JP4107565B2 - Flooring - Google Patents

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Publication number
JP4107565B2
JP4107565B2 JP2002103702A JP2002103702A JP4107565B2 JP 4107565 B2 JP4107565 B2 JP 4107565B2 JP 2002103702 A JP2002103702 A JP 2002103702A JP 2002103702 A JP2002103702 A JP 2002103702A JP 4107565 B2 JP4107565 B2 JP 4107565B2
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Japan
Prior art keywords
floor
laser
depression
maximum width
laser beam
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JP2003293562A (en
Inventor
シバクマラン ウィグナラージャ
香織 牧野
賢司 杉本
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Taisei Corp
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Taisei Corp
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  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Laser Beam Processing (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、建物の床、階段の踏板、歩道の表面を形成する床材、及びその床材の滑り防止加工方法に関する。
【0002】
【従来の技術】
一般に、床面を滑りにくくするときには、床面を形成する床材の表面仕上げを粗く加工して滑り防止効果を付与している。
【0003】
【発明が解決しようとする課題】
ここで、建築空間の意匠性の観点から、鏡面状態の本磨きの石材を床材として使用することも多く行われている。
しかし、この鏡面状態の床材について、滑り難くする目的で面仕上げを粗く仕上げようとすると、床材の光沢が失われ、意匠性に影響が生じるという問題がある。
【0004】
また、最近、床材として厚板のガラスを採用することで、透光性の床とする場合も増えている。ガラス板からなる床材表面を滑り難くする場合には、通常、艶消し仕上げ加工が施されることが多い。しかし、艶消し仕上げにすると、透光性が損なわれるという問題がある。
本発明は、このような点に鑑みてなされたもので、鏡面状態を損なうことなく滑り防止処理が施された床材、及びそのような床材の滑り防止加工方法を提供することを課題としている。
【0005】
【課題を解決するための手段】
上記課題を解決するために、本発明は、次の特徴を有する。
【0006】
請求項1に記載された発明は、石材若しくはガラスを素材とる床用基材の鏡面状態の表面に対し、光沢度を保つために、窪みの基材表面における最大幅を上限値の800(μm)とするときは隣り合う窪みの間隔の下限値を1(mm)とするように、また、滑り防止効果を発揮するために、前記最大幅を下限値の500(μm)とするときは前記間隔の上限値を5(mm)とするように、エネルギーを0.2〜0.6ジュールに、照射時間を0.002〜0.005秒に設定したパルスレーザ光を照射位置を順次相対移動するように照射し、その熱衝撃によって間隔を置いて照射した箇所を爆裂させて複数の窪みを形成することで、前記鏡面状態の床用基材の表面に形成された各窪みの最大幅と間隔が、前記下限値と上限値の範囲内においてほぼ均一とされているである。
【0007】
次に、請求項2に記載した発明は、請求項1に記載した構成に対し、床用基材がSiO

成分を含有しているとき、予めレーザ光を透過可能な冷却剤を付与した状態で、記パルスレーザ光の照射を行うことで、レーザによる熱衝撃による窪みの周りのミクロなひび割れのない床材とされたことを特徴とするものである。
上記レーザ光を透過可能な冷却剤としては、水が簡便(コスト安で使用が容易)で好適であるが、液体に限定されず、冷却された空気などの気体や氷などの固体からなる冷却剤であっても良い。要は、レーザ光を透過すると共に、レーザ光が照射された位置の基材表面の熱を吸収可能な冷却剤であれば良い。
【0009】
ここで、各窪みの最大幅を、「基材表面において」定義しているのは、窪み内部では、幅が上記幅よりも小さくなることもあるためである。
最大幅とは、窪みの断面が円形形状であれば直径を、楕円形状であれば長径を、矩形であれば対角線の長さを指す。窪みの断面形状に特に限定はない。
また、上記窪みの間隔とは、隣り合う2つの窪みの中心と中心とを結ぶ距離である。なお、1平方センチ当たりの窪みの数に換算すると、本願発明では、100個未満、4個以上となる。
【0010】
本発明によれば、上記のような条件で複数の窪みを形成することで、鏡面状態(表面の光沢度)を損なうことなく、床面に滑り防止加工を施した状態にすることができる。
また、集光したレーザ光を床用基材に照射することにより、レーザが当たった箇所の表面層を瞬時に爆裂させることで、鏡面状態の表面にミクロ的な窪みを形成することができる。
