JP2008075350A - Floor decorative material - Google Patents

Floor decorative material Download PDF

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JP2008075350A
JP2008075350A JP2006256488A JP2006256488A JP2008075350A JP 2008075350 A JP2008075350 A JP 2008075350A JP 2006256488 A JP2006256488 A JP 2006256488A JP 2006256488 A JP2006256488 A JP 2006256488A JP 2008075350 A JP2008075350 A JP 2008075350A
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thermoplastic resin
layer
specific gravity
base material
resin layer
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Hiroshi Shibata
洋 柴田
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Toppan Cosmo Inc
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Toppan Cosmo Inc
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<P>PROBLEM TO BE SOLVED: To provide a floor decorative material superior in impact resistance, caster resistance, water resistance and productivity. <P>SOLUTION: This floor decorative material is formed by laminating a thermoplastic resin decorative sheet on a woody base material, and is characterized in that the thermoplastic resin decorative sheet has at least two layers or more of thermoplastic resin layers, and a woody base material side thermoplastic resin layer is formed higher in a specific gravity than a surface layer side thermoplastic resin layer, and is formed higher in the specific gravity than the woody base material, and the specific gravity of the surface layer side thermoplastic resin layer is set to 1.1 or less, and the specific gravity of the woody base material side thermoplastic resin layer is set to 1.3 or more. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、住宅、店舗、事務書、体育館などで用いられる床用化粧材に関する。特には、耐衝撃性、耐キャスター性、耐水性、生産性に優れた床用化粧材に関する。   The present invention relates to a floor decorative material used in a house, a store, an office work, a gymnasium, or the like. In particular, the present invention relates to a floor decorative material excellent in impact resistance, caster resistance, water resistance and productivity.

木質系基材上に、木目柄等の絵柄印刷を施した熱可塑性樹脂化粧シートを積層した床用化粧材には、表面の耐衝撃性、耐キャスター性などを向上する目的で、中間層を具備したものが知られている。   In order to improve the impact resistance and caster resistance of the surface, the intermediate layer is used for the decorative material for floors, which is made by laminating a thermoplastic resin decorative sheet that has been printed with a pattern such as a wood grain pattern on a wooden substrate. What is provided is known.

一方、木質系基材と熱可塑性樹脂化粧シートの間で、四季や床暖房の使用による温度変化、水廻りでの使用による湿度変化などが原因で、反りや突き上げ、層間剥離などの問題があった。   On the other hand, there are problems such as warping, pushing up, delamination, etc. between the wooden base material and the thermoplastic resin decorative sheet due to temperature changes due to the seasons and use of floor heating and humidity changes due to use around water. It was.

また、中間層が厚すぎると、熱可塑性樹脂化粧シートと積層後、木質系基材上に貼りあわせる前に巻き状態に巻き取ることができず、さらに木質系基材に貼り合せてから所望の大きさに切断することが困難なものとなることから、予め木質系基材と同等の大きさに切断した熱可塑性樹脂化粧シートと中間層の積層シートを枚葉方式で１枚づつ積層することとなり、生産性があがらなかった。
特開２００３−１１２７７ 特開２００４−１７５９０ If the intermediate layer is too thick, it cannot be rolled up before being laminated on the wooden base material after being laminated with the thermoplastic resin decorative sheet. Laminated sheets of thermoplastic resin decorative sheets and intermediate layers that have been cut in advance to the same size as the wood-based base material are stacked one by one in a single-wafer method because it becomes difficult to cut into sizes. The productivity was not improved.
JP2003-11277A JP2004-17590

本発明はこのような問題点を解決するためになされたものであり、その課題とするところは、耐衝撃性、耐キャスター性、耐水性、生産性に優れた床用化粧材を提供することにある。   The present invention has been made to solve such problems, and the object of the present invention is to provide a floor decorative material excellent in impact resistance, caster resistance, water resistance and productivity. It is in.

