JPH072326B2 - Wood modification method - Google Patents
Wood modification methodInfo
- Publication number
- JPH072326B2 JPH072326B2 JP2147746A JP14774690A JPH072326B2 JP H072326 B2 JPH072326 B2 JP H072326B2 JP 2147746 A JP2147746 A JP 2147746A JP 14774690 A JP14774690 A JP 14774690A JP H072326 B2 JPH072326 B2 JP H072326B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- steam atmosphere
- compression
- molded
- kgf
- 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
- 239000002023 wood Substances 0.000 title claims description 43
- 238000002715 modification method Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 241000218645 Cedrus Species 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 3
- 241000233866 Fungi Species 0.000 description 3
- 229930003836 cresol Natural products 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000218691 Cupressaceae Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- RSIWALKZYXPAGW-NSHDSACASA-N 6-(3-fluorophenyl)-3-methyl-7-[(1s)-1-(7h-purin-6-ylamino)ethyl]-[1,3]thiazolo[3,2-a]pyrimidin-5-one Chemical compound C=1([C@@H](NC=2C=3N=CNC=3N=CN=2)C)N=C2SC=C(C)N2C(=O)C=1C1=CC=CC(F)=C1 RSIWALKZYXPAGW-NSHDSACASA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 240000000599 Lentinula edodes Species 0.000 description 1
- 235000001603 Pleurotus ostreatus Nutrition 0.000 description 1
- 240000001462 Pleurotus ostreatus Species 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical class O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、木材の改質処理方法に関するもので、杉等の
軟質材の堅牢化を図るとともに、間伐材等の小径木や弯
曲材の非切削による柱状成形加工を図る場合に使用され
る。Description: TECHNICAL FIELD The present invention relates to a method for modifying and treating wood, which is intended to solidify soft materials such as cedar and to make small-diameter trees such as thinned wood and curved materials. It is used for non-cutting columnar forming.
杉等の軟質材は、建築材料として多用されてはいるもの
の、堅牢度が低いために、使用される場合が限定されて
いた。Although soft materials such as cedar are often used as building materials, their use is limited because of their low robustness.
また、杉、檜等の成育過程において除去される間伐材
は、小径木であり、極めて軟らかく、また弯曲している
ため柱材などとして殆ど利用できないのが現状である。In addition, the thinned wood that is removed during the growth process of cedar, cypress, etc. is a small-diameter tree, which is extremely soft and curved, so that it cannot be used as a pillar material at present.
これらの木材については、木質の強化を図るための研
究、例えば、マイクロ波による圧密化などの研究が行わ
れているが、その圧密による変形を固定する効果的な方
法が未だ見い出されていない。また、マイクロ波では厚
肉の木材を処理することが困難であり、また、コストが
高くつく。Research has been conducted on these woods for strengthening the wood quality, for example, consolidation by microwaves, but an effective method for fixing the deformation due to the consolidation has not yet been found. Further, it is difficult to process thick wood with microwaves, and the cost is high.
本発明の目的は、木材の改質処理方法において、圧密化
により木材の特性の向上を図り、かつ、圧縮成形された
状態を固定する方法を提供することにある。An object of the present invention is to provide a method for improving the properties of wood by consolidating and fixing a compression-molded state in a method for modifying and treating wood.
上記課題を解決するため、本発明では、木材を５〜25kg
f/cm2の高温高圧の水蒸気雰囲気内に置いて軟化させた
後、上記水蒸気雰囲気内で、上記木材を機械的に圧縮す
ることにより、体積で約1/2〜1/3の所望の形状に圧縮成
形するとともにその変形を固定するようにしたものであ
る。In order to solve the above problems, in the present invention, 5 to 25 kg of wood
After being placed in a steam atmosphere of high temperature and high pressure of f / cm 2 to be softened, by mechanically compressing the wood in the steam atmosphere, a desired shape of about 1/2 to 1/3 in volume is obtained. It is formed by compression molding and the deformation is fixed.
上記の各工程を同一の圧力容器内で行うことにより１段
階で圧縮成形処理および固定化を実行することができる
が、軟化させた木材を常圧下で圧縮成形し、圧縮成形し
た木材をそのまま状態で再び高温高圧の水蒸気雰囲気内
に置いて変形を固定するようにしてもよい。By performing each of the above steps in the same pressure vessel, compression molding treatment and immobilization can be performed in one step. However, softened wood is compression molded under normal pressure, and the compression molded wood remains as it is. Alternatively, the deformation may be fixed by placing it again in a high temperature and high pressure steam atmosphere.