【0011】
上記表面層の爆裂は、レーザ照射に伴う急加熱と冷却によって発生する熱衝撃に起因するものである。
ここで、床用基材の素材が石材やガラスからなる場合には、基材の素材によっては、上記のようにレーザで窪みを形成する際の熱によって、窪みの周りにミクロなひび割れが生じる場合がある。このひび割れがあると、光が乱反射して白っぽく見えることから鏡面状態の床材に影響を与える。
【0012】
これに対し、窪みを形成する面に水膜などの冷却剤の層などが形成されている状態でレーザ光を照射する場合には、上記レーザ照射による熱を冷却剤水が吸収して、上記ひび割れを抑える。この結果、窪みの周りが白っぽく見えることを防止できる。
ここで、上記最大幅の窪みを形成するためのレーザ光の設定は、例えば、エネルギーを0.2〜0.6ジュールに設定し照射時間を0.002〜0.005秒に設定することで可能である。
【0013】
また、窪みの最大幅や間隔については、次の理由から規定したものである。
鏡面仕上げの表面に種々の寸法の窪みを形成してみたところ、窪みの最大幅を800μmとしても、表面の光沢度への影響が小さかったので、窪みの最大幅の上限値を800μmとしている。
ただし、窪みの最大幅を800μmとした場合に、窪みの間隔が1mm未満と小さすぎる場合には、肉眼において鏡面状態の表面の光沢度が損なわれ始めたので、窪みの間隔を1mm以上に規定している。
【0014】
一方、窪みの最大幅を500μmとした場合に、窪みの間隔が5mmを超えると、滑り防止効果が薄れてきたため、窪みの間隔の上限値を5mmと規定している。
このように、窪みの間隔を1〜5mmと広めに設定した場合において、窪みの最大幅を500〜800μmの範囲に特定することで、肉眼による光沢度を良好にしながら、充分な滑り防止効果が得られる。
【0015】
【発明の実施の形態】
次に、本発明の実施形態について図面を参照しつつ説明する。
板状の石材からなる基材表面について鏡面仕上げ加工を施した後、図1に示すように、基材1の表面に水を噴霧するなどによって水の膜2を形成して当該基材1の表面に冷却剤を付与した状態でレーザ光3を照射し、レーザ光3が当たった箇所の表面層を瞬時に爆裂させることで、基材1の表面にミクロ的な窪み4を形成する。
【0016】
上記ミクロな窪み4を形成する作業を基材1の表面に沿って繰り返すことで、表面全体に多数の窪み4が形成される。
このとき、基材1の表面での各窪み4の最大幅が、500(μm)〜800(μm)の範囲の大きさとなるように、レーザのエネルギー密度や照射時間を設定する。なお、各窪み4の断面形状は、最大幅が上記範囲となっていれば、円形や矩形など、特に限定されない。
【0017】
また、基材1若しくはレーザ光の出力部5のどちらか一方を相対移動させる際の移動距離等を調整することで、隣り合う窪みの間隔が、1(mm)〜5(mm)の範囲に収まるように設定する。
ここで、使用するレーザの種類は特に限定されない。鏡面仕上げの基材1の表面で爆裂を引き起こすためのエネルギー密度を保有するレーザ光であれば、炭酸ガスレーザ、Nd−YAGレーザ、エキシマ−レーザ、半導体レーザなど各種レーザが使用できる。
【0018】
また、レーザ光3があたった箇所の表面層を瞬時に爆裂させてミクロ的な窪み4を設けるために必要なレーザ光3のエネルギー密度(=レーザ光の平均出力(ワット)/基材表面上のレーザ光の面積(cm2 ))は小さく、数千ワット/cm2 のオーダーであれば充分である。表面を爆裂させて上記最大幅の範囲の窪み4を形成するために必要なレーザ光のエネルギーは、対象とする基材の種類にもよるが、0.2〜0.6ジュール(J)で、且つ照射時間を0.002〜0.005秒に設定すればよい。
【0019】
レーザ光3のエネルギーが0.2ジュール未満、または照射時間が0.002秒未満だと、熱衝撃が弱く、表面爆裂が発生し難くなるため、必要な幅の窪み4が形成され難くなり、充分な滑り止め効果が得られないおそれがある。一方、レーザ光3のエネルギーが0.6ジュールを超えたり、照射時間が0.00秒を超える場合には、窪み4の最大幅が必要以上に大きくなり、基材1の光沢度が損なわれるおそれがある。
【0020】
ここで、レーザの出力は連続出力でも、パルス出力でも良いが、制御性や作業性の観点からは、パルス出力レーザを使用することが便利である。
本実施形態で使用するレーザのエネルギー密度は小さく照射時間が短いため、基材1への熱影響は小さく、したがって基材1の強度低下やひび割れの心配は小さい。
【0021】
ただし、基材中にSiO2 などの成分が含有している場合には、図2に示すように、上記レーザによる熱衝撃で窪み4の周りにミクロなひび割れ6が生じ、そのひび割れ6で光が乱反射して窪み4の周りが白っぽく見えることがあり、このようなことは、床の意匠性に影響を与える。なお、図1及び図2における破線内は、熱の影響を受ける範囲を模式的に示したものである。
【0022】
これに対し、本実施形態では、水の層2がレーザ照射部に付与されていることから、上記熱衝撃時の熱が水の蒸発熱として吸収されて、基材1の熱劣化が抑えられる。この結果、上記現象が抑えられてきれいな窪み4を形成することができる。基材1の表面への水の付与は、噴霧でも良いし、水を掛けることでも良い。また、冷却剤は水に限定されず、冷却された窒素などであっても良い。
【0023】
上記のように鏡面状態の表面にミクロな窪み4を全面に亘って形成した床材を、建物の床面や階段の踏み板表面など、人が歩く部分に使用する。
