JPH08226221A - Wooden decorative floor material - Google Patents
Wooden decorative floor materialInfo
- Publication number
- JPH08226221A JPH08226221A JP3403495A JP3403495A JPH08226221A JP H08226221 A JPH08226221 A JP H08226221A JP 3403495 A JP3403495 A JP 3403495A JP 3403495 A JP3403495 A JP 3403495A JP H08226221 A JPH08226221 A JP H08226221A
- Authority
- JP
- Japan
- Prior art keywords
- moisture
- paper
- composite sheet
- layer
- veneer
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 63
- 239000011120 plywood Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 5
- 238000009408 flooring Methods 0.000 claims description 23
- 239000002023 wood Substances 0.000 claims description 17
- 229920003002 synthetic resin Polymers 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 11
- 229920001169 thermoplastic Polymers 0.000 claims description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 36
- 239000000123 paper Substances 0.000 description 26
- 239000000853 adhesive Substances 0.000 description 18
- 238000012360 testing method Methods 0.000 description 18
- 230000001070 adhesive effect Effects 0.000 description 17
- 239000000758 substrate Substances 0.000 description 16
- 239000003973 paint Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 241000208818 Helianthus Species 0.000 description 5
- 235000003222 Helianthus annuus Nutrition 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 206010042496 Sunburn Diseases 0.000 description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000032798 delamination Effects 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- JZLWSRCQCPAUDP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;urea Chemical compound NC(N)=O.NC1=NC(N)=NC(N)=N1 JZLWSRCQCPAUDP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000005002 finish coating Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002345 surface coating layer Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Landscapes
- Floor Finish (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は木質化粧床材、特に合
板を基板とし、表面にツキ板による化粧単板が貼着され
た木質化粧床材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden decorative flooring material, and more particularly to a wooden decorative flooring material having a plywood substrate as a substrate and a decorative veneer made of a wood veneer attached to the surface.
【０００２】[0002]
【従来の技術】木質化粧床材として最も一般的には、合
板基材の表面に木質化粧単板を貼着し、表面を塗層仕上
げしたものが広く使用されている。このような床材は、
通常、合板基材の表層単板の繊維方向と表面の木質化粧
単板の繊維方向とが平行したものとなっている。2. Description of the Related Art Most commonly used wood decorative flooring materials are those in which a wood decorative veneer is attached to the surface of a plywood base material and the surface is coated to finish. Such flooring is
Usually, the fiber direction of the surface layer veneer of the plywood base material is parallel to the fiber direction of the surface wood decorative veneer.
【０００３】ところが、この種の木質化粧床材において
は、近時住宅で使用される各種暖房機器の普及に伴い、
床材表面に発生するヒワレの問題が大きくクローズアッ
プされてきている。殊に、床置き式温風ヒーターや電気
カーペット（ホットカーペット）が使用され、あるいは
床暖房装置が使用されるような場合、床材に直接熱が当
るため、床材の表面にヒワレが益々発生し易いものとな
っている。However, in this type of wood decorative flooring material, along with the widespread use of various heating devices used in recent homes,
The problem of sunburns on the surface of floor materials has been greatly highlighted. Especially when a floor-standing hot air heater or electric carpet (hot carpet) is used, or a floor heating device is used, heat is directly applied to the floor material, which causes more and more cracks on the surface of the floor material. It is easy to do.
【０００４】このようなヒワレの種類と発生原因は多種
多様であり、単に表面の化粧単板のみに微視的なものと
して発生する程度のヒワレはさして大きな問題にならな
いが、合板基材の表層単板に潜在する裏割れに起因し
て、乾燥収縮による該裏割れの開口力が、表面の化粧単
板に影響してそれに割裂を起発する種類の割れは、その
亀裂が大きく、しかも割れの端部が表面に盛り上がりを
示すものとなるため、外観的にも見苦しく美観を著しく
損なうという問題がある。There are various kinds and causes of generation of such a crease, and a crease which is microscopically generated only on the decorative veneer on the surface is not a serious problem, but the surface layer of the plywood base material. Due to the back crack latent in the veneer, the opening force of the back crack due to drying shrinkage affects the decorative veneer on the surface and causes a split crack in the crack. Since the end portion has a bulge on the surface, there is a problem in that the appearance is unsightly and the aesthetic appearance is significantly impaired.