本願発明の請求項１記載の床用化粧材は、木質系基材上に熱可塑性樹脂化粧シートを積層してなる床用化粧材において、前記熱可塑性樹脂化粧シートが少なくとも２層以上の熱可塑性樹脂層を有してなり、木質系基材側の熱可塑性樹脂層が、表層側の熱可塑性樹脂層より比重が高く、且つ木質系基材よりも比重が高いことを特徴とするものである。   The floor decorative material according to claim 1 of the present invention is a floor decorative material obtained by laminating a thermoplastic resin decorative sheet on a wooden base material, wherein the thermoplastic resin decorative sheet has at least two layers of thermoplasticity. It has a resin layer, and the thermoplastic resin layer on the wooden substrate side has a higher specific gravity than the thermoplastic resin layer on the surface layer side, and has a higher specific gravity than the wooden substrate. .

また、その請求項２記載の床用化粧材は、前記表層側の熱可塑性樹脂層の比重が１．１以下であり、前記木質系基材側の熱可塑性樹脂層の比重が１．３以上であることを特徴とするものである。   Further, in the floor covering material according to claim 2, the specific gravity of the thermoplastic resin layer on the surface layer side is 1.1 or less, and the specific gravity of the thermoplastic resin layer on the wood base material side is 1.3 or more. It is characterized by being.

また、その請求項３記載の床用化粧材は、前記木質系基材側の熱可塑性樹脂層が、さらに３層に分けられる熱可塑性樹脂の積層構造からなり、前記３層のうち表層側と木質基材側の層が、その間の層より比重が高いことを特徴とするものである。   Further, the floor decorative material according to claim 3 has a laminated structure of a thermoplastic resin in which the thermoplastic resin layer on the wooden base material side is further divided into three layers, and the surface layer side of the three layers The layer on the wooden substrate side is characterized by having a higher specific gravity than the layer in between.

また、その請求項４記載の床用化粧材は、前記木質系基材側の熱可塑性樹脂層の厚みが、０．１ｍｍ以上であることを特徴とするものである。   The floor decorative material according to claim 4 is characterized in that the thickness of the thermoplastic resin layer on the side of the wooden base material is 0.1 mm or more.

本発明の請求項１記載の発明により、表層側の熱可塑性樹脂層よりも木質基材側の熱可塑性樹脂層の比重が高いことで、表面側の柔らかい樹脂層により衝撃は吸収されつつも、木質基材側の比較的硬い樹脂層により、衝撃は木質基材側まで伝わらない。よってキャスターの荷重なので凹みが出来ても木質基材まで凹むことは抑えられるものとなる。
また、これらの層により表層の熱可塑性樹脂をある程度硬く設計することが可能となり、これにより、表面の耐衝撃性、耐衝撃性が良好なものとなる。また、施工性の優れた床用化粧材を得ることが可能となる。 According to the invention of claim 1 of the present invention, the specific gravity of the thermoplastic resin layer on the wood substrate side is higher than the thermoplastic resin layer on the surface layer side, so that the impact is absorbed by the soft resin layer on the surface side, Due to the relatively hard resin layer on the wooden substrate side, the impact is not transmitted to the wooden substrate side. Therefore, since it is a load of a caster, even if a dent is made, it is possible to suppress the dent to the wooden base material.
Further, the thermoplastic resin of the surface layer can be designed to be somewhat hard by using these layers, and thereby the impact resistance and impact resistance of the surface are improved. In addition, it is possible to obtain a floor decorative material having excellent workability.

またその請求項２記載の発明により、前記表層側の熱可塑性樹脂層の比重が１．１以下、木質系基材側の熱可塑性樹脂層の比重が１．３以上とすることで、上記本願発明の特徴がよりはっきりと現れるものとなる。   According to the invention described in claim 2, the specific gravity of the thermoplastic resin layer on the surface layer side is 1.1 or less, and the specific gravity of the thermoplastic resin layer on the wood base material side is 1.3 or more. The features of the invention will appear more clearly.

またその請求項３記載の発明により、全ての層を高くする必要は無く、表裏の層を固くすることで、十分な比重が得られやすいものとなり、内側の比重を下げることでコストダウンが容易に実現するものとなる。   Further, according to the invention of claim 3, it is not necessary to make all the layers high, and it becomes easy to obtain a sufficient specific gravity by hardening the front and back layers, and it is easy to reduce the cost by reducing the inner specific gravity. Will be realized.

