JPH0357841B2 - - Google Patents
Info
- Publication number
- JPH0357841B2 JPH0357841B2 JP57209943A JP20994382A JPH0357841B2 JP H0357841 B2 JPH0357841 B2 JP H0357841B2 JP 57209943 A JP57209943 A JP 57209943A JP 20994382 A JP20994382 A JP 20994382A JP H0357841 B2 JPH0357841 B2 JP H0357841B2
- Authority
- JP
- Japan
- Prior art keywords
- preservative
- wood
- carbon dioxide
- treatment
- dioxide gas
- 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.)
- Expired - Lifetime
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 74
- 239000003755 preservative agent Substances 0.000 claims description 50
- 230000002335 preservative effect Effects 0.000 claims description 40
- 239000001569 carbon dioxide Substances 0.000 claims description 37
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 37
- 239000002023 wood Substances 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 239000003171 wood protecting agent Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 241001070947 Fagus Species 0.000 description 5
- 235000010099 Fagus sylvatica Nutrition 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 230000002421 anti-septic effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910001506 inorganic fluoride Inorganic materials 0.000 description 3
- 230000000749 insecticidal effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- WHRZCXAVMTUTDD-UHFFFAOYSA-N 1h-furo[2,3-d]pyrimidin-2-one Chemical compound N1C(=O)N=C2OC=CC2=C1 WHRZCXAVMTUTDD-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 235000006173 Larrea tridentata Nutrition 0.000 description 2
- 244000073231 Larrea tridentata Species 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 150000001495 arsenic compounds Chemical class 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229960002126 creosote Drugs 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229940093920 gynecological arsenic compound Drugs 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachlorophenol Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 239000010875 treated wood Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Description
【発明の詳細な説明】
この発明は、木材の防腐処理法に係り、防腐剤
の溶媒に液状または超臨界状態の炭酸ガスを用い
ることにより、防腐剤の木材への浸透速度を早
め、処理後の乾燥を容易とし、しかも防腐剤薬液
の廃水処理を不必要とするようにしたものであ
る。Detailed Description of the Invention The present invention relates to a method for preservative treatment of wood. By using liquid or supercritical carbon dioxide gas as a solvent for the preservative, the rate of permeation of the preservative into the wood is increased. This makes drying of the preservative easier and eliminates the need for wastewater treatment of preservative chemicals.
木材の防腐、防虫処理方法には、塗布法、浸漬
法、温冷浴法、拡散法、木口加圧注入法、加圧注
入法がそれぞれ目的、用途に応じて選択されて用
いられている。これらの処理法の内、一般的なも
のは、加圧注入法であり、防腐剤の浸透にすぐ
れ、大量処理に適し、防腐土台等の処理に広く利
用されている。この加圧注入法は、耐圧20Kg／cm2
程度の加圧タンクを使用し、タンク内に木材を入
れ、予め減圧したのち水に溶解せしめた防腐剤薬
液を注入し、その後加圧して木材中に防腐剤を浸
透させ、この操作を繰り返すことにより、所定の
浸透量にまで浸透させるものである。そして、こ
の際使用される防腐剤としてはCCA系防腐剤
（クロム、銅、砒素化合物水溶液）やPF系防腐剤
（フエノール類、無機フツ化物、無機砒素化合物、
クロム化合物水溶液）、クレオソート等がある。 As methods for preservative and insect repellent treatment of wood, coating methods, dipping methods, hot/cold bath methods, diffusion methods, end pressure injection methods, and pressure injection methods are used, each selected depending on the purpose and use. Among these treatment methods, the common one is the pressurized injection method, which has excellent penetration of preservatives, is suitable for large-scale treatment, and is widely used for treating preservative foundations and the like. This pressurized injection method has a pressure resistance of 20Kg/cm 2
Using a high pressure tank, place wood in the tank, reduce the pressure in advance, inject a preservative solution dissolved in water, then apply pressure to infiltrate the preservative into the wood, and repeat this operation. This allows the liquid to penetrate to a predetermined amount. The preservatives used at this time include CCA preservatives (aqueous solutions of chromium, copper, and arsenic compounds) and PF preservatives (phenols, inorganic fluorides, inorganic arsenic compounds,
chromium compound aqueous solution), creosote, etc.
