JPH0823739B2 - High brightness all weather type road marking sheet material - Google Patents
High brightness all weather type road marking sheet materialInfo
- Publication number
- JPH0823739B2 JPH0823739B2 JP1049363A JP4936389A JPH0823739B2 JP H0823739 B2 JPH0823739 B2 JP H0823739B2 JP 1049363 A JP1049363 A JP 1049363A JP 4936389 A JP4936389 A JP 4936389A JP H0823739 B2 JPH0823739 B2 JP H0823739B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- glass beads
- sheet
- large diameter
- resin
- 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.)
- Expired - Lifetime
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
- E01F9/512—Preformed road surface markings, e.g. of sheet material; Methods of applying preformed markings
Landscapes
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Road Signs Or Road Markings (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Dental Preparations (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Glass Compositions (AREA)
- Golf Clubs (AREA)
- Toys (AREA)
- Helmets And Other Head Coverings (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は路面標示用シート材に関し、特に大きな角度
で入射する光線に対して高い再帰反射輝度を有し、かつ
雨天時夜間にも高い再帰反射輝度を有する全天候型路面
標示用シート材に関する。Description: TECHNICAL FIELD The present invention relates to a road marking sheet material, which has a high retroreflective brightness particularly for a light ray incident at a large angle and has a high retroreflectance even in the rainy night. The present invention relates to an all-weather pavement marking sheet material having reflective brightness.
道路の区画線、道路標識等の路面標識として、再帰反
射性を有する路面標示用シート材が使用されている。現
在使用されている各種の路面標示用シート材は、いずれ
も再帰反射要素としてガラスビーズを樹脂層に散布また
は混入することにより、夜間でも視認することができる
ようになっている。これらの路面標示用シート材は、雨
天時に標示表面が水膜で覆われると、シート材表面から
大気中に露出して反射機能をうけもっているガラスビー
ズの上半球部分がほとんど水膜中に埋没するため、その
反射機能が損われ、雨天時夜間には視認性が極めて悪く
なるという共通の欠点がある。BACKGROUND ART A road marking sheet material having retroreflectivity is used as a road marking such as a road marking line or a road marking. All of the various road marking sheet materials currently in use can be visually recognized even at night by scattering or mixing glass beads as a retroreflective element in a resin layer. When the marking surface of these road marking sheet materials is covered with a water film in rainy weather, the upper hemisphere part of the glass beads that is exposed to the atmosphere from the surface of the sheet material and receives the reflection function is almost buried in the water film. Therefore, there is a common drawback that its reflection function is impaired, and visibility becomes extremely poor at night in rainy weather.
そこで、従来このような路面標示用シート材の雨天時
夜間における視認性を改善するため、いくつかの提案が
なされている。たとえば、米国特許第4,388,359号等に
おいては、ガラスビーズを埋設したシート材の表面に多
数の凹凸を設けることにより雨天時夜間における視認性
の向上を図っている。また特開昭62−211403号公報に
は、雨天時夜間においても再帰反射性を比較的に失わな
い屈折率2.0〜2.4のガラスビーズがベースシートに埋設
されている区域をベースシートの長手方向に間隔をおい
て多数または部分連続的に形成することにより、雨天時
夜間における視認性の改良を図っている。Therefore, in order to improve the visibility of such a road marking sheet material at night in rainy weather, some proposals have been made. For example, in U.S. Pat. No. 4,388,359 or the like, a sheet material having glass beads embedded therein is provided with a large number of irregularities on the surface thereof to improve the visibility in the rain and night. Further, in Japanese Patent Laid-Open No. 62-211403, an area in which glass beads having a refractive index of 2.0 to 2.4, which does not lose its retroreflectivity relatively even at night in rainy weather, is embedded in the base sheet, is formed in the longitudinal direction of the base sheet. By forming a large number or a part of them continuously at intervals, the visibility in rainy night is improved.
これら従来の全天候型路面標示用シート材は、夜間走
行する車輌のヘッドライトからの光が路面標示用シート
材に対し比較的に小さい入射角で照射される時は期待さ
れた視認性を発揮することができるが、車輌のヘッドラ
イトからの光は路面標示用シートに対して通常60°〜80
°と非常に大きな入射角で照射されるため、このように
大きな入射角においては、再帰反射輝度が低下し、その
上雨天時には水膜に影響されて再帰反射輝度が一層低下
することを免れない。雨天夜間時における路面標示用シ
ート材の反射輝度の低下は非常に危険であるので、この
ように大きな入射角で入射される光線に対する路面標示
用シート材の再帰反射輝度の改善が望まれていた。These conventional all-weather pavement marking sheet materials exhibit the expected visibility when the light from the headlights of a vehicle traveling at night is applied to the pavement marking sheet material at a relatively small incident angle. However, the light from the vehicle headlights is usually 60 ° to 80 ° to the road marking sheet.
Since the irradiation is performed at a very large incident angle of 0 °, the retroreflective brightness is lowered at such a large incident angle, and in addition, it is inevitable that the retroreflective brightness is further deteriorated by the water film in rainy weather. . Since it is very dangerous to reduce the reflection brightness of the road marking sheet material at night in rainy weather, it has been desired to improve the retroreflective brightness of the road marking sheet material with respect to a light ray incident at such a large incident angle. .
本発明は、上記従来の路面標示用シート材の問題点を
解決するためになされたものであって、路面標示用シー
ト材が通常の使用時に必要とされる60°以上の大きな角
度で入射する光線に対しても十分な反射輝度を有し、か
つ雨天時夜間にも高い反射輝度を有する全天候型路面標
示用シート材を提供するものである。The present invention has been made to solve the problems of the conventional road marking sheet material, in which the road marking sheet material is incident at a large angle of 60 ° or more, which is required during normal use. It is intended to provide an all-weather pavement marking sheet material having a sufficient reflection brightness for light rays and a high reflection brightness even in the rainy night.
上記目的を達成するため、本発明にかかる高輝度全天
候型路面標示用シート材は、少なくとも一部空気中に露
出して透明な樹脂で結合された比較的大径のガラスビー
ズ層と該比較的大径のガラスビーズの背後の透明な樹脂
層中に該比較的大径のガラスビーズから間隔をおいて埋
入固定された比較的小径のガラスビーズ層と該樹脂層の
背面に設けられた金属蒸着膜等からなる反射層とを有す
る再帰反射シートと、該再帰反射シートの背後に結合さ
れたゴム・合成樹脂等の材料からなるベースシートとを
備えることを特徴とする。In order to achieve the above object, a high-brightness all-weather pavement marking sheet material according to the present invention comprises a relatively large-diameter glass bead layer which is exposed to the air and is bonded with a transparent resin. A relatively small diameter glass bead layer embedded and fixed in the transparent resin layer behind the large diameter glass bead at a distance from the relatively large diameter glass bead and a metal provided on the back surface of the resin layer It is characterized in that it is provided with a retroreflective sheet having a reflective layer made of a vapor deposition film or the like, and a base sheet made of a material such as rubber or synthetic resin bonded to the back of the retroreflective sheet.
