JPH06280376A - Building plate - Google Patents

Building plate

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Publication number
JPH06280376A
JPH06280376A JP9209593A JP9209593A JPH06280376A JP H06280376 A JPH06280376 A JP H06280376A JP 9209593 A JP9209593 A JP 9209593A JP 9209593 A JP9209593 A JP 9209593A JP H06280376 A JPH06280376 A JP H06280376A
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layer
wood
surface
back
wood veneer
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JP9209593A
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JP2733641B2 (en )
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Takeshi Yamamoto
毅 山本
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Noda Corp
株式会社ノダ
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Abstract

PURPOSE: To improve dimensional stability and workability by carbon fiber reinforced resin composite material on a wooden base plate.
CONSTITUTION: A laminated plate formed by integrally stacking a surface wood fiber layer 2, an intermediate wood veneer layer 3 and a back wood veneer layer 5 in order from the surface side is used as a base plate 1 for a building plate used in a flooring material or the like, a decorated sheet 6 is stuck to the surface of the base plate and a moisture-proof sheet 9 is stuck to the back thereof. The moisture-proof sheet 9 is of a three-layer structure where a polyethylene sheet 7 is used as a core layer, and kraft paper 8, 8' is stacked on the surface and back thereof, made adhere to the back wood veneer layer 5 of the base plate back at the surface kraft paper 8, and made adhere to the under floor ground at the back kraft paper 8'. In the base plate 1, both the fiber directions of the intermediate wood veneer layer 3 and the back wood veneer layer 5 are made parallel to the longitudinal direction of the flooring material.
COPYRIGHT: (C)1994,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は家屋の床材、天井材、壁材等に用いられる建築用板に関する。 The present invention relates to a flooring of the house, ceiling material, related to building plate to be used in the wall material and the like.

【0002】 [0002]

【従来技術】上記用途に用いられる建築用板として、基板表面に突板等の任意化粧シートを貼着してなる構成のものが公知である。 Of the Prior Art plate for construction used in the above applications, having a structure formed by sticking any decorative sheet veneer such on the substrate surface are known. 基板としては、単板をその繊維方向を互いに直交させて積層接着した合板や、単板の繊維方向を同一方向として積層接着した平行合板(L.V. As the substrate, a veneer plywood and laminated bonded by perpendicular to the fiber directions, laminating adhesive, parallel plywood fiber direction of the veneer as the same direction (L.V.
L. L. )が一般に用いられている。 ) It is generally used. これら合板は大きな寸法の板を多量に安定して供給することができ、また寸法安定性に優れているので、床材等に用いられる建築用板における基板として好適なものとされてきた。 These plywood can be supplied a large amount of stable plate of large dimensions, also because the excellent dimensional stability, has been a suitable as a substrate in the building plate used in the floor material or the like.

【0003】 [0003]

【発明が解決しようとする課題】これら合板は天然木材を薄く剥ぎ取った単板を積層接着して製造するものであるが、近年、天然資源の枯渇問題が世界的に大きく取り上げられ、合板の原材料となる原木を伐採することが次第に困難になると共に、原木の質が低下することによって、合板に使用するに適した良質の単板を多量に安定的に得ることが困難になってきている。 These plywood [0004] is intended to produce a veneer peeled thin natural wood laminated and adhered to, in recent years, depletion problems of natural resources is addressed globally large, plywood together can be cut down timber to be raw materials becomes increasingly difficult, by the quality of the wood is lowered, to obtain a veneer of quality in a large amount stably suitable for use in the plywood has become difficult . このため、品質の良い合板を多量に市場に安定供給することがかつてのように容易ではなくなりつつある。 For this reason, it is becoming rather than once as easily be stably supplied to the large amount of market good plywood quality. この問題は今後ますます深刻化することが予測され、建築用板の基材として合板に代えて使用し得る代替品の提供が熱望されている。 This problem has been eager future is expected to be increasingly serious, it provides a replacement which may be used in place of plywood as a substrate building board.