【０００５】従来、このような大きなヒワレの防止対策
として、合板基材と表面の木質化粧単板との間に、ヒワ
レ防止用の紙を介挿して貼合わせることが一部において
行われている。この方法は、普通の室内環境下での使用
においては有効である。Conventionally, as a measure for preventing such large sunburns, it has been partially performed to insert a sunburn preventing paper between the plywood base material and the wood-made decorative veneer on the surface to bond them. . This method is effective when used in a normal indoor environment.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、温風ヒ
ーターの温風が直接当るような場合、あるいは電気カー
ペットが直置き使用されてその熱が直接床材に伝わるよ
うな場合等の苛酷な使用条件下においては、なおヒワレ
の防止効果において不十分なものであった。というの
は、例えば電気カーペットを冬季中毎日通電したとして
も、それが４〜８時間／日程度であればさほど問題を生
じないが、スイッチを切り忘れ、そのまゝ長時間使用し
ていることが繰返されると、時として大きなヒワレが発
生することがあった。However, when the hot air from the hot air heater is directly applied, or when the electric carpet is used by being placed directly and the heat is directly transmitted to the floor material, the severe operating conditions are encountered. Below, the effect of preventing sunburn was still insufficient. For example, even if the electric carpet is energized every day during the winter, if it is about 4 to 8 hours / day, there will be no problem, but if you forget to turn off the switch and use it for a long time. When it was repeated, sometimes a big wrinkle occurred.
【０００７】本発明者らは、この原因について更に種々
検討と研究を行った。しかるところ、外観を損ねるよう
な大きなヒワレの発生は、床材の表面に直接熱が作用す
るとき、あるいは床材の下面から熱が伝わるときのいず
れの場合にあっても、主として床材の表面側からの放湿
が盛んなものとなることに起因して、合板基板の表層単
板の収縮と表面化粧単板の収縮とが同時に起こり、基板
の表層単板の裏割れを拡大する開口力がヒワレ防止用の
紙の抗力に打ち勝って、表面の化粧単板にまで及ぶこと
に主な原因があることを突きとめるに至った。The present inventors further conducted various studies and studies on this cause. However, the occurrence of large creases that damage the appearance is mainly due to the fact that heat is applied directly to the surface of the flooring material or when heat is transferred from the bottom surface of the flooring material. Due to the active moisture release from the side, the contraction of the surface veneer of the plywood substrate and the contraction of the surface decorative veneer occur at the same time, and the opening force that expands the back cracking of the surface veneer of the substrate. Overcame the drag of the anti-wrinkle paper, and came to discover that the main cause is that it extends to the decorative veneer on the surface.
【０００８】[0008]
【課題を解決するための手段】この発明は、上記のよう
な知見に基づき、合板基板と化粧単板との間での湿気の
移行を遮断することをもって、熱的に苛酷な条件下で使
用されるような場合においても、なおヒワレの発生を一
層効果的に抑制しうるものとした木質化粧床材を提供す
ることに成功をおさめ得たものである。The present invention is based on the above-mentioned findings and is used under heat and harsh conditions by blocking the migration of moisture between a plywood substrate and a decorative veneer. Even in such a case, the present invention has succeeded in providing a wood decorative flooring material that can more effectively suppress the occurrence of sunflowers.
【０００９】しかして、この発明は、合板基材と表面の
木質化粧単板との間に、熱可塑性合成樹脂層を中間にし
てその両面に紙層が積層された３層構成による防湿性複
合シートが介在され前記基材及び化粧単板と接合一体化
されてなることを特徴とするヒワレ防止木質化粧床材を
要旨とするものである。According to the present invention, however, a moisture-proof composite having a three-layer structure in which a paper layer is laminated on both surfaces of a plywood base material and a wood decorative veneer on the surface with a thermoplastic synthetic resin layer as an intermediate layer. The present invention is directed to a sunscreen-preventing wooden decorative flooring material, characterized in that a sheet is interposed and joined and integrated with the base material and the decorative veneer.
【００１０】この発明の好適な実施態様において、上記
防湿性複合シートは、中間の熱可塑性樹脂層が厚さ１０
〜１００μｍであり、両面の紙層が坪量２０〜７５ｇ／
ｍ2であるものが用いられる。In a preferred embodiment of the present invention, the moisture-proof composite sheet has an intermediate thermoplastic resin layer having a thickness of 10
˜100 μm, and paper layers on both sides have a basis weight of 20 to 75 g /
What is m 2 is used.
【００１１】一方、該防湿性複合シートにおける合成樹
脂層として、ポリエチレンフィルムを用いることが推奨
される。On the other hand, it is recommended to use a polyethylene film as the synthetic resin layer in the moisture-proof composite sheet.
【００１２】以下、この発明の構成について更に図面の
参照のもとに詳しく説明する。The structure of the present invention will be described in detail below with reference to the drawings.
【００１３】基材（１）は合板からなるものである。該
合板は、従来汎用のものを使用され、何ら特別なもので
ある必要はない。合板基板（１）の厚さは、床材の施工
下地により適宜選択される。たとえば根太組上に施工さ
れる場合には、一般に厚さ１１mm以上のものが用いら
れ、合板、パーティクルボード、床暖房用ハードパネル
等の平板下地上に施工される場合には、薄物で良いが、
床材端面に接合部（１a）（１b ）の加工を施す必要性
から、一般的には５mm以上の厚さのものが使用される。The base material (1) is made of plywood. The plywood used heretofore is a general-purpose one, and does not need to be special. The thickness of the plywood substrate (1) is appropriately selected depending on the construction base of the floor material. For example, when it is constructed on a joist set, it generally has a thickness of 11 mm or more, and when it is constructed on a flat plate substrate such as plywood, particle board, and floor heating hard panel, it may be thin. ,
Since it is necessary to process the joints (1a) and (1b) on the end surface of the floor material, those having a thickness of 5 mm or more are generally used.
