JP2016107532A - Wood preservative and method for preservation treatment of wood - Google Patents
Wood preservative and method for preservation treatment of wood Download PDFInfo
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本発明は、例えば、木造建築物において、基礎（土台）に固定される横木や横木に立設される柱として使用する木材を、長期間に亘って保護する（例えば、防虫、防腐、防蟻、防カビ等を行う）ために使用する木材保存剤及びそれを用いた木材保存処理方法に関する。 The present invention protects, for example, in a wooden building, a timber fixed to a foundation (base) or a timber used as a pillar erected on the pedestal over a long period of time (for example, insect protection, antiseptic, ant protection) The present invention relates to a wood preservative used to prevent mold and the like and a wood preservation treatment method using the same.
木造建築物の場合、基礎に固定される横木や横木に立設される柱として使用する木材、外壁材や内壁材として使用する木材に対して、防虫、防腐、及び防カビ等の保護を目的として、種々の合成化学物質を木材保存剤として用いた処理が行われている。しかし、合成化学物質を木材保存剤として使用した場合、人畜に対する安全性や環境に及ぼす影響が指摘され、近年では天然物由来の木材保存剤の使用が試みられている。例えば、特許文献１には、有効成分が植物（具体的にはカワ種に属する植物）に由来する木材保存剤が開示されている。ここで、カワ種に属する植物は、ニューギニアからポリネシア諸島で生育しており、その地下茎は嗜好物として利用されていることから、人畜に対する安全性は高く、環境に悪影響を及ぼすことも少ないとされている。そして、この植物の葉を、必要に応じて裁断、乾燥、粉砕等の処理を施した後、適当な抽出溶媒を用いて抽出し、必要に応じて濾過した後、濃縮することにより得られる抽出物を木材保存剤として使用している。 In the case of wooden buildings, the purpose is to protect insects, antiseptics, fungi, etc. against the timbers that are fixed to the foundation and the timbers that are used as pillars that are erected on the timbers, and the timbers that are used as outer and inner wall materials. As a result, treatments using various synthetic chemical substances as wood preservatives have been carried out. However, when synthetic chemical substances are used as wood preservatives, effects on the safety of human livestock and the environment have been pointed out, and in recent years, the use of wood preservatives derived from natural products has been attempted. For example, Patent Document 1 discloses a wood preservative in which an active ingredient is derived from a plant (specifically, a plant belonging to the river species). Here, the plant belonging to the river species grows from New Guinea to the Polynesian Islands, and its rhizome is used as a favorite, so it is said that it is highly safe for human livestock and has little adverse effect on the environment. ing. Then, the leaves of this plant are subjected to treatments such as cutting, drying, and pulverization as necessary, followed by extraction using an appropriate extraction solvent, filtration as necessary, and extraction obtained by concentration. Used as a wood preservative.
しかしながら、特許文献１の木材保存剤は、原料となる植物を国外から調達しなければならず、安定して調達することが困難であると共に、調達コストが高くなるという問題がある。また、植物から抽出物を得るには、種々の有機溶媒と専用の抽出装置を使用しなければならず製造コストが高くなると共に、抽出物を取り出した後の残留物の処理を行わねばならないという問題も生じる。 However, the wood preservative of Patent Document 1 has a problem that a plant as a raw material has to be procured from outside the country, and it is difficult to procure it stably and the procurement cost becomes high. Moreover, in order to obtain an extract from a plant, it is necessary to use various organic solvents and a dedicated extraction device, which increases the manufacturing cost, and the residue after the extract is taken out must be processed. Problems also arise.
本発明はかかる事情に鑑みてなされたもので、入手や製造が容易で、人畜に対する安全性と環境に及ぼす影響が少なく、しかも、耐久性を備える（長期間に亘って安定した木材保護作用を有する）木材保存剤及びそれを用いた木材保存処理方法を提供することを目的とする。 The present invention has been made in view of such circumstances, is easy to obtain and manufacture, has little impact on safety and the environment for human livestock, and has durability (a stable wood protection effect over a long period of time). It is an object of the present invention to provide a wood preservative and a wood preservation treatment method using the same.
前記目的に沿う第１の発明に係る木材保存剤は、ホウ酸塩と酸化第二鉄とを含む水溶液中に、多孔質炭素粉末及びゼオライト粉末のいずれか一方と酢酸鉄を加えたものである。 The wood preservative according to the first invention that meets the above-mentioned object is obtained by adding either porous carbon powder or zeolite powder and iron acetate in an aqueous solution containing borate and ferric oxide. .
