Multifunctional extruded heat mounting tape for road marking

Abstract

The present invention relates to a multifunctional protruding heat-adhesive tape for road marking. Specifically, the invention relates to a heat-bonded tape configured to be installed by heat pressing on-site when performing road marking according to a predetermined pattern and shape on a road surface. By configuring the protrusions formed on the heat-bonded tape to enhance retroreflection and improve visibility, and also to reduce the wear rate, The present invention relates to a multi-functional protruding heat-bonded tape for road marking that reduces the breakage rate of the tape during the manufacturing process and reduces the wear rate even after installation on the road surface.

Description

Technology Field

[0001] The present invention relates to a multifunctional protruding heat-adhesive tape for road marking.

[0002] Specifically, the invention relates to a heat-bonded tape configured to be installed by heat pressing on-site when performing road marking according to a predetermined pattern and shape on a road surface.

[0003] By configuring the protrusions formed on the heat-bonded tape to enhance retroreflection and improve visibility, and also to reduce the wear rate,

[0004] The present invention relates to a multi-functional protruding heat-bonded tape for road marking that reduces the breakage rate of the tape during the manufacturing process and reduces the wear rate even after installation on the road surface. Background Technology

[0006] Generally, road surfaces provide markings indicating road conditions, such as speed limits, bus lanes, and other road information necessary for driving, as well as crosswalks, child protection zones, and no-parking signs. Additionally, markings such as dedicated bicycle lanes are displayed on the interior surfaces of sports and play facilities, pedestrian walkways, and buildings to provide information.

[0007] These road markings, such as symbols, letters, and numbers, serve the function of providing information to vehicles, bicycles, and pedestrians using the road to ensure safe driving or walking, and maintaining traffic order.

[0008] In particular, these road markings must be marked on the road surface so that drivers can easily identify the lanes of the paved road through the reflection of light from vehicle headlights when driving at night on wet roads due to snow or rain, as well as to minimize the risk of traffic accidents and disruption of traffic flow. In addition, road markings installed on school routes, etc., are required to have an anti-slip effect to prevent accidents caused by vehicles skidding during rainy weather.

[0009] Conventional methods for marking such road surfaces involved using air-drying type traffic paints, hot-spray type traffic paints, and hot-melt type traffic paints with general paint, and operating a construction machine on-site to mark the surface.

[0011] However, among the conventional methods mentioned above, the room-temperature paint had the following defects: the film thickness was thin, resulting in poor durability; a drying time of typically 30 to 50 minutes was required, which disrupted traffic flow; and work could not be performed at temperatures below 5°C, making winter construction difficult.

[0012] In addition, heat-type paints are paints that become liquid when heated to a temperature of 60°C or higher and harden at room temperature. Although the drying time (3 to 15 minutes) is average, they have the disadvantage of causing environmental pollution due to high contamination levels.

[0013] In addition, fusion paint is applied by feeding powdered materials into a melting machine, boiling them at a high steam pressure of 200°C, and then pouring the material into a painting machine to spread it onto the road surface to a thickness of about 2 mm. This method requires complex equipment, which causes traffic congestion, and has the disadvantage that it is difficult to apply a uniform thickness because the paint is applied directly to the road during construction. Furthermore, due to the artificial scattering of reflectors using manual machinery at the site, there were problems such as retroreflection falling off at night caused by uneven settling of the reflectors, and the glass beads applied unevenly to the surface easily detaching.

[0015] On the other hand, adhesive sheets, which offer shorter construction times and relatively free expression of various shapes and colors compared to on-site painting with paint, have various defects such as difficulty in overcoming peeling caused by moisture penetration, dust, and humidity due to their inability to treat voids in the road surface, and material loss after cutting.

[0016] Furthermore, the aforementioned conventional construction methods have short fading and wear cycles, leading to the problem of causing ever-increasing traffic congestion due to repetitive construction work that requires frequent road closures. In addition, since most paints used for road lane marking are volatile oil-based paints, a new problem is emerging regarding environmental pollution caused by volatile substances released during construction and substances generated from wear due to vehicle traffic after application.

[0018] Therefore, it is necessary to develop an adhesive tape for road markings that can overcome these problems.

