JPH1082023A - Light-accumulating road marking material - Google Patents
Light-accumulating road marking materialInfo
- Publication number
- JPH1082023A JPH1082023A JP8239184A JP23918496A JPH1082023A JP H1082023 A JPH1082023 A JP H1082023A JP 8239184 A JP8239184 A JP 8239184A JP 23918496 A JP23918496 A JP 23918496A JP H1082023 A JPH1082023 A JP H1082023A
- Authority
- JP
- Japan
- Prior art keywords
- light
- layer
- pigment
- luminous
- accumulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発光輝度が高く、
暗所での視認性に優れた蓄光性道路標示材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a luminous road marking material having excellent visibility in a dark place.
【０００２】[0002]
【従来の技術】従来、暗所での視認性を得るための手段
として、蓄光性顔料が利用されている。蓄光性顔料は、
太陽光や電灯の光エネルギーを吸収して蓄え、数時間に
わたってそのエネルギーを再び光として外部に放出する
もので、夜間や暗闇において有用な蓄光性道路標示材に
使用されている。2. Description of the Related Art Conventionally, luminous pigments have been used as means for obtaining visibility in a dark place. Luminescent pigments are
It absorbs and stores the light energy of sunlight and electric lights and emits the energy again as light over several hours, and is used as a luminous road marking material useful at night or in the dark.
【０００３】例えば、特開昭５２−８９１３７号公報に
は、熱可塑性樹脂に、硫化亜鉛／銅系（ＺｎＳ／Ｃｕ）
等の蓄光性顔料（蓄光性粉末）及び必要に応じて任意の
色調の顔料を加え、これを均一に混合してなる熱溶着性
蓄光ペイント（トラフィックペイントなど）が提案され
ている。For example, Japanese Patent Application Laid-Open No. 52-89137 discloses that a thermoplastic resin contains zinc sulfide / copper (ZnS / Cu).
There has been proposed a heat-welding luminous paint (traffic paint, etc.) obtained by adding a luminous pigment (luminous powder) and a pigment having an arbitrary color tone as required and uniformly mixing them.
【０００４】また、特開昭４９−１７１９７号公報に
は、基板上に合成樹脂系の接着剤層を形成し、これにガ
ラス粒子を埋め込み、さらに接着剤層とガラス粒子の少
なくとも一方に発光物質を混入してなる路面標識体が提
案されている。Japanese Patent Application Laid-Open No. 49-17197 discloses a method in which a synthetic resin-based adhesive layer is formed on a substrate, glass particles are buried in the adhesive layer, and a luminescent material is provided on at least one of the adhesive layer and the glass particles. Has been proposed.
【０００５】[0005]
【発明が解決しようとする課題】この種の従来の蓄光性
道路標示材にあって、発光輝度を高め暗所での視認性を
改善するために、蓄光性顔料の含有量を増したり、蓄光
性樹脂層の厚みを増しても、蓄光性顔料の有する隠蔽性
のため、発光輝度は比較的低い水準で飽和してしまい、
十分に満足できる程度の高い発光輝度は得られない。SUMMARY OF THE INVENTION In this kind of conventional luminous road marking material, in order to increase luminous brightness and improve visibility in dark places, the content of luminous pigment is increased or luminous Even if the thickness of the conductive resin layer is increased, because of the concealing property of the luminous pigment, the emission luminance is saturated at a relatively low level,
A sufficiently satisfactory high emission luminance cannot be obtained.
【０００６】本発明は、上記問題を解決するものであ
り、その目的とするところは、発光輝度が高く、暗所で
の視認性に優れた蓄光性道路標示材を提供することにあ
る。An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a luminous road marking material having high light emission luminance and excellent visibility in a dark place.
【０００７】[0007]
【課題を解決するための手段】上記の目的は、白色又は
黄色基材層の上に、全光線透過率が２５％以上の粉末又
は粒子を含有する透明乃至半透明の光散乱層が設けら
れ、その上に蓄光性顔料を含有する透明乃至半透明の蓄
光層が設けられていることを特徴とする蓄光性道路標示
材によって、達成することができる。The object of the present invention is to provide a transparent or translucent light-scattering layer containing powder or particles having a total light transmittance of 25% or more on a white or yellow base layer. A transparent or translucent luminous layer containing a luminous pigment is provided thereon, which can be achieved by a luminous road marking material.
【０００８】本発明において、白色又は黄色基材層は、
ゴム又は樹脂に、酸化チタンのような白色顔料やクロム
イエローのような黄色顔料を含有させることにより得ら
れる。顔料として酸化チタン或いはクロムイエローを用
いる場合は、２〜２０重量％が含有されるのが好まし
い。In the present invention, the white or yellow base material layer comprises
It is obtained by adding a white pigment such as titanium oxide or a yellow pigment such as chrome yellow to rubber or resin. When titanium oxide or chrome yellow is used as the pigment, the content is preferably 2 to 20% by weight.
