 A JP2011224950 A JP 2011224950A
- Authority
- JP
- Japan
- Prior art keywords
- mat
- kenaf
- board
- temperature
- water
- 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)
Abstract
Description
本発明はケナフを原料としたボードの製造方法に関する。 The present invention relates to a board manufacturing method using kenaf as a raw material.
木材の小片を合成樹脂接着剤で固めたパーティクルボード、ファイバーボード等のボードは広く工業化されている。
しかし合成樹脂接着剤の使用は、ホルムアルデヒド等の化学物質の放出、自然界で分解されない、石油資源に依存する等の問題があった。また木材の使用について、二酸化炭素固定化による地球温暖化の防止、森林の保護のため、非木材の新たな植物原料の使用が望まれている。Particle boards, fiber boards, etc., in which small pieces of wood are hardened with a synthetic resin adhesive, are widely industrialized.
However, the use of synthetic resin adhesives has problems such as the release of chemical substances such as formaldehyde, not being decomposed in nature, and depending on petroleum resources. In addition, regarding the use of wood, the use of new non-wood plant materials is desired in order to prevent global warming by fixing carbon dioxide and protect forests.
本発明者の一部は、先に、ケナフを原料とし合成樹脂接着剤を使用しないボードの製造技術を開発した（特許文献１）。これによると、ケナフには加熱することで自己接着する成分が含まれており、接着剤を添加しなくても加熱加圧成形することによりボードを作ることができる。また、ケナフを前もって高温高圧水蒸気処理することによって、より優れた強度性能のボードを作ることができる。
しかしながら、特許文献１の方法によると、強度性能の優れたボードを得るためには、ケナフをあらかじめ高温高圧水蒸気処理する必要があり、製造工程が複雑である。また、耐圧容器、高温高圧水蒸気発生装置等の設備費もかかる。また、高温高圧水蒸気を発生させるためのエネルギーコストがかかる。A part of the present inventors has previously developed a board manufacturing technique using kenaf as a raw material and not using a synthetic resin adhesive (Patent Document 1). According to this, a component that self-adheres by heating is contained in kenaf, and a board can be made by heating and pressing without adding an adhesive. In addition, a board with better strength performance can be made by subjecting kenaf to high-temperature and high-pressure steam treatment in advance.
However, according to the method of Patent Document 1, in order to obtain a board with excellent strength performance, it is necessary to subject the kenaf to high-temperature and high-pressure steam treatment in advance, and the manufacturing process is complicated. In addition, equipment costs such as a pressure vessel and a high-temperature / high-pressure steam generator are also required. Moreover, the energy cost for generating high temperature / high pressure steam is required.
本発明は、ケナフを原料とし合成樹脂接着剤を使用しないボードの製造において、生産効率が良くコストの低いボードの製造方法を提供することを目的とする。 An object of the present invention is to provide a method for producing a board with high production efficiency and low cost in the production of a board using kenaf as a raw material and not using a synthetic resin adhesive.
本発明者らは、これまで耐圧容器などの設備で行われた高温高圧水蒸気処理の工程を簡略化するために鋭意研究を行ってきた。そして、本来ボードを成形するための設備であるプレス機で高温高圧水蒸気処理も一緒にできないものかと考え、ケナフで作ったマットの表面を水で湿らせてからプレス機で加熱加圧した所、マット表面の水分がプレス機の熱で水蒸気となり、それがマットの内部を通り全体が水蒸気処理されることを見出した。更に、マット表面に添加する水の量とプレス機の加熱加圧時間を調節することにより、耐圧容器中で高温高圧水蒸気処理する時と同等の処理条件を作り出せることを明らかにし、課題を解決するに至った。 The inventors of the present invention have conducted intensive research in order to simplify the process of high-temperature and high-pressure steam treatment that has been performed in facilities such as pressure vessels. And we thought that high-temperature and high-pressure steam treatment could not be done together with the press machine which is originally a facility for molding the board, where the surface of the mat made of kenaf was moistened with water and then heated and pressurized with the press machine, It has been found that the moisture on the surface of the mat is converted into water vapor by the heat of the press machine, which passes through the inside of the mat and is entirely treated with water vapor. Furthermore, by adjusting the amount of water added to the mat surface and the heating and pressurizing time of the press machine, it is clarified that processing conditions equivalent to those of high-temperature and high-pressure steam treatment in a pressure vessel can be created, and the problems are solved. It came to.
