JP2003314037A - Floor material - Google Patents

Floor material

Info

Publication number
JP2003314037A
JP2003314037A JP2002121418A JP2002121418A JP2003314037A JP 2003314037 A JP2003314037 A JP 2003314037A JP 2002121418 A JP2002121418 A JP 2002121418A JP 2002121418 A JP2002121418 A JP 2002121418A JP 2003314037 A JP2003314037 A JP 2003314037A
Authority
JP
Japan
Prior art keywords
mdf
resin plate
hard resin
veneer
composite floor
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.)
Withdrawn
Application number
JP2002121418A
Other languages
Japanese (ja)
Inventor
Sunao Furuichi
直 古市
Hisao Sato
久夫 佐藤
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2002121418A priority Critical patent/JP2003314037A/en
Publication of JP2003314037A publication Critical patent/JP2003314037A/en
Withdrawn legal-status Critical Current

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  • Floor Finish (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor material restraining occurrence of the extension- contraction and a warp by moisture and heat, and superior in caster resistance and recess resistance. <P>SOLUTION: A composite floor base material A is constituted by laminating a hard resin plate 3 and MDF 4 in this order on plywood 2, and the floor material 1 is formed by laminating a veneer 5 on the composite floor base material A. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、建物の床面施工に
用いられる床材に関するものである。 【0002】 【従来の技術】近年は生活様式の変化により、床材には
高い耐キャスター性、耐凹み性、さらに耐水性が求めら
れているが、従来は床基材として、水分に強い床材を得
るために樹脂板を使用したり、硬度を高めるためにMD
F(中密度繊維板)を使用することが一般的である。ま
た床基材の上に薄い湿式単板をホットプレスにて接着す
ることが一般的に行なわれている。 【0003】 【発明が解決しようとする課題】ところが、床基材に樹
脂板を使用する場合、樹脂板の上に薄い湿式単板をホッ
トプレスにて接着しようとすると、樹脂板が水分を吸わ
ないために接着することができなくなるという問題があ
る。また、熱による樹脂板の伸びが大きく、膨れ、変
形、反りが大きくなるという問題もある。 【0004】他方、床基材にMDFを使用する場合は、
MDFの表面に薄い湿式単板をホットプレスにて接着で
きるが、その反面、MDFのような木質基材は水分によ
る伸縮が発生し、水分による膨れ、変形、反りが大きく
なるという問題がある。 【0005】本発明は、上記の従来例の問題点に鑑みて
発明したものであって、その目的とするところは、水分
や熱による伸縮や反り等の発生を抑制できると共に、耐
キャスター性及び耐凹み性に優れた床材を提供すること
にある。 【0006】 【課題を解決するための手段】上記課題を解決するため
に本発明にあっては、合板2上に硬質樹脂板3とMDF
4とをこの順に積層して複合床基材Aを構成し、該複合
床基材A上に突き板5を積層したことを特徴としてお
り、このように構成することで、合板2と硬質樹脂板3
とMDF4との3種類の異種材料を複合した複合床基材
Aは、木質基材の場合と比較して、硬度が高まり、耐キ
ャスター性及び耐凹み性に優れ、尚且つ、水分、熱によ
る伸縮や反りの発生を抑制できる床材1が得られるよう
になる。さらに硬質樹脂板3の存在によって、床材1全
体の総厚を薄くせずに、コストの高いMDF4の厚さを
薄くでき、コストダウンを図ることができる。 【0007】 【発明の実施の形態】以下、本発明を添付図面に示す実
施形態に基づいて説明する。 【0008】本実施形態の床材1は、図1に示すよう
に、合板2上に硬質樹脂板3とMDF(中密度繊維板)
4とをこの順に積層して複合床基材Aを構成し、該複合
床基材A上に突き板5を積層して構成されている。な
お、合板2は硬質樹脂板3の熱による伸縮を抑制する働
きをし、その厚さは例えば5〜6mm以上とされる。ま
た表面化粧材としての突き板5は、薄い湿式単板(或い
は乾式単板でもよい)が使用され、その厚さは例えば
0.25〜0.3mm程度とされる。 【0009】上記硬質樹脂板3は、例えばPPが使用さ
れる。なお硬質樹脂板3中には、PE、又はWPB等も
含まれる。硬質樹脂板3の厚さは例えば1.0〜2.0
mm程度とされる。この硬質樹脂板3はMDF4の水に
弱い欠点を補う働きをする。 【0010】上記MDF4は例えば厚さ0.6〜0.7
mmに裁断したものが使用される。このMDF4は硬度
が高く、且つその表面は平坦面とされ、床材1の耐キャ
スター性、耐凹み性を高めることができ、これにより突
き板5の表面性状に微細な切れ目や裂け目を生じさせる
といった悪影響を与えることがないものである。 【0011】上記複合床基材Aを形成するにあたって
は、合板2と硬質樹脂板3とMDF4の相互間に、水性
ビニルウレタン等の接着剤を塗布して、コールドプレス
にて圧締して接着する方法が挙げられる。そして、得ら
れた複合床基材A上に薄い湿式単板(突き板5)をホッ
トプレスにて接着する。このとき熱により蒸発した水分
がMDF4に吸収されることになり、突き板5とMDF
4との接着が可能となる。最後に、仕上げ加工、塗装等
を行なうことによって本発明の床材1が完成する。 【0012】しかして、合板2と硬質樹脂板3とMDF
4との3種類の異種材料を複合した複合床基材Aを床基
材として使用することで、複合床基材Aの表層側がMD
F4と硬質樹脂板3との複合層となり、木質基材の場合
と比較して、複合床基材Aの硬度が高まり、耐キャスタ
ー性、耐凹み性を保つことができる。つまりMDF4は
薄くしすぎるとその性能(耐キャスター性、耐凹み性)
が低下するという問題があり、またMDF4は水に対し
て弱いという問題があるが、MDF4の下に硬質樹脂板
3を積層することで、かかる問題を一挙に解決でき、こ
の結果、歩行性に優れ、同時に荷重に対する凹みを低減
できる床材1を得ることができるものである。しかもM
DF4を複合床基材Aの最上面に設けることで、薄い湿
式単板をホットプレスにて接着することが可能となる。
さらに、水分よる伸縮が大きいMDF4の下面に水分に
よる伸縮が小さい硬質樹脂板3を接着することで、MD
F4の水分による伸縮や反りの発生を抑制できる。さら
に、熱による伸縮が大きい硬質樹脂板3の上下面に熱に
よる伸縮が小さいMDF4及び合板2をそれぞれ接着す
ることで、熱による伸縮や反りの発生を抑制できる結
果、表面硬度や平滑性、温湿度による寸法安定性が損な
われることがない商品価値の高い床材1を得ることがで
きる。そのうえ高コストのMDF4と低コストの硬質樹
脂板3とを複合させることで、厚みの厚い複合床基材A
を安価に作成できるようになる。つまり、床材1全体の
総厚を薄くせずにMDF4の厚さを薄くできる結果、コ
スト面できわめて有利となる。 【0013】 【発明の効果】上述のように請求項1記載の発明にあっ
ては、合板上に硬質樹脂板とMDFとをこの順に積層し
て複合床基材を構成し、該複合床基材上に突き板を積層
したので、合板と硬質樹脂板とMDFとの3種類の異種
材料を複合した複合床基材は、木質基材の場合と比較し
て、硬度が高まり、耐キャスター性及び耐凹み性に優れ
た床材を得ることができる。しかもMDF上に例えば薄
い湿式単板等の突き板をホットプレスにて接着すること
