JPH0612011U - Laminate - Google Patents
LaminateInfo
- Publication number
- JPH0612011U JPH0612011U JP11092091U JP11092091U JPH0612011U JP H0612011 U JPH0612011 U JP H0612011U JP 11092091 U JP11092091 U JP 11092091U JP 11092091 U JP11092091 U JP 11092091U JP H0612011 U JPH0612011 U JP H0612011U
- Authority
- JP
- Japan
- Prior art keywords
- wood
- layer
- veneer
- wood fiber
- fiber
- 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
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 73
- 239000002025 wood fiber Substances 0.000 claims abstract description 73
- 239000002023 wood Substances 0.000 claims abstract description 59
- 239000011122 softwood Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 19
- 238000010030 laminating Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 13
- 239000011120 plywood Substances 0.000 abstract description 10
- 238000011282 treatment Methods 0.000 description 21
- 238000005452 bending Methods 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000011121 hardwood Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000004254 Ammonium phosphate Substances 0.000 description 2
- 241000218645 Cedrus Species 0.000 description 2
- 241000218691 Cupressaceae Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
- 238000006640 acetylation reaction Methods 0.000 description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 2
- 235000019289 ammonium phosphates Nutrition 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 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
- 230000000694 effects Effects 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000012757 flame retardant agent Substances 0.000 description 2
- 150000002366 halogen compounds Chemical class 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- 241000270281 Coluber constrictor Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- OQZCSNDVOWYALR-UHFFFAOYSA-N flurochloridone Chemical compound FC(F)(F)C1=CC=CC(N2C(C(Cl)C(CCl)C2)=O)=C1 OQZCSNDVOWYALR-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011088 parchment paper Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】
【目的】合板の代替品として使用できる積層板を提供す
ること。合板として使用できない品質の悪い原木から得
た木質繊維を前記積層板の構成要素として利用するこ
と。
【構成】表面側より表層木質繊維層１、中層木質単板層
３、中層木質繊維層２、裏層木質単板層４の順で積層一
体化されてなる積層板の、表層木質繊維層１および中層
木質繊維層２が針葉樹材を原料とする木質繊維からなる
積層板。
(57) [Abstract] [Purpose] To provide a laminated board that can be used as a substitute for plywood. Utilizing wood fibers obtained from poor quality raw wood that cannot be used as plywood as a component of the laminate. [Structure] A surface wood fiber layer 1 of a laminated plate in which a surface wood fiber layer 1, a middle wood veneer layer 3, a middle wood fiber layer 2 and a back wood veneer layer 4 are laminated in this order from the front side. And a laminated board in which the middle-layer wood fiber layer 2 is composed of wood fibers made of a softwood material.
Description
【０００１】[0001]
本考案は、構造材料を始め建築の表装、内装および家具等に使用される積層板 に関する。 The present invention relates to a laminated board used for structural materials, as well as for building exteriors, interiors and furniture.
【０００２】[0002]
積層板は、単板をその繊維方向を互いに直交にさせて積層接着した合板、単板 の繊維方向を同一方向に積層接着した平行合板（Ｌ．Ｖ．Ｌ．）などが知られて おり、挽材では得られない大きな寸法の板を多量に安定して供給することができ 、しかも寸法安定性にも優れているなど、現在の建築材料の一材料としてなくて はならないものである。 Laminated boards are known such as plywood in which single fibers are laminated and bonded with their fiber directions orthogonal to each other, and parallel plywood (L.V.L.) in which the fiber directions of single plates are laminated and bonded in the same direction. It is an indispensable part of today's building materials because it can stably supply a large amount of large-sized boards that cannot be obtained from sawn timber and has excellent dimensional stability.
