JP4541667B2

JP4541667B2 - Anti-slip paint

Info

Publication number: JP4541667B2
Application number: JP2003172927A
Authority: JP
Inventors: 秀博小川
Original assignee: 株式会社クリエイティブライフ
Priority date: 2003-06-18
Filing date: 2003-06-18
Publication date: 2010-09-08
Anticipated expiration: 2023-06-18
Also published as: JP2005008720A

Description

【０００１】
【発明の属する技術分野】
本発明は、防滑塗料に関し、殊に、塗料に防滑骨材を混入・分散させて塗布する防滑塗料に関する。
【０００２】
【従来の技術】
従来より、コンクリートや石材を用いた床面、あるいは水気の多い脱衣場や風呂場の床面など足元が滑りやすい場所においては、利用者が足を滑らせて転倒する事故が起きやすいため、床面に防滑処理を施して安全性を確保することが行われている。斯かる防滑処理は、床材の摩耗防止や腐食防止、さらには美観の向上という目的も合わせて有している。
【０００３】
そして、防滑処理として珪砂やセラミック微粒子等の無機微粒子体からなる防滑骨材を所定の接着剤または塗料を介して床面に固着させて、これらを塗膜表面に露出あるいは塗料で覆った状態にして凹凸を与えることで、床面の摩擦抵抗を高めて滑りにくくすることが実施されている。
【０００４】
しかし、珪砂等の無機質からなる骨材は比重が重いため沈殿しやすく、しかも粒径が均一ではないため、塗料中に均一に分散させにくい。このため、塗装にムラが生じやすくなることから厚塗りを行うが、床材が塗装で厚く覆われることとなり、例えば石材表面の微妙な凹凸や木材表面の美しい年輪模様等の素材独特の質感を損ないやすい。また、衝撃・摩耗により防滑骨材が砕けたり脱落したりすることも多いため、防滑性能が低下したり脱落部分に汚れが付着して外観がさらに損なわれる場合もある。さらに、脱落個所から塗装が剥離して床材の摩耗・腐食が始まるケースもある。
【０００５】
また、老人施設の浴室床やスポーツ施設のウエット床面等は特に滑りやすい場所であるが、利用者が素肌で直接触れる部分でもある。従って、このような場所に硬度が高く粒子のバラツキのある防滑骨材を用いると、触感が悪いことに加え肌に痛みを感じたり傷をつけたりして、快適性を大きく損なってしまう。さらに、斯かる防滑骨材は無機素材であって肌に触れると冷たい感触を与えやすい。
【０００６】
これに対し、液体塗料中にナイロンパウダーを混入させて塗布する防滑塗料が特開平９−８７５４７号公報に提示され、塗料に硬質合成樹脂を付着または混入させてなる防滑性床材が特開２００２−３４９０５０号公報に提示されている。
【０００７】
これらの防滑塗料及び防滑床材は、塗料に比較的比重が軽く粒径の均一な有機質高分子体を混入させることで、これらを塗料中に均一に分散させて、薄塗りでも表面にムラの少ない防滑塗装を実現するとともに、床材の質感を活かすこともできる。また、塗膜が乾燥した後には表面に微細な凹凸を与えた防滑塗装面が形成されるが、その防滑骨材は有機質であって硬度が高すぎず表面も滑らかであり、また粒径も均一であるため、触感も比較的良好なものとなる。
【０００８】
しかしながら、これらの防滑塗料における塗料自体の耐候性・耐久性は高いものではなく、例えば、紫外線の影響を受けて劣化してしまい、塗装自体が剥離して床材が摩耗・腐食してしまう等の問題が生じやすい。さらに、ナイロンパウダーによる防滑塗装面の凹凸は、図２のＡ図に示すようにナイロンパウダー４の周りを塗膜２Ｂがカバーした状態で表面に突出してなるものであり、カバーしている塗膜２Ｂが剥離すると（図２のＢ図）、ナイロンパウダー４が脱落して（図２のＣ図）、その脱落個所に汚れが付着したり塗膜２Ｂが剥離して、床材１が摩耗・腐食したりしてしまうことがある。一方、硬質合成樹脂粒を塗装面に固着させる防滑塗装面においても、図３のＡ図に示すように、硬質合成樹脂粒５が塗膜２Ｃに食い込んでいるのみでこれと一体になっていないため、これが容易に脱落しやすい（図３のＢ図）。
【０００９】
【発明が解決しようとする課題】
本発明は、上記のような問題点を解決しようとするものであり、防滑塗料について、これを塗布することにより、耐久性に優れて長期間に亘り床材を保護しながら優れた防滑性能を発揮させるとともに、使用者にとって安全で快適な防滑床面を得られるようにすることを課題とする。
【００１０】
【課題を解決するための手段】
そこで、本発明は、液体塗料に木材微粒子を防滑骨材として所定割合で混入してなる防滑塗料として、床面に塗布することにより木材微粒子がその一部に液体塗料が含浸された状態で塗膜と一体となって塗装表面に凹凸を形成するものとした。
【００１１】
これにより、液体塗料に防滑骨材として比重の軽い木材微粒子を混入することで、塗料に均一に分散させやすくなって薄塗りでも均一で微細な凹凸を有する防滑面を実現できる。また、塗料が防滑骨材に含浸することで塗膜と一体となって脱落しにくいとともにこれがクッションとなるため、耐久性に優れた防滑床面となる。さらに、珪砂などの無機質の防滑骨材と異なり、木材は粒径を均一にしやすいとともに感触が硬すぎず、また熱伝導性も高くないため触感がよく利用者に快適な床面となる。
【００１２】
また、前述の防滑塗料において木材微粒子を桐粉微粒子とすることで、塗料中で均一に分散しやすいことに加えて、桐材は細孔が発達しているため塗料が充分に含浸して塗膜との一体性がさらに高まる。また、桐材は多孔質であって空気を充分に含み断熱性が高く、しかもクッション性に優れるため極めて触感のよいものとなり、加えて耐摩耗性にも優れて防滑面の耐久性も充分となる。
【００１３】
さらに、液体塗料に竹粉微粒子を防滑骨材として所定割合で混入してなる防滑塗料として、床面に塗布することにより竹粉微粒子の一部に液体塗料が含浸された状態で塗膜と一体となって塗装表面に凹凸を形成するものとする。これにより、木材微粒子を混入させた防滑塗料と同様の効果に加え、竹特有の消臭・抗菌効果も期待することができる。
【００１４】
