JPH01136702A - Manufacture of improved wood - Google Patents
Manufacture of improved woodInfo
- Publication number
- JPH01136702A JPH01136702A JP29643487A JP29643487A JPH01136702A JP H01136702 A JPH01136702 A JP H01136702A JP 29643487 A JP29643487 A JP 29643487A JP 29643487 A JP29643487 A JP 29643487A JP H01136702 A JPH01136702 A JP H01136702A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- anion
- timber
- insoluble
- 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.)
- Granted
Links
- 239000002023 wood Substances 0.000 title claims description 110
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000126 substance Substances 0.000 claims abstract description 58
- 150000001450 anions Chemical class 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 150000001768 cations Chemical class 0.000 claims abstract description 16
- 238000005470 impregnation Methods 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- -1 aluminum cations Chemical class 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 150000001342 alkaline earth metals Chemical class 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 150000002484 inorganic compounds Chemical class 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 239000003063 flame retardant Substances 0.000 description 13
- 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 12
- 238000000034 method Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000002386 leaching Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 5
- 229960002645 boric acid Drugs 0.000 description 5
- 235000010338 boric acid Nutrition 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 239000000077 insect repellent Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002421 anti-septic effect Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 235000007173 Abies balsamea Nutrition 0.000 description 1
- 101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241001340534 Eido Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241001142131 Leptidea sinapis Species 0.000 description 1
- 241000218685 Tsuga Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- UKFWSNCTAHXBQN-UHFFFAOYSA-N ammonium iodide Chemical compound [NH4+].[I-] UKFWSNCTAHXBQN-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 125000000129 anionic group Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 150000001649 bromium compounds Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910052800 carbon group element Inorganic materials 0.000 description 1
- 150000001724 carbon group elements Chemical class 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/32—Mixtures of different inorganic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/04—Impregnating in open tanks
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
この発明は、建材等として用いられる改質木材の製法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for producing modified wood used as building materials and the like.
木材の改質法として、不溶性不燃性無機物を木材中に生
成させることにより、難燃性（防火性）。As a method of modifying wood, it is made flame retardant (fire retardant) by producing insoluble and nonflammable inorganic substances in wood.
寸法安定性、防腐・防虫性および力学的強度等を付与す
る方法が研究、開発されている。Methods of imparting dimensional stability, antiseptic/insect repellent properties, mechanical strength, etc. are being researched and developed.
一般に、木材に難燃性を付与するための改質方法は、以
下のような難燃化のメカニズムに基づいて大別されてい
る。In general, modification methods for imparting flame retardancy to wood are broadly classified based on the following flame retardant mechanisms.
（ａｌ 無機物による被覆
（ｂ） 炭化促進
（Ｃ） 発炎燃焼における連鎖反応の阻害（ｄ）
不燃性ガスの発生
（ｅ） 分解・結晶水放出による吸熱（ｆｌ 発泡
層による断熱
ここで、木材に不溶性不燃性無機物を含ませるという改
質方法は、とりわけ、以下に説明する上記（ａｌないし
くｄ）による効果を期待したものである。(al Coating with inorganic material (b) Promotion of carbonization (C) Inhibition of chain reaction in flaming combustion (d)
Generation of non-flammable gas (e) Heat absorption due to decomposition and release of water of crystallization (fl) Insulation by foam layer Here, the modification method of impregnating wood with insoluble non-flammable inorganic substances is particularly important for the above (al or We are hoping for the effect of d).
しかも、この不溶性不燃性無機物は、いったん木材細胞
内に定着させられれば、それ以降木材から熔は出す恐れ
が少ないため、それらの効果が薄れるといった心配も小
さく、有効な方法である。In addition, once this insoluble, nonflammable inorganic substance is fixed in the wood cells, there is little risk of molten coming out of the wood, so there is little worry that the effects will be diminished, making it an effective method.
上記において、（ａ）の無機物による被覆とは、たとえ
可燃性の材料であっても、それを不燃性の無機物と適当
な配合比で複合させることにより難燃化させうる、とい
うことである。たとえば、従来知られている木片セメン
ト板は、可燃性木材を不燃性のセメントと約１対１の重
量配合比で混合し、板上に成形されたものであって、Ｊ
ＩＳ規格により準不燃材料として認められている。In the above, (a) coating with an inorganic substance means that even if the material is flammable, it can be made flame retardant by combining it with a non-flammable inorganic substance at an appropriate blending ratio. For example, the conventionally known wood chip cement board is made by mixing combustible wood with non-combustible cement at a weight ratio of about 1:1 and forming it onto a board.
It is recognized as a quasi-noncombustible material by IS standards.
（ｂｌの炭化促進とは、以下のようなメカニズムである
。すなわち、木材は、加熱されると熱分解して可燃性ガ
スを発生し、これが発炎燃焼するわけであるが、このと
きリン酸あるいはホウ酸が存在すると木材の熱分解すな
わち炭化が促進され、速やかに炭化層が形成される。こ
の炭化層は断熱層として作用し、難燃効果を与えるので
ある。したがって、前記不溶性不燃性無機物がリン酸成
分あるいはホウ酸成分を含む場合は、この前記改質木材
における難燃効果は一層高いものとなる。(The mechanism behind carbonization promotion of BL is as follows. In other words, when wood is heated, it thermally decomposes and generates flammable gas, which flames and burns. At this time, phosphoric acid Alternatively, the presence of boric acid promotes the thermal decomposition, or carbonization, of wood, rapidly forming a carbonized layer.This carbonized layer acts as a heat insulating layer and provides a flame retardant effect.Therefore, the insoluble and nonflammable inorganic material When the wood contains a phosphoric acid component or a boric acid component, the flame retardant effect of the modified wood will be even higher.