【００１４】なお、必要に応じて合板基材（１）の裏面
には、表面側との伸縮のバランスをとる目的で、あるい
は裏面側からの吸水、吸湿を防ぐ目的で、紙、不織布、
あるいは後述する防湿性複合シートと同様の材料等によ
る裏貼りを施すものとしても良い。If necessary, the back surface of the plywood base material (1) may be made of paper, non-woven fabric, for the purpose of balancing expansion and contraction with the front surface side, or for the purpose of preventing water absorption and moisture absorption from the back surface side.
Alternatively, it may be backed with a material similar to that of the moisture-proof composite sheet described later.
【００１５】床材の表面に用いられる木質化粧単板
（２）は、天然木からなるもの、それを素材にして寄木
模様に組合わせたもの、あるいは天然木単板を素材とし
て木理になるように積層したもの等から、０．１５〜
０．４５mm程度の厚さに切削したツキ板が用いられる。
その厚さの大小は、ヒワレの発生の問題に対してほとん
ど何の影響をも及ぼさない。The wood decorative veneer (2) used on the surface of the flooring is made of natural wood, combined with it as a material in a parquet pattern, or made of natural wood veneer as a grain. 0.15 to 5
A wood board cut to a thickness of about 0.45 mm is used.
The size of the thickness has almost no effect on the problem of sunflower development.
【００１６】上記基材（１）と化粧単板（２）との間に
介挿する防湿性複合シート（３）は、図２に示すように
熱可塑性合成樹脂層（４）を中間層としてその両面に紙
層（５）（５）を積層した３層構成によるものである。The moisture-proof composite sheet (3) interposed between the base material (1) and the decorative veneer (2) has a thermoplastic synthetic resin layer (4) as an intermediate layer, as shown in FIG. This is a three-layer structure in which paper layers (5) and (5) are laminated on both sides.
【００１７】上記熱可塑性合成樹脂層（４）は、防湿性
を与え、湿気、水分の透通を抑制するものであり、その
樹脂の種類は特に限定されるものではないが、床材の表
面に熱が加わったときに軟化して合板基材（１）と表面
の化粧単板（２）との間に緩衝作用を発現するものであ
ることが望ましいことから、熱可塑性合成樹脂を用いる
べきものとする。その樹脂の種類は特に限定されない。
具体的に例示すれば、例えばポリエチレン、ポリプロピ
レン、エチレン酢酸ビニル共重合体系、ポリ塩化ビニル
系、塩化ビニルデン系等の使用が可能である。なかで
も、耐寒性に優れること、また接着性を阻害する要因と
なるおそれのある可塑剤を含まないこと、更には価格等
の点から、最も好ましくはポリエチレンの使用が有利で
ある。The above-mentioned thermoplastic synthetic resin layer (4) imparts moisture resistance and suppresses permeation of moisture and water. The kind of the resin is not particularly limited, but the surface of the floor material is not limited. It is desirable that a thermoplastic synthetic resin should be used because it is desirable that it softens when heat is applied to it and exerts a buffering action between the plywood substrate (1) and the decorative veneer (2) on the surface. I shall. The type of resin is not particularly limited.
Specifically, for example, polyethylene, polypropylene, ethylene vinyl acetate copolymer system, polyvinyl chloride type, vinylden chloride type, etc. can be used. Among them, polyethylene is most preferably used from the viewpoints of excellent cold resistance, containing no plasticizer which may be a factor that hinders adhesiveness, and cost, etc.
【００１８】合成樹脂層（４）の厚さは、１０〜１００
μｍ、好ましくは１５〜５０μｍである。１０μｍ未満
では、フィルム中に不可避的に存在する多くのピンボー
ルによって防湿性の確保が不十分なものとなるおそれが
あると共に、紙層（５）との接着性が低下し、層間剥離
を生じ易いものとなって３層シートとしての安定性が悪
くなる。一方、１００μｍをこえるような厚いものとす
ることは、防湿機能の点で飽和し、経済的でない。The thickness of the synthetic resin layer (4) is 10-100.
μm, preferably 15 to 50 μm. If the thickness is less than 10 μm, a large amount of pinballs inevitably present in the film may cause insufficient moisture resistance, and the adhesiveness to the paper layer (5) may be reduced, resulting in delamination. It becomes easy and the stability as a three-layer sheet deteriorates. On the other hand, thicker than 100 μm is not economical because it saturates in terms of moisture-proof function.