ところが、これらの防腐処理法はいずれも防腐
剤の木材への浸透に時間がかかり、ややもすると
浸透量が不足し、防腐、防虫効果が不十分となつ
たり、防腐剤の浸透を良好とするため、木材表面
に繊維方向に直角に切り傷を入れたり、予め木材
中の含水率を落しておく必要があつたりした。ま
た、処理後の乾燥が必要であり、さらには処理後
の防腐剤薬液の廃液処理が必要であるなどの問題
があつた。 However, with all of these preservative treatment methods, it takes time for the preservative to penetrate into the wood, and the amount of penetration may become insufficient, resulting in insufficient antiseptic and insect repellent effects, or insufficient penetration of the preservative into the wood. Therefore, it was necessary to make cuts on the wood surface at right angles to the fiber direction, or to reduce the moisture content in the wood in advance. Further, there were problems such as the need for drying after the treatment and the need for waste liquid treatment of the preservative solution after the treatment.
この発明は上記事情に鑑みてなされたもので、
防腐剤の浸透速度が著るしく速く、よつて十分量
の防腐剤を短時間に木材中に浸透させることがで
き、しかも予備乾燥や傷を入れる必要がなく、さ
らに処理後の木材の乾燥が容易でかつ処理薬液の
廃液処理を全く必要としない木材の防腐処理法を
提供することを目的とし、防腐剤の溶媒に液状ま
たは超臨界状態の炭酸ガスを用いて、耐熱容器内
で炭酸ガスが液状あるいは超臨界状態を保持した
状態のもとで、木材に接触、浸透させることを特
徴とするものである。 This invention was made in view of the above circumstances,
The penetration rate of the preservative is extremely fast, so a sufficient amount of the preservative can be penetrated into the wood in a short time, and there is no need for pre-drying or scratching, and the wood can be dried easily after treatment. The purpose is to provide a wood preservative treatment method that is easy and does not require any waste treatment of treatment chemicals.The purpose is to provide a method for preservative treatment of wood that is easy and does not require any waste liquid treatment. It is characterized by contacting and permeating wood in a liquid or supercritical state.
以下、この発明を詳細に説明する。 This invention will be explained in detail below.
まず、この発明に用いられ、防腐剤の溶媒とな
る炭酸ガスの性状について説明する。第１図は炭
酸ガスの圧力−温度線図（PT−ダイヤグラム）
を示すもので、炭酸ガスの温度、圧力に応じた各
状態（液体、固体、気体）が表示されている。図
中TPは三重点で三相が共存する温度、圧力を示
し、CPは臨界点で圧力（Pc）73.8バール（72.84
Kg／cm2）、温度（Tc）31.06℃である。この発明
で用いられる炭酸ガスは第１図中斜線で示した範
囲内にあるもので、液状炭酸ガス好ましくはその
温度での蒸気圧以上に加圧した炭酸ガスおよび超
臨界状態の炭酸ガスである。ここで超臨界状態と
は、臨界点（CP）以上の圧力、温度の領域を指
す。 First, the properties of carbon dioxide gas used in this invention and serving as a solvent for the preservative will be explained. Figure 1 is the pressure-temperature diagram (PT-diagram) of carbon dioxide gas.
The various states (liquid, solid, gas) of carbon dioxide gas are displayed depending on the temperature and pressure. In the figure, TP indicates the temperature and pressure at which three phases coexist at the triple point, and CP indicates the pressure (Pc) at the critical point of 73.8 bar (72.84 bar).