【0004】また、特にマンション等の建設現場でコンクリート下地上に直貼りされる床材として用いられる場合、コンクリートの一次硬化が完了して十分な強度を有するものとなった後も、コンクリート自体は高含水状態であるため、この水分が床材基板の裏面側に吸収されて裏面側を膨張させる傾向があるのに対し、表面側には一般に表面塗装が施された化粧シートが貼着されているため、表面側からの水分吸収はほとんどなされない。 Further, especially when used as a floor material which is bonded directly to a concrete base on the construction site, such as condominiums, even after becoming to have a sufficient strength primary curing is completed concrete, concrete itself since a high moisture state, whereas tends to inflate the backside this moisture is absorbed by the back surface side of the flooring substrate, generally surface coating is applied decorative sheet is adhered on the surface side because you are, moisture absorption from the surface side is not almost performed. 従って、床材の表面側と裏面側との膨張率が異なり、床材の幅方向において裏面側を凸とする反りが発生するという問題がある。 Therefore, different expansion coefficients of the front and rear side of the floor material, warpage convex back surface side in the width direction of the flooring there is a problem that occurs. この問題は、コンクリート下地への直貼り施工の場合に限らず、床材を施工した環境において湿度が上昇することによって大なり小なり発生するものである。 This problem is not limited to the case of direct attachment construction of the concrete foundation, in which humidity in an environment which was constructed the flooring more or less generated by rising.

【0005】 [0005]

【課題を解決するための手段】そこで本発明は、寸法安定性が良好であり、特に合板の代替品として使用し得る新規な積層板を基板とした場合にも優れた寸法安定性を有する建築用板を提供することを目的として鋭意工夫の末に完成されたものである。 SUMMARY OF THE INVENTION The present invention, dimensional stability is good, particularly building having excellent dimensional stability even when the substrate novel laminates which can be used as plywood substitute It has been completed at the end of the intensive devised for the purpose of providing a use plate.

【0006】即ち本発明による建築用板は、基板の裏面に、ポリエチレンシートを芯としてその表裏にクラフト紙を積層してなる防湿シートが貼着されてなることを特徴とする。 [0006] The present invention according to architectural plate, the back surface of the substrate, the moisture-proof sheet obtained by laminating kraft paper on both sides thereof a polyethylene sheet as a core is characterized by comprising been stuck.

【0007】基板には、従来より一般的に用いられている、単板をその繊維方向を互いに直交させて積層接着した合板や、単板の繊維方向を同一方向として積層接着した平行合板(L.V.L.)等を用いることができるが、好適には、表面側より表層木質繊維層、中層木質単板層、中層木質繊維層および裏層木質単板層の順で積層一体化されてなる基板が用いられる。 [0007] The substrate is commonly used conventionally, veneer plywood and laminated bonded by perpendicular to the fiber directions, laminating adhesive, parallel plywood fiber direction veneer as the same direction (L .V.L.) Although the like can be used, preferably, the surface layer wood fiber layer from the surface side, middle wood veneer layer is integrally laminated in this order middle wood fiber layer and the back layer wood veneer layer becomes Te substrate is used.

【0008】この場合の基板における中層木質単板層および裏層木質単板層に用いる木質単板としては、針葉樹又は広葉樹材の原木をロータリーレース、スライサー等の切削装置を用いて切削して得られる針葉樹単板又は広葉樹単板を用いることができる。 [0008] The resulting As the wood veneers used in the middle layer wood veneer layer and the back layer wood veneer layers in the substrate when the wood of coniferous or hardwood by cutting using a rotary race, the cutting device slicer such as it can be used softwood veneer or hardwood veneer is. これら針葉樹単板、広葉樹単板は板厚が0.2mm以上、好ましくは0.5〜 These softwood veneer, hardwood veneer sheet thickness is 0.2mm or more, preferably 0.5 to
5.5mmのものが用いられる。 Those of 5.5mm is used. 板厚が0.2mmに満たないと、特に床材として用いられる場合に必要な機械的強度を建築用板に与えることが困難であり、この見地より0.5mm以上の板厚であることが好ましい。 When the thickness is less than 0.2 mm, in particular it is difficult to impart necessary mechanical strength when used as a floor material building board, that is the plate thickness of more than 0.5mm from the standpoint preferable. 板厚が5.5mmを越えるものとなると、単板の水分の吸放湿に伴う収縮膨張が基板としての寸法安定化に影響を及ぼすこととなるので、好ましくない。 When the thickness become more than 5.5 mm, since the contraction and expansion due to moisture absorption and desorption of moisture veneer is affecting the dimensional stability of the substrate, which is not preferable. 中層木質単板層と裏層木質単板層における木質単板は同じ板厚のものであっても異なるものであっても良い。 Wood veneer in the middle wood veneer layer and the backing layer wood veneer layer may be different be of the same thickness. 異なる板厚とする場合、建築用板、特に床材としての機械的強度向上を目的とする場合には裏層木質単板層を厚くすることが好ましく、また寸法安定性を主眼とする場合には中層木質単板層を厚くすることが好ましい。 If a different thickness, building board, especially preferred thickening the backing layer wood veneer layers in the case of the purpose of improving mechanical strength of the flooring material, also in the case of the focus dimensional stability it is preferable to thicken the intermediate layer wood veneer layer.

