JP2007009483A - Impairment resistance/high stiffness woody compound flooring and its manufacturing method - Google Patents
Impairment resistance/high stiffness woody compound flooring and its manufacturing method Download PDFInfo
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Abstract
Description
本発明は耐傷性に優れ、硬度が高く、ホルムアルデヒド等のＶＯＣが低減され、環境負荷の少ない木質複合床材、および、その製造方法に関する。 The present invention relates to a wood composite flooring material having excellent scratch resistance, high hardness, reduced VOC such as formaldehyde, and less environmental burden, and a method for producing the same.
近年、カポール材等の高比重南洋材合板を安定して入手することが困難になり、床材の耐傷性や硬度が低下し、傷や凹みに対する消費者からのクレームが増加している。また、シックハウスの原因となるＶＯＣの低減や、環境問題への意識の高まりから、リサイクル素材や、植林材の使用が求められている。
低比重合板を使用して、床材の耐傷性・硬度の向上方法として、あるいは、植林材である針葉樹合板等を使用して表面性の優れる床材を製造する方法として、合板表面にＭＤＦを積層した台板を使用することがなされている。しかしながら、この方法では、充分な耐傷性・硬度、表面性を得ようとすると、ＭＤＦの厚みが厚くなり、床材の重量が増加する、寸法安定性が悪化して伸びや反りが問題となるなどの問題点がある。
また、高弾性率の合成樹脂層で裏打ちされた化粧紙、印刷フィルム用いて、床材の耐傷性・硬度を向上する方法も試みられてきた（特許文献１〜３）が、若干の効果はあるものの、低比重合板を台板に使用した場合には、十分な耐傷性と硬度が得られない問題点があった。
In recent years, it has become difficult to stably obtain high specific gravity South Sea plywood such as capol material, the scratch resistance and hardness of flooring materials have been reduced, and consumer complaints regarding scratches and dents have increased. In addition, the use of recycled materials and afforestation materials is required because of the reduction of VOC that causes sick houses and the growing awareness of environmental issues.
MDF is applied to the plywood surface as a method for improving the scratch resistance and hardness of the flooring material by using a low specific polymer board, or as a method for producing a flooring material having excellent surface properties by using softwood plywood or the like as a plantation material. Laminated base plates are used. However, in this method, if sufficient scratch resistance / hardness and surface properties are to be obtained, the thickness of the MDF increases, the weight of the flooring increases, the dimensional stability deteriorates, and elongation and warpage become a problem. There are problems such as.
In addition, a method for improving the scratch resistance and hardness of a flooring using a decorative paper and a printing film lined with a synthetic resin layer having a high elastic modulus has been tried (Patent Documents 1 to 3). However, when a low specific polymerization plate is used for the base plate, there is a problem that sufficient scratch resistance and hardness cannot be obtained.
本発明は、これらの従来技術では成し得なかった、低比重合板や植林材合板を使用しても、耐傷性・硬度に優れ、かつ床材の重量が増加したり、寸法安定性が低下することの無い複合床材およびその製造方法を提供せんとするものである。 The present invention is excellent in scratch resistance and hardness, increases the weight of the flooring, and decreases in dimensional stability even when using a low specific polymerization board or afforestation material plywood that could not be achieved by these conventional techniques. It is an object of the present invention to provide a composite flooring that does not need to be produced and a method for producing the same.
本発明者らは、鋭意研究の結果、合板の上にオーバーレイを施して木質系床材を製造するに際して、特定の硬質プラスチック層と特定の含水率の天然木化粧単板（突き板）を用い、かつその積層間に吸水層を設けることにより、所期の目的に適うものが得られることを見出して本発明を完成させた。
すなわち本発明は、Ａ）合板層、Ｂ）厚さ0.1mm〜0.3mmの範囲の硬質プラスチック層、Ｃ）その積層直前の含水率が繊維飽和点（約30質量%）以上である天然木化粧単板（つき
板）層の順に、積層され、塗装仕上げしてなる木質複合床材において、Ａ）、Ｂ）間および／または、Ｂ）、Ｃ）間に吸水層が設けられてなる耐傷性・高硬度木質複合床材に関するものである。
As a result of diligent research, the inventors of the present invention used a specific hard plastic layer and a natural wood decorative veneer (a veneer) having a specific moisture content when producing a wooden floor material by overlaying a plywood. In addition, the present invention has been completed by finding that a water-absorbing layer is provided between the laminated layers to obtain a product suitable for the intended purpose.
That is, the present invention includes A) a plywood layer, B) a hard plastic layer having a thickness in the range of 0.1 mm to 0.3 mm, and C) a natural wood makeup having a moisture content just before the lamination is not less than the fiber saturation point (about 30% by mass). Scratch resistance in which a water-absorbing layer is provided between A) and B) and / or B) and C) in a wood composite flooring laminated and painted in the order of a single plate (attached plate) layer -It relates to hard wood composite flooring.
