JP7075328B2 - Lumber-like flooring material and floor structure - Google Patents

Lumber-like flooring material and floor structure Download PDF

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JP7075328B2
JP7075328B2 JP2018197773A JP2018197773A JP7075328B2 JP 7075328 B2 JP7075328 B2 JP 7075328B2 JP 2018197773 A JP2018197773 A JP 2018197773A JP 2018197773 A JP2018197773 A JP 2018197773A JP 7075328 B2 JP7075328 B2 JP 7075328B2
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JP2020063643A (en
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恭佑 町永
優樹 森岡
智子 田中
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東リ株式会社
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Description

本発明は、木目調の外観を有する床材及びそれを敷設した床面構造に関する。 The present invention relates to a floor material having a wood grain appearance and a floor structure on which the floor material is laid.

従来、無垢の木材ではなく、天然木の木目模様を再現した床材が知られている。
このような木目調床材は、表面に凹凸を形成することにより、木目模様に立体感を持たせたものが知られている。例えば、特許文献1には、基材の表面に模様印刷を施した模様印刷シートを貼着してなる建築板において、該模様印刷シートの模様が耐摩耗性の高いインクと耐摩耗性の低いインクとで形成されるとともに、耐摩耗性の低いインク部分がブラシ等で適度に摩耗除去されて該模様印刷シートの表面に木目調の凹凸模様が形成されている建築板が開示されている。かかる建築板は、凸部が木目の筋の流れ模様を成している。
Conventionally, flooring materials that reproduce the grain pattern of natural wood instead of solid wood are known.
It is known that such a wood grain flooring material gives a three-dimensional effect to a wood grain pattern by forming irregularities on the surface. For example, in Patent Document 1, in a building board in which a pattern printing sheet having a pattern printed on the surface of a base material is attached, the pattern of the pattern printing sheet has high wear resistance ink and low wear resistance. There is disclosed a building board which is formed of ink and whose ink portion having low wear resistance is appropriately worn and removed by a brush or the like to form a wood grain uneven pattern on the surface of the pattern printing sheet. In such a building board, the convex portion forms a flow pattern of wood grain.

特開2013-234540号公報Japanese Unexamined Patent Publication No. 2013-234540

しかしながら、特許文献1の建築板は凸部が流れ方向に連続した長状凸部であるため、その長状凸部の間(つまり、凹部)に、ゴミが溜まり易い上、そのゴミを清掃することが困難である。特に、屋外や半屋外の床面に木目調床材を敷設している場合、木目調床材の表面を箒で掃いて清掃するときに、かかる木目調床材にあってはその凹凸によってゴミを掃き出すことが困難となり、特に長状凸部の流れ方向に直交する方向に掃き出すことが困難である。
一方、前記長状凸部の突出高さを可及的に小さくすると、清掃し易くなるが、木目の立体感が消失する。
However, since the building board of Patent Document 1 is a long convex portion in which the convex portion is continuous in the flow direction, dust tends to collect between the long convex portions (that is, the concave portion), and the dust is cleaned. Is difficult. In particular, when the wood grain flooring material is laid on the outdoor or semi-outdoor floor surface, when the surface of the wood grain flooring material is swept with a broom and cleaned, the unevenness of the wood grain flooring material causes dust. It is difficult to sweep out, and in particular, it is difficult to sweep out in the direction orthogonal to the flow direction of the elongated convex portion.
On the other hand, if the protruding height of the elongated convex portion is made as small as possible, it becomes easier to clean, but the three-dimensional appearance of the wood grain disappears.

本発明の目的は、清掃性に優れた木目調床材及びそれを敷設した床面構造を提供することである。 An object of the present invention is to provide a wood grain flooring material having excellent cleanability and a floor structure on which the wood grain flooring material is laid.

本発明は、木目の筋形状を成す複数の凸列を有し、樹脂を主体とする木目調床材であって、前記凸列が、木目の流れ方向において、途切れ部を有して断続的に形成された複数の凸部から構成されており、前記凸列を構成する複数の凸部の一部又は全部が、突出高さの大きい山部位と、前記山部位よりも突出高さが小さい谷部位と、を有し、前記山部位のうち最も突出高さの大きい部位が、高さ0.2mm~0.8mmであり、前記谷部位の突出高さが、前記最も突出高さの大きい部位の高さの0.2倍以上0.9倍未満であるThe present invention is a wood grain flooring material having a plurality of convex rows forming a streak shape of wood grain and mainly made of resin, and the convex rows have intermittent portions in the flow direction of the wood grain and are intermittent. It is composed of a plurality of convex portions formed in , and a part or all of the plurality of convex portions constituting the convex row has a mountain portion having a large protrusion height and a mountain portion having a smaller protrusion height than the mountain portion. It has a valley portion, and the portion having the largest protrusion height among the mountain portions has a height of 0.2 mm to 0.8 mm, and the protrusion height of the valley portion has the largest protrusion height. It is 0.2 times or more and less than 0.9 times the height of the site .

本発明の好ましい木目調床材は、前記凸列を構成する複数の凸部の一部又は全部が、平面視で、幅狭部位と、前記幅狭部位よりも幅の大きい幅広部位と、を有し、前記山部位が、前記幅広部位に形成され、且つ、前記谷部位が、前記幅狭部位に形成されている
本発明の好ましい木目調床材は、前記複数の凸列が、木目の流れ方向と略直交する方向である幅方向において並列されており、1つの凸列の凸部の谷部位のうち70%以上の谷部位が、当該凸列に隣接する凸列の凸部の谷部位と幅方向において揃っている
本発明の好ましい木目調床材は、前記凸列が、2つ以上の山部位と前記山部位の間の谷部位とを有する凸部を含む
In the preferred wood-grain flooring material of the present invention, a part or all of the plurality of convex portions constituting the convex row has a narrow portion and a wide portion having a width larger than the narrow portion in a plan view. The mountain portion is formed in the wide portion, and the valley portion is formed in the narrow portion .
In the preferred wood grain flooring material of the present invention, the plurality of convex rows are arranged in parallel in the width direction which is a direction substantially orthogonal to the flow direction of the wood grain, and 70% of the valley portions of the convex portions of one convex row. The above valley portions are aligned with the valley portions of the convex portions of the convex row adjacent to the convex row in the width direction .
The preferred wood grain flooring material of the present invention includes a convex portion in which the convex row has two or more mountain portions and a valley portion between the mountain portions .

本発明の別の局面によれば、床面構造を提供する。
本発明の床面構造は、木目模様が表出された床材が敷設された屋内床面と、前記屋内床面に隣接した屋外又は半屋外床面と、を有し、上記いずれかの木目調床材が、前記屋内床面に敷設された床材と木目の流れ方向を一致させて、前記屋外又は半屋外床面に敷設されている。
According to another aspect of the present invention, a floor structure is provided.
The floor surface structure of the present invention has an indoor floor surface on which a floor material having a wood grain pattern is laid, and an outdoor or semi-outdoor floor surface adjacent to the indoor floor surface, and any of the above wood grain. The floor conditioning material is laid on the outdoor or semi-outdoor floor surface so as to match the flow direction of the wood grain with the floor material laid on the indoor floor surface.

本発明の木目調床材は、天然木に近い外観を有し、さらに、清掃性に優れているので、綺麗に清掃できる上、清掃作業の短縮化を図ることができる。 The wood-grained flooring material of the present invention has an appearance similar to that of natural wood and is excellent in cleanability, so that it can be cleaned cleanly and the cleaning work can be shortened.

本発明の木目調床材の平面図。The plan view of the wood grain flooring material of this invention. 図1のII-II線で切断した断面図。FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 図1の四角囲いIII部を拡大し且つ模式的に表した平面図(木目調床材の表面の凸列を拡大して表した模式的な平面図)。A plan view in which the square enclosure III part of FIG. 1 is enlarged and schematically shown (a schematic plan view in which the convex rows on the surface of the wood grain flooring material are enlarged and shown). 図3の丸囲いIV部を更に拡大し且つ模式的に表した平面図。The plan view which further enlarged and schematically represented the circle IV part of FIG. 図4のV-V線で切断した端面図。なお、端面図は、切断面のみを表した図である。The end view cut by the VV line of FIG. The end view is a view showing only the cut surface. 図4のVI-VI線で切断した端面図。FIG. 4 is an end view cut along the VI-VI line of FIG. 図4のVII-VII線で切断した端面図。FIG. 4 is an end view cut along the line VII-VII of FIG. 本発明の床面構造の平面図。The plan view of the floor structure of this invention. 本発明の木目調床材の表面を清掃した際の状況を説明するための参考平面図。The reference plan view for demonstrating the situation when the surface of the wood grain flooring material of this invention was cleaned. 実施例で作製した木目調床材の表面の写真図。The photograph figure of the surface of the wood grain flooring material produced in an Example.

以下、本発明について、適宜図面を参照しつつ説明する。
本明細書において、ある層の「表面」は、木目調床材を敷設する床面から遠い側の面を指し、「裏面」は、その反対側(床材を敷設する床面に近い側)の面を指す。
本明細書において、「~」で表される数値範囲は、「~」の前後の数値を下限値及び上限値として含む数値範囲を意味する。複数の下限値と複数の上限値が別個に記載されている場合、任意の下限値と任意の上限値を選択し、「~」で結んだ範囲とすることができるものとする。
また、各図における、厚み及び大きさなどの寸法は、実際のものとは異なっていることに留意されたい。
Hereinafter, the present invention will be described with reference to the drawings as appropriate.
In the present specification, the "front surface" of a layer refers to the surface far from the floor surface on which the wood grain flooring material is laid, and the "back surface" is the opposite side (the side close to the floor surface on which the flooring material is laid). Point to the face of.
In the present specification, the numerical range represented by "-" means a numerical range including the numerical values before and after "-" as the lower limit value and the upper limit value. When a plurality of lower limit values and a plurality of upper limit values are described separately, an arbitrary lower limit value and an arbitrary upper limit value can be selected and the range can be connected by "~".
Also, please note that the dimensions such as thickness and size in each figure are different from the actual ones.

[木目調床材の概要]
図1は、本発明の木目調床材1の平面図であり、図2は、その断面図である。ただし、図1及び図2では、木目調床材1の表面に形成された凸列を図示していない。
図1に示すように、木目調床材1は、平面視長尺帯状に形成されている。本明細書において、長尺帯状は、長手方向の長さが短手方向の長さに比して十分に長い長方形状であり、例えば、長手方向の長さが短手方向の長さの2倍以上、好ましくは4倍以上である。長尺帯状の木目調床材1は、通常、ロールに巻かれて保管・運搬に供され、施工現場において、所望の形状に裁断して使用される。もっとも、本発明の木目調床材1は、長尺帯状のシートに限られず、平面視正方形状などの枚葉状に形成された、いわゆるタイル形態であってもよい(図示せず)。
[Overview of wood flooring]
FIG. 1 is a plan view of the wood grain flooring material 1 of the present invention, and FIG. 2 is a cross-sectional view thereof. However, FIGS. 1 and 2 do not show the convex rows formed on the surface of the wood grain flooring material 1.
As shown in FIG. 1, the wood grain flooring material 1 is formed in the shape of a long strip in a plan view. In the present specification, the long strip is a rectangular shape whose length in the longitudinal direction is sufficiently longer than the length in the lateral direction, and for example, the length in the longitudinal direction is the length in the lateral direction 2. It is twice or more, preferably four times or more. The long strip-shaped wood-grained flooring material 1 is usually wrapped in a roll and used for storage and transportation, and is cut into a desired shape and used at a construction site. However, the wood-grain flooring material 1 of the present invention is not limited to a long strip-shaped sheet, and may be in a so-called tile form formed in a single-wafer shape such as a square shape in a plan view (not shown).

前記長尺帯状の木目調床材1は、例えば、短手方向長さが800mm~4000mmのような所定幅で所定長さに形成されたものであり、その長手方向長さは、例えば、2m~300mである。枚葉状に形成される木目調床材1は、例えば、その縦横がそれぞれ100mm~4000mmである。前記枚葉状の木目調床材1は、一辺の長さが50cmの平面視正方形状のものが一般的であるが、縦10cm×横90cmの長方形状、六角形状などでもよく、大きさや形状は特に限定されない。 The long strip-shaped wood-grain flooring material 1 is formed to have a predetermined length such as, for example, a length in the lateral direction of 800 mm to 4000 mm, and the length in the longitudinal direction thereof is, for example, 2 m. It is ~ 300m. The lumber-like flooring material 1 formed in a single-leaf shape has, for example, 100 mm to 4000 mm in length and width, respectively. The single-leafed wood-grain flooring material 1 is generally a square-shaped flooring material 1 having a side length of 50 cm, but may be rectangular or hexagonal with a length of 10 cm and a width of 90 cm. Not particularly limited.