【０００３】[0003]
しかし、この合板は、天然木材を薄く剥ぎ取った単板を積層接着し製造するた め、天然資源の枯渇問題が世界的に大きく取り上げられ、原材料である原木を伐 採することが困難になると共に、原木の質が低下することによって、単板に使用 する良質の単板を多量に得ることが難しくなり、品質の良い合板を多量に市場に 供給することが困難となる。この問題は今後ますます深刻化することが予測され 、合板に代わる代替え品の提供が熱望されている。 However, since this plywood is manufactured by laminating and bonding veneers from which thin pieces of natural wood have been peeled off, the problem of depletion of natural resources has been widely taken up worldwide, making it difficult to cut down the raw material raw wood. At the same time, the quality of the raw wood deteriorates, making it difficult to obtain a large amount of good quality veneer used for veneer, and to supply a large amount of good quality plywood to the market. This problem is expected to become more serious in the future, and there is a strong desire to provide an alternative to plywood.
【０００４】[0004]
本考案は、合板の代替え品として使用できる新規な積層板を提供することを目 的として鋭意工夫の結果完成されたものである。 The present invention has been completed as a result of earnest efforts for the purpose of providing a novel laminated plate that can be used as a substitute for plywood.
【０００５】 すなわち本考案は、図１に示すような構成であり、表面側より表層木質繊維層 １、中層木質単板層３、中層木質繊維層２、裏層木質単板層４の順で積層一体化 されてなる積層板であり、表層木質繊維層１および中層木質繊維層２が針葉樹材 を原料とする木質繊維からなるものである。That is, the present invention has a structure as shown in FIG. 1, and the surface wood fiber layer 1, the middle wood veneer layer 3, the middle wood fiber layer 2, and the back wood veneer layer 4 are arranged in this order from the surface side. It is a laminated plate integrally laminated, and the surface wood fiber layer 1 and the middle wood fiber layer 2 are composed of wood fibers made from softwood.
【０００６】 積層板の中層木質単板層３および裏層木質単板層４に用いる木質単板として は、針葉樹材、広葉樹材の原木をロータリーレース、スライサーなど切削装置を 用いて切削して得られる針葉樹単板および広葉樹単板を用いることができる。The wood veneer used for the middle-layer wood veneer layer 3 and the back-layer wood veneer layer 4 of the laminated plate is obtained by cutting a coniferous or hardwood log using a cutting device such as a rotary racer or a slicer. Softwood veneers and hardwood veneers used can be used.
【０００７】 針葉樹単板、広葉樹単板は板厚が０．２ｍｍ以上、好ましくは０．５〜５．５ ｍｍのものが用いられる。板厚が０．２ｍｍ以下であると、積層板としての機械 的強度の向上に付与しない。０．５ｍｍ以上のものであれば強度の向上に付与す る。また、５．５ｍｍ以上になると単板の水分の吸放湿に伴う収縮膨張が積層板 としての寸法安定化に影響を及ぼすものとなる。As the softwood veneer and the hardwood veneer, those having a plate thickness of 0.2 mm or more, preferably 0.5 to 5.5 mm are used. When the plate thickness is 0.2 mm or less, it does not contribute to the improvement of the mechanical strength of the laminated plate. If it is 0.5 mm or more, the strength is improved. Further, when the thickness is 5.5 mm or more, the shrinkage and expansion accompanying the absorption and release of moisture from the veneer affects the dimensional stability of the laminate.
【０００８】 中層木質単板層３と裏層木質単板層４の繊維方向は互いに平行あるいは直交す るように配することができる。The fiber directions of the middle-layer wood veneer layer 3 and the back-layer wood veneer layer 4 can be arranged so as to be parallel or orthogonal to each other.
【０００９】 しかし一般に木質単板は、吸放湿することにより単板の繊維方向に平行方向の 収縮膨張に比べ、繊維方向に垂直方向の収縮膨張が５から２０倍と大きく、繊維 方向に対し平行方向と垂直方向との変化率が大きく異なる。However, in general, the wood veneer has a contraction and expansion in the direction perpendicular to the fiber direction which is 5 to 20 times larger than the contraction and expansion in the direction parallel to the fiber direction of the veneer by absorbing and releasing moisture. The rate of change between the parallel direction and the vertical direction is significantly different.