木材を５〜25kgf/cm2の水蒸気雰囲気内に置くと木材は
水蒸気を吸収して木材自体の温度が上昇し（数分乃至数
十分放置することによって木材の温度が130〜200℃とな
る）、木材が軟化すると共に、木質の分解が徐々に進行
する。When the wood is placed in a steam atmosphere of 5 to 25 kgf / cm 2 , the wood absorbs steam and the temperature of the wood itself rises (the temperature of the wood becomes 130 to 200 ° C by leaving it for several minutes to several tens of minutes. ), As the wood softens, decomposition of wood gradually progresses.
この状態で木材を機械的に圧縮することにより、体積で
1/2〜1/3程度に圧縮され、木材中に形成されている微細
な空洞部分が小さくなって硬く、且つ、強い木質とな
る。By mechanically compressing the wood in this state,
It is compressed to about 1/2 to 1/3, and the minute hollow parts formed in the wood become smaller, making it hard and strong wood.
同時に、木質に含まれるヘミセルロースとリグニンが部
分的に解重合し、その結果フェノール化合物とフルフラ
ール化合物等の化学物質が生成される。これらの化合物
は茸類等の坦子菌の成育を阻害させる性質を持ってい
る。これによって木材腐朽菌に対する耐久性を向上させ
ることができる。At the same time, hemicellulose and lignin contained in the wood are partially depolymerized, and as a result, chemical substances such as phenol compounds and furfural compounds are produced. These compounds have the property of inhibiting the growth of carrier fungi such as mushrooms. This can improve the durability against wood-destroying fungi.
水蒸気雰囲気内において圧縮することが困難な場合に
は、一旦取り出して常圧下で木材を圧縮することになる
（請求項２）。When it is difficult to compress in a steam atmosphere, it is taken out once and the wood is compressed under normal pressure (claim 2).
圧縮状態のまま再び水蒸気雰囲気内に置くことによっ
て、上記と同じ作用を奏することになる。By placing the compressed state again in the steam atmosphere, the same effect as described above can be obtained.
上記の方法によって圧縮した木材を、通常使用されてい
る木材と対比してみると、下表のようになる。The following table compares the wood compressed by the above method with the wood that is normally used.
この表は、木材圧縮後に吸水しても元の大きさに復元し
ないことも示している。これは、木材が水蒸気圧によっ
て化学変化を起こしている結果であると思われる。 The table also shows that water does not return to its original size after being compressed. This seems to be the result of the wood undergoing chemical changes due to water vapor pressure.
尚、水蒸気圧が5kgf/cm2より小さい場合には上記の化学
変化が生じることはなく、また逆に、25kgf/cm2より大
きくすると木材成分の分解が進行してその物理的強度が
低下する。If the water vapor pressure is less than 5 kgf / cm 2 , the above chemical change does not occur, and conversely, if it exceeds 25 kgf / cm 2 , the decomposition of the wood component proceeds and its physical strength decreases. .
従来軟質材として用途が限定されていた木材や未利用の
間伐材を広範囲において利用できることになる。It will be possible to use wood and unused thinned wood that have been limited in their applications as soft wood in a wide range.
圧縮された木材が坦子菌の成育を阻害する結果、耐腐朽
性を持たせることができ、木材自体に耐久性を持たせら
れる利点もある。As a result of the compressed wood impeding the growth of the bacterium, it is possible to impart rot resistance and the wood itself has the advantage of being durable.
また、吸水による寸法安定性が向上する。また、弯曲材
も真直に成形できるため、未利用木材の有効利用が可能
である。Further, dimensional stability due to water absorption is improved. Further, since the curved material can be formed straight, it is possible to effectively use the unused wood.
〔実施例〕 次に、上記技術的手段の具体例について説明する。[Examples] Next, specific examples of the above technical means will be described.
−第−実施例− 比重0.3の檜材から切り出した試片を15kgf/cm2の水蒸気
雰囲気内にて15分間放置した後、本雰囲気中で1/3に圧
縮加工した。この試片の比重を計ったところ0.9となっ
ており、色はやや褐色となっていた。-First Example-A test piece cut out from a cypress material having a specific gravity of 0.3 was left for 15 minutes in a steam atmosphere of 15 kgf / cm 2 and then compressed to 1/3 in this atmosphere. When the specific gravity of this sample was measured, it was 0.9, and the color was slightly brown.
この試片を粉砕して椎茸、ひら茸、かわら茸の培地に加
えて坦子菌を培養したところ、試片を加えない培地で培
養したものに比べ、菌糸の伸長は1/2〜1/5となり、耐腐
朽性が向上していることが確認された。When this test piece was crushed and the carrier fungus was cultivated by adding it to the medium of shiitake mushrooms, hiratake mushrooms, and kawaratake mushrooms, the mycelial elongation was 1/2 to 1 / compared with those cultivated in the medium without addition of the sample. It was confirmed to be 5, and the decay resistance was improved.