上記構成の床材にあっては、表面が鏡面状態に維持しつつ、当該表面に滑り防止加工を施すことができる。この結果、建物の意匠性に影響を与えず床を滑り難くすることが可能となる。
【0024】
また、上記のように滑り防止効果を有するが、窪み4の間隔が1mm〜5mmと広め目に設定されていることから、形成する窪み4の個数が抑えられるので、その分、滑り防止加工の作業性が良い。
ここで、上記実施形態では、基材1の素材として石材を例示しているが、ガラスであっても良い。
【0025】
【実施例】
以下、実施例により本発明を更に詳しく説明する。
大きさ30cm×30cm×3cmの本磨き仕上げ黒御影石1の表面に対し、集光したレーザ光を相対的に移動させながらレーザ照射を繰り返し実施して窪み4を形成した。
【0026】
使用したレーザはパルス出力の炭酸ガスレーザである。レーザ照射条件を表1に示す。
【0027】
【表1】

Figure 0004107565
【0028】
また、レーザ照射方法を図3を参照しつつ説明する。
レーザ光を、図3に示すように、基材表面に対し直角に照射しながら、当該図3におけるX方向に毎秒250mmの速度で御影石1の表面に沿って移動させた。
ここで、レーザのパルス周波数が166.667Hzであるので、250÷166.667≒1.5mm間隔で、上記御影石1の表面にレーザ光が照射されることとなる。レーザパルスの波形を図4に示す。
【0029】
これによって、X方向に沿って、1.5mm間隔おきに窪み4が形成され、もって1列目の窪み群が形成される。このとき、各窪み4の幅の最大寸法はほぼ600ミクロンであった。
上記のように1列の窪み群を形成する度に、レーザ光の照射位置をY方向に2mmずらして、上記の条件下でレーザ照射を行う。これを、順次繰り返すことにより、図5に示すように、御影石1の表面全体に多数の窪み4を設けた。
【0030】
上記のようにして滑り防止加工を施した本磨き仕上げ御影石を、数枚用意して床に敷設した。比較のために、上記滑り防止加工を施していない本磨き仕上げのままの御影石について、別途数枚用意して床に敷設した。
そして、2つの床について、同じ条件下で、雨ぬれ、または油ぬれの状態を再現し、滑り具合について実験的に調べたところ、本願発明に基づき滑り防止加工を施した床は、滑り防止加工を施していない床に比べて大幅に滑り難くなっていた。
【0031】
また、両方の床について、1〜1.5mの高さ(人間の目の位置の高さ)から垂直下方または斜め下方に向けて肉眼で見た場合の光沢度を調べたところ、本磨き仕上げのままの床面の光沢度と、レーザ加工を施し窪みを設けた床面との光沢度との間に差が見られなかった。
すなわち、本願発明に基づく滑り防止加工は、床材表面の光沢度を損なわないまま滑り止め効果を得ることができることが分かった。
【0032】
【発明の効果】
以上説明してきたように、本発明を採用すると、床材表面の光沢度を損なうことなく滑り防止効果を付与することが可能となる。
【図面の簡単な説明】
【図1】本発明に基づく第1実施形態に係る滑り防止加工を説明するための図である。
【図2】水膜を形成しない場合の問題を説明する図である。
【図3】実施例における窪み形成を説明する図である。
【図4】実施例におけるレーザパルスの波形を示す図である。
【図5】実施例における窪みを形成した状態を説明する図である。
【符号の説明】
1 基材
2 水膜(冷却剤)
3 レーザ光
4 窪み[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor of a building, a step board of a staircase, a floor material for forming a surface of a sidewalk, and a slip prevention processing method for the floor material.
[0002]
[Prior art]
Generally, when making a floor surface difficult to slip, the surface finish of the floor material which forms a floor surface is roughly processed, and the slip prevention effect is provided.
[0003]
[Problems to be solved by the invention]
Here, from the viewpoint of the design of the building space, a mirror-finished polished stone material is often used as a flooring material.
However, if the surface finish of the mirror-finished floor material is roughened for the purpose of making it difficult to slip, there is a problem that the luster of the floor material is lost and the design properties are affected.
[0004]