【００１０】 このため、中層木質単板層３と裏層木質単板層４の繊維方向を直交するように 配置することにより、吸放湿による単板の繊維方向に対し垂直方向への収縮膨張 の動きをお互いに抑制する効果が生じ、積層板の長さ方向と幅方向の収縮膨張が 均等となり、積層板としての寸法安定性に優れたものとなる。Therefore, by arranging the middle-layer wood veneer layer 3 and the back-layer wood veneer layer 4 so that the fiber directions thereof are orthogonal to each other, shrinkage and expansion in the direction perpendicular to the fiber direction of the veneer due to moisture absorption and desorption. The effects of mutually suppressing the movements of the laminated plates are produced, the contraction and expansion of the laminated plate in the length direction and the width direction are made uniform, and the dimensional stability of the laminated plate is excellent.
【００１１】 さらに、裏層木質単板層４の繊維方向が、積層板の長さ方向と平行となるよう に配することにより、機械的強度の面において、木質単板は繊維方向に平行方向 に曲げ強度および引っ張り強度が強いという性質を有するため、本考案の長さ方 向に曲げ荷重が掛かった際に、裏面側において生ずる引っ張り負荷に対する耐久 性が向上し、積層板としての長さ方向の曲げ強さに優れた特性を有するものとな る。Furthermore, by arranging the fiber veneer of the back layer wood veneer layer 4 so as to be parallel to the length direction of the laminated plate, the wood veneer has a direction parallel to the fiber direction in terms of mechanical strength. Since it has a high bending strength and a high tensile strength, when a bending load is applied in the length direction of the present invention, the durability against the tensile load generated on the back side is improved and It has excellent bending strength.
【００１２】 このため、一般に長さ方向端部を下地構造材により支持するよう施工する床材 のように、長さ方向の曲げ強度が要求される基板として用いるのに非常に適した 板材となる。Therefore, it is a plate material that is very suitable for use as a substrate that generally requires bending strength in the length direction, such as a floor material that is constructed so that the end portions in the length direction are supported by the underlying structural material. .
【００１３】 また、中層木質単板層３および裏層木質単板層４に用いる木質単板として、フ ェノール樹脂処理、アセチル化処理、エステル化処理、ホルマル化処理、ＰＥＧ （ポリエチレングリコール）処理または、ＷＰＣ化処理（樹脂含浸）等の処理を 施し寸法安定性および機械的性質の向上を図ったものを用いることにより、積層 板の曲げ強度、寸法安定性はさらに優れたものが得られる。Further, as the wood veneers used for the middle-layer wood veneer layer 3 and the back wood veneer layer 4, a phenol resin treatment, an acetylation treatment, an esterification treatment, a formalization treatment, a PEG (polyethylene glycol) treatment or By using a material that has been subjected to a WPC treatment (resin impregnation) or the like to improve the dimensional stability and mechanical properties, a laminate having even more excellent bending strength and dimensional stability can be obtained.
【００１４】 さらに、木質単板としてリン酸アンモニウム、リン窒素化合物、ハロゲン化合 物、スルファミン酸、ホウ酸などの難燃化薬剤による処理を施した単板を用いる ことにより防火機能をも有する積層板が得られる。Furthermore, by using a wood veneer as a wood veneer, a veneer treated with a flame retardant agent such as ammonium phosphate, a phosphorus nitrogen compound, a halogen compound, sulfamic acid, boric acid, etc. Is obtained.
【００１５】 これらの処理は、防火薬剤に単板を浸漬する方法、薬剤を塗布する方法あるい は加圧、減圧下で薬剤を注入することにより行なわれる。These treatments are carried out by immersing the veneer in a fireproofing agent, coating the agent, or injecting the agent under pressure or reduced pressure.
