JPH026614B2 - - Google Patents
Info
- Publication number
- JPH026614B2 JPH026614B2 JP54010612A JP1061279A JPH026614B2 JP H026614 B2 JPH026614 B2 JP H026614B2 JP 54010612 A JP54010612 A JP 54010612A JP 1061279 A JP1061279 A JP 1061279A JP H026614 B2 JPH026614 B2 JP H026614B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- resin
- resin liquid
- mixed
- degreasing
- 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 claims description 137
- 229920005989 resin Polymers 0.000 claims description 123
- 239000011347 resin Substances 0.000 claims description 123
- 239000007788 liquid Substances 0.000 claims description 61
- 229920003002 synthetic resin Polymers 0.000 claims description 35
- 239000000057 synthetic resin Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 34
- 229920001169 thermoplastic Polymers 0.000 claims description 24
- 238000005238 degreasing Methods 0.000 claims description 22
- 239000000178 monomer Substances 0.000 claims description 21
- 239000011122 softwood Substances 0.000 claims description 20
- 239000004416 thermosoftening plastic Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 10
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 9
- 241000018646 Pinus brutia Species 0.000 claims description 9
- 235000011613 Pinus brutia Nutrition 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 241000218691 Cupressaceae Species 0.000 claims description 8
- 238000004061 bleaching Methods 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 7
- 210000003934 vacuole Anatomy 0.000 claims description 7
- 238000004040 coloring Methods 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- 238000012644 addition polymerization Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 238000002347 injection Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000002087 whitening effect Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 5
- 238000004042 decolorization Methods 0.000 description 5
- 235000009414 Elaeocarpus kirtonii Nutrition 0.000 description 4
- 244000236151 Tabebuia pallida Species 0.000 description 4
- 235000013584 Tabebuia pallida Nutrition 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 235000000405 Pinus densiflora Nutrition 0.000 description 3
- 240000008670 Pinus densiflora Species 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229920000180 alkyd Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002683 reaction inhibitor Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 239000011155 wood-plastic composite Substances 0.000 description 2
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 240000001606 Adenanthera pavonina Species 0.000 description 1
- 235000007575 Calluna vulgaris Nutrition 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229920001587 Wood-plastic composite Polymers 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001409 amidines Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000006103 coloring component Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 150000002429 hydrazines Chemical class 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920001289 polyvinyl ether Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- JOUDBUYBGJYFFP-FOCLMDBBSA-N thioindigo Chemical compound S\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2S1 JOUDBUYBGJYFFP-FOCLMDBBSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000005406 washing 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】
本発明は着色木材の製造方法に関するものであ
り、松類、桧類の針葉樹材を脱脂による脱色処理
又は脱色後に脱色処理を行つて木材中の樹脂分を
抽出除去すると共に、材色を均一白色化した後、
これに付加重合型合成樹脂のモノマー又はオリゴ
マー、プレポリマーより成る低分子樹脂液と熱可
塑性合成樹脂のポリマーとの混合樹脂液を注入し
て木材空胞内に混合樹脂液を均一に分散し、次い
で該樹脂液を重合硬化させて針葉樹材内部に多数
の空隙が混在した樹脂体を形成することにより、
針葉樹材の木目模様を美麗にかつ鮮明に現出せし
めると共に全体を白色化あるいは任意の色彩に着
目し、しかも木材の諸物性を改善することを特徴
とする着色木材の製造方法に係るものである。以
下、附加重合型合成樹脂のモノマー又はオリゴマ
ー、プレポリマーより成る低分子樹脂と熱可塑性
合成樹脂のポリマーを単に附加重合型合成樹脂液
及び熱可塑性重合体と言う。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing colored wood, in which coniferous wood of pine and cypress trees is decolorized by degreasing, or the resin content in the wood is extracted and removed by decolorization after decolorization. At the same time, after uniformly whitening the material color,
A mixed resin liquid of a low-molecular resin liquid consisting of an addition-polymerizable synthetic resin monomer, oligomer, or prepolymer and a thermoplastic synthetic resin polymer is injected into this, and the mixed resin liquid is uniformly dispersed within the wood vacuoles. Next, by polymerizing and curing the resin liquid to form a resin body with a large number of voids mixed inside the softwood material,
This invention relates to a method for producing colored wood, which is characterized by making the wood grain pattern of coniferous wood appear beautiful and clear, and by turning the whole material white or by focusing on an arbitrary color, and also by improving various physical properties of the wood. . Hereinafter, the low-molecular resin consisting of the monomer or oligomer or prepolymer of the addition polymerization type synthetic resin and the polymer of the thermoplastic synthetic resin will be simply referred to as the addition polymerization type synthetic resin liquid and the thermoplastic polymer.
従来より、木材、特に針葉樹材は美麗な木目模
様を有していることからその化粧性を生かした家
具材あるいは建築用材等に広く用いられている
が、このような木質材料を任意の色彩に着色して
用いる場合には塗装による方法、あるいは漂白後
着色剤で着色する方法等によらねばならず、前者
の場合には表面が着色塗料により隠蔽されてしま
うために木目模様が不鮮明になり易く化粧性が低
下し、又、後者の場合には漂白時に木材中の成分
であるリグニンその他が除去されて強度低下が生
じるという欠点があつた。 Traditionally, wood, especially softwood wood, has a beautiful grain pattern and has been widely used for furniture and construction materials that take advantage of its decorative properties. If it is to be colored, it must be painted or bleached and then colored with a coloring agent; in the former case, the wood grain pattern tends to become unclear because the surface is covered by the colored paint. The cosmetic properties are lowered, and in the latter case, lignin and other components in the wood are removed during bleaching, resulting in a decrease in strength.
一方、木質材料に合成樹脂液を注入硬化してそ
の強度、硬度、その他の諸物性を高めたものが
W・P・C(Wood Plastic Composit)として知
られているが、このW・P・Cは、木材細胞を合
成樹脂で充填する結果、該木質材料が全体的に透
明性を帯び、その上に木材の色が加わつて濃色に
なる傾向があり、しかも、樹脂液の注入が容易な
春材部分の透明度が秋材部分より高くなつて木目
模様の濃淡が逆転し、天然木とは全く異なつた外
観になつて自然観を欠くという欠点があつた。 On the other hand, a material made by injecting and curing a synthetic resin liquid into a wood material to improve its strength, hardness, and other physical properties is known as W.P.C (Wood Plastic Composite). As a result of filling wood cells with synthetic resin, the wood material becomes transparent as a whole, and the color of the wood is added to it, resulting in a dark color. The disadvantage was that the transparency of the spring wood part was higher than that of the autumn wood part, and the shading of the wood grain pattern was reversed, resulting in an appearance that was completely different from natural wood and lacked a sense of nature.