【００１９】紙層（５）を構成する紙の種類は特に限定
されるものではなく、例えばクラフト紙、再生紙、古紙
含有紙、純白ロール紙、印刷用紙等を任意に選択使用し
うる。なかでもクラフト紙の使用が最も一般的である。
また両面の紙層（５）（５）は、同種同質のものであっ
ても、相互に異種異質のものであっても良い。The type of paper constituting the paper layer (5) is not particularly limited, and for example, kraft paper, recycled paper, waste paper containing paper, pure white roll paper, printing paper and the like can be arbitrarily selected and used. Of these, kraft paper is most commonly used.
Further, the paper layers (5) and (5) on both sides may be of the same kind or of the same kind, or may be of different kinds and different from each other.
【００２０】紙層（５）に用いる紙の坪量ないし厚さ
は、特に限定されないが、坪量において２０〜７５ｇ／
ｍ2 、厚さ２５〜９０μｍのものを使用すべきである。
合板基材（１）及び表面化粧単板（２）との接着のため
の接着剤の浸透性の良好なものとし、十分な接着力を確
保しつゝ紙層内での層間剥離を生じさせないものとする
こと等を考慮すると、坪量２５〜５５ｇ／ｍ2 、厚さ３
５〜８５μｍ程度のものを用いるのが好適である。The basis weight or thickness of the paper used for the paper layer (5) is not particularly limited, but the basis weight is 20 to 75 g /
m 2 and thickness of 25-90 μm should be used.
Adhesive for adhering to the plywood base material (1) and the surface decorative veneer (2) should have good penetrability and ensure sufficient adhesive force to prevent delamination within the paper layer. In consideration of the things to be considered, the basis weight is 25 to 55 g / m 2 , and the thickness is 3
It is preferable to use the one having a thickness of about 5 to 85 μm.
【００２１】防湿性複合シート（３）の製造は、中間の
合成樹脂層（２）を構成する熱可塑性合成樹脂を溶融状
態のもとにフィルム状ないしシート状に吐出させ、その
両面に紙層（５）（５）を構成する紙を重ね、脱気、圧
着、冷圧して三層一体化する溶融同時押出し法によって
容易に行うことができる。その他積層後熱圧する方法に
よって製造しても良い。The moisture-proof composite sheet (3) is manufactured by discharging the thermoplastic synthetic resin constituting the intermediate synthetic resin layer (2) in a film or sheet form in a molten state, and forming a paper layer on both sides thereof. (5) It can be easily carried out by a melt coextrusion method in which the papers constituting (5) are stacked, degassed, pressure-bonded, and cold pressed to integrate the three layers. Alternatively, it may be manufactured by a method of hot pressing after lamination.
【００２２】防湿性複合シート（３）の坪量及び厚さ
は、坪量５０ｇ／ｍ2 以上、厚さ６０μｍ以上とするこ
とが好ましい。また、引張り強さは、大きいほど好まし
いが、少なくとも２．５kg／（１５mm幅）以上の強さを
有することが必要と考えられ、好ましくは５kg／（１５
mm幅）以上の強さを有するものとするのが良い。The moisture-proof composite sheet (3) preferably has a basis weight and thickness of 50 g / m 2 or more and a thickness of 60 μm or more. Further, the larger the tensile strength, the more preferable, but it is considered that it is necessary to have a strength of at least 2.5 kg / (15 mm width), and preferably 5 kg / (15
mm width) or more.
【００２３】上記のような防湿性複合シート（３）を合
板基材（１）と表面化粧単板（２）との間に介在せしめ
ることにより、暖房器具等によって床材が加熱された場
合においても、床材の表面側からの放湿が抑制される。
特に複合シート（３）の中間層を構成する熱可塑性樹脂
層（４）による遮断作用により、合板基材（１）の表層
単板からの放湿が抑制される。故に、該合板基材（１）
の表層単板の加熱収縮が緩やかなものとなり、該単板の
有する裏割れの拡大化が防止され、ひいてはその拡大化
に伴う大きな開口力が表面の化粧単板（２）に及ぶのが
防止される。By interposing the moisture-proof composite sheet (3) as described above between the plywood base material (1) and the surface decorative veneer (2), when the floor material is heated by a heating device or the like. Also, moisture release from the surface side of the floor material is suppressed.
In particular, due to the blocking action of the thermoplastic resin layer (4) forming the intermediate layer of the composite sheet (3), moisture release from the surface layer veneer of the plywood base material (1) is suppressed. Therefore, the plywood substrate (1)
The heat shrinkage of the surface layer veneer becomes gentle, the expansion of the back crack of the veneer is prevented, and the large opening force due to the expansion is prevented from spreading to the decorative veneer (2) on the surface. To be done.