【００１６】 また積層板の表層木質繊維層１および中層木質繊維層２に用いる木質繊維とし ては、松、杉、桧等の針葉樹材の原木または廃材を切削した木材チップを常法に より解繊して得られる針葉樹材を原料とする木質繊誰を圧締成型した比重０．４ 以上好ましくは０．５以上の木質繊維層で、単独ではハードボード、ＭＤＦ等と して知られているものである。As the wood fiber used for the surface wood fiber layer 1 and the middle wood fiber layer 2 of the laminated board, wood chips obtained by cutting raw wood or waste wood of coniferous wood such as pine, cedar, and cypress are prepared by a conventional method. A wood fiber layer obtained by pressing and molding a softwood material obtained by fiberizing, and having a specific gravity of 0.4 or more, preferably 0.5 or more. It is known as a hardboard, MDF, etc. by itself. It is a thing.
【００１７】 また、この木質繊維層には、木質繊維板製造の際に生じるサンダーダスト、ソ ーダスト、チップダスト等の屑材を混入し用いることもできる。これら木質繊維 層は、単独で含水率１％当たりの寸法変化率が長さ方向と幅方向が均等で０．０ ３〜０．０４％と優れた安定性を有するものであるため、前記中層木質単板層３ と裏層木質単板層４をその繊維方向が直交するように配することによる木質単板 層同志の収縮膨張の抑制作用に、木質繊維層の安定性が加えられることにより、 さらに寸法安定性に優れた性質を有する積層板となり、積層板としての吸放湿に よる寸法変化率が含水率１％当たり０．０２〜０．０３％という優れた寸法安定 性を有する合板の性能に匹敵するものである。In addition, waste materials such as sander dust, soot dust, and chip dust produced during the production of the wood fiber board can be mixed and used in the wood fiber layer. These wood fiber layers have excellent stability such that the dimensional change rate per 1% of water content is 0.03 to 0.04% evenly in the length direction and the width direction. By arranging the wood veneer layer 3 and the back wood veneer layer 4 so that their fiber directions are orthogonal to each other, the stability of the wood fiber layer is added to the action of suppressing the contraction and expansion of the wood veneer layers. Plywood with excellent dimensional stability, with a dimensional change rate of 0.02 to 0.03% per 1% moisture content due to moisture absorption and desorption as a laminated plate. Is comparable to the performance of.
【００１８】 また、機械的強度の面において、木質繊維層は木質単板よりも比重が高く圧縮 および剪断強度が優れている。このため、表面への鉄球の落下試験、ハイヒール およびキャスター等による局所的に荷重が加わっても凹みにくい。Further, in terms of mechanical strength, the wood fiber layer has a higher specific gravity than the wood veneer and is excellent in compression and shear strength. For this reason, even if a drop test of an iron ball on the surface or a local load such as high heels and casters is locally applied, it is difficult to dent.
【００１９】 また、針葉樹材を原料とする木質繊維は、繊維が細く長いため繊維間の絡み合 いが強く同一の熱圧条件で圧締した場合は、広葉樹材を原料とする木質繊維を用 いたものに比べ、比重が高く、圧縮強度、曲げ強度共に優れた性質を有する。In addition, the wood fiber made from softwood is a thin and long fiber, and the fibers are thin and long, so that the entanglement between fibers is strong, and when they are pressed under the same heat and pressure condition, the wood fiber made from hardwood is used. It has a higher specific gravity and superior compressive strength and bending strength compared to the conventional ones.
【００２０】 したがって、本願考案の積層板に曲げ荷重が掛かった際に、表面側において平 面方向の圧縮の付加が作用するが、針葉樹材を原料とする木質繊維からなる表層 木質繊維層１が優れた平面方向の耐圧縮性能を示し、積層板としての長さ方向お よび幅方向における曲げ強さに優れた特性を有するものとなる。Therefore, when a bending load is applied to the laminated board of the present invention, the addition of compression in the plane direction acts on the surface side, but the surface wood fiber layer 1 made of wood fiber made from softwood is used as the raw material. It exhibits excellent compression resistance in the plane direction and has excellent properties in bending strength in the length direction and width direction as a laminated plate.
