JPH10121706A - Composite flooring whose surface layer is medium grade fiberboard and manufacture thereof - Google Patents

Composite flooring whose surface layer is medium grade fiberboard and manufacture thereof

Info

Publication number
JPH10121706A
JPH10121706A JP29947996A JP29947996A JPH10121706A JP H10121706 A JPH10121706 A JP H10121706A JP 29947996 A JP29947996 A JP 29947996A JP 29947996 A JP29947996 A JP 29947996A JP H10121706 A JPH10121706 A JP H10121706A
Authority
JP
Japan
Prior art keywords
medium
veneers
laminated
fiberboard
surface layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP29947996A
Other languages
Japanese (ja)
Other versions
JP3909897B2 (en
Inventor
Yoshio Nakamura
良雄 中村
Akihiro Takehara
章宏 竹原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KARIYA KK
Daiken Trade and Industry Co Ltd
Original Assignee
KARIYA KK
Daiken Trade and Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KARIYA KK, Daiken Trade and Industry Co Ltd filed Critical KARIYA KK
Priority to JP29947996A priority Critical patent/JP3909897B2/en
Publication of JPH10121706A publication Critical patent/JPH10121706A/en
Application granted granted Critical
Publication of JP3909897B2 publication Critical patent/JP3909897B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce a warp of a composite flooring by combining veneers which are to be provided in a conifer or a broadleaf tree, keeping the direction of fibers orthogonal to each other and laminating veneers of more than a certain percent, with their heart sides faces to a medium-grade fiberboard. SOLUTION: A composite flooring 1 is made up of a natural wood fancy veneer 2, the uppermost layer, a medium-grade fiberboard 3, and coniferous veneers 4 to 7 in sequence. The medium-grade fiberboard 3 and the coniferous veneers 4 to 7 are combined, keeping the direction of fibers orthogonal to each other, and at least two-third or more of the veneers to be laminated are laminated and adhered, with their heart sides faced to the medium-grade fiberboard 3. Thus the medium-grade fiberboard 3 and the veneers 4 to 7 can be adhered strongly, and the secular change of the composite flooring 1 can be reduced. Warping can be also reduced. Even if there happens a warp, it can be kept merely as a deformation into convex form and thereby makes it possible to maintain the surface of the flooring in good condition for a long time.

Description

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

【０００１】[0001]

【発明の属する技術分野】この発明は、中質繊維板（Ｍ
ＤＦ）を表層とする複合フローリングおよびその製造方
法に関するものである。TECHNICAL FIELD The present invention relates to a medium fiberboard (M
DF) and a method of manufacturing the same.

【０００２】[0002]

【従来の技術】中質繊維板（ＭＤＦ）（以下単に中質繊
維板という）は、抽出した木材繊維に接着剤を添加して
成型・熱圧した密度０．３５ｇ／ｃｍ3 以上０．８ｇ／
ｃｍ3未満のものをいい、その緻密さと平滑さから高精
度な均質性を有し、抽出した木材繊維の特質を継受して
対磨耗性、遮音性、断熱性、耐寒性に優れているため、
この中質繊維板を表層として、針葉樹もしくは広葉樹の
合板と接着する複合板が知られている。そしてその中質
繊維板と合板（針葉樹、広葉樹）の接着方法として常温
硬化型の接着剤を使用している。2. Description of the Related Art Medium-density fiberboard (MDF) (hereinafter, simply referred to as medium-density fiberboard) is obtained by adding an adhesive to extracted wood fiber, molding and hot-pressing the resin to a density of 0.35 g / cm 3 or more and 0.8 g or more. /
Less than 3 cm3, which has high precision homogeneity due to its denseness and smoothness, inherits the characteristics of extracted wood fibers, and has excellent wear resistance, sound insulation, heat insulation, and cold resistance ,
A composite board is known in which this medium fiber board is used as a surface layer and adheres to softwood or hardwood plywood. As a method for bonding the medium fiberboard and plywood (softwood, hardwood), a cold-setting adhesive is used.