またその請求項４記載の発明により、前記木質系基材側の熱可塑性樹脂層の厚みが、０．１ｍｍ以上であることは、上記の結果が得られにくい。ある程度の厚みがないと耐キャスター性に効いてこない。   According to the fourth aspect of the present invention, if the thickness of the thermoplastic resin layer on the side of the wood-based substrate is 0.1 mm or more, it is difficult to obtain the above result. Without a certain thickness, it does not work for caster resistance.

以下、本発明を図面に基づき詳細に説明する。図１に本願発明の床用化粧材の一実施例の断面の構造を示す。
木質系基材１と熱可塑性樹脂化粧シート２とからなり、熱可塑性樹脂化粧シート２は熱可塑性樹脂シート２１と、適宜設ける絵柄層２２と表層側の比重の低い熱可塑性樹脂層３２と、木質系基材１側の比重の高い熱可塑性樹脂層３１とからなる。 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows a cross-sectional structure of an embodiment of a floor decorative material according to the present invention.
The thermoplastic resin decorative sheet 2 comprises a thermoplastic resin sheet 21, a suitably provided picture layer 22, a thermoplastic resin layer 32 having a low specific gravity on the surface layer side, and a wooden material. And a thermoplastic resin layer 31 having a high specific gravity on the side of the base material 1.

図２に本願発明の床用化粧材の他の実施例の断面の構造を示す。
木質系基材１側の比重の高い熱可塑性樹脂層３１が、さらに木質基材側の層３０１、表層側の層３０２、その間の層３０３に分かれてなる。 FIG. 2 shows a cross-sectional structure of another embodiment of the flooring decorative material of the present invention.
The thermoplastic resin layer 31 having a high specific gravity on the wooden substrate 1 side is further divided into a layer 301 on the wooden substrate side, a layer 302 on the surface layer side, and a layer 303 therebetween.

本発明における木質系基材１としては、複数枚の木材単板をその繊維方向を交互に直交させて積層接着してなる積層合板がその代表的なものとしてあげられる。最表面の木材として、例えばクルイン材、カプール材、メンクラン材等、シリカ分を多く含み硬質で耐久性の高い南洋材系の材種を使用すれば、さらに表面硬度や耐キャスター性に優れた化粧板が得られる。前記積層合板のほかにも、例えば単板積層材、配向性ボード、パーティクルボード等、従来公知の各種の木質系ボード類を任意に使用することができる。耐水性を考慮するならば、日本農林規格特殊加工化粧合板の１類浸漬試験に適合する木質系基材が望ましい。その比重としては、本発明では積層される木質基材側の熱可塑性樹脂層より比重が低いものとなり、その値はおおよそ１．０以下である。   A typical example of the wood-based substrate 1 in the present invention is a laminated plywood formed by laminating and bonding a plurality of wood veneers with their fiber directions alternately orthogonal. If you use the hardest and most durable South Sea lumber grades with high silica content, such as Kluin, Kapoor, Menklan, etc., as the outermost wood, makeup with superior surface hardness and caster resistance A board is obtained. In addition to the laminated plywood, various conventionally known wooden boards such as a single-plate laminated material, an orientation board, and a particle board can be arbitrarily used. If water resistance is taken into consideration, it is desirable to use a woody base material that conforms to the No. 1 immersion test of Japanese agricultural and forestry standard specially processed decorative plywood. As the specific gravity, in the present invention, the specific gravity is lower than that of the thermoplastic resin layer on the side of the wooden base material to be laminated, and the value is approximately 1.0 or less.

本発明における熱可塑性樹脂化粧シート２としては、適宜着色した熱可塑性樹脂シート２１の表面にグラビア印刷などで絵柄層２２を設け、表層側に比重の低い熱可塑性樹脂層３２となるシート、木質系基材側に比重の高い熱可塑性樹脂層３１となるシートを、それぞれ接着剤を介して貼り合せることで設け、さらに表面にコーティングなどで保護層を設けたものが挙げられるが、特にこれに限定するものではなく、木質基材の風合いを生かすために透明な熱可塑性樹脂シート２１（熱可塑性層３２、３１も透明）としても良いし、熱可塑性樹脂シート２１の木質基材側に絵柄層２２を設けても良いし、保護層を設けなくても良い。   As the thermoplastic resin decorative sheet 2 in the present invention, a sheet that is provided with a pattern layer 22 by gravure printing or the like on the surface of an appropriately colored thermoplastic resin sheet 21 and becomes a thermoplastic resin layer 32 having a low specific gravity on the surface layer side, a woody system Although the sheet | seat used as the thermoplastic resin layer 31 with high specific gravity is provided by bonding together through an adhesive agent respectively on the base-material side, what further provided the protective layer with coating etc. on the surface is mentioned, Especially, it is limited to this. It is good also as the transparent thermoplastic resin sheet 21 (The thermoplastic layers 32 and 31 are also transparent) in order to make use of the texture of a wooden base material, and the pattern layer 22 on the wooden base material side of the thermoplastic resin sheet 21 is not made. Or a protective layer may not be provided.

熱可塑性樹脂化粧シート２は、熱可塑性樹脂シート２１と表層側の比重の低い熱可塑性樹脂層３２と後述する木質機材側の熱可塑性樹脂層３１と合計して４００μｍ以下とするのが好ましい。４００μｍ以下とすることで、熱可塑性樹脂化粧シート２を、連続的なロールで製造し、貼り合わせた状態で巻き取ることが可能となり、その後、適宜、木質系基材１と貼り合せることが可能となる。   It is preferable that the thermoplastic resin decorative sheet 2 is 400 μm or less in total with the thermoplastic resin sheet 21, the thermoplastic resin layer 32 having a low specific gravity on the surface layer side, and the thermoplastic resin layer 31 on the wooden equipment side described later. By setting the thickness to 400 μm or less, the thermoplastic resin decorative sheet 2 can be produced in a continuous roll and wound in a bonded state, and thereafter can be appropriately bonded to the wooden base material 1. It becomes.

熱可塑性樹脂シート２１としては、非晶状態の結晶性ポリエステル樹脂、非結晶性ポリエステル系樹脂、２軸延伸ポリエステル樹脂、ポリプロピレン樹脂、ポリエチレン樹脂などから選択される１種あるいは適宜混合した樹脂の単層または複合層などが使用できる。   As the thermoplastic resin sheet 21, a single layer selected from an amorphous crystalline polyester resin, an amorphous polyester resin, a biaxially stretched polyester resin, a polypropylene resin, a polyethylene resin or the like, or a single layer of appropriately mixed resin Or a composite layer etc. can be used.

絵柄層２２としては、公知の不透明な無機あるいは有機顔料からなる２液硬化型ウレタン系樹脂バインダー、アクリル系樹脂、塩化ビニル−酢酸ビニル共重合樹脂等からなるグラビアインキを、グラビア印刷などにより設けることにより使用可能である。   As the pattern layer 22, a gravure ink made of a known two-component curable urethane resin binder made of an opaque inorganic or organic pigment, an acrylic resin, a vinyl chloride-vinyl acetate copolymer resin, or the like is provided by gravure printing or the like. Can be used.

表面に適宜設ける保護層としは、電離放射線硬化型樹脂や２液硬化型ウレタン系樹脂があげられる。これに表面の滑り性や各種耐性を付与するため、紫外線吸収剤、光安定剤、ガラスビーズなどの添加剤を適宜加えても良い。これらは適宜希釈剤を加えて、コーティングにより乾燥後の塗布厚が６〜１５ｇ／ｍ２程度となるように塗布するのが好適であるが、特にこの方法に限定されるものではなく、適宜公知の方法にて設けられる。   Examples of the protective layer appropriately provided on the surface include ionizing radiation curable resins and two-component curable urethane resins. In order to impart surface slipperiness and various resistances thereto, additives such as an ultraviolet absorber, a light stabilizer, and glass beads may be added as appropriate. These are suitably added with a diluent and applied by coating so that the coating thickness after drying is about 6 to 15 g / m 2, but is not particularly limited to this method, and is appropriately known. Provided by the method.

本発明における熱可塑性樹脂層３１、３２としては、非晶状態の結晶性ポリエステル樹脂、非結晶性ポリエステル系樹脂、２軸延伸ポリエステル樹脂、ポリプロピレン樹脂、ポリエチレン樹脂などから選択される１種あるいは適宜混合した樹脂の単層または複合層などが使用できる。これらに適宜充填剤を添加しても良い。充填剤としては、炭酸カルシウム、タルク、クレー、ガラス粉末、ガラス繊維、金属粉などの無機系充填剤や、木粉、紙粉などの有機系充填剤があげられる。これら構成する樹脂材料、充填剤の種類と充填量などを適宜選択し、本発明においては、それぞれの比重を計算の上、前記本発明で示す層構成となるように設計する。比重の測定方法としては、ＪＩＳ Ｋ ７１１２ プラスチックの密度及び比重の測定方法があげられる。また、必要に応じて、紫外線吸収剤、光安定剤、熱安定剤等を添加してもよい。   As the thermoplastic resin layers 31 and 32 in the present invention, one kind selected from a crystalline polyester resin in an amorphous state, a non-crystalline polyester resin, a biaxially stretched polyester resin, a polypropylene resin, a polyethylene resin, or a suitable mixture A single layer or a composite layer of the resin can be used. You may add a filler suitably to these. Examples of the filler include inorganic fillers such as calcium carbonate, talc, clay, glass powder, glass fiber, and metal powder, and organic fillers such as wood powder and paper powder. The resin material, the type of filler, and the filling amount are appropriately selected, and in the present invention, the specific gravity is calculated and the layer structure shown in the present invention is designed. Examples of the method for measuring the specific gravity include a method for measuring the density and specific gravity of JIS K 7112 plastic. Moreover, you may add a ultraviolet absorber, a light stabilizer, a heat stabilizer, etc. as needed.

木質系基材１として、厚み１２ｍｍ×３０３ｍｍ×１８１８ｍｍのラワン合板（比重０．７）を用い、これにラミネーターにて２液水性エマルジョン接着剤（中央理化工業株式会社製「リカボンドＢＡ−１０Ｌ」と「ＢＡ−１０Ｂ」を１００：５で混合）をウエット状態で１００ｇ／ｍ２となるように塗工した。   A lauan plywood (specific gravity 0.7) having a thickness of 12 mm × 303 mm × 1818 mm is used as the wood-based substrate 1, and a two-component aqueous emulsion adhesive (“Rikabond BA-10L” manufactured by Chuo Rika Kogyo Co., Ltd.) is used with a laminator. “BA-10B” was mixed at 100: 5) in a wet state so as to be 100 g / m 2.

熱可塑性樹脂シートとして、無機物を含有させて比重１．０とした厚み７０μｍの着色ポリプロピレンフィルム（リケンテクノス株式会社製「ＯＷ１０２４」）を用い、この表面に絵柄層として、グラビアインキ（東洋インキ製造株式会社製「ラミスター」）で木目柄を印刷した後、前記熱可塑性樹脂シートの印刷を施した面とは逆面にシリカ粉末を含有する２液ウレタン系プライマー樹脂を乾燥後の厚みが１μｍとなるようにグラビア塗工した。   As a thermoplastic resin sheet, a 70 μm thick colored polypropylene film (“OW1024” manufactured by Riken Technos Co., Ltd.) containing an inorganic substance and having a specific gravity of 1.0 was used. After printing the wood grain pattern with “Lamistor”, the thickness after drying the two-component urethane primer resin containing silica powder on the opposite side of the surface on which the thermoplastic resin sheet was printed is 1 μm. Gravure coating.

さらに、前記絵柄層上に表層側の熱可塑性樹脂層３２として、紫外線吸収剤や光安定剤を適宜含有し、さらに無機物を含有させて比重１．０とした厚み８０μｍの透明ポリプロピレンフィルム（リケンテクノス株式会社製「ＯＷクリヤー」）を、接着剤（東洋モートン株式会社製「ＴＭ−５９３」）を乾燥後の塗布量が１０ｇ／ｍ２になるように塗工してからドライラミネート方式で貼り合わせた。   Furthermore, as a thermoplastic resin layer 32 on the surface layer side on the pattern layer, a transparent polypropylene film having a thickness of 80 μm and containing a specific gravity of 1.0 by containing an ultraviolet absorber and a light stabilizer and further containing an inorganic substance (Riken Technos Co., Ltd.) After applying an adhesive (“TM-593” manufactured by Toyo Morton Co., Ltd.) so that the coating amount after drying was 10 g / m 2, it was bonded by a dry laminating method.

前記熱可塑性樹脂シートの２液ウレタン系プライマー樹脂を塗工した面に、木質系基材側の熱可塑性樹脂層３１として、無機物を含有させて比重１．４とした厚み１００μｍの非結晶性ポリエステル樹脂シート（リケンテクノス株式会社製「リベスター」）を、接着剤（東洋モートン株式会社製「ＴＭ−５９３」）を乾燥後の塗布量が１０ｇ／ｍ２になるように塗工してからをドライラミネート方式で貼り合せ、熱可塑性樹脂化粧シート２を得た。   Non-crystalline polyester having a thickness of 100 μm having a specific gravity of 1.4 by containing an inorganic substance as the thermoplastic resin layer 31 on the side of the wood base material on the surface of the thermoplastic resin sheet coated with the two-component urethane primer resin After applying a resin sheet (“Rivester” manufactured by Riken Technos Co., Ltd.) and an adhesive (“TM-593” manufactured by Toyo Morton Co., Ltd.) so that the coating amount after drying is 10 g / m 2, dry laminating method Was laminated to obtain a thermoplastic resin decorative sheet 2.

そして、前記木質系基材１の接着剤を塗工した面に、前記熱可塑性樹脂化粧シート２の木質基材側の熱可塑性樹脂層３１側を貼り合せ、本願発明の床用化粧材を得た。   And the thermoplastic resin layer 31 side by the side of the wood base material of the thermoplastic resin decorative sheet 2 is bonded to the surface of the wood base material 1 coated with the adhesive to obtain the floor decorative material of the present invention. It was.

実施例１における木質基材側の熱可塑性樹脂層３１として、木質基材側の層３０１と表層側の層３０２を非結晶性ポリエステル（比重１．４）、その間の層３０３をポリブチレンテレフタレート（比重１．３５）とし、厚み２５μｍ／５０μｍ／２５μｍで共押出しして得たポリエステル系フィルム（大倉工業株式会社製「ＯＫ−ＰＥＴ」）を用いた以外は実施例１と同様にして、本願発明の床用化粧材を得た。   As the thermoplastic resin layer 31 on the wood substrate side in Example 1, the layer 301 on the wood substrate side and the layer 302 on the surface layer side are made of non-crystalline polyester (specific gravity 1.4), and the layer 303 therebetween is made of polybutylene terephthalate ( The invention of the present application was carried out in the same manner as in Example 1 except that a polyester film (“OK-PET” manufactured by Okura Kogyo Co., Ltd.) obtained by co-extrusion with a specific gravity of 1.35) and a thickness of 25 μm / 50 μm / 25 μm was used. Flooring cosmetic material was obtained.

＜比較例１＞
実施例１における木質基材側の熱可塑性樹脂層３１として、無機物を含有させて比重１．０とした厚み１００μｍの着色ポリプロピレンフィルム（リケンテクノス株式会社製「ＯＷ１０２４」）を用いた以外は実施例１と同様にして床用化粧材を得た。 <Comparative Example 1>
Example 1 except that a 100 μm thick colored polypropylene film (“OW1024” manufactured by Riken Technos Co., Ltd.) having an inorganic substance and a specific gravity of 1.0 was used as the thermoplastic resin layer 31 on the side of the wood base material in Example 1. In the same manner as above, a flooring decorative material was obtained.

＜比較例２＞
実施例１における表層側の熱可塑性樹脂層３２を、無機物を含有させて比重１．４とした厚み９０μｍの非結晶性ポリエステル樹脂シート（リケンテクノス株式会社製「リベスター」）とし、さらに木質基材側の熱可塑性樹脂層３１を、無機物を含有させて比重１．０とした厚み１００μｍの着色ポリプロピレンフィルム（リケンテクノス株式会社製「ＯＷ１０２４」）を用いた以外は実施例１と同様にして床用化粧材を得た。 <Comparative example 2>
The thermoplastic resin layer 32 on the surface layer side in Example 1 is a non-crystalline polyester resin sheet (“Rivester” manufactured by Riken Technos Co., Ltd.) having a thickness of 90 μm that contains an inorganic substance and has a specific gravity of 1.4. The decorative layer for flooring was carried out in the same manner as in Example 1 except that a 100 μm thick colored polypropylene film (“OW1024” manufactured by Riken Technos Co., Ltd.) having an inorganic substance and a specific gravity of 1.0 was used. Got.

＜性能評価試験＞
耐キャスター性試験として、化粧材の上に、ナイロン樹脂製のダブルキャスター（直径４０ｍｍ、１輪の幅９ｍｍ、２輪間の幅１８ｍｍ）に２５ｋｇ重りをかけ、５千ストローク（１ストローク幅２００ｍｍ ストロークスピード速度２００ｍｍ／秒）動かした後、表層の傷、凹みを評価した。 <Performance evaluation test>
As a caster resistance test, a 25 kg weight was applied to a double caster made of nylon resin (diameter 40 mm, 1 wheel width 9 mm, 2 wheel width 18 mm) on the decorative material, and 5,000 strokes (1 stroke width 200 mm stroke). After moving (speed speed 200 mm / sec), scratches and dents on the surface layer were evaluated.

デュポン衝撃試験として、重り５００ｇ落下高さ３００ｍｍ、打ち径Ｒ：６．３ｍｍで行い、化粧材の凹みの深さを５点測定し、その平均値を示した。結果を表１に示す。

Figure 2008075350
As a DuPont impact test, the weight was 500 g, the drop height was 300 mm, and the striking diameter R was 6.3 mm. The depth of the dent of the decorative material was measured at five points, and the average value was shown. The results are shown in Table 1.
Figure 2008075350

本発明の床用化粧材は、住宅、店舗、事務書、体育館などで用いられる床用化粧材に関して、特に耐衝撃性、耐キャスター性、耐水性、生産性に優れた床用化粧材として用いることが可能である。   The floor decorative material of the present invention is used as a floor decorative material particularly excellent in impact resistance, caster resistance, water resistance, and productivity for floor decorative materials used in houses, stores, office books, gymnasiums, and the like. It is possible.

本発明の床用化粧材の一実施例の断面の構造を示す説明図である。It is explanatory drawing which shows the structure of the cross section of one Example of the decorative material for floors of this invention. 本発明の床用化粧材の他の実施例の断面の構造を示す説明図である。It is explanatory drawing which shows the structure of the cross section of the other Example of the decorative material for floors of this invention.

符号の説明Explanation of symbols

１…木質系基材
２…熱可塑性樹脂化粧シート
２１…熱可塑性樹脂シート
２２…絵柄層
３１…木質系基材側の熱可塑性樹脂層
３２…表層側の熱可塑性樹脂層
３０１…木質基材側の層
３０２…表層側の層
３０３…その間の層 DESCRIPTION OF SYMBOLS 1 ... Wooden base material 2 ... Thermoplastic resin decorative sheet 21 ... Thermoplastic resin sheet 22 ... Picture layer 31 ... Thermoplastic resin layer on the wooden base material side 32 ... Thermoplastic resin layer on the surface layer side 301 ... Wooden base material side Layers 302 ... surface layer 303 ... layers in between

Claims (4)

木質系基材上に熱可塑性樹脂化粧シートを積層してなる床用化粧材において、前記熱可塑性樹脂化粧シートが少なくとも２層以上の熱可塑性樹脂層を有してなり、木質系基材側の熱可塑性樹脂層が、表層側の熱可塑性樹脂層より比重が高く、且つ木質系基材よりも比重が高いことを特徴とする床用化粧材。
In the floor decorative material formed by laminating a thermoplastic resin decorative sheet on a wooden base material, the thermoplastic resin decorative sheet has at least two thermoplastic resin layers, and the wooden base material side A floor decorative material, wherein the thermoplastic resin layer has a specific gravity higher than that of the thermoplastic resin layer on the surface layer side and higher than that of the wood-based substrate.
前記表層側の熱可塑性樹脂層の比重が１．１以下であり、前記木質系基材側の熱可塑性樹脂層の比重が１．３以上であることを特徴とする請求項１記載の床用化粧材。
2. The floor according to claim 1, wherein the specific gravity of the thermoplastic resin layer on the surface layer side is 1.1 or less, and the specific gravity of the thermoplastic resin layer on the wooden substrate side is 1.3 or more. Cosmetic material.
前記木質系基材側の熱可塑性樹脂層が、さらに３層に分けられる熱可塑性樹脂の積層構造からなり、前記３層のうち表層側と木質基材側の層が、その間の層より比重が高いことを特徴とする請求項１、２いずれか記載の床用化粧材。
The thermoplastic resin layer on the wood base material side has a laminated structure of thermoplastic resins that are further divided into three layers. Of the three layers, the surface layer side and the wood base material side layer have a specific gravity higher than the layers in between. The floor decorative material according to claim 1, wherein the floor decorative material is high.
前記木質系基材側の熱可塑性樹脂層の厚みが、０．１ｍｍ以上であることを特徴とする請求項１〜３いずれか記載の床用化粧材。
The flooring decorative material according to any one of claims 1 to 3, wherein the thickness of the thermoplastic resin layer on the wooden substrate side is 0.1 mm or more.
JP2006256488A 2006-09-21 2006-09-21 Floor decorative material Pending JP2008075350A (en)

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KR20180134404A (en) * 2017-06-07 2018-12-18 다이니폰 인사츠 가부시키가이샤 Plywood and manufacturing method thereof

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JPH09169095A (en) * 1995-12-20 1997-06-30 Dainippon Printing Co Ltd Decorating material
JP2001140454A (en) * 1999-11-16 2001-05-22 Ibiden Co Ltd Floor structure of building and its floor substrate material
JP2004216579A (en) * 2003-01-09 2004-08-05 Asahi Kasei Chemicals Corp Molded product and its injection molding method
JP2005127125A (en) * 2003-09-29 2005-05-19 Dainippon Printing Co Ltd Decorative sheet for flooring
JP2005264136A (en) * 2003-09-29 2005-09-29 Dainippon Printing Co Ltd Water-based coating
JP2005290736A (en) * 2004-03-31 2005-10-20 Dainippon Printing Co Ltd Floor material

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JPH09169095A (en) * 1995-12-20 1997-06-30 Dainippon Printing Co Ltd Decorating material
JP2001140454A (en) * 1999-11-16 2001-05-22 Ibiden Co Ltd Floor structure of building and its floor substrate material
JP2004216579A (en) * 2003-01-09 2004-08-05 Asahi Kasei Chemicals Corp Molded product and its injection molding method
JP2005127125A (en) * 2003-09-29 2005-05-19 Dainippon Printing Co Ltd Decorative sheet for flooring
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Publication number Priority date Publication date Assignee Title
KR20180134404A (en) * 2017-06-07 2018-12-18 다이니폰 인사츠 가부시키가이샤 Plywood and manufacturing method thereof
CN109414834A (en) * 2017-06-07 2019-03-01 大日本印刷株式会社 Glued board and its manufacturing method
KR102032308B1 (en) * 2017-06-07 2019-10-15 다이니폰 인사츠 가부시키가이샤 Plywood and its manufacturing method

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