本発明の木目調床材1は、熱可塑性樹脂などの樹脂を主体として構成され、好ましくは、柔軟性を有する。例えば、本発明の木目調床材1は、直径15cmの芯材の周囲にロール状に巻き付けることができるほどの柔軟性を有する。もっとも、本発明の木目調床材1は、柔軟性を有さず、比較的硬質のものであってもよい。
本発明の木目調床材1の厚みは、適宜設定できるが、例えば、1.5mm~5mmであり、好ましくは、2mm~4mmである。なお、前記厚みは、床材1の最大厚み(凸部の山部位が形成された部分の厚み)を意味する。
The wood-grain flooring material 1 of the present invention is mainly composed of a resin such as a thermoplastic resin, and preferably has flexibility. For example, the wood grain flooring material 1 of the present invention has enough flexibility to be wound around a core material having a diameter of 15 cm in a roll shape. However, the wood-grain flooring material 1 of the present invention does not have flexibility and may be relatively hard.
The thickness of the wood grain flooring material 1 of the present invention can be appropriately set, but is, for example, 1.5 mm to 5 mm, preferably 2 mm to 4 mm. The thickness means the maximum thickness of the floor material 1 (the thickness of the portion where the mountain portion of the convex portion is formed).

[木目調床材の層構成]
本発明の木目調床材1の層構成は、特に限定されないが、例えば、図2に示すように、表面側から順に、表面樹脂層2と、本体層4と、を有し、好ましくは、表面側から順に、表面樹脂層2と、化粧層3と、本体層4と、を有する。
必要に応じて、表面樹脂層2の表面に、保護層(図示せず)が形成されていてもよい。
[Layer composition of wood grain flooring]
The layer structure of the wood grain flooring material 1 of the present invention is not particularly limited, but for example, as shown in FIG. 2, it has a surface resin layer 2 and a main body layer 4 in order from the surface side, and is preferable. It has a surface resin layer 2, a decorative layer 3, and a main body layer 4 in this order from the surface side.
If necessary, a protective layer (not shown) may be formed on the surface of the surface resin layer 2.

表面樹脂層2は、複数の凸部からなる凸列が表出された層である。凸列については後述する。
表面樹脂層2は、発泡されていてもよく、発泡されていなくてもよい。綺麗な木目の筋形状を表出できることから、表面樹脂層2は発泡されていない非発泡体であることが好ましい。
表面樹脂層2は、透明(無色透明又は有色透明)でもよく、不透明でもよい。裏面側に化粧層3が設けられる場合にはその化粧層3を透視できるようにするため、表面樹脂層2は、透明であることが好ましく、無色透明であることがより好ましい。
The surface resin layer 2 is a layer in which a convex row composed of a plurality of convex portions is expressed. The convex column will be described later.
The surface resin layer 2 may or may not be foamed. It is preferable that the surface resin layer 2 is a non-foamed material that is not foamed, because a beautiful wood grain streak shape can be expressed.
The surface resin layer 2 may be transparent (colorless transparent or colored transparent) or opaque. When the decorative layer 3 is provided on the back surface side, the surface resin layer 2 is preferably transparent, and more preferably colorless and transparent, so that the decorative layer 3 can be seen through.

表面樹脂層2は、塩化ビニルや塩化ビニル-酢酸ビニル共重合体などの塩化ビニル系樹脂;ポリオレフィン系樹脂;ウレタン系樹脂;エチレン-酢酸ビニル共重合体などの酢酸ビニル系樹脂;エチレン-メタクリレート樹脂などのアクリル系樹脂;ポリアミド系樹脂;エステル系樹脂;オレフィン系エラストマー、スチレン系エラストマーなどの各種エラストマーなどの熱可塑性樹脂から形成される。これらは、1種単独で、又は2種以上を併用できる。化粧層3と強固に接合することから、表面樹脂層2は、塩化ビニル系樹脂を主成分とする樹脂から形成されていることが好ましい。前記塩化ビニル系樹脂は、ペースト塩化ビニル樹脂、又は、サスペンジョン塩化ビニル樹脂でもよく、或いは、これらの混合物であってもよい。
表面樹脂層2の厚みは、特に限定されず、例えば、0.1mm~1mmであり、好ましくは、0.15mm~0.5mmである。なお、前記厚みは、表面樹脂層2の最大厚み(凸部の山部位が形成された部分の厚み)を意味する。
The surface resin layer 2 is a vinyl chloride resin such as vinyl chloride or a vinyl chloride-vinyl acetate copolymer; a polyolefin resin; a urethane resin; a vinyl acetate resin such as an ethylene-vinyl acetate copolymer; an ethylene-methacrylate resin. Acrylic resin such as; polyamide resin; ester resin; olefin-based elastomer, various elastomers such as styrene-based elastomer, and other thermoplastic resins. These can be used alone or in combination of two or more. The surface resin layer 2 is preferably formed of a resin containing a vinyl chloride resin as a main component, because it is firmly bonded to the decorative layer 3. The vinyl chloride resin may be a paste vinyl chloride resin, a suspension vinyl chloride resin, or a mixture thereof.
The thickness of the surface resin layer 2 is not particularly limited, and is, for example, 0.1 mm to 1 mm, preferably 0.15 mm to 0.5 mm. The thickness means the maximum thickness of the surface resin layer 2 (the thickness of the portion where the mountain portion of the convex portion is formed).

表面樹脂層2の表面に保護層が形成される場合、保護層は、木目調床材1の最表面を成し、木目調床材1に耐摩耗性及び耐傷付き性を付与する。保護層も、透明又は不透明でもよいが、化粧層3のデザインを透視できるようにするため、透明であることが好ましく、無色透明であることがより好ましい。保護層は、例えば、紫外線硬化性樹脂などの電離放射線硬化性樹脂、熱硬化性樹脂、非電離放射線によって硬化する樹脂などから形成される。保護層の厚みは、特に限定されないが、例えば、1μm~100μmであり、好ましくは、10μm~50μmである。 When the protective layer is formed on the surface of the surface resin layer 2, the protective layer forms the outermost surface of the wood grain flooring material 1 and imparts wear resistance and scratch resistance to the wood grain flooring material 1. The protective layer may also be transparent or opaque, but is preferably transparent, more preferably colorless and transparent, so that the design of the decorative layer 3 can be seen through. The protective layer is formed of, for example, an ionizing radiation curable resin such as an ultraviolet curable resin, a thermosetting resin, or a resin that is cured by non-ionizing radiation. The thickness of the protective layer is not particularly limited, but is, for example, 1 μm to 100 μm, preferably 10 μm to 50 μm.

化粧層3は、木目調床材1にデザインを付与する層である。化粧層3としては、後述する凸列と相まって木目模様を表出できるようなデザインが採用される。印刷層3の模様は、凸列の筋形状と完全に一致していてもよく、或いは、完全に一致していなくてもよい。
前記化粧層3は、意匠印刷シート、意匠性が付与された熱可塑性樹脂層、転写層などが挙げられる。もっとも、化粧層3は、これら例示の層に限られず、デザインを表すことができる層であればその他任意のものを用いることができる。
The decorative layer 3 is a layer that gives a design to the wood grain flooring material 1. As the decorative layer 3, a design that can express a wood grain pattern in combination with the convex rows described later is adopted. The pattern of the print layer 3 may or may not completely match the streaks of the convex rows.
Examples of the decorative layer 3 include a design printing sheet, a thermoplastic resin layer to which design properties are imparted, a transfer layer, and the like. However, the decorative layer 3 is not limited to these exemplary layers, and any other layer that can represent the design can be used.

前記意匠印刷シートは、予め意匠印刷を施したシートであり、例えば、塩化ビニル系樹脂シートに意匠印刷が施されたものなどを用いることができる。前記意匠印刷としては、グラビア印刷やロータリー印刷などが挙げられる。ロータリー印刷は、ペースト状塩化ビニル樹脂に、顔料を添加したインクを用いて印刷するので、耐候性に優れ、特に好ましい。意匠性が付与された熱可塑性樹脂層は、そのものが意匠となり得る層であり、例えば、着色剤が混合された樹脂の色彩及びその混ざり方によって意匠性が付与された層や、樹脂チップが混合され、その樹脂チップの色彩、形状、分散の仕方などによって意匠性が付与されている層などが挙げられる。前記転写層は、印刷インキを剥離紙などの基材上に印刷して固化させた後に、固化した印刷インキを剥離して形成した転写フィルムから構成される。
前記化粧層3の厚みは、特に限定されないが、例えば、0.05mm~1mmであり、好ましくは0.1mm~0.5mmである。
The design printing sheet is a sheet on which design printing has been performed in advance, and for example, a vinyl chloride resin sheet on which design printing has been performed can be used. Examples of the design printing include gravure printing and rotary printing. Rotary printing is particularly preferable because it has excellent weather resistance because it prints using an ink obtained by adding a pigment to a paste-like vinyl chloride resin. The thermoplastic resin layer to which the design property is imparted is a layer that can be a design itself. However, there is a layer in which the resin chip is given a design property depending on the color, shape, dispersion method, and the like. The transfer layer is composed of a transfer film formed by printing a printing ink on a substrate such as a release paper and solidifying it, and then peeling off the solidified printing ink.
The thickness of the decorative layer 3 is not particularly limited, but is, for example, 0.05 mm to 1 mm, preferably 0.1 mm to 0.5 mm.

本体層4は、繊維補強層41及び裏面樹脂層42を有する。
繊維補強層41は、経時的な収縮や膨張による木目調床材1の寸法変化を抑制するための層である。
繊維補強層41としては、繊維を含む不織布、繊維を織った又は編んだ織布などが挙げられる。繊維は、特に限定されず、ガラス繊維やカーボン繊維などの無機繊維、ポリエステル繊維などの剛性繊維、羊毛や綿などの天然繊維などの繊維が挙げられる。強度が高く、温度による寸法変動が少ない点から、繊維補強層41は、ガラス繊維を含むガラス不織布又はガラス繊維を含むガラス織布を用いることが好ましく、ガラス不織布を用いることがより好ましい。
The main body layer 4 has a fiber reinforcing layer 41 and a back surface resin layer 42.
The fiber reinforcing layer 41 is a layer for suppressing a dimensional change of the wood grain flooring material 1 due to shrinkage or expansion over time.
Examples of the fiber reinforcing layer 41 include a non-woven fabric containing fibers, a woven fabric in which fibers are woven or knitted, and the like. The fiber is not particularly limited, and examples thereof include inorganic fiber such as glass fiber and carbon fiber, rigid fiber such as polyester fiber, and natural fiber such as wool and cotton. From the viewpoint of high strength and little dimensional fluctuation due to temperature, it is preferable to use a glass nonwoven fabric containing glass fibers or a glass woven fabric containing glass fibers as the fiber reinforcing layer 41, and it is more preferable to use a glass nonwoven fabric.

前記繊維補強層41には、接合樹脂が含浸されていることが好ましい。接合樹脂は、裏面樹脂層42と表面樹脂層2(化粧層3が設けられている場合には化粧層3)の間に積層される繊維補強層41をこれらの層42,3に接着させるために設けられる。
接合樹脂としては、繊維補強層41、裏面樹脂層42及び表面樹脂層2(又は化粧層3)の何れにも接合するものであれば特に限定されず、従来公知の樹脂を用いることができる。接合樹脂としては、表面樹脂層2で例示したような熱可塑性樹脂が挙げられ、中でも、塩化ビニル系樹脂を主成分とする樹脂が好ましく、ペースト塩化ビニル系樹脂を主成分とする樹脂がより好ましい。
接合樹脂を含む繊維補強層41の厚みは、特に限定されず、例えば、0.1mm~1mmであり、好ましくは、0.2mm~0.5mmである。
It is preferable that the fiber reinforcing layer 41 is impregnated with a bonding resin. The bonding resin is for adhering the fiber reinforcing layer 41 laminated between the back surface resin layer 42 and the front surface resin layer 2 (the decorative layer 3 when the decorative layer 3 is provided) to these layers 42 and 3. It is provided in.
The bonding resin is not particularly limited as long as it is bonded to any of the fiber reinforcing layer 41, the back surface resin layer 42, and the surface resin layer 2 (or the decorative layer 3), and conventionally known resins can be used. Examples of the bonding resin include thermoplastic resins as exemplified in the surface resin layer 2, and among them, a resin containing a vinyl chloride resin as a main component is preferable, and a resin containing a paste vinyl chloride resin as a main component is more preferable. ..
The thickness of the fiber reinforcing layer 41 containing the bonding resin is not particularly limited, and is, for example, 0.1 mm to 1 mm, preferably 0.2 mm to 0.5 mm.

裏面樹脂層42は、木目調床材1の強度及び重量を構成する層である。裏面樹脂層42は、発泡されていてもよく、発泡されていなくてもよい。裏面樹脂層42が発泡樹脂層であると、木目調床材1にクッション性を付与でき、木目調床材1の重量を軽くすることができる。裏面樹脂層42が非発泡樹脂層であると、木目調床材1の強度が増して耐動荷重性などに優れる。裏面樹脂層42の形成材料としては、表面樹脂層2で例示したような熱可塑性樹脂が挙げられ、中でも、塩化ビニル系樹脂を主成分とする樹脂が好ましい。前記塩化ビニル系樹脂は、ペースト塩化ビニル樹脂、又は、サスペンジョン塩化ビニル樹脂でもよく、或いは、これらの混合物であってもよい。裏面樹脂層42は、カレンダー法、押し出し法などの従来公知の方法で作製することができる。 The back surface resin layer 42 is a layer constituting the strength and weight of the wood grain flooring material 1. The back surface resin layer 42 may or may not be foamed. When the back surface resin layer 42 is a foamed resin layer, cushioning property can be imparted to the wood grain flooring material 1, and the weight of the wood grain flooring material 1 can be reduced. When the back surface resin layer 42 is a non-foaming resin layer, the strength of the wood grain flooring material 1 is increased and the dynamic load resistance and the like are excellent. Examples of the material for forming the back surface resin layer 42 include thermoplastic resins as exemplified in the surface resin layer 2, and among them, a resin containing a vinyl chloride resin as a main component is preferable. The vinyl chloride resin may be a paste vinyl chloride resin, a suspension vinyl chloride resin, or a mixture thereof. The back surface resin layer 42 can be produced by a conventionally known method such as a calendar method or an extrusion method.