第１の発明に係る木材保存剤において、前記ホウ酸塩として八ホウ酸ナトリウム四水和物を１５〜２５質量％、前記酸化第二鉄としてベンガラを０．５〜５質量％、前記多孔質炭素粉末として竹炭粉末を０．５〜３質量％、前記酢酸鉄として竹炭製造時に生成する竹酢液と鉄との反応で得られる竹酢反応液を酢酸鉄換算で０．２〜２質量％それぞれ含有し、残部が水であることが好ましい。
八ホウ酸ナトリウム四水和物、ベンガラ、竹炭粉末、及び竹酢反応液の原料となる竹酢液と鉄は、いずれも従来から利用されている物質で、入手が容易であると共に、人畜に対する安全性、環境に及ぼす影響が低いことが確認されている。
In the wood preservative according to the first invention, 15 to 25% by mass of sodium octaborate tetrahydrate as the borate, 0.5 to 5% by mass of Bengala as the ferric oxide, the porous 0.5-3 mass% bamboo charcoal powder as carbon powder, 0.2-2 mass% of bamboo vinegar reaction liquid obtained by reaction of bamboo vinegar liquid produced at the time of bamboo charcoal production with iron acetate as iron acetate in terms of iron acetate It is preferable to contain each, and the remainder is water.
Sodium octaborate tetrahydrate, bengara, bamboo charcoal powder, and bamboo vinegar and iron, which are the raw materials for bamboo vinegar reaction liquid, are all conventionally used substances and are easy to obtain and It has been confirmed that the impact on safety and the environment is low.
前記目的に沿う第２の発明に係る木材保存処理方法は、第１の発明に係る木材保存剤を、木材に浸透させた後に該木材を乾燥させる。 In the wood preservation processing method according to the second invention that meets the above object, the wood preservative according to the first invention is infiltrated into the wood and then dried.
第２の発明に係る木材保存処理方法において、前記木材保存剤の前記木材への浸透は、該木材を乾燥させ密閉容器に収容して該密閉容器内を減圧し、該密閉容器内の減圧状態を保持したまま前記木材保存剤を注入し、該木材を該木材保存剤中に浸漬することにより行うことが好ましい。
これにより、木材に木材保存剤を容易に浸透させることができる。
In the wood preservation processing method according to the second invention, the penetration of the wood preservative into the wood is performed by drying the wood, storing the wood in a sealed container, depressurizing the sealed container, and reducing the pressure in the sealed container. It is preferable to carry out by injecting the wood preservative while retaining the slag and immersing the wood in the wood preservative.
Thereby, a wood preservative can be easily penetrated into wood.
第２の発明に係る木材保存処理方法において、前記木材を前記木材保存剤中に浸漬した後、該木材保存剤を加圧することが好ましい。
これにより、木材全体に亘って木材保存剤を短時間で多量に浸透させることができる。
In the wood preservation method according to the second invention, it is preferable to pressurize the wood preservative after the wood is immersed in the wood preservative.
Thereby, a large amount of wood preservative can be permeated in a short time over the whole wood.
第１の発明に係る木材保存剤においては、木材保存有効成分であるホウ酸塩及び酸化第二鉄、多孔質炭素粉末、ゼオライト粉末、酢酸鉄は、いずれも入手や製造が容易で、人畜に対する安全性と環境に及ぼす影響が低いことが確認されているので、これらの物質を用いた木材保存剤は、製造が容易で、人畜に対する安全性が高く、環境に及ぼす影響を低くすることができる。
そして、多孔質炭素粉末又はゼオライト粉末は、調湿作用を有するので木材中の湿度を一定に保ち、ホウ酸塩が水分を介して木材から流出するのを防止できる。これにより、ホウ酸塩の防虫作用を長期間に亘って持続させることができる。また、酢酸鉄は酸化第二鉄を木材に定着させる作用を有するので、酸化第二鉄の有する防腐作用を長期間に亘って持続させることができる。これにより、木材を長期間に亘って保護することが可能になる。
In the wood preservative according to the first invention, borate and ferric oxide, porous carbon powder, zeolite powder, and iron acetate, which are wood preservation active ingredients, are easy to obtain and manufacture, and Since it has been confirmed that the impact on safety and the environment is low, wood preservatives using these substances are easy to manufacture, are highly safe for human livestock, and can reduce the impact on the environment. .