さらにまた。前述した防滑塗料において液体塗料を常温硬化型のセラミックス系塗料とする。これにより、床面に塗布するだけで容易に防滑処理を行えるようになる。また、これによる防滑塗装はセラミックスを含み硬度が高く耐候性・耐久性に優れて、長期間に亘り床材を保護しながら美観を損なわないようにすることができる。
【００１５】
加えて、前述の防滑塗料において、混入させる防滑骨材の平均粒径を５０μ〜２５０μの範囲内とすれば防滑効果を確保しつつ触感が悪くならず、その混入量を液体塗料に対し０．２〜１．０重量％とすれば、薄塗りでも適度な防滑効果が期待できるとともに、素材の質感を損なうこともない。
【００１６】
さらに加えて、前述した防滑塗料で表面処理を施して、表面に微細な凹凸をもつ防滑塗装面を備えた防滑床材として提供すれば、短い工期で容易に防滑効果の優れた床面を完成させることができる。
【００１７】
【発明の実施の形態】
次に、本発明の実施の形態について、図面を用いながら以下に詳細に説明する。尚、異なる実施の形態であっても、同じ構成要素には同一の符号を付して説明する。また、本発明において、床面及び床材とは、屋外・屋内を問わず、一般的な意味としての人が歩行する部分及び当該部分に用いる部材のほか、階段のステップ、さらに例えば風呂で人が座る部分や、人が載る部分を有する設備・装置の搭乗面など、人の防滑を必要とする表面部分及び当該部分に用いる部材も広く含むものとする。
【００１８】
図１は、本発明の第一の実施の形態を示すものであり、防滑塗料を塗布することにより床材１表面に塗膜２Ａを設けた防滑床材表面部分の縦断面拡大図を示している。この防滑塗料は、木材微粒子からなる防滑骨材として桐粉微粒子３を用いたものである。液体塗料は、セラミックス系塗料を用いる場合、例えばジルコニウムやシリカ等のセラミックを含有してなる常温硬化型のものを用いることが好ましい。これに対し、高温の焼成を必要なセラミックス系塗料は、施工に手間がかかるとともに、骨材に耐熱性に欠ける有機性の多孔質微粒子を用いる関係で好ましくない。尚、セラミックス系塗料は主剤に硬化剤を入れて硬化させる２剤型、そのまま乾燥・硬化する１剤型のどちらでもよく、さらに溶剤を添加してもよいことはいうまでもない。また、無色のものに限らず、目的に応じて染料・顔料を適宜選択して加えてもよい。
【００１９】
桐粉微粒子は、平均粒径が５０μ〜２００μのものが適当である。これは、５０μ未満であると、一回塗りにした場合の塗膜の平均的な厚さ（約３０μ）に対し、突出部分が少なくなって防滑性が不十分になり、２５０μを超えると突出部分が大きくなりすぎてこれが脱落しやすくなったり、踏んだ場合に足裏に傷みを感じたりするからである。また、桐微粉末体の混入量はセラミックス系塗料（硬化材重量含む）に対して０．２〜１．０重量％が適当である。０．２重量％未満であると、塗装面にたいする防滑骨材の分布が少なくなり過ぎて防滑性が不十分となり、１．０重量％を超えると防滑性が過剰となって滑りがなくなって足が引っ掛かる等の危険が生じ、さらに塗料の透明性が妨げられたり素材特有の凹凸が平坦化されたりして素材の質感が妨げられるからである。
【００２０】
図１に示すように、床材１の表面に薄く均一に塗布された塗膜２Ａ（厚さ約３０μ）が形成された防滑床面において、粒径が約１００μ〜１５０μの微粒子体からなる桐粉微粒子３がほぼ均一な分散状態で塗膜２Ａから突出して、塗装表面に微細な凹凸が形成された状態となっている。各桐粉微粒子３はほぼ均一の形状（略球形）であり、突出部分の外面は塗膜２Ａで覆われていないが、その緻密な細孔の一部にセラミックス系塗料が含浸して塗膜２Ａと堅固に一体化している。また、細孔には外部に開口し空気を包含しているものもある。そのため、防滑骨材３は脱落しにくく耐久性・耐摩耗性に優れており、且つ断熱性・呼吸性に優れた防滑床面を形成している。
【００２１】
桐材は、道管が緻密で柔組織が発達した木材であり、比重が約０．３（気乾比重）であって極めて軽く塗料中で沈殿しにくいため、粉体にして混入する塗料中に均一に分散しやすいとともに、その分散状態が維持されやすい。また、熱伝導率は約０．０６（kcal/m・h・℃）であり、木口面硬さが１．５（Ｈ_l）であって、断熱性に優れて冷たくなく、しかもクッション性を有して硬すぎないため、極めて触感のよいものである。さらに、桐材は復元性に富んで磨滅に強い素材であるため、防滑性が長期間保持されやすい。従って、桐材を加工する際に発生するキリ粉等は従来殆ど廃棄されていたが、塗料に混入させる防滑骨材として最適なものであり、利用価値が極めて高いものである。
【００２２】
一方、他の実施の形態として、竹材の加工の際に排出される竹粉微粒子を防滑骨材として用いてもよい。竹材は木材と同様に細孔が発達し弾力性に優れていることから、上述の桐粉微粒子を用いた場合とほぼ同様な効果が期待できる。ただし、竹材は桐材より比重がやや重いため、同じ平均粒径で同じ重量を配合した場合、塗装面の防滑骨材による凸部の分布量がやや少なくなる。そのため、同じ防滑性能を発揮させるには、桐粉微粒子よりやや多めに混入させた方がよい場合もある。しかし、竹材自体は特有の消臭・抗菌作用を有しているため、トイレや浴室などの臭いやカビが問題となる場所におけるめ作用があり粉末体素材であって図である。これに示のである滑り止めに、極めて適したものである。ところで、上述した桐は比較的成長が早く１５年程度で利用できるようになるものであり、前述の竹はさらに短期間（２，３年）で利用できるようになる。従って、ともに森林資源保護の観点からも有利な材料といえる。
【００２３】
尚、上述した各実施の形態において、防滑骨材の混入量は塗料重量に対し０．２〜１重量％の範囲が適当であるが、一般的に靴で歩く場所は０．２〜０．６重量％、浴室、シャワールーム、プールサイド等の水廻りは０．５〜１．０重量％を混入させるのが適当である。
【００２４】
【実施例】
上述した発明の実施の形態のうち、防滑骨材を粒径１００μ〜１５０μの桐粉微粒子として、セラミックス系塗料に対し０．５重量％を混入させたものを用いて防滑処理を行い、無塗装の床材と防滑性比較試験を行った（一部セラミックス系塗料に防滑骨材を混入しないものを含む）。尚、この桐粉微粒子は桐たんす加工工程から排出されるキリ粉を１００メッシュと１４０メッシュのふるいにかける等して、粒径を適宜調整して得たものである。
【００２５】
本実施例において用いるセラミックス系塗料（主剤・硬化剤・溶剤）の成分を以下に示す。
【表１】