裏面樹脂層42として発泡樹脂層を用いる場合、その発泡倍率は、特に限定されないが、余りに小さいとクッション性が付与できず、余りに大きいと沈み込みが大きくなり過ぎることから、1.1倍~3倍が好ましく、1.2倍~2倍がより好ましい。
なお、必要に応じて、裏面樹脂層42の裏面にエンボス加工が施されていてもよい(図示せず)。
裏面樹脂層42の厚みは、特に限定されないが、例えば、0.5mm~4mmであり、好ましくは1mm~3mmである。
When the foamed resin layer is used as the back surface resin layer 42, the foaming ratio is not particularly limited, but if it is too small, cushioning property cannot be imparted, and if it is too large, the sinking becomes too large. Double is preferable, and 1.2 to 2 times is more preferable.
If necessary, the back surface of the back surface resin layer 42 may be embossed (not shown).
The thickness of the back surface resin layer 42 is not particularly limited, but is, for example, 0.5 mm to 4 mm, preferably 1 mm to 3 mm.

なお、本体層4は、1層の繊維補強層41と1層の裏面樹脂層42とを有する層構成に限られず、例えば、2層以上の繊維補強層を有していてもよく、或いは、2層以上の発泡又は非発泡の樹脂層を有していてもよい(図示せず)。また、本体層4の最裏面に、ゴム、フェルトなどからなるバッキング層がさらに設けられていてもよい(図示せず)。 The main body layer 4 is not limited to a layer structure having one fiber reinforcing layer 41 and one back surface resin layer 42, and may have, for example, two or more fiber reinforcing layers, or may be provided. It may have two or more foamed or non-foamed resin layers (not shown). Further, a backing layer made of rubber, felt, or the like may be further provided on the outermost surface of the main body layer 4 (not shown).

[木目調床材の筋形状]
図3は、本発明の木目調床材1の表面に形成された複数の凸列を拡大し且つ模式的に表した平面図であり、図4は、図3の丸囲い部分IVの更なる拡大模式平面図である。図5及び図6は、1つの凸列を木目の流れ方向に沿って縦断したときの端面図(図4のV-V線の端面図及び図4のVI-VI線の端面図)であり、図7は、複数の凸列を幅方向に沿って横断したときの端面図(図4のVII-VII線の端面図)である。
なお、実際の製品では、表面樹脂層2の表面に形成された凹凸(凸部5及び凹部62など)に対応して表面樹脂層2のみならず化粧層3の厚みも変化するが、図5乃至図7の端面図においては、便宜上、化粧層3を均一な厚みで表していることに留意されたい。
[Streak shape of wood flooring]
FIG. 3 is an enlarged and schematically representative plan view of a plurality of convex rows formed on the surface of the wood grain flooring material 1 of the present invention, and FIG. 4 is a further view of the circled portion IV of FIG. It is an enlarged schematic plan view. 5 and 6 are end views (end view of VV line in FIG. 4 and end view of VI-VI line in FIG. 4) when one convex row is vertically traversed along the flow direction of wood grain. , FIG. 7 is an end view (end view of the VII-VII line in FIG. 4) when a plurality of convex rows are crossed along the width direction.
In the actual product, not only the surface resin layer 2 but also the decorative layer 3 changes in thickness corresponding to the unevenness (convex portion 5, concave portion 62, etc.) formed on the surface of the surface resin layer 2. It should be noted that in the end view of FIG. 7, the decorative layer 3 is represented by a uniform thickness for convenience.

図3及び図4において、本発明の木目調床材1は、木目の筋形状を成す複数の凸列を有する。前記凸列は、木目の流れ方向において、途切れ部61を有して断続的に形成された複数の凸部5から構成されている。
具体的には、1つの凸列は、木目の流れ方向に断続的に形成された複数の凸部5の集合からなる。1つの凸列は、巨視的に見ると、木目の1つの筋を表出している。図3に示す矢印は、1つの凸列を指し示している。
ここで、木目の流れ方向は、再現する天然木の秋材部が延びる方向を意味し、必ずしも直線的な方向性を意味するものではなく、再現した秋材部に相当する筋が延びる方向を意味する。また、幅方向は、前記木目の流れ方向と略直交する方向をいう。前記秋材部とは、天然木の年輪を構成する一部であり、濃色でかつ硬質の部分をいい、春部材とは、淡色でかつ軟質の部分をいう。図3及び図4では、紙面の左右方向を流れ方向とし、紙面の上下方向を幅方向としている。
In FIGS. 3 and 4, the wood grain flooring material 1 of the present invention has a plurality of convex rows forming a streak shape of wood grain. The convex row is composed of a plurality of convex portions 5 intermittently formed with a break portion 61 in the flow direction of the wood grain.
Specifically, one convex row is composed of a set of a plurality of convex portions 5 formed intermittently in the flow direction of the grain of wood. One convex row, when viewed macroscopically, represents one streak of wood grain. The arrow shown in FIG. 3 points to one convex row.
Here, the flow direction of the grain of wood means the direction in which the autumn wood portion of the reproduced natural wood extends, and does not necessarily mean the linear direction, but the direction in which the streaks corresponding to the reproduced autumn wood portion extend. means. Further, the width direction means a direction substantially orthogonal to the flow direction of the wood grain. The autumn wood part is a part constituting the annual ring of natural wood, and refers to a dark and hard part, and the spring member means a light color and soft part. In FIGS. 3 and 4, the left-right direction of the paper surface is the flow direction, and the vertical direction of the paper surface is the width direction.

本発明の木目調床材1は、天然木に近い外観を表出するため、秋材部を再現した各凸列は、平面視において、全体的に緩やかに傾斜又は湾曲している。
図1では、木目の流れ方向は、長尺帯状の木目調床材1の短手方向にほぼ沿っている。もっとも、木目の流れ方向が、長尺帯状の木目調床材1の長手方向にほぼ沿っていてもよく、或いは、木目調床材1の長手方向に鋭角に交わる方向にほぼ沿っていてもよい。
Since the wood grain flooring material 1 of the present invention expresses an appearance close to that of natural wood, each convex row that reproduces the autumn wood portion is gently inclined or curved as a whole in a plan view.
In FIG. 1, the flow direction of the wood grain is substantially along the short side of the long strip-shaped wood grain flooring material 1. However, the flow direction of the wood grain may be substantially along the longitudinal direction of the long strip-shaped wood grain flooring material 1, or may be substantially along the direction at which the wood grain flooring material 1 intersects at an acute angle in the longitudinal direction. ..

前記凸列は、幅方向において複数並列されている。この複数の凸列が形成されていることによって、木目調床材1の表面に、木目の筋形状が表出されている。これによって、足裏へのグリップ力が増加し、特に幅方向への防滑性を高めることができる。
凸列を構成する複数の凸部5は、木目の流れ方向において断続的に形成されている。換言すると、木目の流れ方向において隣接する凸部5,5の間には、途切れ部61が形成されている。これによって、足裏へのグリップ力が増加し、特に流れ方向への防滑性を高めることができる。
A plurality of the convex rows are arranged in parallel in the width direction. By forming the plurality of convex rows, the streak shape of the wood grain is expressed on the surface of the wood grain flooring material 1. As a result, the grip force on the sole of the foot is increased, and the anti-slip property in the width direction can be enhanced in particular.
The plurality of convex portions 5 forming the convex row are formed intermittently in the flow direction of the grain of wood. In other words, a break portion 61 is formed between the convex portions 5 and 5 adjacent to each other in the flow direction of the wood grain. As a result, the grip force on the sole of the foot is increased, and in particular, the anti-slip property in the flow direction can be improved.

また、幅方向に列設された複数の凸列において、幅方向に隣接する凸列の間には、凹部62が形成されている。
前記途切れ部61は、木目の流れ方向において、各凸部5,5間に形成された凹みであり、前記凹部62は、幅方向において各凸部5,5間に形成された凹みである。途切れ部61と凹部62は、清掃性が向上することから、同一平面上にあることが好ましい。
図3の矢印に示すように、各凸列は、幅方向において均等に配置されておらず、凸列が密な領域及び凸列が粗な領域を有する。凸列が粗な領域においては、凹部62が比較的大きな面積を占めている。
なお、凹凸は、凹と凸の相対的な関係で決定されるものであり、前記凸部5は、前記凹部62及び途切れ部61を基準として、表面側に突出した部分である。図3及び図4において、平面視における凸部5の輪郭(つまり、凸部5の平面視形状)を明瞭な実線で表しているが、実際の製品においては、凸部5と途切れ部61及び凹部62とは、連続的に凹凸の高さが変化していることに留意されたい。凸部5は、断面視で角が丸く形成されている(角取りされている)ことが好ましい。これによって、ゴミなどの微粒子類が凸部5を乗り越え易くなり、清掃性が良くなる。
Further, in a plurality of convex rows arranged in the width direction, recesses 62 are formed between the convex rows adjacent to each other in the width direction.
The break portion 61 is a dent formed between the convex portions 5 and 5 in the flow direction of the wood grain, and the concave portion 62 is a dent formed between the convex portions 5 and 5 in the width direction. It is preferable that the interrupted portion 61 and the recess 62 are on the same plane because the cleanability is improved.
As shown by the arrow in FIG. 3, each convex row is not evenly arranged in the width direction, and has a region where the convex row is dense and a region where the convex row is coarse. In the region where the convex rows are rough, the concave portions 62 occupy a relatively large area.
The unevenness is determined by the relative relationship between the concave and the convex, and the convex portion 5 is a portion protruding toward the surface side with the concave portion 62 and the interrupted portion 61 as a reference. In FIGS. 3 and 4, the contour of the convex portion 5 in a plan view (that is, the plan view shape of the convex portion 5) is represented by a clear solid line, but in an actual product, the convex portion 5 and the interrupted portion 61 and It should be noted that the height of the unevenness of the concave portion 62 is continuously changed. It is preferable that the convex portion 5 has rounded corners (squared) in a cross-sectional view. As a result, fine particles such as dust can easily get over the convex portion 5, and the cleanability is improved.

幅方向において隣接する凸列の複数の途切れ部61は、その全部が幅方向において揃っていてもよいが、幅方向において隣接する凸列の複数の途切れ部61の一部が、幅方向において不揃いとされていることが好ましい。前記隣接する凸列の途切れ部61が幅方向において揃っているとは、1つの凸列の途切れ部61の幅方向延長線上に、それに隣接する凸列の途切れ部61が位置していることをいう。前記隣接する凸列の途切れ部61が幅方向において不揃いであるとは、1つの凸列の途切れ部61の幅方向延長線上に、それに隣接する凸列の途切れ部61が位置しないことをいう。
途切れ部61が幅方向において不揃いである場合には、清掃時に箒などの清掃用具で幅方向に掃くと、ゴミや砂などの微粒子類が幅方向に振れながら移動するので、広い範囲を一度に清掃することができる。また、途切れ部61が幅方向において不揃いである場合には、幅方向への防滑性に優れる上、巨視的に見た場合に途切れ部61が目立ち難くなり、より天然木に近い外観を有する木目調床材1を提供できる。他方、途切れ部61が幅方向において揃っている場合には、清掃時に箒などの清掃用具で幅方向に掃くと、微粒子類が効率よく幅方向に移動して除去される。
All of the plurality of breaks 61 of the convex rows adjacent in the width direction may be aligned in the width direction, but some of the plurality of breaks 61 of the convex rows adjacent in the width direction are not aligned in the width direction. It is preferable that The fact that the breaks 61 of the adjacent convex rows are aligned in the width direction means that the breaks 61 of the adjacent convex rows are located on the extension line in the width direction of the breaks 61 of one convex row. Say. The fact that the breaks 61 of the adjacent convex rows are not uniform in the width direction means that the breaks 61 of the adjacent convex rows are not located on the extension line in the width direction of the breaks 61 of one convex row.
If the breaks 61 are uneven in the width direction, if they are swept in the width direction with a cleaning tool such as a broom during cleaning, fine particles such as dust and sand will move while swinging in the width direction, so a wide range can be used at once. Can be cleaned. Further, when the break portion 61 is uneven in the width direction, the break portion 61 is excellent in anti-slip property in the width direction, and the break portion 61 becomes inconspicuous when viewed macroscopically, and the wood grain has an appearance closer to that of natural wood. The floor conditioning material 1 can be provided. On the other hand, when the interrupted portions 61 are aligned in the width direction, the fine particles are efficiently moved and removed in the width direction by sweeping in the width direction with a cleaning tool such as a broom at the time of cleaning.

