JP3305074B2 - Manufacturing method of decorative composite board - Google Patents
Manufacturing method of decorative composite boardInfo
- Publication number
- JP3305074B2 JP3305074B2 JP29449993A JP29449993A JP3305074B2 JP 3305074 B2 JP3305074 B2 JP 3305074B2 JP 29449993 A JP29449993 A JP 29449993A JP 29449993 A JP29449993 A JP 29449993A JP 3305074 B2 JP3305074 B2 JP 3305074B2
- Authority
- JP
- Japan
- Prior art keywords
- composite board
- veneer
- mdf
- softwood
- moisture content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Finished Plywoods (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、建築材料や家具材料
として利用される複合板の製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a composite board used as a building material or a furniture material.
【０００２】[0002]
【従来の技術】近年、使用量が大幅に増大している床用
台板材料として、ラワン合板が大量に使用されている。
これは熱帯雨林地方で生育しているラワン原木が、つい
近年まで若干の波があったとしても他の材料に比べて安
定して、かつ安価に供給されてきたことと密接な関係が
ある。2. Description of the Related Art In recent years, Rawan plywood has been used in large quantities as a floor plate material whose use has been greatly increased.
This is closely related to the fact that raw wood, which grows in the rainforest region, has been supplied more stably and inexpensively than other materials, even with slight waves until recently.
【０００３】しかも、このラワン原木から製造されるラ
ワン合板は、表面の平滑性、湿気に対する寸法安定性、
曲げ強度、加工の容易性、軽量性、耐久性、供給の安定
性、価格の安定性、材色の安定性等どれをとっても優れ
た材料であった。[0003] Moreover, the rawan plywood manufactured from the rawan wood has a smooth surface, dimensional stability against moisture,
The material was excellent in bending strength, ease of processing, lightness, durability, supply stability, price stability, and color stability.
【０００４】ところが、ここ数年の間に地球環境の保護
の声が高まり、ラワン原木の乱伐やその他の理由による
熱帯雨林の急激な減少が世界の非難を浴びるようになっ
てきた。[0004] However, over the last few years, voices of protection of the global environment have risen, and the sudden decline of rainforests due to the deforestation of raw wood and other reasons has come to blame the world.
【０００５】そのためラワン合板に代わる材料としてパ
−ティクルボ−ド、ＭＤＦ（中質繊維板）、針葉樹合板
等の利用が研究されてきたが、いずれもラワン合板に代
わるまでには到っていない。For this reason, the use of particle boards, MDF (medium fiber board), softwood plywood, etc. as materials that can replace Rawan plywood has been studied, but none of them have been replaced with Rawan plywood.
【０００６】例えば、パ−ティクルボ−ドでは、湿気に
対する寸法安定性、曲げ強度、加工の容易性、軽量性等
においてラワン合板に到底及ばなかった。また、最近注
目されているＭＤＦは、表面平滑性においてはラワン合
板よりもはるかに優れているが、価格が高いうえ、湿気
に対する寸法安定性が非常に悪く、ラワン合板の代替材
料としての地位を確保するにはまだまだ不十分であっ
た。また、針葉樹合板はラワン合板の構成と同じである
ため、寸法安定性、曲げ強度、加工の容易性、および、
植林可能なため供給の安定性等に優れており、ラワン合
板に比較的近い材料であるが、大部分の針葉樹は節が多
いことと、表面に硬軟（秋材部と春材部）の差があるこ
と等が相まって平面平滑性が非常に劣り、針葉樹合板表
面に直接銘木単板や化粧紙等を接着することが困難であ
った。[0006] For example, a particle board is far from Rawan plywood in dimensional stability against moisture, bending strength, ease of processing, light weight, and the like. MDF, which has recently attracted attention, is much better than Rawan plywood in terms of surface smoothness, but is expensive and has very poor dimensional stability against moisture, making it an alternative material to Rawan plywood. It was not enough to secure. In addition, softwood plywood is the same as the composition of Rawan plywood, so dimensional stability, bending strength, ease of processing, and,
It is excellent in supply stability because it can be planted, and is a material relatively close to Rawan plywood, but most conifers have many nodes, and the surface is hard and soft (autumn and spring). In addition, the flatness was extremely poor, and it was difficult to bond a veneer veneer or decorative paper directly to the surface of softwood plywood.
【０００７】上記したように、パ−ティクルボ−ド、Ｍ
ＤＦ、針葉樹合板等を単独でラワン合板の代わりに使用
することは非常に難しいため、上記材料を複合して使用
する試みがなされてきた。例えば、針葉樹合板や薄手の
パ−ティクルボ−ド表面にＭＤＦを接着剤を介して熱圧
接着したが、いずれも熱圧後四周が上方に反り、丁度お
椀状になる傾向があった。このようにお椀状に反った複
合板を床板として使用するために四周に実加工を施して
釘打ちあるいは接着剤で施工すると、突き合わせ面が盛
り上がって段違い状態になったり、その盛り上がった部
分の化粧が摩耗によってすり減り、その部分だけ基材が
露出して非常に見苦しくなる欠点があった。As described above, the particle board, M
Since it is very difficult to use DF, softwood plywood or the like alone in place of Rawan plywood, attempts have been made to use the above materials in combination. For example, MDF was hot-press bonded to softwood plywood or a thin particle board surface via an adhesive, but in all cases, four rounds warped upward after hot pressing, and tended to be just bowl-shaped. In order to use the composite board warped like a bowl like this as a floorboard, if you apply actual processing to the four circumferences and apply nailing or adhesive, the butted surface will rise and become uneven, or the makeup of the raised part However, there is a disadvantage that the base material is exposed only at that portion and becomes very unsightly.
【０００８】熱圧法ではお椀状に反るため、冷圧法で複
合板を製造することが試みられたが、冷圧法に使用する
接着剤は高価であり、しかも針葉樹を冷圧法で接着する
には多量の接着剤を必要とするため、ますます複合板の
価格を高いものにするうえ、接着剤が端部からはみだす
欠点があった。また、冷圧法は生産性の点からみても熱
圧法よりも格段に悪いという欠点もあった。[0008] Since the hot-press method warps into a bowl shape, attempts have been made to produce a composite board by the cold-pressure method. However, the adhesive used in the cold-pressure method is expensive. Since a large amount of adhesive is required, the price of the composite board is further increased, and the adhesive has a disadvantage that the adhesive protrudes from the edge. Further, the cold pressure method also has a disadvantage that it is much worse than the hot pressure method from the viewpoint of productivity.
【０００９】また、折角表面平滑になった複合板であっ
ても、その表面に上塗り塗料を塗布して乾燥するとお椀
状に反ってしまう場合があった。[0009] In addition, even if the composite board has a flat surface, it may be warped into a bowl shape if a top coat is applied and dried.