【００２６】
被塗装床材として、▲１▼石材（御影石磨き）、▲２▼ビニル床長尺シートを用い、それぞれ防滑塗装したものと無塗装のものを、後述する試験内容を実施して得た結果についてそれぞれ比較した。尚、防滑骨材自体の効果確認のため、防滑骨材を混入しない塗料で石材に塗装を行い、同様に試験した。
【００２７】
（施工手順）
先ず、各被塗装面の汚れ及び付着物を完全に除去後、表面をカラ拭き及びアルコール等でムラなく均一に洗浄した。次に、塗料に対し桐粉微粒子を重量％で０．５％混入したものと混入しないものを作成して、ムラのないように混練して分散させた。このような手順にしたのは、一般的に床面に塗布する直前に床面の状態に対応して防滑骨材の混合量を決定して防滑塗料を完成させているからである。尚、硬化剤との混合比率は、主剤：硬化剤＝６：１の割合とした。
【００２８】
塗布量は、ローラー一回塗りで８０ｇ／ｍ²とした。そして、約２０℃の常温で自然乾燥（指触乾燥時間約５時間）後、一週間の養生を行ってセラミックスを硬化させた。
【００２９】
（試験方法）
ＪＩＳＡ１４５４「高分子系張り床材試験方法」中に規定される「滑り試験」に準じて行った。斜め引張試験機滑り片Ｂを使用し、滑り片に靴底を想定したゴム板を張り付け、載荷重量を８０ｋｇとして所定の前置時間を置いた後、荷重速度８０ｋｇ／秒で引っ張り、その時の引っ張り最大荷重（８０ｋｇ）で除した値（CSR）を滑り抵抗の評価値とした。
【００３０】
本試験で用いた靴底条件、表面状態を以下の表２に示す。尚、試験は各条件ともｎ＝３で実施し、それぞれ平均値を求めた。
【表２】