が可能となる。さらに、水分よる伸縮が大きいMDFの
下面に硬質樹脂板を接着することで、MDFの水分によ
る伸縮や反りの発生を抑制でき、且つ、熱による伸縮が
大きい硬質樹脂板の上下面にMDF及び合板をそれぞれ
接着することで、床材の熱による伸縮や反りの発生を抑
制できる。そのうえ硬質樹脂板の存在によって、床材全
体の総厚を薄くせずに、コストの高いMDFの厚さを薄
くでき、コスト面でも有利となる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor material used for flooring a building. 2. Description of the Related Art In recent years, floor materials have been required to have high caster resistance, dent resistance, and water resistance due to changes in lifestyles. Use a resin plate to obtain the material, MD to increase the hardness
It is common to use F (medium density fiberboard). Also, it is common practice to bond a thin wet veneer onto a floor substrate by hot pressing. [0003] However, when a resin plate is used as a floor base material, if a thin wet veneer is bonded onto the resin plate by hot pressing, the resin plate absorbs moisture. There is a problem that it cannot be bonded because it is not present. In addition, there is a problem that the resin plate is greatly elongated by heat, and swelling, deformation, and warpage are increased. On the other hand, when MDF is used for a floor substrate,
Although a thin wet veneer can be bonded to the surface of the MDF by hot pressing, there is a problem in that a wood base material such as MDF expands and contracts due to moisture, and swelling, deformation and warping due to moisture increase. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to suppress the occurrence of expansion and contraction and warpage due to moisture and heat, and to improve caster resistance and An object of the present invention is to provide a flooring material having excellent dent resistance. According to the present invention, a hard resin plate 3 and a MDF are provided on a plywood 2 to solve the above-mentioned problems.
4 are laminated in this order to form a composite floor substrate A, and the veneer 5 is laminated on the composite floor substrate A. With this configuration, the plywood 2 and the hard resin Board 3
The composite floor substrate A in which three types of different materials, namely, and MDF4 are composited, has higher hardness, superior caster resistance and dent resistance as compared with the case of a wooden substrate, and furthermore, due to moisture and heat. The floor material 1 that can suppress the occurrence of expansion and contraction and warpage can be obtained. Further, due to the presence of the hard resin plate 3, the thickness of the high-cost MDF 4 can be reduced without reducing the total thickness of the flooring 1 as a whole, and the cost can be reduced. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the accompanying drawings. As shown in FIG. 1, a floor material 1 according to this embodiment has a hard resin plate 3 and a MDF (medium density fiberboard) on a plywood 2.
4 are laminated in this order to form a composite floor substrate A, and a veneer 5 is laminated on the composite floor substrate A. The plywood 2 has a function of suppressing the expansion and contraction of the hard resin plate 3 due to heat, and has a thickness of, for example, 5 to 6 mm or more. As the veneer 5 as a surface decorative material, a thin wet veneer (or a dry veneer) may be used, and its thickness is, for example, about 0.25 to 0.3 mm. For the hard resin plate 3, for example, PP is used. The hard resin plate 3 also includes PE, WPB, and the like. The thickness of the hard resin plate 3 is, for example, 1.0 to 2.0.
mm. The hard resin plate 3 functions to compensate for the weakness of the MDF 4 against water. The MDF 4 has a thickness of, for example, 0.6 to 0.7.