【０００９】[0009]
【発明が解決しようとする課題】本発明は、ラワン合板
の代替材料として十分な特性をもつとともに、上述した
お椀状に反るという欠点を解消するとともに裏面からの
吸湿を防止した化粧複合板の製造方法を提供することを
目的とする。SUMMARY OF THE INVENTION The present invention relates to a decorative composite board which has sufficient properties as an alternative material to Rawan plywood, eliminates the above-mentioned disadvantage of warping in a bowl shape, and prevents moisture absorption from the back side. It is intended to provide a manufacturing method.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するた
め、この発明は、ＭＤＦと広葉樹単板と針葉樹合板とを
接着剤を介して順々に積層し、これを加熱加圧するに際
し、ＭＤＦの含水率を広葉樹単板や針葉樹合板の含水率
よりも低めに設定して、それらの含水率変化に伴う収縮
差を利用して複合板を製造し、この複合板の表面に予め
上塗り塗料が塗布されている化粧シートを貼着するとと
もに、裏面にはシーリング塗料を塗布することを特徴と
する化粧複合板の製造方法、および、ＭＤＦと広葉樹単
板と針葉樹合板とを接着剤を介して順々に積層し、これ
を加熱加圧するに際し、ＭＤＦの含水率を広葉樹単板や
針葉樹合板の含水率よりも低めに設定して、それらの含
水率変化に伴う収縮差を利用して複合板を製造し、この
複合板の表面に化粧シートを貼着後上塗り塗料を塗布す
るとともに、裏面にはシーリング塗料を塗布することを
特徴とする化粧複合板の製造方法、および、予め上塗り
塗料が塗布されている化粧シートを表面に貼着した化粧
シート貼りＭＤＦと広葉樹単板と針葉樹合板とを接着剤
を介して順々に積層し、これを加熱加圧するに際し、化
粧シート貼りＭＤＦの含水率を広葉樹単板や針葉樹合板
の含水率よりも低めに設定して、それらの含水率変化に
伴う収縮差を利用して複合板を製造し、この複合板の裏
面にシーリング塗料を塗布することを特徴とする化粧複
合板の製造方法、および、化粧シートを表面に接着した
化粧シート貼りＭＤＦと広葉樹単板と針葉樹合板とを接
着剤を介して順々に積層し、これを加熱加圧するに際
し、化粧シート貼りＭＤＦの含水率を広葉樹単板や針葉
樹合板の含水率よりも低めに設定して、それらの含水率
変化に伴う収縮差を利用して複合板を製造し、この複合
板の表面には上塗り塗料を、裏面にはシーリング塗料を
塗布することを特徴とする化粧複合板の製造方法に係
る。なお、シーリング塗料に防腐剤や防黴剤を添加して
裏面の針葉樹合板が腐ったり黴が生えたりするのを防止
することができる。また、途中にはさまれている広葉樹
単板の繊維方向は、この広葉樹単板と接する最上層の針
葉樹単板の繊維方向と直交させることもできる。さら
に、上記化粧複合板を製造するには、針葉樹合板の代わ
りに複数枚の針葉樹単板を用いて、一挙に熱圧して製造
するようにしてもよい。In order to achieve the above object, the present invention provides a method of laminating an MDF, a hardwood veneer and a softwood plywood one after another via an adhesive, and heating and pressurizing the MDF. The moisture content is set lower than the moisture content of hardwood veneer or softwood plywood, and a composite board is manufactured using the difference in shrinkage due to the change in the moisture content, and a topcoat is applied to the surface of the composite board in advance. A method of manufacturing a decorative composite board, characterized in that a decorative sheet is adhered and a sealing paint is applied to the back surface, and the MDF, the hardwood veneer and the softwood plywood are sequentially bonded via an adhesive. When heated and pressurized, the moisture content of MDF is set lower than that of hardwood veneer or softwood plywood, and a composite board is manufactured using the difference in shrinkage due to the change in moisture content. And apply makeup to the surface of this composite board A method of manufacturing a decorative composite board, characterized in that a top coat is applied after the sheet is applied, and a sealing paint is applied to the back surface, and a decorative sheet to which a top coat is applied in advance is applied to the front surface. The laminated decorative sheet MDF, the hardwood veneer and the softwood plywood are sequentially laminated via an adhesive, and when this is heated and pressed, the moisture content of the decorative sheet affixed MDF is determined from the moisture content of the hardwood veneer or the softwood plywood. Also set a lower, to produce a composite board utilizing the difference in shrinkage due to their moisture content change, a method of manufacturing a decorative composite board characterized by applying a sealing paint on the back of this composite board, and The decorative sheet-attached MDF having the decorative sheet adhered to its surface, the hardwood veneer and the softwood plywood are sequentially laminated via an adhesive, and when this is heated and pressed, the water content of the decorative sheet-attached MDF is increased. By setting a lower value than the moisture content of the veneer and softwood plywood, a composite board is manufactured using the difference in shrinkage due to the change in the moisture content, and a top coat paint is applied to the surface of the composite board, and The present invention relates to a method for producing a decorative composite board, which comprises applying a sealing paint. An antiseptic or a fungicide may be added to the sealing paint to prevent the softwood plywood on the back surface from rotting or growing mold. The fiber direction of the hardwood veneer sandwiched in the middle can also be orthogonal to the fiber direction of the uppermost coniferous veneer in contact with the hardwood veneer. Further, in order to manufacture the decorative composite board, a plurality of softwood veneers may be used in place of the softwood plywood, and hot-pressing may be performed at once.
【００１１】以下、この発明を実施例図を用いて説明す
る。図１〜図４はこの発明の化粧複合板の製造工程をそ
れぞれ示す斜視図である。１はＭＤＦで、経済的な面か
ら見れば厚みは２〜３ｍｍ程度が好ましいが、これに限
定されるものではない。また、ＭＤＦの原料として針葉
樹材を用いるもの、広葉樹材を用いるもの、あるいはそ
れらを混合して用いるものがあるが、本発明ではいずれ
の原料を用いてもよい。また、ＭＤＦにはメラミンタイ
プ、フェノールタイプ、尿素タイプ等のＭＤＦがある
が、床用台板として用いる場合は、耐水、耐熱性に優れ
たメラミンタイプあるいはフェノールタイプのＭＤＦが
よい。もちろん、壁板、天井板等のように耐水性をそれ
ほど必要としない場所に使用する場合は、尿素タイプの
ＭＤＦでよい。このＭＤＦは予め熱盤や乾燥炉で含水率
が好ましくは３％以下になるように乾燥されている。Ｍ
ＤＦの含水率が３％を越えていても、ＭＤＦの含水率と
広葉樹単板や針葉樹合板等の含水率との間に差があれば
よいが、６％以上の差があればより好ましい。しかし、
生産性の点からみれば３％以下にする方が優れている。
なぜならば、ＭＤＦの含水率を３％以下、言い換えれば
絶乾状態に近くすることのほうが生産上コントロールし
やすいためである。２は広葉樹単板、３、４および５は
針葉樹単板で、これらの単板は、それぞれ繊維方向が直
交した状態を示しているが、これに限定されたものでは
なく、例えば広葉樹単板２の繊維方向と広葉樹単板と接
する針葉樹単板３の繊維方向が同一方向であってもよ
い。Hereinafter, the present invention will be described with reference to the drawings. 1 to 4 are perspective views respectively showing the steps of manufacturing the decorative composite board of the present invention. Reference numeral 1 denotes an MDF, which preferably has a thickness of about 2 to 3 mm from an economic viewpoint, but is not limited to this. Further, as a raw material of MDF, there is a material using softwood, a material using hardwood, or a material using a mixture thereof. In the present invention, any material may be used. There are MDFs of melamine type, phenol type, urea type and the like in the MDF, but when used as a floor plate, a melamine type or phenol type MDF excellent in water resistance and heat resistance is preferable. Of course, when used in places that do not require much water resistance, such as wall boards and ceiling boards, a urea-type MDF may be used. This MDF is previously dried on a hot plate or a drying oven so that the water content is preferably 3% or less. M
Even if the water content of DF exceeds 3%, it is sufficient if there is a difference between the water content of MDF and the water content of hardwood veneer or softwood plywood, but more preferably 6% or more. But,
From the viewpoint of productivity, it is better to set the content to 3% or less.
This is because production control is easier when the water content of the MDF is 3% or less, in other words, when it is close to a completely dry state. 2 is a hardwood veneer, 3, 4 and 5 are softwood veneers. These veneers each show a state in which the fiber directions are orthogonal to each other. However, the present invention is not limited to this. And the fiber direction of the softwood veneer 3 in contact with the hardwood veneer may be the same direction.