上記構成により、本発明によれば、60°以上の大きな
入射角で入射された光線は、比較的大径のガラスビーズ
から透明な樹脂を介して再帰反射シート中の比較的小径
のガラスビーズに入射され反射層において反射された後
比較的小径のガラスビーズ、透明な樹脂および比較的大
径のガラスビーズを通過して再帰反射される。したがっ
て比較的大径のガラスビーズ、比較的小径のガラスビー
ズおよび樹脂の各屈折率および比較的大径のガラスビー
ズおよび比較的小径のガラスビーズの粒径および比較的
大径のガラスビーズと比較的小径のガラズビーズとの間
の樹脂の間隔等を適宜選択し組合せることにより60°以
上の大きな入射角において高い再帰反射効率を得ること
ができる。With the above structure, according to the present invention, a light beam incident at a large incident angle of 60 ° or more is transmitted from a relatively large diameter glass bead to a relatively small diameter glass bead in a retroreflective sheet through a transparent resin. After being incident and reflected in the reflection layer, it is retroreflected through the glass beads having a relatively small diameter, the transparent resin and the glass beads having a relatively large diameter. Therefore, the refractive index of the relatively large diameter glass beads, the relatively small diameter glass beads and the resin and the particle size of the relatively large diameter glass beads and the relatively small diameter glass beads and the relatively large diameter glass beads A high retroreflection efficiency can be obtained at a large incident angle of 60 ° or more by appropriately selecting and combining the interval between the resin and the small-sized glass beads.
また光学上詳細な機構は不明であるが、上記本発明の
構成を採ることにより、比較的大径のガラスビーズの露
出部分が水膜に覆われた場合でも、再帰反射輝度は乾燥
状態（晴天時夜間に相当する）と比べて実質的に低下す
ることがなく、むしろ乾燥状態に比べて再帰反射輝度が
向上する場合もあることが判った。Further, although the detailed mechanism in terms of optics is unknown, by adopting the configuration of the present invention, the retroreflective brightness is in a dry state (clear weather) even when the exposed portion of the glass beads having a relatively large diameter is covered with a water film. It has been found that there is a case where the retroreflective brightness is improved rather than a dry state in some cases.
次に本発明にかかる高輝度全天候型路面標示用シート
材の構成について図面を参照して説明する。Next, the structure of the high-intensity all-weather type road marking sheet material according to the present invention will be described with reference to the drawings.
第１図において、本発明の路面標示用シート材Ａは再
帰反射シート１およびベースシート２からなるものであ
る。In FIG. 1, a road marking sheet material A of the present invention comprises a retroreflective sheet 1 and a base sheet 2.
再帰反射シート１の樹脂３は透明性を有し、比較的大
径のガラスビーズ４に対する保持力が良いことが必要で
あり、さらに屋外使用のため、耐摩耗性、耐汚染性、耐
変色性等を考慮して選定する必要がある。これらの条件
を満たす樹脂としてはアクリル系重合体、脂肪族ウレタ
ンおよびポリエステルを架橋したものが好適であり、そ
の他ビニル重合体、酢酸セルロースブチレート等の熱可
塑性物質も使用可能である。The resin 3 of the retroreflective sheet 1 needs to be transparent and have good holding power for the glass beads 4 having a relatively large diameter. Further, since it is used outdoors, it has abrasion resistance, stain resistance, and discoloration resistance. It is necessary to select in consideration of the above. As a resin satisfying these conditions, a resin obtained by crosslinking an acrylic polymer, an aliphatic urethane and a polyester is suitable, and a thermoplastic material such as a vinyl polymer or cellulose acetate butyrate can also be used.
本発明においては、比較的大径のガラスビーズ４を少
なくとも一部空気中に露出して設けることにより、照射
される光線が広角度であっても受光量が多く、下層の反
射層まで大きな光量を取り入れるように構成したので、
広角の光を反射するためにはガラスビーズ４の粒径は大
きい程その効果は大きいが、路面での用途を考慮すると
2mmを超えるビーズは脱落し易くその使用には問題があ
る。また0.25mm未満では輝度が低下し、本発明の目的を
充分に達成し得ない。したがって大径のガラスビーズ４
の粒径は、0.25〜2mmの範囲内のものを選ぶ必要があ
り、特に0.25〜0.5mmのものが好ましい。In the present invention, since the glass beads 4 having a relatively large diameter are provided so as to be exposed at least partially in the air, a large amount of light is received even when the irradiated light beam has a wide angle, and a large amount of light is transmitted to the lower reflective layer. Since it was configured to incorporate
In order to reflect wide-angle light, the larger the particle size of the glass beads 4, the greater the effect, but considering the application on the road surface.
Beads larger than 2 mm tend to fall off, and there is a problem in their use. If it is less than 0.25 mm, the brightness is lowered and the object of the present invention cannot be sufficiently achieved. Therefore, large diameter glass beads 4
It is necessary to select a particle size of 0.25 to 2 mm, and a particle size of 0.25 to 0.5 mm is particularly preferable.
大径のガラスビーズ４は屈折率1.75〜2.2の範囲のも
のが好ましい。屈折率が1.75未満では輝度が低下する一
方2.2を超える屈折率のガラスビーズは製造が難しく高
価となる。The large diameter glass beads 4 preferably have a refractive index in the range of 1.75 to 2.2. When the refractive index is less than 1.75, the brightness decreases, while glass beads having a refractive index exceeding 2.2 are difficult to manufacture and expensive.
大径のガラスビーズ４は全表面積の30〜60％となるよ
うに均一に散布され層となっている。The large-diameter glass beads 4 are evenly distributed in a layer so as to be 30 to 60% of the total surface area.