本発明によれば、耐傷性に優れ、硬度が高く、軽くて寸法安定性が良く、加えてホルムアルデヒド等のＶＯＣが低減され、環境負荷の少ない木質複合床材を提供できる。 According to the present invention, it is possible to provide a wood composite flooring that has excellent scratch resistance, high hardness, light weight and good dimensional stability, and further reduces VOCs such as formaldehyde and has little environmental load.
本発明に用いる合板としては、ベニヤ（単板）を積層したもので、通常奇数枚のベニヤを繊維方向が直交するように積層したものが主に用いられるが、偶数枚積層したもの、一
部が平行に積層されたもの、ランバーコアを用いたもの、一部のベニヤの代わりに、他の木質材料を用いたもの等も必要に応じて用いて良い。
用いる合板は、環境への負荷低減の意味合いから、材積の50%以上が植林材であること
が望ましい。
また、本発明の効果を最大限に発揮するためには、軽く、寸法安定性に優れる密度600kg/m3以下の低比重合板を用いることが望ましい。
なお、ＶＯＣ低減の目的で、合板に使用される接着剤は、ホルムアルデヒド放散量の少ないフェノール樹脂接着剤を用いることが望ましい。
The plywood used in the present invention is a laminate of veneers (single plates), and usually a laminate of odd-numbered veneers so that the fiber directions are orthogonal to each other. May be used as needed, such as those laminated in parallel, those using a lumbar core, those using other wood materials instead of some veneers.
The plywood used is preferably planted with more than 50% of the volume of material in view of reducing environmental impact.
In order to maximize the effects of the present invention, it is desirable to use a low specific polymerization plate that is light and has a density of 600 kg / m 3 or less that is excellent in dimensional stability.
For the purpose of reducing VOC, it is desirable to use a phenol resin adhesive having a small formaldehyde emission amount as the adhesive used for the plywood.
本発明において、所期の目的を達成するためには、高含水率の天然木化粧単板を接着することが必須であり、更にはプラスチック層と木材層（合板層・天然木化粧単板層）との接着において、接着剤中の水分の拡散を容易にして接着を可能にするためには、吸水層を設ける必要がある。
吸水層としては、紙および／またはでん粉を主成分とする水性接着剤を用いることが好ましい。
紙としては、パルプを原料とする通常の紙に加え、合成繊維、無機繊維等を混抄したものや、不織布なども使用できる。用いられる紙の坪量は、特に限定されないが、経済性や剥がしにくさを求める場合には20〜30g/m2のものを用いると良く、廃棄時に木材層とプラスチック層を分離して、リサイクルもしくはリユースしやすくする目的には、30g/m2以上のものを用いると良い。リサイクル・リユース性を付与しようとした場合には、特に、Ａ）層とＢ）層の間に紙層を設けることが望ましい。
吸水層としては、でん粉を主成分とする水性接着剤を用いることもできる。ここでいうでん粉とは、とうもろこしでん粉、馬鈴薯でん粉、小麦でん粉などのでん粉や、小麦粉、米粉、とうもろこし粉などのでん粉質を主とする穀物粉が例示される。これらを、固形分中50%以上含むように、他の水性接着剤に配合して用いても良い。
In the present invention, in order to achieve the intended purpose, it is essential to bond a natural wood veneer veneer with a high water content. Furthermore, a plastic layer and a wood layer (plywood layer / natural wood veneer veneer layer) In order to facilitate the diffusion of moisture in the adhesive and enable the adhesion, it is necessary to provide a water absorbing layer.
As the water absorbing layer, it is preferable to use a water-based adhesive mainly composed of paper and / or starch.
As paper, in addition to ordinary paper made from pulp, a mixture of synthetic fibers, inorganic fibers, or the like, or a nonwoven fabric can be used. The basis weight of the paper used is not particularly limited, but when economical and difficult to peel off, 20-30 g / m 2 is good. Separate and recycle the wood layer and plastic layer at the time of disposal. Alternatively, for the purpose of facilitating reuse, it is better to use a product of 30 g / m 2 or more. When recyclability / reusability is to be imparted, it is particularly desirable to provide a paper layer between the A) layer and the B) layer.
As the water absorbing layer, an aqueous adhesive mainly composed of starch can also be used. Examples of the starch here include starch such as corn starch, potato starch, and wheat starch, and cereal flour mainly composed of starch such as wheat flour, rice flour, and corn flour. You may mix | blend and use these for another water-based adhesive so that 50% or more may be included in solid content.