Recently, the use of thick glass as a flooring material has increased the use of a light-transmitting floor. In order to make the surface of the floor material made of glass difficult to slip, a matte finish is often applied. However, the matte finish has a problem that the translucency is impaired.
The present invention has been made in view of such points, and it is an object of the present invention to provide a flooring material that has been subjected to an antislip treatment without impairing the mirror surface state, and a method for preventing the slipping of such a flooring material. Yes.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following features.
[0006]
The invention described in claim 1, 800 of the surface of the mirror surface condition of the floor base shall be the material of stone or glass, in order to maintain the glossiness, the upper limit of the maximum width of the substrate surface of the depression (Μm) When the lower limit of the interval between adjacent depressions is set to 1 (mm), and the maximum width is set to the lower limit of 500 (μm) in order to exert an anti-slip effect. Sequentially sets the irradiation position of pulsed laser light in which the energy is set to 0.2 to 0.6 Joule and the irradiation time is set to 0.002 to 0.005 seconds so that the upper limit of the interval is 5 (mm). By irradiating so as to move relative to each other and by blasting the irradiated portions at intervals by the thermal shock to form a plurality of dents, the most of each dent formed on the surface of the mirror-like floor base material is formed. Within the range between the lower limit and the upper limit, Is a flooring material that is substantially uniform.
[0007]
Next, the invention described in claim 2 is different from the structure described in claim 1 in that the floor base material is SiO.
2
When component is contained, in a pre-state of the laser beam was applied to permeable coolant by performing irradiation before Symbol pulsed laser light, no micro cracks around the depression due to thermal shock by laser bed It is characterized by being made of material .
As the coolant capable of transmitting the laser beam, water is preferable because it is simple (low cost and easy to use), but is not limited to liquid, and is made of a gas such as cooled air or a solid such as ice. It may be an agent. In short, any coolant may be used as long as it transmits laser light and can absorb the heat of the substrate surface at the position irradiated with the laser light.
