JPH0720606B2 - Method for impregnating wood with treatment liquid - Google Patents
Method for impregnating wood with treatment liquidInfo
- Publication number
- JPH0720606B2 JPH0720606B2 JP2109419A JP10941990A JPH0720606B2 JP H0720606 B2 JPH0720606 B2 JP H0720606B2 JP 2109419 A JP2109419 A JP 2109419A JP 10941990 A JP10941990 A JP 10941990A JP H0720606 B2 JPH0720606 B2 JP H0720606B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- treatment liquid
- impregnated
- compressed
- impregnating
- 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 89
- 239000007788 liquid Substances 0.000 title claims description 35
- 238000000034 method Methods 0.000 title claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000005470 impregnation Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 230000000717 retained effect Effects 0.000 claims 1
- 238000004043 dyeing Methods 0.000 description 4
- 241000218645 Cedrus Species 0.000 description 3
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting 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〕 この発明は、建築材料等に使われる木材の改質等の目的
で木材内に処理液を含浸させる方法に関する。TECHNICAL FIELD The present invention relates to a method of impregnating wood with a treatment liquid for the purpose of modifying wood used for building materials and the like.
従来、木材内に処理液を含浸させる方法としては、たと
えば、下記〜の方法がある。Conventionally, as a method of impregnating wood with a treatment liquid, there are, for example, the following methods.
拡散法（浸漬法） 原料木材を処理液に浸漬し、拡散力により処理液を木材
に含浸させる方法。Diffusion method (immersion method) A method in which raw wood is immersed in a treatment liquid and the treatment liquid is impregnated with the diffusion force.
減圧、加圧含浸法 減圧状態の木材の吸引力により木材内に処理液を含浸さ
せた後、加圧し、その推進力でさらに処理液を木材内へ
含浸させる方法。Pressure reduction, pressure impregnation method A method in which the treatment liquid is impregnated into the wood by the suction force of the depressurized wood, and then the pressure is applied, and the treatment liquid is further impregnated into the wood by the propulsive force.
生木含浸法 原料木材として生木を用い、その葉の蒸散作用による樹
液流を利用して、同生木内に処理液を含浸させる方法。Raw wood impregnation method A method in which raw wood is used as raw material wood, and the processing liquid is impregnated into the raw wood by utilizing the sap flow caused by the transpiration of its leaves.
高低差（重力）利用法 丸太等の原料木材に処理液を含浸させる際、木材を立て
るなどして木材内に高低差を作り、木材の高い方の部分
から低い方の部分に向けて処理液を、処理液自身にかか
る重力を利用して木材内に含浸させる方法。How to use height difference (gravity) When impregnating raw material wood such as logs with a processing liquid, a height difference is created in the wood by erecting the wood so that the processing liquid goes from the higher part to the lower part of the wood. Is used to impregnate wood into the wood by using the gravity of the treatment liquid itself.
ところが、前記含浸方法は、下記のような欠点があっ
た。However, the impregnation method has the following drawbacks.
の拡散法は、含浸性に劣るため、処理液が木材の表面
部だけしか含浸されない。Since the diffusion method of No. 1 is inferior in impregnation property, the treatment liquid impregnates only the surface portion of wood.
の減圧、加圧含浸法は、含浸性が良く、処理液が木材
内部にまで含浸されるが、含浸の度合は木材表面から深
さ数cm程度であるため、厚い木材を用いた場合は、木材
の中心部への含浸性に劣る。また、減圧、加圧等の大掛
かりな装置を必要とするため、コストが高くつき、含浸
できる木材の大きさに制約を受ける。The reduced pressure and pressure impregnation method of 3 has good impregnation property, and the treatment liquid is impregnated into the interior of the wood, but since the degree of impregnation is a few cm from the surface of the wood, when thick wood is used, Poor ability to impregnate the center of wood. Further, since a large-scale device such as depressurization and pressurization is required, the cost is high and the size of the wood that can be impregnated is limited.