すなわち本発明は、ケナフを原料とし合成樹脂接着剤を使用しないボードの製造方法であって、ケナフの小片をマット化し、そのマットの表面には水が添加されており、次いでそのマットをプレス機で１８０〜２６０℃の温度で加熱加圧することにより、高温高圧水蒸気処理とボード成型とを一つの工程で行うことを特徴とするボードの製造方法である。
以下、本発明を詳細に説明する。That is, the present invention relates to a board manufacturing method using kenaf as a raw material and not using a synthetic resin adhesive. A piece of kenaf is matted, and water is added to the surface of the mat. The board manufacturing method is characterized in that high-temperature and high-pressure steam treatment and board molding are performed in one step by heating and pressing at a temperature of 180 to 260 ° C.
Hereinafter, the present invention will be described in detail.
本発明において原料として使用されるケナフは、茎部、根、葉等あらゆる部位が対象となる。茎部を使用する場合、木質部（芯部）のみ又は木質部と靭皮部とを混合して使用するのが好ましい。靭皮部のみの使用は、靭皮部には自己接着する成分の含有量が少ないので好ましくない。 The kenaf used as a raw material in the present invention covers all parts such as stems, roots and leaves. When using a stem part, it is preferable to use only a wood part (core part) or a mixture of a wood part and a bast part. The use of only the bast portion is not preferable because the content of components that self-adhere to the bast portion is small.
使用するケナフの形態は特に限定されないが、チップ状、フレーク状、繊維状、パルプ状、粉末状等従来のパーティクルボード、ファイバーボードで使用される一般的な形状が好ましい。
パルプを使用する場合、特に常温でかつ無薬品で作られたパルプが好ましい。かかるパルプは、ケナフに含まれる自己接着成分が流出せずそのまま温存している。また、ケナフ芯部が細長い繊維状になっており、三次元形成など複雑な形状のボードを作るうえで有効である。また、パルプを使用する場合、特に発芽後４ヶ月以内に収穫したケナフから作ったパルプが好ましい。発芽後４ヶ月以内のケナフは柔軟性に富み複雑な形状のボードを作るうえでより適している。The form of kenaf to be used is not particularly limited, but general shapes used in conventional particle boards and fiber boards such as chips, flakes, fibers, pulps, and powders are preferable.
When pulp is used, pulp made at room temperature and without chemicals is particularly preferable. In such pulp, the self-adhesive component contained in kenaf does not flow out and is preserved as it is. In addition, the kenaf core is in the form of a long and narrow fiber, which is effective for making a board having a complicated shape such as three-dimensional formation. Moreover, when using a pulp, the pulp made from the kenaf harvested within four months after germination is preferable. Kenaf within 4 months after germination is more flexible and more suitable for making boards with complex shapes.
本発明のボードの製造において合成樹脂接着剤は使用されない。ここで言う合成樹脂接着剤とは、従来ボードで使用されてきた尿素樹脂、メラミン樹脂、フェノール樹脂をはじめ化学合成して得られる接着剤である。 No synthetic resin adhesive is used in the manufacture of the board of the present invention. The synthetic resin adhesive referred to here is an adhesive obtained by chemical synthesis including urea resin, melamine resin, and phenol resin that have been conventionally used in boards.
本発明において、ケナフ以外の植物原料を混合して使用しても良い。ケナフ以外の植物原料として、木材、樹皮、非木材の各種バイオマスがあげられるが、リグニン、タンニン、糖類など植物から単離して得た物質もこれに含まれる。ケナフ以外の植物原料の使用量は、乾燥重量でケナフよりも少ないことが好ましい。 In the present invention, plant raw materials other than kenaf may be mixed and used. Plant raw materials other than kenaf include wood, bark, and non-wood biomass, including substances obtained by isolation from plants such as lignin, tannin, and sugars. The amount of plant material other than kenaf is preferably less than kenaf in terms of dry weight.