[0020] To solve these problems, Registered Patent Publication No. 10-0740296 discloses a thermoplastic hot melt tape for road marking characterized by comprising: a main raw material mixed with hydrocarbons and EVA (Ethylene-Vinyl Acetate copolymer); calcium carbonate added as a filler to the main raw material; titanium oxide added as a pigment for identification of the hot tape for road marking; tow polycule polyethylene wax added as a surface leveling agent to prevent contamination of vehicle oil or vehicle wheels after installation of the hot tape for road marking; dioctyl phthalate added as a plasticizer to prevent cracking of the hot melt tape for road marking during the winter season; calcium stearate added as a stabilizer for thermal stability after installation of the hot melt tape for road marking; and ceramic glass beads added as an identification reflector for more continuous retroreflection at night.

[0022] In addition, Registered Patent Publication No. 10-0680566 describes a device manufactured to have a predetermined width, thickness, and length, comprising a substrate coated with 35-40% by weight of high-brightness glass beads having a diameter of 400-700㎛ based on 100% by weight of water-based epoxy resin, a coloring agent for expressing a tape color corresponding to the lane color, and a curing agent, wherein the device comprises an upper layer supporting the load of vehicles or pedestrians and a lower layer directly adhered to the road surface of asphalt paved roads or cement concrete paved roads. The lower layer has a composition ratio of 19% by weight of butyl rubber, 8% by weight of polyisobutylene, 22% by weight of polybutene, 33% by weight of calcium carbonate (CaCO3), 8% by weight of carbon black, and 10% by weight of petroleum resin, and the upper layer comprises for increasing the bonding strength between the upper and lower layers and maintaining the shape of a roll tape-type body A roll-type road surface sheet impregnated with a fibrous grid is disclosed.

[0023] However, since the aforementioned road sheets are pre-manufactured according to the required size and pattern and heat-bonded on-site, there are no gaps with the road surface. This allows for simple installation without requiring complex devices or equipment at the site, thereby eliminating the need to block traffic at the work site for extended periods. Nevertheless, they still fail to prevent cracking or breaking of the road sheets due to environmental factors, such as during the cold winter season. Increasing the amount of plasticizer added to prevent this reduces flexibility and weakens impact resistance. Furthermore, plasticizer components are hazardous substances that generate endocrine disruptors harmful to the human body, and excessive use causes environmental pollution. Additionally, there was an issue regarding the insufficient anti-slip effect to prevent accidents caused by pedestrians or vehicles slipping during rain or snow.

[0024] In addition, in the case of Registered Patent Publication No. 10-0680566, the road surface sheet is composed of two layers, an upper layer and a lower layer, so there was the inconvenience of having to distinguish the attachment surface of the road surface sheet during construction. Prior art literature

[0026] Registered Patent Publication No. 10-0740296 (Published July 18, 2007) Registered Patent Publication No. 10-0680566 (Published February 8, 2007) Registered Patent Publication No. 10-1881585 (Published July 25, 2018) Published Patent Publication No. 10-2023-0127390 (September 1, 2023) The problem to be solved

[0027] The objective of the present invention is to be configured so that when performing road marking according to a predetermined pattern and shape on a road surface, construction can be performed by heat pressing at the site, wherein

[0028] By configuring the protrusions formed on the heat-bonded tape to enhance retroreflection and improve visibility, and also to reduce the wear rate,

[0029] The invention provides a multi-functional protruding heat-bonded tape for road marking that reduces the breakage rate of the tape during the manufacturing process and reduces the wear rate even after installation on the road surface, and further provides a method for manufacturing the said tape. means of solving the problem

[0031] The multifunctional protruding heat-attachable tape for road marking according to the present invention, devised to achieve the aforementioned purpose, is a heat-attachable tape manufactured such that a plurality of protrusions are formed on its surface using the manufacturing apparatus for a fusion sheet for road marking disclosed in Registered Patent Publication No. 10-1905389.

[0032] The above protrusions enhance retroreflection, thereby improving visibility and providing the functionality to reduce wear.

[0034] At this time, the above-mentioned multi-functional protruding heat-adhesive tape for road marking is,

[0035] Based on 100 parts by weight of filler, the composition is characterized by using 20 to 30 parts by weight of binder; 30 to 50 parts by weight of glass beads; 10 to 20 parts by weight of elastic material; 10 to 20 parts by weight of pigment; 10 to 20 parts by weight of anti-settling material; 5 to 10 parts by weight of viscosity modifier; and 10 to 20 parts by weight of thermoplastic resin.