の生木含浸法は、木材の太さ、厚さ等に関係なく処理
液を木材の中心部にまで含浸させることが可能となる
が、原料木材として生木を用いる必要であり、また、含
浸に長い時間（1m長当たり２〜３時間）を要する（「木
材保存ハンドブック」、木材保存部会編等参照）。With the raw wood impregnation method, it is possible to impregnate the treatment liquid into the center of the wood regardless of the thickness and thickness of the wood, but it is necessary to use raw wood as the raw wood, and It takes a long time (2 to 3 hours per 1 m length) (see "Wood Preservation Handbook", Wood Preservation Section, etc.).
の高低差を利用法は、木材の太さ、長さ等に関係なく
処理液を木材の中心部にまで含浸させることが可能とな
るが、含浸に長い時間（1m長当たり５〜20時間）を要す
る。The method of utilizing the difference in height makes it possible to impregnate the treatment liquid into the center of the wood regardless of the thickness and length of the wood, but for a long time (5 to 20 hours per 1m length). Requires.
このような事情に鑑み、この発明は、簡易な装置を用い
て、原料木材の太さ、厚さ等に関係なく処理液を木材の
中心部にまで短時間で効率よく含浸させることができる
方法を提供することを課題とする。In view of such circumstances, the present invention is a method for efficiently impregnating the central part of wood with a treatment liquid in a short time regardless of the thickness and thickness of raw wood using a simple device. The challenge is to provide.
前記課題を解決するため、この発明にかかる木材への処
理含浸方法は、加熱湿潤工程と、圧縮工程と、圧縮形状
保持工程と、処理液含浸工程と、乾燥工程とを含む。加
熱湿潤工程は、原料木材を熱水中に浸漬し、加熱湿潤さ
せる工程である。圧縮工程は、加熱湿潤工程で湿潤した
前記木材を圧縮する工程である。圧縮形状保持工程は、
圧縮工程で圧縮された形状を保持したまま前記木材を乾
燥させる工程である。処理液含浸工程は、圧縮形状保持
工程後に、前記木材に処理液を加熱状態で含浸させる工
程である。乾燥工程は、処理液含浸工程後に、前記木材
を乾燥させる工程である。In order to solve the above-mentioned problems, a method for treating and impregnating wood according to the present invention includes a heating and wetting step, a compressing step, a compressed shape maintaining step, a treating solution impregnating step, and a drying step. The heating and moistening step is a step of immersing the raw material wood in hot water to heat and moisten it. The compression step is a step of compressing the wood that has been wet in the heating and moistening step. The compression shape holding process is
It is a step of drying the wood while maintaining the shape compressed in the compression step. The treatment liquid impregnation step is a step of impregnating the wood with the treatment liquid in a heated state after the compressed shape maintaining step. The drying step is a step of drying the wood after the treatment liquid impregnation step.
この発明で用いられる原料木材としては、特に限定され
ないが、木材の歩留まりを考慮すると、製材した角材が
好ましい。また、樹種についは、何ら限定されない。The raw wood used in the present invention is not particularly limited, but in consideration of the yield of wood, lumber obtained by sawing is preferable. Further, the tree species is not limited at all.
前記原料木材を圧縮する方法としては、特に限定され
ず、たとえば、プレス機等の簡易な装置で機械的に圧縮
する方法が挙げられる。圧縮割合は、特に限定されるわ
けではないが、元寸法の50〜90％程度の厚さになるよう
に圧縮することが好ましい。The method of compressing the raw material wood is not particularly limited, and examples thereof include a method of mechanically compressing it with a simple device such as a press. The compression rate is not particularly limited, but it is preferable to perform compression so that the thickness is about 50 to 90% of the original size.
前記原料木材に含浸される処理液としては、特に限定さ
れないが、たとえば、無機イオン溶液、樹脂溶液、染色
液等が挙げられる。The treatment liquid impregnated into the raw wood is not particularly limited, and examples thereof include an inorganic ion solution, a resin solution, a dyeing solution and the like.