【０００９】光散乱層は、透明乃至半透明のゴム又は樹
脂に、全光線透過率が２５％以上の粉末又は粒子を含有
させることにより得られる。ここで、上記粉末又は粒子
とは、光の照射により乱反射可能な光透過性の或いは再
帰反射可能な光透過性の粉末又は粒子を意味する。上記
粉末又は粒子の全光線透過率が２５％を下回ると、本発
明の効果が十分に得られない。特に、全光線透過率が３
５％以上の粉末又は粒子が好ましい。The light scattering layer is obtained by adding a powder or a particle having a total light transmittance of 25% or more to a transparent or translucent rubber or resin. Here, the above-mentioned powder or particle means a light-transmitting powder or particle capable of irregularly reflecting by light irradiation or a light-transmitting powder capable of retroreflection. If the total light transmittance of the powder or particles is less than 25%, the effect of the present invention cannot be sufficiently obtained. In particular, the total light transmittance is 3
Powders or particles of 5% or more are preferred.
【００１０】このような光散乱層に含有される粉末又は
粒子としては、ガラスビーズ、ガラス粉、シリカ、マイ
カ等の無機粉末又は粒子、或いはアクリルビーズ、スチ
レンビーズ、セルロース、澱粉等の有機粉末又は粒子が
挙げられる。As the powder or particles contained in such a light scattering layer, inorganic powders or particles such as glass beads, glass powder, silica, mica, or organic powders such as acrylic beads, styrene beads, cellulose, starch, etc. Particles.
【００１１】上記粉末又は粒子の形状は、球状、楕円
状、多角形状、円柱状、角柱状、鱗片状、薄片状などい
かなる形状であってもいよい。特に、球状のものは光を
効率良く反射、散乱させることができるので好適であ
る。粉末又は粒子の大きさは特に限定されない。The shape of the powder or particle may be any shape such as a sphere, an ellipse, a polygon, a column, a prism, a scale, and a flake. In particular, spherical ones are suitable because they can efficiently reflect and scatter light. The size of the powder or particle is not particularly limited.
【００１２】上記粉末又は粒子の含有量は、光散乱層に
対して１０〜８０重量％が好ましく、１５〜６０重量％
がさらに好ましい。含有量が１０重量％に満たないと、
本発明の効果が十分に得られず、逆に８０重量％を越え
ると、上記粉末又は粒子がゴム又は樹脂から脱離しやす
くなる。The content of the above powder or particles is preferably 10 to 80% by weight, and more preferably 15 to 60% by weight based on the light scattering layer.
Is more preferred. If the content is less than 10% by weight,
If the effect of the present invention is not sufficiently obtained, and if the content exceeds 80% by weight, the powder or the particles is easily detached from the rubber or the resin.
【００１３】蓄光層は、透明乃至半透明のゴム又は樹脂
に、蓄光性顔料を含有させることにより得られる。ここ
で、蓄光性顔料とは、燐光現象を有する物質からなり、
太陽光や電灯などの光を吸収し蓄積し、その蓄積した光
を徐々に放出し発光し、光の吸収−蓄積−発光を何度の
繰り返すことができるもの意味する。The luminous layer can be obtained by adding a luminous pigment to a transparent or translucent rubber or resin. Here, the luminous pigment is composed of a substance having a phosphorescent phenomenon,
It means that it absorbs and accumulates light such as sunlight or electric light, gradually releases and emits the accumulated light, and can repeat light absorption-accumulation-emission several times.
【００１４】このような蓄光性顔料としては、従来より
広く使用されている硫化カルシウム／ビスマス系（Ｃａ
Ｓ／Ｂｉ）、硫化カルシウム・ストロンチウム／ビスマ
ス系〔（Ｃａ，Ｓｒ）Ｓ／Ｂｉ）、硫化亜鉛／銅系（Ｚ
ｎＳ／Ｃｕ）、硫化亜鉛・カドミウム／銅系〔（Ｚｎ，
Ｃｄ）Ｓ／Ｃｕ〕を用いることができる。As such a luminous pigment, calcium sulfide / bismuth (Ca), which has been widely used in the past, is used.
S / Bi), strontium / bismuth based on calcium sulfide [(Ca, Sr) S / Bi), based on zinc sulfide / copper (Z
nS / Cu), zinc sulfide / cadmium / copper [(Zn,
Cd) S / Cu] can be used.