隣接する凸列の途切れ部61が不揃いとされている場合において、(1)幅方向において隣接する凸列の複数の途切れ部61の全てが互いに不揃いであってもよく、或いは、(2)幅方向において隣接する凸列の多くの途切れ部61が互いに不揃いで且つ少しの途切れ部61が幅方向において揃っていてもよい。(2)の場合、1つの凸列の途切れ部61の個数の全体に対して所定割合以上の途切れ部61が、その凸列に隣接する凸列の途切れ部61と不揃いであることを意味する。前記所定割合は、例えば、70%以上が好ましく、70%~99%がより好ましく、80%~95%がさらに好ましい。
前記所定割合は、次のようにして計測するものとする。(a)木目調床材1の表面の10cm×10cmの範囲の中から、幅方向に隣接する2つの凸列を任意に特定し、そのうちの1つの凸列の途切れ部61の個数を計測し、これを全体の個数とする。(b)前記1つの凸列の途切れ部61の中で、もう1つの凸列の途切れ部61と不揃いとなっている個数を計測し、これを不揃いの個数とする。(c)所定割合〔%〕=(不揃いの個数/全体の個数)×100、によって不揃いとなった途切れ部61を計測するものとする。
When the breaks 61 of the adjacent convex rows are not uniform, (1) all of the plurality of breaks 61 of the adjacent convex rows in the width direction may be irregular with each other, or (2) the width. Many breaks 61 of the convex rows adjacent in the direction may be irregular with each other, and some breaks 61 may be aligned in the width direction. In the case of (2), it means that the break portion 61 of a predetermined ratio or more with respect to the total number of break portions 61 of one convex row is not aligned with the break portion 61 of the convex row adjacent to the convex row. .. The predetermined ratio is, for example, preferably 70% or more, more preferably 70% to 99%, still more preferably 80% to 95%.
The predetermined ratio shall be measured as follows. (A) Two convex rows adjacent to each other in the width direction are arbitrarily specified from the range of 10 cm × 10 cm on the surface of the wood grain flooring material 1, and the number of interrupted portions 61 of one of the convex rows is measured. , Let this be the total number. (B) In the interrupted portion 61 of the one convex row, the number of irregularities with the interrupted portion 61 of the other convex row is measured, and this is taken as the irregular number. (C) It is assumed that the interrupted portion 61 which is irregular due to a predetermined ratio [%] = (number of irregularities / total number) × 100 is measured.

図3及び図4に示すように、凸列を形成する複数の凸部5は、互いに定型的でなく、流れ方向において隣接する凸部5の平面視形状は、殆どが異なっている。また、幅方向に隣接する凸列の各凸部5の平面視形状も殆どが異なっている。不定型的な凸部5の集合からなる凸列が幅方向に複数並設されていることにより、天然木に近い外観を有する木目調床材1を構成できる。
例えば、図3に示すように凸列を構成する各凸部5の平面視形状は、異なっているが、殆どの凸部5は、木目の流れ方向に概ね延びる長状である点において共通している。ただし、幾つかの凸部5は、平面視で点状になっているものもある。殆どの凸部5が、木目の流れ方向に概ね延びる長状であり、各凸部5の平面視形状が異なっているため、天然木に近い外観を表出できる。
なお、各凸列を構成する複数の凸部5は、その多くが各凸列毎に独立しているが、例えば、図3の符号Aに示す一部の隣接する凸列は、凸部5が繋がっている場合もある。
As shown in FIGS. 3 and 4, the plurality of convex portions 5 forming the convex rows are not standard to each other, and the shapes of the convex portions 5 adjacent to each other in the flow direction are almost different in plan view. Further, most of the planar views of the convex portions 5 of the convex rows adjacent to each other in the width direction are also different. By arranging a plurality of convex rows consisting of a set of atypical convex portions 5 in parallel in the width direction, it is possible to form a wood grain flooring material 1 having an appearance similar to that of natural wood.
For example, as shown in FIG. 3, the planar views of the convex portions 5 constituting the convex rows are different, but most of the convex portions 5 are common in that they are elongated in the flow direction of the grain of wood. ing. However, some of the convex portions 5 are point-like in a plan view. Most of the convex portions 5 have a long shape extending in the flow direction of the grain, and each convex portion 5 has a different plan view shape, so that an appearance close to that of natural wood can be expressed.
Most of the plurality of convex portions 5 constituting each convex row are independent for each convex row, but for example, some adjacent convex portions shown by reference numeral A in FIG. 3 are convex portions 5. May be connected.

図4を参照して、木目の流れ方向に概ね延びる長状の凸部5は、その一部又は全部が、平面視で、幅狭部位71と、前記幅狭部位71よりも幅の大きい幅広部位72と、を有する。幅広部位72と幅狭部位71は、相対的な概念であり、例えば、幅狭部位71の幅を基準として、幅広部位72は、その幅狭部位71よりも幅が大きい部位を意味する。なお、幅狭部位71の幅は、その幅方向長さをいい、幅広部位72の幅は、その幅方向長さをいう。幅広部位72の幅は、特に限定されないが、例えば、1mm~3mmであり、好ましくは1.3mm~2.5mmである。幅狭部位71の幅は、特に限定されないが、例えば、前記幅広部位72の幅の0.5倍~0.9倍であり、好ましくは0.6倍~0.8倍である。 With reference to FIG. 4, the elongated convex portion 5 substantially extending in the flow direction of the wood grain has a narrow portion 71 and a wider portion larger than the narrow portion 71 in a plan view. It has a site 72 and. The wide portion 72 and the narrow portion 71 are relative concepts. For example, the wide portion 72 means a portion having a width larger than the narrow portion 71 based on the width of the narrow portion 71. The width of the narrow portion 71 means the length in the width direction, and the width of the wide portion 72 means the length in the width direction. The width of the wide portion 72 is not particularly limited, but is, for example, 1 mm to 3 mm, preferably 1.3 mm to 2.5 mm. The width of the narrow portion 71 is not particularly limited, but is, for example, 0.5 to 0.9 times, preferably 0.6 to 0.8 times, the width of the wide portion 72.

本発明の木目調床材1において、幾つかの凸部5は、1つの幅広部位72と1つの幅狭部位71を有し、幾つかの凸部5は、2つ以上の幅広部位72と1つの幅狭部位71を有し、幾つかの凸部5は、2つ以上の幅広部位72と2つ以上の幅狭部位71を有し、幾つかの凸部5は、幅広部位72及び幅狭部位71を有さない。
例えば、図4の凸部5aは、2つの幅広部位72と、2つの幅狭部位71と、を有する。同図の凸部5bは、3つの幅広部位72と、その3つの幅広部位72の間にそれぞれ配置された2つの幅狭部位71と、を有する。同図の凸部5cは、2つの幅広部位72と、その2つの幅広部位72の間に配置された1つの幅狭部位71と、を有する。例えば、図3の凸部5dは、流れ方向において実質的に幅の広狭がなく、概念的には幅広部位72及び幅狭部位71を有さない。平面視における幅広部位72及び幅狭部位71を有する凸部5やそれらを有さない凸部5が任意に混在されていることにより、天然木に近い外観を有する木目調床材1を構成できる。
In the wood grain flooring material 1 of the present invention, some convex portions 5 have one wide portion 72 and one narrow portion 71, and some convex portions 5 have two or more wide portions 72. It has one narrow portion 71, some convex portions 5 have two or more wide portions 72 and two or more narrow portions 71, and some convex portions 5 have wide portions 72 and It does not have a narrow portion 71.
For example, the convex portion 5a in FIG. 4 has two wide portions 72 and two narrow portions 71. The convex portion 5b in the figure has three wide portions 72 and two narrow portions 71 arranged between the three wide portions 72, respectively. The convex portion 5c in the figure has two wide portions 72 and one narrow portion 71 arranged between the two wide portions 72. For example, the convex portion 5d in FIG. 3 has substantially no width in the flow direction and conceptually has no wide portion 72 and no narrow portion 71. By arbitrarily mixing the convex portion 5 having the wide portion 72 and the narrow portion 71 in the plan view and the convex portion 5 not having them, the wood grain flooring material 1 having an appearance close to that of natural wood can be configured. ..

少なくとも1つの幅広部位72及び少なくとも1つの幅狭部位71を有する凸部5の割合は、特に限定されないが、70%以上の凸部5が、少なくとも1つの幅広部位72及び少なくとも1つの幅狭部位71を有するものであることが好ましく、さらに、70%~99%がより好ましく、80%~95%がさらに好ましい。
前記幅広部位72及び幅狭部位71を有する凸部5の割合は、次のようにして計測するものとする。(a)木目調床材1の表面の10cm×10cmの範囲の中の凸部5の個数を計測し、これを全体の個数とする。(b)前記範囲の凸部5の中で、幅広部位72及び幅狭部位71を有する凸部5の個数を計測し、これを広狭を有する凸部5の個数とする。(c)幅広部位72及び幅狭部位71を有する凸部5の割合〔%〕=(広狭を有する凸部5の個数/全体の個数)×100、によって計測するものとする。以下、この計測方法を、凸部割合計測方法という。
The proportion of the convex portion 5 having at least one wide portion 72 and at least one narrow portion 71 is not particularly limited, but 70% or more of the convex portions 5 have at least one wide portion 72 and at least one narrow portion. It is preferably those having 71, more preferably 70% to 99%, still more preferably 80% to 95%.
The ratio of the convex portion 5 having the wide portion 72 and the narrow portion 71 shall be measured as follows. (A) The number of convex portions 5 in the range of 10 cm × 10 cm on the surface of the wood grain flooring material 1 is measured, and this is taken as the total number. (B) In the convex portion 5 of the above range, the number of the convex portions 5 having the wide portion 72 and the narrow portion 71 is measured, and this is defined as the number of the convex portions 5 having the wide and narrow portions. (C) The ratio of the convex portion 5 having the wide portion 72 and the narrow portion 71 [%] = (the number of the convex portions 5 having the wide and narrow portions / the total number) × 100. Hereinafter, this measurement method is referred to as a convex portion ratio measurement method.

凸部5の立体的な形状に着目すると、図4乃至図7を参照して、木目の流れ方向に概ね延びる長状の凸部5は、その一部又は全部が、突出高さの大きい山部位75と、前記山部位75よりも突出高さが小さい谷部位76と、を有する。山部位75と谷部位76は、相対的な概念であり、例えば、山部位75を基準として、谷部位76は、それよりも突出高さが小さい部位を意味する。なお、山部位75の突出高さは、凹部62から山部位75の頂面までの高さをいい、谷部位76の突出高さは、凹部62から谷部位76の頂面までの高さをいう。
図4に、山部位75の頂面に、便宜上、ドットを付している。図4において、平面視における凸部5の輪郭(つまり、凸部5の平面視形状)を表した無端状の実線で囲われる中でドットを付していない領域は、谷部位76の頂面及び傾斜面を表している。
Focusing on the three-dimensional shape of the convex portion 5, with reference to FIGS. 4 to 7, the elongated convex portion 5 substantially extending in the flow direction of the wood grain is a mountain having a large protrusion height in part or all of the convex portion 5. It has a portion 75 and a valley portion 76 having a smaller protrusion height than the mountain portion 75. The mountain part 75 and the valley part 76 are relative concepts. For example, the valley part 76 means a part having a smaller protrusion height than the mountain part 75 as a reference. The protruding height of the mountain portion 75 refers to the height from the recess 62 to the top surface of the mountain portion 75, and the protruding height of the valley portion 76 refers to the height from the recess 62 to the top surface of the valley portion 76. Say.
In FIG. 4, dots are attached to the top surface of the mountain portion 75 for convenience. In FIG. 4, a region surrounded by an endless solid line representing the contour of the convex portion 5 in a plan view (that is, the plan view shape of the convex portion 5) and not having a dot is the top surface of the valley portion 76. And represents an inclined surface.

詳しくは、図7を参照して、全ての凸部5は、凹部62から立ち上がる開始点となる基点51と、基点51に連続して比較的急峻に立ち上がる傾斜面52と、傾斜面52の先端において平坦状又は弧状になった頂面53と、を有する。前記凸部5の基点51が、平面視における凸部5の輪郭を画成している。凹部62から基点51、基点51から傾斜面52にかけて連続する面は、曲面を成していることが好ましい。これによって、ゴミなどの微粒子類が凸部5を乗り越え易くなり、より清掃性が良くなる。
本発明の木目調床材1において、幾つかの凸部5は、1つの山部位75と1つの谷部位76を有し、幾つかの凸部5は、2つ以上の山部位75と1つの谷部位76を有し、幾つかの凸部5は、2つ以上の山部位75と2つ以上の谷部位76を有し、幾つかの凸部5は、谷部位76を有さない。
厚み方向における山部位75及び谷部位76を有する凸部5及びそれらを有さない凸部5が任意に混在されていることにより、天然木に近い外観を有する木目調床材1を構成できる。
For details, with reference to FIG. 7, all the convex portions 5 have a base point 51 as a starting point rising from the concave portion 62, an inclined surface 52 continuously rising from the base point 51 and rising relatively steeply, and the tip of the inclined surface 52. With a flat or arcuate top surface 53 in. The base point 51 of the convex portion 5 defines the contour of the convex portion 5 in a plan view. It is preferable that the continuous surface from the recess 62 to the base point 51 and from the base point 51 to the inclined surface 52 has a curved surface. As a result, fine particles such as dust can easily get over the convex portion 5, and the cleaning property is improved.
In the wood grain flooring material 1 of the present invention, some convex portions 5 have one mountain portion 75 and one valley portion 76, and some convex portions 5 have two or more mountain portions 75 and 1. It has one valley portion 76, some convex portions 5 have two or more peak portions 75 and two or more valley portions 76, and some convex portions 5 do not have a valley portion 76. ..
By arbitrarily mixing the convex portion 5 having the peak portion 75 and the valley portion 76 in the thickness direction and the convex portion 5 not having them, the wood grain flooring material 1 having an appearance close to that of natural wood can be formed.