【００３１】
（試験結果）
試験結果を以下の表２に示す。
【表３】

【００３２】
参考までに、一般建築物の床の滑りに関する評価指標を以下に説明する。
紳士靴・サンダル・中ヒールについて、歩行（快適性・安全性）、駆け出し（安全性）、急停止（安全性）、方向転換（安全性）の総ての場合の最適値を包含するCSRの最適値範囲は、０．４５〜０．７０である。また、重度の障害の発生原因となる滑りすぎによる転倒を防ぐことを考慮した場合のCSRの最適値範囲は、０．５５〜０．７０であり、歩行に重点を置いた場合のCSRの許容範囲は、０．４０〜０．８０である。
【００３３】
（考察）
防滑塗装は、水散布の状態において総て防滑性の向上に大きく寄与した。また、他の防滑塗料では防滑性を発揮しにくい水＋ダスト散布状態においても、防滑性が向上した。一方、石材における骨材を入れない塗装との比較においても防滑性の向上が確認された。
【００３４】
従って、上記結果から床面に本実施例の防滑塗料を塗布して処理することにより、ほぼ防滑性の最適範囲内となって高い安全性が得られたものと考えられる。
尚、参考として、水散布状態において防滑塗料の塗布回数を増やしても防滑性の変化は見られず、防滑骨材の量を増やす程、防滑性は向上した。これに対し、水＋ダスト散布状態においては塗布回数、防滑骨材の量に関わらず同程度の防滑性であった。
【００３５】
ところで、本実施例で用いたセラミックス系塗料は常温で硬化して通常は焼成のいらない常温硬化型であるが、無機成分保有率が高いため床材への施工が容易であり、しかも硬化すると優れた硬度を有し、衝撃及び紫外線や酸・アルカリに極めて強いため、これを塗布した床面も耐久性・耐腐食性に優れたものとなる。加えて、硬化後は透明度が高く、防水性に優れると同時にある程度通気性を備えているため、呼吸性を要求される石材や木材に用いれば、素材の質感を生かしながらこれを保護して長期間美観を保つことができるものである。そして、斯かるセラミックス系塗料と多孔性の防滑骨材との組み合わせが床材の通気性を優れたものとする。従って、特に防滑性と美観が求められる建物のエントランス部分、さらに風呂場の床やスポーツ施設のウエット部分など、水に濡れやすくしかも摩耗・腐食されやすい部分に好適である。
【００３６】
尚、本発明を実施するための最良の形態は以上の説明で十分に示したが、本発明はこれらに限定されるものではない。例えば、用途・被塗装物の特性に応じて、防滑骨材の種類・粒径・混入量及び塗膜の厚さ等を適宜変えることが好ましい。例えば、本実施例のように透明なセラミックス系塗料に対し１００μ〜１５０μの桐微粒子を０．５重量％混入した場合、被塗装材料の質感、例えば木材の木目等がはっきりと透視されるとともに、表面の凹凸が適度な大きさと分布量になるため、触感と防滑効果のバランスが良好なものとなる
【００３７】
これに対し、桐粉微粒子の平均粒径をさらに大きくしたり混入量を増やしたりすれば防滑効果は更に高まるが、足が引っ掛かりやすくなって危険であることに加え、触感と美観が損なわれてくる。一方、粒径をさらに小さくしたり混入量を減らしたりすれば、床材の質感は向上しても防滑効果が充分ではなくなる。さらに、セラミックス系塗料は常温硬化型であれば実施例のものに限らないとともに、透明なものに限らず所望の染料・顔料を付加してもよいことはいうまでもない。
【００３８】
【発明の効果】
以上述べたように、本発明である防滑塗料により耐久性に優れて長期間に亘り被塗装面である床材を保護しながら優れた防滑性能を発揮させるとともに、使用者にとって触感がよく安全で快適な防滑床面が得られる。
【図面の簡単な説明】
【図１】本発明の防滑塗料を床材に塗布した実施の形態における防滑床面の縦断面拡大図。
【図２】（Ａ）、（Ｂ）、（Ｃ）は、従来例における防滑床面の縦断面拡大図。
【図３】（Ａ）および（Ｂ）異なる従来例における防滑床面の縦断面拡大図。
【符号の説明】
１床材、２Ａ，２Ｂ，２Ｃ塗膜、３桐粉微粒子、４ナイロンパウダー、５硬質合成樹脂粒[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-slip coating, and more particularly to an anti-slip coating applied by mixing and dispersing an anti-slip aggregate in the coating.
[0002]
[Prior art]
Traditionally, floors made of concrete or stone, or floors with a lot of moisture, such as floors in bathrooms and bathrooms, where the feet are slippery, can cause accidents where the user slips and falls. Anti-slip treatment is applied to the surface to ensure safety. Such an anti-slip treatment also has the purpose of preventing wear and corrosion of the flooring, and further improving the appearance.
[0003]
Then, as an anti-slip treatment, anti-slip aggregates composed of inorganic fine particles such as silica sand and ceramic fine particles are fixed to the floor surface with a predetermined adhesive or paint, and these are exposed on the coating surface or covered with the paint. By providing unevenness, the frictional resistance of the floor surface is increased to make it difficult to slip.
[0004]
However, an aggregate made of an inorganic material such as silica sand has a high specific gravity and thus tends to precipitate, and since the particle size is not uniform, it is difficult to uniformly disperse it in the paint. For this reason, thick coating is applied because unevenness tends to occur in the coating, but the flooring is covered with coating thickly, for example, the material texture unique to the stone surface, such as subtle unevenness on the stone surface and beautiful annual ring pattern on the wood surface Easy to lose. In addition, since the anti-slip aggregate is often crushed or dropped due to impact or wear, the anti-slip performance may be deteriorated or dirt may adhere to the dropped part, which may further deteriorate the appearance. In addition, there are cases where the flooring material begins to wear and corrode due to the peeling of the paint from the drop-off point.
[0005]
In addition, the bathroom floors of elderly facilities and wet floors of sports facilities are particularly slippery places, but they are also the parts that users touch directly with bare skin. Therefore, when an anti-slip bone material having high hardness and particle variation is used in such a place, the feeling of touch is not only bad, but also the skin feels pain and is damaged, and comfort is greatly impaired. Furthermore, such anti-slip bone materials are inorganic materials and tend to give a cold feel when touching the skin.
[0006]
On the other hand, an anti-slip paint in which nylon powder is mixed in a liquid paint and applied is disclosed in Japanese Patent Laid-Open No. 9-87547, and an anti-slip floor material obtained by adhering or mixing hard synthetic resin to the paint is disclosed in -349050.
[0007]
These anti-slip paints and anti-slip flooring materials are mixed uniformly in the paint by mixing organic polymers having a relatively small specific gravity and a uniform particle size into the paint. In addition to realizing less anti-slip coating, you can also make use of the texture of the flooring. In addition, after the coating has dried, an anti-slip coating surface with fine irregularities on the surface is formed, but the anti-slip aggregate is organic and the surface is smooth and the hardness is not too high. Since it is uniform, the tactile sensation is relatively good.
[0008]
However, the weather resistance and durability of these anti-slip coatings are not high. For example, the anti-slip coating deteriorates due to the influence of ultraviolet rays, and the coating itself peels off and the flooring becomes worn and corroded. The problem is likely to occur. Further, the unevenness of the anti-slip coating surface by the nylon powder is formed by projecting to the surface with the coating film 2B covering the periphery of the nylon powder 4 as shown in FIG. When 2B peels (FIG. 2B), the nylon powder 4 falls off (FIG. 2C), dirt adheres to the place where it falls off or the coating 2B peels off, and the flooring 1 is worn. It may corrode. On the other hand, as shown in FIG. 3A, the hard synthetic resin particles 5 are not integrated with the anti-slip coating surface in which the hard synthetic resin particles are fixed to the painted surface. Therefore, it is easy to drop off (FIG. 3B).