加熱処理の方法としては、特に限定されないが、含浸速
度をより向上させるためには、たとえば、マイクロ波加
熱等が好ましい。The method of heat treatment is not particularly limited, but microwave heating or the like is preferable for further improving the impregnation rate.
この発明にかかる木材への処理液含浸方法は、特に限定
されるわけではないが、たとえば、以下のようにして行
われる。The method of impregnating wood with the treatment liquid according to the present invention is not particularly limited, but is performed as follows, for example.
まず、原料木材を熱水に浸漬し、加熱湿潤させる。First, the raw wood is soaked in hot water to be heated and moistened.
次に、木材をプレス機等で圧縮する。Next, the wood is compressed with a press or the like.
その後、圧縮したままの状態で、圧縮された形状が維持
されるまで保持乾燥する。この際、風乾または加熱乾燥
により乾燥させるが、乾燥の度合は、木材の含浸率が５
〜30％程度になるまで乾燥することが望ましい。これ
は、含水率がこの程度になると、木材が圧縮された状態
を保持し、かつ、処理液が含浸され易くなるからであ
る。Then, in the state of being compressed, it is held and dried until the compressed shape is maintained. At this time, it is dried by air-drying or heat-drying.
It is desirable to dry it to about 30%. This is because when the water content is in this range, the wood remains in a compressed state and is easily impregnated with the treatment liquid.
次に、圧縮された木材を処理液に浸漬する。Next, the compressed wood is immersed in the treatment liquid.
その後、浸漬したままの状態でマイクロ波加熱等により
加熱処理して、木材内へ処理液を含浸させる。なお、こ
の加熱処理は、木材を処理液に浸後、処理液から取り出
して、熱風乾燥、マイクロ波加熱等を行うようなもので
あってもよい。Then, heat treatment is performed by microwave heating or the like in the state of being immersed to impregnate the wood with the treatment liquid. Note that this heat treatment may be performed by immersing the wood in the treatment liquid, then removing the wood from the treatment liquid, and performing hot air drying, microwave heating, or the like.
以上の操作後、圧縮された木材は、圧縮前の80〜95％程
度の寸法にまで回復する。その後、溶媒等を乾燥除去す
ることにより所望の含浸処理木材が得られる。After the above operation, the compressed wood is restored to the size of 80 to 95% before compression. Then, the solvent and the like are dried and removed to obtain the desired impregnated wood.
原料木材を処理液に浸漬する前に同木材を圧縮するよう
にすると、木材の穿孔および壁孔等が破壊され、しか
も、圧縮された木材の復元力も作用するため、処理液が
含浸されやすくなる。If the raw wood is compressed before it is immersed in the treatment liquid, the perforations and wall holes of the wood will be destroyed, and the restoring force of the compressed wood will also act, making it easier for the treatment liquid to be impregnated. .
以下に、この発明の具体的な実施例を比較例と併せて説
明する。Specific examples of the present invention will be described below together with comparative examples.
−実施例１− 原料木材として10cm角、30cm長の杉の製材を用い、100
℃の熱水中で24時間煮沸した。その後、一軸加圧プレス
機により元厚の50％になるまで圧縮し、そのままの状態
で風乾した。-Example 1-A 10 cm square, 30 cm long cedar lumber was used as raw material wood, and 100
It was boiled in hot water at ℃ for 24 hours. Then, it was compressed to 50% of the original thickness by a uniaxial press machine and air-dried as it was.
前記圧縮された木材を、80℃に加熱された染色液中へ２
時間浸漬した後、同液から取り出し、熱風乾燥させた。The compressed wood is placed in a dyeing solution heated to 80 ° C.
After soaking for a period of time, it was taken out of the same solution and dried with hot air.