Kg/cm 2 ) and temperature (Tc) 31.06°C. The carbon dioxide gas used in this invention falls within the shaded range in Figure 1, and is preferably liquid carbon dioxide gas, preferably carbon dioxide gas pressurized above the vapor pressure at that temperature, or carbon dioxide gas in a supercritical state. . Here, the supercritical state refers to a region of pressure and temperature above the critical point (CP).
このような液状または超臨界状態の炭酸ガスに
防腐剤を溶解して防腐処理薬液とする。ここで用
いられる防腐剤としては、クレオソート油、クロ
ム・銅・砒素系防腐剤（CCA系）、フエノール
類・無機フツ化物系防腐剤（PF系あるいはFCP
系）、ペンタクロルフエノール系防腐剤などの液
状炭酸ガスあるいは超臨界状態の炭酸ガスに可溶
の木材用防腐防虫剤が挙げられ、炭酸ガスに対す
る溶解量はその種類、処理木材の用途等によつて
異なるが通常は炭酸ガス100重量部に対して１〜
10重量部の範囲が望ましいがこれに限定されるこ
とはない。 A preservative solution is prepared by dissolving a preservative in such liquid or supercritical carbon dioxide gas. The preservatives used here include creosote oil, chromium/copper/arsenic preservatives (CCA series), phenols/inorganic fluoride preservatives (PF series or FCP series),
wood preservatives and insecticides that are soluble in liquid carbon dioxide gas or supercritical carbon dioxide gas, such as pentachlorophenol preservatives, etc. Although the amount varies, it is usually 1 to 100 parts by weight of carbon dioxide gas.
A range of 10 parts by weight is desirable, but not limited thereto.
このようにして得られた防腐処理薬液を木材に
接触浸透させて防腐処理を行う。この防腐処理の
具体例を第２図のフローシートを参照して説明す
る。 The thus obtained preservative treatment chemical solution is allowed to contact and permeate the wood to carry out the preservative treatment. A specific example of this preservative treatment will be explained with reference to the flow sheet of FIG.
防腐処理される木材１は、台車２ごと耐圧構造
の処理タンク３内に収められる。炭酸ガス貯槽４
からポンプ５によつて炭酸ガスが弁６を経て処理
タンク３に送られ、ここで気化して処理タンク３
内の空気を弁７からパージする。ついで、弁６，
７を閉じ、弁８から薬液タンク９に防腐剤を所定
量投入し、炭酸ガス貯槽４から弁１０、ポンプ
５、弁１１を経て所定量の液状もしくは超臨界状
態の炭酸ガスを送り、防腐剤を溶解させて防腐処
理薬液を作る。そして、弁１２を開いて薬液タン
ク９から防腐処理薬液を処理タンク３に送り、木
材１に接触させて木材中に薬液を浸透させる。所
定時間処理後、弁１３を開き、ポンプ１４によつ
て残余の防腐薬液を処理タンク３から回収タンク
１５に回収する。ついで弁７を開放して処理タン
ク３内の残存炭酸ガスを大気放出し、タンク３内
を大気圧に戻し、空気で置換させ、防腐処理済み
木材を処理タンク３から取り出す。 The wood 1 to be preservative-treated is stored together with the cart 2 in a treatment tank 3 having a pressure-resistant structure. Carbon dioxide storage tank 4
The carbon dioxide gas is sent to the processing tank 3 via the valve 6 by the pump 5, where it is vaporized and sent to the processing tank 3.
purge the air inside through valve 7. Next, valve 6,
7 is closed, a predetermined amount of preservative is put into the chemical tank 9 from the valve 8, and a predetermined amount of liquid or supercritical carbon dioxide is sent from the carbon dioxide storage tank 4 through the valve 10, pump 5, and valve 11, and the preservative is Dissolve it to make an embalming chemical solution. Then, the valve 12 is opened to send the preservative treatment chemical from the chemical tank 9 to the treatment tank 3, and the chemical is brought into contact with the wood 1 to penetrate into the wood. After processing for a predetermined period of time, the valve 13 is opened, and the remaining antiseptic liquid is recovered from the processing tank 3 into the recovery tank 15 by the pump 14. Then, the valve 7 is opened to release the remaining carbon dioxide gas in the treatment tank 3 to the atmosphere, the pressure inside the tank 3 is returned to atmospheric pressure, the air is replaced, and the preservative-treated wood is taken out from the treatment tank 3.