図4及び図5の凸部5aは、3つの山部位75と、その山部位75の間に配置された2つの谷部位76と、を有する。図4及び図6の凸部5bは、3つの山部位75と、その山部位75の間に配置された2つの谷部位76と、を有する。図4及び図5の凸部5eは、厚み方向において高低差がなく、概念的には谷部位76を有さない。
前記凸部5aにおいて、複数の山部位75は、突出高さが全て同じでもよく、異なっていてもよい。例えば、前記凸部5aは、突出高さの異なる山部位75を含んでいる。例えば、1つの山部位751(以下、高山部位751という)は、他の山部位752(以下、低山部位752という)よりも突出高さが大きい。高山部位751は、凸部5aの中で最も突出高さが大きい部位である。一方、前記凸部5bにおいては、全ての山部位75の突出高さは略同じである。山部位75及び谷部位76を有する凸部5において、前述の高山部位751及び低山部位752を有しているものもあれば、突出高さが同じの複数の山部位75を有するものもある。
The convex portion 5a of FIGS. 4 and 5 has three peak portions 75 and two valley portions 76 arranged between the peak portions 75. The convex portion 5b of FIGS. 4 and 6 has three peak portions 75 and two valley portions 76 arranged between the peak portions 75. The convex portion 5e of FIGS. 4 and 5 has no height difference in the thickness direction and conceptually has no valley portion 76.
In the convex portion 5a, the plurality of mountain portions 75 may have the same or different protrusion heights. For example, the convex portion 5a includes mountain portions 75 having different protrusion heights. For example, one mountain portion 751 (hereinafter referred to as high mountain portion 751) has a larger protrusion height than the other mountain portion 752 (hereinafter referred to as low mountain portion 752). The alpine portion 751 is a portion having the largest protrusion height in the convex portion 5a. On the other hand, in the convex portion 5b, the protruding heights of all the mountain portions 75 are substantially the same. In the convex portion 5 having the mountain portion 75 and the valley portion 76, some have the above-mentioned high mountain portion 751 and low mountain portion 752, and some have a plurality of mountain portions 75 having the same protrusion height. ..

高山部位751の突出高さH1は、特に限定されないが、清掃性の観点から、0.2mm~0.8mmであり、好ましくは、0.4mm~0.7mmである。低山部位752の突出高さH2は、特に限定されないが、例えば、高山部位751の突出高さH1の0.9倍~0.99倍である。なお、低山部位752の突出高さH2は、谷部位76の突出高さよりも大きい。 The protruding height H1 of the alpine portion 751 is not particularly limited, but is 0.2 mm to 0.8 mm, preferably 0.4 mm to 0.7 mm from the viewpoint of cleanability. The protruding height H2 of the low mountain portion 752 is not particularly limited, but is, for example, 0.9 to 0.99 times the protruding height H1 of the high mountain portion 751. The protruding height H2 of the low mountain portion 752 is larger than the protruding height of the valley portion 76.

谷部位76の突出高さH3は、特に限定されないが、清掃性の観点から、高山部位751の突出高さH1の0.9倍未満であり、好ましくは0.8倍以下であり、より好ましくは、0.7倍以下である。具体的な寸法では、谷部位76の突出高さH3は、例えば、0.45mm以下であり、好ましくは0.4mm以下である。このような突出高さにより、箒などの清掃用具で掃いたときに、微粒子類が谷部位76を容易に乗り越えることができ、清掃性が向上する。
谷部位76の突出高さH3の下限値は、特に限定されないが、木目の筋形状を表出させる観点から、高山部位751の突出高さH1の0.2倍以上であり、好ましくは0.3倍以上であり、より好ましくは0.4倍以上である。谷部位76の突出高さH3が前記下限値以上であると、凸部5の長状が損なわれることなく、木目の筋形状を表出できる。
山部位75の流れ方向の寸法は、例えば0.5mm~3mmであり、好ましくは1mm~2mmである。谷部位76の流れ方向の寸法は、例えば1.5mm~4mmであり、好ましくは2mm~3mmである。流れ方向における谷部位76の寸法は、山部位75の寸法よりも大きくすることが好ましい。これによって、ゴミなどの微粒子類が谷部位76を乗り越え易くなり、幅方向への清掃性を高めることができる。
The protruding height H3 of the valley portion 76 is not particularly limited, but is less than 0.9 times, preferably 0.8 times or less, more preferably 0.8 times or less the protruding height H1 of the alpine portion 751 from the viewpoint of cleanability. Is 0.7 times or less. In specific dimensions, the protruding height H3 of the valley portion 76 is, for example, 0.45 mm or less, preferably 0.4 mm or less. Due to such a protruding height, when swept with a cleaning tool such as a broom, the fine particles can easily get over the valley portion 76, and the cleaning property is improved.
The lower limit of the protrusion height H3 of the valley portion 76 is not particularly limited, but is 0.2 times or more the protrusion height H1 of the alpine portion 751 from the viewpoint of expressing the streak shape of the wood grain, and is preferably 0. It is 3 times or more, more preferably 0.4 times or more. When the protruding height H3 of the valley portion 76 is at least the above lower limit value, the streak shape of the wood grain can be expressed without impairing the elongated shape of the convex portion 5.
The dimension of the mountain portion 75 in the flow direction is, for example, 0.5 mm to 3 mm, preferably 1 mm to 2 mm. The dimension of the valley portion 76 in the flow direction is, for example, 1.5 mm to 4 mm, preferably 2 mm to 3 mm. The dimension of the valley portion 76 in the flow direction is preferably larger than the dimension of the peak portion 75. As a result, fine particles such as dust can easily get over the valley portion 76, and the cleaning property in the width direction can be improved.

なお、複数の山部位75を有し且つ全ての山部位75の突出高さが同じであって少なくとも1つの谷部位76を有する凸部5の、山部位75の突出高さH4は、前記低山部位752の突出高さH2と略同じである。また、1つの山部位75のみしか有さず且つ谷部位76を有さない凸部5の場合の、山部位75の突出高さH4は、前記低山部位752の突出高さH2又は谷部位76の突出高さH3と略同じである。 The protrusion height H4 of the mountain portion 75 of the convex portion 5 having a plurality of mountain portions 75 and having the same protrusion height of all the mountain portions 75 and having at least one valley portion 76 is the above-mentioned low. It is substantially the same as the protruding height H2 of the mountain portion 752. Further, in the case of the convex portion 5 having only one mountain portion 75 and no valley portion 76, the protruding height H4 of the mountain portion 75 is the protruding height H2 of the low mountain portion 752 or the valley portion. It is substantially the same as the protrusion height H3 of 76.

少なくとも1つの山部位75及び少なくとも1つの谷部位76を有する凸部5の割合は、特に限定されないが、70%以上の凸部5が、少なくとも1つの山部位75及び少なくとも1つの谷部位76を有するものであることが好ましく、さらに、70%~99%がより好ましく、80%~95%がさらに好ましい。
前記山部位75及び谷部位76を有する凸部5の割合〔%〕は、上記凸部割合計測方法の「幅広部位72及び幅狭部位71を有する凸部5」及び「広狭を有する凸部5」を「山部位75及び谷部位76を有する凸部5」及び「高低差を有する凸部5」に読み替えて計測するものとする。
The proportion of the convex portion 5 having at least one mountain portion 75 and at least one valley portion 76 is not particularly limited, but 70% or more of the convex portions 5 make up at least one mountain portion 75 and at least one valley portion 76. It is preferably possessed, more preferably 70% to 99%, still more preferably 80% to 95%.
The ratio [%] of the convex portion 5 having the peak portion 75 and the valley portion 76 is the "convex portion 5 having the wide portion 72 and the narrow portion 71" and the "convex portion 5 having the wide narrow portion" of the above-mentioned convex portion ratio measuring method. "" Should be read as "convex portion 5 having a peak portion 75 and a valley portion 76" and "convex portion 5 having a height difference" for measurement.

また、幅方向において隣接する凸列の凸部5,5であって何れも谷部位76を有する凸部5,5に関して、それらの谷部位76が幅方向において揃っていてもよく、或いは、不揃いであってもよい。
好ましくは、幅方向において隣接する凸列の凸部5,5のうち、少なくとも一部の凸部5の谷部位76が幅方向で揃っていることが好ましい。前記隣接する凸列の凸部5,5の谷部位76が幅方向において揃っているとは、1つの凸部5の谷部位76の幅方向延長線上に、それに隣接する凸列の凸部5の谷部位76が位置していることをいう。
例えば、図4においては、殆どの凸部5の谷部位76が幅方向において揃っている。
Further, with respect to the convex portions 5 and 5 of the convex rows adjacent to each other in the width direction and each of which has the valley portions 76, the valley portions 76 may be aligned or irregular in the width direction. May be.
It is preferable that at least a part of the convex portions 5 and 5 of the convex rows adjacent to each other in the width direction have the valley portions 76 aligned in the width direction. The fact that the valley portions 76 of the convex portions 5 and 5 of the adjacent convex row are aligned in the width direction means that the convex portions 5 of the convex row adjacent to the valley portions 76 of the convex row 5 are aligned on the extension line in the width direction of the valley portion 76 of one convex portion 5. It means that the valley part 76 of is located.
For example, in FIG. 4, most of the valley portions 76 of the convex portions 5 are aligned in the width direction.

幅方向において隣接する凸列の凸部5,5の谷部位76が幅方向において揃っている場合において、(1)幅方向において隣接する凸列の凸部5,5は、その全ての凸部5の谷部位76が幅方向において揃っていてもよく、或いは、(2)幅方向において隣接する凸列の多くの凸部5,5の谷部位76が幅方向において揃っており且つ少しの凸部5,5の谷部位76が不揃いでもよい。(2)の場合、1つの凸列の凸部5の谷部位76の個数の全体に対して所定割合以上の谷部位76が、その凸列に隣接する凸列の凸部5の谷部位76と揃っていることを意味する。前記所定割合は、例えば、70%以上が好ましく、70%~99%がより好ましく、80%~95%がさらに好ましい。
前記所定割合は、次のようにして計測するものとする。(a)木目調床材1の表面の10cm×10cmの範囲の中から、幅方向に隣接する2つの凸列を任意に特定し、そのうちの1つの凸列の凸部5の谷部位76の個数を計測し、これを全体の個数とする。(b)前記1つの凸列の凸部5の谷部位76の中で、もう1つの凸列の凸部5の谷部位76と揃っている個数を計測し、これを揃いの個数とする。(c)所定割合〔%〕=(揃いの個数/全体の個数)×100、によって幅方向に揃った谷部位76を計測するものとする。
When the valley portions 76 of the convex portions 5 and 5 of the adjacent convex rows in the width direction are aligned in the width direction, (1) the convex portions 5 and 5 of the adjacent convex rows in the width direction are all the convex portions thereof. The valley portions 76 of 5 may be aligned in the width direction, or (2) many convex portions 5 and 5 of the convex rows adjacent in the width direction are aligned in the width direction and slightly convex. The valley portions 76 of the portions 5 and 5 may be uneven. In the case of (2), the valley portion 76 having a predetermined ratio or more with respect to the total number of the valley portions 76 of the convex portion 5 of one convex row is the valley portion 76 of the convex portion 5 of the convex row adjacent to the convex row. It means that they are aligned with. The predetermined ratio is, for example, preferably 70% or more, more preferably 70% to 99%, still more preferably 80% to 95%.
The predetermined ratio shall be measured as follows. (A) Two convex rows adjacent to each other in the width direction are arbitrarily specified from the range of 10 cm × 10 cm on the surface of the wood grain flooring material 1, and the valley portion 76 of the convex portion 5 of one of the convex rows is specified. The number is measured and this is taken as the total number. (B) In the valley portion 76 of the convex portion 5 of the one convex row, the number aligned with the valley portion 76 of the convex portion 5 of the other convex row is measured, and this is taken as the aligned number. (C) It is assumed that the valley portions 76 aligned in the width direction are measured by a predetermined ratio [%] = (number of matching pieces / total number of pieces) × 100.

中でも、同じ部位に幅広部位72及び山部位75を有し且つ同じ部位に幅狭部位71及び谷部位76を有する凸部5が含まれていることが好ましい。つまり、少なくとも1つの幅広部位72及び少なくとも1つの幅狭部位71を有する凸部5において、そのうちの少なくとも1つの幅広部位72の突出高さが幅狭部位71の突出高さよりも大きい凸部5が含まれていることが好ましい。
図5及び図6に示す凸部5a,5bは、少なくとも1つの幅広部位72が山部位75となっており、少なくとも1つの幅狭部位71が谷部位76となっている凸部5の一例である。
Above all, it is preferable that the same portion includes a convex portion 5 having a wide portion 72 and a peak portion 75 and the same portion having a narrow portion 71 and a valley portion 76. That is, in the convex portion 5 having at least one wide portion 72 and at least one narrow portion 71, the convex portion 5 in which the protruding height of at least one wide portion 72 is larger than the protruding height of the narrow portion 71 is formed. It is preferable that it is contained.
The convex portions 5a and 5b shown in FIGS. 5 and 6 are examples of the convex portions 5 in which at least one wide portion 72 is a mountain portion 75 and at least one narrow portion 71 is a valley portion 76. be.