本発明には、Ｂ）層として硬質プラスチック層を有することが必須である。用いる硬質プラスチックとしては、例えば、ポリエチレンテレフタレート、ポリスチレン、ポリプロピレン、高密度ポリエチレン、ポリアミド、ポリ塩化ビニルなどが挙げられ、これらのプラスチックの１種を用いて、または２種以上をフィルムまたはコーティング被膜の形態で積層あるいは複合して所望の硬質層を形成しても良い。環境への負荷低減の意味合いから、リサイクルプラスチックを原料に用いたものが望ましい。硬質プラスチック層の厚さは、0.1mm〜0.3mmの範囲が望ましい。0.1mm未満では、十分な硬度・耐衝撃性が得られず、0.3mmを超えても効果の増大が少なく、コスト高となる。 In the present invention, it is essential to have a hard plastic layer as the layer B). Examples of the hard plastic to be used include polyethylene terephthalate, polystyrene, polypropylene, high density polyethylene, polyamide, polyvinyl chloride and the like. One kind of these plastics is used, or two or more kinds are in the form of a film or a coating film. The desired hard layer may be formed by laminating or combining. From the viewpoint of reducing environmental impact, it is desirable to use recycled plastic as a raw material. The thickness of the hard plastic layer is preferably in the range of 0.1 mm to 0.3 mm. If it is less than 0.1 mm, sufficient hardness and impact resistance cannot be obtained, and if it exceeds 0.3 mm, the effect is little increased and the cost is increased.
本発明には、その積層直前の含水率が繊維飽和点（約30質量%）以上である天然木化粧
単板（つき板）層を有することが必須である。含水率が繊維飽和点未満のものを用いた場合には、十分な硬度・耐衝撃性が得られない。さらに、優れた硬度・耐衝撃性を得るためには、繊維飽和点（約30質量%）以上である天然木化粧単板（つき板）層とプラスチック
層との接着方法としては、80℃以上の温度および0.1MPa以上の加圧下で熱圧接着する方法が好ましい。
本発明において、上記飽和点以上の天然木化粧単板（濡れ単板）を用い、この単板面に塗膜層を設けることにより、本発明の複合床材は硬度と落球試験においてクラックを押さえ、また、吸水層と共に熱圧することにより、単板が圧密化され高強度となる。
吸水層がないと単板の圧密化が起きず、強度を向上させることができない。密度の低い合板を使用すると寸法安定性は向上する一方で強度は相対的に低下するが、本発明の複合床材は、両者を両立し得る。
In the present invention, it is essential to have a natural wood decorative veneer (attached board) layer whose moisture content immediately before lamination is equal to or higher than the fiber saturation point (about 30% by mass). When the water content is less than the fiber saturation point, sufficient hardness and impact resistance cannot be obtained. Furthermore, in order to obtain excellent hardness and impact resistance, the bonding method between the natural wood decorative veneer (attached board) layer with a fiber saturation point (about 30% by mass) or more and the plastic layer is 80 ° C or higher. The method of hot-pressure bonding under a temperature of 0.1 MPa and a pressure of 0.1 MPa or more is preferred.
In the present invention, a natural wood decorative veneer (wet veneer) above the saturation point is used, and a coating layer is provided on the veneer surface, whereby the composite flooring of the present invention suppresses cracks in hardness and falling ball tests. Moreover, by pressing together with the water absorption layer, the veneer is consolidated and becomes high strength.
If there is no water absorption layer, consolidation of the single plate does not occur and the strength cannot be improved. When a plywood having a low density is used, the dimensional stability is improved while the strength is relatively lowered. However, the composite flooring of the present invention can achieve both.
本発明の複合木質床材を製造する好ましい態様として以下の方法を例示するが、もとよりこれらに限定されることはない。
１：Ａ）合板層に、Ｂ） 厚さ0.1mm〜0.3mmの範囲の硬質プラスチック層を冷圧接着加工
もしくはラミネート加工した後、吸水層として紙をラミネート加工し、さらにＣ）積層直前の含水率が繊維飽和点（約30質量%）以上である天然木化粧単板（つき板）層を、でん
粉を主成分とする有機充填剤を5〜60質量％含んでなる水性接着剤を用いて80℃以上の温
度および0.1MPa以上の加圧下熱圧接着し、塗装仕上げ処理を施す。
２：Ａ）合板層に、Ｂ） 厚さ0.1mm〜0.3mmの範囲の硬質プラスチック層を冷圧接着加工
もしくはラミネート加工した後、吸水層として、でん粉を主成分とする有機充填剤を主成分とする水性接着剤層を介して、C)積層直前の含水率が繊維飽和点（約30質量%）以上で
ある天然木化粧単板（つき板）層を、80℃以上の温度および0.1MPa以上の加圧下熱圧接着し、塗装仕上げ処理を施す。
３：紙からなる吸水層、Ｂ） 厚さ0.1mm〜0.3mmの範囲の硬質プラスチック層、紙からな
る吸水層を、水性接着剤を用いて積層し、さらにC)積層直前の含水率が繊維飽和点（約30質量%）以上である天然木化粧単板（つき板）層を80℃以上の温度および0.1MPa以上の加
圧下熱圧接着したシート状化粧材を、Ａ）合板台板にラミネート加工し、塗装仕上げを施す
４：Ａ）の合板層に、予め紙からなる吸水層、Ｂ） 厚さ0.1mm〜0.3mmの範囲の硬質プラ
スチック層、紙からなる吸水層の合計３層を積層してあるシート上材料を重ね、さらにＣ） 厚さ0.15mm〜0.5mmであり、かつ、その積層直前の含水率が繊維飽和点（約30質量%）
以上である天然木化粧単板（つき板）層を、80℃以上の温度および0.1MPa以上の加圧下熱圧接着し、塗装仕上げ処理を施す。
Although the following method is illustrated as a preferable aspect which manufactures the composite wooden flooring of this invention, it is not limited to these from the first.