The one cut to mm is used. The MDF 4 has a high hardness and a flat surface, so that the caster resistance and the dent resistance of the flooring material 1 can be improved, thereby causing fine cuts and tears in the surface properties of the veneer plate 5. It does not have such an adverse effect. In forming the composite floor base material A, an adhesive such as aqueous vinyl urethane is applied between the plywood 2, the hard resin plate 3, and the MDF 4, and is bonded by pressing with a cold press. Method. Then, a thin wet veneer (veneer plate 5) is bonded onto the obtained composite floor substrate A by hot pressing. At this time, the moisture evaporated by the heat is absorbed by the MDF 4, and the veneer 5 and the MDF 4
4 becomes possible. Finally, the flooring 1 of the present invention is completed by performing finishing, painting, and the like. The plywood 2, the hard resin plate 3, and the MDF
By using as a floor substrate a composite floor substrate A in which three types of different materials of No. 4 and 3 are composited, the surface layer side of the composite floor substrate A is MD.
It becomes a composite layer of F4 and the hard resin plate 3, and the hardness of the composite floor substrate A is increased as compared with the case of a wooden substrate, so that caster resistance and dent resistance can be maintained. In other words, if MDF4 is too thin, its performance (caster resistance, dent resistance)
There is a problem that the MDF 4 is weak against water. However, by laminating the hard resin plate 3 under the MDF 4, such a problem can be solved at once, and as a result, the walking property is reduced. It is possible to obtain the flooring material 1 which is excellent and at the same time can reduce the dent against the load. And M
By providing DF4 on the uppermost surface of the composite floor substrate A, a thin wet veneer can be bonded by hot pressing.
Further, by bonding the hard resin plate 3 with small expansion and contraction due to moisture to the lower surface of the MDF 4 with large expansion and contraction due to moisture,
The generation of expansion and contraction and warpage of F4 due to moisture can be suppressed. Furthermore, by adhering the MDF 4 and the plywood 2, which have small thermal expansion and contraction, to the upper and lower surfaces of the hard resin plate 3 which has large thermal expansion and contraction, respectively, the occurrence of thermal expansion and contraction and warpage can be suppressed. It is possible to obtain a flooring material 1 having a high commercial value without losing dimensional stability due to humidity. In addition, by combining the high-cost MDF 4 and the low-cost hard resin plate 3, a thick composite floor substrate A is formed.
Can be created at low cost. That is, the thickness of the MDF 4 can be reduced without reducing the total thickness of the entire flooring 1, which is extremely advantageous in terms of cost. As described above, according to the first aspect of the present invention, a composite floor substrate is formed by laminating a hard resin plate and an MDF on a plywood in this order. Since the veneer is laminated on the timber, the composite floor substrate, which is a composite of three different materials of plywood, a hard resin plate, and MDF, has higher hardness and caster resistance than the case of a wooden substrate. In addition, a floor material excellent in dent resistance can be obtained. In addition, it is possible to bond a veneer such as a thin wet veneer to the MDF by hot pressing. Further, by adhering the hard resin plate to the lower surface of the MDF which has a large expansion and contraction due to moisture, it is possible to suppress the occurrence of expansion and contraction and warpage due to the moisture of the MDF, and to attach the MDF and plywood to the upper and lower surfaces of the hard resin plate which has a large expansion and contraction due to heat By adhering to each other, the occurrence of expansion and contraction and warpage of the floor material due to heat can be suppressed. In addition, due to the presence of the hard resin plate, the thickness of the expensive MDF can be reduced without reducing the total thickness of the floor material as a whole, which is advantageous in terms of cost.