【００１２】針葉樹単板３、４、５は、複合板を製造す
るにあたり、図１および図３に示すように予め合板の形
態をとっていてもよいが、図２および図４に示すように
ＭＤＦ１と広葉樹単板２等と三枚の針葉樹単板３、４、
５とを接着剤を介して一挙に複合板としてもよい。積層
熱圧する際、広葉樹単板や針葉樹単板の含水率は使用す
る接着剤によって若干の差異があるにしてもほぼ気乾状
態が好ましい。ここで気乾状態とは、地域差もあるが６
〜１５％を指す。この含水率もまた気乾状態に限られる
ものではなく、ＭＤＦの含水率によって上下するもので
ある。しかし、生産性を考えれば気乾状態が好ましいこ
とは言うまでもない。また、熱圧条件も温度１１０℃〜
１３０℃、圧力６〜１０ｋｇ／ｃｍ2 、時間３〜１０分
間程度であり、従来の合板製造時の熱圧条件と同じか、
あるいはそれと近似している。When manufacturing the composite boards, the softwood veneers 3, 4, and 5 may be in the form of plywood in advance as shown in FIGS. 1 and 3, but as shown in FIGS. 2 and 4. MDF1, hardwood veneer 2, etc., and three softwood veneers 3, 4,
5 may be formed as a composite plate at once with an adhesive. At the time of lamination hot pressing, the moisture content of a hardwood veneer or a softwood veneer is preferably substantially air-dried even though there may be a slight difference depending on the adhesive used. Here, although there are regional differences with the air-dried state,
１５15%. This water content is not limited to the air-dried state, but depends on the water content of the MDF. However, it is needless to say that the air-dry state is preferable in consideration of productivity. Also, the heat pressure condition is 110 ° C ~
130 ° C., pressure 6 to 10 kg / cm 2 , time 3 to 10 minutes, or the same as the heat and pressure conditions in the conventional plywood manufacturing,
Or it is similar.
【００１３】この発明では、積層するＭＤＦあるいは化
粧シート貼りＭＤＦの含水率を広葉樹単板や針葉樹合板
の含水率よりも低めに設定しておくこと、好ましくはＭ
ＤＦあるいは化粧シート貼りＭＤＦの含水率を３％以下
に、広葉樹単板や針葉樹合板の含水率を気乾状態にして
おくことが好ましい。このようにすることによって製造
された複合板はお椀状に反ることなく、ほぼ平滑な状態
か、若干逆お椀状になる。また、ＭＤＦと針葉樹材との
間に広葉樹材をはさんでおくことも重要である。なぜな
らば、針葉樹材の表面にＭＤＦを貼着すると、大部分の
針葉樹材の表面が平滑でないことと、ＭＤＦの表面が非
常にツルツルしているためと思われるが、接着強度があ
まりないためである。広葉樹単板はＭＤＦとも針葉樹材
ともなじみやすい特徴がある。また、針葉樹材とＭＤＦ
にまたがって実加工を施した時も、広葉樹材をはさんで
おくと実自体の強度が大きくなる利点もある。In the present invention, the water content of the MDF to be laminated or the MDF to which the decorative sheet is attached is set to be lower than the water content of the hardwood veneer or the softwood plywood.
It is preferable that the moisture content of the DF or the MDF with the decorative sheet is kept at 3% or less and the moisture content of the hardwood veneer or the softwood plywood is air-dried. In this way, the composite plate manufactured in this manner does not warp in a bowl shape, but has a substantially smooth state or a slightly inverted bowl shape. It is also important to put hardwood between MDF and softwood. This is because when MDF is stuck to the surface of softwood, it is thought that the surface of most softwood is not smooth and the surface of MDF is very slippery. is there. Hardwood veneers have the characteristic of being compatible with both MDF and softwood. Also, softwood and MDF
There is also an advantage that the strength of the fruit itself is increased when the hardwood material is sandwiched even when the actual processing is performed over the whole area.
【００１４】図１、図２では複合板を製造した後、その
表面に銘木単板や化粧紙等の化粧シート６を貼着し、さ
らに上塗り塗料を塗布するとともに、裏面にシーリング
塗料を塗布乾燥している。シーリング塗料を塗布乾燥
後、上塗り塗料を塗布乾燥してもよいし、両者を同時に
乾燥してもよいことはもちろんである。このようにする
ことによって、表面の上塗塗料と裏面のシ−リング塗料
がバランスし、反りにくくなる。図３、図４ではＭＤＦ
を乾燥する前に化粧シート６が表面に貼られたもので、
この場合も化粧シート貼りＭＤＦの含水率が好ましくは
３％以下になるように乾燥されている。このように予め
化粧シート６を表面に貼っておくと、後から貼るよりも
平面引張り強度が大きくなる利点がある。これはＭＤＦ
を乾燥後その表面に化粧シート６を貼る場合は、ＭＤＦ
の表面が熱により若干劣化しているためと思われる。こ
のようにして製造された複合板の表面に上塗り塗料を塗
布するとともに、裏面にシーリング塗料を塗布して乾燥
する。この発明において使用するシーリング塗料として
は、フェノール樹脂、ポリウレタン樹脂、ポリエステル
樹脂等が挙げられる。また、必要であればシーリング塗
料中に防腐剤や防黴剤を添加して化粧複合板の裏面に防
腐や防黴効果を付与してもよい。なお、シ−リング塗料
は化粧複合板の木口にも塗布してもよい。In FIGS. 1 and 2, after a composite board is manufactured, a decorative sheet 6 such as a veneer veneer or decorative paper is adhered to the surface, a top coat is applied, and a sealing paint is applied to the back side and dried. are doing. After the sealing paint is applied and dried, the top coat may be applied and dried, or both may be dried at the same time. By doing so, the top coating material on the front surface and the sealing coating material on the back surface are balanced and hardly warped. In FIG. 3 and FIG.
Before drying, the decorative sheet 6 was stuck on the surface,
In this case as well, the MDF is dried so that the water content of the MDF with the decorative sheet is preferably 3% or less. When the decorative sheet 6 is pasted on the surface in advance in this way, there is an advantage that the planar tensile strength is larger than when the decorative sheet 6 is pasted. This is MDF
If you apply the decorative sheet 6 on the surface after drying
This is probably because the surface of the sample was slightly deteriorated by heat. A top coat is applied to the surface of the composite board thus manufactured, and a sealing paint is applied to the back side and dried. Examples of the sealing paint used in the present invention include a phenol resin, a polyurethane resin, and a polyester resin. If necessary, a preservative or an antifungal agent may be added to the sealing paint to impart an antiseptic or antifungal effect to the back surface of the decorative composite board. In addition, the sealing paint may be applied to the opening of the decorative composite board.