（Ｃ）の発炎燃焼における連鎖反応の阻害とは、ハロゲ
ンに寄与されるものであり、炎中でのラジカル的な酸化
反応においてハロゲンが連鎖移動剤として作用する結果
、酸化反応が阻害されて難燃効果が生じるというメカニ
ズムである。したがって、不溶性不燃性無機物がハロゲ
ンを含むものであれば、こうした効果も得られるのであ
る。The inhibition of the chain reaction in flaming combustion (C) is contributed by halogen, and as a result of the halogen acting as a chain transfer agent in the radical oxidation reaction in the flame, the oxidation reaction is inhibited. This is the mechanism by which the flame retardant effect occurs. Therefore, if the insoluble nonflammable inorganic substance contains a halogen, these effects can also be obtained.
最後に、（ｄ）の不燃性ガスの発生について説明する。Finally, the generation of nonflammable gas (d) will be explained.
これは、炭酸塩、アンモニウム塩等の化合物は熱分解に
より炭酸ガス、亜硫酸ガス、ハロゲン化水素等の不燃性
ガスを発生するが、これらのガスが可燃性ガスを希釈し
て燃焼を妨げるという効果である。したがって、不溶性
不燃性無機物が炭酸塩等の上記不燃性ガス類を発生しう
るちのを含んでいれば、このメカニズムによる難燃化効
果も併せて得られるのである。This is because compounds such as carbonates and ammonium salts generate nonflammable gases such as carbon dioxide, sulfur dioxide, and hydrogen halides through thermal decomposition, but these gases dilute flammable gases and prevent combustion. It is. Therefore, if the insoluble nonflammable inorganic substance contains a substance that generates the above-mentioned nonflammable gases, such as carbonate, a flame retardant effect due to this mechanism can also be obtained.
ついで、この不溶性不燃性無機物を含む木材の防腐・防
虫効果について説明する。菌類が木材を腐敗させる際は
、まず、菌糸が木材内腔中に侵入していくのであるが、
この木材内腔中に異物が存在すると菌糸の侵入が妨げら
れ、結果的に腐敗されにく（なる。この木材内腔中の異
物は、特に防腐効果のある薬剤（防腐剤）等である必要
はなく、菌類の養分になるものでさえなければ、何であ
ってもよいのである。防虫についても防腐と同様であっ
て、薬剤効果があるものであればそれにこしたことはな
いし、また、虫に対して消化性の悪いもの、消化しない
もの、あるいは、忌避作用のあるものが好ましい。した
がって、そのような条件を満たしている不溶性不燃性無
機物を木材内腔中に含ませれば、木材の防腐・防虫に効
果的なのである。Next, the antiseptic and insect repellent effects of wood containing this insoluble, noncombustible inorganic substance will be explained. When fungi cause wood to rot, mycelium first invades the inner cavity of the wood.
The presence of foreign matter in the internal cavity of the wood prevents mycelium from entering, and as a result, it becomes difficult to rot.The foreign matter in the internal cavity of the wood must be a particularly effective agent (preservative), etc. Insect repellents are the same as preservatives, as long as they have a medicinal effect, and anything is fine as long as they are not nutrients for fungi. It is preferable to use a material that is poorly digestible, non-digestible, or has a repellent action.Therefore, if an insoluble, nonflammable inorganic material that satisfies these conditions is included in the wood cavity, it will prevent wood from rotting.・It is effective in repelling insects.
さらに、木材の寸法安定化および力学的強化については
、木材を水で膨潤させておき、その状態で木材細胞壁中
に何らかの物質を固定できれば、バルク効果により上記
両効果が得られる。すなわち、木材細胞壁内が充填材に
よって占められていれば、木材自体の膨張あるいは収縮
が起こりにくくなり、同時に、特に硬度をはじめとする
各種力学的強度も向上するのである。ここで、固定物質
としては、水に溶けにくい無機物も使いうるため、不溶
性不燃性無機物を木材細胞壁中に固定すれば、その効果
が得られるのである。Furthermore, regarding dimensional stabilization and mechanical strengthening of wood, if wood is swollen with water and some substance can be fixed in the wood cell walls in that state, both of the above effects can be obtained due to the bulk effect. In other words, if the inside of the wood cell wall is occupied by the filler, the wood itself is less likely to expand or contract, and at the same time, various mechanical strengths, particularly hardness, are improved. Here, as the fixing substance, inorganic substances that are difficult to dissolve in water can also be used, so the effect can be obtained by fixing an insoluble, nonflammable inorganic substance in the wood cell wall.
以上のように、不溶性不燃性無機物を含ませるという方
法は、難燃化をはじめとする木材の改質において非常に
有効であるが、下記のような問題を有していた。As described above, the method of incorporating insoluble nonflammable inorganic substances is very effective in modifying wood, including flame retardation, but it has the following problems.