【0009】これら中層木質単板層と裏層木質単板層の繊維方向は、好ましくは共に建築用板の長さ方向と平行となるように配される。 [0009] fiber direction of the middle layer wood veneer layer and the backing layer wood veneer layer is arranged preferably as both parallel to the longitudinal direction of the building board. 木質単板は繊維方向の曲げ強度および引張り強度が大きい性質を有するため、裏層木質単板層の繊維方向を基板長さ方向と一致させることにより、本発明の建築用板の裏面側において生ずる引張り負荷に対する耐久性が向上され、長さ方向の曲げ強度にも優れた特性を有するものとなる。 Since the wood veneer having a flexural strength and tensile strength is large nature of the fiber direction, whereby the fiber direction of the backing layer wood veneer layer is matched to the substrate longitudinal direction, occurs in the back surface side of the building board of the present invention is resistance to tensile load increase, and has excellent properties in bending strength in the longitudinal direction. 床材等の建築用板は、 Architectural board of flooring, etc.,
一般にその長さ方向端部を下地構造材により支持するように施工されるので、上記構成によって長さ方向の曲げ強度が向上させることによって床材等に用いるのに非常に適した板材を得ることができる。 Generally since the construction to support by its longitudinal ends to underlying structural material, to obtain a highly suitable sheet material for use in flooring, etc. by improving the bending strength in the longitudinal direction by the configuration can. 更に、中層木質単板層の繊維方向も裏層木質単板層の繊維方向と同じく建築用板の長さ方向と平行とすることにより、長さ方向の曲げ強度をより一層増大させることができる。 Moreover, by parallel to the longitudinal direction of the same with the fiber direction of the fiber direction backing layer wood veneer layer of the middle layer wood veneer layer building board, it is possible to further increase the bending strength in the longitudinal direction .

【0010】これら中層木質単板層および裏層木質単板層に用いる木質単板においては、フェノール樹脂処理、 [0010] In the wood veneer used for these intermediate wood veneer layer and the back layer wood veneer layer, a phenol resin treatment,
アセチル化処理、エステル化処理、ホルマル化処理、P Acetylation process, esterification process, formals treatment, P
EG(ポリエチレングリコール)処理、WPC(樹脂含浸)処理等を施して、基板の寸法安定性および機械的性質の向上を図ることができる。 EG (polyethylene glycol) process, can be subjected to WPC (resin-impregnated) treatment, etc., to improve the dimensional stability and mechanical properties of the substrate. また、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、ホウ酸等の公知の難燃化薬剤による防火処理を施した木質単板を用いることにより、防火機能をも有する建築用板が得られる。 Further, ammonium phosphate, nitrogen compounds, halogen compounds, sulfamic acid, by using a wood veneer having been subjected to fire protection by known flameproofing agents such as boric acid, obtained building plate also has a fire function It is. この防火処理は、例えば、難燃化薬剤に木質単板を浸漬する方法、木質単板の表面に難燃化薬剤を塗布する方法、加圧又は減圧下で木質単板に難燃化薬剤を注入する方法によって行うことができる。 The fire protection is, for example, a method of immersing the wood veneer in flame-retarding agent, the method of applying a flame retardant agent to the surface of the wood veneer, the pressure or flame-retardant agents in wood veneer in vacuo it can be accomplished by injecting.

【0011】一方、基板における表層木質繊維層および中層木質繊維層は、松、杉、桧等の針葉樹材、又はラワン、カポール、栗、ポプラ等の広葉樹材の原木や廃材を切削して得られる木材チップを常法により解繊して木質繊維を得、これを圧締成形して比重0.4以上、好ましくは0.5以上の木質繊維層として得られるものであり、単独ではハードボード、MDF(中質繊維板)等として知られているものである。 Meanwhile, the surface layer wood fiber layer and the middle layer wood fiber layer in the substrate, pine, cedar, softwood, such as Japanese cypress or lauan, obtained by cutting Kapoor, chestnuts, raw wood and waste of hardwood poplar, etc. give the wood fibers and wood chips and fibrillated by a conventional method, which pressing molded to a specific gravity of 0.4 or more, preferably one obtained as 0.5 or more wood fiber layer, hardboard alone, MDF is what is known as a (medium-density fiberboard) and the like. 木質繊維層には、その製造過程で生ずるサンダーダスト、ソーダスト、チップダスト等の屑材を混入することができる。 The wood fiber layer can be incorporated sander dust arising in a production process, Sawdust, a waste material such as chips dust. これら表層木質繊維層と中層木質繊維層とは同じ厚さであっても異なる厚さであっても良く、また比重についても同じであっても異なるものであっても良い。 These surface wood and fiber layer and the middle layer wood fiber layer may be also different thicknesses have the same thickness, or may be different even be the same for specific gravity.