再帰反射シート１には比較的大径のガラスビーズ４の
背後の透明な樹脂層中にガラスビーズ４から間隔をおい
て比較的小径のガラスビーズ５が埋入固定され層を形成
している。小径のガラスビーズ５の背後の透明な樹脂層
の背面には金属蒸着膜等からなる反射層８が設けてあ
る。小径のガラスビーズ５としては粒径53〜63μｍ、屈
折率2.0〜2.2程度のものを使用することが好ましい。反
射層８はガラスビーズ５の背後に位置し、ガラスビーズ
５の焦点に好ましくは合致するよう調節する焦点調節樹
脂層７の背面に真空蒸着法等公知の方法によりアルミニ
ウム膜等の金属膜を形成することにより得られる。再帰
反射シートについて第２図に拡大断面図で示した下層部
ａを先に製造し、該下層部ａ上に上層部ｂを設けた例に
基づいて更に説明を行なう。下層部ａはガラスビーズ５
を保持するガラスビーズ保持樹脂層６とガラスビーズ５
の焦点に合わせて樹脂の膜厚を調節するための焦点調節
樹脂層７と、この焦点調節樹脂層７の背面にガラスビー
ズ５と同心の曲面に形成された金属蒸着膜等からなる反
射層８を備え、さらに必要に応じ、ガラスビーズ保持樹
脂層６を補強するため表面層９を設ける。なお、10はア
クリル系樹脂等からなる粘着剤層である。ガラスビーズ
５はガラスビーズ保持樹脂層６中に粒径の20〜30％を埋
入固定されている。表面樹脂層９を設ける場合その膜厚
は10〜30μｍ程度で充分である。次に上層部ｂは下層部
ａの上にコーティング等により透明な樹脂層３を設け、
この透明な樹脂層３で大径のガラスビーズ４を保持する
構造となっており、ここにおける透明な樹脂層３の膜厚
は、ガラスビーズ４を固定するための最低膜厚としては
20μｍ以上であれば良いが、実際の路面でのガラスビー
ズ保持力を考えると少なくとも70μｍ以上必要である。
膜厚はガラスビーズ４の粒径と相関性があり、粒径の半
分以下が好ましい。したがって20〜100μｍが可能で、
好ましい膜厚としては70〜100μｍである。膜厚20μｍ
未満ではガラスビーズ４の保持力が低下し、100μｍを
超えると輝度が低下するためともに好ましくない。In the retroreflective sheet 1, glass beads 5 having a relatively small diameter are embedded and fixed in a transparent resin layer behind the glass beads 4 having a relatively large diameter at a distance from the glass beads 4 to form a layer. On the back surface of the transparent resin layer behind the small-diameter glass beads 5, a reflective layer 8 made of a metal vapor deposition film or the like is provided. As the small-diameter glass beads 5, those having a particle diameter of 53 to 63 μm and a refractive index of about 2.0 to 2.2 are preferably used. The reflection layer 8 is located behind the glass beads 5, and a metal film such as an aluminum film is formed on the back surface of the focus adjusting resin layer 7 for adjusting the focus of the glass beads 5 preferably by a known method such as vacuum deposition. It is obtained by doing. The retroreflective sheet will be further described based on an example in which the lower layer portion a shown in the enlarged sectional view of FIG. 2 is manufactured first and the upper layer portion b is provided on the lower layer portion a. Lower layer a is glass beads 5
Glass bead holding resin layer 6 and glass beads 5 for holding
A focus adjusting resin layer 7 for adjusting the film thickness of the resin in accordance with the focus of the glass, and a reflective layer 8 made of a metal vapor deposition film or the like formed on the curved surface concentric with the glass beads 5 on the back surface of the focus adjusting resin layer 7. And a surface layer 9 for reinforcing the glass bead holding resin layer 6 as required. Incidentally, 10 is a pressure-sensitive adhesive layer made of acrylic resin or the like. The glass beads 5 are fixed by embedding 20 to 30% of the particle diameter in the glass bead holding resin layer 6. When the surface resin layer 9 is provided, it is sufficient that the film thickness is about 10 to 30 μm. Next, the upper layer b is provided with the transparent resin layer 3 on the lower layer a by coating or the like,
The transparent resin layer 3 holds the large-diameter glass beads 4, and the film thickness of the transparent resin layer 3 is the minimum film thickness for fixing the glass beads 4.
It may be 20 μm or more, but at least 70 μm or more is necessary considering the holding power of the glass beads on the actual road surface.
The film thickness has a correlation with the particle size of the glass beads 4, and is preferably half the particle size or less. Therefore, 20 ~ 100μm is possible,
The preferable film thickness is 70 to 100 μm. Film thickness 20μm
If it is less than 100 μm, the holding power of the glass beads 4 decreases, and if it exceeds 100 μm, the brightness decreases, which is not preferable.
なお、再帰反射シート１は上記の製造法に限られるも
のではなく、大径のガラスビーズ４側から順次製造する
等、他の方法で製造してもよいことは勿論である。The retroreflective sheet 1 is not limited to the above manufacturing method, and it goes without saying that it may be manufactured by another method such as sequentially manufacturing from the large-diameter glass beads 4 side.
再帰反射シート１の背後に結合されるベースシート２
は、変形する路面への順応性と機械的耐久性にすぐれた
材料からなることを要し、主材としてたとえばアクリロ
ニトリルブタジエンゴム（NBR），イソブチレンイソプ
レンゴム（IIR），クロロプレンゴム（CR），クロロス
ルホン化ポリエチレン，ウレタンゴム等の未加硫合成ゴ
ムや塩化ビニール等の合成樹脂を使用し、これに応じて
炭酸カルシウム粉末等の適当な充填剤，着色用の顔料等
を添加し、ロール圧延加工等により厚さ5mm以下のシー
ト状に形成する。Base sheet 2 bonded to the back of retroreflective sheet 1
Is required to be made of a material that has excellent adaptability to deforming road surfaces and mechanical durability. Unvulcanized synthetic rubber such as sulfonated polyethylene and urethane rubber, and synthetic resin such as vinyl chloride are used, and appropriate fillers such as calcium carbonate powder and coloring pigments are added accordingly, and roll rolling is performed. It is formed into a sheet with a thickness of 5 mm or less.
ベースシート２の下面には膜厚50μｍ以上、好ましく
は100〜200μｍ程度の適当な厚さに接着剤層11を設け
る。また通常はこの接着剤層11の下面に剥離紙12を貼付
するが、使用する接着剤の種類によっては剥離紙12を使
用しないこともある。An adhesive layer 11 is provided on the lower surface of the base sheet 2 to have an appropriate thickness of 50 μm or more, preferably about 100 to 200 μm. Although the release paper 12 is usually attached to the lower surface of the adhesive layer 11, the release paper 12 may not be used depending on the type of adhesive used.
ベースシート２を製造するには、前述したベースシー
トの構成材料である未加硫合成ゴムや合成樹脂に充填
剤，顔料等の所望量を添加し、混練して加熱圧延加工に
より圧延し、厚さ5mm以下の適当な厚さのシート状に成
形し巻取り、場合によりさらに巻戻しつつ剥離紙に50μ
ｍ以上の適当な厚さに塗布した接着剤をシート下表面に
さらに重ね合わせて巻取る。In order to manufacture the base sheet 2, a desired amount of a filler, a pigment or the like is added to the unvulcanized synthetic rubber or synthetic resin, which is a constituent material of the base sheet, kneaded and rolled by heat rolling to obtain a thickness. It is formed into a sheet with an appropriate thickness of 5 mm or less and rolled up.
An adhesive applied in an appropriate thickness of m or more is further superposed on the lower surface of the sheet and wound.
またベースシート２は上記組成のベース層とベース層
上に設けられた薄膜の着色層の２層からなる構成として
もよい。この場合ベース層の厚さは1.〜1.6mmとし、ベ
ース層上の着色層の厚みは20〜25μｍ程度とすることが
好ましい。ベース層上の薄膜の着色層は、ベース層の上
述したと同様の特徴を存し、かつ、ベース層に緊密一体
に接着することも要するとともに路面標示用として所望
の色に着色されていることを要するので、上述したベー
ス層に用いる未加硫合成ゴムと同種または同性質をもつ
異種のものに適宜の着色剤を添加したものが好ましい。The base sheet 2 may be composed of two layers, a base layer having the above composition and a thin colored layer provided on the base layer. In this case, the thickness of the base layer is preferably 1. to 1.6 mm, and the thickness of the colored layer on the base layer is preferably about 20 to 25 .mu.m. The colored layer of the thin film on the base layer has the same characteristics as described above of the base layer, and it is necessary to adhere to the base layer closely and integrally and is colored in a desired color for road marking. Therefore, it is preferable that an appropriate colorant is added to the same kind or different kind of unvulcanized synthetic rubber used for the base layer described above.