一般に、たとえば不溶性不燃性無機物をそのまま水等の
溶媒に分散させ、この分散液（処理液）中に木材を浸漬
して液を木材中に浸透させようとしても、浸透していく
のはほとんど水等の溶媒のみとなってしまう。というの
も、処理液が木材中に浸透していく際に通過すべき通路
のうち、最も狭い部分はピットメンプランであるが、こ
こにおける空隙径が約０．１μ層であるのに対し、分散
粒子である不溶性不燃性無機物の粒径は、通常、０．１
ｐｍよりもかなり大きいからなのである。Generally, for example, if an insoluble, nonflammable inorganic substance is directly dispersed in a solvent such as water, and wood is immersed in this dispersion (treatment liquid) to allow the liquid to penetrate into the wood, most of the material that penetrates is water. This results in only solvents such as This is because the narrowest part of the passage through which the treatment liquid permeates into the wood is the pit membrane run, and the pore diameter here is approximately 0.1μ layer. The particle size of the insoluble, nonflammable inorganic particles that are dispersed particles is usually 0.1
This is because it is considerably larger than pm.
そこで、発明者らは、先に、この問題を解決できる方法
を開発している。すなわち、混合することにより反応し
て不溶性不燃性無機物を生じさせるカチオンおよびアニ
オンを別々に含ませた２種の水溶液を用意し、両者を順
次原料木材に含浸させて木材内部で両イオンを反応させ
、不溶性不燃性無機物を定着させるようにする改質木材
の製法である（特願昭６Ｏ−０８９４２３）。このよう
にすれば、極めて多量の不溶性不燃性無機物を効率よく
木材中に含ませることができるのであるが、一方で、現
在も、以下の諸問題が残されている通常、浸漬処理を行
う場合、２回目以降の浸漬時に、先に木材内に含浸させ
られている成分が外部に流出し、木材内のみならず木材
外、すなわち、処理浴中においても反応して不溶性不燃
性無機物が生成してしまう、という問題があった。これ
らは浴を汚染し、また、薬剤の使用量を増大させる結果
にもつながるため、この木材外での生成はできるだけ抑
え、はぼ木材内のみに充分な量の不溶性不燃性無機物を
生成させることが好ましいのである。Therefore, the inventors have first developed a method that can solve this problem. That is, two types of aqueous solutions are prepared that separately contain cations and anions that react to produce insoluble, nonflammable inorganic substances when mixed, and both are sequentially impregnated into raw wood to cause both ions to react inside the wood. This is a method for producing modified wood in which insoluble, nonflammable inorganic substances are fixed (Japanese Patent Application No. 6O-089423). In this way, it is possible to efficiently incorporate extremely large amounts of insoluble, non-combustible inorganic substances into the wood. However, the following problems still remain when using the usual soaking treatment. During the second and subsequent immersion, the components that were previously impregnated into the wood flow out and react not only inside the wood but also outside the wood, that is, in the treatment bath, producing insoluble and nonflammable inorganic substances. There was a problem with this. Since these contaminate the bath and lead to an increase in the amount of chemicals used, it is important to suppress the generation of these substances outside the wood as much as possible, and to generate a sufficient amount of insoluble and nonflammable inorganic substances only within the wood. is preferable.
そのために、これまで、後から含浸させる処理液の濃度
を、先に含浸させた処理液濃度と同等もしくはそれ以上
にしたり、含浸時間を充分にとったりする等の工夫がな
されてきた。しかし、このような条件で木材を処理する
と、後から含浸させられる成分は、木材中に先に含まれ
ている成分と反応して不溶性不燃性無機物を形成するた
めに必要な量を越えて、どうしても過剰に注入されるよ
うになり、これが別種の問題を引き起こしていた。すな
わち、このようにして木材中に残される未反応のイオン
、および、副生成物としての可溶な無機物は、吸水、吸
湿量が多く、また、その種類によっては潮解性を示す場
合もあるので、これらが木材中にあまり多量に残存する
と、木材の吸水、吸湿性が高くなりすぎてしまう。する
と、得られた改質木材はベタ付き感のあるものになり、
高湿条件下では木材表面が水に濡れたような状態になっ
てしまうため、建材等として使用するには適当とはいえ
ないのである。To this end, so far, efforts have been made to make the concentration of the treatment liquid for later impregnation equal to or higher than the concentration of the treatment liquid for earlier impregnation, or to provide a sufficient impregnation time. However, when wood is treated under these conditions, the components that are subsequently impregnated exceed the amount necessary to react with the components previously contained in the wood to form insoluble, nonflammable minerals. Inevitably, too much was injected, which caused a different kind of problem. In other words, the unreacted ions left in the wood and the soluble inorganic substances as by-products absorb a large amount of water, and depending on the type, may exhibit deliquescent properties. If too large amounts of these remain in the wood, the water absorption and hygroscopicity of the wood will become too high. As a result, the resulting modified wood has a sticky feel,
Under high humidity conditions, the surface of the wood becomes wet, making it unsuitable for use as building materials.
したがって、通常は、含浸処理後に溶脱処理を行って、
木材内部に残存しているこれらの可溶性成分を除去し、
木材の耐水性や耐候性を高めるようにしていた。この溶
脱処理は、後処理浴を設けて水中に長時間浸漬させたり
、流水中に放置して洗浄したりして実施される。Therefore, leaching treatment is usually performed after impregnation treatment.