少なくとも1つの幅広部位72が山部位75となり且つ少なくとも1つの幅狭部位71が谷部位76となっている凸部5の割合は、特に限定されないが、7割以上の凸部5が、その関係を満たしているものであることが好ましい。
少なくとも1つの幅広部位72が山部位75となり且つ少なくとも1つの幅狭部位71が谷部位76となっている凸部5の割合は、上記凸部割合計測方法の「幅広部位72及び幅狭部位71を有する凸部5」及び「広狭を有する凸部5」を「少なくとも1つの幅広部位72が山部位75となり且つ少なくとも1つの幅狭部位71が谷部位76となっている凸部5」に読み替えて計測するものとする。
The ratio of the convex portion 5 in which at least one wide portion 72 is a mountain portion 75 and at least one narrow portion 71 is a valley portion 76 is not particularly limited, but 70% or more of the convex portions 5 are related to each other. It is preferable that it satisfies.
The ratio of the convex portion 5 in which at least one wide portion 72 is a mountain portion 75 and at least one narrow portion 71 is a valley portion 76 is the "wide portion 72 and narrow portion 71" of the above-mentioned convex portion ratio measuring method. "Convex portion 5 having a wide and narrow portion 5" and "convex portion 5 having a wide and narrow portion" are read as "convex portion 5 in which at least one wide portion 72 is a mountain portion 75 and at least one narrow portion 71 is a valley portion 76". It shall be measured.

また、凸部5には、公知の梨地処理がなされている(梨地の凹凸は図示せず)。凸部5に梨地処理が施されることにより、足裏のグリップ力を高め、防滑性を向上できる。
また、凹部62及び途切れ部61の表面は、平面状(平滑面)であるが、凹部62の表面の所々に、木目の流れ方向に延びる微細な筋状の突起が形成されている(この筋状の突起は図示せず)。前記微細な筋状の突起は、天然木の導管溝を再現したものである。前記筋状の突起の突出高さは、清掃性の観点から約50μm以下であることが好ましい。これによって、清掃性を維持しつつ、さらに木質感の向上を図ることができる。
Further, the convex portion 5 is subjected to a known satin finish treatment (the unevenness of the satin finish is not shown). By applying the satin finish to the convex portion 5, the grip force of the sole of the foot can be enhanced and the anti-slip property can be improved.
Further, the surfaces of the recess 62 and the interrupted portion 61 are flat (smooth surface), but fine streaky protrusions extending in the flow direction of the wood grain are formed in some places on the surface of the recess 62 (this streak). The shape of the protrusion is not shown). The fine streaky protrusions reproduce the conduit groove of natural wood. The protruding height of the streaky protrusions is preferably about 50 μm or less from the viewpoint of cleanability. As a result, it is possible to further improve the texture of wood while maintaining cleanability.

[木目調床材の製法]
本発明の木目調床材1は、従来公知の製法に従って作製できる。
例えば、表面樹脂層2の表面に、エンボス版で複数の凸部5を有する凸列を形成する。
本発明の木目調床材1の凸部5を形作るエンボス版は、例えば、次のような方法で得ることができる。
エンボス版としては、通常、円柱状のロールが用いられる。エンボス版の作製に際しては、円柱状のロールに、凸部5に対応する版凹みを形成することによって、凸部5を形作るエンボス版が得られる。
[Manufacturing method of wood grain flooring]
The wood grain flooring material 1 of the present invention can be produced according to a conventionally known production method.
For example, on the surface of the surface resin layer 2, a convex row having a plurality of convex portions 5 is formed by an embossed plate.
The embossed plate forming the convex portion 5 of the wood grain flooring material 1 of the present invention can be obtained, for example, by the following method.
As the embossed plate, a columnar roll is usually used. When producing the embossed plate, an embossed plate forming the convex portion 5 can be obtained by forming a plate recess corresponding to the convex portion 5 on the columnar roll.

基本的な腐食工程は、次の通りである。鉄などの金属製のロールの表面に、レジスト(未硬化の紫外線硬化樹脂膜)を塗布する。紫外線を透過しないインキで模様を印刷した透明シートを、前記レジストの周囲に巻き付ける。紫外線を照射して、レジストを硬化させた後、透明シートを外し、未硬化のレジストを除去する。これに腐食液を塗布すると、金属製のロールのうち未硬化レジスト除去部分が浸食され、版凹みが形成される。最後に硬化したレジスト及び腐食液を除去する。
この腐食工程を1回以上行うことによって、凸部5を形作るエンボス版が得られる。ロールの腐食工程の回数は、特に限定されず、例えば1回~8回である。腐食工程の繰り返し回数が多いほどより複雑な形状の凹凸を形成することができる。
The basic corrosion process is as follows. A resist (uncured UV curable resin film) is applied to the surface of a metal roll such as iron. A transparent sheet having a pattern printed with an ink that does not transmit ultraviolet rays is wrapped around the resist. After irradiating with ultraviolet rays to cure the resist, the transparent sheet is removed to remove the uncured resist. When a corrosive liquid is applied to this, the uncured resist removing portion of the metal roll is eroded and a plate dent is formed. Finally, the cured resist and corrosive liquid are removed.
By performing this corrosion step once or more, an embossed plate forming the convex portion 5 can be obtained. The number of roll corrosion steps is not particularly limited, and is, for example, 1 to 8 times. As the number of repetitions of the corrosion process increases, unevenness having a more complicated shape can be formed.

好ましくは、腐食工程を2回以上繰り返す。2回以上の浸食により、上述の山部位及び谷部位などの突出高さの異なる部位を有する凸部5に相当する版凹み(凸部5に対応する版凹み)を形成できる。
腐食液にて複数回浸食された箇所(つまり、腐食液が複数回重なって塗布された箇所)は、例えば、高山部位を形成できる版凹みとなり、2回分の腐食液にて浸食された箇所(つまり、腐食液が2回重なって塗布された箇所)は、例えば、低山部位を形成できる版凹みとなり、1回分の腐食液にて浸食された箇所は、例えば、谷部位を形成できる版凹みとなる。
腐食液の種類及び濃度などを調整することにより、角取りされた凸部5を形成できる版凹みとすることができる。
腐食液及びレジストを綺麗に除去すると、表面に版凹みが形成されたエンボス版が得られる。エンボス版の表面に形成された版凹みは、木目調床材1の凸部5に対応し、版凹み以外の部分は、木目調床材1の凹部及び途切れ部に対応する。
なお、エンボス版にヘアライン的な微細エンボスを形成すると、凹部6に上述の微細な筋状の突起が形成された木目調床材1を得ることができる。エンボス版にヘアライン的な微細エンボスを形成する方法としては、上述の腐食液を用いた版の腐食工程の他、エンボス版の表面に対するサンドブラスト加工、サンドペーパー加工、ヘアライン加工などが挙げられる。
また、エンボス版に微細な梨地エンボスを形成すると、上述の梨地処理がなされた凸部5を形成できる。
このようにして、本発明の木目調床材1の製造に用いるエンボス版を得ることができる。
Preferably, the corrosion step is repeated two or more times. By eroding two or more times, a plate dent (a plate dent corresponding to the convex portion 5) corresponding to the convex portion 5 having the above-mentioned peak portion and valley portion having different protrusion heights can be formed.
The part that has been eroded multiple times by the corrosive liquid (that is, the part where the corrosive liquid has been applied multiple times) becomes, for example, a plate dent that can form an alpine part, and the part that has been eroded by the corrosive liquid twice (that is, the part that has been eroded by the corrosive liquid multiple times). That is, the portion where the corrosive liquid is applied twice is, for example, a plate dent capable of forming a low mountain portion, and the portion eroded by one dose of the corrosive liquid is, for example, a plate dent capable of forming a valley portion. Will be.
By adjusting the type and concentration of the corrosive liquid, it is possible to obtain a plate dent capable of forming a squared convex portion 5.
When the corrosive liquid and the resist are removed cleanly, an embossed plate having a plate dent formed on the surface is obtained. The plate dent formed on the surface of the embossed plate corresponds to the convex portion 5 of the wood grain flooring material 1, and the portion other than the plate dent corresponds to the concave portion and the interrupted portion of the wood grain flooring material 1.
By forming hairline-like fine embossing on the embossed plate, it is possible to obtain the wood grain flooring material 1 in which the above-mentioned fine streaky protrusions are formed in the recesses 6. Examples of the method for forming hairline-like fine embossing on the embossed plate include sandblasting, sandpaper processing, and hairline processing on the surface of the embossed plate, in addition to the plate corrosion step using the above-mentioned corrosive liquid.
Further, when a fine satin emboss is formed on the embossed plate, the convex portion 5 which has been subjected to the satin treatment described above can be formed.
In this way, an embossed plate used for manufacturing the wood grain flooring material 1 of the present invention can be obtained.

得られたエンボス版を、表面樹脂層2の表面に押圧することによって、複数の凸列を有する木目調床材1が得られる。
エンボス版を押圧する際は、表面樹脂層2を加熱することが好ましい。例えば、加熱されたエンボス版を用いて表面樹脂層2を押圧してもよいし、エンボス版を押圧する直前に、別途の加熱装置を用いて、表面樹脂層2を加熱してもよい。その際の加熱温度は、表面樹脂層2を構成する樹脂成分に応じて適宜設定されるが、通常、130℃~200℃程度である。得られた木目調床材1は、通常、ロールに巻き取られ、保管・搬送に供される。
By pressing the obtained embossed plate against the surface of the surface resin layer 2, a wood grain flooring material 1 having a plurality of convex rows can be obtained.
When pressing the embossed plate, it is preferable to heat the surface resin layer 2. For example, the surface resin layer 2 may be pressed using the heated embossed plate, or the surface resin layer 2 may be heated using a separate heating device immediately before pressing the embossed plate. The heating temperature at that time is appropriately set according to the resin components constituting the surface resin layer 2, but is usually about 130 ° C. to 200 ° C. The obtained wood grain flooring material 1 is usually wound on a roll and used for storage and transportation.

[木目調床材の使用]
本発明の木目調床材1は、例えば、商業施設などの屋内、屋外又は半屋外の床面、マンションなどの廊下やバルコニーなどの屋外又は半屋外の床面、階段などの屋内、屋外又は半屋外の床面などの各種床面に敷設して使用される。特に、本発明の木目調床材1は、箒やブラシなどの清掃用具を用いて清掃することが多い屋外又は半屋外の床面に敷設することが効果的である。なお、半屋外は、庇のような屋根が付いているが、壁面部分が解放されているような場所を含む。以下、屋外又は半屋外床面を単に「屋外床面」と記す。
例えば、本発明の木目調床材1は、屋内床面に隣接している屋外床面に敷設して使用され、或いは、屋内床面に隣接している屋外床面及び前記屋内床面の双方に敷設して使用され、或いは、屋外床面に隣接している屋内床面に敷設して使用される。屋内床面に隣接している屋外又は半屋外床面としては、例えば、マンションの部屋に繋がるバルコニー部分などが挙げられる。
[Use of wood flooring]
The wood grain flooring material 1 of the present invention is, for example, an indoor, outdoor or semi-outdoor floor surface such as a commercial facility, an outdoor or semi-outdoor floor surface such as a corridor or a balcony such as an apartment, an indoor, outdoor or semi-outdoor surface such as a staircase. It is used by laying it on various floors such as outdoor floors. In particular, it is effective to lay the wood grain flooring material 1 of the present invention on an outdoor or semi-outdoor floor surface that is often cleaned using a cleaning tool such as a broom or a brush. The semi-outdoors have a roof like an eaves, but include places where the wall surface is open. Hereinafter, the outdoor or semi-outdoor floor surface is simply referred to as "outdoor floor surface".
For example, the wood grain flooring material 1 of the present invention is used by laying it on an outdoor floor surface adjacent to an indoor floor surface, or both an outdoor floor surface adjacent to an indoor floor surface and the indoor floor surface. It is used by laying it on the indoor floor surface adjacent to the outdoor floor surface. Examples of the outdoor or semi-outdoor floor surface adjacent to the indoor floor surface include a balcony portion connected to the room of the condominium.

図8は、屋内床面に隣接した屋外床面に、本発明の木目調床材1を敷設した床面構造10の平面図を示す。なお、屋内外の境界は、屋外床面と屋内床面とが直接的に隣接している場合に限られず、例えば、掃き出し窓などの建材を介して屋内外が隣接していてもよい。
図示例では、本発明の木目調床材1は、屋外床面に敷設されており、その屋外床面に隣接した屋内床面には、本発明以外の木目模様が表出された床材9が敷設されている。木目模様が表出された床材9は、公知の木目床材を用いることができ、例えば、木目プリント床材、木質フローリング材(天然材又は集成材から形成されたフローリング材)、上記特許文献1の床材などの公知のものが挙げられる。
好ましくは、前記屋外床面に敷設された本発明の木目調床材1と、屋内床面に敷設された公知の床材9は、それらの木目の流れ方向が一致するように敷設される。屋内床面と屋外床面に敷設された2つの床材1,9の木目の流れ方向が一致していることにより、両床材1,9の一体感が増し、意匠性が高まる。
FIG. 8 shows a plan view of the floor surface structure 10 in which the wood grain flooring material 1 of the present invention is laid on the outdoor floor surface adjacent to the indoor floor surface. The boundary between indoors and outdoors is not limited to the case where the outdoor floor surface and the indoor floor surface are directly adjacent to each other, and for example, the indoor and outdoor areas may be adjacent to each other via a building material such as a sweep-out window.
In the illustrated example, the wood grain flooring material 1 of the present invention is laid on the outdoor floor surface, and the floor material 9 on which the wood grain pattern other than the present invention is expressed on the indoor floor surface adjacent to the outdoor floor surface. Is laid. As the flooring material 9 on which the wood grain pattern is exhibited, a known wood grain flooring material can be used. Known materials such as the flooring material of No. 1 can be mentioned.
Preferably, the wood grain flooring material 1 of the present invention laid on the outdoor floor surface and the known floor material 9 laid on the indoor floor surface are laid so that the flow directions of the wood grain coincide with each other. By matching the flow directions of the wood grain of the two floor materials 1 and 9 laid on the indoor floor surface and the outdoor floor surface, the sense of unity between the two floor materials 1 and 9 is increased, and the design is enhanced.