【００１５】しかし、環境面や蓄光輝度や蓄光時間等の
蓄光性能及び耐候性や長期安定性の観点から、アルミ
ナ、酸化ストロンチウム、酸化バリウム、酸化カルシウ
ム、酸化セリウム等の金属酸化物とＥｕ（ユーロピウ
ム）、Ｄｙ（ジスプロシウム）、Ｌｕ（ルテチウム）、
Ｔｂ（テルビウム）等の希土類元素とを焼成してなる蓄
光性顔料を用いるのが好ましい。このような蓄光性顔料
としては、例えば、根本特殊化学社製の「Ｎ夜光ルミノ
ーバ」や日本ケミックス社製の「ケミカラーＮＬ」など
が挙げられる。However, from the viewpoints of the luminous performance such as the environment, luminous luminance and luminous time, weather resistance and long-term stability, metal oxides such as alumina, strontium oxide, barium oxide, calcium oxide and cerium oxide and Eu (europium) are used. ), Dy (dysprosium), Lu (lutetium),
It is preferable to use a luminous pigment obtained by firing a rare earth element such as Tb (terbium). Examples of such a luminous pigment include "N Night Luminous Nova" manufactured by Nemoto Special Chemical Co., Ltd., and "Chemicolor NL" manufactured by Nippon Chemix.
【００１６】これ等の蓄光性顔料の粒子の形状は特に限
定されない。粒子の大きさは、蓄光層の厚さ等により左
右されるが、一般に、２０〜４００メッシュの範囲が好
ましい。粒子の大きさが２０メッシュに満たない場合
は、蓄光性道路標示材をシート状に成形する際に亀裂が
発生しやすくなり、逆に４００メッシュを越えると、粒
子同士が凝集して分散しにくくなる。The shape of the particles of these luminous pigments is not particularly limited. The size of the particles depends on the thickness of the luminous layer and the like, but is generally preferably in the range of 20 to 400 mesh. If the size of the particles is less than 20 mesh, cracks are likely to occur when the phosphorescent road marking material is formed into a sheet, and if it exceeds 400 mesh, the particles are less likely to aggregate and disperse. Become.
【００１７】上記蓄光性顔料の含有量は、蓄光性顔料の
種類や粒径に左右されるが、蓄光層３〜６０重量％が好
ましく、３〜５０重量％がさらに好ましく、３〜４０重
量％がさらに好ましい。含有量が３重量％に満たない
と、蓄光性顔料の絶対量が不足して十分な発光輝度が得
られず、逆に６０重量％を越えると、蓄光性顔料による
隠蔽率が大きくなって本発明の効果が十分に得られな
い。The content of the luminous pigment depends on the kind and particle size of the luminous pigment, but is preferably 3 to 60% by weight, more preferably 3 to 50% by weight, and more preferably 3 to 40% by weight. Is more preferred. When the content is less than 3% by weight, the absolute amount of the luminous pigment is insufficient, so that sufficient luminous brightness cannot be obtained. The effect of the invention cannot be sufficiently obtained.
【００１８】上述の白色又は黄色基材層を構成するゴム
又は樹脂としては、通常、透明乃至半透明のゴム又は樹
脂が用いられるが、白色或いは黄色の色合いを損なわな
い範囲で不透明なゴム又は樹脂を用いることもできる。
また、光散乱層及び蓄光層を構成するゴム又は樹脂とし
ては、透明乃至半透明のゴム又は樹脂が用いられる。こ
れ等のゴム又は樹脂は、道路標示材に要求される物性、
主に引張り強度、曲げ強度、耐磨耗性、耐候性、耐水
性、耐久性等の物性を満足するものでなければならな
い。As the rubber or resin constituting the above-mentioned white or yellow base material layer, a transparent or translucent rubber or resin is usually used, but an opaque rubber or resin is used as long as the color of white or yellow is not impaired. Can also be used.
As the rubber or resin constituting the light scattering layer and the light storage layer, a transparent or translucent rubber or resin is used. These rubbers or resins are required for the physical properties required for road marking materials,
It must satisfy properties such as tensile strength, bending strength, abrasion resistance, weather resistance, water resistance, and durability.
【００１９】ここで、ゴムとしては、例えば、イソプレ
ンゴム、ウレタンゴム、アクリルゴム、スチレン−イソ
プレン−スチレンブロック共重合体などの合成ゴム或い
は天然ゴムが用いられる。Here, as the rubber, for example, synthetic rubber such as isoprene rubber, urethane rubber, acrylic rubber, styrene-isoprene-styrene block copolymer or natural rubber is used.
【００２０】また、樹脂としては、ポリ塩化ビニル、ポ
リ塩化ビニリデン、（メタ）アクリル樹脂、エポキシ樹
脂、ポリスチレン、ポリウレタン、ポリカーボネート、
フッ素樹脂、アクリルシリコーン樹脂、石油樹脂、ウレ
タン変性アルキド樹脂、マレイン酸変性ロジンエステ
ル、クマロンインデン樹脂、テルペン樹脂、不飽和ポリ
エステル等の合成樹脂或いは天然樹脂が用いられる。As the resin, polyvinyl chloride, polyvinylidene chloride, (meth) acrylic resin, epoxy resin, polystyrene, polyurethane, polycarbonate,
Synthetic resins or natural resins such as fluororesin, acrylic silicone resin, petroleum resin, urethane-modified alkyd resin, maleic acid-modified rosin ester, coumarone indene resin, terpene resin and unsaturated polyester are used.