1) A) Plywood layer, B) Hard plastic layer with a thickness in the range of 0.1mm to 0.3mm is cold-pressure bonded or laminated, then paper is laminated as a water-absorbing layer, and C) water content just before lamination A natural wood decorative veneer layer with a fiber saturation point (about 30% by mass) or higher, using an aqueous adhesive comprising 5-60% by mass of an organic filler mainly composed of starch. Adhesion is performed by hot pressing under a temperature of 80 ° C or higher and pressure of 0.1 MPa or higher.
2: A) A hard plastic layer with a thickness in the range of 0.1 mm to 0.3 mm is cold-bonded or laminated to the plywood layer, and then the water-absorbing layer is mainly composed of an organic filler mainly composed of starch. C) A natural wood veneer veneer layer with moisture content just before the lamination is above the fiber saturation point (approx. 30% by mass), with a temperature of 80 ° C or higher and 0.1 MPa Adhesion under heat and pressure is applied and the paint finish is applied.
3: Water-absorbing layer made of paper, B) A hard plastic layer with a thickness in the range of 0.1 mm to 0.3 mm, and a water-absorbing layer made of paper are laminated using a water-based adhesive, and C) moisture content just before lamination A sheet-like decorative material obtained by adhering a natural wood veneer veneer layer with a saturation point (approximately 30% by mass) or higher under a temperature of 80 ° C or higher and a pressure of 0.1 MPa or higher under pressure. A) Plywood base plate Laminate and paint finish 4: A) Plywood layer with a water absorption layer made of paper in advance, B) A hard plastic layer with a thickness ranging from 0.1mm to 0.3mm, and a water absorption layer made of paper for a total of 3 layers The material on the stacked sheets is stacked, and C) the thickness is 0.15 mm to 0.5 mm, and the moisture content just before the lamination is the fiber saturation point (about 30% by mass)
The above-mentioned natural wood decorative veneer (attached board) layer is subjected to a coating finish treatment by hot-pressure bonding under a temperature of 80 ° C. or higher and a pressure of 0.1 MPa or higher.
前記製造方法において用いられる接着剤・塗料としては、ＶＯＣ低減のために、水性接着剤および低ＶＯＣ塗料を用いることが望ましい。水性接着剤としては、酢酸ビニル樹脂系エマルジョン、酢酸ビニル・エチレン共重合樹脂系エマルジョン、アクリル樹脂系エマルジョン、ウレタン樹脂系エマルジョン、合成ゴムラテックス類、およびこれらの変性体、複合体など主成分とする接着剤が例示できる。低ＶＯＣ塗料としては、水性塗料、ハイソリッド塗料、反応型もしくは粉体型無溶剤塗料などが例示できる。 As the adhesive / paint used in the manufacturing method, it is desirable to use a water-based adhesive and a low VOC paint in order to reduce VOC. Water-based adhesives include vinyl acetate resin emulsions, vinyl acetate / ethylene copolymer resin emulsions, acrylic resin emulsions, urethane resin emulsions, synthetic rubber latices, and their modified and composite main components. An adhesive can be illustrated. Examples of the low VOC paint include water-based paint, high solid paint, reaction type or powder type solventless paint.
以下に実施例により本発明を説明するが、本発明はこれにより限定されるものでは無い。
試験方法
（硬度試験）C型硬度計により測定
（落球試験）JIS K 5600-5-3（デュポン式落球試験法）により凹み深さを測定した。
（表面硬度試験）JIS K 5600-5-4（引っかき硬度（鉛筆法））により評価した。
（寸法安定性試験）75mm×300mm試料を20℃水中に24時間浸せきし、浸せき前・後の表板
（化粧面）の長さを測定し次式により求めた。
伸び率＝浸漬後長さ/浸漬前長さ×１００（％）
（ホルムアルデヒド放散量（Ｆ．Ｅと略）試験）ＪＡＳ複合木質床材に従った。
EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.
Test method (hardness test) Measured with a C-type hardness meter (falling ball test) The dent depth was measured by JIS K 5600-5-3 (DuPont type falling ball test method).
(Surface hardness test) JIS K 5600-5-4 (scratch hardness (pencil method)) was used for evaluation.
(Dimensional stability test) A 75 mm × 300 mm sample was immersed in water at 20 ° C. for 24 hours, and the length of the front plate (decorative surface) before and after immersion was measured and obtained by the following formula.
Elongation rate = length after immersion / length before immersion x 100 (%)
(Formaldehyde emission amount (abbreviated as FE) test) A JAS composite wood floor was used.