【０００３】[0003]

【発明が解決しようとする課題】従来、前記中質繊維板
を表層とした複合合板は、中質繊維板の伸縮性が針葉樹
もしくは広葉樹の合板より大きいため、フローリングと
した場合に、その長手方向および幅方向に板反りが発生
し、実用的に問題が多いものである。また従来、板反り
をなくす目的で常温硬化型の接着剤を使用しているが、
その硬化に時間がかかり能率が悪く、また接着について
も経時変化による板反りが大きく問題になっている。本
発明は、前述の欠点を解消し、板反りの少ないもの、お
よび仮に板反りが発生しても表面が僅かに凸湾曲面にな
るものを提供することを目的になされたものである。Conventionally, a composite plywood having the above-mentioned medium fiberboard as a surface layer has a higher elasticity than that of softwood or hardwood plywood. In addition, warpage occurs in the width direction, which is problematic in practice. Also, conventionally, cold-curing adhesives are used for the purpose of eliminating board warpage,
The curing takes a long time and the efficiency is poor, and the warpage of the plate due to the change with the passage of time is a serious problem. An object of the present invention is to solve the above-mentioned drawbacks and to provide an apparatus having little warpage and an apparatus having a slightly convex curved surface even if warpage occurs.

【０００４】[0004]

【課題を解決するための手段】中質繊維板を表層とし
た、合板（針葉樹と広葉樹の複合含む）との複合板を設
け、その小口面に雄ざね、雌ざね等を加工した中質繊維
板を表層とする複合フローリングにおいて、針葉樹もし
くは広葉樹から設ける単板を互いにその繊維方向を直交
方向に組み合せて積層されると共に、その積層される単
板の少なくとも２／３以上が、各木裏側を中質繊維板に
向って積層されることを特徴とする中質繊維板を表層と
する複合フローリングにある。[Means for Solving the Problems] A mid-size fiber obtained by processing a plywood (including a composite of softwood and hardwood) with a plywood (including a composite of softwood and hardwood) having a mid-size fiberboard as a surface layer, and processing the gross and female knurls on the small face thereof In a composite flooring having a board as a surface layer, veneers provided from softwood or hardwood are laminated by combining their fiber directions in a direction orthogonal to each other, and at least 2/3 or more of the laminated veneers have a back side of each tree. A composite flooring having a medium fiberboard as a surface layer characterized by being laminated toward a medium fiberboard.

【０００５】中質繊維板を表層に、針葉樹もしくは広葉
樹から設ける単板を、その繊維方向を直交方向に組合わ
せて積層すると共に、その積層する単板の少なくとも２
／３以上を、各木裏側を中質繊維板に向って積層したこ
とを特徴とする中質繊維板を表層とする複合フローリン
グの製造方法にある。[0005] Veneers provided from a softwood or hardwood with a medium fiberboard as a surface layer are laminated by combining the fiber directions in the orthogonal direction, and at least two of the laminated veneers are laminated.
/ 3 or more are laminated with the back side of each tree facing the medium fiberboard, and the method for producing a composite flooring using the medium fiberboard as a surface layer is characterized in that it is laminated.

【０００６】中質繊維板と合板部を熱硬化性接着剤によ
り製品の含水率管理をなして接着する製造方法としても
よいものである。[0006] The present invention is also applicable to a method of bonding a medium fiber board and a plywood part with a thermosetting adhesive while controlling the moisture content of the product.