[0036] In addition, the above filler is characterized as being bentonite or dolomite.

[0037] In addition, the above binder is characterized by using moncarbonate wax.

[0038] In addition, the elastic material is characterized by using one or more selected from ethylene vinyl acetate (EVA), styrene butadiene styrene copolymer (SBS), calcium carbonate (CaCO3), and talc.

[0039] In addition, the above anti-settling agent is characterized by using silica powder, and the above thermoplastic resin is characterized by using nylon, a polyamide-based synthetic fiber.

[0040] In addition, the viscosity modifier is characterized by using one or more vegetable oils selected from linseed oil, soybean oil, and orange oil. Effects of the invention

[0042] According to the multifunctional protruding heat-adhesive tape for road marking according to the present invention, when performing road marking according to a predetermined pattern and shape on a road surface, it is possible to install it by heat pressing at the site,

[0043] Visibility can be improved by enhancing retroreflection through the protrusion configuration formed on the heat-bonded tape, and the wear rate can also be reduced.

[0044] In particular, the composition according to the present invention has the advantage of reducing the breakage rate of the tape during the manufacturing process and reducing the wear rate even after installation on the road surface. Specific details for implementing the invention

[0046] Terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0048] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0050] Before proceeding with the following description with reference to the drawings, it should be noted that matters not necessary to reveal the gist of the invention, namely known configurations that a person skilled in the art with ordinary knowledge can obviously add, have not been illustrated or described in detail.

[0052] The present invention relates to a multifunctional protruding heat-adhesive tape for road marking.

[0053] Specifically, the invention relates to a heat-bonded tape configured to be installed by heat pressing on-site when performing road marking according to a predetermined pattern and shape on a road surface.

[0054] By configuring the protrusions formed on the heat-bonded tape to enhance retroreflection and improve visibility, and also to reduce the wear rate,

[0055] The present invention relates to a multi-functional protruding heat-bonded tape for road marking that reduces the breakage rate of the tape during the manufacturing process and reduces the wear rate even after installation on the road surface.

[0057] The multifunctional protruding heat-adhesive tape for road marking according to the present invention is used by mixing, based on 100 parts by weight of a filler, 20 to 30 parts by weight of a binder; 30 to 50 parts by weight of glass beads; 10 to 20 parts by weight of an elastic material; 10 to 20 parts by weight of a pigment; 10 to 20 parts by weight of an anti-settling material; 5 to 10 parts by weight of a viscosity modifier; and 10 to 20 parts by weight of a thermoplastic resin in weight ratios.

[0059] In this case, bentonite can be used as a filler; since the bentonite has adsorption properties, it is used as an adsorbent or filler by utilizing its high cation exchange capacity to improve waterproofing. Bentonite may also be replaced with dolomite.

[0061] As a binder, Mon carbonate wax from Clariant International's LICO WAX E flasks is used.

[0063] In addition, as an elastic material, one or more selected from ethylene vinyl acetate (EVA), styrene butadiene styrene copolymer (SBS), calcium carbonate (CaCO3), and talc may be used, and if one or more of the above compositions are to be used, they may be mixed using an amount of 1 / n.

[0064] This elastic material reduces the rate of damage to the heat-bonded tape being manufactured by a scraper used to form a plurality of protrusions on the tape surface when manufacturing the heat-bonded tape according to the present invention, and furthermore, reduces wear on the tape used for marking on the road surface due to problems such as being run over by a vehicle.

[0065] It was confirmed that using less than 10 parts by weight of this elastic material could not reduce the wear rate and breakage rate, and even exceeding 20 parts by weight did not have a greater effect.

[0067] In addition, titanium oxide (TiO2) is used as an inorganic pigment. The titanium oxide is used to remove gloss in acid-resistant and alkali-resistant paints, white pigments with strong hiding power, artificial silk, staple fibers, and chemical fibers, and because it is harmless, it is particularly used in cosmetics, paints, paints for toys, and packaging paper for food.

[0068] In addition, it is used for polishing metal products, as a raw material for organic titanium compounds, for enamel or ceramic glazes, for titanium capacitors, and for dental materials, as well as for soap, dyeing, printing ink, and artificial leather. Titanium oxides known include titanium oxide (II), titanium oxide (III), titanium oxide (IV), and titanium peroxide, but in the present invention, it is preferable to use titanium oxide (IV).