And since porous carbon powder or zeolite powder has a humidity control effect, it can keep humidity in wood constant and can prevent borate from flowing out of wood through moisture. Thereby, the insecticidal action of borate can be maintained over a long period of time. Moreover, since iron acetate has the effect | action which fixes ferric oxide to wood, the antiseptic action which ferric oxide has can be maintained over a long period of time. Thereby, it becomes possible to protect wood over a long period of time.
第２の発明に係る木材保存処理方法においては、ホウ酸塩と酸化第二鉄とを含む水溶液中に、多孔質炭素粉末及びゼオライト粉末のいずれか一方と酢酸鉄を加えて作製した木材保存剤を、例えば、木材に塗布することにより、又は木材保存剤中に木材を浸漬することにより、木材保存剤を木材に容易に浸透させることができる。
そして、木材保存剤を木材に浸透させた場合、一般に木材の表層側ほど高濃度の木材保存剤が存在することになるので、木材の保護（例えば、防虫、防腐、防カビ等）を効果的に行うことができる。
In the wood preservation method according to the second invention, a wood preservative prepared by adding either porous carbon powder or zeolite powder and iron acetate to an aqueous solution containing borate and ferric oxide. The wood preservative can be easily infiltrated into the wood, for example, by applying to the wood or by dipping the wood in a wood preservative.
When wood preservatives are infiltrated into wood, there is generally a higher concentration of wood preservatives on the surface of the wood, so it is effective in protecting wood (eg, insect protection, antiseptic, antifungal, etc.) Can be done.
続いて、本発明を具体化した実施の形態につき説明し、本発明の理解に供する。
本発明の第１の実施の形態に係る木材保存剤は、ホウ酸塩として八ホウ酸ナトリウム四水和物と酸化第二鉄としてベンガラとを含む水溶液中に、更に多孔質炭素粉末として竹炭粉末並びに酢酸鉄として竹炭製造時に生成する竹酢液と鉄との反応で得られる竹酢反応液を加えたものである。ここで、木材保存剤は、八ホウ酸ナトリウム四水和物を１５〜２５質量％、ベンガラを０．５〜５質量％、竹炭粉末を０．５〜３質量％、竹酢反応液を酢酸鉄換算で０．２〜２質量％それぞれ含有し、残部は水である。このように、木材保存剤が水溶液であるため、木材保存剤を木材に塗布することにより、また、木材保存剤中に木材を浸漬することにより、木材保存剤を木材に容易に浸透させることができる。以下詳細に説明する。
Subsequently, an embodiment of the present invention will be described to provide an understanding of the present invention.
The wood preservative according to the first embodiment of the present invention includes a bamboo charcoal powder as a porous carbon powder in an aqueous solution containing sodium octaborate tetrahydrate as borate and bengara as ferric oxide. Moreover, the bamboo vinegar reaction liquid obtained by reaction with the bamboo vinegar liquid produced | generated at the time of bamboo charcoal manufacture as iron acetate and iron is added. Here, the wood preservative is 15 to 25% by mass of sodium octaborate tetrahydrate, 0.5 to 5% by mass of bengara, 0.5 to 3% by mass of bamboo charcoal powder, and acetic acid from the bamboo vinegar reaction solution. It contains 0.2 to 2% by mass in terms of iron, and the balance is water. As described above, since the wood preservative is an aqueous solution, the wood preservative can be easily penetrated into the wood by applying the wood preservative to the wood and immersing the wood in the wood preservative. it can. This will be described in detail below.
八ホウ酸ナトリウム四水和物は、例えば、害虫（シロアリ、木喰虫等）から木材を保護する防虫作用を発現させるために使用する。ここで、八ホウ酸ナトリウム四水和物の含有率の上限を２５質量％としたのは、室温の水に対して八ホウ酸ナトリウム四水和物を２５質量％を超えて溶解させることができないためである。また、八ホウ酸ナトリウム四水和物の含有率の下限である１５質量％は、シロアリに対する防虫作用の実験から、防虫作用が顕著となる八ホウ酸ナトリウム四水和物の最小含有率が１５質量％であったことから決定した。なお、八ホウ酸ナトリウム四水和物は、防虫作用に加えて、防カビ作用及び防腐作用を有する。 Sodium octaborate tetrahydrate is used, for example, to develop an insecticidal action that protects wood from pests (termites, wood worms, etc.). Here, the upper limit of the content of sodium octaborate tetrahydrate was set to 25% by mass because sodium octaborate tetrahydrate was dissolved in excess of 25% by mass in water at room temperature. This is because it cannot be done. Moreover, 15 mass% which is the minimum of the content rate of sodium octaborate tetrahydrate has a minimum content rate of 15 sodium octaborate tetrahydrate that makes the insecticidal action remarkable from experiments on insecticidal action against termites. It was determined from the fact that it was mass%. Sodium octaborate tetrahydrate has an antifungal action and an antiseptic action in addition to an insecticidal action.