【0012】このような木質繊維層は、含水率1%当たりの寸法変化率が0.03〜0.04%と極めて小さく、しかもいずれの方向においても略均等であって、優れた寸法安定性を有する。 [0012] Such wood fiber layer, dimensional change per 1% moisture content is extremely small as 0.03 to 0.04%, yet a substantially uniform in either direction, excellent dimensional stability having. 従って、中層木質繊維層を中層木質単板層と裏層木質単板層との間に介在させ更に表層木質繊維層を中層木質単板層の上面に積層させて基板を構成することにより、木質単板層における収縮膨張をこれら木質繊維層によって抑制することができ、極めて優れた寸法安定性を有する基板を得ることが可能となる。 Thus, by the middle wood fiber layer further surface wood fiber layer is interposed between the middle layer wood veneer layer and the backing layer wood veneer layer is laminated on the upper surface of the middle layer wood veneer layers constituting the substrate, wood the contraction and expansion of the veneer layer can be suppressed by these wood fiber layer, it is possible to obtain a substrate having excellent dimensional stability. ちなみに、合板の吸放湿による寸法変化率は含水率1%当たりにして0.02〜0.03%であるから、本発明において用いられる基板が合板に匹敵する優れた寸法安定性を有するものであることが理解される。 Incidentally, since the dimensional change rate due to Moisture plywood is from 0.02 to 0.03% by per 1% moisture content, which substrate used in the present invention has excellent dimensional stability comparable to plywood it is understood that.

【0013】基板の表層を木質繊維層で構成するのは次の理由による。 [0013] the following reasons to configure the surface layer of the substrate with wood fiber layer. 即ち、木質繊維層は木質単板よりも比重が高く圧縮強度が優れているため、表面への鉄球落下試験においても好結果を得ることができ、ハイヒールやキャスター等によって局所的に荷重が加えられても凹みにくいという特性を有するからである。 That is, since the wood fiber layer has excellent high compressive strength specific gravity than wood veneer, can also be obtained good results in iron ball drop test to the surface, is locally load by high heels or casters added is it because having the property that hardly dent also. また、本発明の建築用板が床材として用いられる場合にその表面に曲げ荷重が作用したとき、表面側において生ずる圧縮の負荷に対して表層木質繊維層が優れた耐圧縮性能を示すことにより、床材として長さ方向および幅方向における曲げ強度に優れた特性を有するものとなる。 Furthermore, when the building board of the present invention is applied is bending load on the surface when used as a floor material, by showing resistance to compression having excellent surface wood fiber layer to the load of compression generated in the surface side comes to have excellent properties in bending strength in the length direction and the width direction as a floor material. 更に、木質繊維層の有する優れた平滑性により、表層木質繊維層の表面に化粧シートを貼着し又は塗装処理等を施した場合の仕上がりが良好となる。 Furthermore, the excellent smoothness with a wood fiber layer, finish is improved when the decorative sheet was subjected to sticking or painting or the like on the surface of the surface layer the wood fiber layer.

【0014】これら表層木質繊維層および中層木質繊維層に用いる木質繊維層においては、前記中層木質単板層および裏層木質単板層に用いる木質単板におけると同様に、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処理、WPC処理等を施して、基板の寸法安定性および機械的性質の向上を図ることができる。 [0014] In the wood fiber layer used in these surface wood fiber layer and the middle layer wood fiber layer, as in the wood veneer for use in the intermediate layer wood veneer layer and the back layer wood veneer layer, a phenol resin treatment, acetylation process, esterification process, formals treatment, PEG treatment, subjected to WPC treatment or the like, it is possible to improve the dimensional stability and mechanical properties of the substrate. これらの処理は、例えば、針葉樹材又は広葉樹材のチップを常法に従って解繊し乾燥した木質繊維の段階で常法によって行うことができ、得られた処理木質繊維を用いて木質繊維層を製造する。 These processes, for example, a chip softwood or hardwood can be carried out by a conventional method at the stage of defibration and dried wood fibers in a conventional manner, producing a wood fiber layer using a processing wood fibers obtained to. また、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、ホウ酸等の公知の難燃化薬剤による防火処理を施した木質繊維を用いて木質繊維層を製造することにより、防火機能をも有する建築用板が得られる。 Further, ammonium phosphate, nitrogen compounds, halogen compounds, sulfamic acid, by producing wood fiber layer using a wood fiber subjected to fire protection by known flameproofing agents such as boric acid, also fire function building board having is obtained.