Removes these soluble components remaining inside the wood,
They tried to improve the water resistance and weather resistance of the wood. This leaching treatment is carried out by providing a post-treatment bath and immersing the material in water for a long time, or leaving it in running water for washing.
他方、改質木材の外観、すなわち木質感、という点に関
しては、処理後、乾燥させられると、木材表面付近に生
成した不溶性不燃性無機物が白く析出して木材全体が粉
をふいたように白くなってしまい、外観が損なわれると
いう問題もあった。On the other hand, regarding the appearance of modified wood, that is, its wood texture, when it is dried after treatment, the insoluble and nonflammable inorganic substances generated near the wood surface precipitate white, making the entire wood white as if it had been dusted with powder. There was also the problem that the appearance was damaged.
そのためにも、従来は、処理後の木材に洗浄処理を施し
、表面部分の無機物を除去して外観を保つことを行って
きたのである。To this end, in the past, treated wood was washed to remove inorganic substances from the surface to maintain its appearance.
しかしながら、新たな課題として、上記の溶脱処理によ
り除去される可溶性無機物のなかには、その種類により
、やはり不燃性であって、木材の難燃化はもちろん、力
学的強化１寸法安定化等にも寄与できる成分も多く含ま
れているため、この可溶性の無機物を単に除去してしま
っては、これらの有効な成分が全く無駄になり、薬剤が
多量に消費されて製造コストの上昇を招くばかりでなく
、木材の上記性能もその分低下してしまう、ということ
がある。これは、今日、力学的強度１寸法安定性、とり
わけ、難燃性等においてますます高い水準が要求され、
それに対応しきれずにいる現状を鑑みると、非常に重要
な課題である。一方で、長時間行われる溶脱処理のため
の時間の損失も大きいし、必要な水の費用も軽視できな
い。However, a new issue is that some of the soluble inorganic substances removed by the above-mentioned leaching treatment are nonflammable depending on the type, and they contribute not only to flame retardation of wood but also to mechanical reinforcement, dimensional stabilization, etc. If these soluble inorganic substances are simply removed, these effective ingredients will be completely wasted, and a large amount of the drug will be consumed, leading to an increase in manufacturing costs. , the above-mentioned performance of the wood may be reduced accordingly. Today, higher standards are required in terms of mechanical strength, dimensional stability, and especially flame retardancy.
Considering the current situation where we are unable to fully respond to this issue, this is an extremely important issue. On the other hand, there is a large loss of time due to the long leaching process, and the cost of the water required cannot be underestimated.
以上のように、従来は、優れた性能を有する改質木材を
得るために、各種のいずれも長時間にわたる諸過程を必
要とし、多量の薬剤と時間を消費してきた。よって、改
質木材の品質のみならず、処理効率という点に関しても
、さらに改良が望まれているのが現状である。As described above, conventionally, in order to obtain modified wood with excellent performance, various processes have been required over a long period of time, consuming large amounts of chemicals and time. Therefore, there is currently a need for further improvement not only in the quality of modified wood but also in terms of treatment efficiency.
以上の事情に鑑み、この発明は、改質処理に必要な薬剤
を無駄なく利用して木材中に多量の不溶性不燃性無機物
を定着させ、防腐・防虫性、力学的強度１寸法安定性、
吸湿性等に優れるとともに、高度に優れた難燃性を備え
、外観的にも良好な改質木材を、効率よく製造する方法
を提供することを目的とする。In view of the above circumstances, the present invention utilizes the chemicals necessary for the modification treatment without wasting it, fixes a large amount of insoluble, non-combustible inorganic substances in the wood, and achieves antiseptic and insect repellent properties, mechanical strength, dimensional stability,
The purpose of the present invention is to provide a method for efficiently producing modified wood that has excellent moisture absorption properties, highly flame retardant properties, and good appearance.
上記目的を達成するため、この発明は、改質しようとす
る原料木材に対し、混合することにより不溶性不燃性無
機物を生じさせる２種以上のアニオン含有処理液および
カチオン含有処理液を個々に含浸させて木材組織内に前
記無機物を生成・定着させるようにする改質木材の製法
であって、前記両処理液を浸漬含浸により交互に合計３
回以上含浸させるようにし、かつ、最後の含浸を先に使
用したアニオン含有処理液よりも高濃度のアニオン含有
処理液により行うことを特徴とする改質木材の製法を要
旨とする。In order to achieve the above object, the present invention impregnates raw material wood to be modified with two or more types of anion-containing treatment liquid and cation-containing treatment liquid that produce insoluble, non-flammable inorganic substances when mixed. A method for producing modified wood in which the above-mentioned inorganic substances are produced and fixed in the wood structure by applying both the above-mentioned treatment solutions alternately by dipping and impregnating a total of 3 times.
The gist of the present invention is a method for producing modified wood characterized by impregnating the wood more than once and performing the final impregnation with an anion-containing treatment solution having a higher concentration than the previously used anion-containing treatment solution.
以下に、この発明の詳細な説明する。The present invention will be explained in detail below.