【００２１】光散乱層及び蓄光層を構成するゴム又は樹
脂としては、これ等のゴム又は樹脂のなかでも、特に透
明性に優れた（メタ）アクリル樹脂、エポキシ樹脂、ポ
リスチレンの中から同種の樹脂を用いるのが好適であ
る。白色又は黄色基材層を構成するゴム又は樹脂には透
明性は要求されないが、接着性の点から光散乱層及び蓄
光層を構成する樹脂と同種の樹脂を用いるのが望まし
い。As the rubber or resin constituting the light scattering layer and the light storage layer, among these rubbers or resins, the same type of resin is preferably selected from among (meth) acrylic resin, epoxy resin and polystyrene which are particularly excellent in transparency. It is preferred to use The rubber or resin constituting the white or yellow base layer is not required to have transparency, but it is desirable to use the same resin as the resin constituting the light scattering layer and the light storage layer from the viewpoint of adhesiveness.
【００２２】なお、白色又は黄色基材層としては、ＪＩ
Ｓ Ｋ５６６５ １種、２種、３種に準じるような路面
標示塗料（トラフィックペイント）をそのまま用いるこ
ともできる。この場合は、コスト的に有利となる。The white or yellow base material layer is JI
SK5665 A road marking paint (traffic paint) according to one, two, or three types can also be used as it is. In this case, it is advantageous in terms of cost.
【００２３】また、蓄光層は光散乱層の表面の全面に形
成せずに、光散乱層の表面に部分的に形成してもよい。
また、蓄光層には、再起反射性を付与するために、蓄光
性粒子とともに再起反射性のガラスビーズを含有させる
ことができる。The light storage layer may not be formed on the entire surface of the light scattering layer, but may be formed partially on the surface of the light scattering layer.
In addition, the light-storing layer may contain glass beads having a light-reflecting property together with the light-storing particles in order to impart the light-reflecting property.
【００２４】蓄光性道路標示材の全体の厚さは、０．５
ｍｍ以上が好ましく、０．７ｍｍ以上がさらに好まし
い。全体の厚さが０．５ｍｍに満たないと、強度や耐久
性が問題になることがある。The total thickness of the luminous road marking material is 0.5
mm or more is preferable, and 0.7 mm or more is more preferable. If the total thickness is less than 0.5 mm, strength and durability may become problems.
【００２５】本発明の蓄光性道路標示材は、白色又は黄
色基材層と光散乱層と蓄光層とを別々にシート状に押出
成形或いはキャスティンング成形し、これを積層するこ
とにより製造することができる。また、白色又は黄色基
材層と光散乱層と蓄光層とを多層押出金型より一体的に
シート状に押出成形することにより得ることもできる。The luminous road marking material of the present invention is manufactured by extruding or casting a white or yellow base material layer, a light scattering layer and a luminous layer separately into a sheet and laminating them. be able to. Further, it can also be obtained by extruding a white or yellow base material layer, a light scattering layer and a luminous layer integrally from a multilayer extrusion mold into a sheet.
【００２６】また、本発明の蓄光性道路標示材は、白色
又は黄色基材層の上に光散乱層のペイントを塗工して光
散乱層を形成し、その上に蓄光層のペイントを塗工して
蓄光層を形成することにより得ることができる。また、
路面に白色又は黄色基材層のペイントを塗工して白色又
は基材層を形成し、その上に光散乱層のペイントを塗工
して光散乱層を形成し、さらにその上に蓄光層のペイン
トを塗工して蓄光層を形成することにより得ることがで
きる。Further, the luminous road marking material of the present invention forms a light-scattering layer by applying a light-scattering layer paint on a white or yellow base material layer, and then paints the luminous layer paint thereon. It can be obtained by forming a luminous layer. Also,
A white or yellow base material layer paint is applied to the road surface to form a white or base material layer, and a light scattering layer paint is applied thereon to form a light scattering layer, and further a luminous layer thereon. To form a luminous layer by applying the above paint.