ベンガラは、木材の防腐を図るために使用する。ベンガラの含有率の下限である０．５質量％は、木材に対する防腐作用の実験から、防腐作用が顕著となるベンガラの最小含有率が０．５質量％であったことから決定した。また、ベンガラの含有率の増加に伴って防腐作用も向上するが、５質量％を超えてベンガラを含有させても、防腐作用の顕著な向上は見られないこと、木材の色調が大きく変化することから、ベンガラの含有率の上限値を５質量％とした。ここで、ベンガラは水に溶解せず分散して水中に存在するため、木材に木材保存剤を浸透させた場合、ベンガラは木材中の気孔や木材を構成している繊維の間隙に進入することになる。このため、ベンガラは微粉であることが必要で、平均粒径は１μｍ以下であることが好ましい。なお、ベンガラは、防腐作用に加えて、防水作用び防虫作用を有する。 Bengala is used to preserve wood. The lower limit of 0.5% by mass of the content of Bengala was determined from the experiment on the antiseptic effect on wood because the minimum content of Bengala with which the antiseptic effect becomes remarkable was 0.5% by mass. Further, the antiseptic action is improved with an increase in the content of Bengala, but even if the Bengala content exceeds 5% by mass, no significant improvement in the antiseptic action is observed, and the color tone of the wood greatly changes. Therefore, the upper limit value of the content of Bengala was set to 5% by mass. Here, bengara does not dissolve in water but disperses and exists in water, so when wood preservative is infiltrated into wood, bengara must enter pores in the wood and gaps between the fibers that make up the wood. become. For this reason, bengara needs to be fine powder, and it is preferable that an average particle diameter is 1 micrometer or less. Bengala has a waterproof and insect-proofing action in addition to the antiseptic action.
竹炭粉末は、木材の調湿を図るために使用する。これによって、木材中の湿度上昇が防止され、水溶性の八ホウ酸ナトリウム四水和物が水分を介して木材から流出するのを防止でき、八ホウ酸ナトリウム四水和物の木材に対する防虫作用を長期間に亘って持続させることができる。そして、木材を低湿度化することは、害虫やカビに対して生息環境を悪化させることとなるので、八ホウ酸ナトリウム四水和物の防虫作用及びベンガラの防腐作用を補強することができる。更に、多孔質のため、建材等に含まれる有害化学物質を吸着することもできる。 Bamboo charcoal powder is used to control the humidity of wood. This prevents an increase in humidity in the wood, prevents water-soluble sodium octaborate tetrahydrate from flowing out of the wood through moisture, and the insect-repellent action of sodium octaborate tetrahydrate on wood Can be maintained for a long period of time. And lowering the humidity of wood worsens the habitat environment against pests and fungi, so that the insecticidal action of sodium octaborate tetrahydrate and the antiseptic action of Bengala can be reinforced. Furthermore, since it is porous, harmful chemical substances contained in building materials and the like can be adsorbed.