一方、出願人は、先にこのようなW・P・Cの
木目の逆転現象をなくして自然な木目を現出させ
る方法として附加重合型合成樹脂液と熱可塑性重
合体との混合樹脂液を木質材料に注入硬化させて
多数の空隙の混在する樹脂体を木材内部に形成
し、この樹脂体の空隙を利用して木質材を白色化
して自然な木目を現出する方法を見出した(特願
昭53−42827号)。 On the other hand, the applicant previously proposed a mixed resin solution of an addition-polymerized synthetic resin solution and a thermoplastic polymer as a method to eliminate such W.P.C. wood grain reversal phenomenon and make natural wood grain appear. We have discovered a method of injecting and curing wood materials to form a resin body with a large number of voids inside the wood, and using the voids in the resin body to whiten the wood material and reveal its natural wood grain. (Gan Sho 53-42827).
しかしながら、上記方法を針葉樹材に適用する
と全体的に不透明感を有する白色の外観を呈させ
ることは出来るが木目に沿つて白色度のムラが生
じて木目が不鮮明となり、化粧性を安定させるの
が難しいものであつた。 However, when the above method is applied to softwood materials, although it is possible to give an overall opaque white appearance, uneven whiteness occurs along the wood grain, making the wood grain unclear, and it is difficult to stabilize the cosmetic properties. It was difficult.
このような木目に沿つた白色度のムラを除く為
に先の発明では樹脂液に界面活性剤を添加して注
入の均一化をはかつて白色度を均一にすること
や、被注入材である木質材自体の色を漂白によつ
て白色化させておいてから樹脂注入して白色度の
ムラをなくすことを試みたが、松類や桧類の如く
樹脂分を多く含んだ針葉樹材では木材中のヤニが
注入樹脂液の注入阻害を起こすだけでなく、混合
樹脂液の中に異種の樹脂分(ヤニ等)や混在する
ことで注入樹脂液の反応を阻害して硬化が遅くな
り、白色化が均一とならないという新たな問題が
あつて、界面活性剤による注入促進た、漂白によ
る材色の白色化だけでは全面を均一な白木調にす
るのが困難であつた。ここで、前述の注入阻害と
は、低分子樹脂液である附加重合型合成樹脂のモ
ノマー又はオリゴマー、プレポリマーなどはヤニ
によつて狭められ、木材空胞の開口が小さかつた
としても比較的スムーズに木材空胞内に注入され
るのに対し、分子量の比較的大きい熱可塑性合成
樹脂のポリマーは開口が小さいと木材空胞内に注
入され難い事を言う。処で、注入樹脂液を硬化さ
せると、まず附加重合型合成樹脂が発熱しつつ硬
化し、この熱により熱可塑性合成樹脂が膨脹す
る。附加重合型合成樹脂の硬化発熱が終了し、冷
却すると熱可塑性合成樹脂は収縮し、そこに空隙
が生じて白色化するのである。従つてヤニによる
注入阻害の起つた箇所では分子量の比較的大きい
熱可塑性合成樹脂の注入量が少なくて白色化し難
く、ヤニが少なくて注入が充分であり、充分白色
化した箇所との間で大きい色むらが生ずる事にな
る。 In order to eliminate such uneven whiteness along the wood grain, the previous invention added a surfactant to the resin liquid to make the injection uniform. Attempts were made to whiten the color of the wood itself by bleaching it and then inject it with resin to eliminate uneven whiteness. Not only does the tar inside inhibit the injection of the injected resin liquid, but also the presence of different types of resin (such as tar) in the mixed resin liquid inhibits the reaction of the injected resin liquid, slowing down the curing process, and causing the white color. A new problem was that the coloring was not uniform, and it was difficult to achieve a uniform white wood finish on the entire surface by simply whitening the wood color by bleaching or promoting injection with a surfactant. Here, the above-mentioned injection inhibition means that the monomers, oligomers, prepolymers, etc. of addition-polymerized synthetic resins, which are low-molecular resin liquids, are narrowed by resin, and even if the openings of wood vacuoles are small, they are relatively small. In contrast, thermoplastic synthetic resin polymers with relatively large molecular weights are difficult to inject into wood vacuoles if the openings are small. When the injected resin liquid is cured, the addition polymerization type synthetic resin first cures while generating heat, and this heat causes the thermoplastic synthetic resin to expand. When the curing heat generation of the addition polymerization type synthetic resin ends and it is cooled, the thermoplastic synthetic resin contracts, creating voids therein and turning white. Therefore, in areas where injection inhibition due to resin occurs, the amount of thermoplastic synthetic resin with a relatively large molecular weight is small and whitening is difficult to occur, and there is a large difference between the area where there is less resin and injection is sufficient, and the area is sufficiently whitened. This will result in uneven color.
本発明は上記欠点および問題点に鑑みてなされ
たものであり、松類、桧類等の針葉樹材の美麗な
木目を全面にわたつて均一に白色化した木材表面
に鮮明に現出させ得るようにした着色木材の製造
方法であり、被注入材である松類や、桧類等の針
葉樹材を一旦脱脂による脱脂処理又は脱脂後脱色
処理して木材中の樹脂分を除去した後、これに附
加重合型合成樹脂液と熱可塑性重合体との混合樹
脂液を注入し、硬化させることによつて木材中に
多数の空隙が略均一に混在した樹脂体を形成し
て、硬化不良及び注入阻害による白色度のムラを
なくして針葉樹材特有の木目模様をそのままの形
態で鮮明に現出させ、あわせて木材の物性を改善
することを特徴とする着色木材の製造方法を提供
するものである。 The present invention has been made in view of the above-mentioned drawbacks and problems, and is intended to make the beautiful wood grains of softwood materials such as pine and cypress trees appear clearly and evenly over the entire surface of the wood, which has been whitened. This is a method for producing colored wood, in which the resin content in the wood is removed by degreasing or degreasing and then decolorizing the injected material, such as pine or cypress. By injecting a mixed resin liquid of addition-polymerized synthetic resin liquid and thermoplastic polymer and curing it, a resin body with a large number of voids evenly mixed in the wood is formed, resulting in poor curing and injection inhibition. To provide a method for producing colored wood, which is characterized by eliminating unevenness in whiteness due to oxidation, making the wood grain pattern unique to softwood wood clearly appear in its original form, and improving the physical properties of the wood.
