JPH0365301A - Bleaching technique for veneer plywood - Google Patents
Bleaching technique for veneer plywoodInfo
- Publication number
- JPH0365301A JPH0365301A JP20297789A JP20297789A JPH0365301A JP H0365301 A JPH0365301 A JP H0365301A JP 20297789 A JP20297789 A JP 20297789A JP 20297789 A JP20297789 A JP 20297789A JP H0365301 A JPH0365301 A JP H0365301A
- Authority
- JP
- Japan
- Prior art keywords
- plywood
- veneer
- boards
- hydrogen peroxide
- peroxide solution
- 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.)
- Pending
Links
- 239000011120 plywood Substances 0.000 title claims abstract description 38
- 238000004061 bleaching Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007844 bleaching agent Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 101100396994 Drosophila melanogaster Inos gene Proteins 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
イ 産業上の利用分野
本発明は、ベニヤ合板を用途に応じ、或は商品価値を高
めるべく、その所望面を漂白処理するベニヤ合板の漂白
技法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bleaching technique for veneer plywood in which a desired surface of the veneer plywood is bleached in order to meet the purpose of the veneer plywood or to increase its commercial value.
ロ 従来技術
木材の漂白には専ら過酸化水素溶液が利用されているが
、ベニヤ合板の場合、従来はベニヤ単板を過酸化水素溶
液に浸漬させて漂白し、その漂白されたベニヤ単板が表
面になるようにのり付け仕組みし、加熱圧着して製品化
するか、既に製品化されたベニヤ合板に過酸化水素を作
用させて漂白する技術があった。B. Conventional technology A hydrogen peroxide solution is exclusively used to bleach wood, but in the case of veneer plywood, conventionally the veneer veneer was bleached by immersing it in a hydrogen peroxide solution, and the bleached veneer veneer was bleached. There was a technology that involved gluing the material to the surface and then heat-pressing it to make it into a product, or applying hydrogen peroxide to the already commercialized plywood and bleaching it.
ハ 発明が解決しようとする課題
上記従来の漂白処理技術においては、過酸化水素溶液を
暖めて反応速度を高めたり、温風を吹き付けて水分を蒸
発させるなど多くの熱エネルギーを必要とするので、省
エネルギ一対策が望まれている。C. Problems to be Solved by the Invention The conventional bleaching technology described above requires a lot of thermal energy, such as heating the hydrogen peroxide solution to increase the reaction rate and blowing hot air to evaporate water. Energy saving measures are desired.
二 課題を解決するための手段
本発明は、ベニヤ合板製造の過程において、ホットプレ
ス機が使用されることに着目し、そのホットプレス機で
発生する熱エネルギーの有効利用を図り、合理的に漂白
処理すべく鋭意研究の結果開発した漂白技法であって、
その構成は、のり付け仕組みされたベニヤ単板をホット
プレス機で加熱圧着して一枚の合板に形成直後、その合
板の所望面へ過酸化水素溶液を塗布して所望面を漂白処
理することにある。2. Means for Solving the Problems The present invention focuses on the fact that a hot press machine is used in the process of manufacturing veneer plywood, and aims to effectively utilize the thermal energy generated by the hot press machine to bleach it rationally. A bleaching technique developed as a result of intensive research to treat
Its structure is to heat and press glued veneer veneers using a hot press machine to form a single piece of plywood, and then immediately apply a hydrogen peroxide solution to the desired surface of the plywood to bleach the desired surface. It is in.
ホ 作用
過酸化水素溶液を塗布する時期が、ホットプレスで加え
られ、た熱が残っている合板形成直後であるから、塗布
された過酸化水素は素早く反応して合板の表面を漂白し
、直ちに蒸発してしまう。E. The time to apply the hydrogen peroxide solution is immediately after the plywood is formed, when the heat from the hot press remains, so the applied hydrogen peroxide reacts quickly and bleaches the surface of the plywood, immediately It evaporates.