【００１５】[0015]
【実施例１】厚み２．７ｍｍの針葉樹を原料としたメラ
ミンタイプのＭＤＦを温度１２０℃の熱盤内で２０分間
乾燥して含水率を２％にした。別に表板として厚さ１．
７ｍｍのラジア−タパイン、心板として厚さ３．２ｍｍ
のラジア−タパイン、裏板として厚さ１．７ｍｍのラジ
ア−タパインを尿素メラミン樹脂接着剤を介して圧力８
ｋｇ／ｃｍ2 、温度１２０℃の熱圧条件で４分間熱圧し
て含水率１０％の針葉樹合板を製造した。上記含水率に
調整したＭＤＦと針葉樹合板とを、両面に尿素メラミン
樹脂接着剤を３８０ｇ／ｍ2 塗布した厚さ３．２ｍｍ、
含水率１２％のラワン単板（含水率は接着剤塗布前）を
介して積層し、圧力８ｋｇ／ｃｍ2 、温度１２０℃で７
分間熱圧して大きさが９４５ｍｍ×１８４０ｍｍの複合
板を形成し、これを三分割して大きさが３１３ｍｍ×１
８４０ｍｍの複合板を得た。この複合板の表面にプレコ
ート化粧紙（原紙重量２３ｇ／ｍ2 ）を貼着するととも
にその裏面にシーリング塗料としてポリウレタン樹脂塗
料を２０ｇ／ｍ2 塗布して乾燥させて所望の化粧複合板
を得た。この化粧複合板の反りを製造後４８時間経って
から測定したところ、長手方向で２．０ｍｍ、幅方向で
１．０ｍｍ逆お椀状に反っていたが、全体としてはほぼ
平滑なものであった。なお、反りの割合を示す数値は、
複合板を水平面においた時に中央部が凸になっている場
合をプラスで示し、長手方向の中央部と水平面との距
離、幅方向の中央部と水平面との距離を測定した。Example 1 A melamine type MDF made of softwood having a thickness of 2.7 mm was dried in a hot plate at a temperature of 120 ° C. for 20 minutes to make the water content 2%. Separately as a top plate
Radia-tapain of 7 mm, thickness 3.2 mm as core plate
Radia-tapain of 1.7 mm thickness as a back plate was pressed with a urea-melamine resin adhesive at a pressure of 8
A softwood plywood having a water content of 10% was produced by hot-pressing for 4 minutes under a hot-press condition of kg / cm 2 and a temperature of 120 ° C. MDF and softwood plywood adjusted to the above moisture content, a urea melamine resin adhesive applied to both surfaces at 380 g / m 2 , thickness 3.2 mm,
Laminated with 12% moisture content lauan veneer (water content is before applying adhesive), pressure 8kg / cm 2 , temperature at 120 ° C, 7
A composite plate having a size of 945 mm x 1840 mm was formed by heating and pressing for 3 minutes, and this was divided into three to have a size of 313 mm x 1
An 840 mm composite plate was obtained. A precoated decorative paper (base paper weight 23 g / m 2 ) was adhered to the surface of this composite plate, and a polyurethane resin coating was applied as a sealing coating to the back surface at 20 g / m 2 and dried to obtain a desired decorative composite plate. . When the warpage of this decorative composite board was measured 48 hours after production, it was warped 2.0 mm in the longitudinal direction and 1.0 mm in the width direction into an inverted bowl shape, but was almost smooth as a whole. . The numerical value indicating the warpage ratio is
When the composite plate was placed on a horizontal plane, the case where the center was convex was indicated by a plus sign, and the distance between the center in the longitudinal direction and the horizontal plane and the distance between the center in the width direction and the horizontal plane were measured.
【００１６】[0016]
【実施例２】厚み２．７ｍｍの針葉樹を原料としたメラ
ミンタイプのＭＤＦを温度１２０℃の熱盤内で２０分間
乾燥して含水率を２％にした。別に表板として厚さ１．
７ｍｍのラジア−タパイン、心板として厚さ３．２ｍｍ
のラジア−タパイン、裏板として厚さ１．７ｍｍのラジ
ア−タパインを尿素メラミン樹脂接着剤を介して圧力８
ｋｇ／ｃｍ2 、温度１２０℃の熱圧条件で４分間熱圧し
て含水率９％の針葉樹合板を製造した。上記含水率に調
整したＭＤＦと針葉樹合板とを、両面に尿素メラミン樹
脂接着剤を３８０ｇ／ｍ2 塗布した厚さ３．２ｍｍ、含
水率１２％のラワン単板（含水率は接着剤塗布前）を介
して積層し、圧力８ｋｇ／ｃｍ2 、温度１２０℃で７分
間熱圧して大きさが９４５ｍｍ×１８４０ｍｍの複合板
を形成し、これを三分割して大きさが３１３ｍｍ×１８
４０ｍｍの複合板を得た。この複合板の表面に厚み０．
３ｍｍのナラ単板を貼着するとともにその表面に上塗り
塗料として透明なポリウレタン樹脂塗料を３０ｇ／ｍ2
塗布し、裏面にはシーリング塗料として同じポリウレタ
ン樹脂塗料を２０ｇ／ｍ2 塗布して乾燥させて所望の化
粧複合板を得た。この化粧複合板の反りを製造後４８時
間経ってから測定したところ、長手方向で４．０ｍｍ、
幅方向で１．０ｍｍ逆お椀状に反っていたが、全体とし
てはほぼ平滑なものであった。Example 2 A melamine-type MDF made of softwood having a thickness of 2.7 mm was dried in a hot plate at a temperature of 120 ° C. for 20 minutes to obtain a water content of 2%. Separately as a top plate
Radia-tapain of 7 mm, thickness 3.2 mm as core plate
Radia-tapain of 1.7 mm thickness as a back plate was pressed with a urea-melamine resin adhesive at a pressure of 8
A softwood plywood having a water content of 9% was produced by hot-pressing for 4 minutes under a hot-press condition of kg / cm 2 and a temperature of 120 ° C. Rawan veneer with a thickness of 3.2 mm and a moisture content of 12%, with MDF and softwood plywood adjusted to the above moisture content applied on both surfaces with 380 g / m 2 of a urea melamine resin adhesive (water content before application of adhesive) The composite plate having a size of 945 mm × 1840 mm was formed by hot-pressing at a pressure of 8 kg / cm 2 and a temperature of 120 ° C. for 7 minutes.
A 40 mm composite plate was obtained. The surface of this composite plate has a thickness of 0.
A 3 mm oak veneer is adhered, and a transparent polyurethane resin paint is applied as a top coat on the surface at 30 g / m 2.
The same polyurethane resin coating as the sealing coating was applied at 20 g / m 2 on the back surface and dried to obtain a desired decorative composite board. When the warpage of this decorative composite board was measured 48 hours after production, it was 4.0 mm in the longitudinal direction,
It was warped 1.0 mm in the width direction into an inverted bowl shape, but was almost smooth as a whole.
【００１７】[0017]
【実施例３】厚み２．７ｍｍの針葉樹を原料としたメラ
ミンタイプのＭＤＦの表面にプレコート化粧紙（原紙重
量３０ｇ／ｍ2 ）を貼着した化粧紙貼りＭＤＦを、温度
１２０℃の熱盤内で２５分間乾燥して含水率を２％にし
た。別に表板として厚さ１．７ｍｍのラジア−タパイ
ン、心板として厚さ３．２ｍｍのラジア−タパイン、裏
板として厚さ１．７ｍｍのラジア−タパインを尿素メラ
ミン樹脂接着剤を介して圧力８ｋｇ／ｃｍ2 、温度１２
０℃の熱圧条件で４分間熱圧して含水率１２％の針葉樹
合板を製造した。上記含水率に調整した化粧紙貼りＭＤ
Ｆと針葉樹合板とを、両面に尿素メラミン樹脂接着剤を
３８０ｇ／ｍ2 塗布した厚さ３．２ｍｍ、含水率１２％
のラワン単板（含水率は接着剤塗布前）を介して積層
し、圧力８ｋｇ／ｃｍ2 、温度１２０℃で６分間熱圧し
て大きさが９４５ｍｍ×１８４０ｍｍの複合板を形成
し、これを三分割して大きさが３１３ｍｍ×１８４０ｍ
ｍの複合板を得た。この複合板の裏面にシーリング塗料
としてポリエステル樹脂塗料を２０ｇ／ｍ2 塗布して乾
燥させて所望の化粧複合板を得た。この化粧複合板の反
りを４８時間後に測定したところ、長手方向で４．０ｍ
ｍ、幅方向で２．０ｍｍ逆お椀状に反っていたが、全体
としてはほぼ平滑なものであった。Example 3 A decorative paper-attached MDF in which a precoated decorative paper (base paper weight 30 g / m 2 ) was adhered to the surface of a melamine type MDF made of softwood having a thickness of 2.7 mm was placed in a hot plate at a temperature of 120 ° C. For 25 minutes to a moisture content of 2%. Separately, a 1.7-mm-thick radia-tapain as a front plate, a 3.2-mm-thick radia-tapain as a core plate, and a 1.7-mm-thick radia-tapain as a back plate are subjected to pressure of 8 kg via a urea-melamine resin adhesive. / Cm 2 , temperature 12
A softwood plywood having a moisture content of 12% was produced by hot-pressing at 0 ° C for 4 minutes. MD with decorative paper adjusted to the above moisture content
F and softwood plywood, both sides coated with urea melamine resin adhesive at 380 g / m 2 , thickness 3.2 mm, water content 12%
Are laminated through a Lauan veneer (water content before the adhesive is applied), and hot-pressed at a pressure of 8 kg / cm 2 and a temperature of 120 ° C. for 6 minutes to form a composite plate having a size of 945 mm × 1840 mm. Divided into 313mm x 1840m
m composite board was obtained. A polyester resin paint as a sealing paint was applied at 20 g / m 2 on the back surface of the composite plate and dried to obtain a desired decorative composite plate. When the warpage of this decorative composite board was measured after 48 hours, it was 4.0 m in the longitudinal direction.