本発明において脱脂処理とは、水酸化ナトリウ
ム、炭酸ナトリウム、炭酸水素ナトリウム、リン
酸ナトリウム等のアルカリ溶液あるいはアルコー
ル、ベンゼン、エチレングリコール、トルエン等
の溶剤または沸騰水中に針葉樹材を浸漬し、木材
中の樹脂を抽出したり、又は針葉樹材を圧力釜内
で適宜蒸気圧のもとで蒸煮して樹脂分を除去する
ものであり、使用する針葉樹材の樹種やサイズに
応じて樹脂の抽出時間、溶媒の種類及び濃度等を
適宜決定して行い、著しい強度低下や変色をきた
さない程度に行う。 In the present invention, degreasing treatment refers to immersing softwood in an alkaline solution such as sodium hydroxide, sodium carbonate, sodium bicarbonate, or sodium phosphate, or in a solvent such as alcohol, benzene, ethylene glycol, or toluene, or in boiling water. The resin content is removed by steaming softwood wood under appropriate steam pressure in a pressure cooker, and the resin extraction time and size vary depending on the species and size of the softwood wood used. The type and concentration of the solvent are appropriately determined and carried out to the extent that no significant decrease in strength or discoloration occurs.
例えば、アルカリ溶液中に浸漬する場合には、
濃度が1〜3%で処理温度20〜50℃、処理時間30
分〜120分が適当である。 For example, when immersing in an alkaline solution,
Concentration is 1-3%, treatment temperature 20-50℃, treatment time 30
minutes to 120 minutes is appropriate.
また蒸煮による場合には蒸気圧1〜3気圧で蒸
煮時間5分〜60分が適当である。又、処理時間を
短縮するために界面活性剤を添加することもでき
る。 In the case of steaming, a steam pressure of 1 to 3 atm and a steaming time of 5 to 60 minutes are appropriate. Also, a surfactant can be added to shorten the processing time.
このように針葉樹材を脱脂処理して木材中の樹
脂分を除去すると、後に行う混合樹脂液の注入処
理の際、木材中の残留樹脂分による注入阻害及び
硬化の際の硬化反応の阻害の問題が解消されて硬
化後の白色度のむらの発生が防止され、松類、桧
類等の樹脂分の多い針葉樹材の内部に白色化樹脂
体を均一に形成することができるものである。 If the resin content in the wood is removed by degreasing softwood wood in this way, when the mixed resin liquid is injected later, the residual resin content in the wood may inhibit the injection and inhibit the curing reaction during curing. This eliminates the occurrence of uneven whiteness after curing, and allows a whitened resin body to be uniformly formed inside coniferous materials with a high resin content, such as pine and cypress trees.
又、脱色処理は樹脂分を除去することで達成さ
れるが木材の変色を生じるような脱脂処理を行う
場合には脱脂処理した針葉樹材はさらに漂白剤に
て脱色処理するものである。即ち、脱色を兼ねた
脱脂処理もしくは脱脂処理後の脱色処理によつて
木材色を濃色化せずに樹脂分の除去を行うもので
ある。 Further, decolorization is achieved by removing the resin content, but when degreasing that causes discoloration of the wood, the degreased softwood is further decolorized with a bleaching agent. That is, the resin content is removed without darkening the color of the wood by degreasing treatment that also serves as decolorization or decolorization treatment after degreasing treatment.
次に上記脱脂処理を行つた際に薬液が針葉樹材
の内部に残留することがあるので、PH調節を行つ
て中性化し、充分乾燥した後、附加重合型合成樹
脂液と熱可塑性重合体とからなる混合樹脂液を針
葉樹材に注入する。 Next, when performing the above degreasing treatment, the chemical solution may remain inside the softwood material, so the pH is adjusted to neutralize it, and after sufficient drying, the addition polymerization type synthetic resin solution and thermoplastic polymer are combined. A mixed resin solution consisting of is injected into the softwood material.
本発明において附加重合型合成樹脂液を使用す
るのは、附加重合型合成樹脂は縮合型合成樹脂に
比べて木材に注入硬化した場合、硬化レジンの収
縮が小さいために割れや変形等の発生の危険が少
なく、又、縮合水が生じないために低圧で硬化さ
すことが可能であり、低圧での硬化でも硬度、耐
摩耗性、吸水性等の諸物性が改善できるためであ
る。 The reason why an addition polymerization type synthetic resin liquid is used in the present invention is that when an addition polymerization type synthetic resin is injected into wood and hardened, compared to a condensation type synthetic resin, the cured resin shrinks less, so cracks and deformation are less likely to occur. This is because there is little danger, and since no condensation water is produced, it is possible to cure at low pressure, and various physical properties such as hardness, abrasion resistance, water absorption, etc. can be improved even with low pressure curing.
この附加重合型合成樹脂液は硬化後の性質によ
り熱硬化性と熱可塑性に大別でき、これらの樹脂
の一方或には両者を混合使用することができる。 This addition polymerization type synthetic resin liquid can be roughly classified into thermosetting and thermoplastic depending on the properties after curing, and one of these resins or a mixture of both can be used.