【0015】このようにして表面側から表層木質繊維層、中層木質単板層、中層木質繊維層および裏層木質単板層が順次積層されてなる基板の表面に貼着され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、不織布、 [0015] In this way the surface wood fiber layer from the surface side, middle wood veneer layer, a decorative sheet middle wood fiber layer and the back layer wood veneer layer is adhered sequentially laminated becomes the surface of the substrate such as natural veneer obtained by cutting the natural wood having a thickness of about 0.2 to 3 mm, artificial veneer, nonwoven,
紙、合成樹脂シート等のシート状物で裏打ちした突板シート、20〜40g/m の化粧紙、32〜500g/ Paper, veneer sheets lined with sheet of synthetic resin sheet, 20 to 40 g / m 2 of the decorative sheet, 32~500G /
の不織布、50g/m のパーチメント紙等において任意の柄模様印刷や単色の塗装が施されたもの等が例示される。 m 2 nonwoven, such as those arbitrary pattern pattern printing or monochromatic paint in parchment paper or the like of 50 g / m 2 has been performed is illustrated. これらの化粧シートには、基板に貼着した後、任意の上塗り処理を施すことができる。 These decorative sheet, after bonded to the substrate can be subjected to any overcoating process. 基板表面に対する化粧シートの貼着は、例えば酢酸ビニル樹脂等の熱可塑性接着剤に、耐水性向上のために熱硬化性樹脂又は尿素粉末等を混入したものを用いて行うことができる。 Adhering the decorative sheet to the substrate surface, for example, a thermoplastic adhesive such as a vinyl acetate resin, can be carried out using those mixed with thermosetting resin or urea powder and the like for improving water resistance. 化粧シートの貼着面は、吸放湿による収縮膨張が小さな木質繊維層(表層木質繊維層)で構成されているため、化粧シートとして突板シートを用いた場合にも突板に割れが生じにくい。 Attaching surface of the decorative sheet, since the contraction and expansion due to moisture absorption and desorption is constituted by a small wood fiber layer (surface layer wood fiber layer), sliced ​​veneer in unlikely to occur cracks even when using veneer sheets as decorative sheet.

【0016】基板の裏面には、ポリエチレンシートを芯としてその表裏にクラフト紙を積層してなる防湿シートが貼着される。 [0016] On the back of the substrate, the moisture-proof sheet obtained by laminating kraft paper on both sides thereof a polyethylene sheet as a core is attached. このような防湿シートは、ポリエチレンシートの表裏面に各々クラフト紙を積層した後、加熱圧着して熱融着することによって得られる。 Such moisture-proof sheet, after each laminating kraft paper on both surfaces of the polyethylene sheet is obtained by thermal fusion bonded under heat.

【0017】防湿シートとしてこのような3層構造のものを用いることにより、基板における裏層木質単板層への水分吸収が芯層のポリエチレン層によって防止されると共に、ポリエチレンシートの表裏面にクラフト紙層が存在することで基板裏面への接着剤による接着強度が良好となるため、一般的なラミネータ装置により簡単に貼着することができる。 [0017] By using those such three-layer structure as a moisture sheet, with the moisture absorption of the backing layer wood veneer layer in the substrate is prevented by the polyethylene layer of the core layer, craft to the front and back surfaces of the polyethylene sheet since the bonding strength by the adhesive to the back surface of the substrate by a paper layer exists is improved, it can be easily attached by a general laminator. また、施工下地への接着剤塗布により十分に下地面との接着強度を得ることができる。 Further, it is possible to obtain a bonding strength sufficiently underlying surface by the adhesive application to the construction base.

【0018】基板と防湿シートとの間または防湿シートの裏面には、更に合成樹脂発泡体、不織布、天然又は合成ゴム等の緩衝機能を有するシート材を貼着することにより、防音性能、断熱性能等を付与し、或いは歩行感を向上させることができる。 [0018] On the back or between the moisture-proof sheet between the substrate and the moisture-proof sheet, further synthetic resin foam, a nonwoven fabric, by adhering a sheet material having a buffering function, such as natural or synthetic rubber, soundproof performance, thermal insulation performance the grant, or it is possible to improve the walking feeling, etc.