m, 2.0 mm in the width direction, but warped like an inverted bowl, but as a whole it was almost smooth.
【００１８】[0018]
【実施例４】厚み２．７ｍｍの針葉樹を原料としたメラ
ミンタイプのＭＤＦの表面に厚み０．６ｍｍのナラ単板
を貼着した銘木単板貼りＭＤＦを、温度１２０℃の熱盤
内で２５分間乾燥して含水率を２％にした。別に表板と
して厚さ１．７ｍｍのラジア−タパイン、心板として厚
さ３．２ｍｍのラジア−タパイン、裏板として厚さ１．
７ｍｍのラジア−タパインを尿素メラミン樹脂接着剤を
介して圧力８ｋｇ／ｃｍ2 、温度１２０℃の熱圧条件で
４分間熱圧して含水率１２％の針葉樹合板を製造した。
上記含水率に調整した銘木単板貼りＭＤＦと針葉樹合板
とを、両面に尿素メラミン樹脂接着剤を３８０ｇ／ｍ2
塗布した厚さ３．２ｍｍ、含水率１２％のラワン単板
（含水率は接着剤塗布前）を介して積層し、圧力８ｋｇ
／ｃｍ2 、温度１２０℃で７分間熱圧して大きさが９４
５ｍｍ×１８４０ｍｍの複合板を形成し、これを三分割
して大きさが３１３ｍｍ×１８４０ｍｍの複合板を得
た。この複合板の表面に上塗り塗料として透明なアミノ
アルキッド樹脂塗料を２０ｇ／ｍ2 塗布し、裏面にはシ
ーリング塗料として同じポリウレタン樹脂塗料を２０ｇ
／ｍ2 塗布して乾燥させて所望の化粧複合板を得た。こ
の化粧複合板の反りを４８時間後に測定したところ、長
手方向で５．０ｍｍ、幅方向で１．０ｍｍ逆お椀状に反
っていたが、全体としてはほぼ平滑なものであった。Example 4 A melamine-type MDF made of softwood having a thickness of 2.7 mm was used as a raw material. Dry for 2 minutes to a moisture content of 2%. Separately, a 1.7-mm-thick radius-tapain as a front plate, a 3.2-mm-thick radius-tapain as a core plate, and a 1.0-mm-thick back plate.
Radia-tapain of 7 mm was hot-pressed for 4 minutes at a pressure of 8 kg / cm 2 and a temperature of 120 ° C. for 4 minutes through a urea-melamine resin adhesive to produce softwood plywood having a water content of 12%.
The MDF and the softwood plywood, each of which has been adjusted to the above-mentioned moisture content, are coated with urea melamine resin adhesive on both surfaces at 380 g / m 2.
Laminated through a 3.2 mm thick Lauan veneer with a moisture content of 12% (water content before application of adhesive), pressure 8 kg
/ Cm 2 at a temperature of 120 ° C. for 7 minutes to give a size of 94
A composite plate having a size of 5 mm x 1840 mm was formed and divided into three parts to obtain a composite plate having a size of 313 mm x 1840 mm. 20 g / m 2 of a transparent amino alkyd resin coating is applied as a top coating to the surface of the composite plate, and 20 g of the same polyurethane resin coating as a sealing coating is applied to the back surface.
/ M 2 and dried to obtain the desired decorative composite board. When the warp of this decorative composite board was measured 48 hours later, it was warped in a reverse bowl shape with a length of 5.0 mm in the longitudinal direction and 1.0 mm in the width direction, but was almost smooth as a whole.
【００１９】[0019]
【実施例５】実施例１に用いた含水率１０％の針葉樹合
板の代わりに、含水率７％の針葉樹合板を用い、含水率
１２％のラワン単板の代わりに、含水率１０％のラワン
単板を用いた以外は、実施例１と同様にして所望の化粧
複合板を得た。この化粧複合板の反りを４８時間後に測
定したところ、長手方向で３．０ｍｍ、幅方向で２．０
ｍｍ逆お椀状に反っていたが、全体としてはほぼ平滑な
ものであった。EXAMPLE 5 Instead of the softwood plywood having a water content of 10% used in Example 1, a softwood plywood having a water content of 7% was used. A desired decorative composite plate was obtained in the same manner as in Example 1 except that a veneer was used. When the warp of this decorative composite board was measured after 48 hours, it was 3.0 mm in the longitudinal direction and 2.0 mm in the width direction.
Although it was warped in the shape of a mm-reverse bowl, it was almost smooth as a whole.
【００２０】[0020]
【実施例６】実施例１に用いた含水率１０％の針葉樹合
板の代わりに、表板、心板および裏板として、それぞれ
厚さ１．７ｍｍ、３．２ｍｍ、１．７ｍｍ、含水率１０
％のラジア−タパインの単板を用い、ＭＤＦ、ラワン単
板、三枚のラジア−タパイン単板を接着剤を介して積層
し、圧力８ｋｇ／ｃｍ2 、温度１２０℃で８分間熱圧し
た以外は、実施例１と同様にして所望の化粧複合板を得
た。この化粧複合板の反りを４８時間後に測定したとこ
ろ、長手方向で２．０ｍｍ、幅方向はほとんど０であっ
た。Example 6 Instead of the softwood plywood having a water content of 10% used in Example 1, the top plate, the core plate and the back plate were 1.7 mm, 3.2 mm, 1.7 mm, and 10% in water content, respectively.
% Radia-tapain veneer, MDF, lauan veneer, and three radia-tapain veneers were laminated via an adhesive, and hot-pressed at a pressure of 8 kg / cm 2 and a temperature of 120 ° C. for 8 minutes. In the same manner as in Example 1, a desired decorative composite plate was obtained. When the warp of this decorative composite board was measured after 48 hours, it was 2.0 mm in the longitudinal direction and almost 0 in the width direction.