例えば、熱可塑性樹脂体を作る場合には1分子
中に1ケのビニル基を有するモノマー、例えばオ
レフイン系炭化水素、アクリル酸モノマー、酢酸
ビニル、ビニルアルコール系モノマー、ハロゲン
オレフイン系炭化水素、含窒素ビニルモノマー、
含硫黄ビニルモノマーあるいはこれらの混合液、
ブタジエン等の共役二重結合を有するモノマー、
あるいはこれらと1分子中に1ケのビニル基を有
するモノマーの混合液、熱可塑性ポリウレタン樹
脂液があり、熱可塑性樹脂体を作る場合にはジビ
ニルベンゼン、ジアリルフタレート等の1分子中
に2ケ以上のビニル基を有するモノマーあるいは
これらモノマー又は不飽和アルキツド樹脂液と1
分子中に1ケのビニル基を有するモノマーの混合
液、熱可塑性ポリウレタン樹脂液、エポキシ樹脂
液といつたものが使用される。又、これらの樹脂
の形態はプレポリマー、モノマー、オリゴマー、
又はこれらの混合物であつてもよい。 For example, when making a thermoplastic resin body, monomers having one vinyl group per molecule are used, such as olefinic hydrocarbons, acrylic acid monomers, vinyl acetate, vinyl alcohol monomers, halogenated olefinic hydrocarbons, and nitrogen-containing monomers. vinyl monomer,
sulfur-containing vinyl monomer or a mixture thereof,
Monomers with conjugated double bonds such as butadiene,
Alternatively, there are mixtures of these and monomers having one vinyl group per molecule, thermoplastic polyurethane resin liquids, and when making thermoplastic resin bodies, divinylbenzene, diallyl phthalate, etc. have two or more vinyl groups per molecule. A monomer having a vinyl group or these monomers or an unsaturated alkyd resin liquid and 1
A liquid mixture of monomers having one vinyl group in the molecule, a thermoplastic polyurethane resin liquid, and an epoxy resin liquid are used. In addition, the forms of these resins are prepolymers, monomers, oligomers,
Or it may be a mixture of these.
一方、本発明において、前述した附加重合型合
成樹脂液に混合する樹脂として熱可塑性重合体を
使用するものであるが、これは、溶解、膨潤が容
易であると共に附加重合型合成樹脂のモノマーや
オリゴマーの樹脂液中で微粒子化されるために上
記モノマーと共に木材細胞組識の空隙部に注入さ
れ、しかも木材空胞中の樹脂分の除去で分子量の
大きな熱可塑性合成樹脂のポリマーの浸透が阻害
されることなく均一な分散状態で木材中に注入さ
れるものである。 On the other hand, in the present invention, a thermoplastic polymer is used as the resin to be mixed with the above-mentioned addition polymerization type synthetic resin liquid, but this polymer is easy to dissolve and swell, and is compatible with the monomers of the addition polymerization type synthetic resin. Since the oligomer is made into fine particles in the resin solution, it is injected into the voids of the wood cell structure together with the above monomer, and the removal of the resin content in the wood vacuoles inhibits the penetration of the polymer of thermoplastic synthetic resin with a large molecular weight. It is injected into the wood in a uniformly dispersed state without being mixed.
使用される熱可塑性重合体としては、ポリエチ
レン、ポリプロピレン、ポリスチレン等の炭化水
素系樹脂やポリ塩化ビニル、ポリ酢酸ビニル、ポ
リビニルアルコール、ポリビニルエーテル等のビ
ニル系樹脂、ポリアクリレート等のアクリル系樹
脂、さらにはポリアミド等の含窒素系樹脂、熱可
塑性ポリエステル、ポリウレタン樹脂などがあ
る。 Thermoplastic polymers used include hydrocarbon resins such as polyethylene, polypropylene, and polystyrene; vinyl resins such as polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, and polyvinyl ether; and acrylic resins such as polyacrylate. Examples include nitrogen-containing resins such as polyamide, thermoplastic polyesters, and polyurethane resins.
この熱可塑性重合体は附加重合型合成樹脂液に
重量比1〜98%、好ましくは1〜30%の割合で添
加される。これは経済性、粘度等による作業性、
吸水性その他の着色木材の物性、白色化の程度か
らみて充分実用に耐えるものが得られることによ
る。 This thermoplastic polymer is added to the addition polymerization type synthetic resin liquid in a weight ratio of 1 to 98%, preferably 1 to 30%. This is due to economic efficiency, workability due to viscosity, etc.
This is because it is possible to obtain a material that is sufficiently durable for practical use in terms of water absorption and other physical properties of the colored wood, as well as the degree of whitening.
又、本発明において熱可塑性重合体と附加重合
型合成樹脂液の混合樹脂液には各種の添加剤のい
くつかが添加されることがある。 Further, in the present invention, some of various additives may be added to the mixed resin liquid of the thermoplastic polymer and addition polymerization type synthetic resin liquid.
その使用される添加剤を次に列記する。 The additives used are listed below.
有機過酸化物、無機過酸化物、アゾ化合物、ア
ルカリ金属、フリーデルクラフト触媒その他の硬
化剤。 Organic peroxides, inorganic peroxides, azo compounds, alkali metals, Friedel-Crafts catalysts and other curing agents.
コバルト系、マンガン系、第3級アミン系、有
機金属化合物、バナジウム、メルカプタン、ビナ
コン誘導体その他の反応促進剤。 Cobalt-based, manganese-based, tertiary amine-based, organometallic compounds, vanadium, mercaptan, binacon derivatives and other reaction accelerators.
キノン類、ハイドロキノン類、ヒドラジン塩
類、アミン類、ニトロ化合物、第4級アンモニウ
ム塩類、フエノール類、アミジン類、オキシム類
その他の反応抑制剤、反応禁止剤。 Quinones, hydroquinones, hydrazine salts, amines, nitro compounds, quaternary ammonium salts, phenols, amidines, oximes and other reaction inhibitors and reaction inhibitors.
アゾ系、アントラキノン系、インジゴ及びチオ
インジゴ系、螢光染料その他の染料。 Azo, anthraquinone, indigo and thioindigo, fluorescent dyes and other dyes.
アニオン系、カチオン系、両性、非イオン系の
界面活性剤。 Anionic, cationic, amphoteric, and nonionic surfactants.
フタール酸エステルその他のエステル系、エポ
キシ、ポリエステル系含塩素可塑物等の可塑剤或
にはポリエチレングリコール、高級脂肪酸等の滑
剤。 Plasticizers such as phthalate esters and other ester-based chlorine-containing plastics, epoxies, and polyesters; lubricants such as polyethylene glycol and higher fatty acids.
リン酸エステルその他の難燃性。 Phosphate esters and other flame retardants.
メチルアルコール、エチルアルコール、アセト
ン、トルエン等の極性ないし非極性溶剤。 Polar or non-polar solvents such as methyl alcohol, ethyl alcohol, acetone, toluene, etc.
これらの添加剤は附加重合型合成樹脂液と熱可
塑性重合体との混合樹脂液に添加してもよく、
又、いずれか一方に添加したのち混合樹脂液を得
てもよい。 These additives may be added to the mixed resin liquid of addition polymerization type synthetic resin liquid and thermoplastic polymer,
Alternatively, a mixed resin liquid may be obtained after adding the resin to either one.