回収タンク１５に回収された残余の防腐薬液
は、次の処理の際に弁１６を経て薬液タンク９に
送られ、再び処理に用いられる。 The remaining antiseptic liquid recovered in the recovery tank 15 is sent to the chemical liquid tank 9 through the valve 16 during the next treatment, and is used again for the treatment.
このような防腐処理によつて、木材１中にその
中心部まで防腐剤が浸透し、良質の防腐木材とな
る。液状または超臨界状態の炭酸ガスは、第３図
のグラフに示すように、その粘度が一般の防腐剤
溶解溶媒である水に比べて1/10〜1/30で極めて低
粘度であり、このような炭酸ガスに防腐剤を溶解
した防腐処理薬液も同様に従来のものに比べて低
粘度となり、木材中への防腐処理薬液の浸透速度
が極めて大きくなり、処理時間を格段に短縮でき
る。よつて、木材中へは十分量の薬液を非常に短
時間に浸透せしめることができ、高い防腐効果を
得ることができる。また、処理の終つた木材は大
気中に放置するだけで溶媒の炭酸ガスが速やかに
揮散してゆくので、特別の乾燥工程を設ける必要
もなく、乾燥も簡便である。さらに、液状あるい
は超臨界状態の炭酸ガスは脱脂作用、殺虫、殺菌
作用をも有し、木材中の樹脂分（ヤニ）が同時に
除去され、木材の殺虫、殺菌も行われる。また、
炭酸ガスは不燃性であり、防腐処理中の爆発、火
災の心配もない。しかも、従来の加圧注入法の処
理設備のほとんどがそのまま転用できる。また、
廃棄液はそのまま炭酸ガスを放散すればわずかの
量の固形分が残るのみなので、その処分はいたつ
て簡単に、例えば土中に埋設することにより行え
る。 By such preservative treatment, the preservative penetrates into the wood 1 to the center thereof, resulting in high-quality preservative wood. As shown in the graph in Figure 3, liquid or supercritical carbon dioxide has an extremely low viscosity of 1/10 to 1/30 that of water, which is a common solvent for dissolving preservatives. Similarly, the preservative solution, which has a preservative dissolved in carbon dioxide gas, has a lower viscosity than conventional ones, and the penetration rate of the preservative solution into the wood is extremely high, making it possible to significantly shorten the treatment time. Therefore, a sufficient amount of the chemical solution can be penetrated into the wood in a very short time, and a high antiseptic effect can be obtained. Further, the carbon dioxide gas in the solvent quickly evaporates by simply leaving the treated wood in the atmosphere, so there is no need for a special drying process, and drying is simple. Furthermore, carbon dioxide gas in a liquid or supercritical state also has degreasing, insecticidal, and sterilizing effects, and the resin content (tar) in the wood is removed at the same time, and the wood is also insecticidal and sterilized. Also,
Carbon dioxide gas is nonflammable, so there is no risk of explosion or fire during embalming. Moreover, most of the processing equipment for the conventional pressurized injection method can be used as is. Also,
If the waste liquid is directly diffused with carbon dioxide gas, only a small amount of solid content remains, so it can be easily disposed of, for example, by burying it in the ground.
以下、実施例を示して具体的に説明する。 Hereinafter, a specific explanation will be given by showing examples.