ここで、調湿効果を高めるには、竹炭粉末の含有率を高めることが必要であるが、竹炭粉末の含有率が高くなると、木材保存剤の有効成分である八ホウ酸ナトリウム四水和物の含有率が低下することになる。このため、一定量の八ホウ酸ナトリウム四水和物と竹炭粉末との混合物中の湿度上昇を抑制するのに必要な竹炭粉末の必要量を実験から求め、その結果に基づいて、木材保存剤中の八ホウ酸ナトリウム四水和物の含有率に対して必要な竹炭粉末含有率を求めた。その結果、竹炭粉末の含有率の下限値は０．５質量％となった。また、３質量％を超えて竹炭粉末を含有させても、湿度上昇の抑制効果に顕著な向上は見られないこと、木材の色調が大きく変化することから、竹炭粉末の含有率の上限値を３質量％とした。
なお、竹炭粉末は、８００〜１０００℃で焼成した竹炭を粉砕したものが好ましい。また、竹炭粉末は木材中の気孔や木材を構成している繊維の間隙に進入することになるので、竹炭粉末の平均粒径は１μｍ以下であることが好ましい。
Here, to increase the humidity control effect, it is necessary to increase the content of bamboo charcoal powder, but when the content of bamboo charcoal powder increases, sodium octaborate tetrahydrate which is an active ingredient of wood preservatives The content rate of will decrease. For this reason, the necessary amount of bamboo charcoal powder required to suppress the increase in humidity in a mixture of a certain amount of sodium octaborate tetrahydrate and bamboo charcoal powder is obtained from experiments, and based on the results, a wood preservative is obtained. The required bamboo charcoal powder content was determined with respect to the content of sodium octaborate tetrahydrate. As a result, the lower limit of the content of bamboo charcoal powder was 0.5% by mass. Moreover, even if bamboo charcoal powder is contained in excess of 3% by mass, no significant improvement is seen in the effect of suppressing the increase in humidity, and the color of the wood changes greatly. The content was 3% by mass.
Bamboo charcoal powder is preferably obtained by pulverizing bamboo charcoal fired at 800 to 1000 ° C. Moreover, since the bamboo charcoal powder enters the pores in the wood and the gaps between the fibers constituting the wood, the average particle diameter of the bamboo charcoal powder is preferably 1 μm or less.
酢酸鉄は、ベンガラを木材の繊維に定着させるために使用する。これによって、ベンガラを長期間に亘って木材中に存在させることができ、ベンガラの木材に対する防腐作用を長期間に亘って持続させることができる。なお、木材保存剤を構成するベンガラの含有率から、ベンガラを木材に定着させるのに必要な酢酸鉄の含有率を求めると、０．２〜２質量％となった。
ここで、竹酢反応液には、竹酢液に含まれる酢酸（竹酢酸ともいう）と鉄との反応により生成した酢酸鉄（竹酢酸鉄ともいう）に加えて、竹酢液に含まれていたポリフェノール類やアルコール類等の成分も存在する。このため、竹酢反応液を加えると、ポリフェノール類やアルコール類等の成分が木材に作用して、八ホウ酸ナトリウム四水和物による防虫作用及びベンガラによる防腐作用を更に補強することができる。
Iron acetate is used to anchor bengara to wood fibers. As a result, the bengara can be present in the wood over a long period of time, and the antiseptic action of the bengara against the wood can be maintained over a long period of time. In addition, when the content rate of iron acetate required for fixing a bengara to wood was calculated | required from the content rate of the bengara which comprises a wood preservative, it was set to 0.2-2 mass%.
Here, the bamboo vinegar reaction liquid contains the bamboo vinegar liquid in addition to the iron acetate (also called bamboo iron acetate) produced by the reaction of acetic acid (also called bamboo acetic acid) contained in the bamboo vinegar liquid and iron. There are also components such as polyphenols and alcohols. For this reason, when a bamboo vinegar reaction liquid is added, components, such as polyphenols and alcohol, act on wood, and can further reinforce the insecticidal action by sodium octaborate tetrahydrate and the antiseptic action by Bengala.