[0009]
[Problems to be solved by the invention]
The present invention is intended to solve the above-described problems. By applying this anti-slip coating, the anti-slip performance is excellent while protecting the flooring material over a long period of time. It is an object to make it possible to obtain an anti-slip floor surface that is safe and comfortable for the user while exhibiting it.
[0010]
[Means for Solving the Problems]
Therefore, the present invention is a non-slip paint in which wood fine particles are mixed in a liquid paint at a predetermined ratio as an anti-slip aggregate, and is applied to the floor surface so that the wood fine particles are partially impregnated with the liquid paint. Unevenness was formed on the painted surface integrally with the film.
[0011]
Thereby, by mixing wood fine particles having a light specific gravity as an anti-slip aggregate into the liquid paint, it is easy to disperse uniformly in the paint, and an anti-slip surface having uniform fine irregularities can be realized even with thin coating. In addition, since the anti-slip aggregate is impregnated with the coating material, it is difficult to drop off integrally with the coating film, and it becomes a cushion, so that the anti-skid floor surface is excellent in durability. Furthermore, unlike inorganic anti-skid bone materials such as silica sand, wood is easy to make the particle size uniform, is not too hard to feel, and has a low thermal conductivity, so that it has a good tactile feel and is a comfortable floor for the user.
[0012]
In addition, by making the wood particles into paulownia fine particles in the above-mentioned anti-slip coating, in addition to being easy to disperse uniformly in the paint, the paulownia has developed pores so that the paint is sufficiently impregnated and applied. The integrity with the membrane is further increased. In addition, the paulownia material is porous, has sufficient air, has high heat insulation properties, and has excellent cushioning properties, so it is extremely tactile, and also has excellent wear resistance and anti-slip surface durability. Become.
[0013]
Furthermore, as a non-slip paint in which bamboo powder fine particles are mixed in liquid paint at a predetermined ratio as anti-slip aggregate, it is integrated with the coating film with liquid paint impregnated in part of the bamboo powder fine particles by applying to the floor surface. As a result, irregularities are formed on the painted surface. Thereby, in addition to the same effect as the anti-slip paint mixed with wood fine particles, deodorant and antibacterial effects peculiar to bamboo can be expected.
[0014]
Furthermore again. In the above-described anti-slip paint, the liquid paint is a room temperature curing type ceramic paint. This makes it possible to easily carry out the anti-slip treatment simply by applying to the floor surface. Further, the anti-slip coating by this contains ceramics and has high hardness, excellent weather resistance and durability, and can prevent the appearance from being lost while protecting the flooring material for a long period of time.
[0015]
In addition, if the average particle diameter of the anti-slip aggregate to be mixed is in the range of 50 μm to 250 μm in the above-described anti-slip coating, the anti-slip effect is secured and the tactile sensation is not deteriorated. If it is 2 to 1.0% by weight, an appropriate anti-slip effect can be expected even with a thin coating, and the texture of the material is not impaired.
[0016]
In addition, if the surface is treated with the above-mentioned anti-slip paint and provided as an anti-slip floor material with an anti-slip coating surface with fine irregularities on the surface, a floor surface with excellent anti-slip effect can be easily completed in a short construction period. Can be made.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail below with reference to the drawings. Note that, even in different embodiments, the same components are described with the same reference numerals. Further, in the present invention, the floor surface and the flooring material include a part in which a person walks as a general meaning regardless of whether it is outdoors or indoors and members used for the part, a step of a staircase, and further, for example, a person in a bath A surface part that requires anti-slip of a person, such as a part on which a person sits, a boarding surface of a facility / device having a part on which a person rests, and a member used for the part are also widely included.
[0018]
FIG. 1 shows a first embodiment of the present invention, and shows an enlarged longitudinal sectional view of a surface portion of a non-slip floor material provided with a coating 2A on the surface of the floor material 1 by applying an anti-slip paint. Yes. This anti-slip paint uses tung powder fine particles 3 as an anti-slip aggregate made of wood fine particles. When the ceramic paint is used as the liquid paint, it is preferable to use a room temperature curing type resin containing a ceramic such as zirconium or silica. On the other hand, a ceramic coating that requires high-temperature firing is not preferable because it takes time for construction and uses organic porous fine particles lacking heat resistance in the aggregate. Needless to say, the ceramic paint may be either a two-component type in which a curing agent is added to the main agent and cured, or a one-component type that is dried and cured as it is, and a solvent may be added. Moreover, it is not restricted to a colorless thing, You may select and add dye and a pigment suitably according to the objective.