【０００７】[0007]

【発明の実施の形態】中質繊維板を表層として、針葉樹
もしくは広葉樹との複合板を設け、小口面に雄ざね、雌
ざね等を加工した中質繊維板複合フローリングにおい
て、針葉樹もしくは広葉樹に設けられる各単板は、互い
にその繊維方向を直交方向に組み合せて積層されると共
に、その積層される単板の少なくとも２／３以上が、各
木裏側を中質繊維板に向って積層され、かつ中質繊維板
の表面に化粧単板を張り合せてなることを特徴とする中
質繊維板を表層とする複合フローリング。BEST MODE FOR CARRYING OUT THE INVENTION A composite board with softwood or hardwood is provided with a medium fiberboard as a surface layer, and a softwood or hardwood is provided on a medium fiberboard composite flooring in which a knurl or a female knurl is processed on a fore-edge surface. The veneers are laminated by combining their fiber directions in orthogonal directions, and at least 2/3 or more of the laminated veneers are laminated with the back of each tree facing the medium fiberboard, and A composite flooring having a medium fiberboard as a surface layer, wherein a decorative veneer is attached to a surface of the medium fiberboard.

【０００８】[0008]

【実施例】以下、この発明の中質繊維板を表層とする複
合フローリングを図面に示す実施例について説明する
と、図１は、この発明の中質繊維板を表層とする複合フ
ローリング１の横断面図で、最上層から天然木等の化粧
単板２、中質繊維板３、針葉樹単板４、５、６、７によ
り構成している。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a composite flooring using a medium fiberboard of the present invention as a surface layer. In the figure, a decorative veneer 2, such as a natural tree, a medium fiber board 3, and softwood veneers 4, 5, 6, 7 are formed from the top layer.

【０００９】上記各層は、図２および図３に示すよう
に、中質繊維板３と、針葉樹単板４、５、６、７は夫々
を図３に示すように、互いに繊維の方向を直交方向に組
み合わせ、且つ図４に示すように各単板の木裏側を中質
繊維板３にむけて配列して積層接着して製造する。As shown in FIGS. 2 and 3, each of the above-mentioned layers is composed of a medium fiber board 3 and softwood veneers 4, 5, 6, 7 each having a fiber direction orthogonal to each other as shown in FIG. 4, and the wooden back side of each veneer is arranged and laminated and bonded to the medium fiber board 3 as shown in FIG.

【００１０】図５は、この製造工程を示す説明図で、針
葉樹単板４と針葉樹単板６の両面に熱硬化型の接着剤１
０を塗布して積層し、これを加熱プレスして接着する。FIG. 5 is an explanatory view showing this manufacturing process. The thermosetting adhesive 1 is applied to both surfaces of the softwood veneer 4 and the softwood veneer 6.
0 is applied and laminated, and this is heated and pressed to be bonded.

【００１１】前記実施例は、表層の中質繊維板３の表面
に天然木等の化粧単板２を接着したものを提案したが、
図示しないが、塩化ビニールまたはその他の合成樹脂製
フイルム、シートもしくは板を接着する表装加工によっ
てもよく、また塗装を吹き付け、またはその他の加工手
段による塗装加工によってもよいものである。In the above-described embodiment, a decorative veneer 2 made of natural wood or the like is bonded to the surface of a medium fiberboard 3 of the surface layer.
Although not shown, the surface may be formed by bonding a film, sheet or plate made of vinyl chloride or other synthetic resin, or may be formed by spraying a coating or coating by other processing means.

【００１２】前記合成樹脂フイルムまたは合成樹脂板を
接着する表装加工、もしくは塗料を吹き付け、若しくは
その他の加工手段による塗装加工を中質繊維板３にする
場合は、前記針葉樹単板４、５、６、７からなる合板を
接着した後で行ってもよいものである。In the case where the intermediate fiber board 3 is to be subjected to the surface treatment for bonding the synthetic resin film or the synthetic resin plate, or to the coating process by spraying the paint or other processing means, the softwood veneers 4, 5, 6 are used. , 7 may be performed after bonding.