ベース層上に着色層を形成する場合は、いったん巻取
られたベース層を巻き戻しつつ、その上表面側に、未加
硫合成ゴム材料を溶剤に溶かして所望の色相を与える着
色剤を添加し調製した流動物を乾燥後の塗膜に所望の厚
さを与える量塗布することにより着色層を形成する。When forming a colored layer on the base layer, while unwinding the once wound base layer, a colorant which dissolves the unvulcanized synthetic rubber material in a solvent to give a desired hue is added to the upper surface side thereof. The colored layer is formed by applying the prepared fluid to the coating film after drying in an amount that gives a desired thickness.
またベースシート２を機械的耐久性に優れた比較的に
硬い上層と路面に対する変形順応性に優れた比較的に柔
い下層の２層からなる構造とすることもできる。この場
合下層をJISK6301による硬度が30°〜75°でかつ復元力
が50％以下の材料で形成すると、路面に対する変形順応
性が極めて優れ、路面に貼着後剥離することが少い。Alternatively, the base sheet 2 may have a structure including two layers, a relatively hard upper layer having excellent mechanical durability and a relatively soft lower layer having excellent deformation adaptability to a road surface. In this case, when the lower layer is made of a material having a hardness of 30 ° to 75 ° according to JIS K6301 and a restoring force of 50% or less, the conformability to deformation on the road surface is extremely excellent, and it is less likely to peel off after sticking to the road surface.
ベースシート２をこのような２層構造にする場合、上
記の硬度と復元率は、一方法として、下層の配合中に比
較的に多量の可塑性物質を添加することによって得るこ
とができる。可塑性物質の配合全体の中での添加量は２
倍以上が必要である。可塑性物質としては、エラストマ
ー、可塑剤（D.O.P,塩素化パラフィン、エポキシその
他）、液状ゴム等が好適である。上層および下層の主剤
としてはともにアクリロニトリルブタジエンゴム（NB
R），イソブチレンイソプレンゴム（IIR），クロロプレ
ンゴム（CR），等の未加硫合成ゴムやクロロスルホン化
ポリエチレン，塩素化ポリエチレン、塩化ビニール等の
合成樹脂その他路面標示用シート材において公知の材料
を使用することができ、必要に応じて炭酸カルシウム粉
末等の適当な充填剤、着色用の顔料等を添加し、厚さ2m
m以下のシート状にロール圧延加工等により形成する。
下層の下面には膜厚50μｍ以上、好ましくは100〜200μ
ｍ程度の適当な厚さに接着剤層を設ける。接着剤層は離
型紙に所望の厚さの接着剤を塗布し、下層の下表面に重
ね合わせることにより形成することができる。When the base sheet 2 has such a two-layer structure, the hardness and the recovery rate described above can be obtained by adding a relatively large amount of a plastic substance during the formulation of the lower layer, as one method. The total amount of plastics added is 2
Need more than double. As the plastic substance, an elastomer, a plasticizer (DOP, chlorinated paraffin, epoxy or the like), a liquid rubber or the like is suitable. Acrylonitrile butadiene rubber (NB
R), isobutylene isoprene rubber (IIR), chloroprene rubber (CR), etc., unvulcanized synthetic rubber, chlorosulfonated polyethylene, chlorinated polyethylene, synthetic resins such as vinyl chloride, and other known materials for road marking sheet materials. It can be used, if necessary, add suitable filler such as calcium carbonate powder, pigment for coloring, etc.
It is formed into a sheet of m or less by roll rolling or the like.
The lower surface of the lower layer has a film thickness of 50 μm or more, preferably 100 to 200 μm.
An adhesive layer is provided with an appropriate thickness of about m. The adhesive layer can be formed by coating a release paper with an adhesive having a desired thickness and superposing it on the lower surface of the lower layer.
この２層構造のベースシートを製造するには、上層お
よび下層の構成材料である未加硫合成ゴムや合成樹脂に
充填剤、顔料、等の所望量を添加し、下層にはさらに可
塑性物質の所望量を添加して混練し、次いで加熱圧延加
工により圧延し、それぞれ厚さ2mm以下の適当な厚さの
シート状の上層および下層に成形し、離型紙に50μｍ以
上の適当な厚さに塗布した接着剤を下層の下表面に重ね
合わせる。To produce this two-layer base sheet, desired amounts of fillers, pigments, etc. are added to the unvulcanized synthetic rubber and synthetic resin, which are the constituent materials of the upper and lower layers, and the lower layer further comprises a plastic material. Add the desired amount and knead, then roll by heat rolling, form into sheet-like upper and lower layers with an appropriate thickness of 2 mm or less, and apply to release paper with an appropriate thickness of 50 μm or more The adhesive is applied to the lower surface of the lower layer.
こうして上層および下層を用意した後、下層の上表面
に接着剤を塗布するか、または下層の上表面付近を加熱
により軟化せしめて上層を重ね合わせ、両者を接着す
る。または既成の上層を押出し成形工程で押出された下
層上に重ね合せ、加圧ロールで圧着させ一体化させる。After preparing the upper layer and the lower layer in this way, an adhesive is applied to the upper surface of the lower layer, or the vicinity of the upper surface of the lower layer is softened by heating and the upper layers are superposed and bonded to each other. Alternatively, the existing upper layer is superposed on the lower layer extruded in the extrusion molding step, and pressure-bonded with a pressure roll to integrate them.
また、このように上層と下層を別々のシートとして製
造しこれら２枚のシートを重ね合わせ接合するかわりに
下層の配合により１枚のベースシートを形成し、その上
半部を電子線照射により硬化させて上層となし、電子線
照射を行わない下半部を下層とする等の方法により、上
層と下層を最初から一体のベースシートとして形成する
ようにしてもよい。In addition, instead of manufacturing the upper layer and the lower layer as separate sheets in this way, instead of superposing and joining these two sheets, one base sheet is formed by blending the lower layer, and the upper half part thereof is cured by electron beam irradiation. Alternatively, the upper layer and the lower layer may be formed as an integral base sheet from the beginning by a method such as forming the upper layer and forming the lower half portion not subjected to electron beam irradiation as the lower layer.
本発明の路面標示用シート材は、たとえば上記のよう
に形成された再帰反射シート１と、上記方法により別途
に成形したベースシート２とを熱圧着によりラミネート
することにより得ることができる。The road marking sheet material of the present invention can be obtained, for example, by laminating the retroreflective sheet 1 formed as described above and the base sheet 2 separately molded by the above method by thermocompression bonding.
次に、本発明の一実施例につき説明する。 Next, an embodiment of the present invention will be described.
（１）再帰反射シート１の下層部ａの形成 キャリーフイルム（ポリエステルフイルム）に表面樹
脂層９を形成する樹脂として変性アクリル樹脂100部と
架橋剤としてメラミン樹脂またはイソシアネート10部を
混合してなる樹脂を膜厚10〜30μｍになるように塗布
し、乾燥硬化させて表面樹脂層９を形成した。(1) Formation of the lower layer a of the retroreflective sheet 1 A resin obtained by mixing 100 parts of a modified acrylic resin as a resin for forming the surface resin layer 9 on a carry film (polyester film) and 10 parts of a melamine resin or an isocyanate as a crosslinking agent. Was applied to a film thickness of 10 to 30 μm, and dried and cured to form a surface resin layer 9.