【図面の簡単な説明】 【図1】本発明の実施形態の一例を示す断面図である。 【符号の説明】 1 床材 2 合板 3 硬質樹脂板 4 MDF 5 突き板 A 複合床基材[Brief description of the drawings] FIG. 1 is a cross-sectional view illustrating an example of an embodiment of the present invention. [Explanation of symbols] 1 flooring 2 plywood 3 Hard resin plate 4 MDF 5 Veneer A Composite floor substrate

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 2E220 AA25 AA26 BA01 BB03 EA02 GA22X GA25X GB32X GB44X GB46X    ────────────────────────────────────────────────── ─── Continuation of front page    F term (reference) 2E220 AA25 AA26 BA01 BB03 EA02                       GA22X GA25X GB32X GB44X                       GB46X

Claims (1)

【特許請求の範囲】 【請求項1】 合板上に硬質樹脂板とMDFとをこの順
に積層して複合床基材を構成し、該複合床基材上に突き
板を積層したことを特徴とする床材。
Claims 1. A composite floor substrate is formed by laminating a hard resin plate and an MDF on a plywood in this order, and a veneer is laminated on the composite floor substrate. Flooring.
JP2002121418A 2002-04-23 2002-04-23 Floor material Withdrawn JP2003314037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002121418A JP2003314037A (en) 2002-04-23 2002-04-23 Floor material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002121418A JP2003314037A (en) 2002-04-23 2002-04-23 Floor material

Publications (1)

Publication Number Publication Date
JP2003314037A true JP2003314037A (en) 2003-11-06

Family

ID=29537358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002121418A Withdrawn JP2003314037A (en) 2002-04-23 2002-04-23 Floor material

Country Status (1)

Country Link
JP (1) JP2003314037A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009046909A (en) * 2007-08-21 2009-03-05 Panasonic Electric Works Co Ltd Composite flooring material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009046909A (en) * 2007-08-21 2009-03-05 Panasonic Electric Works Co Ltd Composite flooring material

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A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20050705