この発明に用いられる改質のための原料木材としては特
に限定はされず、原木丸太、製材品、スライス単板１合
板等が例示できる。それらの樹種についても何ら限定さ
れることはない。The raw material wood for modification used in this invention is not particularly limited, and examples thereof include raw logs, sawn timber products, and sliced veneer plywood. There are no limitations on these tree species either.
含浸に先立ち、原料木材に飽水処理を施し、たとえば、
含水率７０％以上程度に、木材が充分飽水された状態に
しておくことが好ましい。それにより、木材中の水を媒
体として処理液中のイオンが速く拡散していくようにな
って、含浸時間を短縮することができるためである。上
記飽水処理方法としては、水中貯木、スチーミング、減
圧下含浸、加圧下含浸等が挙げられる。Prior to impregnation, the raw wood is subjected to water saturation treatment, for example,
It is preferable to keep the wood sufficiently saturated with water to a moisture content of about 70% or more. This is because the ions in the treatment liquid can diffuse quickly using the water in the wood as a medium, and the impregnation time can be shortened. Examples of the above-mentioned water saturation treatment methods include underwater wood storage, steaming, impregnation under reduced pressure, and impregnation under pressure.
木材中に生成させて木材組織内に分散・定着させる不溶
性不燃性無機物としては、特に限定はされず、たとえば
、ホウ酸塩、リン酸塩およびリン酸水素塩、炭酸塩、硫
酸塩および硫酸水素塩、ケイ酸塩、硝酸塩、フッ化物、
塩化物、臭化物、水酸化物等が挙げられ、２種以上の無
機物が木材中に共存されるようであってもよい。Insoluble, nonflammable inorganic substances that are generated in wood and dispersed and fixed in the wood tissue are not particularly limited, and include, for example, borates, phosphates, hydrogen phosphates, carbonates, sulfates, and hydrogen sulfate. salts, silicates, nitrates, fluorides,
Examples include chlorides, bromides, hydroxides, etc., and two or more types of inorganic substances may coexist in the wood.
前記のような無機化合物（塩）のカチオン部分を構成す
る元素としては、Ｎａ、に等のアルカリ金属元素、Ｍｇ
、Ｃａ、Ｓｒ、Ｂａ等のアルカリ土類金属元素およびＡ
Ｉを用いることが好ましいが、これらに限定されること
はなく、たとえば、Ｍｎ、Ｎｉ、Ｚｎ、Ｃｄ等の遷移元
素やＳｔ、Ｐｂ等の炭素族元素等も使用できる。Elements constituting the cation portion of the above-mentioned inorganic compounds (salts) include alkali metal elements such as Na and Mg.
, alkaline earth metal elements such as Ca, Sr, Ba, and A
Although it is preferable to use I, it is not limited thereto, and for example, transition elements such as Mn, Ni, Zn, and Cd, and carbon group elements such as St and Pb can also be used.
アニオン部分を構成するものとしては、ＢＯ。BO constitutes the anion portion.
、ＰＯ４、Ｃｏｔ 、ＳＯ４、Ｆ、ＣＩ、ＢｒおよびＯ
Ｈアニオンを使用することが好ましい。ＢＯ、、ｐｏ、
アニオンでは、前記難燃化メカニズムｆｂ）による効果
、Ｃ０８アニオンでは同（ｄｌによる効果、Ｆ、ＣＩ、
Ｂｒアニオンでは同（Ｃ）および（ｄ）による効果がそ
れぞれ期待できるため、−層好適である。しかし、これ
らに限定されることはなく、たとえば、Ｏ＋ Ｎ Ｏｘ
＋ Ｓ １０４ ＋ Ｓ ｆ Ｏｘ ７ ニオン
等であっても構わない。, PO4, Cot, SO4, F, CI, Br and O
Preference is given to using H anions. BO,,po,
For anion, the effect due to the flame retardant mechanism fb) is the same as for C08 anion (effect due to dl, F, CI,
Since the effects of (C) and (d) can be expected from the Br anion, the − layer is preferable. However, it is not limited to these, for example, O+N Ox
+ S 104 + S f Ox 7 nion or the like may be used.
このようなカチオン部分を構成するものとアニオン部分
を構成するものは、それぞれ単独で、あるいは、複数種
を併せて使用されるが、両者の組み合わせは、どれでも
可能というわけではなく、イオン半径等による制約があ
る。そのような条件を鑑みて、カチオン部分を構成する
ものとアニオン部分を構成するものとを任意に選択し、
それらを含んだ水溶性無機物を各々水に熔解させて、カ
チオン含有処理液（Ｘ）およびアニオン含有処理液（Ｙ
）からなる２種以上の水溶性無機物水溶液を調製する。The cation portion and the anion portion may be used alone or in combination, but not all combinations are possible, and the ionic radius, etc. There are restrictions due to In view of such conditions, what constitutes the cation part and what constitutes the anion part are arbitrarily selected,
The water-soluble inorganic substances containing them are each dissolved in water, and a cation-containing treatment liquid (X) and an anion-containing treatment liquid (Y
) Aqueous solutions of two or more water-soluble inorganic substances are prepared.