【００２７】なお、白色又は黄色基材層、光散乱層及び
蓄光層には、必要に応じて、充填剤として、炭酸カルシ
ウム、滑石粉、珪石粉、ガラス繊維粉、マイカ、タル
ク、アルミフレーク、ニッケル粉、金粉、銀粉等の不透
明な無機微粉末を配合することができる。また、耐汚染
性を向上させるために、パラフィンワックス、マイクロ
クリスタリンワックス、ポリエチレンワックス等の滑剤
を配合することができる。その他、老化防止剤、紫外線
吸収剤、硬化剤を配合することができる。The white or yellow base material layer, the light scattering layer and the luminous layer may contain, if necessary, fillers such as calcium carbonate, talc powder, silica stone powder, glass fiber powder, mica, talc, aluminum flake, Opaque inorganic fine powder such as nickel powder, gold powder and silver powder can be blended. Further, in order to improve the stain resistance, a lubricant such as paraffin wax, microcrystalline wax and polyethylene wax can be blended. In addition, an antioxidant, an ultraviolet absorber, and a curing agent can be blended.
【００２８】これ等の各種配合剤を用いる場合は、白色
又は黄色基材層の白色又は黄色の色合いを損なわない範
囲の量を配合する。また、光散乱層及び蓄光層の透明乃
至半透明性が損なわれない範囲の量を配合する。When using these various compounding agents, the compounding agent is added in such an amount that the white or yellow color of the white or yellow base material layer is not impaired. Further, the amount of the light scattering layer and the light storage layer is blended in such a range that the transparency or translucency is not impaired.
【００２９】さらに、蓄光層の表面には、蓄光性顔料の
離脱を防止したり、蓄光性顔料を保護するために、透明
乃至半透明のゴム又は樹脂で被覆してもよい。また、白
色又は黄色基材層の裏面には、路面への接着性や施工性
を改善するために、ＥＶＡ（エチレン−酢酸ビニル共重
合体）系、ＳＩＳ（スチレン−イソプレンブロック−ス
チレンブロック共重合体）系、アクリル系などのホット
メルト接着剤、アクリル系粘着剤、熱又は紫外線硬化性
のアクリル接着剤などの接着剤層を設けてもよい。Further, the surface of the luminous layer may be coated with a transparent or translucent rubber or resin to prevent the luminous pigment from separating or to protect the luminous pigment. Further, on the back surface of the white or yellow base material layer, EVA (ethylene-vinyl acetate copolymer), SIS (styrene-isoprene block-styrene block copolymer) are used to improve the adhesion to the road surface and the workability. An adhesive layer such as a hot-melt adhesive such as a (coalescing) -based or acrylic-based adhesive, an acrylic-based adhesive, or a heat- or ultraviolet-curable acrylic adhesive may be provided.
【００３０】こうして得られる本発明の蓄光性道路標示
材によれば、高い発光輝度が得られる。その理由は次の
ように推察される。According to the luminous road marking material of the present invention thus obtained, high luminous brightness can be obtained. The reason is presumed as follows.
【００３１】すなわち、蓄光性道路標示材に光が当たる
と、蓄光層は透明乃至半透明であるので、厚み方向への
光の到達深度が蓄光性顔料により制限されることなく深
い場所に位置する蓄光性顔料へも到達し、多くの蓄光性
顔料が発光に寄与すると考えられる。That is, when light shines on the luminous road marking material, the luminous layer is transparent or translucent, so that the depth of light reaching in the thickness direction is not limited by the luminous pigment and is located at a deep place. It also reaches the luminous pigment, and it is considered that many luminous pigments contribute to light emission.
【００３２】そして、光散乱層も透明乃至半透明であ
り、しかも全光線透過率が２５％以上の粉末又は粒子が
含有されているので、この光散乱層へも光が良好に到達
し、上記粉末又は粒子によって光が乱反射或いは再帰反
射され、これ等の反射光や屈折光により蓄光層の多くの
蓄光性顔料に光線が当たり、多くの蓄光性顔料が発光に
寄与すると考えられる。The light scattering layer is also transparent or translucent and contains powder or particles having a total light transmittance of 25% or more. It is considered that light is diffusely or retroreflected by the powder or the particles, and the reflected light or refracted light impinges on many luminous pigments in the luminous layer, and many luminous pigments contribute to light emission.
【００３３】なお、白色又は黄色基材層は、道路標示材
としての白色又は黄色の表示を行うものであるが、特に
白色基材層の場合は、光散乱層に含有されている反射性
粉末又は粒子の光散乱性（乱反射或いは再帰反射）を助
けるはたらきがある。The white or yellow base material layer is used for displaying white or yellow as a road marking material. In particular, in the case of a white base material layer, the reflective powder contained in the light scattering layer is used. Alternatively, there is a function to help the light scattering property (diffuse reflection or retroreflection) of the particles.