へ 実施例
本発明に係るベニヤ合板の漂白技法の実施例を図面に基
し１て説明する９
図面＋、Ｊ１、右からりフタ−１、ローダ−２、ホット
プレス機３、アンローダ−４、コンベア袋Ｒ５、リフタ
ー６が順に並んだホラしブレス工程を行なう前後の装置
を含むベニヤ合板の製造ラインな示したもので、コンベ
ア装置５の上方に【よ、過酸化水素溶液を満たした漂白
液タンク７から過酸化水素溶液の供給を受け、コンベア
装ａ５Ｊ−へその過酸化水素溶液を吹き付けるノズル８
．８・・が備えられていると共に、下方にはコンベア装
置５から落下した過酸化水素溶液を受けるための受けｆ
ｆ１９が設Ｃづられている。Example 9 An example of the bleaching technique for veneer plywood according to the present invention will be explained based on the drawings 9 Drawing +, J1, right-side lid 1, loader 2, hot press machine 3, unloader 4, This is a veneer plywood manufacturing line that includes equipment before and after the rolling press process, in which conveyor bags R5 and lifters 6 are lined up in order. Nozzle 8 receives hydrogen peroxide solution from tank 7 and sprays the hydrogen peroxide solution onto conveyor device a5J-
．． 8..., and a receiver f below for receiving the hydrogen peroxide solution that has fallen from the conveyor device 5.
f19 is set to C.
リフター１は昇降動するテーブルｌａを備え、そのテー
ブルｌａ上には、所定の手法によってのり付け仕組みき
れたベニヤ単板ａが待機しており、ローダ−２の台棚へ
順に送り込まわる。The lifter 1 is equipped with a table la that moves up and down, and on the table la, veneer veneers a, which have been glued together using a predetermined method, are waiting and are sequentially fed to the shelf of the loader 2.
ローダ−２の全棚が単板ａで満たされたら、それらは−
斉にホットプレス機３へ送らね、加熱加圧処理さＡする
。そ第１に止って単板は接着されてベニヤ合板へに形成
され、アン口・−ダ・−福へ送り出きねる。アフロ・−
グー４からは一枚づつリフター６へ送り出さ第１、そこ
からクンベア装置５で次の工程へと運ば２する。ベニヤ
合板Ａは、コンベア装置５で搬送きれる途中、ノズル８
８・・から噴出する過酸化水素溶液を浴び、上面は酸化
漂白きれる、ここでは１０％濃度の過酸化水素溶液が用
いられるが、過酸化水素溶液の濃度は３＝２０％の範囲
で調整できる。又塗布機は、ベニヤ合板の表面が−・様
に濡れ、若干したたり落ちる程度がよい。ボッドブＩノ
ス機３から搬ＩＢ；＄れ、コンベア装置５」二を搬送さ
れるベニヤ合板Ａは、少ｔ＜＆も７０℃の余熱を持ち、
よって過酸化水素が木材と反応するスピードは早く、而
もすみやかに蒸発してしまう。When all the shelves of loader 2 are filled with veneers a, they are -
They are sent all at once to the hot press machine 3 and subjected to heat and pressure treatment A. First of all, the veneers are glued together and formed into plywood, which cannot be shipped to the factory. Afro-
From the goo 4, the sheets are sent out one by one to a lifter 6, and from there, they are transported to the next step by a Kumbea device 5. While the plywood A is being conveyed by the conveyor device 5, the nozzle 8
The upper surface is oxidized and bleached by being exposed to the hydrogen peroxide solution spouted from 8. Here, a 10% hydrogen peroxide solution is used, but the concentration of the hydrogen peroxide solution can be adjusted within the range of 3 = 20%. . Also, the coating machine should be used so that the surface of the veneer plywood gets wet and slightly drips. The veneer plywood A that is transported from the bodb Inos machine 3 to the conveyor device 5 has a residual heat of 70°C,
Therefore, hydrogen peroxide reacts with wood quickly and evaporates quickly.
よって漂白処理のためにわざわざ加熱して反応速度を皐
めたり、ヒータで乾燥きぜたりする必要も無（、放置し
ておくだけで漂白処理を終える。漂白処理が終了１）た
ら、次の工程である研磨、耳揃え作業を経て製品化きれ
る。Therefore, there is no need to heat the product to speed up the reaction rate or use a heater to dry it. It can be made into a product after the polishing and selvedge alignment steps are completed.
漂出処理されたベニヤ合板は、そのまま建造物に利用し
ても良いし、例えばそれを合板こしてその表面にせん、
松等の箔状単板を貼り合わせると、合板の木目が目立た
ず貼り合わせた素材の特性が充分生かされた美しい銘木
合板に仕上がるのである。The veneer plywood that has been washed away can be used as is for buildings, or it can be used, for example, by straining the plywood and applying it to the surface.
When foil-like veneers of pine or other wood are pasted together, the result is a beautiful precious wood plywood that makes full use of the characteristics of the pasted materials, without making the grain of the plywood noticeable.