【００２４】かつ、上記熱可塑性樹脂層（４）は、加熱
によって軟化し、一種の緩衝作用を果して基板（１）の
伸縮挙動が表面化粧単板（２）に有害な影響を及ぼすの
を緩和する。この作用は同時に両面の紙層（５）（５）
によっても助長される一方、紙層（５）（５）は基板
（１）及び化粧単板（２）との接着力を保証して防湿性
複合シート（３）の剥離を防止する。特に、上層の紙層
（５）は、主として表面化粧単板（２）の動きを緩衝す
る作用を受けもち、また下層の紙層（５）は、合板基材
の表層単板の挙動を緩衝するだけでなく、抗張材として
も有用に機能して合板基材（１）の表層単板の伸縮挙動
も抑制し、その挙動の影響をそれより上の層へ及ぼし難
くする作用を果す。Further, the thermoplastic resin layer (4) is softened by heating and serves as a kind of buffering effect to alleviate the adverse effect of the expansion and contraction behavior of the substrate (1) on the decorative surface veneer (2). To do. At the same time, this action is performed on both paper layers (5) (5)
On the other hand, the paper layers (5) and (5) guarantee the adhesive force between the substrate (1) and the decorative veneer (2) and prevent the moisture-proof composite sheet (3) from peeling. In particular, the upper paper layer (5) mainly acts to buffer the movement of the surface decorative veneer (2), and the lower paper layer (5) buffers the behavior of the surface veneer of the plywood base material. Not only does it function as a tensile member, but also suppresses the expansion and contraction behavior of the surface layer veneer of the plywood base material (1), making it difficult to exert the influence of the behavior on the layers above it.
【００２５】従って、この発明に係る床材は、上記のよ
うな作用が相俟って、苛酷な加熱条件下での使用にあっ
ても、表面の化粧単板（２）に外観を損ねるような大き
なヒワレが発生するのを効果的に防止しうるものであ
る。Therefore, the flooring material according to the present invention, in combination with the above-mentioned actions, impairs the appearance of the decorative veneer (2) on the surface even when it is used under severe heating conditions. It is possible to effectively prevent the occurrence of such a large wrinkle.
【００２６】なお、この発明に係る床材の製造は、たと
えば合板基材（１）上に接着剤を介して防湿性複合シー
ト（３）を重ねて冷圧接着したのち、更にその上に接着
剤を介して表面の化粧単板（２）を重ね、ホットプレス
して基材（１）、複合シート（３）及び化粧単板（２）
を熱圧一体化することにより行うことができる。In the production of the flooring material according to the present invention, for example, a moisture-proof composite sheet (3) is laminated on a plywood base material (1) via an adhesive agent, cold-pressed and then further bonded. The decorative veneer (2) on the surface is overlaid via an agent and hot pressed to form the base material (1), the composite sheet (3) and the decorative veneer (2).
Can be integrated by heat and pressure.
【００２７】上記貼合わせに用いる接着剤は、木材用、
紙用の公知の接着剤を用いうる。層間剥離を防ぐととも
に接着安定性を得るために、浸透性の良い接着剤と造膜
性の良い接着剤を混合して用いることが好ましい。前者
の例としては尿素系、メラミン系、尿素−メラミン系、
フェノール系等の接着剤を、後者の例としてはウレタン
系、酢酸ビニル系、エチレン−酢酸ビニル共重合体系等
の接着剤を挙げることができる。The adhesive used for the above-mentioned lamination is for wood,
Known adhesives for paper can be used. In order to prevent delamination and to obtain adhesive stability, it is preferable to mix and use an adhesive having good permeability and an adhesive having good film-forming property. Examples of the former include urea series, melamine series, urea-melamine series,
Examples of the phenol-based adhesives include urethane-based adhesives, vinyl acetate-based adhesives, ethylene-vinyl acetate copolymer-based adhesives, and the like.
【００２８】床材の表面、すなわち化粧単板（２）の表
面側には、一般に仕上げ塗装が施される。この仕上げ塗
装にはアミノアルキッド系、ウレタン系等の公知の木材
用塗料の任意のものを用い得るが、塗膜に柔軟性があっ
て化粧単板自体のヒワレを防止しうる点では、ウレタン
系塗料の使用が好ましい。The surface of the floor material, that is, the surface side of the decorative veneer (2) is generally subjected to finish coating. Any of known amino alkyd-based and urethane-based paints for wood can be used for this finish coating, but urethane-based paints are flexible in that they can prevent the decorative veneer itself from getting scratched. The use of paint is preferred.
【００２９】[0029]
【実施例】基材（１）として厚さ１２mmのラワン合板を
用い、表面化粧単板（２）としてナラ材による厚さ０．
２５mmのツキ板を用いた。EXAMPLE A lauan plywood having a thickness of 12 mm was used as a base material (1), and a surface made of oak having a thickness of 0.
A 25 mm wood board was used.
【００３０】また、基板（１）と化粧単板（２）の間に
介在させる介挿材として、表１に示すＡ、Ｂの２種類の
３層シートからなる防湿性複合シート（３）及びクラフ
ト紙Ｐを用意した。A moisture-proof composite sheet (3) consisting of two types of three-layer sheets A and B shown in Table 1 is used as an interposing material interposed between the substrate (1) and the decorative veneer (2). Kraft paper P was prepared.