[0019]
Appropriate tung powder particles having an average particle diameter of 50 to 200 μm are suitable. This is because if it is less than 50 μm, the protruding part becomes less than the average thickness (about 30 μm) of the coating film when applied once and the slip resistance becomes insufficient, and if it exceeds 250 μm, it protrudes. This is because the part becomes too large and it becomes easy to drop off, or when it is stepped on, the sole of the foot will be damaged. The mixing amount of the paulownia fine powder is suitably 0.2 to 1.0% by weight with respect to the ceramic paint (including the weight of the hardener). If it is less than 0.2% by weight, the distribution of the anti-slip aggregate on the coated surface becomes too small and the anti-slip property becomes insufficient, and if it exceeds 1.0% by weight, the anti-slip property becomes excessive and slipping is lost. This is because there is a danger that the material will be caught, and the transparency of the paint is hindered, and the unevenness peculiar to the material is flattened to hinder the texture of the material.
[0020]
As shown in FIG. 1, a paulownia made of fine particles having a particle size of about 100 μm to 150 μm on a non-slip floor surface on which a thin film 2A (thickness: about 30 μm) is applied on the surface of the flooring 1 The fine powder particles 3 protrude from the coating film 2A in a substantially uniform dispersed state, and fine irregularities are formed on the coating surface. Each paulownia fine particle 3 has a substantially uniform shape (substantially spherical), and the outer surface of the protruding portion is not covered with the coating film 2A. Solidly integrated with 2A. Some pores open to the outside and contain air. Therefore, the anti-slip aggregate 3 is difficult to drop off, has excellent durability and wear resistance, and forms an anti-slip floor surface excellent in heat insulation and breathability.
[0021]
Paulownia wood is a wood with a dense canal and a soft tissue developed. It has a specific gravity of about 0.3 (air-dry specific gravity) and is extremely light and difficult to settle in the paint. It is easy to disperse uniformly, and the dispersion state is easily maintained. In addition, the thermal conductivity is about 0.06 (kcal / m · h · ° C), the hardness of the end is 1.5 (H _l ), it has excellent heat insulation, is not cold, and has cushioning properties. Since it is not too hard, it is extremely tactile. Furthermore, since paulownia is a material that is highly recoverable and resistant to abrasion, it is easy to maintain slip resistance for a long period of time. Therefore, most of the powder and the like generated when processing the paulownia wood has been discarded in the past, but it is optimal as an anti-slip bone material to be mixed into the paint and has a very high utility value.
[0022]
On the other hand, as another embodiment, bamboo powder fine particles discharged during processing of bamboo material may be used as an anti-slip material. Bamboo material has fine pores and is excellent in elasticity like wood, so that it can be expected to have almost the same effect as the case where the above-mentioned fine particles of tung powder are used. However, since the specific gravity of bamboo is slightly heavier than that of paulownia, when the same weight is blended with the same average particle size, the distribution amount of the convex portion due to the anti-slip aggregate on the painted surface is slightly reduced. Therefore, in order to exhibit the same anti-slip performance, it may be better to mix a little more than paulownia powder fine particles. However, the bamboo material itself has a specific deodorizing and antibacterial action, and therefore, it is a powder body material that has a setting action in places where odors and molds are problematic, such as toilets and bathrooms. It is extremely suitable for the non-slip shown here. By the way, the above-mentioned paulownia grows relatively quickly and can be used in about 15 years, and the above-mentioned bamboo can be used in a shorter period (a few years). Therefore, both can be said to be advantageous materials from the viewpoint of forest resource protection.
[0023]
In each of the above-described embodiments, the amount of anti-slip aggregate mixed is suitably in the range of 0.2 to 1% by weight with respect to the weight of the paint, but in general, the place to walk with shoes is 0.2 to 0.00. It is appropriate to mix 0.5% to 1.0% by weight of water around 6% by weight, bathroom, shower room, poolside, and the like.
[0024]
【Example】
Of the embodiments of the invention described above, anti-slip treatment is carried out using anti-slip aggregate made of paulownia powder particles having a particle size of 100 μm to 150 μm and mixed with 0.5% by weight of the ceramic paint, and no coating is applied. A non-slip property comparison test was conducted with some flooring materials (including some ceramic paints that do not contain anti-slip aggregate). The fine particles of paulownia powder are obtained by appropriately adjusting the particle size by, for example, passing the dust powder discharged from the paulownia chest processing step through a sieve of 100 mesh and 140 mesh.
[0025]
The components of the ceramic paint (main agent / curing agent / solvent) used in this example are shown below.
[Table 1]