【００３４】[0034]
【発明の実施の形態】以下、この発明の実施例及び比較
例を示して、この発明の利点を説明する。 （実施例１） 蓄光層の原料 ：メチルメタクリレート−ブチルメタ
クリレート共重合体からなる透明メタクリル樹脂Ａ（屈
折率ｎd 20＝１．４４８）８５重量％と、粒径１００メ
ッシュのアルミナを主成分とする蓄光性顔料（アルナと
酸化酸ストロンチウムと少量のＥｕ及びＤｙとを焼成し
て得られたもの）（日本ケミックス社製のケミカラーＮ
Ｌ）１５重量％との混合物。 光散乱層の原料 ：メチルメタクリレート−ブチルメタ
クリレート共重合体からなる透明メタクリル樹脂Ｂ（屈
折率ｎd 20＝１．５１０）６０重量％と、ガラスビーズ
（全光線透過率８０％、粒径５３〜６３μm 、比重約
２．２、球状）４０重量部との混合物。 白色基材層の原料：メチルメタクリレート−ブチルメタ
クリレート共重合体からなる透明メタクリル樹脂Ｃ（屈
折率ｎd 20＝１．４９９）６０重量％と、炭酸カルシウ
ム３５重量％と、酸化チタン重量５％との混合物。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, advantages of the present invention will be described with reference to examples and comparative examples of the present invention. (Example 1) of the phosphorescent layer material: methyl methacrylate - butyl methacrylate copolymer and 85 wt% transparent methacrylic resin A (refractive index n d 20 = 1.448) consisting of body, and composed mainly of grain size 100 mesh alumina Phosphorescent pigment (obtained by calcining aluna, strontium oxide, and a small amount of Eu and Dy) (Nippon Chemics Co., Ltd. Chemicolor N)
L) Mixture with 15% by weight. Material of the light scattering layer: Methyl methacrylate - butyl methacrylate copolymer transparent methacrylic resin B comprising (refractive index n d 20 = 1.510) 60% by weight, 80% glass beads (total light transmittance, particle size 53 to 63 μm, specific gravity about 2.2, spherical) 40 parts by weight. Raw materials for white substrate layer: Methyl methacrylate - butyl methacrylate copolymer transparent methacrylic resin C made of a material (refractive index n d 20 = 1.499) and 60 wt%, and 35 wt% calcium carbonate, titanium oxide by weight 5% Mixture.
【００３５】上記蓄光層、光散乱層及び白色基材層の原
料を、三層押出金型より１８０℃で一体的にシート状に
溶融押出成形し、幅１５ｃｍ×長さ３００ｃｍ×厚さ２
ｍｍ（蓄光層０．５ｍｍ、光散乱層０．５ｍｍ、白色基
材層１ｍｍ）の三層構造の蓄光性道路標示材（評価用試
料）を得た。The raw materials for the light-storing layer, light-scattering layer and white base layer were integrally melt-extruded into a sheet at 180 ° C. from a three-layer extrusion die, and were 15 cm wide × 300 cm long × 2 thickness thick.
mm (light-storing layer 0.5 mm, light-scattering layer 0.5 mm, white base material layer 1 mm), a three-layered luminous road marking material (sample for evaluation) was obtained.
【００３６】この蓄光性道路標示材（評価用試料）を、
路面を想定したアスファルト板に接着し、２本の蛍光灯
（４０Ｗ×２本）を用い、垂直上方の１．５ｍの距離か
ら光を４０分間照射し、照射直後に評価用試料を暗闇
（街光などの外部光の影響を受けない場所）に置き、評
価用試料の長さ３００ｃｍの延長線上の、３０ｍ遠方の
地点で、高さ１．５ｍの位置から目視による視認性（輝
度）を評価した。The luminous road marking material (sample for evaluation) was
Adhered to an asphalt board assuming a road surface, using two fluorescent lamps (40 W x 2), irradiating light for 40 minutes from a distance of 1.5 m vertically above, and immediately after irradiation, the evaluation sample was placed in darkness (town (A place not affected by external light such as light), and evaluate the visibility (brightness) by visual observation from a position at a height of 1.5 m at a distance of 30 m on an extension of a 300 cm length of the evaluation sample. did.
【００３７】また、照射後に評価用試料を暗闇に３０分
間放置したもの及び６時間放置したものについて、同様
にして３０ｍ遠方の地点から目視による視認性（輝度）
を評価した。その結果を表１に示す。In the same manner, for the sample left for 30 minutes in the dark after irradiation and the sample left for 6 hours after irradiation, the visual visibility (luminance) was similarly observed from a point 30 m away.
Was evaluated. Table 1 shows the results.
【００３８】（実施例２）光散乱層のガラスビーズ量を
２０重量％に変更し、蓄光性道路標示材の厚さを１．８
ｍｍ（蓄光層０．５ｍｍ、光散乱層０．５ｍｍ、白色基
材層０．８ｍｍ）としたこと以外は、実施例１と同様に
行って蓄光性道路標示材を作製し、視認性（輝度）を評
価した。その結果を表１に示す。Example 2 The amount of glass beads in the light-scattering layer was changed to 20% by weight, and the thickness of the luminous road marking material was 1.8.
mm (light-storing layer 0.5 mm, light-scattering layer 0.5 mm, white base material layer 0.8 mm) in the same manner as in Example 1 to produce a light-storing road marking material, and visibility (luminance ) Was evaluated. Table 1 shows the results.