得られた含浸処理木材は、元寸法の90％にまで復元し、
その中心部にまで染色されていた。The obtained impregnated wood is restored to 90% of its original size,
It was dyed even in the center.
−実施例２− 原料木材として実施例１と同様の杉の製材を用い、実施
例１と同様にして、圧縮された木材を得た。-Example 2- Using the same cedar lumber as in Example 1 as a raw material wood, a compressed wood was obtained in the same manner as in Example 1.
次に、同木材を、60℃に加熱されたリン酸二水素アンモ
ニウムNH4H2PO4の２モル／水１溶液中へ２時間浸漬し
た後、同液から取り出し、熱風乾燥させた。Then, the wood was immersed in a solution of ammonium dihydrogen phosphate NH 4 H 2 PO 4 of 2 mol / 1 water heated at 60 ° C. for 2 hours, then taken out of the solution and dried with hot air.
得られた含浸処理木材は、元寸法の90％にまで復元し、
その中心部にまで前記無機物が含浸されていた。The obtained impregnated wood is restored to 90% of its original size,
The inorganic material was impregnated even in the center thereof.
−実施例３− 原料木材として実施例１と同様の杉の製材を用い、実施
例１と同様にして、圧縮された木材を得た。-Example 3-A compressed lumber was obtained in the same manner as in Example 1 using the same cedar lumber as in Example 1 as the raw wood.
次に、同木材を、25℃のメチロールアクリルアミド２モ
ル／水１溶液中へ72時間浸漬した後、同液から取り出
し、マイクロ波で加熱乾燥させた。Next, the same wood was immersed in a solution of 2 mol of methylol acrylamide / 1 solution of water at 25 ° C. for 72 hours, then taken out from the same solution and dried by heating in a microwave.
得られた含浸処理木材は、元寸法の90％にまで復元、そ
の中心部にまで前記樹脂が含浸されていた。The obtained impregnated wood was restored to 90% of its original size, and the resin was impregnated even in the central portion.
−実施例４− 実施例３において、処理液としてメチロールアクリルア
ミド溶液の代わりに25℃のメチロールメラミン２モル／
水１溶液を含浸させるようにした以外は実施例３と同
様にして、含浸処理木材を得た。-Example 4- In Example 3, instead of the methylol acrylamide solution as the treatment liquid, methylol melamine 2 mol / 25 ° C at 25 ° C.
An impregnated treated wood was obtained in the same manner as in Example 3 except that one solution of water was impregnated.
得られた含浸処理木材は、元寸法の90％にまで復元し、
その中心部にまで前記樹脂が含浸されていた。The obtained impregnated wood is restored to 90% of its original size,
The resin was impregnated to the center thereof.
−実施例５− 実施例３において、浸漬処理した木材をマイクロ波で加
熱乾燥させる代わりに熱風乾燥させるようにした以外は
実施例３と同様にして、含浸処理木材を得た。-Example 5-The impregnated wood was obtained in the same manner as in Example 3 except that the wood subjected to the immersion treatment was dried with hot air instead of being heated and dried with microwaves.
得られた含浸処理木材は、元寸法の85％にまで復元し、
その中心部にまでメチロールアクリルアミドが含浸され
ていた。The impregnated wood obtained is restored to 85% of its original size,
The central portion was impregnated with methylol acrylamide.
−比較例１− 実施例１において、木材の圧縮処理を省くようにした以
外は実施例１と同様にして、染色液含浸処理木材を得
た。-Comparative Example 1-A dyeing solution-impregnated wood was obtained in the same manner as in Example 1 except that the compression treatment of wood was omitted.
得られた含浸処理木材は、その表層部の深さ2mm程度し
か染色されておらず、中心部にまでは染色液が含浸され
ていなかった。The obtained impregnated wood was dyed only at a depth of about 2 mm in the surface layer, and the dyeing solution was not impregnated into the central part.
