JP2659158B2 - Plywood chemical treatment method - Google Patents
Plywood chemical treatment methodInfo
- Publication number
- JP2659158B2 JP2659158B2 JP34116092A JP34116092A JP2659158B2 JP 2659158 B2 JP2659158 B2 JP 2659158B2 JP 34116092 A JP34116092 A JP 34116092A JP 34116092 A JP34116092 A JP 34116092A JP 2659158 B2 JP2659158 B2 JP 2659158B2
- Authority
- JP
- Japan
- Prior art keywords
- veneer
- plywood
- adhesive
- treatment method
- chemical treatment
- 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
- 239000000126 substance Substances 0.000 title claims description 14
- 239000011120 plywood Substances 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 11
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 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 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 235000006173 Larrea tridentata Nutrition 0.000 description 1
- 244000073231 Larrea tridentata Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- JZAXBLMQBSQDJA-UHFFFAOYSA-N copper;naphthalen-1-ol Chemical compound [Cu].C1=CC=C2C(O)=CC=CC2=C1 JZAXBLMQBSQDJA-UHFFFAOYSA-N 0.000 description 1
- 229960002126 creosote Drugs 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachlorophenol Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- VKFFEYLSKIYTSJ-UHFFFAOYSA-N tetraazanium;phosphonato phosphate Chemical compound [NH4+].[NH4+].[NH4+].[NH4+].[O-]P([O-])(=O)OP([O-])([O-])=O VKFFEYLSKIYTSJ-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Veneer Processing And Manufacture Of Plywood (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、難燃剤、防虫剤、防腐
剤、寸法安定剤などの薬剤を合板に処理する方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating plywood with chemicals such as flame retardants, insect repellents, preservatives and dimensional stabilizers.
【０００２】[0002]
【従来の技術】従来、多孔質材料に薬剤を処理する方法
としては、多数の貫通孔が全面にあけられたパルプセメ
ント板の表面に合板が接着せられるとともに、同パルプ
セメント板の各貫通孔に発泡性難燃剤が一部充填されて
なる準不燃性建材（特開昭４９−６７２３）及び繊維に
従って形成された多数の割れを有するベニヤ単板を少な
くとも一枚用いて構成した合板であって、そのベニヤ単
板の割れに難燃剤を介入させた難燃合板（特開昭５４−
９５７１２）が知られている。2. Description of the Related Art Conventionally, as a method of treating a chemical into a porous material, a plywood is bonded to a surface of a pulp cement plate having a large number of through holes formed on the entire surface, and each through hole of the pulp cement plate is provided. Plywood comprising at least one veneer veneer having a plurality of cracks formed in accordance with a quasi-incombustible building material (JP-A-49-6723), which is partially filled with a foaming flame retardant. Flame retardant plywood in which a flame retardant is interposed in the cracks of the veneer veneer.
95712) is known.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、合板の製造
の際単板に生じるクラックに薬剤を浸透させる方法にお
いて、単板に貫通孔、割れなどを形成する工程を簡略化
した合板への薬剤処理方法を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention relates to a method for infiltrating a crack into a veneer during the production of the veneer with a chemical agent, the process for forming through holes and cracks in the veneer is simplified. An object of the present invention is to provide a method for treating a medicine.
【０００４】[0004]
【課題を解決するための手段】本発明によれば、含水率
が３０重量％以上の単板に接着剤を塗布して積層し、含
水状態で冷圧締して前記接着剤を硬化させた後、ホット
プレスで熱圧締処理することにより単板に生じるクラッ
クに薬剤を浸透させる合板の薬剤処理方法が提供され
る。According to the present invention, an adhesive is applied to a veneer having a water content of 30% by weight or more and laminated, and the adhesive is cured by cold pressing under a wet condition. Thereafter, a chemical treatment method for plywood is provided, in which the chemical is permeated into cracks generated in the veneer by hot pressing with a hot press.
【０００５】以下詳細に説明する。まず、水中にて保管
されていた原木を適宜長さに切断し、ロータリーレース
にて切削して適宜厚さの単板を得る。通常前記のような
水中にて保管されていた原木をロータリーレースで切削
した直後の単板には少なくとも３０重量％の水分が含ま
れている。The details will be described below. First, a raw wood stored in water is cut into appropriate lengths, and cut with a rotary lace to obtain a veneer having an appropriate thickness. Normally, a veneer immediately after cutting a log stored in water as described above by rotary lace contains at least 30% by weight of water.