実施例
10cm×10cm×10cmのブナ材を予備乾燥して含水
率30wt％以下とした後、５オートクレーブ中
に納めた。一方薬液容器に20℃80Kg／cm2の液状炭
酸ガス0.8Kgにフエノール類無機フツ化物系木材
防腐剤（JIS−Ｋ−1550、１種１号品）を50ｇ供
給し、溶解せしめて防腐処理液として用意した。
この薬液を全量処理タンクに送り、ブナ角材の防
腐処理を行つた。処理条件；20℃、75Kg／cm2で１
時間処理を行つたのち、処理タンクよりブナ材を
取り出し、炭酸ガスを揮散、除去して防腐処理ブ
ナ角材を得た。このブナ角材はその中心部まで防
腐剤が浸透し、防腐材の注入量は８Kg／m3であつ
た。Example A piece of beech wood measuring 10 cm x 10 cm x 10 cm was pre-dried to a moisture content of 30 wt% or less, and then placed in an autoclave. On the other hand, 50g of phenolic inorganic fluoride wood preservative (JIS-K-1550, Type 1 No. 1 product) is supplied to 0.8Kg of liquid carbon dioxide gas at 20℃ 80Kg/ cm2 into a chemical solution container, and dissolved in the preservative treatment solution. Prepared as.
The entire amount of this chemical solution was sent to a treatment tank to preservatively treat the beech timbers. Processing conditions: 1 at 20℃, 75Kg/ cm2
After the time treatment, the beech wood was taken out from the treatment tank, and the carbon dioxide gas was volatilized and removed to obtain a preservative treated beech wood square. The preservative penetrated into the center of this beech timber, and the amount of preservative injected was 8 kg/m 3 .
次に、従来の水に上記防腐剤を溶解した薬液を
用いる加圧注入法で、同一オートクレーブを使用
した場合、上記注入量を得るには、処理条件；60
℃、10Kg／cm2で処理時間７日間を要し、格段に処
理時間の短縮が計られることがわかつた。 Next, when using the same autoclave in the conventional pressurized injection method using a chemical solution in which the above preservative is dissolved in water, in order to obtain the above injection amount, the processing conditions are;
℃, 10 kg/cm 2 required a processing time of 7 days, and it was found that the processing time could be significantly shortened.
以上説明したように、この発明の木材の防腐処
理法は、木材防腐剤の溶媒に液状または超臨界状
態の炭酸ガスを用いて、耐熱容器内で炭酸ガスが
液状あるいは超臨界状態を保持した状態のもと
で、木材に接触、浸透させるものであるので、防
腐処理薬液への木材への浸透速度が著るしく高
く、よつて十分量の防腐剤を短時間に木材中に浸
透させることができる。また、処理後の炭酸ガス
の除去が簡単で特別の乾燥工程を要しない。さら
に、処理後の廃薬液は、炭酸ガスを揮散させるこ
とにより、微かの固形分が残るだけとなり、廃棄
処分が容易となる。また、炭酸ガスは、脱脂作用
および殺虫、殺菌作用を有し、木材中の樹脂分の
除去が可能で、同時に木材の殺虫、殺菌も行いえ
る。しかも、炭酸ガスは不燃性であり、処理中に
爆発、火災の恐れもない。さらに、炭酸ガスは回
収して使用できるので処理費用も低廉とすること
ができる等の利点を有するものである。 As explained above, the wood preservative treatment method of the present invention uses liquid or supercritical carbon dioxide gas as the solvent for the wood preservative, and maintains the carbon dioxide gas in the liquid or supercritical state in a heat-resistant container. Because the preservative is brought into contact with and penetrates into the wood under conditions of can. In addition, carbon dioxide gas can be easily removed after treatment and no special drying process is required. Furthermore, by volatilizing the carbon dioxide gas, only a small amount of solid content remains in the waste chemical solution after treatment, making it easy to dispose of it. In addition, carbon dioxide gas has degreasing, insecticidal, and sterilizing effects, and can remove resin content from wood, and at the same time can also kill insects and sterilize wood. Moreover, carbon dioxide gas is nonflammable and there is no risk of explosion or fire during treatment. Furthermore, since carbon dioxide gas can be recovered and used, processing costs can be reduced.