本発明の製造方法においては、合成樹脂接着剤を使用する従来のパーティクルボード又は乾式ファイバーボードと同じ製造設備を使用することができる。また、接着剤の添加が不要で水の添加が必要な以外は従来のボードと同様の製造工程が適用できる。すなわち、原料のケナフの小片をホーミングマシン等を使用してコール板（当て板）の上に散布し、目的のボードの大きさに応じた面積と厚さに堆積する（この堆積物をマットと言う）。次いで、このマットをコール板（当て板）ごとプレス機まで運搬しそこで加熱加圧形成してボードにするものである。 In the production method of the present invention, the same production equipment as conventional particle board or dry fiber board using a synthetic resin adhesive can be used. Moreover, the manufacturing process similar to the conventional board can be applied except that the addition of an adhesive is unnecessary and the addition of water is necessary. That is, a small piece of raw kenaf is spread on a call board (caulking board) using a homing machine or the like, and deposited in an area and thickness according to the size of the target board (the deposit is mat and To tell). Next, the mat is transported to the press machine together with the call plate (pad plate), where it is heated and pressed to form a board.
本発明の製造方法においては、前記マットの表面に水が添加されていなければならない。水の添加方法は、マット下面の場合は、マット形成する前に、あらかじめコール板に水を散布するのが好ましい。また、マット上面の場合は、マット形成後に、直接表面に水を散布するのが好ましい。
水の添加量は、マットの表層部２０％の平均含水率が１２％以上になる量であり、好ましくは２０％以上、より好ましくは４０％になる量である。尚、ここで言うマットの表層部２０％とは、マット両面の表層側の乾燥重量でマット全体の２０重量％を占める部分のことである。In the production method of the present invention, water must be added to the surface of the mat. As for the method of adding water, in the case of the lower surface of the mat, it is preferable to spray water on the call board in advance before forming the mat. In the case of the mat upper surface, it is preferable to spray water directly on the surface after the mat is formed.
The amount of water added is such that the average moisture content of the surface layer portion 20% of the mat is 12% or more, preferably 20% or more, more preferably 40%. Here, the surface layer portion 20% of the mat is a portion that occupies 20% by weight of the entire mat with the dry weight on the surface side of both surfaces of the mat.
一方、マットの芯層側の含水率はできるだけ低い方が良く、マットの芯層部８０％の平均含水率は８％以下が好ましく、６％以下がより好ましい。
水蒸気は、最初にマットの表層部で発生し、それがマット芯層部を通過し、最後にプレス機の側部から出る。芯層部に水分が残っていると、表層部から送られて来る水蒸気の温度を下げてしまい、処理条件を悪くする。尚、ここで言うマットの芯層部８０％とは、マットの芯層部の乾燥重量でマット全体の８０重量％を占める部分のことである。On the other hand, the moisture content on the core layer side of the mat should be as low as possible, and the average moisture content of the core layer portion 80% of the mat is preferably 8% or less, more preferably 6% or less.
The water vapor is first generated in the surface layer of the mat, which passes through the mat core layer and finally exits the side of the press. If moisture remains in the core layer portion, the temperature of water vapor sent from the surface layer portion is lowered, and the processing conditions are deteriorated. Incidentally, the 80% of the core layer portion of the mat mentioned here is a portion that occupies 80% by weight of the entire mat with the dry weight of the core layer portion of the mat.
次いでマットはプレス機で加熱加圧される。この工程で、まず水蒸気が発生し高温高圧水蒸気処理が施される。水蒸気が出終わると今度は熱硬化反応が始まりボードが成形される。プレス機の温度は１８０℃〜２６０℃、好ましくは２００度〜２３０℃で実施される。１８０℃未満の温度では、高温高圧水蒸気処理条件が弱くまた、熱硬化反応も不十分となるので好ましくない。また、２６０℃を超える温度では、ケナフが劣化するので好ましくない
加熱加圧時間は、温度や水の添加量によっても異なるが、通常目的とするボードの厚さに比例し、厚さ１ｍｍに対して４０〜１５０秒が好ましく、６０〜９０秒がより好ましい。
プレス機の種類は、多段ホットプレス、一段平板ホットプレス等パーティクルボード、乾式繊維板の製造で一般的なものが使用できる。Next, the mat is heated and pressed with a press. In this process, water vapor is first generated and high-temperature high-pressure water vapor treatment is performed. When the water vapor is finished, the thermosetting reaction starts and the board is formed. The temperature of the pressing machine is 180 ° C to 260 ° C, preferably 200 ° C to 230 ° C. A temperature lower than 180 ° C. is not preferable because the high-temperature and high-pressure steam treatment conditions are weak and the thermosetting reaction is insufficient. At temperatures exceeding 260 ° C, kenaf deteriorates, which is not preferable. The heating and pressing time varies depending on the temperature and the amount of water added, but is usually proportional to the thickness of the target board and is 1mm thick. 40 to 150 seconds are preferable, and 60 to 90 seconds are more preferable.