[0009]
Here, the reason why the maximum width of each depression is defined “on the surface of the substrate” is because the width may be smaller than the above width inside the depression.
The maximum width refers to the diameter when the cross section of the dent is circular, the major axis when it is elliptical, and the length of the diagonal line when it is rectangular. There is no limitation in particular in the cross-sectional shape of a hollow.
Moreover, the space | interval of the said hollow is a distance which connects the center of two adjacent hollows. In terms of the number of depressions per square centimeter, in the present invention, it is less than 100 and 4 or more.
[0010]
According to the present invention, by forming a plurality of depressions under the conditions as described above, the floor surface can be in a state of being subjected to anti-slip processing without impairing the mirror surface state (surface glossiness).
In addition, by irradiating the floor base material with the focused laser beam, the surface layer at the location where the laser hits is instantaneously exploded, so that a microscopic depression can be formed on the mirror surface.
[0011]
The explosion of the surface layer is caused by thermal shock generated by rapid heating and cooling accompanying laser irradiation.
Here, when the material for the floor base material is made of stone or glass, depending on the material of the base material, micro cracks are generated around the depression due to the heat generated when the depression is formed by the laser as described above. There is a case. If there are cracks, the light is diffusely reflected and looks whitish, which affects the mirrored flooring.
[0012]
On the other hand, when irradiating a laser beam in a state where a coolant layer such as a water film is formed on the surface where the depression is formed, the coolant water absorbs the heat from the laser irradiation, and the above Reduce cracking. As a result, it can be prevented that the periphery of the depression looks whitish.
Here, the setting of the laser beam for forming the maximum width depression is, for example, by setting the energy to 0.2 to 0.6 Joule and the irradiation time to 0.002 to 0.005 seconds. Is possible.
[0013]
Further, the maximum width and interval of the recesses are defined for the following reason.
When recesses of various dimensions were formed on the mirror-finished surface, even if the maximum width of the recesses was set to 800 μm, the effect on the glossiness of the surface was small, so the upper limit value of the maximum width of the recesses was set to 800 μm.
However, when the maximum width of the recesses is set to 800 μm and the interval between the recesses is too small, less than 1 mm, the glossiness of the mirror surface has begun to be damaged by the naked eye, so the interval between the recesses is specified to be 1 mm or more. is doing.
[0014]
On the other hand, when the maximum width of the recesses is 500 μm, if the interval between the recesses exceeds 5 mm, the anti-slip effect has diminished, so the upper limit value of the recess interval is defined as 5 mm.
As described above, when the interval between the recesses is set to be as wide as 1 to 5 mm, by specifying the maximum width of the recesses in the range of 500 to 800 μm, it is possible to provide a sufficient anti-slip effect while improving glossiness with the naked eye. can get.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
After the mirror surface finishing process is performed on the surface of the base material made of plate-like stone material, a water film 2 is formed by spraying water on the surface of the base material 1 as shown in FIG. By irradiating the laser beam 3 with the coolant applied to the surface and instantly exploding the surface layer where the laser beam 3 hits, a microscopic depression 4 is formed on the surface of the substrate 1.
[0016]
By repeating the operation of forming the micro depressions 4 along the surface of the substrate 1, a large number of depressions 4 are formed on the entire surface.
At this time, the energy density and irradiation time of the laser are set so that the maximum width of each recess 4 on the surface of the substrate 1 is in the range of 500 (μm) to 800 (μm). The cross-sectional shape of each recess 4 is not particularly limited as long as the maximum width is within the above range, such as a circle or a rectangle.
[0017]
Further, by adjusting the movement distance or the like when the substrate 1 or the laser beam output unit 5 is relatively moved, the interval between adjacent recesses is in the range of 1 (mm) to 5 (mm). Set to fit.
Here, the type of laser used is not particularly limited. Various lasers such as a carbon dioxide gas laser, an Nd-YAG laser, an excimer laser, and a semiconductor laser can be used as long as the laser light has an energy density for causing explosion on the surface of the mirror-finished substrate 1.