【００２１】 さらに、平滑性および加工性にも優れた木質繊維層が表面に配されているため 、化粧シートの貼着あるいは塗装処理等を施しても優れた仕上がりが得られ、ま た、任意方向への切削加工が容易に施すことができる。Further, since the wood fiber layer having excellent smoothness and processability is disposed on the surface, an excellent finish can be obtained even when a decorative sheet is attached or a coating treatment is applied, and it is optional. The cutting work in the direction can be easily performed.
【００２２】 また、本考案の木質繊維層は針葉樹材を原料とする木質繊維からなり、広葉樹 材を原料とする木質繊維に比べ繊維が細く長く白色系であるため、表層木質繊維 層１は、表面が平滑で白色系となり、その後の表面化粧として塗装による表面化 粧処理および薄い突板、化粧紙などの接着化粧処理を施すのに非常に適したもの となる。Further, since the wood fiber layer of the present invention is made of wood fibers made of softwood, and the fibers are thinner and longer and whiter than wood fibers made of hardwood, the surface wood fiber layer 1 is The surface is smooth and white, which makes it very suitable for subsequent surface makeup treatments such as painting and adhesive makeup treatments such as thin veneer and decorative paper.
【００２３】 また、表層木質繊維層１および中層木質繊維層２に用いる木質繊維層として、 フェノール樹脂処理、アセチル化処理、エステル化処理、ホルマル化処理、ＰＥ Ｇ（ポリエチレングリコール）処理または、ＷＰＣ化処理（樹脂含浸）等の処理 を施し寸法安定性および機械的性質の向上を施したものを用いることにより、積 層板の曲げ強度、寸法安定性はさらに優れたものが得られる。As the wood fiber layers used for the surface wood fiber layer 1 and the middle wood fiber layer 2, phenol resin treatment, acetylation treatment, esterification treatment, formalization treatment, PEG (polyethylene glycol) treatment, or WPC treatment By using a material that has been subjected to a treatment (resin impregnation) or the like to have improved dimensional stability and mechanical properties, it is possible to obtain a laminated board having even more excellent bending strength and dimensional stability.
【００２４】 これらの処理は、例えば、松、杉、桧等の針葉樹材または、ラワン、カポール 、栗、ポプラ等の広葉樹材をチップにした後、常法に従い解繊し、乾燥した木質 繊維の段階で常法により上記の処理を行ない、得られた木質繊維を用いて木質繊 維層を製造することによってなされる。These treatments are carried out, for example, by cutting softwood materials such as pine, cedar, and cypress or hardwood materials such as Lauan, Kapole, chestnut, and poplar into chips, and then defibrating them according to a conventional method to obtain dried wood fibers. At the stage, the above treatment is carried out by a conventional method, and the obtained wood fiber is used to produce a wood fiber layer.
【００２５】 さらに、木質繊維層としてリン酸アンモニウム、リン窒素化合物、ハロゲン化 合物、スルファミン酸、ホウ酸などの難燃化薬剤による処理を施した木質繊維を 用いることにより防火機能をも有する積層板が得られる。これらの処理は、前記 寸法安定性および機械的性質向上の処理と同様に行なわれる。Furthermore, a laminate having a fireproof function by using a wood fiber treated with a flame retardant agent such as ammonium phosphate, a phosphorus nitrogen compound, a halogen compound, sulfamic acid and boric acid as a wood fiber layer. A board is obtained. These treatments are performed in the same manner as the treatments for improving the dimensional stability and mechanical properties.
【００２６】 本考案の積層板は、例えば、予め製造した木質繊維板および木質単板を用い、 表面側より表層木質繊維層１、中層木質単板層３、中層木質繊維層２、裏層木質 単板層４の順で接着剤を介して積層し、常法に従いプレスすることにより得られ る。The laminated board of the present invention uses, for example, a pre-manufactured wood fiber board and wood veneer, and from the surface side, the surface wood fiber layer 1, the middle wood veneer layer 3, the middle wood fiber layer 2, the back wood It is obtained by laminating the veneer layers 4 in this order via an adhesive and pressing them according to a conventional method.