又、附加重合型合成樹脂及び熱可塑性重合体
は、その各々の樹脂の組合せにより共溶性の液状
混合物が得られる場合とそうでない場合とがある
が、硬化生成物が不混和なものであれば使用可能
である。 Additionally, addition-polymerized synthetic resins and thermoplastic polymers may or may not produce co-soluble liquid mixtures depending on the combination of their respective resins, but if the cured products are immiscible, Available for use.
混合樹脂液を針葉樹材に注入するには、一般に
減圧法、加圧法、減圧加圧法等の方法で行われ、
通常のW・P・Cの製造における樹脂の注入量と
略々しい量の樹脂が注入されるものであり、次い
で注入された混合樹脂液は重合される。 Injecting mixed resin liquid into softwood materials is generally done by methods such as vacuum method, pressurization method, vacuum pressure method, etc.
The amount of resin injected is approximately the same as that in the production of normal W/P/C, and the injected mixed resin liquid is then polymerized.
樹脂液の重合に際しては、加熱あるいは加圧に
より方法、または紫外線、電子線、γ線等の照射
による方法等が採用できる。 When polymerizing the resin liquid, a method using heating or pressurization, or a method using irradiation with ultraviolet rays, electron beams, gamma rays, etc. can be employed.
このようにして重合硬化せしめた混合樹脂液
は、通常のW・P・Cにおける樹脂体と異なり、
針葉樹材の木材細胞中において樹脂が充満された
状態となつているにも拘わらず樹脂中に多数の空
隙が混在した不均一系の樹脂体を形成しており、
樹脂の界面において光線の反射や拡散が生じ、透
明度が低下して針葉樹材全体が白色化される。 The mixed resin liquid polymerized and cured in this way is different from the resin body in ordinary W/P/C,
Even though the wood cells of coniferous wood are filled with resin, they form a heterogeneous resin body with many voids mixed in the resin.
Reflection and diffusion of light rays occur at the resin interface, reducing transparency and turning the entire softwood material white.
上記針葉樹材の白色化は樹脂液の注入が容易な
春材部分が最も著しく、木材細胞が緻密な秋材部
分は白色化の度合いが小さく、材色がそのまま現
出して白色の素材に針葉樹材の木目模様が現れた
白木調の外観が得られる。 The whitening of the above coniferous wood is most noticeable in the spring wood where the resin liquid can be easily injected, and the degree of whitening is small in the autumn wood where the wood cells are dense, and the wood color remains as it is, making the softwood material white. A white wood-like appearance with a wood grain pattern can be obtained.
また、この時、針葉樹材をあらかじめ脱脂、脱
色処理して木材中の樹脂を除去しているために、
上記混合樹脂が木材中に均一に注入されて硬化に
よる空隙部が均一に発生して白色化の効果が顕著
であり、しかも、木材中の残留樹脂分等の不純物
による着色成分が除去されているのでヤニによる
斑点の発生もなく、木目模様が柔和にかつ鮮明に
現出し、白木調の素地色と針葉樹材の木目模様を
兼ね備えた新規な外観の着色木材を得ることがで
きる。 Also, at this time, since the coniferous wood is degreased and bleached in advance to remove the resin in the wood,
The above mixed resin is uniformly injected into the wood, and voids are uniformly generated by curing, resulting in a remarkable whitening effect, and furthermore, coloring components caused by impurities such as residual resin in the wood are removed. Therefore, there is no occurrence of spots due to tar, the wood grain pattern appears softly and clearly, and it is possible to obtain colored wood with a new appearance that combines the base color of plain wood and the wood grain pattern of coniferous wood.
尚、上記混合樹脂液を注入硬化させるに先立つ
て脱脂、脱色処理した針葉樹材を予め着色処理し
ておいてもよい。 Incidentally, the softwood material that has been degreased and bleached may be colored in advance prior to injecting and curing the mixed resin liquid.
この場合には、針葉樹材を着色剤を用いて予め
着色処理すると春材部が着色され易いので、濃色
を呈し、秋材部分の着色の度合いが低く淡色を呈
するようになるが、次いで混合樹脂液を注入硬化
させると春材部分は秋材部に比べて樹脂液が注入
され易いので淡色化され、一方秋材部は細胞膜が
厚く縅密であるために注入樹脂による白色化の度
合いが低くわずかな着色であつても白地の中に強
調されて着色された杢が浮き上つて現出し、色彩
の変化に富んだ木目模様を有する白木調の着色木
材を得ることができる。 In this case, if the coniferous wood is pre-colored with a coloring agent, the spring wood will be more likely to be colored, so it will take on a dark color, and the autumn wood will have a lower degree of coloring and will take on a lighter color. When the resin liquid is injected and hardened, the spring wood part becomes lighter in color because the resin liquid is more easily injected than the autumn wood part, whereas the autumn wood part has a thicker and denser cell membrane, so the degree of whitening caused by the injected resin is lower. Even if the coloring is low and slight, the colored heather stands out and appears in the white background, and it is possible to obtain a plain wood-like colored wood having a wood grain pattern rich in color variations.
また、前記混合樹脂液に着色剤を添加した樹脂
液を注入する方法も採用できる。この場合には通
常にW・P・Cの場合と異なり、混合樹脂液が重
合硬化によつて木材中で不均一系の樹脂体を形成
し白色化した不透明の樹脂体となるため、少量の
着色剤でも充分な着色効果を得ることができ、樹
脂の注入量の少ない秋材部が脱脂、脱色した木材
の色の呈して現出し、淡い木目模様の着色木材を
得ることができる。 Alternatively, a method of injecting a resin liquid in which a colorant is added to the mixed resin liquid can also be adopted. In this case, unlike the case of W/P/C, the mixed resin liquid forms a heterogeneous resin body in the wood through polymerization and hardening, resulting in a whitened and opaque resin body, so a small amount of A sufficient coloring effect can be obtained even with a coloring agent, and the autumn wood part with a small amount of resin injected shows the color of degreased and bleached wood, making it possible to obtain colored wood with a light grain pattern.