次に表面樹脂層９上にガラスビーズ保持樹脂層６を形
成する樹脂として変性アクリル樹脂100部と架橋剤15部
を混合してなる樹脂を膜厚10〜40μｍとなるように塗布
し、半乾燥状態で粒径53〜63μｍ、屈折率2.2のガラス
ビーズ５を均一に散布し、樹脂を乾燥硬化させてガラス
ビーズ５を固定し、ガラスビーズ保持樹脂層６を形成し
た。Next, a resin formed by mixing 100 parts of a modified acrylic resin and 15 parts of a crosslinking agent as a resin for forming the glass bead holding resin layer 6 on the surface resin layer 9 is applied so as to have a film thickness of 10 to 40 μm, and semi-dried. In this state, the glass beads 5 having a particle diameter of 53 to 63 μm and a refractive index of 2.2 were evenly dispersed, and the resin was dried and cured to fix the glass beads 5 to form the glass bead holding resin layer 6.
次に、ガラスビーズ保持樹脂層６のガラスビーズ５側
に、焦点樹脂調節層７を形成する樹脂として変性アクリ
ル樹脂100部、架橋剤５〜10部を混合してなる樹脂をMIB
Kとトルエンの混合溶液にとかした樹脂を溶剤を揮発し
た後の状態で約30g/m2になるように塗布し、乾燥硬化さ
せて焦点調節樹脂層７を形成した。Next, on the glass bead 5 side of the glass bead holding resin layer 6, 100 parts of a modified acrylic resin as a resin for forming the focus resin adjusting layer 7 and a resin obtained by mixing 5 to 10 parts of a crosslinking agent are mixed with MIB.
A resin dissolved in a mixed solution of K and toluene was applied at a rate of about 30 g / m 2 after the solvent was volatilized, and dried and cured to form a focus adjustment resin layer 7.
こうして形成した焦点調節樹脂層７の露出面に真空蒸
着方法によりアルミニウム反射膜を蒸着させることによ
り反射層８を形成した。次にアクリル系粘着剤を剥離紙
に塗布し、アルミニウム蒸着面にラミネートした後トッ
プ層９のキャリアフイルムを除き再帰反射シート１の下
層部ａを完成した。この再帰反射シート１の下層部ａの
樹脂の屈折率は1.52であった。The reflective layer 8 was formed by depositing an aluminum reflective film on the exposed surface of the focus adjustment resin layer 7 thus formed by a vacuum deposition method. Next, an acrylic pressure-sensitive adhesive was applied to a release paper, laminated on the aluminum vapor deposition surface, and then the carrier film of the top layer 9 was removed to complete the lower layer portion a of the retroreflective sheet 1. The resin of the lower layer a of the retroreflective sheet 1 had a refractive index of 1.52.
（２）再帰反射シート１の上層部ｂの形成 再帰反射シート１の下層部ａの表面に上層部ｂを形成
する樹脂として変性アクリル樹脂100部、架橋剤15部を
混合してなる樹脂を膜厚約75μｍとなるように塗布し、
半乾燥状態で粒径350〜500μｍ、屈折率1.90〜1.92のガ
ラスビーズ４を全表面の32％となるように均一に散布し
樹脂を乾燥硬化させることにより上層部ｂを形成した。
上層部ｂの樹脂の屈折率は1.52であった。(2) Formation of the upper layer b of the retroreflective sheet 1 As a resin for forming the upper layer b on the surface of the lower layer a of the retroreflective sheet 1, 100 parts of a modified acrylic resin and 15 parts of a crosslinking agent are mixed to form a film. Apply to a thickness of about 75 μm,
In the semi-dried state, glass beads 4 having a particle diameter of 350 to 500 μm and a refractive index of 1.90 to 1.92 were uniformly dispersed so as to be 32% of the entire surface, and the resin was dried and cured to form the upper layer portion b.
The refractive index of the resin of the upper layer portion b was 1.52.
（３）ベースシート２の形成 ベースシート２として、機械的耐久性に優れた比較的
に硬い上層と路面に対する変形順応性に優れた比較的に
柔い下層の２層からなるものを形成した。(3) Formation of Base Sheet 2 As the base sheet 2, a base sheet having a relatively hard upper layer having excellent mechanical durability and a relatively soft lower layer having excellent conformability to deformation on the road surface was formed.
上層を形成するためNBR30部、BR5部、石油樹脂15部、
TiO230部、CaCO3140部を混練し、加工温度90℃で押出圧
延により厚さ0.7mm、幅1,000mmのシート状に成形した。
また下層を形成するため、NBR30部、BR5部、石油樹脂15
部、TiO230部、CaCO3140部、液状ゴム５部、塩素化ポリ
エチレン７部、D.O.P5部を上層と同様の方法により混練
し押出圧延により厚さ0.7mm、幅1,000mmのシート状に成
形した。NBR30 parts, BR5 parts, petroleum resin 15 parts to form the upper layer,
30 parts of TiO 2 and 140 parts of CaCO 3 were kneaded and extruded at a processing temperature of 90 ° C. to form a sheet having a thickness of 0.7 mm and a width of 1,000 mm.
Also, to form the lower layer, NBR30 parts, BR5 parts, petroleum resin 15
Part, TiO 2 30 parts, CaCO 3 140 parts, liquid rubber 5 parts, chlorinated polyethylene 7 parts, and DOP 5 parts are kneaded in the same manner as the upper layer and extruded and rolled to form a sheet having a thickness of 0.7 mm and a width of 1,000 mm. did.
下層の下面には100μｍに感圧接着剤を塗布し剥離紙1
2を重ね合わせ接着剤層11を形成した。次に下層の上表
面に感圧接着剤を塗布した後上層を重ね合わせ両者を接
着し、上層の上面にも感圧接着剤を塗布した剥離紙を重
ね合わせベースシート２を完成した。A pressure-sensitive adhesive is applied to the lower surface of the lower layer to a thickness of 100 μm and release paper 1
The two were overlaid to form an adhesive layer 11. Next, a pressure-sensitive adhesive was applied to the upper surface of the lower layer, and then the upper layers were superposed and bonded to each other, and release paper coated with the pressure-sensitive adhesive was also superposed on the upper surface of the upper layer to complete the base sheet 2.
（４）路面標示用シート材の完成 再帰反射シート１の裏面にラミネートされた剥離紙と
ベースシート２の上層の上面にラミネートされた剥離紙
を取除き、再帰反射シート１とベースシート２を相互に
接着剤側で熱圧着してラミネートし本発明の高輝度全天
候型路面標示用シート材を完成した。(4) Completion of the road marking sheet material The release paper laminated on the back surface of the retroreflective sheet 1 and the release paper laminated on the upper surface of the base sheet 2 are removed, and the retroreflective sheet 1 and the base sheet 2 are mutually attached. Then, the adhesive side was thermocompression-bonded and laminated to complete the high-intensity all-weather road marking sheet material of the present invention.