【００３１】[0031]
【表１】 [Table 1]
【００３２】実施例１〜４ 上記の材料を用い、合板基材上に尿素系と酢酸ビニル系
との混合接着剤を介して防湿性複合シートＡまたはＢを
冷圧接着し、更にその上に尿素メラミン系と酢酸ビニル
系との混合接着剤を介して表面の化粧単板を熱圧により
接着一体化した。ここに、実施例１では、複合シートＡ
の第１紙層（坪量５０ｇ／ｍ2 ）側を合板基材側に接着
するものとし、実施例２では複合シートＡを反転して第
２紙層（坪量３０ｇ／ｍ2 ）側を合板基材側に接着する
ものとした。そして、更に表面にウレタン系塗料、アミ
ノアルキッド系塗料で仕上げ塗料を施し、実施例１〜４
の各種化粧床材を得た。Examples 1 to 4 Using the above-mentioned materials, a moisture-proof composite sheet A or B was cold-pressure bonded onto a plywood substrate via a mixed adhesive of urea-based and vinyl acetate-based, and further thereon. The decorative veneer on the surface was bonded and integrated by heat and pressure via a mixed adhesive of urea melamine and vinyl acetate. Here, in Example 1, the composite sheet A
The first paper layer (basis weight is 50 g / m 2 ) side is adhered to the plywood substrate side, and in Example 2, the composite sheet A is inverted and the second paper layer (basis weight 30 g / m 2 ) side is attached. Adhesion was made to the plywood substrate side. Then, a finish paint is further applied to the surface with a urethane-based paint and an aminoalkyd-based paint, and Examples 1 to 4 are applied.
Various kinds of decorative flooring materials were obtained.
【００３３】比較例１ 合板基材（１）と化粧単板（２）との間に介挿材として
表１に示すクラフト紙Ｐを用いたほかは、実施例１と同
様にして比較例１の化粧床材を製作した。Comparative Example 1 Comparative Example 1 was carried out in the same manner as in Example 1 except that the kraft paper P shown in Table 1 was used as an interposing material between the plywood base material (1) and the decorative veneer (2). I made a decorative flooring.
【００３４】比較例２ 介挿材を用いることなく、合板基材上に直接尿素メラミ
ン系と酢酸ビニル系との混合接着剤を介して化粧単板を
熱圧により貼合わせたものとし、アミノアルキッド塗料
で表面塗層を施して比較例２の化粧床材を得た。COMPARATIVE EXAMPLE 2 A decorative veneer was directly laminated on a plywood base material through a mixed adhesive of urea melamine type and vinyl acetate type by hot pressing without using an interposing material. A surface coating layer was applied with a paint to obtain a decorative flooring material of Comparative Example 2.
【００３５】（耐熱性能試験）上記により得られた各種
化粧床材につき、電気カーペットの敷設使用や温風ヒー
ターの温風が当る場合の苛酷な使用条件下での性能試験
に代わるものとして、下記の寒熱くり返し試験及び
耐水試験を行った。(Heat resistance performance test) As an alternative to the performance test under severe operating conditions when laying an electric carpet or hitting warm air from a warm air heater, various decorative flooring materials obtained as described above are used. Repeated cold heat test and water resistance test were conducted.
【００３６】寒熱くり返し試験 各化粧床材を１５０×１５０mmの大きさに切断し、該切
断片の中央部に直径３mmの貫通孔をあけたものを試験片
とした。Cold Heat Repeat Test Each decorative flooring material was cut into a size of 150 × 150 mm, and a cut piece having a through hole with a diameter of 3 mm in the center was used as a test piece.
【００３７】この試験片を８０℃の恒温器中に２時間放
置した後、−２０℃の恒温器中に２時間放置する工程を
１サイクルとし、最大１０サイクルを繰返すものとし
た。そして、表面の化粧単板に合板基板の表層単板の裏
割れに起因する外観上明らかな大きなヒワレが発生した
時に試験を中止するものとして、それまでの寒熱くり返
し試験のサイクル数を調べた。This test piece was allowed to stand in an incubator at 80 ° C. for 2 hours and then left in an incubator at -20 ° C. for 2 hours, which was defined as one cycle, and a maximum of 10 cycles were repeated. Then, the number of cycles of the cold heat repetition test up to that time was examined, assuming that the test was stopped when a large visible crack was generated on the decorative veneer on the surface due to the back cracking of the surface veneer of the plywood substrate.
【００３８】その結果を表２に示す。なお、同表中サイ
クル数を１０として示したものは、１０回の試験サイク
ル後においてなお表面に大きなヒワレの発生が認められ
なかったものであることを意味する。The results are shown in Table 2. In the table, the number of cycles shown as 10 means that after the test cycle of 10 times, no large wrinkle was observed on the surface.