−第二実施例− 上記実施例において、圧力容器内に約10％の濃度となる
ようにクレゾール液を入れて処理したところ、試片内部
にクレゾール液が含浸されていることが確認された。-Second Example- In the above example, when the cresol solution was put into the pressure vessel so as to have a concentration of about 10% and treated, it was confirmed that the cresol solution was impregnated inside the test piece.
従って、水蒸気内にクレゾール、その他の薬剤を混合さ
せることによって、薬効のある木材を得ることができ
る。Therefore, medicinal wood can be obtained by mixing cresol and other chemicals in water vapor.
−第三実施例− 22年生のスギ間伐材（直径10.5cm×長さ7.5cm）を15kgf
/cm2の水蒸気雰囲気内にて15分間蒸煮した後、本雰囲気
中で二枚の対向する断面Ｖ字型の治具により7cm角の正
四角柱に圧縮成形した。-Third Example- 15 kgf of 22-year-old cedar thinning material (10.5 cm in diameter x 7.5 cm in length)
After steaming for 15 minutes in a water vapor atmosphere of / cm 2 , it was compression molded into a 7 cm square prism by two facing jigs having V-shaped cross sections in this atmosphere.
このように、間伐材を非切削で柱状に圧縮成形すること
ができ、水蒸気中で成形された材は、マイクロ液などに
よる加工とはちがって圧縮変形が固定されており、その
後吸水によって変形が回復することはない。またこの方
法を用いることにより弯曲した間伐材でも真直な柱に成
形することが可能であり、また、乾燥による割れや捩れ
等が生じない。さらに、切削による柱の製造とはちがっ
て細い間伐材から比較的太い角柱を製造することがで
き、しかも、1.5〜２倍に圧縮されているため表面硬度
の高い、かつ、無節の柱を容易に製造することが可能と
なった。In this way, the thinned material can be compression-molded into a column shape without cutting, and the material molded in steam has a fixed compression deformation unlike the processing with micro liquid etc., and is then deformed by water absorption. There is no recovery. Further, by using this method, it is possible to form a straight column even with a bent thinning material, and cracks and twists due to drying do not occur. Furthermore, unlike the manufacturing of pillars by cutting, relatively thick prisms can be manufactured from thin thinned wood, and since they are compressed by 1.5 to 2 times, they have high surface hardness and are columnless. It became possible to manufacture easily.
Claims (2)
雰囲気内に置いて軟化させた後、上記水蒸気雰囲気内
で、上記木材を機械的に圧縮することにより、体積で約
1/2〜1/3の所望の形状に圧縮成形するとともにその変形
を固定するようにしたことを特徴とする木材の改質処理
方法。1. The wood is placed in a steam atmosphere of high temperature and high pressure of 5 to 25 kgf / cm 2 to be softened, and then the wood is mechanically compressed in the steam atmosphere so that the wood has a volume of about
A method for modifying and treating wood, characterized in that it is compression-molded to a desired shape of 1/2 to 1/3 and its deformation is fixed.
雰囲気内に置いて軟化させた後、常圧下で上記木材を機
械的に圧縮することにより、体積で約1/2〜1/3の所望の
形状に圧縮成形し、圧縮成形した木材をその状態で再び
上記水蒸気雰囲気内に置いて変形を固定するようにした
ことを特徴とする木材の改質処理方法。2. The wood is placed in a high temperature and high pressure steam atmosphere of 5 to 25 kgf / cm 2 to be softened, and then the wood is mechanically compressed under normal pressure to obtain about 1/2 to 1 in volume. A method for modifying wood, characterized in that the wood is compression-molded into a desired shape of / 3, and the compression-molded wood is again placed in the steam atmosphere to fix the deformation.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2147746A JPH072326B2 (en) | 1989-12-25 | 1990-06-05 | Wood modification method |
| EP91900949A EP0460235B1 (en) | 1989-12-25 | 1990-12-21 | Method and apparatus for treating wood |
| DE69023762T DE69023762T2 (en) | 1989-12-25 | 1990-12-21 | METHOD AND DEVICE FOR TREATING WOOD. |
| US07/741,417 US5247975A (en) | 1989-12-25 | 1990-12-21 | Wood treating method and apparatus |
| DK91900949.8T DK0460235T3 (en) | 1989-12-25 | 1990-12-21 | Method and apparatus for treating wood |
| PCT/JP1990/001681 WO1991009713A1 (en) | 1989-12-25 | 1990-12-21 | Method and apparatus for treating wood |
| CA002047215A CA2047215C (en) | 1989-12-25 | 1990-12-21 | Wood treating method and apparatus |
| US08/043,088 US5343913A (en) | 1989-12-25 | 1993-05-21 | Wood treating method and apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33559589 | 1989-12-25 | ||
| JP1-335595 | 1989-12-25 | ||
| JP2147746A JPH072326B2 (en) | 1989-12-25 | 1990-06-05 | Wood modification method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34370795A Division JP2866336B2 (en) | 1989-12-25 | 1995-12-28 | Wood modification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03231802A JPH03231802A (en) | 1991-10-15 |
| JPH072326B2 true JPH072326B2 (en) | 1995-01-18 |
Family