実施例１
市販12mm厚ラワン合板（密度590kg/m3）に、接着剤として（株）Ｊ−ケミカル製ウレタン変性ビニル樹脂系接着剤VW-H-141に酸化チタンを10％配合したものを、ロールスプレッダーにて100g/m2塗布し、188μ厚ポリエチレンテレフタレート（以下ＰＥＴと略）フィルム（東レルミラーS10-188）を重ね、0.3MPaの圧力下30分間圧締・接着し１晩養生した。
その後、吸水層を兼ねた接着剤として（株）Ｊ−ケミカル製 VW-H-141にコーンスターチ
を40%配合（固形分中55%）したものを50g/m2塗布し、0.25mm厚ナラ化粧単板（含水率50%
）を重ね、120℃、0.7MPaの条件下、1分間熱圧接着した。養生した後、切断、Ｖ溝加工、サンディング工程を経て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。
得られた複合床材の構成と性能試験結果を表1に示した。
Example 1
A roll spreader made of 10% titanium oxide blended with a commercially available 12mm thick lauan plywood (density 590kg / m 3 ) and urethane modified vinyl resin adhesive VW-H-141 made by J-Chemical Co., Ltd. as an adhesive. 100 g / m 2 was applied, and a 188 μ-thick polyethylene terephthalate (hereinafter abbreviated as PET) film (East Lermirror S10-188) was stacked, pressed and adhered for 30 minutes under a pressure of 0.3 MPa, and cured overnight.
After that, as an adhesive that also serves as a water-absorbing layer, VW-H-141 made by J-Chemical Co., Ltd. was applied with 40% corn starch (55% in the solid content) and applied at 50 g / m 2 to make a 0.25 mm thick nara makeup Single board (water content 50%
) And bonded under heat and pressure for 1 minute at 120 ° C and 0.7 MPa. After curing, cutting, V-groove processing, sanding process, coloring and drying with aqueous stain, applying urethane acrylate UV curable high solid paint, finishing by UV irradiation drying and manufacturing wood composite flooring did.
Table 1 shows the composition and performance test results of the composite flooring obtained.
実施例２
市販12mm厚ラワン合板（密度590kg/m3）に、接着剤として（株）Ｊ−ケミカル製ウレタン変性ビニル樹脂系接着剤VW-H-141に酸化チタンを10％配合したものを、ロールスプレッダーにて100g/m2塗布し、188μ厚ポリエチレンテレフタレート（以下ＰＥＴと略）フィルムを重ね、0.3MPaの圧力下30分間圧締・接着し１晩養生した。その後、接着剤として（株）Ｊ−ケミカル製 VW-H-141を30g/m2塗布し、25g/m2薄葉紙をロールラミネートし、さら
に接着剤としてＪ−ケミカル製変性ＳＢＲラテックス系接着剤SW-283に小麦粉および架橋剤を配合したものを50g/m2塗布し、0.25mm厚ナラ化粧単板（含水率50%）を重ね、120℃、0.7MPaの条件下、１分間熱圧接着した。養生した後、切断、Ｖ溝加工、サンディング工程を経て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表1に示した。
Example 2
A roll spreader made of 10% titanium oxide blended with a commercially available 12mm thick lauan plywood (density 590kg / m 3 ) and urethane modified vinyl resin adhesive VW-H-141 made by J-Chemical Co., Ltd. as an adhesive. 100 g / m 2 was applied, and a 188 μ-thick polyethylene terephthalate (hereinafter abbreviated as “PET”) film was stacked, pressed and bonded for 30 minutes under a pressure of 0.3 MPa, and cured overnight. Then, 30g / m 2 of VW-H-141 manufactured by J-Chemical Co., Ltd. was applied as an adhesive, 25g / m 2 thin paper was roll-laminated, and a modified SBR latex adhesive SW manufactured by J-Chemical was used as an adhesive. -283 blended with wheat flour and cross-linking agent was applied at 50g / m 2 , and 0.25mm thick oak veneer (water content 50%) was layered and bonded under heat and pressure for 1 minute at 120 ° C and 0.7MPa. . After curing, cutting, V-groove processing, sanding process, coloring and drying with aqueous stain, applying urethane acrylate UV curable high solid paint, finishing by UV irradiation drying and manufacturing wood composite flooring did. Table 1 shows the composition and performance test results of the composite flooring obtained.