本願発明によれば、加熱湿潤工程で木材を熱水中に浸漬
させることにより、次の圧縮工程で高い木材洗浄効果を
奏する。また、木材が圧縮された形状を保持したまま乾
燥されていることにより、簡易な装置を用いた場合で
も、木材の吸水による復元力を利用して処理液を木材内
部まで含浸させることができる。According to the present invention, by immersing wood in hot water in the heating and moistening step, a high wood washing effect is achieved in the next compression step. Further, since the wood is dried while keeping the compressed shape, even when a simple device is used, it is possible to impregnate the inside of the wood with the treatment liquid by utilizing the restoring force of the water absorption of the wood.
このため、木材の用途に応じて原料木材に含浸させる処
理液を適宜選択することによって、難燃性、寸法安定性
等の所望の性能を木材に充分に付与することができるよ
うになる。Therefore, it is possible to sufficiently impart desired properties such as flame retardancy and dimensional stability to the wood by appropriately selecting the treatment liquid with which the raw wood is impregnated according to the use of the wood.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 碓氷 宏明 大阪府門真市大字門真1048番地 松下電工 株式会社内 (72)発明者 小池 史郎 大阪府門真市大字門真1048番地 松下電工 株式会社内 (72)発明者 足立 有弘 大阪府門真市大字門真1048番地 松下電工 株式会社内 審査官 嶋矢 督 (56)参考文献 特開 昭57−199609（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroaki Usui 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Shiro Koike, 1048, Kadoma, Kadoma, Osaka Prefecture (72), Matsushita Electric Works, Ltd. (72) Inventor Arihiro Adachi 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works Co., Ltd. Examiner Masaru Shimaya (56) References JP 57-199609 (JP, A)
Claims (1)
る加熱湿潤工程と、 前記加熱湿潤工程で湿潤した前記木材を圧縮する圧縮工
程と、 前記圧縮工程で圧縮された形状を保持したまま前記木材
を乾燥させる圧縮形状保持工程と、 前記圧縮形状保持工程後に、前記木材に処理液を加熱状
態で含浸させる処理液含浸工程と、 前記処理液含浸工程後に、前記木材を乾燥させる乾燥工
程と、 を含む木材への処理液含浸方法1. A heating and moistening step of immersing a raw material wood in hot water to heat and moisten it, a compression step of compressing the wood moistened in the heating and moistening step, and a shape compressed in the compression step is retained. A compressed shape holding step of drying the wood as it is, a treatment liquid impregnation step of impregnating the wood with a treatment liquid in a heated state after the compressed shape holding step, and a drying step of drying the wood after the treatment liquid impregnation step And a method of impregnating wood with a treatment liquid
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2109419A JPH0720606B2 (en) | 1990-04-24 | 1990-04-24 | Method for impregnating wood with treatment liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2109419A JPH0720606B2 (en) | 1990-04-24 | 1990-04-24 | Method for impregnating wood with treatment liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH047101A JPH047101A (en) | 1992-01-10 |
| JPH0720606B2 true JPH0720606B2 (en) | 1995-03-08 |
Family
ID=14509770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2109419A Expired - Lifetime JPH0720606B2 (en) | 1990-04-24 | 1990-04-24 | Method for impregnating wood with treatment liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720606B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE510658C2 (en) * | 1995-02-24 | 1999-06-14 | Curt Lindhe | Ways to make impregnated wood products |
| SE9801366L (en) * | 1998-04-20 | 1999-10-21 | Curt Lindhe | Stained wood elements as well as ways of producing stained wood elements |
| JP2023089308A (en) * | 2020-03-18 | 2023-06-28 | 国立大学法人埼玉大学 | Fireproof wood and its manufacturing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57199609A (en) * | 1981-06-01 | 1982-12-07 | Iwakiri Yoshikane | Discoloration preventive working method for paulownia wood |
-
1990
- 1990-04-24 JP JP2109419A patent/JPH0720606B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH047101A (en) | 1992-01-10 |
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