木材保存剤は、ホウ酸塩を１５〜２５質量％含有しているので、木材中にホウ酸塩が浸透することにより、木材は難燃性を有するようになる。そして、ホウ酸塩として八ホウ酸ナトリウム四水和物を使用する場合、ホウ酸塩と共に結晶水も木材中に含まれることになり、木材の難燃性を更に向上させることができる。ここで、木材保存剤を構成するベンガラ、竹炭粉末、及び竹酢反応液は、木材に浸透すると木材を着色することになるが、１５〜２５質量％の八ホウ酸ナトリウム四水和物に加えて、ベンガラを０．５質量％程度、竹炭粉末を０．５質量％程度、竹酢反応液を酢酸鉄換算で０．２質量％程度それぞれ含有する木材保存剤では、木材の着色を抑えることができる。従って、１５〜２５質量％の八ホウ酸ナトリウム四水和物と、０．５質量％程度のベンガラと、０．５質量％程度の竹炭粉末と、０．２質量％程度の竹酢反応液とを有する木材保存剤を浸透させた木材では、使用範囲の拡大を図ることが可能になる。 Since the wood preservative contains 15 to 25% by mass of borate, the wood has flame retardancy when the borate penetrates into the wood. And when using sodium octaborate tetrahydrate as a borate, crystal | crystallization water will also be contained in a wood with a borate, and the flame retardance of wood can be improved further. Here, the bengara, bamboo charcoal powder, and bamboo vinegar reaction liquid constituting the wood preservative color the wood when it permeates into the wood, but in addition to 15 to 25% by mass of sodium octaborate tetrahydrate. With wood preservatives containing about 0.5% by weight of Bengala, about 0.5% by weight of bamboo charcoal powder, and about 0.2% by weight of bamboo vinegar reaction liquid in terms of iron acetate, the coloration of the wood should be suppressed. Can do. Therefore, 15 to 25% by mass of sodium octaborate tetrahydrate, about 0.5% by mass of bengara, about 0.5% by mass of bamboo charcoal powder, and about 0.2% by mass of bamboo vinegar reaction liquid. In the case of wood infiltrated with a wood preservative having the above, the use range can be expanded.
本発明の第２の実施の形態に係る木材保存処理方法は、第１の実施の形態に係る木材保存剤を、木材に浸透させた後にこの木材を乾燥させることにより行う。
先ず、保存しようとする木材（所定の目的に応じて製材された木材、例えば、杉材）を乾燥させる。木材を乾燥させることにより、木材中には表面に連通する気孔が形成されると共に、木材を構成している繊維同士の間に間隙が形成され、木材保存剤が浸透可能な状態となる。
木材保存剤を木材に浸透させる場合、乾燥させた木材を密閉容器に収容し、密閉容器内を減圧する。次いで、密閉容器内の減圧状態を保持したまま、密閉容器内に木材保存剤を注入することにより木材を木材保存剤に浸漬する。木材中の気孔や繊維の間隙に存在していた空気が除去されているため、木材保存剤は木材中に容易に浸透することができ、木材中の気孔や繊維の間隙を充填する。ここで、木材を木材保存剤に浸漬した後、密閉容器内の木材保存剤を木材に加圧注入（例えば、１１〜１３気圧）して一定時間保持する。密閉容器内の木材保存剤を加圧注入することで、木材全体に木材保存剤を短時間で所定量浸透させることができ、木材の難燃性を高めることが可能になる。
The wood preserving method according to the second embodiment of the present invention is performed by allowing the wood preservative according to the first embodiment to penetrate into the wood and then drying the wood.
First, the wood to be preserved (wood made according to a predetermined purpose, for example, cedar) is dried. By drying the wood, pores communicating with the surface are formed in the wood, and a gap is formed between the fibers constituting the wood, so that the wood preservative can penetrate.
When the wood preservative is infiltrated into the wood, the dried wood is placed in a sealed container and the inside of the sealed container is depressurized. Next, the wood is immersed in the wood preservative by injecting the wood preservative into the airtight container while maintaining the reduced pressure state in the airtight container. Since the air present in the pores and fiber gaps in the wood is removed, the wood preservative can easily penetrate into the wood and fill the pores and fiber gaps in the wood. Here, after immersing the wood in the wood preservative, the wood preservative in the sealed container is pressure-injected into the wood (for example, 11 to 13 atmospheres) and held for a certain period of time. By pressure-injecting the wood preservative in the sealed container, a predetermined amount of the wood preservative can be permeated into the entire wood in a short time, and the flame retardancy of the wood can be increased.
木材を木材保存剤に一定時間浸漬した後、密閉容器内から木材保存剤を排出させ、次いで、木材を取り出し乾燥させる。なお、必要に応じて、木材保存剤の木材への浸漬及び乾燥の一連の処理を複数回繰り返す。これにより、木材中の気孔や繊維の間隙に木材保存剤を確実に、かつ多量に浸透させることができる。木材保存剤を木材に浸透させた場合、一般に木材の表層側ほど高濃度の木材保存剤が存在することになるので、木材の保護（例えば、防虫、防腐、防カビ等）を効果的に行うことができる。
更に、木材保存剤を多量に浸透させた場合、含有する八ホウ酸ナトリウム四水和物により木材を難燃性にすることができるので、ベンガラ、竹炭粉末、及び竹酢反応液の含有量を調整して木材の色調変化を抑制することにより、建物の外装材や内装材として有効に使用することが可能になる。
After dipping the wood in the wood preservative for a certain time, the wood preservative is discharged from the sealed container, and then the wood is taken out and dried. If necessary, a series of treatments of dipping the wood preservative in wood and drying is repeated a plurality of times. As a result, the wood preservative can be surely and infiltrated in a large amount into pores and fiber gaps in the wood. When wood preservatives are infiltrated into wood, there is generally a higher concentration of wood preservatives on the surface layer of the wood, so wood protection (for example, insect protection, antiseptic, mold prevention, etc.) is effectively performed. be able to.