２種以上とはすなわち、前記Ｘ、 Ｙとしてそれぞれ同
一組成のものを１種ずつ用意してもよいし、組成の異な
るＸ、、Ｘ、、Ｘ、・・・およびＹ＋ 、Ｙｔ 、Ｙｓ
・・・を用意してもよい。ここで、１種の水溶液中に含
まれるカチオンあるいはアニオンの種類はそれぞれ複数
であっても構わないことは言うまでもない。また、１種
の不溶性不燃性無機物中に、上記カチオンあるいはアニ
オン部分を構成するものが、同時に２種以上含まれるよ
うに構成されていてもよい。Two or more types means that X and Y may each have the same composition, or X, X, X, ... and Y+, Yt, Ys with different compositions.
You may also prepare... Here, it goes without saying that there may be a plurality of types of cations or anions contained in one type of aqueous solution. Furthermore, one type of insoluble nonflammable inorganic substance may contain two or more types of the above-mentioned cation or anion moieties at the same time.
このような両処理液を、原料木材に対してそれぞれ別々
に、交互に浸漬含浸させるようにする。The raw material wood is separately and alternately impregnated with these two treatment solutions.
そして、最後のアニオン含有処理液Ｙ′を、先に使用し
たＹのいずれよりも高濃度のものとするのが、この発明
における特徴である。その他の処理液の濃度や含浸回数
あるいは含浸順序等に関しては特に限定はなく、目的に
応じて適宜設定されうる。たとえば、含浸方法としては
、ＹＸＹ’、ＹＸＹ・・・ＸＹ’、ＸＹ・・・ｘｙ’等
が例示でき、ＸおよびＹ、Ｙ’は、それぞれ同一種のも
のであっても異種のものであっても構わない。ここで、
アニオン合を処理液Ｙによる含浸から始めていけば、最
低３回の含浸でこの発明にかかる効果的な含浸処理が達
成でき、カチオン含有処理液Ｘから含浸させることに比
べ、効率面で有利となるために好ましい。A feature of this invention is that the final anion-containing treatment liquid Y' has a higher concentration than any of the Y used previously. There are no particular limitations on the concentration of other treatment liquids, the number of times of impregnation, the order of impregnation, etc., and can be set as appropriate depending on the purpose. For example, examples of impregnation methods include YXY', YXY...XY', XY...xy', etc., and X, Y, and Y' may be of the same type or different types. I don't mind. here,
If the anion combination is started with impregnation with treatment liquid Y, the effective impregnation treatment according to the present invention can be achieved with at least three impregnations, which is advantageous in terms of efficiency compared to impregnation from cation-containing treatment liquid X. preferred for.
なお、各浴における浸漬時間は、特に限定はされないが
、第２浴目以降は、木材中に拡散したイオンが反応して
不溶性不燃性無機物を生成していく過程を含み、かつ、
すでに生成している無機物が浸透の障害となることもあ
るため、さらにイオンを充分に含浸させるために、順に
ｔｊｉｊ−？Ｍ時間を長（してい（ことも効果的である
。The immersion time in each bath is not particularly limited, but from the second bath onwards, the ions diffused into the wood react to generate insoluble, non-flammable inorganic substances, and
Since inorganic substances that have already been formed may become an impediment to penetration, in order to further impregnate the ions sufficiently, tjij-? It is also effective to extend the M time.
以上の含浸処理が完了した後、乾燥させて改質木材が得
られる。なお、含浸処理後の木材に対し、より一層耐゛
水性を高めるために、後処理として溶脱処理を行っても
よいし、水洗等を実施してもよい。After the above impregnation treatment is completed, the wood is dried to obtain modified wood. In addition, in order to further improve the water resistance of the wood after the impregnation treatment, a leaching treatment may be performed as a post-treatment, or washing with water or the like may be performed.
この発明にかかる改質木材の製法は、第１に、合計３回
以上の浸漬処理を行うようにしているため、以下の利点
を備えている。すなわち；■ 木材に対し、多量の無機
物を充分含浸させることができる。First, the method for producing modified wood according to the present invention has the following advantages because the dipping treatment is performed a total of three times or more. That is; ■ Wood can be sufficiently impregnated with a large amount of inorganic substances.
第２には、最後の含浸に高濃度のアニオン含有処理液を
使用していることから、下記の諸利点も得られている。Secondly, the use of a highly concentrated anion-containing treatment liquid for the final impregnation provides the following advantages:
すなわち；
■ アニオンの木材中への拡散速度が速くなって、木材
内に含まれているカチオン成分が木材外部に流出するこ
となく内部で反応するようになるため、木材外での不溶
性不燃性無機物の生成が抑制され、木材内には多量の不
溶性不燃性無機物を生成・定着させることが可能となる
。つまりは、木材外における無機物の損失を防いで効率
よく薬剤を利用し、製造コストを抑えつつ、高度に優れ
た性能を有する改質木材が得られるのである。In other words: ■ The diffusion rate of anions into the wood becomes faster, and the cationic components contained within the wood react inside the wood without flowing out to the outside, so that insoluble and nonflammable inorganic substances The generation of is suppressed, and it becomes possible to generate and fix a large amount of insoluble and nonflammable inorganic substances within the wood. In other words, it is possible to prevent the loss of inorganic substances outside the wood, utilize chemicals efficiently, reduce manufacturing costs, and obtain modified wood with highly superior performance.