As the type of the press machine, those generally used in the production of particle boards and dry fiber boards such as multi-stage hot presses and single-stage flat plate hot presses can be used.
以上の方法により、耐圧容器を使用した高温高圧水蒸気処理の工程を経ることなく、それと同等の強度性能のケナフを原料とした合成樹脂接着剤を使用しないボードを作ることができる。 By the above method, the board which does not use the synthetic resin adhesive made from kenaf having the same strength performance as the raw material can be made without going through the high-temperature and high-pressure steam treatment process using the pressure vessel.
尚、本発明において、プレス機での加熱加圧時間を短縮するために、触媒として酸を使用しても良い。酸の種類としては、シュウ酸、硫酸、硫酸アンモニウム、塩化アンモニウム等、あらゆる酸又は酸性塩が対象となる。酸の使用量は、ケナフに対して２重量％以下が好ましく、０．５重量％以下がより好ましい。酸の使用により、プレス機での加熱加圧時間が、２０〜５０％短縮できる。 In the present invention, an acid may be used as a catalyst in order to shorten the heating and pressing time in the press. As the type of acid, any acid or acidic salt such as oxalic acid, sulfuric acid, ammonium sulfate, ammonium chloride, etc. is targeted. The amount of the acid used is preferably 2% by weight or less, more preferably 0.5% by weight or less based on kenaf. By using an acid, the heating and pressing time in the press can be shortened by 20 to 50%.
また、本発明において、ホウ砂又はホウ酸を添加して不燃ボードを作ることができる。ホウ砂、ホウ酸の添加は、プレス機での加熱加圧の前に原料のケナフに添加しても構わないし、ボード成型後に含浸させても構わない。 Moreover, in this invention, a nonflammable board can be made by adding borax or boric acid. Borax and boric acid may be added to the raw material kenaf before heating and pressurizing with a press, or may be impregnated after board molding.
本発明によれば次のような効果がある。
（１）本発明の製法によれば、高温高圧水蒸気処理とボード成型を一つの工程で行うことができるので、製造工程を大幅に簡略化できる。
（２）本発明の製法によれば、耐圧容器、水蒸気発生装置など高温高圧水蒸気処理を行うための専用設備が必要ない。
（３）本発明の製法によれば、プレス機の熱で水蒸気を発生するので、水蒸気発生のためのエネルギーコストが低い。
（４）本発明の製法によれば、ケナフを原料として使用し二酸化炭素の固定化に有利で地球温暖化防止に貢献する。
（５）本発明の製造方法によれば、合成樹脂接着剤を使用しないので、その製品はそのままで、また焼却しても、有害物質を発生せず安全である。
（６）本発明の製造方法によれば、石油由来である合成樹脂接着剤を使用しないので、地球温暖化防止に貢献する。The present invention has the following effects.
(1) According to the production method of the present invention, the high-temperature and high-pressure steam treatment and the board molding can be performed in one process, so that the production process can be greatly simplified.
(2) According to the production method of the present invention, dedicated equipment for performing high-temperature and high-pressure steam treatment such as a pressure vessel and a steam generator is not necessary.
(3) According to the production method of the present invention, since steam is generated by the heat of the press machine, the energy cost for generating steam is low.
(4) According to the production method of the present invention, kenaf is used as a raw material, which is advantageous for fixing carbon dioxide and contributing to the prevention of global warming.
(5) According to the production method of the present invention, since the synthetic resin adhesive is not used, the product is safe as it is without generating harmful substances even if incinerated.
(6) According to the production method of the present invention, no synthetic resin adhesive derived from petroleum is used, which contributes to prevention of global warming.
次に実施例により本発明を更に詳しく説明するが、本発明はこれによって限定されるものではない。
実施例及び比較例では、４０ｃｍ角のコール板の上に２２ｃｍ角のフォーミングボックスを置き、原料のケナフを手撒きし手押ししてマットにした後、５０ｃｍ角の成型可能な電熱ヒーター付油圧プレス機を使用し、所定の厚さのスペーサーを用い、温度２２０℃、圧力２８ｋｇ／ｃｍ２で所定の時間加熱加圧した。
また、完成したボードの強度性能を調べるために曲げ強さを、ＪＩＳ Ａ ５９０８．５．６に準拠し、５０×２００ｍｍのサイズにカットした３本の試験片の測定値の平均値で求めた。EXAMPLES Next, although an Example demonstrates this invention in more detail, this invention is not limited by this.