[0018]
The laser beam 3 of the energy density required for the surface layer of the portion where the laser beam 3 hits in instantly by explosion cleft providing microscopic recesses 4 (= average output power of the laser beam (W) / substrate surface The area of the upper laser beam (cm 2 ) is small, and it is sufficient if it is on the order of several thousand watts / cm 2 . The energy of the laser beam necessary for blasting the surface to form the depression 4 having the maximum width is 0.2 to 0.6 Joule (J), depending on the type of the target substrate. And irradiation time should just set to 0.002-0.005 second.
[0019]
If the energy of the laser beam 3 is less than 0.2 Joule or the irradiation time is less than 0.002 seconds, the thermal shock is weak and surface explosion is difficult to occur, so that the depression 4 having a necessary width is difficult to be formed. There is a possibility that a sufficient anti-slip effect cannot be obtained. On the other hand, if the energy exceeds the 0.6 joules of laser light 3, if the irradiation time exceeds 0.00 5 seconds, the maximum width of the recess 4 is larger than necessary, the gloss of the substrate 1 is impaired There is a risk of being.
[0020]
Here, the laser output may be a continuous output or a pulse output, but it is convenient to use a pulse output laser from the viewpoint of controllability and workability.
Since the energy density of the laser used in this embodiment is small and the irradiation time is short, the thermal influence on the base material 1 is small, and therefore there is little concern about the strength reduction or cracking of the base material 1.
[0021]
However, when a component such as SiO 2 is contained in the base material, as shown in FIG. 2, a microcrack 6 is generated around the recess 4 by the thermal shock caused by the laser, and light is emitted from the crack 6. May be diffusely reflected and the surroundings of the depression 4 may appear whitish, which affects the design of the floor. In addition, the inside of the broken line in FIG.1 and FIG.2 shows typically the range which receives the influence of a heat | fever.
[0022]
On the other hand, in this embodiment, since the water layer 2 is provided to the laser irradiation part, the heat at the time of the thermal shock is absorbed as the heat of water evaporation, and the thermal deterioration of the base material 1 is suppressed. . As a result, the above phenomenon can be suppressed and a beautiful recess 4 can be formed. Water may be applied to the surface of the substrate 1 by spraying or by applying water. The coolant is not limited to water, and may be cooled nitrogen or the like.
[0023]
As described above, the floor material in which the micro-dent 4 is formed on the entire surface of the mirror surface is used for a part where a person walks such as a floor surface of a building or a tread surface of a staircase.
In the flooring having the above-described configuration, the surface can be subjected to anti-slip processing while the surface is maintained in a mirror state. As a result, it is possible to make the floor difficult to slide without affecting the design of the building.
[0024]
Moreover, although it has an anti-slip effect as described above, since the interval between the recesses 4 is set to be 1 mm to 5 mm, the number of the recesses 4 to be formed can be reduced. Good workability.
Here, in the said embodiment, although the stone material is illustrated as a raw material of the base material 1, glass may be sufficient.
[0025]
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples.
Recesses 4 were formed by repeatedly performing laser irradiation on the surface of the final polished black granite 1 having a size of 30 cm × 30 cm × 3 cm while relatively moving the focused laser beam.
[0026]
The laser used is a pulsed carbon dioxide laser. Table 1 shows the laser irradiation conditions.
[0027]
[Table 1]
Figure 0004107565
[0028]
A laser irradiation method will be described with reference to FIG.
As shown in FIG. 3, the laser beam was moved along the surface of the granite 1 at a speed of 250 mm per second in the X direction in FIG.
Here, since the pulse frequency of the laser is 166.667 Hz, the surface of the granite 1 is irradiated with laser light at intervals of 250 ÷ 166.667≈1.5 mm. The waveform of the laser pulse is shown in FIG.
[0029]
As a result, the depressions 4 are formed at intervals of 1.5 mm along the X direction, thereby forming the first row of depression groups. At this time, the maximum width of each recess 4 was approximately 600 microns.