【００３９】（実施例３）白色基材層に含有される酸化
チタン５重量％に換えて、クロムイエロー５重量％を含
有させた黄色基材を用い、それ以外は実施例１と同様に
行って蓄光性道路標示材を作製し、視認性（輝度）を評
価した。その結果を表１に示す。(Example 3) A yellow base material containing 5% by weight of chrome yellow was used instead of 5% by weight of titanium oxide contained in the white base material layer, and the other steps were the same as in Example 1. Thus, a luminous road marking material was prepared, and visibility (luminance) was evaluated. Table 1 shows the results.
【００４０】（比較例１）光散乱層のガラスビーズ４０
重量％に替えて、アルミフーレーク（全光線透過率０
％、平均粒径７０μm ）４０重量％を用いたこと以外
は、実施例１と同様に行って蓄光性道路標示材を作製
し、視認性（輝度）を評価した。その結果を表１に示
す。(Comparative Example 1) Glass beads 40 of light scattering layer
Weight percent, replaced by Aluminum Four Lake (total light transmittance 0
%, Average particle size 70 μm) A phosphorescent road marking material was prepared in the same manner as in Example 1 except that 40% by weight was used, and the visibility (luminance) was evaluated. Table 1 shows the results.
【００４１】（比較例２）光散乱層のガラスビーズを全
く含有させず、それ以外は実施例１と同様に行って蓄光
性道路標示材を作製し、視認性（輝度）を評価した。そ
の結果を表１に示す。Comparative Example 2 A luminous road marking material was prepared in the same manner as in Example 1 except that no glass beads of the light scattering layer were contained, and the visibility (luminance) was evaluated. Table 1 shows the results.
【００４２】（比較例３）実施例１で用いたメチルメタ
クリレート−ブチルメタクリレート共重合体からなる透
明メタクリル樹脂Ａ（屈折率ｎd 20＝１．４４８）６０
重量％と、実施例１で用いたアルミナを主成分とする蓄
光性顔料１５重量％と、実施例１で用いたガラスビーズ
２０重量％と、実施例１で用いた酸化チタン５重量％と
の混合物を、単層押出金型より１８０℃でシート状に溶
融押出成形し、幅１５ｃｍ×長さ３００ｃｍ×厚さ１．
８ｍｍの単層構造の蓄光性道路標示材（評価用試料）を
得た。Comparative Example 3 Transparent methacrylic resin A comprising the methyl methacrylate-butyl methacrylate copolymer used in Example 1 (refractive index n d 20 = 1.448) 60
% Of the phosphorescent pigment containing alumina as a main component used in Example 1, 15% by weight of glass beads used in Example 1, and 5% by weight of titanium oxide used in Example 1. The mixture was melt-extruded into a sheet at 180 ° C. from a single-layer extrusion mold, and was 15 cm wide × 300 cm long × thickness 1.
An 8 mm single-layered luminous road marking material (sample for evaluation) was obtained.
【００４３】この蓄光性道路標示材を用い、実施例１と
同様に行って蓄光性道路標示材を作製し、視認性（輝
度）を評価した。その結果を表１に示す。Using this luminous road marking material, a luminous road marking material was prepared in the same manner as in Example 1, and the visibility (luminance) was evaluated. Table 1 shows the results.
【００４４】[0044]
【表１】 [Table 1]
【００４５】[0045]
【発明の効果】本発明の蓄光性道路標示材は、白色又は
黄色基材層の上に、全光線透過率が２５％以上の粉末又
は粒子を含有する透明乃至半透明の光散乱層が設けら
れ、その上に蓄光性顔料を含有する透明乃至半透明の蓄
光層が設けられていることを特徴とし、それにより従来
の蓄光性道路標示材に比べ、発光輝度が高く、暗所での
視認性に優れ、実用上、十分に満足できる蓄光性道路標
示材が得られる。According to the luminous road marking material of the present invention, a transparent or translucent light scattering layer containing powder or particles having a total light transmittance of 25% or more is provided on a white or yellow base material layer. And a transparent or translucent luminous layer containing a luminous pigment is provided thereon, whereby the luminous luminance is higher than that of a conventional luminous road marking material, and the luminous luminance is higher in a dark place. Thus, a luminous road marking material which is excellent in practicality and sufficiently satisfactory in practical use can be obtained.
【００４６】したがって、本発明の蓄光性道路標示材
は、特に夜間や暗闇における道路の区画線や停止線、横
断歩道や危険箇所の標示線などの帯線、記号、文字の標
示に優れた効果を奏する。Therefore, the luminous road marking material of the present invention is excellent in the marking of band lines, symbols, and characters such as marking lines and stop lines of roads at night and in the dark, pedestrian crossings and danger points. To play.