[0026]
About the results obtained by carrying out the test contents described later, using (1) stone (granite stone polishing) and (2) vinyl floor long sheet as the floor material to be painted, with anti-slip coating and uncoated respectively. Each was compared. In addition, in order to confirm the effect of the anti-slip aggregate itself, the stone material was painted with a paint not mixed with the anti-slip aggregate, and tested in the same manner.
[0027]
(Construction procedure)
First, after completely removing dirt and deposits on each surface to be coated, the surface was uniformly and uniformly cleaned with a wipe or alcohol. Next, what mixed 0.5% by weight of paulownia fine particles with respect to the paint and those not mixed were prepared, and kneaded and dispersed so as not to be uneven. The reason why such a procedure is adopted is that, generally, the anti-slip paint is completed by determining the mixing amount of the anti-slip aggregate corresponding to the state of the floor immediately before application to the floor. The mixing ratio with the curing agent was a ratio of main agent: curing agent = 6: 1.
[0028]
The coating amount was set to 80 g / m ² by a single roller coating. Then, after natural drying at a room temperature of about 20 ° C. (touch drying time of about 5 hours), curing was performed for one week to cure the ceramic.
[0029]
(Test method)
The test was conducted in accordance with the “slip test” defined in JIS A 1454 “Testing Method for Polymeric Tension Flooring”. Using the sliding piece B of the diagonal tensile tester, a rubber plate was attached to the sliding piece, assuming a shoe sole. The value (CSR) divided by the maximum load (80 kg) was taken as the evaluation value of the slip resistance.
[0030]
Table 2 below shows the sole conditions and surface conditions used in this test. The test was carried out with n = 3 for each condition, and the average value was obtained.
[Table 2]