【００３９】耐水試験 １５０×１５０mmの２枚の切断片を裏面どおしでエポキ
シ樹脂接着剤で貼り合わせ、かつ円周側面を同じくエポ
キシ樹脂接着剤で被覆したものを試験片とした。Water resistance test Two cut pieces of 150 × 150 mm were bonded to each other with an epoxy resin adhesive on the back side, and the circumferential side surfaces were also coated with the epoxy resin adhesive to give test pieces.
【００４０】この試験片を８０℃の温水に１時間浸漬し
た後、６０℃の恒温器中で２時間乾燥する工程を１サイ
クルとし、最大１０サイクル繰返すものとした。A step of immersing the test piece in warm water at 80 ° C. for 1 hour and then drying it in a thermostat at 60 ° C. for 2 hours was set as one cycle and was repeated up to 10 cycles.
【００４１】そして、前記同様に表面の化粧単板に大き
なヒワレが発生するまでのサイクル数を調べた。評価方
法は前記寒熱くり返し試験の場合と同様である。その結
果を表２に併記した。Then, in the same manner as described above, the number of cycles until the occurrence of a large sunflower on the decorative veneer on the surface was examined. The evaluation method is the same as in the case of the cold heat repetition test. The results are also shown in Table 2.
【００４２】[0042]
【表２】 [Table 2]
【００４３】上表２の試験結果に示すように、本発明に
よる実施例１〜４の化粧床材は、比較例のものに較べ寒
熱くり返し試験及び耐水試験のいずれにおいても、１０
サイクルの試験後においてなお表面に大きなヒワレの発
生が認められず、熱的に苛酷な使用条件下でもヒワレが
発生しにくい耐熱性能に優れたものであることを確認し
得た。なお、表面の仕上げ塗料の種類による影響を見る
ために行った実施例３と４との対比において、外観上差
程問題にならない化粧単板に生じる小さなヒワレ（微小
ヒワレ）の発生状況を観察したところ、寒熱くり返し試
験では実施例３において８サイクル目、実施例４におい
て４サイクル目に微小ヒワレの発生が認められ、また耐
水試験では実施例３において７サイクル目、実施例４に
おいて４サイクル目に微小ヒワレの発生が認められた。As shown in the test results of Table 2 above, the decorative flooring materials of Examples 1 to 4 according to the present invention are 10 in both the cold heat repetition test and the water resistance test as compared with the comparative example.
After the cycle test, no large cracks were found on the surface, and it was confirmed that the heat resistance was excellent in that cracks did not easily occur even under thermally severe operating conditions. In addition, in comparison with Examples 3 and 4, which were carried out to see the influence of the type of finish paint on the surface, the occurrence of small creases (fine creases) on the decorative veneer, which does not cause a problem in appearance, was observed. However, in the cold heat repetition test, the occurrence of micro-wrinkles was observed at the 8th cycle in Example 3 and at the 4th cycle in Example 4, and in the water resistance test, the 7th cycle in Example 3 and the 4th cycle in Example 4. Occurrence of minute sunflowers was observed.
【００４４】[0044]
【発明の効果】この発明による化粧床材は、上述のよう
にヒワレの発生防止という観点から極めて耐熱性に優れ
たものであり、温風ヒーターの温風が直接当るような場
合、あるいは電気カーペットが直置き使用されてその熱
が直接床材に伝わるような場合等の熱的に苛酷な使用条
件下においても、表面に大きなヒワレが発生するのを効
果的に抑制して、長期にわたり良好な外観を保持し、実
質的な床材の耐用寿命を増大することができる。As described above, the decorative flooring material according to the present invention has extremely excellent heat resistance from the viewpoint of preventing the generation of sunflowers, and when the hot air of the warm air heater is directly contacted with it, or the electric carpet. Even if it is used directly and the heat is directly transmitted to the flooring material, even under severe heat conditions, it effectively suppresses the generation of large cracks on the surface and keeps it good for a long time. The appearance can be retained and the useful life of the floor material can be substantially increased.
【００４５】請求項２、３によれば、上記効果を一層良
好に達成しうる。According to the second and third aspects, the above effects can be achieved more favorably.
【図１】この発明に係る化粧床材の断面図である。FIG. 1 is a cross-sectional view of a decorative flooring material according to the present invention.
【図２】この発明に使用する３層構成の防湿性複合シー
トの断面図である。FIG. 2 is a cross-sectional view of a three-layer moisture-proof composite sheet used in the present invention.
１…合板基材 ２…木質化粧単板 ３…防湿性複合シート ４…熱可塑性合成樹脂層 ５…紙層 DESCRIPTION OF SYMBOLS 1 ... Plywood base material 2 ... Wood decorative veneer 3 ... Moisture-proof composite sheet 4 ... Thermoplastic synthetic resin layer 5 ... Paper layer
Claims (3)
に、熱可塑性合成樹脂層を中間にしてその両面に紙層が
積層された３層構成による防湿性複合シートが介在され
前記基材及び化粧単板と接合一体化されてなることを特
徴とする木質化粧床材。1. A moisture-proof composite sheet having a three-layer structure in which a paper layer is laminated on both sides of a thermoplastic synthetic resin layer as an intermediate, is interposed between a plywood base material and a wooden veneer surface. A wood decorative flooring material characterized by being integrally bonded to a base material and a decorative veneer.