ID=26478202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2147746A Expired - Lifetime JPH072326B2 (en) | 1989-12-25 | 1990-06-05 | Wood modification method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072326B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04126202A (en) * | 1990-09-17 | 1992-04-27 | Daiken Trade & Ind Co Ltd | Manufacturing method for highly deformed wood materials |
| JPH0732325A (en) * | 1993-07-12 | 1995-02-03 | Ibiden Co Ltd | Laminated wood and its manufacture |
| DK175650B1 (en) | 1996-10-04 | 2005-01-03 | Mywood Corp | Method for hydrostatic pressure forming of wood |
| CA2539272C (en) | 2003-09-18 | 2009-12-29 | Takenaka Corporation | Method and apparatus for environmental setting and data for environmental setting |
| JP4766512B2 (en) * | 2005-12-14 | 2011-09-07 | オリンパス株式会社 | Wood processing method |
| JP5250802B2 (en) * | 2011-07-12 | 2013-07-31 | 特定非営利活動法人木の町づくり協議会 | Interlocking block and manufacturing method thereof |
| CN104493936B (en) * | 2014-12-02 | 2016-03-30 | 王凯 | Cork densification passes into vaporization method when becoming hardwood |
| CN116277320B (en) * | 2023-02-28 | 2025-08-05 | 叁桐(海南)国际科技有限公司 | A fixed-length compression board based on high frequency |
| CN116214645B (en) * | 2023-02-28 | 2025-08-05 | 叁桐(海南)国际科技有限公司 | A preparation process of fixed-length compressed board based on high frequency |
| CN118617536A (en) * | 2023-03-09 | 2024-09-10 | 嘉禾聚能(北京)科技有限公司 | Micro-carbonization treatment method of bamboo and its products and applications |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60217102A (en) * | 1984-04-13 | 1985-10-30 | タイ開発株式会社 | Manufacture of bent wood of gum tree |
| JPH01152005A (en) * | 1987-12-09 | 1989-06-14 | Kikkoman Corp | Method of machining wood |
-
1990
- 1990-06-05 JP JP2147746A patent/JPH072326B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03231802A (en) | 1991-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0460235B1 (en) | Method and apparatus for treating wood | |
| DK170147B1 (en) | Catalyst-Free Process for Improving Dimensional Stability and Biological Resistance of Lignocellulose Materials | |
| Pfriem et al. | Furfuryl alcohol impregnation for improved plasticization and fixation during the densification of wood. | |
| JPH072326B2 (en) | Wood modification method | |
| ZA200304103B (en) | Wood products and processes for the preparation thereof. | |
| Dong et al. | Structure and Properties of Polymer-Impregnated Wood Prepared by in-situ Polymerization of Reactive Monomers. | |
| JP2866336B2 (en) | Wood modification method | |
| Miki et al. | Superplastic deformation of solid wood by slipping cells at sub-micrometre intercellular layers | |
| Wu et al. | Improvement of Bamboo Properties via In Situ Construction of Polyhydroxyethyl Methylacrylate and Polymethyl Methylacrylate Networks. | |
| JP3916258B2 (en) | Wood treatment method by impregnation | |
| Yao et al. | Triethanolamine impregnation/steam synergistic softening of teakwood to improve bending properties and its mechanism | |
| KR930007667B1 (en) | Manufacturing Method of Particle Board | |
| Budiman et al. | Physical and mechanical properties of five Indonesian wood treated with polystyrene | |
| He et al. | Fabrication of highly stable and durable wood materials by modification of polyacrylamide (PAM)-glyoxal (GLY) | |
| JP2569376B2 (en) | Wood processing equipment | |
| JP3643436B2 (en) | Wood impregnation method | |
| JP3198471B2 (en) | Method for producing modified wood | |
| CN1079424A (en) | Denaturation method of wood | |
| RU2745502C2 (en) | Product of modified wood and method of its production | |
| JP2928799B2 (en) | Wood processing equipment | |
| JP3209942B2 (en) | Wood treatment method, treatment agent used in the method, and apparatus used for carrying out the method | |
| Witomski et al. | Variation in cellulose properties in the common pine (Pinus sylvestris L.) wood during white-and brown-rot decay induced by Coniophora puteana and Trametes versicolor fungi | |
| JPH047101A (en) | Method for infiltrating treating liquid in wood | |
| JP3377845B2 (en) | Manufacturing method of wood material with stabilized water resistance | |
| JPH03295605A (en) | Shaped lumber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090118 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100118 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110118 Year of fee payment: 16 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110118 Year of fee payment: 16 |