（５）再帰反射輝度の測定 上記実施例の路面標示用シート材の再帰反射輝度を光
線の入射角度を60°と80°の間で種々変えてガラスビー
ズの乾燥状態と水に濡れた状態のそれぞれについて測定
した。比較のため、従来品として前記米国特許第4,388,
359号記載のタイプの路面標示用シート材（以下「従来
品Ａ」という）および前記特開昭62−211403号公報記載
のタイプの路面標示用シート材（以下「従来品Ｂ」とい
う）について、上記実施例と同一条件の下に再帰反射輝
度をそれぞれ測定した。輝度の測定はJISZ9117による輝
度測定方法により行い、ガラスビーズが水に濡れた状態
における輝度については、アクリル板内に水を入れて製
品を完全に濡らした状態で測定後、アクリル板による輝
度の減少を調整した。これら各路面標示用シート材の再
帰反射輝度の測定結果を下表１および第３図に示す。(5) Measurement of retroreflective brightness The retroreflective brightness of the pavement marking sheet materials of the above-described examples was changed between the dry state of glass beads and the wet state of water by varying the incident angle of light rays between 60 ° and 80 °. It measured about each. For comparison, the conventional U.S. Pat.No. 4,388,
Regarding the road marking sheet material of the type described in No. 359 (hereinafter referred to as "conventional product A") and the road marking sheet material of the type described in JP-A-62-212403 (hereinafter referred to as "conventional product B"), The retroreflective brightness was measured under the same conditions as in the above example. The brightness is measured by the brightness measurement method according to JIS Z9117.For the brightness when the glass beads are wet with water, the brightness is reduced by the acrylic plate after the product is completely wet by putting water in the acrylic plate. Was adjusted. The measurement results of the retroreflective brightness of each of these road marking sheet materials are shown in Table 1 and FIG. 3 below.
以上の測定結果から、本発明の路面標示用シート材は
60°〜80°の大きな入射角において従来品に比較して高
い再帰反射輝度を有していることが判る。また従来品
は、いずれもガラスビーズが水に濡れた状態においては
乾燥状態よりも輝度が落ちるのに対し、本発明の路面標
示用シート材の場合は、ガラスビーズが水に濡れた状態
の方がむしろ輝度が高いという結果が得られた。 From the above measurement results, the road marking sheet material of the present invention
It can be seen that at a large incident angle of 60 ° to 80 °, it has higher retroreflective brightness than the conventional product. Further, in the conventional products, when the glass beads are wet with water, the brightness is lower than that in the dry state, whereas in the case of the road marking sheet material of the present invention, the glass beads are wet with water. However, the result was that the brightness was rather high.
また上記本発明の実施例について、再帰反射シート１
中の焦点調節樹脂層７の膜厚が再帰反射輝度に及ぼす影
響を調べるため、焦点調節樹脂層７の樹脂の塗布量を種
々変えた時の再帰反射輝度を上記と同じ測定方法により
測定した。塗布量を23.49g/m2のものをサンプルＡ、29.
77g/m2のものをサンプルＢ、35.38g/m2のものをサンプ
ルＣ、として測定を行った結果を下表２および第４図に
示す。In addition, regarding the above-described embodiment of the present invention, the retroreflective sheet 1
In order to investigate the influence of the film thickness of the focus adjustment resin layer 7 on the retroreflective brightness, the retroreflective brightness when the resin coating amount of the focus adjusting resin layer 7 was variously changed was measured by the same measuring method as described above. Sample A, 29. with coating amount of 23.49 g / m 2 .
The results obtained by measuring 77 g / m 2 as sample B and 35.38 g / m 2 as sample C are shown in Table 2 and FIG. 4 below.
以上の測定結果から、本発明の路面標示用シート材に
おいては、再帰反射シート１中の焦点樹脂調節層７の膜
厚は、サンプルＢの場合に最高の再帰反射輝度が得られ
ることが判る。またサンプルＡ、Ｂ、Ｃのいずれの場合
も、ガラスビーズが乾燥状態の時よりもガラスビーズが
水に濡れた状態の時の方が再帰反射輝度が高いという結
果が得られた。 From the above measurement results, in the road marking sheet material of the present invention, it is understood that the film thickness of the focus resin adjusting layer 7 in the retroreflective sheet 1 provides the highest retroreflective brightness in the case of the sample B. Further, in each of Samples A, B, and C, the result was obtained that the retroreflective brightness was higher when the glass beads were wet with water than when they were dry.
以上述べたように、本発明によれば60°以上の大きな
入射角で入射された光線は、再帰反射シートの大径のビ
ーズから透明な樹脂を介して小径のビーズに入射され反
射層において反射された後小径のビーズ、透明な樹脂お
よび大径のビーズを通過して再帰反射される。したがっ
て大径のビーズ、小径のビーズおよび樹脂の各屈折率お
よび大径のビーズおよび小径のビーズの粒径および大径
のビーズと小径のビーズとの間の樹脂の間隔等を適宜選
択し組合わせることにより60°以上の大きな入射角にお
いて従来のものに比べより高い再帰反射効率を得ること
ができる。As described above, according to the present invention, a light ray incident at a large incident angle of 60 ° or more is incident on a small-diameter bead from a large-diameter bead of a retroreflective sheet through a transparent resin and is reflected on a reflective layer. After passing through the small diameter beads, the transparent resin and the large diameter beads, they are retroreflected. Therefore, the refractive indexes of the large-diameter beads, the small-diameter beads, and the resin, the particle diameters of the large-diameter beads and the small-diameter beads, and the resin intervals between the large-diameter beads and the small-diameter beads are appropriately selected and combined. As a result, at a large incident angle of 60 ° or more, higher retroreflection efficiency can be obtained as compared with the conventional one.
また、上記本発明構成を採ることにより、大径のビー
ズの露出部分が水膜に覆われた場合でも再帰反射輝度は
乾燥状態と比べて実質的に低下することがなく、実施例
においてはむしろ乾燥状態に比べて再帰反射輝度が向上
するので、各ガラスビーズの粒径、各ガラスビーズ間の
間隔等を適宜選択し組合せることにより雨天時の再帰反
射輝度を高めることができる。Further, by adopting the configuration of the present invention, even if the exposed portion of the large-sized beads are covered with a water film, the retroreflective brightness does not substantially lower as compared with the dry state, and rather in the examples. Since the retroreflective brightness is improved as compared with the dry state, the retroreflective brightness in rainy weather can be enhanced by appropriately selecting and combining the particle size of each glass bead, the interval between each glass bead and the like.
また大径のガラスビーズが空気中に露出して設けてあ
るので照射される光線が広角度であっても受光量が多
く、下層の反射層まで多くの光量を取り入れることがで
きる。Further, since the large-diameter glass beads are exposed in the air, a large amount of light is received even when the light beam emitted is at a wide angle, and a large amount of light can be taken up to the lower reflective layer.
また、再帰反射シート層の背部に未加硫ゴム等を主体
とするベースシートが設けられているため車輌の通過時
に表面ガラスビーズは車輌による衝撃をベースシートで
緩和され脱落する恐れが少ない。Further, since the base sheet mainly composed of unvulcanized rubber or the like is provided on the back portion of the retroreflective sheet layer, the surface glass beads are less likely to fall off when the vehicle passes by the impact of the vehicle being alleviated by the base sheet.