以上述べたように本発明方法は、松類、桧類の
針葉樹材を脱脂による脱色処理又は脱脂後に脱色
処理を行つて木材中の樹脂分を抽出除去するの
で、木材自体の色調を白木調に調整する事が出
来、単なる脱脂処理だけの付加ではなく脱色も組
合せて木材を処理することを条件とし、これによ
つて白木の外観を達成するものである。逆に漂白
による脱色処理を行い、然る後、脱脂処理する場
合、木材中に含まれるヤニ分の多い箇所は漂白さ
れ難く、ムラを生じ、均一な白木調とする事は不
可である。 As described above, in the method of the present invention, the resin content in the wood is extracted and removed by decolorizing pine and cypress coniferous wood by degreasing or decolorizing after degreasing, so the color tone of the wood itself becomes white wood-like. The appearance of plain wood can be achieved by treating the wood not only with a simple degreasing treatment but also with bleaching. On the other hand, when decolorizing the wood by bleaching and then degreasing it, areas with a high resin content in the wood are difficult to bleach, causing unevenness and making it impossible to achieve a uniform white wood tone.
又、一般の脱脂処理では木材を有機溶媒中で高
温処理して樹脂分を抽出除去するので木材が濃色
に変化してしまう。このように脱脂処理で変色し
た木材ではいくら白色化する樹脂組成を注入して
も材色が白木調の木材にはなり得ないものであ
り、脱脂と共に又は脱脂後脱色処理を加えること
ではじめて白木調化粧のWPCが得られるもので
ある。加えて、脱脂処理によつてヤニで狭くなつ
ていた木材空胞の開口が大きく拡げられて低分子
量の重合型合成樹脂のモノマー又はオリゴマー、
プレポリマーは勿論の事、分子量の比較的大きい
熱可塑性合成樹脂ポリマーの注入も木材全面にわ
たつて均一に行われ、この混合樹脂液を重合硬化
させる事により、脱色されて均一に白色化した針
葉樹材内部に多数の空隙が混在した樹脂体を形成
して木材全体をムラのない白木調にするものであ
る。これは又、ヤニ等の樹脂分が白色化しない斑
点となつて現れるのが防止されて、美麗な木目模
様を忠実に再現する事ができる事になる。 Furthermore, in general degreasing, the wood is treated at high temperature in an organic solvent to extract and remove the resin content, which causes the wood to turn dark in color. In this way, wood that has been discolored by degreasing cannot be made into a plain wood color no matter how much whitening resin composition is injected. WPC with toned makeup can be obtained. In addition, the degreasing treatment greatly expands the openings of wood vacuoles that had been narrowed by resin, resulting in the production of low molecular weight polymerizable synthetic resin monomers or oligomers.
Not only the prepolymer but also the thermoplastic synthetic resin polymer with a relatively large molecular weight is injected uniformly over the entire surface of the wood, and by polymerizing and curing this mixed resin liquid, the coniferous wood is decolored and uniformly whitened. This creates a resin body with a large number of voids inside the wood, giving the entire wood a uniform white wood look. This also prevents resin components such as tar from appearing as spots that do not turn white, making it possible to faithfully reproduce beautiful wood grain patterns.
更に、樹脂分を多く含む針葉樹材中のヤニ等の
混合樹脂液の硬化阻害成分が除去されて秋材部分
による木目の周辺での硬化不良による白色化の低
下が生じることがなく、木目が鮮明に現出されて
松類や桧類などの美麗な天然木の木目を損なうこ
となく木材全体を均一に白色化して透明感をなく
し、針葉樹材の木目模様を生かした白木調の着色
木材を得ることができる。 Furthermore, components that inhibit curing of the mixed resin liquid, such as tar in softwood materials containing a large amount of resin, are removed, so there is no reduction in whitening due to poor curing around the wood grain due to the autumn wood area, and the wood grain is clearer. By uniformly whitening the entire wood without damaging the grain of beautiful natural wood such as pine and cypress, it eliminates transparency and produces a white wood-like colored wood that takes advantage of the grain pattern of coniferous wood. be able to.
以上のように、第1段階として、松類、桧類の
針葉樹材を脱脂による脱色処理又は脱脂後に脱色
処理を行つて木材中の樹脂分を抽出除去すると共
に、材色を均一白色化した後、これに附加重合型
合成樹脂のモノマー又はオリゴマー、プレポリマ
ーより成る低分子樹脂液と熱可塑性合成樹脂のポ
リマーとの混合樹脂液を注入して木材空胞内に混
合樹脂液を均一に分散し、次いで該樹脂液を重合
硬化させて針葉樹材内部に多数の空隙が混在した
樹脂体を形成する事によつて始めて木材全体が均
一な白色化され、針葉樹材の木目模様を生かした
白木調の着色木材が得られるのである。 As mentioned above, in the first step, the coniferous wood of pine and cypress trees is decolorized by degreasing or decolorized after degreasing to extract and remove the resin content in the wood, and the color of the wood is uniformly whitened. A mixed resin liquid consisting of a low-molecular resin liquid consisting of monomers, oligomers, and prepolymers of addition-polymerized synthetic resins and a thermoplastic synthetic resin polymer is injected into this, and the mixed resin liquid is uniformly dispersed within the wood vacuoles. Then, by polymerizing and curing the resin liquid to form a resin body with a large number of voids mixed inside the softwood material, the entire wood is uniformly whitened and a white wood-like finish that takes advantage of the grain pattern of the softwood material is created. Colored wood is obtained.
また、本発明は混合樹脂液を木質材料に注入硬
化させることによつて木材細胞中に不均一系の樹
脂体を形成させるために、従来のW・P・Cとそ
の外観は異なつていても同様の性質を有するよう
になり、附加重合型合成樹脂としてモノマー、オ
リゴマーの熱可塑性のものを選択することによつ
て木質材料への樹脂注入が容易となり成形が楽に
できる一方、附加重合型合成樹脂に熱硬化性のも
のを採用した場合には耐熱性、耐薬品性、耐水
性、強度、耐摩耗性、硬度、寸法安定性等の各種
の物性が熱可塑性のものよりも優れた木材を得る
ことができ、その上、熱可塑性重合体を配合した
ことによつて注入樹脂の硬化時の収縮が抑えられ
ている為に従来のW・P・Cに比べて割れ、反
り、ねじれ等の発生が極めて少ない製品を得るこ
とができる。 In addition, since the present invention forms a heterogeneous resin body in wood cells by injecting and curing the mixed resin liquid into the wood material, its appearance is different from that of conventional W.P.C. By selecting a thermoplastic monomer or oligomer as the addition polymerization type synthetic resin, it becomes easier to inject the resin into wood materials and molding becomes easier. When thermosetting resin is used, wood with various physical properties such as heat resistance, chemical resistance, water resistance, strength, abrasion resistance, hardness, and dimensional stability is superior to thermoplastic resin. In addition, the inclusion of thermoplastic polymer suppresses the shrinkage of the injected resin during curing, making it less prone to cracking, warping, twisting, etc. compared to conventional W/P/C. A product with extremely low generation can be obtained.