【0019】また、本発明の建築用板を施工する際に隣接する建築用板同士を嵌合させるための手段として、建築用板の側面には必要に応じて本実加工や相決り加工等の実加工が施される。 Further, as means for fitting the building plate adjacent in the time of construction of the building board of the present invention, if necessary on the side of the building board the actual machining and phase determined processing, etc. actual machining is performed of.

【0020】本発明の建築用板は例えば以下のようにして製造される。 The building board of the present invention is produced as follows, for example. 即ち、予め製造した木質繊維板および木質単板を準備し、木質繊維板を表層木質繊維層および中層木質繊維層として用いると共に木質単板を中層木質単板および裏層木質単板として用いて、これらを表面側より表層木質繊維層、中層木質単板層、中層木質繊維層、 That is, prepare the prefabricated wood fiber board and wood veneer, with a woody veneer as intermediate wood veneer and backing layer wood veneer with use of wood fiber board as the surface layer the wood fiber layer and the middle layer wood fiber layer, surface wood fiber layer from these surfaces side, middle wood veneer layer, middle wood fiber layer,
裏層木質単板層の順に接着剤を介して積層接着し、常法に従ってプレスすることによって基板を得る。 Laminated via an adhesive in the order of the back layer wood veneer layers, to obtain a substrate by pressing according to a conventional method. 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、更にその上に表裏面に接着剤を塗布した別の木質単板を載せ、 Further, in the manufacturing process of the wood fiber board, using a wood fiber mat obtained by provisionally clamped cutting those deposited wood fibers coated dried adhesive by forming device onto a screen belt to a predetermined size, Place the the wood fibrous mat on a wood veneer with adhesive applied to the surface side, further put another wood veneer with adhesive applied on the front and rear surfaces thereon,
最後に別の木質繊維マットを載せた後に、熱圧プレスすることによっても、基板を得ることができる。 After placing another wood fiber mat Finally, also by hot pressing, it is possible to obtain a substrate. 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ができ、熱圧締も一回(ワンショット)で済む等工業的に有利であり、しかも得られた基板における木質繊維層と木質単板層との間の接着力が極めて大きなものとなる。 This method can be used as it is the manufacturing lines of a conventional wood fiber board, hot press is also equal industrially advantageous requires only once (one-shot), yet the resulting wood fiber layer and the wood in the substrate adhesion between the veneer layer becomes extremely large. 他に、スクリーンベルト上に木質単板を載せて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、更に該木質繊維の上に別の木質単板を載せた後、更にフォーミング装置にて木質繊維を堆積させ、次いで、 Otherwise, after inserting the forming apparatus by placing the wood veneer on the screen belt, to deposit the wood fibers to the wooden quality veneer on, carrying another wood veneer further onto the wood-fiber, further forming depositing a wood fiber in device, then,
一定寸法に切断した後に仮圧締し熱圧プレスするか或いは切断することなく仮圧締して連続して熱圧締した後に切断する方法、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、該木質繊維上に木質単板を載せ、次に該木質単板上にフォーミング装置にて別の木質繊維を堆積し、更に該木質繊維上に別の木質単板を載せた後、一定寸法に切断した後に仮圧締し熱圧プレスするか或いは切断することなく仮圧締して連続して熱圧締した後に切断する方法、等の任意の方法によって本発明の構成の基板を得ることができる。 Method of cutting after hot press in succession temporarily pressing without temporary clamping and hot pressure press or cut after cut to size, after depositing the wood fibers on a screen belt by forming device , loaded with wood veneer on the wood-fiber, then depositing another wood fiber at forming device to the wooden quality veneer on, after placing another wood veneer further the wood quality on the fibers, certain dimensions to obtain a substrate structure of the present invention after cutting method of cutting after hot press in succession temporarily clamping without or cut temporary clamping to hot pressure pressing, by any method equal to can.

【0021】このようにして得られた基板の表面に接着剤を介して化粧シートを貼着すると共に、裏面に接着剤を介して防湿シートを貼着することによって本発明の建築用板が得られる。 [0021] obtained with this manner adhering the decorative sheet through the adhesive agent to the surface of the substrate obtained, the building board of the present invention by adhering the moisture-proof sheet through the adhesive to the back surface It is. また、上記基板の製造において木質繊維と木質単板とを組み合わせて製造する際に、化粧シートおよび/または防湿シートも同時に載置積層した後に圧締接着しても良い。 Further, when manufacturing by combining a wood fiber and wood veneer in the manufacture of the substrate, the decorative sheet and / or moisture-proof sheet may also be press bonding after placing laminated simultaneously.