Each time a row of depressions is formed as described above, the laser irradiation is performed under the above-mentioned conditions by shifting the irradiation position of the laser light by 2 mm in the Y direction. By repeating this sequentially, as shown in FIG. 5, a large number of depressions 4 were provided on the entire surface of the granite 1.
[0030]
Several polished granites with anti-slip treatment as described above were prepared and laid on the floor. For comparison, several pieces of granite with a polished surface that was not subjected to the anti-slip process were prepared and laid on the floor.
The two floors were reproduced under wet conditions and wet conditions under the same conditions, and when the slip condition was experimentally examined, the floor subjected to the anti-slip process according to the present invention is an anti-slip process. It was much harder to slide than a floor that had not been given.
[0031]
In addition, for both floors, we examined the glossiness when viewed with the naked eye from a height of 1 to 1.5 m (height of the human eye) vertically downward or diagonally below. There was no difference between the glossiness of the floor surface as it was and the glossiness of the floor surface that had been laser processed and provided with a depression.
That is, it has been found that the anti-slip processing based on the present invention can obtain an anti-slip effect without impairing the glossiness of the floor material surface.
[0032]
【The invention's effect】
As described above, when the present invention is adopted, it is possible to impart an anti-slip effect without impairing the glossiness of the floor material surface.
[Brief description of the drawings]
FIG. 1 is a view for explaining slip prevention processing according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating a problem when a water film is not formed.
FIG. 3 is a diagram illustrating formation of a recess in an example.
FIG. 4 is a diagram showing a waveform of a laser pulse in the example.
FIG. 5 is a diagram illustrating a state in which a recess is formed in an example.
[Explanation of symbols]
1 Base material 2 Water film (cooling agent)
3 Laser light 4 Dimple

Claims (2)

石材若しくはガラスを素材とる床用基材の鏡面状態の表面に対し、光沢度を保つために、窪みの基材表面における最大幅を上限値の800(μm)とするときは隣り合う窪みの間隔の下限値を1(mm)とするように、また、滑り防止効果を発揮するために、前記最大幅を下限値の500(μm)とするときは前記間隔の上限値を5(mm)とするように、エネルギーを0.2〜0.6ジュールに、照射時間を0.002〜0.005秒に設定したパルスレーザ光を照射位置を順次相対移動するように照射し、その熱衝撃によって間隔を置いて照射した箇所を爆裂させて複数の窪みを形成することで、前記鏡面状態の床用基材の表面に形成された各窪みの最大幅と間隔が、前記下限値と上限値の範囲内においてほぼ均一とされている材。 The surface of the mirror surface condition of the floor base shall be the material of stone or glass, depression in order to maintain the glossiness, when the 800 limit the maximum width of the substrate surface of the depression ([mu] m) adjacent In order to set the lower limit value of the distance to 1 (mm) and to exhibit the anti-slip effect, when the maximum width is set to the lower limit value of 500 (μm), the upper limit value of the distance is set to 5 (mm). ) And the pulse laser beam with the energy set to 0.2 to 0.6 Joule and the irradiation time set to 0.002 to 0.005 seconds so as to sequentially move the irradiation position relative to each other. The maximum width and interval of each depression formed on the surface of the floor substrate in the mirror surface state is formed by blasting the irradiated portions at intervals by impact to form the plurality of depressions , the lower limit value and the upper limit Floor material that is almost uniform within the range of values . 前記床用基材がSiO 成分を含有しているとき、予めレーザ光を透過可能な冷却剤を付与した状態で、パルスレーザ光の照射を行うことで、レーザによる熱衝撃による窪みの周りのミクロなひび割れのない請求項1に記載された床材。 When the floor base material contains a SiO 2 component, advance the laser beam while applying a permeable coolant by performing irradiation before Symbol pulsed laser beam, the indentations due to thermal shock by laser The flooring according to claim 1, wherein there is no surrounding microcracking .
JP2002103702A 2002-04-05 2002-04-05 Flooring Expired - Lifetime JP4107565B2 (en)

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