さらに本発明によれば、このようにして得られ
る合成樹脂注入木質材料をその注入樹脂液の硬化
と同時に適宜の基材表面に容易に接着することが
できる。 Furthermore, according to the present invention, the synthetic resin-infused wood material thus obtained can be easily adhered to the surface of an appropriate base material at the same time as the injected resin liquid is cured.
なんとなれば、通常のW・P・Cは樹脂液の硬
化に際して収縮するために基材に同時に接着する
と木質材料と樹脂並びに基材の収縮率の差により
応力が生じ、割れや反り、ねじれ等が発生するが
本発明における合成樹脂注入木質材料は樹脂が硬
化によつて不均一系を形成し、該樹脂の界面が部
分的に不連続となつているために変形が容易とな
つて発生する応力を吸収でき、従つて割れや反
り、ねじれ等の発生が極めて小さくなつて注入樹
脂液の硬化と同時に基材への接着ができるもので
ある。 Normal W/P/C shrinks when the resin liquid hardens, so if it is bonded to the base material at the same time, stress will occur due to the difference in shrinkage rate between the wood material, the resin, and the base material, resulting in cracks, warping, twisting, etc. However, in the synthetic resin-infused wood material of the present invention, the resin forms a heterogeneous system as it hardens, and the interface of the resin is partially discontinuous, so deformation occurs easily. It is capable of absorbing stress, thereby minimizing the occurrence of cracks, warping, twisting, etc., and can be bonded to the substrate at the same time as the injected resin liquid is cured.
この場合、木質材料表面に付着した樹脂液の接
着性を利用できるために一般に接着剤は不要であ
るが、より大なる接着力を要する場合には接着剤
を併用してもよいことは勿論である。 In this case, an adhesive is generally not necessary because the adhesive properties of the resin liquid attached to the surface of the wood material can be used, but it is of course possible to use an adhesive in combination if a greater adhesive force is required. be.
次に本発明の実施例と比較例を示す。 Next, examples of the present invention and comparative examples will be shown.
実施例 1
1mm厚さの米松のスライス単板を2%濃度の
NaCO3水溶液中に30〜40℃の温度条件下で1時
間浸漬した後、水洗をして、さらに2%濃度の
(COOH)2水溶液中に約30℃の条件下で1時間浸
漬して中和し、次にこれを充分に水洗してから乾
燥し、単板中の樹脂分を除去した。Example 1 A sliced veneer of Japanese pine with a thickness of 1 mm was treated with a 2% concentration.
After immersing in a NaCO3 aqueous solution at a temperature of 30 to 40°C for 1 hour, washing with water, and further immersing in a 2% concentration (COOH) 2 aqueous solution at a temperature of approximately 30°C for 1 hour. This was thoroughly washed with water and then dried to remove the resin content in the veneer.
次に上記単板に不飽和ポリエステル(アルキツ
ド:スチレン=60:40)100部、スチレンモノマ
ー5部、B.P.O1部、酢酸ビニルポリマー20部の
混合樹脂液を10mmHgの減圧下で2時間注入し、
ホツト、プレスにて10Kg/cm2、130℃、30分の条
件下で加熱圧締して混合樹脂液を硬化させた。 Next, a mixed resin solution of 100 parts of unsaturated polyester (alkyd:styrene = 60:40), 5 parts of styrene monomer, 1 part of BPO, and 20 parts of vinyl acetate polymer was injected into the veneer for 2 hours under a reduced pressure of 10 mmHg.
The mixed resin liquid was cured by heating and pressing in a hot press at 10 kg/cm 2 at 130° C. for 30 minutes.
こうして得た着色木材の樹脂注入率は90%であ
つた。 The resin injection rate of the thus obtained colored wood was 90%.
樹脂注入率A−B/A×100
A:樹脂注入硬化後の単板の重量
B:樹脂注入硬化前の 〃
また上記着色木材の外観は、全体的に不透明の
白色を呈しており、白色の素地に米松の木目模様
が淡いクリームで鮮明に現出した白木調の外観で
あつた。 Resin injection rate A-B/A×100 A: Weight of veneer after resin injection and curing B: Before resin injection and curing In addition, the appearance of the above-mentioned colored wood is an opaque white color as a whole. It had a white wood-like appearance, with the grain pattern of Japanese pine clearly appearing in the pale cream on the base.
比較例 1
実施例1と同一単板を用いて脱色処理を行わず
その他の条件は同一にして混合樹脂液を注入硬化
させた。Comparative Example 1 Using the same veneer as in Example 1, a mixed resin liquid was injected and cured under the same conditions without decoloring.
こうして得た単板は樹脂注入率が20〜30%で樹
脂体中の空隙の発生が不均一で白色化の度合いに
斑があり、又、ヤニ分の多い秋目部分に該ヤニが
褐色の斑点となつて現出し、所によつてはヤニの
流出が生じて木目模様が部分的にボケて現出して
いた。 The thus obtained veneer had a resin injection rate of 20 to 30%, and the generation of voids in the resin body was uneven, and the degree of whitening was uneven.Also, the resin had a brownish color in the autumn part where there was a lot of resin. It appeared as spots, and in some places, the resin had flowed out and the wood grain pattern was partially blurred.
また、樹脂注入量の少ない秋目部分がほとんど
白色化されていないために該秋目部分が白地に濃
く現出し、素地との濃淡の差が著しく不自然な感
じを与えるものであつた。 In addition, since the autumnal part where the amount of resin injected was small was hardly whitened, the autumnal part appeared dark on the white background, and the difference in shading from the base gave an extremely unnatural feeling.