[0031]
(Test results)
The test results are shown in Table 2 below.
[Table 3]

[0032]
For reference, an evaluation index related to slipping of a floor of a general building is described below.
CSR for men's shoes, sandals, and medium heels that includes optimal values for walking (comfort / safety), starting (safety), sudden stopping (safety), and changing directions (safety) The optimum value range is 0.45 to 0.70. In addition, the optimum value range of CSR is 0.55 to 0.70 when considering the prevention of falls due to over-slip, which is a cause of severe obstacles, and CSR tolerance when emphasis is placed on walking The range is 0.40 to 0.80.
[0033]
(Discussion)
The anti-slip coating greatly contributed to the improvement of the anti-slip property in the water sprayed state. In addition, the anti-slip property was improved even in the case of water + dust spraying where it is difficult to exhibit the anti-slip property with other anti-slip paints. On the other hand, the improvement of anti-slip property was also confirmed in comparison with the painting without the aggregate in the stone.
[0034]
Therefore, from the above results, it can be considered that by applying the anti-slip paint of the present example to the floor surface and processing it, the safety is almost within the optimum range of the anti-slip property.
As a reference, the anti-slip property was not changed even when the number of application of the anti-slip paint was increased in the water spray state, and the anti-slip property was improved as the amount of the anti-slip aggregate was increased. On the other hand, in the water + dust spraying state, the slip resistance was comparable regardless of the number of coatings and the amount of the slip resistant aggregate.
[0035]
By the way, the ceramic paint used in this example is a room temperature curing type that cures at room temperature and normally does not require firing, but it is easy to apply to flooring due to its high inorganic component retention, and it is excellent when cured. Since it has high hardness and is extremely resistant to impact, ultraviolet rays, acids and alkalis, the floor surface on which it is applied also has excellent durability and corrosion resistance. In addition, after curing, it is highly transparent, excellent in waterproofness and at the same time breathable to some extent, so it can be used for stones and wood that require breathability to protect it while taking advantage of the texture of the material. It can keep the beauty of the period. And the combination of such a ceramic-based paint and a porous anti-slip bone material makes the air permeability of the flooring material excellent. Therefore, it is particularly suitable for entrance portions of buildings where anti-slip properties and aesthetics are required, as well as wet floor portions of bathroom floors and sports facilities, which are easily wetted and corroded.
[0036]
Although the best mode for carrying out the present invention has been sufficiently shown in the above description, the present invention is not limited to these. For example, it is preferable to appropriately change the type, particle size, mixing amount, thickness of the coating film, etc. of the anti-slip aggregate according to the application and the characteristics of the object to be coated. For example, when 0.5% by weight of paulownia fine particles of 100 μm to 150 μm are mixed in a transparent ceramic paint as in this example, the texture of the material to be coated, for example, the wood grain, etc. is clearly seen through, Since the unevenness on the surface has an appropriate size and distribution amount, the balance between tactile sensation and anti-slip effect is good.
On the other hand, if the average particle size of paulownia fine particles is further increased or the mixing amount is increased, the anti-slip effect will be further enhanced, but in addition to being dangerous because the feet will be easily caught, the tactile sensation and aesthetics will be impaired. come. On the other hand, if the particle size is further reduced or the mixing amount is reduced, the anti-slip effect will not be sufficient even if the texture of the flooring is improved. Furthermore, the ceramic coating material is not limited to that of the embodiment as long as it is a room temperature curing type, and it goes without saying that a desired dye / pigment may be added without being limited to the transparent one.
[0038]
【The invention's effect】
As described above, the anti-slip paint according to the present invention provides excellent anti-slip performance while protecting the floor material that is the surface to be coated for a long period of time, and provides a good touch and safety for the user. A comfortable slip-proof floor can be obtained.
[Brief description of the drawings]
FIG. 1 is an enlarged vertical cross-sectional view of an anti-slip floor surface in an embodiment in which an anti-slip paint of the present invention is applied to a floor material.
FIGS. 2A, 2B, and 2C are enlarged longitudinal sectional views of a non-slip floor surface in a conventional example.
3A and 3B are enlarged longitudinal sectional views of a non-slip floor surface in different conventional examples.
[Explanation of symbols]
1 Flooring material, 2A, 2B, 2C coating film, 3 paulownia powder fine particles, 4 nylon powder, 5 hard synthetic resin particles

Claims

An anti-slip paint in which wood particles are mixed in a liquid paint at a predetermined ratio as an anti-slip aggregate,
By applying to the floor surface, the wood particles form an unevenness on the painted surface together with the coating film in a state in which the liquid paint is impregnated in part thereof,
Anti-slip paint characterized by that.

The anti-slip coating material according to claim 1, wherein the wood particles are tung powder particles.

An anti-slip paint in which bamboo powder fine particles are mixed in a liquid paint at a predetermined ratio as an anti-slip aggregate,
By applying to the floor surface, the bamboo powder fine particles are integrated with the coating film in a state in which the liquid paint is impregnated in a part thereof to form irregularities on the painted surface.
Anti-slip paint characterized by that.

4. The anti-slip paint according to claim 1, wherein the liquid paint is a room temperature curable ceramic paint.

The anti-slip paint according to claim 1, 2, 3 or 4, wherein the anti-slip aggregate has an average particle size of 50 to 250 µ.

The anti-slip paint according to claim 1, 2, 3, 4 or 5, wherein a ratio of mixing the anti-slip aggregate into the liquid paint is 0.2 to 1.0% by weight with respect to the liquid paint.

An anti-slip flooring material, which is treated with the anti-slip paint according to claim 1, 2, 3, 4, 5 or 6, and has an anti-slip coating surface having irregularities on the surface.