【００２７】 また、木質繊維板の製造工程において、フォーミング装置により接着剤を塗布 乾燥された木質繊維をスクリーンベルト上に堆積したものを一定寸法に切断し仮 圧締することにより得られる木質繊維マットを用い、表面側に接着剤を塗布した 木質単板の上に該木質繊維マットを載せ、さらにその上に表裏面に接着剤を塗布 した木質単板を載せ、最後に木質繊維マットを載せた後、熱圧プレスすることに より積層板を製造することができる。Further, in the manufacturing process of the wood fiber board, a wood fiber mat obtained by applying an adhesive with a forming device and depositing dried wood fibers on a screen belt is cut into a certain size and temporarily pressed. Using the above, the wood fiber mat was placed on the wood veneer with the adhesive applied on the front side, the wood veneer with the adhesive applied on the front and back was placed on it, and finally the wood fiber mat was placed. Then, a laminated board can be manufactured by hot pressing.
【００２８】 この方法は従来の木質繊維板の製造ラインをそのまま利用することもでき、熱 圧締も一回（ワンショット）で積層板ができるなど工業的に有利な方法である。This method is an industrially advantageous method such that the conventional production line of wood fiber board can be used as it is and the laminated board can be formed by thermal compression once (one shot).
【００２９】 また、得られた積層板の木質繊維層と木質単板との間の接着力も非常に優れた ものが得られる。Further, it is also possible to obtain an extremely excellent adhesive force between the wood fiber layer of the obtained laminated plate and the wood veneer.
【００３０】 他に、スクリーンベルト上に木質単板を乗せフォーミング装置に挿入し、該木 質単板上に木質繊維を堆積し次に木質繊維上に木質単板をのせた後、さらにフォ ーミング装置にて木質繊維を堆積した後、一定間隔に切断し、仮圧締し熱圧プレ スするか、切断することなく仮圧締し連続して熱圧締した後切断することにより 積層板にするか、あるいはフォーミング装置によりスクリーンベルト上に木質繊 維を堆積した後木質繊維上に木質単板をのせ、次に木質単板上にフォーミング装 置にて木質繊維を堆積し、更に木質繊維上に木質単板をのせた後一定幅に切断し 仮圧締し熱圧プレスするか、切断することなく仮圧締し連続プレスした後切断す ることにより積層板とする方法が考えられる。In addition, a wood veneer is placed on the screen belt and inserted into a forming device, wood fibers are deposited on the wood veneer, and then the wood veneer is placed on the wood fiber, and then the forming is further performed. After the wood fibers are deposited by the device, they are cut at regular intervals and temporarily pressed and hot pressed, or they are temporarily pressed without cutting and continuously hot pressed and then cut into laminated plates. Or deposit wood fibers on the screen belt with a forming device, then place wood veneer on the wood fibers, then deposit the wood fibers on the wood veneers with a forming device, and then deposit the wood fibers on the wood fibers. A method of making a laminated board by placing a wood veneer on it and then cutting it to a certain width and temporarily pressing and hot pressing, or by temporarily pressing without cutting and continuously pressing and then cutting is considered.
【００３１】 このような、木質繊維マットを用いた方法、あるいは木質単板の上に木質繊維 を堆積した後に、一括プレスする方法において、中層木質単板層の厚さを２ｍｍ 厚以上の単板で構成することにより、プレスした際に中層木質単板層が波打状に 変形することがなく好ましい。In such a method using a wood fiber mat or a method in which wood fibers are deposited on a wood veneer and then collectively pressed, the middle-layer wood veneer layer has a thickness of 2 mm or more. It is preferable that the middle-layer wood veneer layer is not deformed in a wavy shape when pressed.