【００２１】[0021]
【実施例７】実施例１において、銘木単板貼りＭＤＦを
温度１２０℃の熱風乾燥炉で６０分間乾燥して含水率を
１．０％にした以外は実施例１と同様にして所望の化粧
複合板を得た。この化粧複合板の４８時間後の反りは、
長手方向で２．０ｍｍ、幅方向で２．０ｍｍで逆お椀状
に反っていたが、全体としてはほぼ平滑なものであっ
た。Example 7 A desired makeup was prepared in the same manner as in Example 1, except that the MDF with the nameplate veneer was dried in a hot air drying oven at a temperature of 120 ° C. for 60 minutes to reduce the water content to 1.0%. A composite plate was obtained. The warpage of this decorative composite board after 48 hours is
Although it was 2.0 mm in the longitudinal direction and 2.0 mm in the width direction and warped in an inverted bowl shape, it was almost smooth as a whole.
【００２２】[0022]
【実施例８】実施例１において、ラワン単板の繊維方向
を針葉樹合板の表単板の繊維方向と同一方向にした以外
は実施例１と同様にして所望の化粧複合板を得た。この
化粧複合板の４８時間後の反りは、長手方向で５．０ｍ
ｍ、幅方向で３．０ｍｍで逆お椀状に反っていたが、全
体としてはほぼ平滑なものであった。Example 8 A desired decorative composite plate was obtained in the same manner as in Example 1, except that the fiber direction of the Lauan veneer was the same as the fiber direction of the front veneer of the softwood plywood. The warp of this decorative composite board after 48 hours was 5.0 m in the longitudinal direction.
m, which was 3.0 mm in the width direction and warped in an inverted bowl shape, but was substantially smooth as a whole.
【００２３】[0023]
【実施例９】実施例２に用いた含水率９％の針葉樹合板
の代わりに、表板、心板および裏板として、それぞれ厚
さ１．７ｍｍ、３．２ｍｍ、１．７ｍｍ、含水率１０％
のラジア−タパインの単板を用い、ＭＤＦ、ラワン単
板、三枚のラジア−タパイン単板を接着剤を介して積層
し、圧力８ｋｇ／ｃｍ2 、温度１２０℃で８分間熱圧し
た以外は、実施例２と同様にして所望の化粧複合板を得
た。この化粧複合板の反りを４８時間後に測定したとこ
ろ、長手方向で４．０ｍｍ、幅方向はほとんど０であっ
た。Example 9 Instead of the softwood plywood having a water content of 9% used in Example 2, the top plate, the core plate and the back plate were respectively 1.7 mm, 3.2 mm, 1.7 mm, and a water content of 10 mm. %
Except that MDF, Rawan veneer, and three Radia-tapain veneers were laminated via an adhesive, and hot-pressed at a pressure of 8 kg / cm 2 and a temperature of 120 ° C. for 8 minutes. In the same manner as in Example 2, a desired decorative composite board was obtained. When the warpage of this decorative composite board was measured 48 hours later, it was 4.0 mm in the longitudinal direction and almost 0 in the width direction.
【００２４】[0024]
【実施例１０】実施例２において、ラワン単板の繊維方
向を針葉樹合板の表単板の繊維方向と同一方向にした以
外は実施例２と同様にして所望の化粧複合板を得た。こ
の化粧複合板の４８時間後の反りは、長手方向で６．０
ｍｍ、幅方向で２．０ｍｍで逆お椀状に反っていたが、
全体としてはほぼ平滑なものであった。Example 10 A desired decorative composite plate was obtained in the same manner as in Example 2, except that the fiber direction of the Lauan veneer was the same as the fiber direction of the front veneer of the softwood plywood. The warp of this decorative composite board after 48 hours was 6.0 in the longitudinal direction.
mm, 2.0 mm in the width direction, it was warped in an inverted bowl shape,
The whole was almost smooth.
【００２５】[0025]
【実施例１１】実施例２において、ラワン単板の厚みを
２．０ｍｍとした以外は実施例２と同様にして所望の化
粧複合板を得た。この化粧複合板の４８時間後の反り
は、長手方向で２．０ｍｍ、幅方向で３．０ｍｍで逆お
椀状に反っていたが、全体としてはほぼ平滑なものであ
った。Example 11 A desired decorative composite plate was obtained in the same manner as in Example 2, except that the thickness of the Lauan veneer was changed to 2.0 mm. The warp of the decorative composite board after 48 hours was 2.0 mm in the longitudinal direction and 3.0 mm in the width direction, and was warped in an inverted bowl shape, but was substantially smooth as a whole.
【００２６】[0026]
【実施例１２】実施例４において、針葉樹合板の単板厚
み構成を、表板３．２ｍｍ、心板３．２ｍｍ、裏板３．
２ｍｍにした以外は実施例４と同様にして所望の化粧複
合板を得た。この化粧複合板の４８時間後の反りは、長
手方向で４．０ｍｍ、幅方向で１．０ｍｍで逆お椀状に
反っていたが、全体としてはほぼ平滑なものであった。Example 12 In Example 4, the thickness of the veneer softwood plywood was 3.2 mm for the front plate, 3.2 mm for the core plate, and 3 mm for the back plate.
A desired decorative composite plate was obtained in the same manner as in Example 4 except that the thickness was changed to 2 mm. After 48 hours, the decorative composite plate had a warp of 4.0 mm in the longitudinal direction and 1.0 mm in the width direction, and was warped in an inverted bowl shape, but was substantially smooth as a whole.
【００２７】[0027]
【実施例１３】実施例４において、ＭＤＦの厚みを２．
０ｍｍとした以外は実施例４と同様にして所望の化粧複
合板を得た。この化粧複合板の４８時間後の反りは長手
方向で４．０ｍｍ、幅方向で１．０ｍｍで逆お椀状に反
っていたが、全体としてはほぼ平滑なものであった。Embodiment 13 In the fourth embodiment, the thickness of the MDF is set to 2.
A desired decorative composite board was obtained in the same manner as in Example 4 except that the thickness was set to 0 mm. After 48 hours, the decorative composite board had a warp of 4.0 mm in the longitudinal direction and 1.0 mm in the width direction and was warped in an inverted bowl shape, but was almost smooth as a whole.
【００２８】[0028]
【実施例１４】実施例１に用いた含水率２％のＭＤＦの
代わりに、含水率４％のＭＤＦを用い、含水率１０％の
針葉樹合板、含水率１２％のラワン単板の代わりに、含
水率１５％の針葉樹合板、ラワン単板を用いた以外は、
実施例１と同様にして所望の化粧複合板を得た。この化
粧複合板の反りを４８時間後に測定したところ、長手方
向で５．０ｍｍ、幅方向で３．０ｍｍ逆お椀状に反って
いたが、全体としてはほぼ平滑なものであった。EXAMPLE 14 Instead of the MDF having a water content of 2% used in Example 1, MDF having a water content of 4% was used, and instead of softwood plywood having a water content of 10% and lauan veneer having a water content of 12%, Except for using softwood plywood with a moisture content of 15% and lauan veneer,
A desired decorative composite plate was obtained in the same manner as in Example 1. When the warp of this decorative composite board was measured after 48 hours, it was warped in a reverse bowl shape with a length of 5.0 mm in the longitudinal direction and 3.0 mm in the width direction, but was almost smooth as a whole.
【００２９】[0029]
【実施例１５】実施例４に用いた含水率２％の銘木単板
貼りＭＤＦの代わりに、含水率６％の銘木単板貼りＭＤ
Ｆを用い、含水率１２％の針葉樹合板、ラワン単板の代
わりに、含水率１８％の針葉樹合板、ラワン単板を用い
た以外は、実施例４と同様にして所望の化粧複合板を得
た。この化粧複合板の反りを４８時間後に測定したとこ
ろ、長手方向で５．０ｍｍ、幅方向で３．０ｍｍ逆お椀
状に反っていたが、全体としてはほぼ平滑なものであっ
た。Example 15 Instead of the MDF with a moisture content of 2% used in Example 4, the MD with a moisture content of 6% was used.