【０００６】該単板に接着剤を塗布し、奇数枚繊維方向
が直交するように積層し、含水状態で冷圧締して前記接
着剤を硬化させた後、ホットプレスで熱圧締処理する。
接着剤としてはウレタン系接着剤が好ましい。接着剤の
塗布方法としてはスプレッダー、スプレー、エクストゥ
ルーダー、ロールコーターなどを用いることができる。
塗布量としては１００〜３００ｇ／ｃｍ2 程度が好まし
い。冷圧締の条件としては０〜４０℃、圧力５〜１５ｋ
ｇ／ｃｍ2 、時間５〜１２０分が好ましい。引き続いて
行われる熱圧締処理条件は温度１００〜１８０℃、圧力
０．５〜５ｋｇ／ｃｍ2 、時間２〜６０分が好ましい。[0006] An adhesive is applied to the veneer, the odd-numbered sheets are laminated so that the fiber directions are orthogonal to each other, and the adhesive is hardened by cold pressing in a water-containing state, and then hot-pressed by a hot press. .
As the adhesive, a urethane-based adhesive is preferable. As a method for applying the adhesive, a spreader, a spray, an extruder, a roll coater, or the like can be used.
The coating amount is preferably about 100 to 300 g / cm 2 . The conditions for cold pressing are 0-40 ° C and pressure 5-15k.
g / cm < 2 > and time 5 to 120 minutes are preferable. The subsequent hot-pressing conditions are preferably a temperature of 100 to 180 ° C., a pressure of 0.5 to 5 kg / cm 2 , and a time of 2 to 60 minutes.
【０００７】上記熱圧締処理により、積層接着された単
板が表面側から急激に乾燥するため、各単板の乾燥度合
いに応じて収縮率が異なり各単板に多数のクラックが生
じるものである。該クラックの生じた単板で構成された
合板に薬液を塗布するか、薬液槽内に前記合板を浸漬す
る。薬液の浸透を更に十分に行うため合板を減圧槽に入
れ薬液を浸透させた後加圧する方法を採用することがで
きる。Since the laminated and bonded veneers are rapidly dried from the surface side by the above-mentioned heat-pressing treatment, the shrinkage varies depending on the degree of drying of each veneer, and many cracks are generated in each veneer. is there. A chemical solution is applied to a plywood composed of a single veneer having the crack, or the plywood is immersed in a chemical solution tank. In order to more sufficiently penetrate the chemical solution, a method in which the plywood is put in a decompression tank to allow the chemical solution to penetrate, and then pressurized can be adopted.
【０００８】前記含水単板を直ちに熱圧締処理をする
と、単板中の水分が蒸気化し、その蒸気圧で接着剤が木
口面から噴出するので接着不良を起こすものである。そ
れゆえ、含水単板を含水状態で冷圧締して前記接着剤を
硬化させた後熱圧締処理を行うのである。If the water-containing veneer is immediately hot-pressed, the moisture in the veneer is vaporized, and the vapor pressure causes the adhesive to squirt from the lip surface, resulting in poor bonding. Therefore, the water-containing veneer is cold-pressed in a water-containing state to cure the adhesive, and then hot-pressing is performed.
【０００９】本発明において用いる薬剤としては、ホウ
砂、ホウ酸、第２リン酸アンモニウムなどの難燃剤、ホ
ウ酸、弗化ソーダなどの防虫剤、ペンタクロール・フェ
ノール、カッパー・ナフトール、クレオソートなどの防
腐剤、ポリエチレングリコール、フェノールなどの寸法
安定剤などが用いられる。The chemicals used in the present invention include flame retardants such as borax, boric acid and ammonium diphosphate, insect repellents such as boric acid and sodium fluoride, pentachlor phenol, copper naphthol, creosote and the like. And dimensional stabilizers such as polyethylene glycol and phenol.
【００１０】[0010]
【発明の効果】以上述べたごとく本発明の合板の薬剤処
理方法は、合板の製造工程において単板に発生するクラ
ックに薬剤を浸透させるものであるため、貫通孔あるい
は割れなどを形成する工程を省略することができるもの
である。As described above, the chemical treatment method for plywood according to the present invention involves penetrating the chemical into cracks generated in veneer during the manufacturing process of plywood. It can be omitted.
Claims (1)
を塗布して積層し、含水状態で冷圧締して前記接着剤を
硬化させた後、熱圧締処理により単板に生じるクラック
に薬液を浸透させることを特徴とする合板の薬剤処理方
法。1. An adhesive is applied to a veneer having a water content of 30% by weight or more and laminated, and the adhesive is cured by cold-pressing in a water-containing state to form a veneer by hot pressing. A chemical treatment method for plywood, characterized in that a chemical solution is caused to penetrate cracks that occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34116092A JP2659158B2 (en) | 1992-11-26 | 1992-11-26 | Plywood chemical treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34116092A JP2659158B2 (en) | 1992-11-26 | 1992-11-26 | Plywood chemical treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06155407A JPH06155407A (en) | 1994-06-03 |
| JP2659158B2 true JP2659158B2 (en) | 1997-09-30 |
Family
ID=18343810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34116092A Expired - Lifetime JP2659158B2 (en) | 1992-11-26 | 1992-11-26 | Plywood chemical treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2659158B2 (en) |
-
1992
- 1992-11-26 JP JP34116092A patent/JP2659158B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06155407A (en) | 1994-06-03 |
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