【００３２】 また、本考案の積層板の表面に必要により化粧シートを接着する。接着する化 粧シートとしては、例えば厚み０．２−３ｍｍ程度の天然木材を切削して得られ る天然突板、人工突板、および不織布、紙、合成樹脂シートを裏打ちした突板シ ート、または、２０−４０ｇ／ｍ２の化粧紙、３２−５００ｇ／ｍ２の不織布、 ５０ｇ／ｍ２のパーチメント紙等の柄模様印刷や単色の塗装が施されたもの、あ るいは、化粧シート接着後、上塗り工程を設けることもできる。If necessary, a decorative sheet is attached to the surface of the laminated plate of the present invention. As the decorative sheet to be adhered, for example, a natural veneer obtained by cutting natural wood having a thickness of about 0.2 to 3 mm, an artificial veneer, and a veneer sheet lined with a nonwoven fabric, paper, or a synthetic resin sheet, or 20-40g / m 2 of decorative paper, which 32-500g / m 2 of non-woven fabric, the pattern pattern printing and monochromatic painting of parchment paper or the like of 50g / m 2 has been subjected to, or, after the decorative sheet adhesive, A top coat process can also be provided.
【００３３】 これら化粧シートの接着は、熱可塑性接着剤例えば酢酸ビニル樹脂等に耐水性 向上のために熱硬化性樹脂または尿素粉末等を混入したものを用いることができ る。For adhesion of these decorative sheets, a thermoplastic adhesive such as vinyl acetate resin mixed with a thermosetting resin or urea powder for improving water resistance can be used.
【００３４】 また、本考案の積層板は、突板単板を貼着した場合でも、積層板表面の表層木 質繊維層１の吸放湿による収縮膨張が小さいため突板単板に割れが生ずることが ない。また、針葉樹材を原料とする木質繊維が白色系であるため、その上に施す 化粧シートとして、任意の色調のものを選択することができる。Further, in the laminated plate of the present invention, even when the veneer veneer is stuck, the veneer veneer may be cracked because the shrinkage and expansion of the surface wood fiber layer 1 on the surface of the laminated plate due to moisture absorption and desorption is small. There is no. Further, since the wood fiber made from the softwood material is white, the decorative sheet to be applied thereon can be selected in any color tone.
【００３５】[0035]
本考案による積層板は、従来の合板の単板の一部を木質繊維層におきかえ、こ れら木質繊維層は単板として使用できない欠点のある原木を小さく破砕あるいは 解繊したものを用いて得られるものであるため、資源の有効利用となり自然破壊 の防止に役立つことができる。 In the laminated board according to the present invention, a part of a conventional plywood veneer is replaced with a wood fiber layer, and these wood fiber layers are obtained by crushing or defibrating raw wood having a defect that cannot be used as a veneer. Because it is obtained, it can be used effectively for resources and can help prevent the destruction of nature.
【００３６】 また、中層木質単板層３と裏層木質単板層２を繊維方向が直交するように配す ることにより幅方向および長さ方向の寸法安定性に優れ、機械的強度も長さ方向 および幅方向共に曲げ強度に優れ、これら単板層の間および表裏面に木質繊維層 が配されることによりさらに寸法安定性の優れたものとなる。By arranging the middle-layer wood veneer layer 3 and the back-layer wood veneer layer 2 so that the fiber directions are orthogonal to each other, the dimensional stability in the width direction and the length direction is excellent, and the mechanical strength is also long. The bending strength is excellent in both the width direction and the width direction, and the dimensional stability is further improved by arranging the wood fiber layers between the veneer layers and on the front and back surfaces.
【００３７】 本考案の積層板表面に曲げ荷重がかかった際に、この曲げ荷重は、表面側にお いて圧縮付加、裏面側において引っ張り付加となって作用するが、針葉樹材を原 料とする木質繊維からなる表層木質繊維層１の平面方向の圧縮強度が優れ、裏面 側の裏層木質単板層４が引っ張り強度が優れるため、総合的に曲げ強度が優れた 積層板となる。また、裏層木質単板層４の繊維方向を積層板の長さ方向に平行と することにより、特に長さ方向の曲げ強度が優れたものとなる。When a bending load is applied to the surface of the laminated plate of the present invention, the bending load acts as a compression addition on the front surface side and a tensile addition on the back surface side, but the softwood material is used as the raw material. Since the compressive strength of the surface wood fiber layer 1 made of wood fibers in the plane direction is excellent, and the back wood veneer layer 4 on the back surface side has excellent tensile strength, it is a laminated plate having excellent bending strength as a whole. In addition, by making the fiber direction of the back layer wood veneer layer 4 parallel to the length direction of the laminated plate, the bending strength particularly in the length direction becomes excellent.