Using F, a desired decorative composite board was obtained in the same manner as in Example 4, except that a softwood plywood having a moisture content of 18% and a Lauan veneer were used instead of the softwood plywood having a moisture content of 12% and the Lauan veneer. Was. When the warp of this decorative composite board was measured after 48 hours, it was warped in a reverse bowl shape with a length of 5.0 mm in the longitudinal direction and 3.0 mm in the width direction, but was almost smooth as a whole.
【００３０】[0030]
【比較例１】実施例２において、ＭＤＦの含水率を９％
に変えた以外は実施例２と同様にして化粧複合板を得
た。この化粧複合板の反りを４８時間後に測定したとこ
ろ、長手方向で−２２．０ｍｍ、幅方向で−１１．０ｍ
ｍで、お椀状に反っていた。なお、中央部が凹になって
いる場合、複合板を裏向けにし、長手方向の中央部と水
平面との距離、幅方向の中央部と水平面との距離を測定
した数値にマイナスを付した。Comparative Example 1 In Example 2, the water content of MDF was 9%.
A decorative composite plate was obtained in the same manner as in Example 2 except that the composition was changed to. When the warpage of this decorative composite board was measured after 48 hours, -22.0 mm in the longitudinal direction and -11.0 m in the width direction.
m, it was warped in a bowl shape. When the central portion was concave, the composite plate was turned upside down, and the numerical value obtained by measuring the distance between the central portion in the longitudinal direction and the horizontal plane and the distance between the central portion in the width direction and the horizontal plane was negative.
【００３１】[0031]
【比較例２】実施例４において、銘木単板貼りＭＤＦと
ラワン単板の含水率を４％に変えた以外は、実施例４と
同様にして化粧複合板を得た。この化粧複合板の反りを
４８時間後に測定したところ、長手方向で−２６．０ｍ
ｍ、幅方向で−５．０ｍｍで、お椀状に反っていた。Comparative Example 2 A decorative composite plate was obtained in the same manner as in Example 4, except that the moisture content of the MDF and the Rawan veneer were changed to 4%. When the warpage of this decorative composite board was measured 48 hours later, it was −26.0 m in the longitudinal direction.
m, -5.0 mm in the width direction, and warped like a bowl.
【００３２】[0032]
【発明の効果】以上のように、この発明は広葉樹単板の
使用量を最小限に抑えることができ、かつ、表裏面の含
水率のバランスを取ることによって逆お椀状に若干反っ
ているか、あるいはほぼ平滑なものであって、床板や壁
板として施工しても何等問題が生じない化粧複合板を得
ることができるものである。また、裏面に塗布したシ−
リング塗料により裏面からの吸湿を防止することもでき
るものである。As described above, according to the present invention, the amount of hardwood veneer used can be kept to a minimum, and by slightly balancing the water content on the front and back surfaces, the present invention is slightly warped in an inverted bowl shape. Alternatively, it is possible to obtain a decorative composite plate which is substantially smooth and does not cause any problem even when constructed as a floor plate or a wall plate. Also, the sheet applied to the back
The ring paint can also prevent moisture absorption from the back surface.
【図１】この発明に係る化粧複合板の製造工程を示す斜
視図。FIG. 1 is a perspective view showing a manufacturing process of a decorative composite board according to the present invention.
【図２】この発明に係る化粧複合板の他の製造工程を示
す斜視図。FIG. 2 is a perspective view showing another manufacturing process of the decorative composite board according to the present invention.
【図３】この発明に係る化粧複合板の他の製造工程を示
す斜視図。FIG. 3 is a perspective view showing another manufacturing process of the decorative composite board according to the present invention.
【図４】この発明に係る化粧複合板の他の製造工程を示
す斜視図。FIG. 4 is a perspective view showing another manufacturing process of the decorative composite board according to the present invention.
１ ＭＤＦ ２ 広葉樹単板 ３、４、５ 針葉樹単板 ６ 化粧シート DESCRIPTION OF SYMBOLS 1 MDF 2 Hardwood veneer 3, 4, 5 Softwood veneer 6 Decorative sheet
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B27D 5/00 B27D 1/04 B32B 21/02 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) B27D 5/00 B27D 1/04 B32B 21/02
Claims (16)
着剤を介して順々に積層し、これを加熱加圧するに際
し、ＭＤＦの含水率を広葉樹単板や針葉樹合板の含水率
よりも低めに設定して、それらの含水率変化に伴う収縮
差を利用して複合板を製造し、この複合板の表面に予め
上塗り塗料が塗布されている化粧シートを貼着するとと
もに、裏面にはシーリング塗料を塗布することを特徴と
する化粧複合板の製造方法。1. An MDF, a hardwood veneer and a softwood plywood are sequentially laminated via an adhesive, and when heated and pressurized, the water content of the MDF is lower than that of the hardwood veneer or the softwood plywood. The composite board is manufactured using the difference in shrinkage due to the change in the water content, and a decorative sheet coated with a top coat is applied to the surface of the composite board, and the back surface is sealed. A method for producing a decorative composite board, characterized by applying a paint.
着剤を介して順々に積層し、これを加熱加圧するに際
し、ＭＤＦの含水率を広葉樹単板や針葉樹合板の含水率
よりも低めに設定して、それらの含水率変化に伴う収縮
差を利用して複合板を製造し、この複合板の表面に化粧
シートを貼着後上塗り塗料を塗布するとともに、裏面に
はシーリング塗料を塗布することを特徴とする化粧複合
板の製造方法。2. An MDF, a hardwood veneer and a softwood plywood are sequentially laminated via an adhesive, and when heated and pressed, the water content of the MDF is lower than that of the hardwood veneer or the softwood plywood. The composite board is manufactured using the difference in shrinkage due to the change in the water content, and a top coat is applied after applying a decorative sheet to the surface of the composite board, and a sealing paint is applied to the back side. A method for producing a decorative composite board.
板と針葉樹合板の含水率を気乾状態にすることを特徴と
する請求項１あるいは請求項２記載の化粧複合板の製造
方法。3. The method for producing a decorative composite plate according to claim 1, wherein the moisture content of the MDF is 3% or less, and the moisture content of the hardwood veneer and the softwood plywood is air-dried. .
表板の繊維方向と直交させた状態で積層することを特徴
とする請求項１、請求項２あるいは請求項３記載の化粧
複合板の製造方法。4. The decorative composite board according to claim 1, wherein the fiber direction of the hardwood veneer is laminated in a state where the fiber direction of the hardwood plywood is orthogonal to the fiber direction of the top plate of the softwood plywood. Manufacturing method.
ートを表面に貼着した化粧シート貼りＭＤＦと広葉樹単
板と針葉樹合板とを接着剤を介して順々に積層し、これ
を加熱加圧するに際し、化粧シート貼りＭＤＦの含水率
を広葉樹単板や針葉樹合板の含水率よりも低めに設定し
て、それらの含水率変化に伴う収縮差を利用して複合板
を製造し、この複合板の裏面にシーリング塗料を塗布す
ることを特徴とする化粧複合板の製造方法。5. A decorative sheet-attached MDF in which a decorative sheet to which a top coat has been applied in advance is pasted on its surface, a hardwood veneer and a softwood plywood are sequentially laminated via an adhesive, and heated and pressed. At this time, the moisture content of the MDF with the decorative sheet is set to be lower than the moisture content of the hardwood veneer or the softwood plywood, and a composite board is manufactured using the difference in shrinkage due to the change in the moisture content. A method for producing a decorative composite board, comprising applying a sealing paint to the back surface.