実施例 2
1mm厚さの米松のスライス単板を1%濃度の
NaOH水溶液中に30℃の温度条件下で20分浸漬
した後水洗をし、さらに2.4%濃度のNaClo溶液
中に20℃の温度条牛下で1時間浸漬し、次いで2
%濃度の(COOH)2水溶液中に30℃の条件下で1
時間浸漬して中和し、その後これを充分乾燥して
脱脂と漂白を同時に行つた。Example 2 A sliced veneer of Japanese pine with a thickness of 1 mm was treated with a concentration of 1%.
After being immersed in a NaOH aqueous solution for 20 minutes at 30°C, it was washed with water, and then immersed in a 2.4% NaCl solution for 1 hour at a temperature of 20°C.
% concentration of (COOH) 2 in an aqueous solution under conditions of 30 °C.
The material was soaked for a period of time to neutralize it, and then thoroughly dried to perform degreasing and bleaching at the same time.
次に、上記単板に不飽和ポリエステル(アルキ
ツド:スチレン=60:40)100部、スチレンモノ
マー5部、B.P.O1部、酢酸ビニルポリマー20部、
油性染料ブラウン0.03部の配合で配合した着色混
合樹脂液を10mmHgの減圧下で2時間注入し、つ
いでこれを接着剤を塗布した合板上に載置してホ
ツトプレスで10Kg/cm2、130℃、30分の条件下で
加熱圧締して混合樹脂液を硬化させた。 Next, 100 parts of unsaturated polyester (alkyd:styrene = 60:40), 5 parts of styrene monomer, 1 part of BPO, 20 parts of vinyl acetate polymer,
A colored mixed resin liquid containing 0.03 parts of oil dye Brown was injected for 2 hours under a reduced pressure of 10 mmHg, then placed on a plywood coated with adhesive and hot pressed at 10 kg/cm 2 at 130°C. The mixed resin liquid was cured by heating and pressing for 30 minutes.
こうして得た着色木材の樹脂注入率は90%で、
全体的に均一にピンクがかつた薄茶色を呈し、秋
目部分が淡黄色を呈した鮮明な木目模様で現出し
松の素材の味が表現された白木調の外観を呈して
いた。 The resin injection rate of the colored wood thus obtained was 90%.
The overall color was uniformly light brown with a hint of pink, and the autumn-grained parts had a clear wood grain pattern with pale yellow, giving it the appearance of white wood that expressed the taste of the pine material.
また、実施例1によつて得た着色木材は同一樹
脂の単板であつても心材部、辺材部の木材本来の
色調の差が現れる場合があるが、このように脱脂
を組み合わせて脱色処理を行うことによつて、こ
のような色調の差をなくすことが可能であり、
又、油性染料等の着色剤を用いて着色木材の色調
をコントロールし、さらに色巾の少ない均一な化
粧性を有するものを得ることができる。 In addition, even if the colored wood obtained in Example 1 is a veneer made of the same resin, there may be differences in the original color tone of the wood in the heartwood and sapwood parts. By performing processing, it is possible to eliminate such differences in color tone.
Furthermore, the color tone of colored wood can be controlled by using a coloring agent such as an oil-based dye, and it is possible to obtain a product having uniform cosmetic properties with less color width.
Claims (1)
又は脱脂後に脱色処理を行つて木材中の樹脂分を
抽出除去すると共に、材色を均一白色化した後、
これに附加重合型合成樹脂のモノマー又はオリゴ
マー、プレポリマーより成る低分子樹脂液と熱可
塑性合成樹脂のポリマーとの混合樹脂液を注入し
て木材空胞内に混合樹脂液を均一に分散し、次い
で該樹脂液を重合硬化させて針葉樹材内部に多数
の空隙が混在した樹脂体を形成することを特徴と
する着色木材の製造方法。 2 針葉樹材を脱色、脱脂処理した後、適宜の着
色材によつて着色することを特徴とする特許請求
の範囲第1項記載の着色木材の製造方法。 3 混合樹脂液が適宜着色剤で着色したものであ
ることを特徴とする特許請求の範囲第1項又は第
2項記載の着色木材の製造方法。[Scope of Claims] 1. After decolorizing coniferous wood of pine and cypress wood by degreasing or decolorizing after degreasing to extract and remove the resin content in the wood and uniformly whiten the wood color,
A mixed resin liquid consisting of a low-molecular resin liquid consisting of a monomer, an oligomer, or a prepolymer of an addition-polymerized synthetic resin and a thermoplastic synthetic resin polymer is injected into this, and the mixed resin liquid is uniformly dispersed within the wood vacuoles. A method for producing colored wood, which comprises then polymerizing and curing the resin liquid to form a resin body in which a large number of voids are mixed inside the softwood material. 2. The method for producing colored wood according to claim 1, which comprises bleaching and degreasing the coniferous wood and then coloring it with an appropriate coloring agent. 3. The method for producing colored wood according to claim 1 or 2, wherein the mixed resin liquid is colored with an appropriate colorant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1061279A JPS55101404A (en) | 1979-01-31 | 1979-01-31 | Preparation of colored wood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1061279A JPS55101404A (en) | 1979-01-31 | 1979-01-31 | Preparation of colored wood |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55101404A JPS55101404A (en) | 1980-08-02 |
JPH026614B2 true JPH026614B2 (en) | 1990-02-13 |
Family
ID=11755055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1061279A Granted JPS55101404A (en) | 1979-01-31 | 1979-01-31 | Preparation of colored wood |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55101404A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57212005A (en) * | 1981-06-23 | 1982-12-27 | Daiken Trade & Industry | Manufacture of reinforced decorative board |
JPS6025704A (en) * | 1983-07-23 | 1985-02-08 | 松下電工株式会社 | Manufacture of dyed veneer |
EP3381633B1 (en) * | 2017-02-24 | 2020-11-11 | Carlos Jose Mongalo Robleto | Automated and semi-automated process for staining wood with fluorescent dyes and pigments |
EP3396063A1 (en) * | 2017-04-26 | 2018-10-31 | ETH Zurich | Method for producing densified cellulosic composite material |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS588326A (en) * | 1981-07-06 | 1983-01-18 | Daihen Corp | Static type automatic voltage regulator |
-
1979
- 1979-01-31 JP JP1061279A patent/JPS55101404A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS588326A (en) * | 1981-07-06 | 1983-01-18 | Daihen Corp | Static type automatic voltage regulator |
Also Published As
Publication number | Publication date |
---|---|
JPS55101404A (en) | 1980-08-02 |
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