また、再帰反射シートの上層部の樹脂の膜厚を20〜10
0μｍの範囲とすることにより、20μｍ未満ではガラス
ビーズが脱落し易く、100μｍを超えると反射輝度が低
下するという不利益を除くことができる。Also, the film thickness of the resin on the upper layer of the retroreflective sheet should be 20 to 10
By setting the thickness in the range of 0 μm, it is possible to eliminate the disadvantage that the glass beads are likely to fall off when the thickness is less than 20 μm, and the reflection brightness decreases when the thickness exceeds 100 μm.
また、再帰反射シートの上層部の大径のガラスビーズ
の粒径を0.25〜2mmの範囲とすることにより、0.25mm未
満では輝度が低く、2mmを超えると脱落し易いという欠
点を除くことができる。Further, by setting the particle diameter of the large-diameter glass beads in the upper layer portion of the retroreflective sheet to be in the range of 0.25 to 2 mm, it is possible to eliminate the disadvantage that the brightness is low when it is less than 0.25 mm and the glass beads easily fall off when it exceeds 2 mm. .
さらに、比較的大径のガラスビーズの屈折率を1.75〜
2.2とすることにより、1.75未満の輝度の低下と2.2を超
えた場合の価格上昇を除くことができる。Furthermore, the refractive index of relatively large glass beads is 1.75 ~
By setting it to 2.2, it is possible to exclude the decrease in brightness below 1.75 and the increase in price above 2.2.
添付図面において、第１図は本発明の高輝度全天候型路
面標示用シート材の断面図、第２図は再帰反射シートの
下層部の拡大断面図、第３図は本発明の一実施例の再帰
反射輝度を従来品と比較して示すグラフ、第４図は本発
明の実施例における焦点樹脂調節層の膜厚と再帰反射輝
度の関係を示すグラフである。 １……再帰反射シート、２……ベースシート、３……樹
脂、４……大径のガラスビーズ、５……小径のガラスビ
ーズ。In the attached drawings, FIG. 1 is a sectional view of a sheet material for high-intensity all-weather pavement marking of the present invention, FIG. 2 is an enlarged sectional view of a lower layer portion of a retroreflective sheet, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a graph showing the retroreflective brightness in comparison with the conventional product, and FIG. 4 is a graph showing the relationship between the film thickness of the focus resin control layer and the retroreflective brightness in the example of the present invention. 1 ... Retroreflective sheet, 2 ... Base sheet, 3 ... Resin, 4 ... Large diameter glass beads, 5 ... Small diameter glass beads.
Claims (3)
脂で結合された比較的大径のガラスビーズ層と該比較的
大径のガラスビーズの背後の透明な樹脂層中に該比較的
大径のガラスビーズから間隔をおいて埋入固定された比
較的小径のガラスビーズ層と該樹脂層の背面に設けられ
た金属蒸着膜等からなる反射層とを有する再帰反射シー
トと、該再帰反射シートの背後に結合されたゴム・合成
樹脂等の材料からなるベースシートとを備え、入射光線
は該比較的大径のガラスビーズから該透明な樹脂層およ
び該比較的小径のガラスビーズを屈折しつつ通過して該
反射層によって反射された後該比較的小径のガラスビー
ズ、該透明な樹脂層および該比較的大径のガラスビーズ
を屈折しつつ通過して再帰反射されることを特徴とする
高輝度全天候型路面標示用シート材。1. A relatively large diameter glass bead layer which is exposed to the air and is bonded with a transparent resin at least in part, and a relatively large diameter glass bead behind the relatively large diameter glass bead. A retroreflective sheet having a relatively small-diameter glass bead layer embedded and fixed at a distance from a large-diameter glass bead, and a reflective layer formed of a metal vapor deposition film or the like provided on the back surface of the resin layer, and the retroreflective sheet A base sheet made of a material such as rubber or synthetic resin bonded to the back of the reflection sheet, and an incident light beam refracts the transparent resin layer and the relatively small diameter glass beads from the relatively large diameter glass beads. While passing through while being reflected by the reflective layer, the glass beads having a relatively small diameter, the transparent resin layer and the glass beads having a relatively large diameter are also refracted and retroreflected. High brightness all-weather road Marking sheet material.
〜2mmである請求項１記載の高輝度全天候型路面標示用
シート材。2. The particle diameter of the glass beads having a relatively large diameter is 0.25.
The high-brightness all-weather pavement marking sheet material according to claim 1, having a thickness of 2 mm.
75〜2.2である請求項１記載の高輝度全天候型路面標示
用シート材。3. The glass beads having a relatively large diameter have a refractive index of 1.
The high-intensity all-weather pavement marking sheet material according to claim 1, which is 75 to 2.2.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1049363A JPH0823739B2 (en) | 1989-03-01 | 1989-03-01 | High brightness all weather type road marking sheet material |
| CA002011055A CA2011055C (en) | 1989-03-01 | 1990-02-27 | High-brightness all-weather type pavement marking sheet material |
| NO90900938A NO900938L (en) | 1989-03-01 | 1990-02-28 | VEIMERKINGSMATERIALE. |
| EP90302123A EP0385746B1 (en) | 1989-03-01 | 1990-02-28 | High-brightness all-weather type pavement marking sheet material |
| DK052690A DK52690A (en) | 1989-03-01 | 1990-02-28 | Traffic line MATERIAL |
| PT93295A PT93295A (en) | 1989-03-01 | 1990-02-28 | MATERIAL IN LEAVES TO MARK PAVEMENTS RESISTANT TO ALL TYPES OF CLIMATAL CONDITIONS AND WITH HIGH BRIGHTNESS |
| FI901022A FI901022A0 (en) | 1989-03-01 | 1990-02-28 | REFLEKTERANDE ARKMATERIAL FOER MAERKNING AV VAEGBELAEGGNING VID ALLA VAEDER. |
| AT90302123T ATE82785T1 (en) | 1989-03-01 | 1990-02-28 | HIGH VISIBILITY ALL-WEATHER ROAD MARKING MATERIAL. |
| DE9090302123T DE69000488T2 (en) | 1989-03-01 | 1990-02-28 | ALL-WEATHER-APPROVED ROAD MARKING MATERIAL RAIL WITH HIGH VISIBILITY. |
| SG33393A SG33393G (en) | 1989-03-01 | 1993-03-24 | High-brightness all-weather type pavement marking sheet material |
| HK707/93A HK70793A (en) | 1989-03-01 | 1993-07-22 | High-brightness all-weather type pavement marking sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1049363A JPH0823739B2 (en) | 1989-03-01 | 1989-03-01 | High brightness all weather type road marking sheet material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02228692A JPH02228692A (en) | 1990-09-11 |
| JPH0823739B2 true JPH0823739B2 (en) | 1996-03-06 |
Family
ID=12828935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1049363A Expired - Lifetime JPH0823739B2 (en) | 1989-03-01 | 1989-03-01 | High brightness all weather type road marking sheet material |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0385746B1 (en) |
| JP (1) | JPH0823739B2 (en) |
| AT (1) | ATE82785T1 (en) |
| CA (1) | CA2011055C (en) |
| DE (1) | DE69000488T2 (en) |
| DK (1) | DK52690A (en) |
| FI (1) | FI901022A0 (en) |