In the examples and comparative examples, a 22 cm square forming box is placed on a 40 cm square call plate, the raw material kenaf is hand-rolled and pressed into a mat, and then a 50 cm square hydraulic press machine with an electric heater that can be molded is used. Was used, and heated and pressurized for a predetermined time at a temperature of 220 ° C. and a pressure of 28 kg / cm 2 using a spacer having a predetermined thickness.
Further, in order to examine the strength performance of the completed board, the bending strength was determined by the average value of the measured values of three test pieces cut to a size of 50 × 200 mm in accordance with JIS A 5908.55.6. .
（特許文献１に準拠した製造方法）
ケナフ茎部から靭皮部を除去した後の直径０．５〜３．０ｃｍの棒状のケナフ木質部を約２０ｃｍの長さに切断し、これを耐圧容器に入れ、内温が１００℃になるまで予熱した。
次いで、この耐圧容器に連結した高温高圧水蒸気発生装置から２５０℃の高温高圧水蒸気を送り込み、耐圧容器の内温を１８０℃にし３分間維持した。その後、耐圧容器の内温が１００℃以下になるまで冷却し、ケナフ木質部を取出した。
次に、このケナフ木質部を、Ｐａｌｌｍａｎナイフリングフレーカーを使用し刃出し０．６ｍｍで加工してフレーク状の小片にし、それを乾燥機で含水率５％になるまで乾燥した。
このようにして得たケナフ木質部の小片３４０ｇを使用してマットにし、それをプレス機で１０ｍｍのスペーサーを使用して１５分間加熱加圧して、ケナフを原料とした合成樹脂接着剤を使用しないボードを得た。このボードの曲げ強さは２８Ｎ／ｍｍ２であった。(Manufacturing method based on Patent Document 1)
After removing the bast from the kenaf stalk, cut the rod-shaped kenaf wood part having a diameter of 0.5 to 3.0 cm into a length of about 20 cm, put it in a pressure vessel, and until the internal temperature reaches 100 ° C. Preheated.
Next, high-temperature and high-pressure steam at 250 ° C. was fed from a high-temperature and high-pressure steam generator connected to the pressure vessel, and the internal temperature of the pressure vessel was maintained at 180 ° C. for 3 minutes. Then, it cooled until the internal temperature of a pressure vessel became 100 degrees C or less, and the kenaf wood part was taken out.
Next, this kenaf wood part was processed into a flake-like piece by using a Pallman knife ring flaker with a blade size of 0.6 mm, and dried with a dryer until the water content became 5%.
A board that does not use a synthetic resin adhesive made of kenaf as a raw material by using 340 g of the small piece of kenaf wood part obtained in this way to make a mat, which is heated and pressed for 15 minutes using a 10 mm spacer with a press. Got. The bending strength of this board was 28 N / mm 2 .
（本発明の製造方法）
比較例１で使用したものと同様のケナフ木質部を、水蒸気処理はしないで、Ｐａｌｌｍａｎナイフリングフレーカーを使用し比較例１と同じ方法でフレーク状の小片にし、それを乾燥機で含水率５％になるまで乾燥した。
次に、コール板にフォーミングボックスを置きその上からスプレーで水１４ｇをコール板上に噴霧し、次いでケナフの小片３４０ｇを手撤き手押ししてマットにし、次にそのマットにスプレーで水を１４ｇ噴霧した。このマットは、計算上、表層側２０％の平均含水率が５０％となる。
このマットを１０ｍｍのスペーサーを使用してプレス機で１７分加熱加圧した。加熱加圧開始２０秒後にプレス機側面から蒸気が出はじめ、それが激しくなるが、２分後にほとんど出なくなった。この間にケナフは水蒸気処理された。次いで、残りの１５分間にケナフは熱硬化反応して、ボードに成形された。
このケナフを原料とし合成樹脂接着剤を使用しないボードの曲げ強さは、２７Ｎ／ｍｍ２であった。(Production method of the present invention)
A kenaf wood part similar to that used in Comparative Example 1 was not steamed, but was made into flake-like pieces in the same manner as in Comparative Example 1 using a Pallman knife ring flaker, and the moisture content was 5% with a dryer. Dried until
Next, place a forming box on the coal board and spray 14g of water onto the coal board by spraying. Then, 340g of a small piece of kenaf is removed by hand to make a mat, and then 14g of water is sprayed on the mat. Sprayed. In this mat, the average moisture content on the surface layer side 20% is 50% in calculation.