■ 木材内に残存するイオンとしてはアニオン成分を残
すことができる。このアニオン成分は、通宝、カチオン
成分に比べて防火性等において高い性能を有するため、
これが改質木材の難燃化等に大きく貢献する。このよう
に、溶脱処理を行わずに可溶性成分を有効利用すること
ができ、同時に、そのための処理時間が短縮され、処理
浴、処理液等も不要となる。■Anion components can remain as ions that remain in the wood. This anionic component has higher performance in terms of fire retardancy than the cationic component.
This greatly contributes to making modified wood flame retardant. In this way, soluble components can be effectively utilized without performing leaching treatment, and at the same time, the treatment time for this is shortened and treatment baths, treatment liquids, etc. are no longer necessary.
■ 木材表面に存在する不溶性不燃性無機物が、高濃度
のアニオン含有処理液により溶出される。■ Insoluble, nonflammable inorganic substances present on the wood surface are eluted by the treatment solution containing a high concentration of anions.
つまり、最後の含浸により木材表面が洗浄されることに
なり、含浸処理後、別工程としての洗浄操作を行わなく
ても、木質感を保った優れた外観の改質木材を得ること
ができる。In other words, the surface of the wood is cleaned by the final impregnation, and it is possible to obtain modified wood with an excellent appearance that retains its wood feel without the need for a separate cleaning process after the impregnation treatment.
つぎに、この発明における実施例および比較例について
説明する。Next, Examples and Comparative Examples of the present invention will be described.
■ 盈豆本林皇製皮
（実施例１）
ベイツガ材の３鶴厚ロータリー単板を水中に浸漬し、３
０Ｔｏｒｒ程度の減圧下で飽水処理を行い、木材内部に
まで充分に水を含浸させた。■ Eido Honrinko Leather (Example 1) A 3-tsuru rotary veneer made of hemlock wood was immersed in water,
A water saturation treatment was performed under a reduced pressure of approximately 0 Torr to sufficiently impregnate the interior of the wood with water.
得られた飽水単板を、水ｉｆ当たりにリン酸水素ニアン
モニウム（（ＮＨ４）Ｉ ＨＰＯ４）３．５モルおよび
オルトホウ酸（Ｈ，ＢＯ，）４．０モルが熔解されたア
ニオン含有処理液（第１浴）中に２４時間浸漬した。つ
いで、この単板を、水１）当たりに塩化バリウム（Ｂ
ａ Ｃｌ ｘ ） ２．０モルおよびオルトホウ酸２．
０モルが溶解されたカチオン含有処理液（第２浴）中に
２４時間浸漬し、さらに、水１）当たりにリン酸水素二
アンモニウム４．０モルおよびオルトホウ酸６．０モル
が溶解されたアニオン含有処理液（第３浴）中に２４時
間浸漬し、木材内に不溶性不燃性無機物を生成させた。The obtained saturated veneer was treated with an anion-containing treatment solution in which 3.5 moles of ammonium hydrogen phosphate ((NH4)I HPO4) and 4.0 moles of orthoboric acid (H, BO,) were dissolved per water if. (first bath) for 24 hours. Next, this veneer was treated with barium chloride (B
a Cl x ) 2.0 mol and orthoboric acid 2.
The anion was immersed for 24 hours in a cation-containing treatment solution (second bath) in which 0 mol was dissolved, and further 4.0 mol of diammonium hydrogen phosphate and 6.0 mol of orthoboric acid were dissolved per 1) of water. The wood was immersed in the containing treatment liquid (third bath) for 24 hours to generate insoluble and nonflammable inorganic substances within the wood.
この浸漬処理後の単板を水洗、乾燥して改質木材を得た
。After this immersion treatment, the veneer was washed with water and dried to obtain a modified wood.
（実施例２〜５．比較例１〜３）
実施例１と同様、飽水処理を行った単板を第１表に示し
た条件でそれぞれ処理し、各改質木材を製造した。(Examples 2 to 5. Comparative Examples 1 to 3) Similarly to Example 1, veneers subjected to water saturation treatment were treated under the conditions shown in Table 1 to produce each modified wood.
■ 人質玉材坐止皿
上記得られた改質木材について、無機物の全含浸率、Ｈ
燃性（防火性）および外観を調べた。上記無機物の全含
浸率は、洗浄処理を行わない状態での、絶乾した木材の
重量に対する不溶性不燃性無機物および未反応イオン（
不溶性不燃性無機物を生成していないイオン）の合計含
浸重量比率である。難燃性は、ＪＴＳ規格Ａ１３２１に
おける難燃■級を◎、！！燃■級を△、その中間の性能
をＯとし、外観については、木材表面に無機物の生成が
認められないものを◎、木材表面全体にわたって白く不
溶性不燃性無機物の生成が認められるものを△、その中
間の状態のものを○とした。■ Hostage ball material seating plate Regarding the modified wood obtained above, the total impregnation rate of inorganic matter, H
Flammability (fire resistance) and appearance were investigated. The total impregnation rate of the above inorganic substances is the insoluble non-flammable inorganic substances and unreacted ions (
This is the total impregnated weight ratio of ions that do not produce insoluble, nonflammable inorganic substances. The flame retardancy is ◎, Class ◎ flame retardant according to JTS standard A1321! ! The flame rating is △, and the intermediate performance is O. Regarding the appearance, ◎ indicates that no inorganic substances are formed on the wood surface, △ indicates that white, insoluble, nonflammable inorganic substances are observed throughout the wood surface. Those in the intermediate state were marked as ○.