| HK (1) | HK70793A (en) |
| NO (1) | NO900938L (en) |
| PT (1) | PT93295A (en) |
| SG (1) | SG33393G (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210134522A (en) * | 2021-10-18 | 2021-11-10 | 주) 길빛 | Painting method of traffic lane for assurance view |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9106946D0 (en) * | 1991-04-03 | 1991-05-22 | R S Clare & Company Limited | Road marking compositions |
| ES2096520B1 (en) * | 1994-05-24 | 1997-08-16 | Pinturas Jaque S L | HORIZONTAL SOUND SIGNAL. |
| JP3670343B2 (en) * | 1995-06-16 | 2005-07-13 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | Retroreflective structure and manufacturing method thereof |
| WO1997001677A1 (en) * | 1995-06-29 | 1997-01-16 | Minnesota Mining And Manufacturing Company | Wet retroreflective marking material |
| US6703108B1 (en) | 1995-06-29 | 2004-03-09 | 3M Innovative Properties Company | Wet retroreflective marking material |
| TW297865B (en) * | 1995-06-29 | 1997-02-11 | Minnesota Mining & Mfg | |
| US6451408B1 (en) * | 1995-06-29 | 2002-09-17 | 3M Innovative Properties Company | Retroreflective article |
| ZA965383B (en) * | 1995-06-29 | 1997-12-25 | Minnesota Mining & Mfg | High entrance angle retroreflective article and method of making. |
| US6303058B1 (en) | 1996-06-27 | 2001-10-16 | 3M Innovative Properties Company | Method of making profiled retroreflective marking material |
| US5777791A (en) * | 1996-11-26 | 1998-07-07 | Minnesota Mining And Manufacturing Company | Wet retroreflective pavement marking articles |
| ATE215643T1 (en) | 1997-05-20 | 2002-04-15 | Akzo Nobel Nv | REFLECTIVE ROAD MARKING SYSTEM |
| US6000804A (en) * | 1997-09-30 | 1999-12-14 | Shiseido Co., Ltd. | Colored light retroreflective material and retroreflective hologram reconstructor using the same |
| US6247818B1 (en) | 1998-10-20 | 2001-06-19 | 3M Innovative Properties Company | Method for making retroreflective elements having enhanced retroreflectivity under dry and/or wet conditions |
| US6365262B1 (en) * | 1998-10-20 | 2002-04-02 | 3M Innovative Properties Company | Pavement marking articles having enhanced retroreflectivity under dry or wet conditions and method for making same |
| ITBS20010056A1 (en) | 2001-07-06 | 2003-01-06 | Graziano Fabiani | SIGN TAPE IN PARTICULAR FOR ROAD SIGNALS AND PROCEDURE FOR THE REALIZATION OF THE SAME |
| JP4852251B2 (en) * | 2005-02-14 | 2012-01-11 | アイカ工業株式会社 | Paint composition |
| RU2447227C1 (en) * | 2010-09-21 | 2012-04-10 | Сергей Владимирович Карпеев | Horizontal road marking |
| CN108138499A (en) * | 2015-10-06 | 2018-06-08 | 3M创新有限公司 | Anti-skidding illuminates front lit product certainly |
| ES2624536B1 (en) * | 2016-01-13 | 2018-04-24 | Industrias Samar't, S.A. | RETRO-REFLECTING SHEET AND PROCEDURE FOR OBTAINING THE SAME |
| WO2019155359A2 (en) * | 2018-02-06 | 2019-08-15 | 3M Innovative Properties Company | Decorative sheet for road surface, precursor for graphic construct, method of producing graphic construct sheet, and method of installing decorative sheet for road surface |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1049818A (en) * | 1952-01-24 | 1954-01-04 | A process for the production of large reflective coatings on surfaces or bodies, particularly signs and traffic signals | |
| US4248932A (en) * | 1979-06-14 | 1981-02-03 | Minnesota Mining And Manufacturing Company | Extended-life pavement-marking sheet material |
| JPS561086A (en) * | 1979-06-16 | 1981-01-08 | Process Bunkadou Kk | Producing reflective object containing fine transparent balls |
| JPS57133004U (en) * | 1981-02-16 | 1982-08-19 | ||
| JPS60147332A (en) * | 1984-01-13 | 1985-08-03 | 西武ポリマ化成株式會社 | Sheet material for indicating durability road surface |
| CH665665A5 (en) * | 1984-10-08 | 1988-05-31 | Moses Bollag | Horizontal road surface marking - incorporates glass beads protruding from marking material |
| JPH0745723B2 (en) * | 1984-10-22 | 1995-05-17 | アトム化学塗料株式会社 | High-brightness road marking sheet material |
| JPS62211403A (en) * | 1986-03-11 | 1987-09-17 | アトム化学塗料株式会社 | All-weather type sheet material for marking road surface |
| JPS63291086A (en) * | 1987-05-25 | 1988-11-28 | 三共理化学株式会社 | Recurrent reflector and manufacture thereof |
| IT1205186B (en) * | 1987-06-25 | 1989-03-15 | Snoline Spa | PREFABRICATED SIGNAL STRIP FOR TEMPORARY USE |
| JPS6421106A (en) * | 1987-07-17 | 1989-01-24 | Seibulite Int Inc | Sheet material for displaying two layer structure road surface |
-
1989
- 1989-03-01 JP JP1049363A patent/JPH0823739B2/en not_active Expired - Lifetime
-
1990
- 1990-02-27 CA CA002011055A patent/CA2011055C/en not_active Expired - Fee Related
- 1990-02-28 DK DK052690A patent/DK52690A/en not_active Application Discontinuation
- 1990-02-28 NO NO90900938A patent/NO900938L/en unknown
- 1990-02-28 DE DE9090302123T patent/DE69000488T2/en not_active Expired - Fee Related
- 1990-02-28 FI FI901022A patent/FI901022A0/en not_active IP Right Cessation
- 1990-02-28 AT AT90302123T patent/ATE82785T1/en not_active IP Right Cessation
- 1990-02-28 PT PT93295A patent/PT93295A/en not_active Application Discontinuation
- 1990-02-28 EP EP90302123A patent/EP0385746B1/en not_active Expired - Lifetime
-
1993
- 1993-03-24 SG SG33393A patent/SG33393G/en unknown
- 1993-07-22 HK HK707/93A patent/HK70793A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210134522A (en) * | 2021-10-18 | 2021-11-10 | 주) 길빛 | Painting method of traffic lane for assurance view |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2011055C (en) | 1995-04-25 |
| NO900938D0 (en) | 1990-02-28 |
| NO900938L (en) | 1990-09-03 |
| DE69000488D1 (en) | 1993-01-07 |
| EP0385746B1 (en) | 1992-11-25 |
| DK52690A (en) | 1990-09-02 |
| HK70793A (en) | 1993-07-30 |
| ATE82785T1 (en) | 1992-12-15 |
| DE69000488T2 (en) | 1993-06-09 |
| SG33393G (en) | 1993-05-21 |
| EP0385746A1 (en) | 1990-09-05 |
| CA2011055A1 (en) | 1990-09-01 |
| FI901022A0 (en) | 1990-02-28 |
| DK52690D0 (en) | 1990-02-28 |
| PT93295A (en) | 1991-10-15 |
| JPH02228692A (en) | 1990-09-11 |
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