Furthermore, when wood preservatives are infiltrated in large quantities, the wood can be made flame retardant with the contained sodium octaborate tetrahydrate, so the content of Bengala, bamboo charcoal powder, and bamboo vinegar reaction liquid can be reduced. By adjusting and suppressing the color change of the wood, it can be effectively used as an exterior material or interior material of a building.
以上、本発明を、実施の形態を参照して説明してきたが、本発明は何ら上記した実施の形態に記載した構成に限定されるものではなく、特許請求の範囲に記載されている事項の範囲内で考えられるその他の実施の形態や変形例も含むものである。
例えば、木材保存剤を木材に浸透させる場合、減圧下に保持した木材を木材保存剤に浸漬し、次いで木材保存剤を加圧したが、木材の材質や厚さに応じて、減圧下に保持した木材を木材保存剤に浸漬することにより、あるいは常圧下で木材を木材保存剤に浸漬することにより行うこともできる。そして、木材保存剤の木材への浸漬及び乾燥の一連の処理を複数回繰り返すこともできる。
更に、木材に、木材保存剤を塗布することにより浸透させることも可能で、木材保存剤の木材への塗布及び乾燥の一連の処理を複数回繰り返すこともできる。
As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the matters described in the scope of claims. Other embodiments and modifications conceivable within the scope are also included.
For example, when a wood preservative is infiltrated into wood, the wood kept under reduced pressure is immersed in the wood preservative and then the wood preservative is pressurized, but it is kept under reduced pressure depending on the material and thickness of the wood. It is also possible to immerse the timber in a wood preservative or by immersing the wood in a wood preservative under normal pressure. And a series of processes of immersion and drying of wood preservatives in wood can be repeated a plurality of times.
Further, it is possible to infiltrate the wood by applying a wood preservative, and a series of processes of applying the wood preservative to the wood and drying can be repeated a plurality of times.
ホウ酸塩として八ホウ酸ナトリウム四水和物を使用したが、八ホウ酸ナトリウム四水和物の水溶液は、オルトホウ酸（Ｈ３ＢＯ３）4モルとホウ砂（Ｎａ２Ｂ４Ｏ７）1モルの混合物を水に溶解させて得られる水溶液と成分的に同等であるため、八ホウ酸ナトリウム四水和物の代わりに、それぞれ所定量のオルトホウ酸とホウ砂を水に溶解させてもよい。
また、ベンガラの代わりに、赤錆を微粉化したものを、竹炭粉末の代わりに、高温焼成で製造した炭を微粉化したもの又はゼオライト粉末を、それぞれ使用することができる。
更に、竹酢反応液の代わりに、酢酸水溶液と鉄との反応液を使用することができる。
Sodium octaborate tetrahydrate was used as the borate. The aqueous solution of sodium octaborate tetrahydrate was composed of 4 moles of orthoboric acid (H 3 BO 3 ) and borax (Na 2 B 4 O 7 ). Since it is equivalent in composition to an aqueous solution obtained by dissolving 1 mol of the mixture in water, instead of sodium octaborate tetrahydrate, a predetermined amount of orthoboric acid and borax can be dissolved in water, respectively. Good.
Further, instead of Bengala, those obtained by pulverizing red rust can be used, and those obtained by pulverizing charcoal produced by high-temperature firing or zeolite powder can be used instead of bamboo charcoal powder.