実施例３
市販12mm厚ラワン合板（密度590kg/m3）に、接着剤として（株）Ｊ−ケミカル製ウレタン変性ビニル樹脂系接着剤VW-H-141に酸化チタンを10％配合したものを、ロールスプレッダーにて50g/m2塗布し、25g/m2薄葉紙をロールラミネートし、両面にVW-H-141を50g/m2塗布した188μ厚ポリエチレンテレフタレート（以下ＰＥＴと略）フィルムを重ね、さらに25g/m2薄葉紙を重ねてロールラミネートし養生した。これに接着剤としてJ-ケミカル製変
性ＳＢＲラテックス系接着剤SW-283に小麦粉および架橋剤を配合したものを50g/m2塗布し0.25mm厚ナラ化粧単板（含水率50%）を重ね、120℃、0.7MPaの条件下、1分間熱圧接着し
た。養生した後、切断、Ｖ溝加工、サンディング工程を経て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表1に示し
た。
Example 3
A roll spreader made of 10% titanium oxide blended with a commercially available 12mm thick lauan plywood (density 590kg / m 3 ) and urethane modified vinyl resin adhesive VW-H-141 made by J-Chemical Co., Ltd. as an adhesive. 50g / m 2 applied, roll laminated 25g / m 2 thin paper, 188μ thick polyethylene terephthalate (hereinafter abbreviated as PET) film coated with 50g / m 2 VW-H-141 on both sides, and 25g / m rolled laminate was cured on top of two tissue paper. To this, 50g / m 2 of J-Chemical modified SBR latex adhesive SW-283 blended with wheat flour and crosslinking agent was applied, and 0.25mm thick oak veneer (water content 50%) was layered. Adhesion was carried out for 1 minute under conditions of 120 ° C. and 0.7 MPa. After curing, cutting, V-groove processing, sanding process, coloring and drying with aqueous stain, applying urethane acrylate UV curable high solid paint, finishing by UV irradiation drying and manufacturing wood composite flooring did. Table 1 shows the composition and performance test results of the composite flooring obtained.
実施例４
合板が、表・裏のベニヤに厚さ1.7mmラワン材、中芯ベニヤ3枚に厚さ3mmのラジアタパ
イン材を用いた構成から成るもの（密度610kg/m3）であることを除いては、実施例１と同様に木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表1に示した。
Example 4
Except that the plywood consists of a lavane material with a thickness of 1.7mm for the front and back veneers and a radial tapine material with a thickness of 3mm for the three core veneers (density 610kg / m 3 ). A wood composite flooring was produced in the same manner as in Example 1. Table 1 shows the composition and performance test results of the composite flooring obtained.
実施例５
合板が、フェノール樹脂系接着剤（（株）Ｊ−ケミカル製PF-330）を用いて積層接着されたもの（密度600kg/m3）であることを除いては、実施例１と同様に木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表1に示した。
Example 5
The wood is the same as in Example 1 except that the plywood is laminated and bonded (density 600 kg / m 3 ) using a phenol resin adhesive (PF-330 manufactured by J-Chemical Co., Ltd.). A composite flooring was produced. Table 1 shows the composition and performance test results of the composite flooring obtained.
実施例６
リサイクルＰＥＴ材からなる厚さ188μのシートの両面に、（株）Ｊ−ケミカル製特殊
変性ビニル共重合樹脂系接着剤VW-H-137を30g/m2塗布し、ロールプレスでラミネート加工した後、Ｊ−ケミカル製変性ＳＢＲラテックス系接着剤SW-283に小麦粉および架橋剤を配合したものを50g/m2塗布し、0.25mm厚ナラ化粧単板を重ね、120℃、0.7MPaの条件下、1分間熱圧接着しシート状物を得た。次に、このシート状物の紙面に接着剤としてVW-H-137を100g/m2塗布し、熱風ドライヤーで乾燥させた後、プロファイリングロールとソフトフォ
ーミングロールを有するラミネータにて、予めＶ溝きり加工、サネ加工がされた市販12mm厚ラワン合板（密度590kg/m3）に、プロファイリング・ラミネート加工した。養生した後、サンディング工程を経て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表1に示した。
Example 6
After applying 30g / m 2 of special modified vinyl copolymer resin adhesive VW-H-137 made by J-Chemical Co., Ltd. on both sides of a 188μ thick sheet made of recycled PET material, and laminating with a roll press , J-Chemical modified SBR latex adhesive SW-283 blended with wheat flour and cross-linking agent was applied at 50g / m 2 , and 0.25mm thick oak veneer was layered, at 120 ° C and 0.7MPa, Heat-pressure bonding was performed for 1 minute to obtain a sheet. Next, after applying 100 g / m 2 of VW-H-137 as an adhesive to the paper surface of this sheet-like material and drying it with a hot-air dryer, the V-groove was cut in advance with a laminator having a profiling roll and a soft forming roll. Profiling and laminating was carried out on a commercially available 12mm thick lauan plywood (density 590kg / m 3 ) that had been processed and sanitized. After curing, through a sanding process, it was colored and dried with aqueous stain, applied with a urethane acrylate UV curable high solid paint, dried by UV irradiation and finished to produce a wood composite flooring. Table 1 shows the composition and performance test results of the composite flooring obtained.
比較例１
吸水層を兼ねた接着剤として（株）Ｊ−ケミカル製 VW-H-141にコーンスターチを40%配合（固形分中55%）したものに代えて、（株）Ｊ−ケミカル製 VW-H-141を用いた他は、実施例１と同様に木質複合床材を製造した。
Comparative Example 1
VW-H- made by J-Chemicals Co., Ltd. instead of 40% corn starch (55% in solids) blended with VW-H-141 made by J-Chemical Co., Ltd. as an adhesive also serving as a water-absorbing layer A wood composite flooring was produced in the same manner as in Example 1 except that 141 was used.