2つの床材1,9の木目の流れ方向は、屋内外方向(屋内側から屋外側)でもよく、或いは、屋内外方向と直交する方向でもよいが、図示例のように、2つの床材1,9の木目の流れ方向が屋内外方向と一致していることが好ましい。屋内外方向とすることにより、屋内側から屋外を見た際に、奥行き感が増加し、空間が広いような感じを与えることができる。
図示例では、木目調床材1は、上述のように木目の流れ方向が床材の短手方向とされているものであり、床材9は、木目の流れ方向が床材の長手方向とされた木目模様が表出されているものである。従って、木目調床材1の長手方向と床材9の長手方向が直交するように、床材1,9が敷設されているが、両床材1,9の木目の流れ方向は一致している。
The flow direction of the wood grain of the two flooring materials 1 and 9 may be the indoor / outdoor direction (from the indoor side to the outdoor side) or the direction orthogonal to the indoor / outdoor direction, but as shown in the illustrated example, the two flooring materials. It is preferable that the flow directions of the wood grains 1 and 9 coincide with the indoor and outdoor directions. By setting the indoor / outdoor direction, when the outdoor is viewed from the indoor side, the sense of depth is increased and the space can be given a feeling of being wide.
In the illustrated example, in the wood grain flooring material 1, the flow direction of the wood grain is the lateral direction of the floor material as described above, and in the floor material 9, the flow direction of the wood grain is the longitudinal direction of the floor material. The wood grain pattern that has been made is exposed. Therefore, the flooring materials 1 and 9 are laid so that the longitudinal direction of the wood grain flooring material 1 and the longitudinal direction of the flooring material 9 are orthogonal to each other, but the flow directions of the wood grain of both flooring materials 1 and 9 are the same. There is.

本発明の木目調床材1は、上述のように、複数の凸部5の平面視形状が異なり、さらに、立体形状において高低差を有する凸部5を含んでいるので、天然木に近い外観を有する。
また、平面視形状が異なる様々な凸部5が形成されているので、歩行時に足裏が滑り難く、特に、高低差を有する凸部5(山部位75及び谷部位76を有する凸部5)を含んでいるので、防滑性に特に優れている。
As described above, the wood grain flooring material 1 of the present invention has a plurality of convex portions 5 having different planar views, and further includes the convex portions 5 having a height difference in the three-dimensional shape, so that the appearance is close to that of natural wood. Have.
Further, since various convex portions 5 having different planar views are formed, the sole of the foot does not easily slip during walking, and in particular, the convex portion 5 having a height difference (the convex portion 5 having the mountain portion 75 and the valley portion 76). Because it contains, it is particularly excellent in anti-slip properties.

本発明の木目調床材1は、清掃性にも優れている。
具体的には、従来の木目調床材は、木目の流れ方向に延びる凸列を有するので、木目調床材の表面を、その流れ方向に箒やブラシなどの清掃用具にて掃くと、ゴミや砂などの微粒子類が滞留しにくく掃き出されていく。しかし、従来の木目調床材では、幅方向に清掃用具にて掃いた場合に、微粒子類が滞留し易く、清掃性に劣っているという欠点がある。
The wood grain flooring material 1 of the present invention is also excellent in cleanability.
Specifically, the conventional wood grain flooring material has a convex row extending in the flow direction of the wood grain, so if the surface of the wood grain flooring material is swept in the flow direction with a cleaning tool such as a broom or a brush, dust will be generated. Fine particles such as sand and sand are hard to stay and are swept out. However, the conventional wood-grain flooring material has a drawback that fine particles tend to stay and are inferior in cleanability when swept in the width direction with a cleaning tool.

この点、本発明の木目調床材1は、凸列が木目の流れ方向において途切れ部61を有して断続的に形成された複数の凸部5から構成されているので、木目調床材1の表面を、清掃用具にて幅方向に掃くと、微粒子類が途切れ部61から幅方向に掃き出されていく。
図9は、本発明の木目調床材1の清掃時の状況を概念的に説明するための参考平面図である(山部位75の頂面にドットを付している)。あくまで参考図であるので、凸部の平面視形状などは、実際のものとは異なっている。
図9を参照して、木目調床材1の表面を清掃用具にて幅方向に掃くと、隣接する凸列の途切れ部61が幅方向において不揃いとされている箇所において、隣接する凸列の間(つまり凹部62)に存在する微粒子類のうち途切れ部61の幅方向側方に位置する微粒子類が、途切れ部61から掃き出されていくようになる。途切れ部61から幅方向に掃き出される微粒子類の移動を白抜き矢印で示している。
In this respect, the wood grain flooring material 1 of the present invention is composed of a plurality of convex portions 5 whose convex rows have a break 61 in the flow direction of the wood grain and are intermittently formed. When the surface of No. 1 is swept in the width direction with a cleaning tool, fine particles are swept out from the break portion 61 in the width direction.
FIG. 9 is a reference plan view for conceptually explaining the situation at the time of cleaning the wood grain flooring material 1 of the present invention (dots are attached to the top surface of the mountain portion 75). Since this is just a reference drawing, the shape of the convex part in a plan view is different from the actual one.
With reference to FIG. 9, when the surface of the wood grain flooring material 1 is swept in the width direction with a cleaning tool, the interrupted portions 61 of the adjacent convex rows are uneven in the width direction, and the adjacent convex rows are arranged. Among the fine particles existing in the space (that is, the recess 62), the fine particles located on the width side of the break portion 61 are swept out from the break portion 61. The movement of fine particles swept out from the break portion 61 in the width direction is indicated by a white arrow.

さらに、凸列を構成する複数の凸部5のうち少なくとも一部が、立体的に山部位75と谷部位76とを有するので、隣接する凸列の間に存在する微粒子類が、谷部位76を乗り越えて幅方向に掃き出されていくようになる。谷部位76を乗り越えて幅方向に掃き出される微粒子類の移動を太矢印で示している。
加えて、凸列を構成する複数の凸部5のうち少なくとも一部が、幅狭部位71と幅広部位72とを有するので、幅方向に掃いた際に、微粒子類が幅狭部位71に集まるようになる。幅狭部位71に集まる微粒子類の移動を細矢印で示している。
上記木目調床材1は、少なくとも1つの幅広部位72が山部位75となり且つ少なくとも1つの幅狭部位71が谷部位76となっている凸部5を有しているので、幅狭部位71に集まった微粒子類は、立体的に谷部位76となった幅狭部位71を乗り越えて幅方向に掃き出され易くなる。
このように、本発明の木目調床材1は、清掃性に優れているものである。
Further, since at least a part of the plurality of convex portions 5 constituting the convex row has the peak portion 75 and the valley portion 76 three-dimensionally, the fine particles existing between the adjacent convex rows are the valley portion 76. It will be swept out in the width direction overcoming. The movement of the fine particles swept out in the width direction over the valley portion 76 is indicated by a thick arrow.
In addition, since at least a part of the plurality of convex portions 5 constituting the convex row has the narrow portion 71 and the wide portion 72, the fine particles gather in the narrow portion 71 when swept in the width direction. Will be. The movement of the fine particles collected in the narrow portion 71 is indicated by a thin arrow.
The wood grain flooring material 1 has a convex portion 5 in which at least one wide portion 72 is a mountain portion 75 and at least one narrow portion 71 is a valley portion 76. The collected fine particles easily get over the narrow portion 71, which is the valley portion 76 in three dimensions, and are easily swept out in the width direction.
As described above, the wood grain flooring material 1 of the present invention is excellent in cleanability.

以下、本発明の実施例を示し、本発明を更に詳述する。但し、本発明は、下記実施例に限定されるものではない。 Hereinafter, examples of the present invention will be shown, and the present invention will be described in more detail. However, the present invention is not limited to the following examples.

[使用材料]
(1)表面樹脂層
無色透明なサスペンジョン塩化ビニル樹脂。
(2)化粧層
意匠印刷シート。塩化ビニル製フィルムに公知のインキを用いて意匠印刷層が印刷されたもの。
(3)繊維補強層
ペースト塩化ビニル樹脂が含浸されたガラスマット。
(4)裏面樹脂層
塩化ビニル樹脂。
[Material used]
(1) Surface resin layer A colorless and transparent suspension vinyl chloride resin.
(2) Decorative layer Design printing sheet. A vinyl chloride film on which a design print layer is printed using known ink.
(3) Fiber reinforced layer A glass mat impregnated with paste vinyl chloride resin.
(4) Backside resin layer Vinyl chloride resin.

[実施例1]
上記(1)乃至(4)の各層を予めそれぞれ準備し、表面側から順に(1)乃至(4)を積層し、約150℃に加熱してこれらを一体化させた。このようにして、厚み約0.3mmの表面樹脂層/厚み約0.2mmの化粧層/厚み約0.3mmの繊維補強層/厚み約1.3mmの裏面樹脂層という層構成の積層体を形成した。この積層体を、加熱されたエンボスロール間に通して、表面樹脂層に木目の筋形状を成す複数の凸列を形成した。前記エンボスロール(ロール状のエンボス版)として、突出高さが0.55mmの山部位と突出高さが0.4mmの谷部位とを有する凸部を形成できるものを使用した。前記凸列は、途切れ部を介して流れ方向に断続的に形成された複数の凸部からなり、各凸列の途切れ部は、多くの箇所で幅方向において不揃いとなっていた。また、各凸部の平面視形状は全て異なっていた。これらの複数の凸部は、幅広部位が山部位で且つ幅狭部位が谷部位である凸部、幅広部位及び幅狭部位を有する凸部、山部位及び谷部位を有する凸部を含んでいた。
実施例1で作製した木目調床材を、縦×横=約8cm×約10cmに裁断し、その表面を撮影した写真図を、図10に示す。
[Example 1]
Each of the above layers (1) to (4) was prepared in advance, and (1) to (4) were laminated in order from the surface side and heated to about 150 ° C. to integrate them. In this way, a layered laminate having a layer structure of a front surface resin layer having a thickness of about 0.3 mm, a decorative layer having a thickness of about 0.2 mm, a fiber reinforcing layer having a thickness of about 0.3 mm, and a back surface resin layer having a thickness of about 1.3 mm is formed. Formed. This laminate was passed between the heated embossed rolls to form a plurality of convex rows forming a wood grain streak on the surface resin layer. As the embossed roll (roll-shaped embossed plate), one capable of forming a convex portion having a peak portion having a protruding height of 0.55 mm and a valley portion having a protruding height of 0.4 mm was used. The convex row was composed of a plurality of convex portions intermittently formed in the flow direction via the interrupted portions, and the interrupted portions of each convex row were irregular in the width direction at many points. In addition, the plan-view shapes of each convex portion were all different. These plurality of convex portions included a convex portion having a wide portion having a mountain portion and a narrow portion having a valley portion, a convex portion having a wide portion and a narrow portion, and a convex portion having a mountain portion and a valley portion. ..
The wood grain flooring material produced in Example 1 is cut into a length × width = about 8 cm × about 10 cm, and a photograph of the surface thereof is shown in FIG.

[実施例2]
実施例1の製法と同様にして、図10のような複数の凸列が表面樹脂層に形成された木目調床材を作製した。ただし、実施例2では、突出高さが0.5mmの山部位と突出高さが0.4mmの谷部位とを有する凸部を形成できるエンボスロールを使用した。
得られた木目調床材は、凸部の山部位の突出高さが上記実施例1とは異なっている点を除いて、実施例1と略同じであった。
[Example 2]
Similar to the production method of Example 1, a wood grain flooring material having a plurality of convex rows formed on the surface resin layer as shown in FIG. 10 was produced. However, in Example 2, an embossed roll capable of forming a convex portion having a peak portion having a protruding height of 0.5 mm and a valley portion having a protruding height of 0.4 mm was used.
The obtained wood grain flooring material was substantially the same as that of Example 1 except that the protruding height of the mountain portion of the convex portion was different from that of Example 1.

[実施例3]
実施例1の製法と同様にして、図10のような複数の凸列が表面樹脂層に形成された木目調床材を作製した。ただし、実施例3では、突出高さが0.5mmの凸部(つまり、谷部位を有さず、高さ変化のない凸部)を形成できるエンボスロールを使用した。
得られた木目調床材は、凸部の突出高さが一定であり且つ凸部が谷部位を有さない点を除いて、実施例1と略同じであった。
[Example 3]
Similar to the production method of Example 1, a wood grain flooring material having a plurality of convex rows formed on the surface resin layer as shown in FIG. 10 was produced. However, in Example 3, an embossed roll capable of forming a convex portion having a protrusion height of 0.5 mm (that is, a convex portion having no valley portion and having no height change) was used.
The obtained wood grain flooring material was substantially the same as in Example 1 except that the protruding height of the convex portion was constant and the convex portion did not have a valley portion.