Furthermore, instead of the bamboo vinegar reaction solution, a reaction solution of an acetic acid aqueous solution and iron can be used.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182285A (en) * | 2016-07-20 | 2016-12-07 | 潘昌洪 | A kind of bamboo anti-mould and anti-moth method |
| CN107486907A (en) * | 2017-09-21 | 2017-12-19 | 南通盛赫园林古建筑工程有限公司 | A kind of woodwork renovates mould proof protection liquid |
| JP7511057B1 (en) | 2023-06-15 | 2024-07-04 | イェン ペン ヤップ | Plant support pole and method for manufacturing plant support pole |
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| CN109732727B (en) * | 2018-11-27 | 2021-03-12 | 北京林业大学 | APP-hierarchical pore molecular sieve composite flame retardant and preparation method and application thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132708A (en) * | 1984-07-25 | 1986-02-15 | 松下電工株式会社 | Method of coloring wood veneer |
| JPS6456502A (en) * | 1987-08-28 | 1989-03-03 | Narinori Enomoto | Method of treating wood |
| JPH10180717A (en) * | 1996-10-22 | 1998-07-07 | Maiutsudo Kk | Method for injecting liquid into lumber, lumber, and woody composite material |
| JP2000141316A (en) * | 1998-11-09 | 2000-05-23 | Showa Denko Kk | Modified wood and its manufacture |
| US6250350B1 (en) * | 1996-10-22 | 2001-06-26 | Mywood Kabushiki Kaisha | Method of impregnating wood with liquid |
| JP2003267814A (en) * | 2002-03-13 | 2003-09-25 | Umeno Sugawara | Electrolytic ionic liquid of bamboo vinegar |
| JP2004044130A (en) * | 2002-07-09 | 2004-02-12 | Hokumon Constoruction Co Ltd | Paint, coating method for building material, and coating method for bedsill |
| JP3104526U (en) * | 2004-04-08 | 2004-09-30 | 有限会社ボロンテクノロジー | Pet shed |
| JP2005111916A (en) * | 2003-10-10 | 2005-04-28 | Kikumoku:Kk | Preservative-treated timber |
| JP2005179332A (en) * | 2003-11-25 | 2005-07-07 | Kowa Chem Ind Co Ltd | Ant-repellent coating agent |
| JP2007045134A (en) * | 2005-08-05 | 2007-02-22 | Boron Technology:Kk | Timber conservation agent based on borate |
| JP2007051231A (en) * | 2005-08-19 | 2007-03-01 | Kido Toshihiro | Composition |
-
2014
- 2014-12-08 JP JP2014247839A patent/JP6310839B2/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6132708A (en) * | 1984-07-25 | 1986-02-15 | 松下電工株式会社 | Method of coloring wood veneer |
| JPS6456502A (en) * | 1987-08-28 | 1989-03-03 | Narinori Enomoto | Method of treating wood |
| JPH10180717A (en) * | 1996-10-22 | 1998-07-07 | Maiutsudo Kk | Method for injecting liquid into lumber, lumber, and woody composite material |
| US6250350B1 (en) * | 1996-10-22 | 2001-06-26 | Mywood Kabushiki Kaisha | Method of impregnating wood with liquid |
| JP2000141316A (en) * | 1998-11-09 | 2000-05-23 | Showa Denko Kk | Modified wood and its manufacture |
| JP2003267814A (en) * | 2002-03-13 | 2003-09-25 | Umeno Sugawara | Electrolytic ionic liquid of bamboo vinegar |
| JP2004044130A (en) * | 2002-07-09 | 2004-02-12 | Hokumon Constoruction Co Ltd | Paint, coating method for building material, and coating method for bedsill |
| JP2005111916A (en) * | 2003-10-10 | 2005-04-28 | Kikumoku:Kk | Preservative-treated timber |
| JP2005179332A (en) * | 2003-11-25 | 2005-07-07 | Kowa Chem Ind Co Ltd | Ant-repellent coating agent |
| JP3104526U (en) * | 2004-04-08 | 2004-09-30 | 有限会社ボロンテクノロジー | Pet shed |
| JP2007045134A (en) * | 2005-08-05 | 2007-02-22 | Boron Technology:Kk | Timber conservation agent based on borate |
| JP2007051231A (en) * | 2005-08-19 | 2007-03-01 | Kido Toshihiro | Composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182285A (en) * | 2016-07-20 | 2016-12-07 | 潘昌洪 | A kind of bamboo anti-mould and anti-moth method |
| CN107486907A (en) * | 2017-09-21 | 2017-12-19 | 南通盛赫园林古建筑工程有限公司 | A kind of woodwork renovates mould proof protection liquid |
| JP7511057B1 (en) | 2023-06-15 | 2024-07-04 | イェン ペン ヤップ | Plant support pole and method for manufacturing plant support pole |
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