比較例２
0.25mm厚ナラ化粧単板（含水率50%）に代えて、乾燥0.25mm厚ナラ化粧単板（含水率15%）を用いた他は、比較例１と同様に木質複合床材を製造した。
Comparative Example 2
A wood composite flooring was produced in the same manner as in Comparative Example 1, except that a dry 0.25 mm thick oak veneer (water content 15%) was used instead of the 0.25 mm oak veneer veneer (water content 50%). .
比較例３
188μ厚PETに代えて、75μ厚PETを用いた他は、実施例１と同様に木質複合床材を製造
した。得られた複合床材の構成と性能試験結果を表２に示した。
Comparative Example 3
A wood composite flooring was produced in the same manner as in Example 1 except that 75 μm PET was used instead of 188 μm PET. Table 2 shows the composition and performance test results of the obtained composite flooring.
比較例４
市販12mm厚ラワン合板（密度590kg/m3）に、接着剤として接着剤としてＪ−ケミカル製変性ＳＢＲラテックス系接着剤SW-283に小麦粉および架橋剤を配合したものを80g/m2塗布し、25g/m2薄葉紙をロールプレスでラミネートし、さらに接着剤としてSW-283に小麦粉および架橋剤を配合したものを70g/m2塗布し、0.25mm厚ナラ化粧単板を重ね、120℃、0.7MPaの条件下、１分間熱圧接着した。養生した後、切断、Ｖ溝加工、サンディング工程を経
て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料
を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表２に示した。
Comparative Example 4
Applying 80g / m 2 of 12mm thick lauan plywood (density 590kg / m 3 ), blended with flour and cross-linking agent to J-Chemical modified SBR latex adhesive SW-283 as an adhesive, Laminate 25 g / m 2 thin paper with a roll press, and then apply SW-283 blended with flour and a cross-linking agent as an adhesive, 70 g / m 2 , layer 0.25 mm thick oak veneer, 120 ° C, 0.7 Bonding was performed under pressure of MPa for 1 minute. After curing, cutting, V-groove processing, sanding process, coloring and drying with aqueous stain, applying urethane acrylate UV curable high solid paint, finishing by UV irradiation drying and manufacturing wood composite flooring did. Table 2 shows the composition and performance test results of the obtained composite flooring.
比較例５
市販12mm厚カポール合板（密度780kg/m3）に、接着剤として接着剤としてJ-ケミカル製変性ＳＢＲラテックス系接着剤SW-283に小麦粉および架橋剤を配合したものを80g/m2塗布し、25g/m2薄葉紙をロールプレスでラミネートし、さらに接着剤としてSW-283に小麦粉および架橋剤を配合したものを70g/m２塗布し、0.25mm厚ナラ化粧単板を重ね、120℃、0.7MPaの条件下、1分間熱圧接着した。養生した後、切断、Ｖ溝加工、サンディング工程を経
て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表２に示した。
Comparative Example 5
Applying 80g / m 2 of 12mm thick capol plywood (density 780kg / m 3 ) with flour and cross-linking agent blended with J-Chemical modified SBR latex adhesive SW-283 as an adhesive, Laminate 25g / m 2 thin paper with a roll press, and then apply SW-283 blended with wheat flour and cross-linking agent as an adhesive, 70g / m 2 , overlay 0.25mm thick oak veneer, 120 ° C, 0.7MPa Under the conditions described above, hot pressing was performed for 1 minute. After curing, cutting, V-groove processing, sanding process, coloring and drying with aqueous stain, applying urethane acrylate UV curable high solid paint, finishing by UV irradiation drying and manufacturing wood composite flooring did. Table 2 shows the composition and performance test results of the obtained composite flooring.
比較例６
市販12mm厚ラワン合板（密度590kg/m3）に、接着剤として（株）Ｊ−ケミカル製変性酢酸ビニル樹脂系接着剤VW-621を、ロールスプレッダーにて150g/m2塗布し、厚さ１mmの高
密度繊維板（ＨＤＦ）を重ね、１MPaの圧力下30分間圧締・接着し１晩養生した。その後
、接着剤としてSW-283に小麦粉および架橋剤を配合したものを70g/m 塗布し、0.25mm厚ナラ化粧単板を重ね、120℃、0.7MPaの条件下、1分間熱圧接着した。養生した後、切断、Ｖ溝加工、サンディング工程を経て、水性ステインで着色・乾燥し、ウレタンアクリレート系ＵＶ硬化型ハイソリッド塗料を塗布し、ＵＶ照射乾燥して仕上げて、木質複合床材を製造した。得られた複合床材の構成と性能試験結果を表２に示した。
Comparative Example 6
A commercially available 12mm thick lauan plywood (density 590kg / m 3 ) was coated with 150g / m 2 of a modified vinyl acetate resin adhesive VW-621 made by J-Chemical Co., Ltd. using a roll spreader. A high-density fiberboard (HDF) was stacked and pressed and bonded under a pressure of 1 MPa for 30 minutes and cured overnight. Then, 70g / m of SW-283 blended with flour and cross-linking agent as an adhesive After coating, 0.25 mm thick oak veneer was stacked and bonded under hot pressure for 1 minute at 120 ° C and 0.7 MPa. After curing, cutting, V-groove processing, sanding process, coloring and drying with aqueous stain, applying urethane acrylate UV curable high solid paint, finishing by UV irradiation drying and manufacturing wood composite flooring did. Table 2 shows the composition and performance test results of the obtained composite flooring.