Claims (1)
率が２５％以上の粉末又は粒子を含有する透明乃至半透
明の光散乱層が設けられ、その上に蓄光性顔料を含有す
る透明乃至半透明の蓄光層が設けられていることを特徴
とする蓄光性道路標示材。1. A transparent or translucent light-scattering layer containing powder or particles having a total light transmittance of 25% or more is provided on a white or yellow base material layer, and a luminous pigment is contained thereon. A light-storing road marking material, comprising a transparent or translucent light-storing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8239184A JPH1082023A (en) | 1996-09-10 | 1996-09-10 | Light-accumulating road marking material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8239184A JPH1082023A (en) | 1996-09-10 | 1996-09-10 | Light-accumulating road marking material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1082023A true JPH1082023A (en) | 1998-03-31 |
Family
ID=17040975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8239184A Pending JPH1082023A (en) | 1996-09-10 | 1996-09-10 | Light-accumulating road marking material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1082023A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000109710A (en) * | 1998-10-06 | 2000-04-18 | Ruminooba Seiko:Kk | Translucent luminous resin and its molded product |
| JP2002011835A (en) * | 2000-06-27 | 2002-01-15 | Nitto Denko Corp | Luminous base material and luminous sticky tape |
| WO2003057994A1 (en) * | 2001-12-28 | 2003-07-17 | Availvs Corporation | Light-accumulating luminous road marking material and road structure |
| US6976803B2 (en) | 2003-03-28 | 2005-12-20 | Kyowa Electric And Chemical Co., Ltd. | Stationary board for blocking lights of oncoming vehicles in medial strip and facilitating nighttime identification of medial strip |
| JP2010137470A (en) * | 2008-12-12 | 2010-06-24 | Three M Innovative Properties Co | Luminous laminate |
| JP2011021190A (en) * | 2010-08-16 | 2011-02-03 | Nok Corp | Luminescent product, and method of manufacturing the same |
| CN105400338A (en) * | 2015-12-30 | 2016-03-16 | 量子光电科技（天津）有限公司 | Waterproof energy-storing noctilucent coating for traffic sign and application thereof |
| JP2016153200A (en) * | 2015-02-20 | 2016-08-25 | タキロン株式会社 | Luminous bilayer resin member |
| CN115449280A (en) * | 2022-10-19 | 2022-12-09 | 广东电网有限责任公司 | Energy storage type luminescent powder coating and preparation method thereof |
-
1996
- 1996-09-10 JP JP8239184A patent/JPH1082023A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000109710A (en) * | 1998-10-06 | 2000-04-18 | Ruminooba Seiko:Kk | Translucent luminous resin and its molded product |
| JP2002011835A (en) * | 2000-06-27 | 2002-01-15 | Nitto Denko Corp | Luminous base material and luminous sticky tape |
| CN100458017C (en) * | 2001-12-28 | 2009-02-04 | 亚米良寿公司 | Light-accumulating luminous road marking material and road structure |
| WO2003057994A1 (en) * | 2001-12-28 | 2003-07-17 | Availvs Corporation | Light-accumulating luminous road marking material and road structure |
| US7204658B2 (en) | 2001-12-28 | 2007-04-17 | Availvs Corporation | Light-accumulating luminous road marking material and road structure |
| AU2002359940B2 (en) * | 2001-12-28 | 2008-06-19 | Availvs Corporation | Light-accumulating luminous road marking material and road structure |
| US6976803B2 (en) | 2003-03-28 | 2005-12-20 | Kyowa Electric And Chemical Co., Ltd. | Stationary board for blocking lights of oncoming vehicles in medial strip and facilitating nighttime identification of medial strip |
| JP2010137470A (en) * | 2008-12-12 | 2010-06-24 | Three M Innovative Properties Co | Luminous laminate |
| WO2010068665A3 (en) * | 2008-12-12 | 2010-08-26 | 3M Innovative Properties Company | Light accumulating laminated body |
| CN102271912A (en) * | 2008-12-12 | 2011-12-07 | 3M创新有限公司 | Light accumulating laminated body |
| JP2011021190A (en) * | 2010-08-16 | 2011-02-03 | Nok Corp | Luminescent product, and method of manufacturing the same |
| JP2016153200A (en) * | 2015-02-20 | 2016-08-25 | タキロン株式会社 | Luminous bilayer resin member |
| CN105400338A (en) * | 2015-12-30 | 2016-03-16 | 量子光电科技（天津）有限公司 | Waterproof energy-storing noctilucent coating for traffic sign and application thereof |
| CN115449280A (en) * | 2022-10-19 | 2022-12-09 | 广东电网有限责任公司 | Energy storage type luminescent powder coating and preparation method thereof |
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