以上の結果を第１表に示す。The above results are shown in Table 1.
第１表にみるように、実施例の改質木材は、比較例のも
のに比べ、効率よく多量の無機物が含浸されて難燃性が
向上し、かつ、外観的にも優れていることが判明した。As shown in Table 1, the modified wood of the example is more efficiently impregnated with a large amount of inorganic substances, resulting in improved flame retardancy and better appearance than that of the comparative example. found.
この発明にかかる改質木材の製法は、以上のようであり
、木材内部に不溶性不燃性無機物を生成・定着させるに
あたり、カチオンおよびアニオン含有処理液を浸漬含浸
により交互に合計３回以上合浸させ、かつ、最後の含浸
を先に使用したアニオン含有処理液よりも高濃度のアニ
オン含有処理液により行うようにしているため、力学的
強度。The method for producing modified wood according to the present invention is as described above, and in order to generate and fix an insoluble nonflammable inorganic substance inside the wood, a treatment solution containing cations and anions is alternately dipped and impregnated three times or more in total. , and because the final impregnation is performed with an anion-containing treatment solution with a higher concentration than the anion-containing treatment solution used earlier, the mechanical strength is improved.
寸法安定性等が良好であるとともに、高度に優れた難燃
性を備え、木質感も損なわれていない改質木材を、効率
よく製造することを可能としている代理人 弁理士
松 本 武 彦
手続補正書（自発
昭和６３年 ２月 ６日A patent attorney who makes it possible to efficiently produce modified wood that has good dimensional stability, highly flame retardant properties, and retains its wood feel.
Takehiko Matsumoto Procedural Amendment (Spontaneous February 6, 1988)
Claims (3)
により不溶性不燃性無機物を生じさせる２種以上のアニ
オン含有処理液およびカチオン含有処理液を個々に含浸
させて木材組織内に前記無機物を生成・定着させるよう
にする改質木材の製法であって、前記両処理液を浸漬含
浸により交互に合計３回以上含浸させるようにし、かつ
、最後の含浸を先に使用したアニオン含有処理液よりも
高濃度のアニオン含有処理液により行うことを特徴とす
る改質木材の製法。(1) Raw material wood to be modified is impregnated with two or more anion-containing treatment liquids and cation-containing treatment liquids that produce insoluble, nonflammable inorganic substances when mixed, and the inorganic substances are introduced into the wood structure. A method for producing modified wood in which the above-mentioned treatment liquids are alternately impregnated by dipping and impregnating a total of three or more times, and the last impregnation is made from a treatment liquid containing an anion that is used earlier. A method for producing modified wood characterized by using a treatment solution containing a high concentration of anions.
る特許請求の範囲第１項記載の改質木材の製法。(2) The method for producing modified wood according to claim 1, wherein the first impregnation is with an anion-containing treatment liquid.
せるカチオン含有処理液のうちの少なくとも１種が、ア
ルカリ金属、アルカリ土類金属およびアルミニウムの各
陽イオンからなる群の中から選ばれた少なくとも１種を
含む溶液であり、かつ、アニオン含有処理液のうちの少
なくとも１種が、ＢＯ＿３、ＰＯ＿４、ＣＯ＿３、ＳＯ
＿４、Ｆ、Ｃｌ、ＢｒおよびＯＨの各陰イオンからなる
群の中から選ばれた少なくとも１種を含む溶液である特
許請求の範囲第１項または第２項記載の改質木材の製法
。(3) At least one of the cation-containing treatment liquids that produce an insoluble nonflammable inorganic substance when mixed is at least one selected from the group consisting of alkali metal, alkaline earth metal, and aluminum cations. The solution contains seeds, and at least one of the anion-containing treatment liquids contains BO_3, PO_4, CO_3, SO
The method for producing modified wood according to claim 1 or 2, wherein the solution is a solution containing at least one selected from the group consisting of _4, F, Cl, Br, and OH anions.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29643487A JPH01136702A (en) | 1987-11-24 | 1987-11-24 | Manufacture of improved wood |
| US07/157,228 US4857365A (en) | 1987-02-24 | 1988-02-18 | Method of manufacturing modified wood material |
| GB8803762A GB2202555B (en) | 1987-02-24 | 1988-02-18 | Method of manufacturing modified wood material |
| DE3805819A DE3805819A1 (en) | 1987-02-24 | 1988-02-24 | METHOD FOR PRODUCING MODIFIED WOOD MATERIAL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29643487A JPH01136702A (en) | 1987-11-24 | 1987-11-24 | Manufacture of improved wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01136702A true JPH01136702A (en) | 1989-05-30 |
| JPH0520241B2 JPH0520241B2 (en) | 1993-03-19 |
Family
ID=17833487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29643487A Granted JPH01136702A (en) | 1987-02-24 | 1987-11-24 | Manufacture of improved wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01136702A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164294A (en) * | 1987-12-19 | 1989-06-28 | Fanuc Ltd | Spindle driving controller for machine tool |
-
1987
- 1987-11-24 JP JP29643487A patent/JPH01136702A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0520241B2 (en) | 1993-03-19 |
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