Claims (11)
上げしてなる木質複合床材であって、Ａ）、Ｂ）間、および／または、Ｂ）、Ｃ）間に吸水層が設けられてなる耐傷性・高硬度木質複合床材。 A) Plywood layer, B) Hard plastic layer with a thickness in the range of 0.1 mm to 0.3 mm, C) Natural wood veneer veneer layer with a moisture content just before the lamination is above the fiber saturation point (about 30% by mass) A wood composite flooring which is laminated and finished by painting, and is provided with a water-absorbing layer between A) and B) and / or B) and C). .
１または２に記載の木質複合床材。 The wood composite flooring according to claim 1 or 2, wherein the plywood of A) is composed of a single plantation material for 50% or more of the volume.
ト、ポリスチレン、ポリプロピレン、高密度ポリエチレン、ポリアミド、ポリ塩化ビニルからなる群から選ばれるプラスチックの1種または2種以上を積層または複合したものであることを特徴とする請求項１~５のいずれか１項に記載の木質複合床材。 B) A hard plastic layer with a thickness in the range of 0.1 mm to 0.3 mm is laminated with one or more plastics selected from the group consisting of polyethylene terephthalate, polystyrene, polypropylene, high density polyethylene, polyamide, and polyvinyl chloride. 6. The wood composite flooring according to any one of claims 1 to 5, which is a composite.
もしくはラミネート加工した後、該Ｂ）層上に吸水層として紙をラミネート加工し、さらにＣ）積層直前の含水率が繊維飽和点（約30質量%）以上である天然木化粧単板層を、で
ん粉を主成分とする有機充填剤を5〜60質量％含んでなる水性接着剤を用いて80℃以上の
温度および0.1MPa以上の加圧下熱圧接着し、塗装仕上げしてなる耐傷性・高硬度木質複合床材の製造方法。 A) After a hard plastic layer having a thickness in the range of 0.1 mm to 0.3 mm is cold-pressure bonded or laminated on the plywood layer, paper is laminated on the B) layer as a water-absorbing layer, and C ) A natural wood decorative veneer layer whose moisture content just before lamination is equal to or higher than the fiber saturation point (about 30% by mass), using an aqueous adhesive comprising 5 to 60% by mass of an organic filler mainly composed of starch. A method of manufacturing a scratch-resistant, high-hardness wood composite flooring that is bonded by hot pressing under a temperature of 80 ° C or higher and pressure of 0.1 MPa or higher.
吸水層を、水性接着剤を用いて順に積層し、該積層物上にさらにＣ）積層直前の含水率が繊維飽和点（約30質量%）以上である天然木化粧単板層を80℃以上の温度および0.1MPa以
上の加圧下で熱圧接着してシート状化粧材を作成し、該化粧材をＡ）合板層にラミネート加工し、塗装仕上げすることからなる耐傷性・高硬度木質複合床材の製造方法。 Water-absorbing layer made of paper, B) A hard plastic layer having a thickness in the range of 0.1 mm to 0.3 mm, and a water-absorbing layer made of paper are sequentially laminated using a water-based adhesive, and further C) immediately before lamination. A natural wood decorative veneer layer with a moisture content of at least the fiber saturation point (about 30% by mass) is bonded by heat and pressure at a temperature of 80 ° C. or higher and a pressure of 0.1 MPa or higher to produce a sheet-like cosmetic material. A method for producing a scratch-resistant and high-hardness wood composite flooring comprising laminating a material into a plywood layer and painting it.
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| JP2005190165A JP2007009483A (en) | 2005-06-29 | 2005-06-29 | Impairment resistance/high stiffness woody compound flooring and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008214991A (en) * | 2007-03-06 | 2008-09-18 | Eidai Co Ltd | Plywood for floor substrate, and floor material |
| CN100557164C (en) * | 2007-02-05 | 2009-11-04 | 杭州升佳集团有限公司 | Solid wooden compound floor and manufacture method |
| JP2009257067A (en) * | 2008-03-25 | 2009-11-05 | Panasonic Electric Works Co Ltd | Wooden floor material |
-
2005
- 2005-06-29 JP JP2005190165A patent/JP2007009483A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557164C (en) * | 2007-02-05 | 2009-11-04 | 杭州升佳集团有限公司 | Solid wooden compound floor and manufacture method |
| JP2008214991A (en) * | 2007-03-06 | 2008-09-18 | Eidai Co Ltd | Plywood for floor substrate, and floor material |
| JP2009257067A (en) * | 2008-03-25 | 2009-11-05 | Panasonic Electric Works Co Ltd | Wooden floor material |
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