This mat was heated and pressed with a press using a 10 mm spacer for 17 minutes. Vapor started to come out from the side of the press machine 20 seconds after the start of heating and pressurization, and it became intense, but almost disappeared after 2 minutes. During this time, kenaf was steam treated. The kenaf was then thermoset during the remaining 15 minutes and formed into a board.
The bending strength of the board using this kenaf as a raw material and not using the synthetic resin adhesive was 27 N / mm 2 .
（特許文献１に準拠した製造方法）
発芽後３ヶ月経って収穫したケナフの茎部を原料として常温かつ無触媒で製造したパルプを、耐熱容器に入れ比較例１と同じ方法で高温高圧水蒸気処理を行った。次にこのパルプを、乾燥機で含水率５％になるまで乾燥した。
このパルプ１６０ｇを使用してマットにし、プレス機で４ｍｍのスペーサーを使用して６分間加熱加圧して、ケナフを原料とした合成樹脂接着剤を使用しないボードを得た。このボードの曲げ強さは３２Ｎ／ｍｍ２であった。(Manufacturing method based on Patent Document 1)
Pulp produced at room temperature and without catalyst using kenaf stems harvested 3 months after germination as a raw material was placed in a heat-resistant container and subjected to high-temperature and high-pressure steam treatment in the same manner as in Comparative Example 1. The pulp was then dried with a dryer until the moisture content was 5%.
160 g of this pulp was used as a mat, and heated and pressed for 6 minutes using a 4 mm spacer with a press machine to obtain a board not using a synthetic resin adhesive made of kenaf. The bending strength of this board was 32 N / mm 2 .
（本発明の製造方法）
比較例２で使用したものと同様のケナフパルプを、乾燥機で含水率５％になるまで乾燥した。
次に、コール板にフォーミングボックスを置き、その上からスプレーで水３．８ｇをコール板上に噴霧し、次いでケナフパルプ１６０ｇを手撒き手押ししてマットにし、次にそのマットにスプレーで水を３．８ｇ噴霧した。このマットは、計算上、表層側２０％の平均含水率が３０％となる。
このマットをプレス機で４ｍｍのスペーサーを使用して７分間加熱加圧した。加熱加圧開始後間もなくプレス機側面から蒸気が出はじめるが１分後にはほとんど出なくなった。この間にケナフパルプは水蒸気処理された。次いで、残りの６分間にケナフパルプは、熱硬化反応してボードに成形された。
このケナフを原料とし合成樹脂接着剤を使用しないボードの曲げ強さは、３４Ｎ／ｍｍ２であった。(Production method of the present invention)
The same kenaf pulp used in Comparative Example 2 was dried with a dryer until the water content was 5%.
Next, a forming box is placed on the coal board, and 3.8 g of water is sprayed onto the coal board from above by spraying, then 160 g of kenaf pulp is hand-rolled into a mat, and then water is sprayed on the mat. Sprayed 8g. This mat has an average water content of 30% on the surface side 20% in calculation.
This mat was heated and pressed for 7 minutes using a 4 mm spacer with a press. Vapor started to come out from the side of the press soon after the start of heating and pressurization, but almost disappeared after 1 minute. During this time, the kenaf pulp was steamed. The kenaf pulp was then thermoset to form a board during the remaining 6 minutes.
The bending strength of the board using this kenaf as a raw material and not using the synthetic resin adhesive was 34 N / mm 2 .