脂層が厚さ１０〜１００μｍであり、両面の紙層が坪量
２０〜７５ｇ／ｍ2 である請求項１に記載の木質化粧床
材。2. The moisture-resistant composite sheet according to claim 1, wherein the intermediate thermoplastic resin layer has a thickness of 10 to 100 μm, and the paper layers on both sides have a basis weight of 20 to 75 g / m 2. Material.
性合成樹脂層が、ポリエチレンフィルムからなる請求項
１または２に記載の木質化粧床材。3. The wood decorative flooring material according to claim 1, wherein the intermediate thermoplastic synthetic resin layer in the moisture-proof composite sheet is made of a polyethylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3403495A JPH08226221A (en) | 1995-02-22 | 1995-02-22 | Wooden decorative floor material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3403495A JPH08226221A (en) | 1995-02-22 | 1995-02-22 | Wooden decorative floor material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08226221A true JPH08226221A (en) | 1996-09-03 |
Family
ID=12403063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3403495A Pending JPH08226221A (en) | 1995-02-22 | 1995-02-22 | Wooden decorative floor material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08226221A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116271A (en) * | 1999-10-18 | 2001-04-27 | Tokyo Gas Co Ltd | Laying method of floor heating element for floor heating and floor heating device |
| JP2007107255A (en) * | 2005-10-13 | 2007-04-26 | Matsushita Electric Works Ltd | Woody flooring |
| JP2009074327A (en) * | 2007-09-25 | 2009-04-09 | Daiken Trade & Ind Co Ltd | Reinforced flooring and method for producing reinforced flooring |
| JP2010236263A (en) * | 2009-03-31 | 2010-10-21 | Daiken Corp | Floor heating floor material and manufacturing method thereof |
| CN103659997A (en) * | 2013-11-09 | 2014-03-26 | 高月芳 | Technology for processing three-layer solid wood floor |
| CN107268945A (en) * | 2017-07-11 | 2017-10-20 | 安徽扬子地板股份有限公司 | Composite floor board and preparation method thereof |
-
1995
- 1995-02-22 JP JP3403495A patent/JPH08226221A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116271A (en) * | 1999-10-18 | 2001-04-27 | Tokyo Gas Co Ltd | Laying method of floor heating element for floor heating and floor heating device |
| JP2007107255A (en) * | 2005-10-13 | 2007-04-26 | Matsushita Electric Works Ltd | Woody flooring |
| JP2009074327A (en) * | 2007-09-25 | 2009-04-09 | Daiken Trade & Ind Co Ltd | Reinforced flooring and method for producing reinforced flooring |
| JP2010236263A (en) * | 2009-03-31 | 2010-10-21 | Daiken Corp | Floor heating floor material and manufacturing method thereof |
| CN103659997A (en) * | 2013-11-09 | 2014-03-26 | 高月芳 | Technology for processing three-layer solid wood floor |
| CN107268945A (en) * | 2017-07-11 | 2017-10-20 | 安徽扬子地板股份有限公司 | Composite floor board and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6582830B2 (en) | Adhesive tape and products made therefrom | |
| US5565252A (en) | Facing for wall board | |
| WO1991002120A1 (en) | Heat-bondable paper sheet | |
| CN106660300A (en) | Embossed and hot-melt laminated multilayer composite film | |
| JPH0319836A (en) | Method for manufacturing an assembly comprising flaky insulating foam material and assembly | |
| JP2001293703A (en) | Three-dimensional wooden building materials | |
| KR101642337B1 (en) | Insulating adhesive sheet and method for manufacturing of insulating adhesive sheet | |
| JP2000202964A (en) | Cosmetic material | |
| JPH09314520A (en) | Woody decorative board | |
| JPH07268970A (en) | Floor substrate panel | |
| JPH0999402A (en) | Surface decorative laminate and surface decorative woody plate | |
| JP3986680B2 (en) | Moisture-proof sheet and flash panel using the same | |
| JP4059333B2 (en) | Wooden core board | |
| JP2000096495A (en) | Paper-made wall paper | |
| KR100953374B1 (en) | Medium badge | |
| JPH07232305A (en) | Moisture resistant composite board | |
| JP2007107255A (en) | Woody flooring | |
| JPS6023001A (en) | Manufacture of decorative veneer laminate sheet | |
| JP2001096679A (en) | Moisture proof paper | |
| JP3844962B2 (en) | Decorative film and decorative board formed by laminating the same | |
| JPH0239794Y2 (en) | ||
| JP2651970B2 (en) | Method of manufacturing veneer sheet | |
| JP3026118B2 (en) | Floor material for direct application | |
| KR200364248Y1 (en) | Sheet of floor | |
| JPH1110604A (en) | Moisture-proof decorative board and its manufacturing method |