【００１３】図６は第２の実施例を示す側面図で、前記
針葉樹単板４、５、６を積層した合板部９ｂを接着して
完成する。この場合において、針葉樹単板４、５、６
は、互いに繊維の方向を直交方向に組み合わせ、且つ各
単板の木裏側を中質繊維板３に全て向けて配列してい
る。FIG. 6 is a side view showing a second embodiment, which is completed by bonding a plywood portion 9b in which the softwood veneers 4, 5, 6 are laminated. In this case, softwood veneers 4, 5, 6
Are arranged such that the directions of the fibers are mutually orthogonal, and the backsides of the individual veneers are all directed to the medium fiberboard 3.

【００１４】図７は第３の実施例を示す側面図で、前記
針葉樹単板４、５、６、７、８を積層した合板部９ｃを
接着して完成する。この時針葉樹単板４、５、６、７、
８は、その各単板を、互いに繊維の方向を直交方向に組
み合わせ、且つ各単板の木裏側を中質繊維板３に向けて
配列している。そして、表層の中質繊維板３の表面に天
然木等の化粧単板２を接着し、さらに所要の幅と長さに
切断し、その小口面に雄ざね、雌ざね等を加工して、表
面を着色、塗装して完成するものである。FIG. 7 is a side view showing a third embodiment, which is completed by bonding a plywood portion 9c in which the softwood veneers 4, 5, 6, 7, 8 are laminated. At this time, softwood veneers 4, 5, 6, 7,
Numeral 8 indicates that the veneers are combined with each other so that the directions of the fibers are orthogonal to each other, and the wooden back side of the veneers faces the medium fiber board 3. Then, the decorative veneer 2 such as natural wood is adhered to the surface of the medium fiberboard 3 of the surface layer, and further cut into required widths and lengths. It is completed by coloring and painting the surface.

【００１５】前記合板部９ｂ、合板部９ｃに置ける積層
単板の接着と中質繊維板３との接着は、熱硬化型の接着
剤を使用する。The bonding of the laminated veneer and the bonding of the intermediate fiber board 3 on the plywood portions 9b and 9c use a thermosetting adhesive.

【００１６】かくして、上記のように中質繊維板３の厚
みと、合板部を構成する針葉樹単板または広葉樹単板の
厚みと、その積層段数を適宜に変え、中質繊維板と合板
とを熱硬化型の接着剤で接着し、さらにさらに所要の幅
と長さに切断し、その小口面に雄ざね、雌ざね等を加工
して、下記のサイズの複合フローリングを製造する。 サイズ（ｍｍ） 長手方向 ９００． １，８００． ２，４２０． 等 巾 方向 ７６． ９０． １５０． ３０３． 等 厚 み ７．０ ９．０ １２．０ １５．０ １８．０ 等Thus, as described above, the thickness of the medium fiber board 3, the thickness of the softwood veneer or the hardwood veneer constituting the plywood portion, and the number of stacked layers are appropriately changed, and the medium fiberboard and the plywood are combined. Adhesion is made with a thermosetting adhesive, and further cut into required widths and lengths, and the fore-edge surface is processed with male and female knurls to produce a composite flooring having the following sizes. Size (mm) Longitudinal direction 900. 1,800. 2,420. Equal width direction 76. 90. 150. 303. Equal thickness 7.0 9.0 12.0 15.0 18.0 etc.

【００１７】[0017]

【発明の効果】この発明の中質繊維板を表層とする複合
フローリングおよびその製造方法は、上記のようにな
り、その合板部は単板の木裏側をその構成単板の少なく
とも２／３以上を中質繊維板に向けて接着するものであ
るから、全体として中質繊維板と合板を強固に接着する
ことができ、経時変化の少ない複合フローリングを提供
することができる。The composite flooring of the present invention using a medium fiberboard as a surface layer and a method for producing the same are as described above, and the plywood portion is made of a veneer with a wood back side of at least 2/3 or more of the constituent veneer. Is bonded to the medium fiberboard, so that the medium fiberboard and the plywood can be firmly bonded as a whole, and a composite flooring with little change over time can be provided.