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010110635A JP5014463B2 (en) | 2010-04-19 | 2010-04-19 | Board manufacturing method |
| MYPI2011001737A MY154639A (en) | 2010-04-19 | 2011-04-19 | Method of making board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010110635A JP5014463B2 (en) | 2010-04-19 | 2010-04-19 | Board manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2011224950A true JP2011224950A (en) | 2011-11-10 |
| JP5014463B2 JP5014463B2 (en) | 2012-08-29 |
Family
ID=45040915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010110635A Expired - Fee Related JP5014463B2 (en) | 2010-04-19 | 2010-04-19 | Board manufacturing method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5014463B2 (en) |
| MY (1) | MY154639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171890A (en) * | 2015-08-13 | 2015-12-23 | 湖南万华生态板业有限公司 | Shaving board manufacturing method |
| WO2016056207A1 (en) * | 2014-10-08 | 2016-04-14 | パナソニックＩｐマネジメント株式会社 | Plant-based board production method and plant-based board |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552544A (en) * | 2015-01-04 | 2015-04-29 | 唐忠荣 | Inserted injection pipe type steam injecting hot-pressing method and special device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998048990A1 (en) * | 1997-04-30 | 1998-11-05 | Tsuyoshi Kono | Boards produced with the use of grass plant lignin and process for producing the same |
| JP3486637B2 (en) * | 1994-06-02 | 2004-01-13 | 独立行政法人森林総合研究所 | Binder-free wood material production method from waste paper |
-
2010
- 2010-04-19 JP JP2010110635A patent/JP5014463B2/en not_active Expired - Fee Related
-
2011
- 2011-04-19 MY MYPI2011001737A patent/MY154639A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3486637B2 (en) * | 1994-06-02 | 2004-01-13 | 独立行政法人森林総合研究所 | Binder-free wood material production method from waste paper |
| WO1998048990A1 (en) * | 1997-04-30 | 1998-11-05 | Tsuyoshi Kono | Boards produced with the use of grass plant lignin and process for producing the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016056207A1 (en) * | 2014-10-08 | 2016-04-14 | パナソニックＩｐマネジメント株式会社 | Plant-based board production method and plant-based board |
| CN105171890A (en) * | 2015-08-13 | 2015-12-23 | 湖南万华生态板业有限公司 | Shaving board manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5014463B2 (en) | 2012-08-29 |
| MY154639A (en) | 2015-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6832411B2 (en) | A wood-based material board in which the release of volatile organic compounds (VOC) is suppressed, and a method for manufacturing the wood-based material board. | |
| US5728269A (en) | Board produced from malvaceous bast plant and process for producing the same | |
| EP0492016B1 (en) | Thermosetting resin material and composite products from lignocellulose | |
| CN102794801B (en) | Flame-retardant anti-corrosive fiber bamboo base material and preparation technology thereof | |
| CN100588518C (en) | Method for producing recombination module wood from secondary processing wood | |
| JP2009298132A (en) | Improved lumber and method of manufacturing the same | |
| CN106049150B (en) | A kind of manufacture method of fiberboard | |
| JP6752926B2 (en) | OSB (Oriented Strand Board) wood-based panel with improved properties and its manufacturing method | |
| JPH0622803B2 (en) | Method for producing raw material such as particle board and method for producing particle board | |
| CN102490240A (en) | Fiberboard manufacturing method | |
| JP5014463B2 (en) | Board manufacturing method | |
| JPH02220807A (en) | Solidified body of cellulose fiber and manufacture thereof | |
| CN105538473B (en) | A kind of manufacture method of the bamboo recombined material with outdoor weathe resistance | |
| JP2001001318A (en) | Method for manufacturing lignocellulose molding from lignocellulose material | |
| WO1998048990A1 (en) | Boards produced with the use of grass plant lignin and process for producing the same | |
| WO1998017727A1 (en) | Treatment of lignocellulosic material | |
| CN107379162A (en) | A kind of recombined bamboo plate production technology | |
| CN110545971A (en) | Method of manufacturing OSB wood-based panels with reduced emission of Volatile Organic Compounds (VOC) | |
| RU2381244C2 (en) | Moulding material, method of obtaining thereof and method of obtaining plate materials on its basis | |
| CN103372902A (en) | Method for manufacturing high-density, middle-density and low-density boards by bamboo | |
| CN108582399A (en) | A kind of production method of recombining bamboo for outdoor bamboo floor | |
| CN101774196A (en) | Process method for manufacturing hard wood by high-frequency warming and solidifying | |
| JP3034956B2 (en) | Board using mallow bast fiber plant and method for producing the same | |
| RU2637550C2 (en) | Method for production of composite materials | |
| JPH06126715A (en) | Thermosetting resin material and composite product/ produced from lignocellulose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110727 |
|
| A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20110908 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111020 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111125 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111212 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120514 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120605 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150615 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |