JP2019218730A - Wooden floor material - Google Patents
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本発明は密着層を有する木質床材に関する。 The present invention relates to a wooden flooring material having an adhesion layer.
特に商業施設などにおいて、下地材への施工（直貼り）が簡単にできる木質床材が切望されており、この要求に応えるものとして、特許文献１に記載されるように、木質基板の裏面側に緩衝材層を介して吸着層（アクリル系樹脂層）を設けた木質床材が提案されている。 Particularly in commercial facilities and the like, there is a long-felt need for a wooden flooring material that can be easily applied to a base material (direct application), and as described in Patent Literature 1, the back side of a wooden flooring material meets this demand. There has been proposed a wooden flooring material provided with an absorption layer (acrylic resin layer) via a buffer material layer.
しかしながら、特許文献１記載の従来技術によると、木質基材が５〜１５ｍｍのように厚く撓みにくい（段落００１９）ため、表面に突部や凹部などの不陸がある下地材には十分に吸着せず、浮きや剥がれなどの施工不良が起きてしまうという問題があった。 However, according to the prior art described in Patent Literature 1, since the wooden base material is thick and hard to bend such as 5 to 15 mm (paragraph 0019), it is sufficiently adsorbed to the base material having irregularities such as protrusions and recesses on the surface. Without this, there is a problem that poor construction such as floating or peeling occurs.
特許文献１では、このような施工不良を解消するために、下地材の表面に樹脂塗料を塗布し、または樹脂シートを貼付するなどによって下地材の表面を略平面にした後に床材を施工する（段落００２４，００２５）ものとしているが、樹脂塗料の塗布または樹脂シートの貼付などの作業手間を要することが新たな問題となる。 In Patent Literature 1, in order to eliminate such a construction failure, a floor material is applied after applying a resin paint to the surface of the base material or attaching a resin sheet to make the surface of the base material substantially flat. (Paragraphs 0024 and 0025), however, a new problem arises in that it requires labor such as applying a resin paint or attaching a resin sheet.
したがって、本発明が解決しようとする課題は、追加的な作業手間を要することなく、不陸がある下地材であっても良好に密着して、浮きや剥がれなどの施工不良を起こさない木質床材を提供することである。 Therefore, the problem to be solved by the present invention is to provide a wooden floor which does not require construction work such as floating or peeling without requiring additional work time and which adheres well even to a base material having unevenness. To provide materials.
この課題を解決するため、本願の請求項１に係る発明は、木質基材の表面側に化粧材が設けられ、裏面側に密着層が設けられてなる木質床材であって、木質基材の厚さが０．８〜２．０ｍｍであることを特徴とする。 In order to solve this problem, an invention according to claim 1 of the present application is a wooden flooring material in which a decorative material is provided on a front surface side of a wooden base material and an adhesion layer is provided on a back surface side, Has a thickness of 0.8 to 2.0 mm.
本願の請求項２に係る発明は、木質基材の表面側に化粧材が設けられ、裏面側に密着層が設けられてなる木質床材であって、木質基材の曲げ剛性が５×１０４〜５０×１０４Ｎ・ｍｍ２であることを特徴とする。 The invention according to claim 2 of the present application is a wooden flooring material in which a decorative material is provided on a front surface side of a wooden base material and an adhesive layer is provided on a back surface side, and the bending rigidity of the wooden base material is 5 × 10 4 to 50 × 10 4 N · mm 2 .
本願の請求項３に係る発明は、木質基材の表面側に化粧材が設けられ、裏面側に密着層が設けられてなる木質床材であって、密着層の平面引張り試験による密着力が０．０８Ｎ／ｍｍ２以上であることを特徴とする。 The invention according to claim 3 of the present application is a wooden flooring material in which a decorative material is provided on a front surface side of a wooden base material and an adhesion layer is provided on a back surface side. 0.08 N / mm 2 or more.
本願の請求項４に係る発明は、木質基材の表面側に化粧材が設けられ、裏面側に密着層が設けられてなる木質床材であって、木質基材の厚さが０．８〜２．０ｍｍであり、木質基材の曲げ剛性が５×１０４〜５０×１０４Ｎ・ｍｍ２であり、密着層の平面引張り試験による密着力が０．０８Ｎ／ｍｍ２以上であることを特徴とする。 The invention according to claim 4 of the present application is a wooden flooring material in which a decorative material is provided on a front surface side of a wooden base material and an adhesion layer is provided on a back surface side, and the thickness of the wooden base material is 0.8. ２．０2.0 mm, the bending stiffness of the wood substrate is 5 × 10 4 50 × 10 4 N · mm 2 , and the adhesion force of the adhesion layer in the plane tensile test is 0.08 N / mm 2 or more. It is characterized by.
本願の請求項５に係る発明は、請求項１ないし請求項４のいずれかに記載の木質床材において、密着層の平面引張り試験による密着力が０．０８〜０．１８Ｎ／ｍｍ２であることを特徴とする。 The invention according to claim 5 of the present application is the wood flooring material according to any one of claims 1 to 4, wherein the adhesion strength of the adhesion layer in a plane tensile test is 0.08 to 0.18 N / mm 2 . It is characterized by the following.
本願の請求項６に係る発明は、請求項１ないし請求項５のいずれかに記載の木質床材において、木質繊維板からなる木質基材とアクリル樹脂発泡体からなる密着層との間にクッション材が設けられることを特徴とする。 The invention according to claim 6 of the present application is the wooden flooring material according to any one of claims 1 to 5, wherein a cushion is provided between a wood base material made of a wood fiber board and an adhesion layer made of an acrylic resin foam. A material is provided.
本発明による木質床材は、下地材に馴染んで密着する密着層を有するので、フロアのリフォームなどの際に、既設の床材を剥離し、接着剤を塗布し、新たな床材を敷設して釘打ち固定するという一連の作業を省略することができ、施工が容易である。また、本発明による木質床材は、下地材に釘打ち固定されず、密着層が下地材に密着することによって施工されるので、一旦施工された後に下地材から剥離することが容易であり、補修や改装を簡単に行うことができる。 Since the wooden flooring material according to the present invention has an adhesion layer that is familiar with and adheres to the base material, the existing flooring material is peeled off when a floor is reformed, an adhesive is applied, and a new flooring material is laid. A series of operations of nailing and fixing can be omitted, and construction is easy. Further, the wooden flooring material according to the present invention is not nailed and fixed to the base material, but is applied by the close contact layer being adhered to the base material, so that once it is applied, it is easy to peel off from the base material, Repairs and renovations can be performed easily.
また、本発明による木質床材においては、木質基材の厚さが０．８〜２．０ｍｍとされ、および／または、木質基材の曲げ剛性が５×１０４〜５０×１０４Ｎ・ｍｍ２とされ、および／または、密着層の密着力が０．０８Ｎ／ｍｍ２以上とされているので、下地材に±３ｍｍ程度の不陸があっても、木質基材の撓みおよび／または密着層の弾性変形を介してこれを吸収し、下地材に良好に馴染むことができ、浮きや剥がれなどの施工不良を起こさない。 In the wooden flooring material according to the present invention, the thickness of the wooden base material is 0.8 to 2.0 mm, and / or the bending rigidity of the wooden base material is 5 × 10 4 to 50 × 10 4 N ·. is a mm 2, and / or, since the adhesive force of the adhesive layer is a 0.08 N / mm 2 or more, even if there is uneven surface of about ± 3 mm in the base material, the deflection of wood substrates and / or This is absorbed through the elastic deformation of the adhesion layer, and can be favorably applied to the base material, and does not cause construction failure such as floating or peeling.
また、本発明による木質床材において、密着層の密着力が０．０８〜０．１８Ｎ／ｍｍ２の範囲内とされることにより、不陸を有する下地材であっても良好に密着して施工することができると共に、施工後に木質床材を下地材から剥離することが容易であるので、リフォームに対応することができる。 Moreover, in the wood flooring material according to the present invention, the adhesion strength of the adhesion layer is set to be in the range of 0.08 to 0.18 N / mm 2 , so that the wood flooring material can adhere well even to a ground material having unevenness. Since it can be constructed and the wooden floor material can be easily separated from the base material after the construction, it is possible to cope with reform.
また、木質基材に表面平滑性に優れる木質繊維板が用いられることにより、その表面に化粧材の貼着や塗装などによる化粧を施したときに良好な化粧面を与える効果が得られ、密着層にアクリル樹脂発泡体が用いられることにより、その微細な気泡がいわゆる吸盤作用を果たして下地材表面に良好に密着ないし吸着する効果が得られ、これらの間にクッション材が設けられることにより、床材としての適度なクッション性を与えて歩行感を良好にする効果が得られる。したがって、木質繊維板（木質基材）／クッション材／アクリル樹脂発泡体（密着層）の積層構成を有することにより、不陸を有する下地材にも良好に馴染んで浮きや剥がれなどの施工不良を起こさないという基本的な効果に加えて、床材として要求される諸性能を満たす木質床材を提供することができる。 In addition, the use of a wood fiber board having excellent surface smoothness as a wood base material has the effect of giving a good decorative surface when applying a cosmetic material to the surface by applying a cosmetic material or painting, and the adhesiveness is obtained. By using an acrylic resin foam for the layer, the effect that the fine air bubbles perform the so-called sucker function and adhere or adhere to the surface of the base material satisfactorily is obtained. The effect of imparting appropriate cushioning properties as a material to improve walking feeling can be obtained. Therefore, by having a laminated structure of a wood fiber board (wood base material) / cushion material / acrylic resin foam (adhesion layer), it can be well adapted to a base material having unevenness to prevent construction defects such as floating and peeling. In addition to the basic effect of not causing the flooring, a wooden flooring material that satisfies various performances required as a flooring material can be provided.
図１に示される本発明の一実施形態による木質床材１０は、木質基材１１の表面側に化粧材１２が設けられると共に、裏面側にクッション材１３、密着層１４および離型シート１５が順次に設けられてなる。これら各材１１〜１４の接着には、酢酸ビニル系樹脂などからなる接着剤が用いられる。 A wooden flooring material 10 according to an embodiment of the present invention shown in FIG. 1 has a decorative material 12 provided on a front surface side of a wooden base material 11 and a cushion material 13, an adhesive layer 14, and a release sheet 15 provided on a back surface side. They are provided sequentially. An adhesive made of vinyl acetate resin or the like is used for bonding these materials 11 to 14.
木質基材１１は、合板、ＬＶＬ、無垢材、集成材、ＭＤＦなどの木質繊維板、パーティクルボードその他の木質板またはこれらの一または二以上の複合板を任意に用いることができるが、厚さが０．８〜２．０ｍｍであるものを用いる。木質基材１１の厚さが０．８ｍｍ未満であると、割れや欠けが生じやすく耐久性が低下し、２．０ｍｍを超えると、カッターなどで切断することが困難になると共に、表面に不陸（最大±３ｍｍ程度）がある下地材に木質床材１０を施工したときに、この不陸に馴染むことができず、浮きや剥がれなどの施工不良が起きやすくなる（詳しくは表１を参照して後述する）。 The wood substrate 11 may be plywood, LVL, solid wood, glued laminated wood, wood fiber board such as MDF, particle board, other wood board, or one or more of these composite boards. Is 0.8 to 2.0 mm. If the thickness of the wooden base material 11 is less than 0.8 mm, cracks and chips are likely to occur, and the durability is reduced. If the thickness exceeds 2.0 mm, it becomes difficult to cut with a cutter or the like, and the surface becomes uneven. When the wooden flooring material 10 is applied to a base material having a land (up to about ± 3 mm), the wooden flooring material 10 cannot be adapted to the uneven land, and the construction failure such as floating or peeling is likely to occur (see Table 1 for details). And will be described later).
また、木質基材１１は、曲げ剛性が５×１０４〜５０×１０４Ｎ・ｍｍ２である。曲げ剛性が５×１０４Ｎ・ｍｍ２未満であると、撓みすぎて取り回しが悪くなり、５０×１０４Ｎ・ｍｍ２を超えると、ほとんど撓まないものとなってしまい、表面に不陸（最大±３ｍｍ程度）がある下地材に木質床材１０を施工したときに、この不陸に馴染むことができず、浮きや剥がれなどの施工不良が起きやすくなる。 In addition, the wooden base material 11 has a bending rigidity of 5 × 10 4 to 50 × 10 4 N · mm 2 . If the bending stiffness is less than 5 × 10 4 N · mm 2 , it will bend too much and the handling will be poor. If it exceeds 50 × 10 4 N · mm 2 , it will hardly bend and the surface will be uneven. When the wooden flooring material 10 is applied to a base material having a maximum (approximately ± 3 mm), the wooden flooring material 10 cannot be adapted to the unevenness, and construction failure such as floating or peeling is likely to occur.
化粧材１２は、木質基材１１の表面に設けて木質床材１０に所望の化粧面を与えることができるものであれば特に限定されないが、オレフィンなどからなる樹脂シートや化粧紙などを好適に用いることができる。 The decorative material 12 is not particularly limited as long as it can be provided on the surface of the wooden base material 11 and can give a desired decorative surface to the wooden flooring material 10, but a resin sheet made of olefin or the like or a decorative paper is preferably used. Can be used.
クッション材１３は、木質基材１１の裏面に設けて木質床材１０に所望のクッション性を与えて歩行感や遮音性、断熱性などを良好にすることができるものであれば特に限定されないが、一例としてポリエチレン発泡体が好適に用いられる。あるいは、エチレン酢酸ビニル共重合体、塩化ビニル、ポリウレタン、ポリオレフィンなどの合成樹脂発泡体からなるクッション材１３を用いても良い。 The cushioning material 13 is not particularly limited as long as it can be provided on the back surface of the wooden base material 11 to give a desired cushioning property to the wooden flooring material 10 to improve walking feeling, sound insulation, heat insulation, and the like. As an example, a polyethylene foam is suitably used. Alternatively, a cushion material 13 made of a synthetic resin foam such as an ethylene-vinyl acetate copolymer, vinyl chloride, polyurethane, or polyolefin may be used.
密着層１４は、木質床材１０を下地材の上に施工（直貼り）したときに下地材の表面に密着ないし吸着する機能を果たすものであれば特に限定されないが、一例としてアクリル系樹脂発泡体（アクリル基を有する高分子化合物からなる樹脂発泡体を広く包含する）が好適に用いられる。より具体的には、クッション材１３の裏面に、アクリル系樹脂発泡体からなるフィルムまたはシートを接着するか、あるいはアクリル系樹脂発泡体を塗布することにより、密着層１４を形成することができる。あるいは、ゴム系またはアクリル系樹脂などからなる粘着剤を木質床材１０の裏面に塗布することによって密着層１４を形成しても良い。特にアクリル系樹脂発泡体からなる密着層１４はその全般に亘って微細な気泡を有するので、木質基材１１の裏面に設けられた密着層１４の裏面側に露出する微細な気泡がいわゆる吸盤作用を果たして下地材表面に良好に密着ないし吸着する。 The adhesion layer 14 is not particularly limited as long as it has a function of adhering to or adsorbing to the surface of the base material when the wooden floor material 10 is applied (directly attached) to the base material. (A resin foam made of a polymer compound having an acryl group is widely included) is preferably used. More specifically, the adhesion layer 14 can be formed by bonding a film or sheet made of an acrylic resin foam to the back surface of the cushion material 13 or applying an acrylic resin foam. Alternatively, the adhesive layer 14 may be formed by applying a pressure-sensitive adhesive made of a rubber-based or acrylic resin to the back surface of the wooden flooring 10. In particular, since the adhesive layer 14 made of an acrylic resin foam has fine air bubbles over the entirety thereof, the fine air bubbles exposed on the back surface side of the adhesive layer 14 provided on the back surface of the wooden substrate 11 have a so-called sucker action. And adheres or adheres to the surface of the base material satisfactorily.
密着層１４は、平面引張り試験による密着力が０．０８Ｎ／ｍｍ２以上であり、好ましくは０．０８〜０．１８Ｎ／ｍｍ２である。密着力が０．０８Ｎ／ｍｍ２未満であると、表面に不陸（最大±３ｍｍ程度）がある下地材に木質床材１０を施工したときに、この不陸に馴染むことができず、浮きや剥がれなどの施工不良が起きやすくなる。一方、密着力が０．１８Ｎ／ｍｍ２を超えると、下地材２０に対する密着力が強くなりすぎて、一旦下地材２０に木質床材１０を施工してしまうと容易に剥離することができず、リフォームに対応することが困難になる。これらの観点から、平面引張り試験による密着力のより好ましい範囲は０．１０〜０．１５Ｎ／ｍｍ２である。 Adhesion layer 14 is adhesion by plane tensile test 0.08 N / mm 2 or more, preferably 0.08~0.18N / mm 2. If the adhesion is less than 0.08 N / mm 2 , when the wooden flooring 10 is applied to a base material having an uneven surface (maximum of about ± 3 mm) on the surface, the wooden floor material 10 cannot be adapted to the uneven surface and floats. Construction failures such as peeling and peeling are likely to occur. On the other hand, if the adhesion exceeds 0.18 N / mm 2 , the adhesion to the base material 20 becomes too strong, and once the wooden flooring 10 is applied to the base material 20, it cannot be easily separated. , It becomes difficult to respond to reforms. From these viewpoints, a more preferable range of the adhesion by the plane tensile test is 0.10 to 0.15 N / mm 2 .
なお、この密着力は、密着層１４を最裏層に有する積層体を、ＪＩＳ Ｚ ０２３７（粘着テープ・粘着シート試験方法）において被着体として用いられているＳＵＳ３０４ＢＡ鋼板に密着させ、日本農林規格（ＪＡＳ）が定める合板の平面引張り試験に準拠した試験方法に基いて計測したものである。たとえば、図１の木質床材１０と同様に表面側から化粧材１２／木質基材１１／クッション材１３／密着層１４の積層構成を有する木質床材１０の試験体１０’（２０×２０ｍｍ）を用意し、図３に示すように、その表面側（オレフィンシート側）を、シアノアクリレート系接着剤で、上側チャック１６に係合させた専用冶具１７に接着させると共に、試験体１０’の密着層を、下側チャック１８に係合させた被着体１９（ＳＵＳ３０４ＢＡ鋼板）に密着させ、この状態で、上側チャック１６を毎分５８８０Ｎ以下の荷重で上昇させて、最大荷重（試験体１０’が被着体１９から剥がれたときの荷重）の値を密着力とした。 In addition, this adhesion force is obtained by adhering a laminate having the adhesion layer 14 as the backmost layer to a SUS304BA steel plate used as an adherend in JIS Z 0237 (adhesive tape / adhesive sheet test method), according to Japanese Agricultural Standards. It is measured based on a test method based on a plywood plane tensile test defined by (JAS). For example, similarly to the wooden flooring 10 of FIG. 1, a specimen 10 ′ (20 × 20 mm) of the wooden flooring 10 having a laminated structure of the decorative material 12 / the wooden substrate 11 / the cushioning material 13 / the adhesion layer 14 from the surface side from the surface side As shown in FIG. 3, the surface side (the olefin sheet side) is adhered to a special jig 17 engaged with the upper chuck 16 with a cyanoacrylate-based adhesive, and the specimen 10 ′ is brought into close contact. The layer is brought into close contact with the adherend 19 (SUS304BA steel plate) engaged with the lower chuck 18, and in this state, the upper chuck 16 is raised at a load of 5880 N per minute or less to obtain the maximum load (test piece 10 ′). (Load when the sample was peeled off from the adherend 19) was defined as the adhesion.
離型シート１５は、木質床材１０の保管ないし取扱時には密着層１４に密着して容易には剥離せず、且つ、木質床材１０の施工時には手で容易に剥離することができるものであれば特に限定されないが、ポリエステルなどからなる樹脂シートや離型紙などを好適に用いることができる。 The release sheet 15 is a material that can be easily peeled off by hand when the wooden flooring 10 is stored or adhered to the adhesive layer 14 and not easily peeled off when the wooden flooring 10 is stored or handled. Although not particularly limited, a resin sheet or release paper made of polyester or the like can be preferably used.
この木質床材１０を下地材に施工するには、下地材表面に過度の不陸がある場合や下地材表面が平滑でない場合は、必要に応じて下地材の表面に樹脂塗料を塗布または樹脂シートを設けることにより下地材表面をある程度まで平滑ないし平面にした上で、離型シート１５を剥がした木質床材１０の密着層１４を下地材表面に押し付けるようにして直貼りする。下地材は、既設の床材、コンクリート、金属または合成樹脂などであり、表面に±３ｍｍ程度の不陸があっても、木質基材１１の厚さ、木質基材１１の曲げ剛性、密着層１４の密着力についての前記範囲の少なくともいずれか一を満たしていれば、±３ｍｍ程度の不陸に対しても良好に馴染み、浮きや剥がれなどの施工不良を起こさずに施工することができる。 In order to apply the wooden floor material 10 to the base material, if there is excessive unevenness on the surface of the base material or if the surface of the base material is not smooth, a resin paint may be applied to the surface of the base material as necessary. After the surface of the base material is made smooth or flat to some extent by providing a sheet, the adhesive layer 14 of the wooden floor material 10 from which the release sheet 15 has been peeled off is directly pressed so as to be pressed against the surface of the base material. The base material is an existing floor material, concrete, metal, synthetic resin, or the like. Even if the surface has an unevenness of about ± 3 mm, the thickness of the wooden substrate 11, the bending rigidity of the wooden substrate 11, the adhesion layer If at least one of the above ranges for the adhesion force of No. 14 is satisfied, it can be well adapted to irregularities of about ± 3 mm, and can be constructed without causing construction failure such as floating or peeling.
既述した木質基材１１の厚さ範囲は、表面側から、０．１５ｍｍ厚オレフィンシート（化粧材１２）／木質繊維板（木質基材１１）／１．０ｍｍ厚ポリエチレン発泡体（クッション材１３）／０．１ｍｍ厚アクリル系樹脂発泡体（密着層１４）の積層構成を有する木質床材１０において、木質繊維板の厚さを０．５〜３．０ｍｍの範囲内で変えて７種類の試験体（１５０ｍｍ×９１０ｍｍ）を作成し、これらを下地材表面に直貼りして、３つの評価項目により木質床材１０としての適性を総合的に評価して決定したものである。 From the surface side, the thickness range of the wood base material 11 described above is 0.15 mm thick olefin sheet (decorative material 12) / wood fiber board (wood base material 11) /1.0 mm thick polyethylene foam (cushion material 13). ) /0.1 mm thick acrylic resin foam (adhesion layer 14), the wood flooring 10 has a laminated structure, and the thickness of the wood fiber board is changed in the range of 0.5 to 3.0 mm to obtain seven types of wood flooring. Test specimens (150 mm x 910 mm) were prepared, these were directly adhered to the surface of the base material, and the suitability as the wooden flooring material 10 was comprehensively evaluated and determined by three evaluation items.
図４（ａ）および（ｂ）を参照して具体的に説明すると、下地材２０の表面に高さ３ｍｍの突部２１を形成し、この突部２１の頂点２１ａが、木質床材１０の長辺端部および短辺端部から３０ｍｍの位置Ｐに位置するように、木質床材１０を敷設した。また、図４（ｃ）に示すように、下地材２０に深さ３ｍｍの凹部２２を形成し、この凹部２２の最深部２２ａが、木質床材１０の長辺端部および短辺端部から３０ｍｍの位置Ｐに位置するように、木質床材１０を敷設した。下地材２０に形成した突部２１および凹部２２は、下地材２０の不陸を疑似的に表現したものである。 More specifically, referring to FIGS. 4A and 4B, a protrusion 21 having a height of 3 mm is formed on the surface of the base material 20, and the vertex 21 a of the protrusion 21 is The wooden flooring 10 was laid so as to be located at a position P 30 mm from the long side end and the short side end. As shown in FIG. 4C, a concave portion 22 having a depth of 3 mm is formed in the base material 20, and the deepest portion 22 a of the concave portion 22 extends from the long side end and the short side end of the wooden flooring 10. The wooden flooring 10 was laid so as to be located at a position P of 30 mm. The protrusions 21 and the recesses 22 formed in the base material 20 represent the unevenness of the base material 20 in a pseudo manner.
「不陸への馴染みやすさ」は、上記のようにして突部２１または凹部２２を形成した下地材２０に木質床材１０の各サンプルを直貼りしたときに、木質床材１０に剥がれが生じるか否かを評価したものであり、〇は施工後２４時間を経過しても剥がれが生じない、△は施工後数時間で剥がれる、×は施工直後に剥がれることを示す。 "Easiness of adaptation to irregularities" means that when each sample of the wooden flooring material 10 is directly attached to the base material 20 on which the protrusion 21 or the concave portion 22 is formed as described above, the wooden flooring material 10 is peeled off. The evaluation was performed to determine whether or not it occurred. 〇 indicates that no peeling occurred 24 hours after construction, △ indicates peeling several hours after construction, and X indicates peeling immediately after construction.
「切断性」とは、一般的なハサミを用いて木質床材１０を切断できるか否かを評価したものであり、〇は容易に切断できる、△は少し切断しにくい、×は切断できないことを示す。 "Cutability" is an evaluation of whether or not the wooden flooring material 10 can be cut using general scissors. 〇 indicates that the wooden flooring material 10 can be easily cut, △ indicates that it is slightly difficult to cut, and X indicates that it cannot be cut. Is shown.
「木質基材の耐久性」とは、木質床材１０の施工時における木質基材１１の破損の有無を評価したものであり、〇は破損しない、×は破損したことを示す。 The “durability of the wooden base material” is an evaluation of the presence or absence of damage to the wooden base material 11 during construction of the wooden flooring material 10, Δ indicates no damage, and X indicates damage.
「総評」は、これら３つの評価項目における評価に一つも×がない場合を木質床材１０としての適性に優れているものを〇とし、やや適性に劣るものを△、適性がないものを×とした。 The “overall evaluation” is evaluated as “〇” when the evaluation in these three evaluation items does not have any “×”, that is excellent in suitability as the wooden flooring material 10, “△” when the evaluation is slightly poor, and “×” when the evaluation is not appropriate. And
表１に示す結果から、木質基材１１の厚さが０．８〜２．０ｍｍの範囲（実施例１〜４）であれば、耐久性を確保しつつ、切断性が概ね良好であり、また、±３ｍｍまでの不陸にも良好に馴染んで、施工後２４時間を経過しても剥がれることがなく、木質床材１０として優れた適性を有することを確認した。これに対し、木質基材１１の厚さが０．５ｍｍの場合（比較例１）は耐久性が劣り、２．５ｍｍおよび３．０ｍｍの場合（比較例２，３）は不陸に馴染むことができず、切断性にも劣ることから、いずれも木質床材１０には適さないものであることを確認した。また、独立した突部２１、凹部２２ではなく、突部２１と凹部２２が連続して波条凹凸として形成されている場合は、その突部２１の頂点２１ａと凹部２２の最深部２２ａとの高低差が３ｍｍ程度またはそれ以下であり、且つ、突部２１の頂点２１ａまたは凹部２２の最深部２２ａが木質床材１０の長辺端部および短辺端部から３０ｍｍ程度またはそれ以上離れて位置するように施工したときに、木質基材１１の厚さが０．８〜２．０ｍｍであることを条件として、上記実施例１〜４と同様に密着層１４が下地材２０の不陸表面に良く馴染んで剥がれが生じにくいものであることを確認した。 From the results shown in Table 1, if the thickness of the wood substrate 11 is in the range of 0.8 to 2.0 mm (Examples 1 to 4), the cutability is generally good while ensuring the durability, In addition, it was well adapted to irregularities up to ± 3 mm, did not peel off even after 24 hours from the construction, and was confirmed to have excellent suitability as the wooden flooring material 10. On the other hand, when the thickness of the wooden base material 11 is 0.5 mm (Comparative Example 1), the durability is inferior, and when the thickness is 2.5 mm and 3.0 mm (Comparative Examples 2 and 3), it adapts to the unevenness. It was confirmed that none of them were suitable for the wooden flooring material 10 because of poor cutting performance and poor cutting performance. When the protrusion 21 and the recess 22 are formed as continuous wavy irregularities instead of the independent protrusion 21 and the recess 22, the peak 21 a of the protrusion 21 and the deepest portion 22 a of the recess 22 are formed. The height difference is about 3 mm or less, and the apex 21 a of the protrusion 21 or the deepest part 22 a of the recess 22 is located about 30 mm or more away from the long side end and the short side end of the wooden flooring 10. When the construction is performed so that the thickness of the wooden base material 11 is 0.8 to 2.0 mm, the adhesion layer 14 is formed on the uneven surface of the base material 20 in the same manner as in Examples 1 to 4 above. It was confirmed that the material was well adapted to water and hardly peeled off.
なお、図４における下地材２０の突部２１および凹部２２については様々な形状や寸法（幅、長さ）のものを作成して同様の試験を行ったが、その形状や寸法にかかわらず、突部２１の高さまたは凹部２２の深さが３ｍｍ程度またはそれ以下であり、且つ、突部２１の頂点２１ａまたは凹部２２の最深部２２ａが木質床材１０の長辺端部および短辺端部から３０ｍｍ程度またはそれ以上離れて位置するように施工した場合には、木質基材１１の厚さが０．８〜２．０ｍｍである実施例１〜４は下地材２０の突部２１／凹部２２に良く馴染んで剥がれが生じにくいものであることを確認した。 The protrusions 21 and the recesses 22 of the base material 20 in FIG. 4 were prepared in various shapes and dimensions (width and length) and subjected to the same test, but regardless of the shapes and dimensions, The height of the protrusion 21 or the depth of the recess 22 is about 3 mm or less, and the vertex 21a of the protrusion 21 or the deepest portion 22a of the recess 22 is the long side end and the short side end of the wooden flooring 10. In the case where the wooden base material 11 is constructed so as to be located at a distance of about 30 mm or more from the base, the thickness of the wooden base material 11 is 0.8 to 2.0 mm. It was confirmed that the material was well adapted to the recess 22 and hardly peeled off.
以上に本発明について図示実施形態に基いて詳述したが、本発明はこれに限定されず、特許請求の範囲の記載に基いて画定される発明の範囲内において多種多様に変形ないし変更して実施可能である。たとえば、木質床材１０として特にクッション性が要求されない場合は、クッション材１３を省略した積層構成の木質床材１０としても良い（図２）。なお、離型シートは、木質床材の施工前に密着層が保管時の床面や下方に堆積された別の木質床材などに密着することを防止するものであり、木質床材を下地材に施工する際にはこれを剥がして用いるものであるから、本発明の木質床材として必須の構成要素ではない。 Although the present invention has been described in detail with reference to the illustrated embodiments, the present invention is not limited thereto, and may be variously modified or changed within the scope of the invention defined based on the description of the claims. It is feasible. For example, when cushioning properties are not particularly required for the wooden flooring material 10, the wooden flooring material 10 may be a laminated wooden flooring material 10 in which the cushioning material 13 is omitted (FIG. 2). The release sheet is used to prevent the adhesion layer from adhering to the floor surface at the time of storage or another wooden floor material deposited below before the construction of the wooden floor material. It is not used as an essential component of the wood flooring of the present invention because it is used by peeling it off when it is applied to the wood.
１０ 木質床材
１０’木質床材の試験体
１１ 木質基材
１２ 化粧材
１３ クッション材
１４ 密着層
１５ 離型シート
１６ 上側チャック
１７ 専用冶具
１８ 下側チャック
１９ 被着体
２０ 下地材
２１ 突部
２２ 凹部
REFERENCE SIGNS LIST 10 Wooden floor material 10 ′ Wooden floor material specimen 11 Wooden base material 12 Decorative material 13 Cushion material 14 Adhesive layer 15 Release sheet 16 Upper chuck 17 Dedicated jig 18 Lower chuck 19 Substrate 20 Base material 21 Projecting part 22 Recess
Claims (6)
A wooden flooring material in which a decorative material is provided on the front side of a wooden base material and an adhesive layer is provided on the back side, and the adhesive strength of the adhesive layer in a plane tensile test is 0.08 N / mm 2 or more. Wooden flooring characterized by the following.
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|---|---|---|---|---|
| JPH0610488U (en) * | 1992-07-16 | 1994-02-10 | 日本製紙株式会社 | Wood soundproof flooring |
| JPH0996089A (en) * | 1995-09-29 | 1997-04-08 | Sekisui Chem Co Ltd | Floor material |
| JP2004316290A (en) * | 2003-04-17 | 2004-11-11 | Toppan Printing Co Ltd | Floor board |
| JP2013067163A (en) * | 2011-08-10 | 2013-04-18 | Bando Chemical Industries Ltd | Floor sheet for vehicle, vehicle floor structure, and method for executing the vehicle floor structure |
| JP2015028256A (en) * | 2013-07-30 | 2015-02-12 | 東リ株式会社 | Floor material with release sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610488U (en) * | 1992-07-16 | 1994-02-10 | 日本製紙株式会社 | Wood soundproof flooring |
| JPH0996089A (en) * | 1995-09-29 | 1997-04-08 | Sekisui Chem Co Ltd | Floor material |
| JP2004316290A (en) * | 2003-04-17 | 2004-11-11 | Toppan Printing Co Ltd | Floor board |
| JP2013067163A (en) * | 2011-08-10 | 2013-04-18 | Bando Chemical Industries Ltd | Floor sheet for vehicle, vehicle floor structure, and method for executing the vehicle floor structure |
| JP2015028256A (en) * | 2013-07-30 | 2015-02-12 | 東リ株式会社 | Floor material with release sheet |
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