[0069] Because this titanium oxide has excellent light reflectivity in the infrared region, it is highly effective in suppressing the rise in road surface temperature.

[0071] In addition, silica powder is used as an anti-settling agent, and one or more vegetable oils selected from linseed oil, soybean oil, and orange oil are used as a viscosity modifier.

[0072] However, orange oil can be primarily used as a viscosity modifier. In this case, when preparing the orange oil, the orange peel and pulp are separated, and juice is extracted from the peel and mixed with olive oil in a ratio of 2 parts juice to 1 part oil.

[0073] Afterwards, the pulp is dried and ground, and 50 parts by weight of the ground orange is mixed with 100 parts by weight of the oil mixture based on weight ratio.

[0074] Accordingly, it is possible to improve the strength of the heat-bonded tape by controlling viscosity and imparting aggregate functions to the composition.

[0075] As another example, when producing orange oil, the peels of five oranges and one watermelon may be prepared. When juicing the orange peels, the watermelon may be crushed to produce watermelon juice (including seeds), which is then boiled and reduced. After mixing in the orange peels, purified water may be added as needed while boiling to form the juice. Accordingly, the watermelon seeds may be further included in the orange juice to further enhance its function as an aggregate.

[0077] In addition, nylon, a polyamide-based synthetic fiber, is used as the thermoplastic resin. This thermoplastic resin imparts thermoplastic properties and simultaneously functions in conjunction with silica powder, which acts as an anti-settling agent, to perform a strength-regulating function. Due to this strength-regulating function, the strength can be further enhanced when processing protruding projections during the manufacturing process described below.

[0079] A method for manufacturing a heat-bonded tape configured as described above comprises: a raw material supply step of mixing and supplying the remaining composition, excluding glass beads, as a raw material;

[0080] A processing step of forming the raw material supplied through the above raw material supply step into a tape shape while adjusting the thickness using a roller;

[0081] An adhesive application step of applying an adhesive to the surface of the heat-bonded tape processed through the above processing step;

[0082] It is achieved through a release liner attachment step in which a release liner is attached to the surface of the heat-bonded tape processed through the above processing step.

[0084] At this time, the processing step comprises a protruding sheet processing step of forming a plurality of protruding protrusions on the surface of a sheet that has formed a sheet shape by the raw material supplied in the raw material supply step being attached to and pressed against the surface of a roller, using a scraper having a plurality of edges on its outer surface;

[0085] After the above-mentioned protruding sheet processing step, a glass bead spraying step is included in which glass beads are sprayed onto a protruding sheet conveyed through a roller to mix the glass beads.

[0087] The manufacturing apparatus for this manufacturing method utilizes the manufacturing apparatus for a fused sheet for road marking developed by the inventor of Registered Patent Publication No. 10-1905389.

[0088] The above technology relates to an apparatus for manufacturing a fusion sheet for road marking that is attached to a road surface to form road markings such as lanes, and comprises: a raw material supply unit that supplies heated sheet raw material; a roller unit rotatably installed at the rear of the raw material supply unit and having the sheet raw material attached to its surface; and a thickness adjustment unit installed at the upper side of the roller unit and having contact with the sheet raw material attached to the surface of the roller unit to adjust the thickness of the fusion sheet; wherein the roller unit comprises an inner tube; an outer tube installed to surround the inner tube; and a cooling water flow passage formed between the inner tube and the outer tube.

[0089] The manufacturing device for a fusion sheet for road marking according to the present invention is equipped with a cooling means for the fusion sheet in the roller unit, so the device can be simplified and miniaturized, and furthermore, since the cooled fusion sheet can be easily detached from the roller unit, the manufacturing of the fusion sheet can be easy and the quality can be improved.

[0090] In addition, it is specialized in manufacturing protruding heat-bonded tapes using a scraper having multiple edges.

[0092] Reference Example. Evaluation of the failure rate of heat-bonded tape

[0093] The evaluation of the breakage rate is performed using the manufacturing method and manufacturing apparatus according to the above-described embodiment.

[0094] However, the composition was varied in the presence or absence of an elastic material, and 10 specimens were prepared for each. The results are shown in [Table 1].