【００１８】また合板部は全体としての板反りは、木裏
側を凸湾曲面とし、中質繊維板の関係からも、複合フロ
ーリングは全体として中質繊維板が縮小して反対に裏面
側を僅かに凸湾曲面にさせる作用があって表面側の水平
面を維持するか、僅かに凸湾曲面に変形し、実用上問題
がなく、良好なフローリング面を長期に維持するのであ
る。Further, the plywood portion has a whole board warp with a convexly curved surface on the back side of the wood, and also from the relation of the medium fiberboard, the composite flooring has a small medium fiberboard as a whole and conversely has a slight rear surface side. This has the effect of providing a convex curved surface to maintain a horizontal surface on the surface side, or slightly deforms to a convex curved surface, and has no practical problem and maintains a good flooring surface for a long period of time.

【００１９】また従来、板反りをなくす目的で常温硬化
型の接着剤を使用していたから、その硬化に時間がかか
り能率が悪く、また接着についても経時変化による板反
りが大きく問題になっていた。しかるにこの発明による
と、中質繊維板と合板部とに熱硬化型の接着剤を塗布し
て積層し、これを加熱プレスして接着するから、短時間
で硬化でき、作業時間を短縮し、著しく生産性を上げる
ことができる。そしてまたこの加熱プレス温度、時間を
設定して製品の含水率も管理でき、経時変化の少ないも
のにすることができる。Conventionally, a cold-setting adhesive has been used for the purpose of eliminating the warpage of the sheet, so that it takes a long time to cure the adhesive, and the efficiency is poor. However, according to the present invention, a thermosetting adhesive is applied to the medium fiber board and the plywood portion and laminated, and the resulting material is hot-pressed and bonded, so that it can be cured in a short time, shortening the working time, Productivity can be significantly increased. Further, by setting the heating press temperature and time, the moisture content of the product can also be controlled, and the change with time can be reduced.

【００２０】よって、緻密さと平滑さの高精度な均質性
と、木材繊維の特質を継受して対磨耗性、遮音性、断熱
性、耐寒性等の高機能を具える中質繊維板を表層に、針
葉樹もしくは広葉樹の木材繊維そのままの合板部の優れ
た特性を発揮し、板反り等の変形がない耐久性のある複
合フローリングを提供できるのである。[0020] Therefore, a medium-sized fiberboard having a high-precision homogeneity of denseness and smoothness and high-performance properties such as abrasion resistance, sound insulation, heat insulation and cold resistance by inheriting the characteristics of wood fiber is used as a surface layer. In addition, it is possible to provide a durable composite flooring which exhibits excellent characteristics of a plywood portion of a softwood or hardwood wood fiber as it is and which is free from deformation such as warpage.

【図面の簡単な説明】[Brief description of the drawings]

【図１】この発明の中質繊維板を表層とする複合フロー
リングの各層を示す断面図である。FIG. 1 is a cross-sectional view showing each layer of a composite flooring having a medium fiberboard of the present invention as a surface layer.

【図２】同じく、中質繊維板とその表面を化粧する化粧
単板の構成例を示す縮小説明平面図である。FIG. 2 is also a reduced explanatory plan view showing a configuration example of a medium fiber board and a decorative veneer for decorating the surface thereof.

【図３】同じく、合板部を構成する単板と、その単板の
繊維方向を示す縮小説明平面図である。FIG. 3 is also a reduced plan view showing a veneer constituting a plywood part and a fiber direction of the veneer.

【図４】合板部を構成する各単板の木裏側を中質繊維板
に向けて積層した第１の実施例を示す断面図である。FIG. 4 is a cross-sectional view showing a first embodiment in which the back side of each veneer constituting the plywood portion is laminated toward a medium fiberboard.

【図５】同じく、その第１の実施例の接着順序を示す側
面図である。FIG. 5 is a side view showing the bonding order of the first embodiment.