【0022】 [0022]

【実施例】図1は本発明による建築用板の一実施例としての床材の構成を示すものであり、表面側より表層木質繊維層2、中層木質単板層3、中層木質繊維層4、裏層木質単板層5の順に積層接着されてなる基板1の表面に化粧シート6が貼着されると共に、基板1の裏面にはポリエチレンシート7を芯としてその表裏にクラフト紙8、8'が積層されてなる防湿シート9が貼着されてなる。 DETAILED DESCRIPTION FIG. 1 shows the structure of a flooring according to an embodiment of the building board according to the present invention, the surface layer wood fiber layer 2 from the surface side, middle wood veneer layer 3, intermediate layer wood fibers layer 4 , kraft paper 8,8 with decorative sheet 6 laminated adhesive has been made the surface of the substrate 1 in the order of the backing layer wood veneer layer 5 is adhered to the front and back as a core of polyethylene sheet 7 on the back surface of the substrate 1 moisture-proof sheet 9 'are laminated is formed by sticking. 図中、10は雄実、11は雌実であって、これら雄実および雌実同士の嵌合によって床材を連接施工し得るように構成されている。 In the figure, 10 is Omi, 11 is a Mesumi, and is configured to be connected construction flooring by fitting these Omi and female fruit together.

【0023】 [0023]

【発明の効果】本発明による建築用板は、基板の表面に化粧シートが貼着されてなるものにおいて裏面に防湿シートが貼着されているため、水分吸収による膨張率が表裏において実質的に均衡され、反りの発生が防止される。 The present invention by building board according to the present invention, since the moisture-proof sheet is stuck to the back surface in which the decorative sheet to the surface of the substrate is formed by adhering, substantially expansion due to moisture absorption in the front and back are balanced, occurrence of warpage is prevented.

【0024】本発明はまた、基板として従来使用されている合板の単板の一部を木質繊維層に置換してなる新規な構成の積層板を用いることを提案するものであり、これら木質繊維層は単板としては使用できないような欠点のある原木であっても小さく破砕或いは解繊したものを用いて得られるため、資源の有効利用および自然破壊の防止に役立つ。 [0024] The present invention also is to propose the use of laminates of novel structure that a part of the veneer of plywood that is conventionally used as a substrate formed by replacing the wood fiber layer, these wood fibers since the layer is obtained by using a material obtained by small crushed or disintegrated even wood with drawbacks which can not be used as a single plate, help prevent the effective use and destruction of nature resources.

【0025】これら木質繊維層は本来的に寸法安定性および機械的強度に優れたものであるため、単板に代えて用いても、合板に比して遜色のない特性が得られる。 [0025] Since these wood fiber layer is excellent in the inherently dimensional stability and mechanical strength, it is used in place of the single plate, in no way inferior properties is obtained as compared with plywood. また、基板の中層木質単板層と裏層木質単板層の繊維方向を共に建築用板の長さ方向に平行とすることにより、長さ方向の寸法安定性および機械的強度が更に向上され、 Further, with the parallel to the length direction of both building board fiber direction of the middle layer wood veneer layer and the backing layer wood veneer layer of the substrate, dimensional stability and mechanical strength in the longitudinal direction is further improved ,
これら単板層の間および表層面に木質繊維層が配されることと相俟って、特に長さ方向において極めて優れた寸法安定性および強度特性を発揮することができ、床材として使用する場合に好適なものとなる。 These during and surface layer of the veneer layers I that coupled with the wood fiber layer is arranged, it can exhibit an extremely excellent dimensional stability and strength properties, particularly in the longitudinal direction, for use as flooring It becomes suitable in the case.

【0026】基板の表層面には平滑性に優れ、機械的強度が大きく、吸放湿による収縮膨張が小さい木質繊維層が配されるため、化粧シートの貼着が容易であり、床材として使用された場合に局所的な荷重に耐え、更には化粧シートとして突板シートを用いた場合にも収縮膨張の影響による突板の割れが生じにくくなる等の効果を有する。 [0026] The surface layer of the substrate superior in smoothness, mechanical strength is large, because the contraction and expansion is less wood fiber layer due to moisture absorption and is arranged, it is easy to sticking of the decorative sheet, as flooring withstand localized loads when used, even cracking of the veneer due to the influence of even contraction and expansion in the case of using the sliced ​​veneer sheet as a cosmetic sheet has the effect of such less likely to occur.