尚前記漂白処理剤たして使用する過酸化水素溶液唸酸性
が強いのでアルカリ質を添加したり、仕上りが良好とな
るように触媒を混入させることが望ましい。Since the hydrogen peroxide solution used as the bleaching agent has strong acidity, it is desirable to add an alkaline substance or to mix a catalyst in order to obtain a good finish.
上記実施例では過酸化水素溶液を塗布する装置をベニヤ
合板製造ラインのホットプレス機に隣接し、連続して行
なう場合を説明したが、ホットプレス機で加熱加圧した
直後であれば、別のラインに移動して行なうこともでき
る。In the above example, a case was described in which a device for applying hydrogen peroxide solution was placed adjacent to a hot press machine on a veneer plywood production line and the process was carried out continuously. You can also move to the line.
ト 効果
本発明によれば、ホットプレス機で加えらオ］た熱エネ
ルギーが残存している時期を狙って過酸化水素溶液を塗
布するので、過酸化水素の酸化漂出作用が促進され、而
も乾燥のため熱エネルギガ奪われて合板目体の冷却を早
める結果ともなる。よって製造及び漂白処理時間も短縮
され而も省エネルギーに役立つのでその実益は多大であ
る。G. Effect According to the present invention, since the hydrogen peroxide solution is applied at a time when the thermal energy applied by the hot press machine remains, the oxidative drifting action of hydrogen peroxide is promoted, and Also, due to drying, heat energy is taken away, resulting in faster cooling of the plywood body. Therefore, the manufacturing and bleaching processing times are shortened, and it also helps to save energy, so the practical benefits are great.
図面は本発明に係るベニヤ合板の漂白技法を実施する工
程の前後装置を含むベニヤ合板の製造ライン装置を示し
たもので、第１図番ｊ装置の平面図、第２図は装置の正
面図である。
■・・リフター １８・・テーブル、２・・ローダ−３
・・ホットブＩ／ス機、４・・アンローダ−５・・コン
ベア装置、６・・リフタ′ｌ−□・漂白液タンク、８・
・ノズル、ａ・・ベニヤ単板、Ａ・・ベニヤ合板The drawings show a veneer plywood manufacturing line equipment including equipment before and after the process of implementing the veneer plywood bleaching technique according to the present invention. It is. ■...Lifter 18...Table, 2...Loader-3
・・Hot bath I/S machine, 4・・Unloader 5・・Conveyor device, 6・・Lifter'l‐□・Bleach solution tank, 8・・
・Nozzle, a...Plywood veneer, A...Plywood plywood
Claims (1)
熱圧着して一枚の合板に形成直後、その合板の所望面へ
過酸化水素溶液を塗布して所望面を漂白処理するベニヤ
合板の漂白技法。A bleaching technique for veneer plywood that involves applying a hydrogen peroxide solution to the desired surface of the plywood to bleach the desired surface immediately after the glued veneer veneer is heated and pressed using a hot press machine to form a single plywood sheet. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20297789A JPH0365301A (en) | 1989-08-04 | 1989-08-04 | Bleaching technique for veneer plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20297789A JPH0365301A (en) | 1989-08-04 | 1989-08-04 | Bleaching technique for veneer plywood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365301A true JPH0365301A (en) | 1991-03-20 |
Family
ID=16466286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20297789A Pending JPH0365301A (en) | 1989-08-04 | 1989-08-04 | Bleaching technique for veneer plywood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365301A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6531190B1 (en) | 1999-04-29 | 2003-03-11 | Altonic Oy | Control method for quality factors of the surface of whole wood |
| JP3197206U (en) * | 2015-01-27 | 2015-04-30 | 敏男 青木 | Bleached plywood manufacturing system and bleached plywood |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS621501A (en) * | 1985-06-27 | 1987-01-07 | Noda Plywood Mfg Co Ltd | Manufacture of fiber board |
-
1989
- 1989-08-04 JP JP20297789A patent/JPH0365301A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS621501A (en) * | 1985-06-27 | 1987-01-07 | Noda Plywood Mfg Co Ltd | Manufacture of fiber board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6531190B1 (en) | 1999-04-29 | 2003-03-11 | Altonic Oy | Control method for quality factors of the surface of whole wood |
| JP3197206U (en) * | 2015-01-27 | 2015-04-30 | 敏男 青木 | Bleached plywood manufacturing system and bleached plywood |
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