貼りＭＤＦと広葉樹単板と針葉樹合板とを接着剤を介し
て順々に積層し、これを加熱加圧するに際し、化粧シー
ト貼りＭＤＦの含水率を広葉樹単板や針葉樹合板の含水
率よりも低めに設定して、それらの含水率変化に伴う収
縮差を利用して複合板を製造し、この複合板の表面には
上塗り塗料を、裏面にはシーリング塗料を塗布すること
を特徴とする化粧複合板の製造方法。6. A decorative sheet-attached MDF in which a decorative sheet is attached to its surface, a hardwood veneer and a softwood plywood are sequentially laminated via an adhesive, and when this is heated and pressurized, water is applied to the decorative sheet-attached MDF. The ratio is set lower than the moisture content of hardwood veneer or softwood plywood, and a composite board is manufactured using the difference in shrinkage due to the change in the moisture content. A method for producing a decorative composite board, characterized by applying a sealing paint to the composite board.
下に、広葉樹単板と針葉樹合板の含水率を気乾状態にす
ることを特徴とする請求項５あるいは請求項６記載の化
粧複合板の製造方法。7. The decorative composite board according to claim 5, wherein the moisture content of the MDF with the decorative sheet is 3% or less, and the moisture content of the hardwood veneer and the softwood plywood is air-dried. Manufacturing method.
表板の繊維方向と直交させた状態で積層することを特徴
とする請求項５、請求項６あるいは請求項７記載の化粧
複合板の製造方法。8. The decorative composite board according to claim 5, wherein the fiber direction of the hardwood veneer is laminated in a state where the fiber direction of the hardwood plywood is orthogonal to the fiber direction of the top plate of the softwood plywood. Manufacturing method.
板とを接着剤を介して順々に積層し、これを加熱加圧す
るに際し、ＭＤＦの含水率を広葉樹単板や針葉樹単板の
含水率よりも低めに設定して、それらの含水率変化に伴
う収縮差を利用して複合板を製造し、この複合板の表面
に予め上塗り塗料が塗布されている化粧シートを貼着
後、裏面にシーリング塗料を塗布することを特徴とする
化粧複合板の製造方法。9. An MDF, a hardwood veneer, and a plurality of softwood veneers are sequentially laminated via an adhesive, and when heated and pressurized, the water content of the MDF is adjusted to a value of the hardwood veneer or the softwood veneer. Set a lower than the moisture content, to produce a composite board using the difference in shrinkage due to their moisture content change, after pasting a decorative sheet to which a topcoat has been applied in advance on the surface of this composite board, A method for producing a decorative composite board, comprising applying a sealing paint to the back surface.
単板とを接着剤を介して順々に積層し、これを加熱加圧
するに際し、ＭＤＦの含水率を広葉樹単板や針葉樹単板
の含水率よりも低めに設定して、それらの含水率変化に
伴う収縮差を利用して複合板を製造し、この複合板の表
面に化粧シートを貼着後上塗り塗料を塗布するととも
に、裏面にはシーリング塗料を塗布することを特徴とす
る化粧複合板の製造方法。10. An MDF, a hardwood veneer, and a plurality of softwood veneers are sequentially laminated via an adhesive, and when this is heated and pressurized, the water content of the MDF is adjusted to the value of the hardwood veneer or the softwood veneer. By setting it lower than the water content, a composite board is manufactured using the difference in shrinkage due to the change in the water content, and a topsheet is applied after applying a decorative sheet to the surface of the composite board, and Is a method for producing a decorative composite board, characterized by applying a sealing paint.
単板と針葉樹合板の含水率を気乾状態にすることを特徴
とする請求項９あるいは請求項１０記載の化粧複合板の
製造方法。11. The method for producing a decorative composite board according to claim 9, wherein the moisture content of the MDF is 3% or less, and the moisture content of the hardwood veneer and the softwood plywood is air-dried. .
葉樹単板の繊維方向と直交させた状態で積層することを
特徴とする請求項９、請求項１０あるいは請求項１１記
載の化粧複合板の製造方法。12. The cosmetic composite according to claim 9, wherein the hardwood veneer is laminated in a state where the fiber direction of the hardwood veneer is orthogonal to the fiber direction of the uppermost softwood veneer. Plate manufacturing method.
シートを表面に貼着した化粧シート貼りＭＤＦと広葉樹
単板と複数枚の針葉樹単板とを接着剤を介して順々に積
層し、これを加熱加圧するに際し、化粧シート貼りＭＤ
Ｆの含水率を広葉樹単板や針葉樹単板の含水率よりも低
めに設定して、それらの含水率変化に伴う収縮差を利用
して複合板を製造し、この複合板の裏面にシーリング塗
料を塗布することを特徴とする化粧複合板の製造方法。13. A decorative sheet-attached MDF in which a decorative sheet to which a top coat is applied in advance is stuck on the surface, a hardwood veneer and a plurality of softwood veneers are sequentially laminated via an adhesive. When applying heat and pressure, apply a decorative sheet MD
The moisture content of F is set lower than the moisture content of hardwood veneer or softwood veneer, and a composite board is manufactured by utilizing a difference in shrinkage due to a change in the moisture content of the veneer. A method for producing a decorative composite board, characterized by applying a composition.
ト貼りＭＤＦと広葉樹単板と複数枚の針葉樹単板とを接
着剤を介して順々に積層し、これを加熱加圧するに際
し、化粧シート貼りＭＤＦの含水率を広葉樹単板や針葉
樹単板の含水率よりも低めに設定して、それらの含水率
変化に伴う収縮差を利用して複合板を製造し、この複合
板の表面には上塗り塗料を、裏面にはシーリング塗料を
塗布することを特徴とする化粧複合板の製造方法。14. A decorative sheet-attached MDF having a decorative sheet adhered to its surface, a hardwood veneer and a plurality of softwood veneers are sequentially laminated via an adhesive, and when this is heated and pressed, the decorative sheet is The moisture content of the affixed MDF is set lower than the moisture content of the hardwood veneer or the softwood veneer, and a composite board is manufactured using the difference in shrinkage due to the change in the moisture content. A method for producing a decorative composite board, comprising applying a topcoat paint and a sealing paint on the back surface.
以下に、広葉樹単板と針葉樹単板の含水率を気乾状態に
することを特徴とする請求項１３あるいは請求項１４記
載の化粧複合板の製造方法。15. The moisture content of the MDF with the decorative sheet attached is 3%.
The method for producing a decorative composite plate according to claim 13 or 14, wherein the moisture content of the hardwood veneer and the softwood veneer is air-dried.
葉樹単板の繊維方向と直交させた状態で積層することを
特徴とする請求項１３、請求項１４あるいは請求項１５
記載の化粧複合板の製造方法。16. The laminate according to claim 13, wherein the fiber direction of the hardwood veneer is perpendicular to the fiber direction of the uppermost softwood veneer.
A method for producing the decorative composite board according to the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29449993A JP3305074B2 (en) | 1993-10-29 | 1993-10-29 | Manufacturing method of decorative composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29449993A JP3305074B2 (en) | 1993-10-29 | 1993-10-29 | Manufacturing method of decorative composite board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08132404A JPH08132404A (en) | 1996-05-28 |
| JP3305074B2 true JP3305074B2 (en) | 2002-07-22 |
Family
ID=17808565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29449993A Expired - Lifetime JP3305074B2 (en) | 1993-10-29 | 1993-10-29 | Manufacturing method of decorative composite board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3305074B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247300A (en) * | 2006-03-17 | 2007-09-27 | Pal Co Ltd | Flooring |
| CN114630741A (en) * | 2019-11-29 | 2022-06-14 | 松下知识产权经营株式会社 | Method for manufacturing laminated wood board |
-
1993
- 1993-10-29 JP JP29449993A patent/JP3305074B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08132404A (en) | 1996-05-28 |
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