【0027】基板の裏面に貼着される防湿シートは、ポリエチレンシートを芯としてその表裏にクラフト紙が積層一体化されてなる3層構造のものであり、芯層のポリエチレンシートによる防水効果に加えて、表裏面におけるクラフト紙が基板裏面および下地面に対する良好な接着強度を発揮する。 The moistureproof sheet is adhered to the back surface of the substrate is of three-layer structure kraft paper on the front and back surfaces of the polyethylene sheet as a core is formed by integrally laminating, in addition to waterproof effect by polyethylene sheet of the core layer Te, kraft paper at the front and back surfaces to exhibit good adhesion strength to the substrate back surface and the underlying surface.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施例による床材の構成を示す斜視図である。 1 is a perspective view showing the structure of a flooring according to an embodiment of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 基板 2 表層木質繊維層 3 中層木質単板層 4 中層木質繊維層 5 裏層木質単板層 6 化粧シート 7 ポリエチレンシート 8、8' クラフト紙 9 防湿シート 10 雄実 11 雌実 1 substrate 2 surface wood fibers layer 3 intermediate wood veneer layer 4 middle wood fiber layer 5 back layer wood veneer layer 6 decorative sheet 7 polyethylene sheet 8, 8 'kraft paper 9 moistureproof sheet 10 Omi 11 Mesumi

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl. 5識別記号 庁内整理番号 FI 技術表示箇所 B32B 27/10 8413−4F 27/32 Z 8115−4F ────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. 5 in identification symbol Agency Docket No. FI art display portion B32B 27/10 8413-4F 27/32 Z 8115-4F

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 基板の裏面に、ポリエチレンシートを芯としてその表裏にクラフト紙を積層してなる防湿シートが貼着されてなることを特徴とする建築用板。 1. A on the back surface of the substrate, building board moisture-proof sheet obtained by laminating kraft paper on both sides thereof a polyethylene sheet as a core is characterized by comprising been stuck.
  2. 【請求項2】 表面側より表層木質繊維層、中層木質単板層、中層木質繊維層および裏層木質単板層の順で積層一体化されてなる基板の表面に、化粧シートが貼着されると共に、前記基板の裏面に、ポリエチレンシートを芯としてその表裏にクラフト紙を積層してなる防湿シートが貼着されてなることを特徴とする建築用板。 Surface wood fiber layer than 2. A surface, middle wood veneer layer, in this order in a stacked integrated becomes the surface of the substrate of the middle wood fiber layer and the back layer wood veneer layer, the decorative sheet is attached Rutotomoni, on the back surface of the substrate, for building, characterized in that the moisture-proof sheet obtained by laminating kraft paper on both sides thereof a polyethylene sheet as a core is formed by attached plate.
  3. 【請求項3】 表面側より表層木質繊維層、中層木質単板層、中層木質繊維層および裏層木質単板層の順で積層一体化され、前記中層木質単板層および裏層木質単板層の繊維方向が共に建築用板の長さ方向と平行となるように積層されてなる基板の表面に、化粧シートが貼着されると共に、前記基板の裏面に、ポリエチレンシートを芯としてその表裏にクラフト紙を積層してなる防湿シートが貼着されてなることを特徴とする建築用板。 Surface wood fiber layer than 3. A surface side, middle wood veneer layer is integrally laminated in this order middle wood fiber layer and the back layer wood veneer layer, the middle layer wood veneer layer and the back layer wood veneer the surface of the substrate fiber direction of the layers are laminated such that both parallel to the longitudinal direction of the building board, the decorative sheet is attached, on the rear surface of the substrate, the front and back of the polyethylene sheet as a core building board moisture-proof sheet obtained by laminating kraft paper is characterized by comprising been adhered to.
JP9209593A 1993-03-26 1993-03-26 Building board Expired - Fee Related JP2733641B2 (en)

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JP2010242484A (en) * 2008-07-22 2010-10-28 Dainippon Printing Co Ltd Decorative material for flooring
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US7866115B2 (en) * 2002-03-20 2011-01-11 Valinge Innovation Ab Floorboards with decorative grooves
US8381488B2 (en) 2002-04-08 2013-02-26 Valinge Innovation Ab Floorboards for floorings
US8720151B2 (en) 2002-04-08 2014-05-13 Valinge Innovation Ab Floorboards for flooring
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US9663956B2 (en) 2012-07-02 2017-05-30 Ceraloc Innovation Ab Panel forming
US9975267B2 (en) 2013-08-27 2018-05-22 Valinge Innovation Ab Method for producing a lamella core
CN105799007A (en) * 2016-05-09 2016-07-27 南京林业大学 Composite plate strip and manufacturing method thereof

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