[実施例4]
実施例1の製法と同様にして、図10のような複数の凸列が表面樹脂層に形成された木目調床材を作製した。ただし、実施例4では、突出高さが0.8mmの山部位と突出高さが0.65mmの谷部位とを有する凸部を形成できるエンボスロールを使用した。
得られた木目調床材は、凸部の山部位及び谷部位の各突出高さが上記実施例1とは異なっている点を除いて、実施例1と略同じであった。
[Example 4]
Similar to the production method of Example 1, a wood grain flooring material having a plurality of convex rows formed on the surface resin layer as shown in FIG. 10 was produced. However, in Example 4, an embossed roll capable of forming a convex portion having a peak portion having a protruding height of 0.8 mm and a valley portion having a protruding height of 0.65 mm was used.
The obtained wood grain flooring material was substantially the same as that of Example 1 except that the protruding heights of the mountain portion and the valley portion of the convex portion were different from those of Example 1.

<凸部の突出高さの計測>
実施例1の木目調床材から、任意の箇所を10cm×10cmに裁断することにより、計測用サンプル片を得た。この計測用サンプル片の表面を目視して、凸部の谷部位に相当する箇所を、幅方向に沿って切断し、その切断面に存在する切断された谷部位の突出高さを計測した。前記計測は、切断面をマイクロスコープ(拡大倍率:50倍)にて拡大して行った。この場合の突出高さは、凹部から切断された谷部位の頂面までの長さである。任意に異なる10箇所の谷部位を目視で選択し、それぞれの突出高さを計測し、その10個の計測値の中の最小値を谷部位の突出高さとした。前記計測用サンプル片の表面を目視して、凸部の山部位に相当する箇所を、幅方向に沿って切断し、その切断面に存在する切断された山部位の突出高さを、同様にして計測した。この場合の突出高さは、凹部から切断された山部位の頂面までの長さである。任意に異なる10箇所の山部位を目視で選択し、それぞれの突出高さを計測し、その10個の計測値の中の最大値を山部位の突出高さとした。実施例1の谷部位及び山部位の突出高さを表1に示す。
<Measurement of protrusion height of convex part>
From the wood-grained flooring material of Example 1, a sample piece for measurement was obtained by cutting an arbitrary portion into a size of 10 cm × 10 cm. The surface of the sample piece for measurement was visually observed, a portion corresponding to the valley portion of the convex portion was cut along the width direction, and the protruding height of the cut valley portion existing on the cut surface was measured. The measurement was performed by magnifying the cut surface with a microscope (magnification magnification: 50 times). The protruding height in this case is the length from the recess to the top surface of the cut valley portion. Ten different valley parts were visually selected and the protrusion height of each was measured, and the minimum value among the ten measured values was taken as the protrusion height of the valley part. By visually observing the surface of the sample piece for measurement, the portion corresponding to the mountain portion of the convex portion is cut along the width direction, and the protruding height of the cut peak portion existing on the cut surface is made the same. And measured. The protruding height in this case is the length from the recess to the top surface of the cut mountain portion. Ten different mountain parts were visually selected and the protrusion height of each was measured, and the maximum value among the ten measured values was taken as the protrusion height of the mountain part. Table 1 shows the protrusion heights of the valley portion and the mountain portion of Example 1.

実施例2乃至4の木目調床材についても、実施例1の木目調床材と同様にして、谷部位及び山部位の突出高さを計測した。その結果を、表1に示す。
ただし、実施例3の木目調床材については、谷部位を有さない凸部を形成したので、谷部位の突出高さの計測は行わなかった。
表1の通り、実施例1乃至4で作製した木目調床材は、何れも、ほぼ設計通りの突出高さを有する凸部が形成されていた。
For the wood-grain flooring materials of Examples 2 to 4, the protrusion heights of the valley portion and the mountain portion were measured in the same manner as in the wood-grain flooring material of Example 1. The results are shown in Table 1.
However, for the wood-grain flooring material of Example 3, since a convex portion having no valley portion was formed, the protrusion height of the valley portion was not measured.
As shown in Table 1, all of the wood-grained flooring materials produced in Examples 1 to 4 had convex portions having a protrusion height almost as designed.

<清掃試験>
実施例1乃至4のそれぞれの木目調床材から、任意の箇所を30cm×30cmに裁断することにより、試験用サンプル片をそれぞれ得た。
23℃、湿度50%RH、大気圧下で、各試験用サンプル片の表面(凸部が形成された面)のほぼ中央部に、平均粒径30μmのアルミナ粒子15gを載せた後、試験用サンプル片の重量を測定した。測定後、直ちに、市販の化繊ホウキ(箒の穂の素材がポリプロピレン)を用いて、凸列と直交する方向である幅方向に4回掃いた後、試験用サンプル片の重量を測定した。下記式から、粒子の除去率[%]を計算した。
アルミナ粒子残量[g]=アルミナ粒子を載せた直後の試験用サンプル片の重量-ホウキで掃いた直後の試験用サンプル片の重量。
除去率[%]=100-アルミナ粒子残量[g]÷15[g]×100。
<Cleaning test>
From each of the wood-grained flooring materials of Examples 1 to 4, test sample pieces were obtained by cutting arbitrary portions into 30 cm × 30 cm.
After placing 15 g of alumina particles with an average particle size of 30 μm on the almost center of the surface (the surface on which the convex portion is formed) of each test sample piece at 23 ° C., humidity 50% RH, and atmospheric pressure, the test is performed. The weight of the sample piece was measured. Immediately after the measurement, a commercially available synthetic broom (the material of the broom spike was polypropylene) was used to sweep four times in the width direction orthogonal to the convex row, and then the weight of the test sample piece was measured. The particle removal rate [%] was calculated from the following formula.
Remaining amount of alumina particles [g] = Weight of test sample piece immediately after mounting alumina particles-Weight of test sample piece immediately after sweeping with a broom.
Removal rate [%] = 100-Alumina particle remaining amount [g] ÷ 15 [g] × 100.

実施例1乃至4の清掃試験は、それぞれ3回行った。その除去率の平均値を表1に示す。
なお、表1の清掃性の評価欄において、除去率が95%以上である場合を○とし、除去率が90%以上95%未満である場合を△と表記している。
The cleaning tests of Examples 1 to 4 were performed three times each. The average value of the removal rate is shown in Table 1.
In the cleanability evaluation column of Table 1, the case where the removal rate is 95% or more is indicated by ◯, and the case where the removal rate is 90% or more and less than 95% is indicated by Δ.

Figure 0007075328000001
Figure 0007075328000001

清掃試験の結果から、実施例1乃至4の木目調床材は、清掃に優れていることが判る。
実施例1及び2と実施例3との対比から、谷部位を有する凸部が形成された木目調床材の方が、清掃性により優れていることが判る。
実施例1及び2と実施例4との対比から、山部位及び谷部位の突出長さが大きすぎない方が、清掃性により優れていることが判る。木目の筋形状を表出しつつ、より清掃性に優れた木目調床材を構成するために、山部位の突出高さは、0.3mm~0.7mmが良く、好ましくは0.4mm~0.65mm、より好ましくは0.4mm~~0.6mmが良いと考えられ、谷部位の突出高さは、0.1mm~0.5mmが良く、好ましくは0.15mm~0.45mm、より好ましくは0.2mm~0.4mmが良いと考えられる。
From the results of the cleaning test, it can be seen that the wood-grained flooring materials of Examples 1 to 4 are excellent in cleaning.
From the comparison between Examples 1 and 2 and Example 3, it can be seen that the wood-grained flooring material having the convex portion having the valley portion is superior in cleanability.
From the comparison between Examples 1 and 2 and Example 4, it can be seen that the protrusion length of the mountain portion and the valley portion is not too large, which is superior in cleanability. The protruding height of the mountain portion is preferably 0.3 mm to 0.7 mm, preferably 0.4 mm to 0, in order to construct a wood grain flooring material having better cleanability while expressing the streak shape of the wood grain. It is considered that .65 mm, more preferably 0.4 mm to 0.6 mm is preferable, and the protrusion height of the valley portion is preferably 0.1 mm to 0.5 mm, preferably 0.15 mm to 0.45 mm, more preferably. It is considered that 0.2 mm to 0.4 mm is good.

1 木目調床材
2 表面樹脂層
3 化粧層
4 本体層
5,5a,5b,5c,5d,5e 凸部
61 途切れ部
62 凹部
71 幅狭部位
72 幅広部位
75,751,752 山部位
76 谷部位
1 Lumber flooring 2 Surface resin layer 3 Decorative layer 4 Main body layer 5,5a, 5b, 5c, 5d, 5e Convex part 61 Breaking part 62 Recessed part 71 Narrow part 72 Wide part 75, 751,752 Mountain part 76 Valley part

Claims (5)

木目の筋形状を成す複数の凸列を有し、樹脂を主体とする木目調床材であって、
前記凸列が、木目の流れ方向において、途切れ部を有して断続的に形成された複数の凸部から構成されており、
前記凸列を構成する複数の凸部の一部又は全部が、突出高さの大きい山部位と、前記山部位よりも突出高さが小さい谷部位と、を有し、
前記山部位のうち最も突出高さの大きい部位が、高さ0.2mm~0.8mmであり、
前記谷部位の突出高さが、前記最も突出高さの大きい部位の高さの0.2倍以上0.9倍未満である、木目調床材。
It is a wood-grain flooring material that has multiple convex rows that form a streak shape of wood and is mainly made of resin.
The convex row is composed of a plurality of convex portions intermittently formed with breaks in the flow direction of the wood grain .
A part or all of the plurality of convex portions constituting the convex row has a mountain portion having a large protrusion height and a valley portion having a protrusion height smaller than that of the peak portion.
The part having the largest protrusion height among the mountain parts has a height of 0.2 mm to 0.8 mm, and has a height of 0.2 mm to 0.8 mm.
A wood grain flooring material in which the protruding height of the valley portion is 0.2 times or more and less than 0.9 times the height of the portion having the largest protruding height .
前記凸列を構成する複数の凸部の一部又は全部が、平面視で、幅狭部位と、前記幅狭部位よりも幅の大きい幅広部位と、を有し、
前記山部位が、前記幅広部位に形成され、且つ、前記谷部位が、前記幅狭部位に形成されている、請求項1に記載の木目調床材。
A part or all of the plurality of convex portions constituting the convex row has a narrow portion and a wide portion having a width larger than the narrow portion in a plan view.
The wood-grain flooring material according to claim 1 , wherein the mountain portion is formed in the wide portion and the valley portion is formed in the narrow portion .
前記複数の凸列が、木目の流れ方向と略直交する方向である幅方向において並列されており、
1つの凸列の凸部の谷部位のうち70%以上の谷部位が、当該凸列に隣接する凸列の凸部の谷部位と幅方向において揃っている、請求項1または2に記載の木目調床材。
The plurality of convex rows are arranged in parallel in the width direction, which is a direction substantially orthogonal to the flow direction of the wood grain.
The one according to claim 1 or 2, wherein 70% or more of the valley portions of the convex portion of one convex row are aligned with the valley portion of the convex portion of the convex row adjacent to the convex row in the width direction. Wood grain flooring material.
前記凸列が、2つ以上の山部位と前記山部位の間の谷部位とを有する凸部を含む、請求項1乃至3のいずれか一項に記載の木目調床材。 The wood grain flooring material according to any one of claims 1 to 3 , wherein the convex row includes a convex portion having two or more mountain portions and a valley portion between the mountain portions . 木目模様が表出された床材が敷設された屋内床面と、前記屋内床面に隣接した屋外又は半屋外床面と、を有し、
請求項1乃至4のいずれか一項に記載の木目調床材が、前記屋内床面に敷設された床材と木目の流れ方向を一致させて前記屋外又は半屋外床面に敷設されている、床面構造。
It has an indoor floor surface on which a floor material with a wood grain pattern is laid, and an outdoor or semi-outdoor floor surface adjacent to the indoor floor surface.
The wood grain flooring material according to any one of claims 1 to 4 is laid on the outdoor or semi-outdoor floor surface so as to match the flow direction of the wood grain with the floor material laid on the indoor floor surface. , Floor structure.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000199235A (en) 1998-11-05 2000-07-18 Sugiaki Kusatake Slip prevention surface structure
JP2017115524A (en) 2015-12-25 2017-06-29 大和ハウス工業株式会社 Housing
JP2017144599A (en) 2016-02-16 2017-08-24 凸版印刷株式会社 Decorative material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1170800A (en) * 1997-08-29 1999-03-16 Dainippon Printing Co Ltd Decorative material
JP4390869B2 (en) * 1998-03-19 2009-12-24 大日本印刷株式会社 Cosmetic material with line-like uneven pattern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000199235A (en) 1998-11-05 2000-07-18 Sugiaki Kusatake Slip prevention surface structure
JP2017115524A (en) 2015-12-25 2017-06-29 大和ハウス工業株式会社 Housing
JP2017144599A (en) 2016-02-16 2017-08-24 凸版印刷株式会社 Decorative material

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