[0096] Elastic material not included Production quantity Number of defective items 10 EA 5 EA Includes elastic material Production quantity Number of defective items 10 EA 1 EA

[0097] Heat-bonded tape using fillers, binders, glass beads, elastomers, inorganic pigments, viscosity modifiers, and thermoplastic resins

[0099] In the experiment, an elastic material was used by mixing calcium carbonate and talc in a 1:1 ratio. In the test without the elastic material, 5 out of 10 heat-bonded tapes were found to be defective, and it was confirmed that most of them could not withstand the scraper and the sheet tore.

[0100] However, when an elastic material is included, the number of defects was confirmed to be 1. Therefore, an elastic material is absolutely necessary when using the manufacturing method and manufacturing apparatus according to the present invention.

[0102] However, in order to limit the number of defects to less than one, silica powder is additionally included as an anti-settling agent.

[0103] In this case, when 10 specimens were produced, no defects were found at all.

[0104] Afterwards, the device was operated for 2 hours to continuously produce heat-bonded tape, and although scratches on the sheet were found in 2 parts, this did not differ significantly from the defect rate of a normal specimen.

[0106] A strength test was performed on the heat-bonded tape according to the present invention, which was manufactured including an anti-settling agent as described above.

[0107] A lane marking tape like the present invention must have a tensile adhesive strength of 0.6 MPa or more. This is because, even after it hardens following use as a marking on the road surface, it may be worn down by being rubbed against wheels as vehicles continuously pass by, so it must have a certain strength.

[0108] To this end, a sample with a bonding surface of 25 x 25 mm was prepared, and the adhesive strength was evaluated by applying an outward load to the sample using the ASTM D1002 test method, and the result showed that it had a tensile adhesive strength of 0.7 MPa.

[0110] According to the multifunctional protruding heat-attachable tape for road marking and the method for manufacturing said tape configured as described above, when performing road marking according to a predetermined pattern and shape on a road surface, it is possible to apply the marking by heat pressing at the site,

[0111] Visibility can be improved by enhancing retroreflection through the protrusion configuration formed on the heat-bonded tape, and the wear rate can also be reduced.

[0112] In particular, the composition according to the present invention has the advantage of reducing the breakage rate of the tape during the manufacturing process and reducing the wear rate even after installation on the road surface.

[0114] The description above using the drawings describes only the main aspects of the present invention, and it is obvious that the present invention is not limited to the configuration of the drawings, as various designs are possible within the technical scope.

Claims

Claim 1 A multi-functional protruding heat-attachable tape for road marking, manufactured using a manufacturing device for a fusion sheet for road marking to form a plurality of protrusions on its surface, and having the functionality to improve visibility by enhancing retroreflection and reduce wear rate due to said protrusions, wherein the multi-functional protruding heat-attachable tape for road marking comprises, based on 100 parts by weight of a filler: 20 to 30 parts by weight of a binder; 30 to 50 parts by weight of glass beads; 10 to 20 parts by weight of an elastic material; 10 to 20 parts by weight of a pigment; 10 to 20 parts by weight of an anti-settling agent; and 5 to 10 parts by weight of a viscosity modifier. A multi-functional protruding heat-adhesive tape for road marking, characterized in that the composition comprises 10 to 20 parts by weight of a thermoplastic resin and a viscosity modifier, wherein the viscosity modifier is orange oil, wherein the orange oil is obtained by separating the orange peel and pulp, extracting juice from the peel, and mixing the juice with olive oil in a ratio of 2 parts by weight to 1 part by weight to obtain an oil mixture, and wherein the pulp is dried and ground to obtain ground orange, and 50 parts by weight of the ground orange is mixed with 100 parts by weight of the oil mixture based on weight ratio. Claim 2 delete Claim 3 A multifunctional protruding heat-adhesive tape for road marking according to claim 1, characterized in that the filler is bentoniat or dolomite. Claim 4 A multifunctional protruding heat-adhesive tape for road marking according to claim 1, characterized in that the binder uses moncarbonate wax. Claim 5 A multifunctional protruding heat-adhesive tape for road marking according to claim 1, characterized in that the elastic material uses one or more selected from ethylene vinyl acetate (EVA), styrene butadiene styrene copolymer (SBS), calcium carbonate (CaCO3), and talc. Claim 6 A multifunctional protruding heat-adhesive tape for road marking according to claim 1, characterized in that the anti-settling agent uses silica powder and the thermoplastic resin uses nylon, which is a polyamide-based synthetic fiber. Claim 7 delete

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