第１図は炭酸ガスの圧力−温度線図、第２図は
この発明の処理法に用いられる装置を示す系統
図、第３図は水と液状または超臨界状態の炭酸ガ
スの粘度を示すグラフである。
１……木材、３……処理タンク、４……炭酸ガ
ス貯槽、９……薬液タンク。
Figure 1 is a pressure-temperature diagram of carbon dioxide gas, Figure 2 is a system diagram showing the equipment used in the treatment method of this invention, and Figure 3 is a graph showing the viscosity of water and carbon dioxide in a liquid or supercritical state. It is. 1...wood, 3...processing tank, 4...carbon dioxide storage tank, 9...chemical tank.
Claims (1)
剤を溶解した防腐剤薬液を耐圧容器内で炭酸ガス
が液状あるいは超臨界状態を保持した状態のもと
で、木材に接触、浸透させることを特徴とする木
材の防腐処理法。1. A preservative solution prepared by dissolving a wood preservative in carbon dioxide in a liquid or supercritical state is brought into contact with and permeated into wood in a pressure-resistant container while the carbon dioxide remains in a liquid or supercritical state. A wood preservative treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20994382A JPS59101311A (en) | 1982-11-30 | 1982-11-30 | Antiseptic treatment method of wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20994382A JPS59101311A (en) | 1982-11-30 | 1982-11-30 | Antiseptic treatment method of wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59101311A JPS59101311A (en) | 1984-06-11 |
| JPH0357841B2 true JPH0357841B2 (en) | 1991-09-03 |
Family
ID=16581226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20994382A Granted JPS59101311A (en) | 1982-11-30 | 1982-11-30 | Antiseptic treatment method of wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59101311A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2871525B2 (en) * | 1995-04-05 | 1999-03-17 | 高知県 | Dehydration and drying method of wood using carbon dioxide gas |
| DK199801455A (en) | 1998-11-10 | 2000-05-11 | Fls Miljoe A S | Process for impregnating or extracting a resinous wood substrate |
| AUPQ160799A0 (en) * | 1999-07-14 | 1999-08-05 | Commonwealth Scientific And Industrial Research Organisation | Wood preservation |
| FR2798879B1 (en) * | 1999-09-27 | 2001-10-19 | Commissariat Energie Atomique | PROCESS FOR TREATING, AND EXTRACTING ORGANIC COMPOUNDS FROM CORK, WITH A DENSITY FLUID UNDER PRESSURE |
| ATE337145T1 (en) * | 2002-05-08 | 2006-09-15 | Vkr Holding As | METHOD FOR TREATING WOOD USING A CARRIER FLUID UNDER HIGH PRESSURE WITHOUT DAMAGE TO THE WOOD |
| JP4167993B2 (en) * | 2004-03-05 | 2008-10-22 | 株式会社神戸製鋼所 | Drug impregnation method |
| JP2007331367A (en) * | 2006-05-18 | 2007-12-27 | Kobe Steel Ltd | Method for impregnating lumber with chemical |
| JP5965670B2 (en) * | 2012-03-01 | 2016-08-10 | 国立研究開発法人森林総合研究所 | Process for producing heat-treated wood |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916703A (en) * | 1982-07-20 | 1984-01-27 | ア−ス製薬株式会社 | Wood degradation preventive agent composition and method of preventing degradation of wood |
-
1982
- 1982-11-30 JP JP20994382A patent/JPS59101311A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916703A (en) * | 1982-07-20 | 1984-01-27 | ア−ス製薬株式会社 | Wood degradation preventive agent composition and method of preventing degradation of wood |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59101311A (en) | 1984-06-11 |
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