【００３８】 また、積層板の表面は針葉樹材を原料とする木質繊維層により構成されるため 、厚さ方向の圧縮強度が強く、平滑性にも優れた仕上がりが得られ、また、任意 方向への切削加工が容易に施すことができる。Further, since the surface of the laminated plate is constituted by a wood fiber layer made of a softwood material as a raw material, the compressive strength in the thickness direction is strong, a finish excellent in smoothness can be obtained, and the laminate can be made in any direction. Can be easily cut.
【００３９】 さらに、表層木質繊維層１は吸放湿による収縮膨張が小さいため、表面に突板 シートを貼着しても割れが生じにくいなど優れた特性を有するものである。Further, since the surface wood fiber layer 1 has a small shrinkage and expansion due to moisture absorption and desorption, it has excellent properties such that cracks do not easily occur even if a veneer sheet is stuck on the surface.
【図１】 本考案積層板の断面図、FIG. 1 is a sectional view of the laminated plate of the present invention,
１：表層木質繊維層、２：中層木質繊維層、３：中層木
質単板層、４：裏層木質単板層。1: Surface wood fiber layer, 2: Middle wood fiber layer, 3: Middle wood veneer layer, 4: Back wood veneer layer.
Claims (3)
単板層３、中層木質繊維層２、裏層木質単板層４の順で
積層一体化されてなる積層板の、表層木質繊維層１およ
び中層木質繊維層２が針葉樹材を原料とする木質繊維か
らなることを特徴とする積層板。1. A surface wood fiber of a laminated plate formed by laminating a surface wood fiber layer 1, a middle wood veneer layer 3, a middle wood fiber layer 2, and a back wood veneer layer 4 in this order from the surface side. A laminated board characterized in that the layer 1 and the middle-layer wood fiber layer 2 are made of wood fibers made of softwood.
繊維方向が直交するように配されてなる請求項１記載の
積層板。2. The laminated board according to claim 1, wherein the middle-layer wood veneer layer 3 and the back-layer wood veneer layer 4 are arranged so that the fiber directions thereof are orthogonal to each other.
長手方向と平行方向に配されてなる請求項１記載の積層
板。3. The laminated board according to claim 1, wherein the fiber direction of the backing wood veneer layer 4 is arranged parallel to the longitudinal direction of the laminated board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991110920U JP2549259Y2 (en) | 1991-11-20 | 1991-11-20 | Laminated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991110920U JP2549259Y2 (en) | 1991-11-20 | 1991-11-20 | Laminated board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0612011U true JPH0612011U (en) | 1994-02-15 |
| JP2549259Y2 JP2549259Y2 (en) | 1997-09-30 |
Family
ID=14547983
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991110920U Expired - Fee Related JP2549259Y2 (en) | 1991-11-20 | 1991-11-20 | Laminated board |
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| Country | Link |
|---|---|
| JP (1) | JP2549259Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110315Y1 (en) * | 1970-04-24 | 1976-03-18 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129102A (en) * | 1983-12-15 | 1985-07-10 | Fujirebio Inc | Preparation of lyophilized product |
-
1991
- 1991-11-20 JP JP1991110920U patent/JP2549259Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129102A (en) * | 1983-12-15 | 1985-07-10 | Fujirebio Inc | Preparation of lyophilized product |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110315Y1 (en) * | 1970-04-24 | 1976-03-18 |
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| JP2549259Y2 (en) | 1997-09-30 |
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