【図６】同じく、合板部の積層段数を示す第２の実施例
の側面図である。FIG. 6 is a side view of the second embodiment showing the number of layers of the plywood portion.

【図７】同じく、合板部の積層段数を示す第３の実施例
の側面図である。FIG. 7 is a side view of the third embodiment showing the number of layers of the plywood portion.

【符号の説明】[Explanation of symbols]

１ 複合フローリング ２ 化粧単板 ３ 中質繊維板 ４ 針葉樹単板 ５ 針葉樹単板 ６ 針葉樹単板 ７ 針葉樹単板 ８ 針葉樹単板 ９ａ 合板部 ９ｂ 合板部 ９ｃ 合板部 DESCRIPTION OF SYMBOLS 1 Composite flooring 2 Decorative veneer 3 Medium fiber board 4 Softwood veneer 5 Softwood veneer 6 Softwood veneer 7 Softwood veneer 8 Softwood veneer 9a Plywood part 9b Plywood part 9c Plywood part

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 中質繊維板を表層とした、合板（針葉樹
と広葉樹の複合含む）との複合板を設け、その小口面に
雄ざね、雌ざね等を加工した中質繊維板を表層とする複
合フローリングにおいて、針葉樹もしくは広葉樹から設
ける単板を互いにその繊維方向を直交方向に組み合せて
積層されると共に、その積層される単板の少なくとも２
／３以上が、各木裏側を中質繊維板に向って積層される
ことを特徴とする中質繊維板を表層とする複合フローリ
ング。1. A composite plate of a plywood (including a composite of softwood and hardwood) having a medium fiberboard as a surface layer is provided, and a medium fiberboard obtained by processing male and female knurls on a small surface thereof is used as a surface layer. In a composite flooring, veneers provided from coniferous or hardwood are laminated with their fiber directions combined in a direction orthogonal to each other, and at least two of the laminated veneers are laminated.
A composite flooring having a medium fiberboard as a surface layer, wherein at least / 3 of the trees are laminated with the back side of each tree facing the medium fiberboard. 【請求項２】 中質繊維板を表層に、針葉樹もしくは広
葉樹から設ける単板を、その繊維方向を直交方向に組み
合せて積層すると共に、その積層する単板の少なくとも
２／３以上を、各木裏側を中質繊維板に向って積層した
ことを特徴とする中質繊維板を表層とする複合フローリ
ングの製造方法。2. A single veneer made of softwood or hardwood having a medium fiberboard as a surface layer is laminated by combining fiber directions in orthogonal directions, and at least 2/3 or more of the veneers to be laminated are attached to each tree. A method for producing a composite flooring having a medium fiber board as a surface layer, wherein the back side is laminated toward the medium fiber board. 【請求項３】 中質繊維板と合板部を熱硬化性接着剤に
より製品の含水率管理をなして接着する請求項２記載の
中質繊維板を表層とする複合フローリングの製造方法。3. The method for producing a composite flooring having a medium fiber board as a surface layer according to claim 2, wherein the medium fiber board and the plywood portion are bonded by a thermosetting adhesive while controlling the moisture content of the product.
JP29947996A 1996-10-23 1996-10-23 Composite flooring with medium fiberboard as surface layer and method for producing the same Expired - Fee Related JP3909897B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29947996A JP3909897B2 (en) 1996-10-23 1996-10-23 Composite flooring with medium fiberboard as surface layer and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29947996A JP3909897B2 (en) 1996-10-23 1996-10-23 Composite flooring with medium fiberboard as surface layer and method for producing the same

Publications (2)

Publication Number Publication Date
JPH10121706A true JPH10121706A (en) 1998-05-12
JP3909897B2 JP3909897B2 (en) 2007-04-25

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* Cited by examiner, † Cited by third party
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FI129218B (en) 2016-11-22 2021-09-30 Metsaeliitto Osuuskunta Coated multi-ply wood panel and method of producing a core board

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