KR100933923B1 - Paint composition of lane painting and painting process using thereof - Google Patents

Abstract

PURPOSE: A three-component paint composition for painting lanes is provided to improve visibility of a driver, adhesive property with a road, and workability by avoiding the influence of water-film in rainwater. CONSTITUTION: A painting process using a three-component paint composition for painting lanes comprises the steps of: (a) preparing a first composition including a monomer 40~80 parts by weight and initiator 5~15 parts by weight based on a unsaturated polyester resin 100.0 parts by weight, and a second composition including a reaction monomer 70~150 parts by weight, a catalyst 6~30 parts by weight and a coloring pigment 70~90 parts by weight; (b) measuring the first composition and the second composition through a pump or air in a weight ratio of 40~60 : 60~40 and then inline mixing them through a nozzle; (c) spraying the mixed painting composition by a spray gun; and (d) spraying a reflecting material mixed with glass beads 60~70 weight% and special optical 30~40 weight% on the lane.

Description

Three-part lane coating composition and lane coating method using same {PAINT COMPOSITION OF LANE PAINTING AND PAINTING PROCESS USING THEREOF}

The present invention relates to lane coating methods and lane coating compositions for use therein.

Conventional lanes are applied by coating or by melting and applying a thermoplastic resin.

In addition, the glass beads are used to improve visibility, but when the mutual adhesion between the glass beads and the paint is not good, there is a problem in that the separation is easy. There is no effect of the visibility according to the beads.

In addition, the coating method using a thermoplastic resin requires a high temperature, and there is an inconvenience in passing due to a long disclosure period after construction, and the construction was impossible when the road surface was frozen like in winter.

In order to solve this problem, an acrylic resin or the like is being improved. However, in the case of an acrylic resin, one liquid consisting of a resin and a monomer, and two liquids containing a curing agent and a catalyst are used. And two liquids are mixed and sprayed within the pot life. However, since 2 liquids must be mixed in very small amounts (100: 1 weight ratio compared to 1 liquid), it is difficult for a worker to weigh and mix a small amount in the actual construction site. In case of mixing, the reaction occurred very quickly, so the pot life was short and there was difficulty in construction.

The present invention for solving the above problems, because it is not affected by the water film even in the rain, it shows visibility, and lane coating methyl methacrylate (hereinafter referred to as MMA) resin composition excellent in adhesion with the road and this To provide a lane painting method used.

In detail, the present invention is to provide a new resin composition for improving the difficulty of controlling the mixing amount of the catalyst when mixing the resin composition and the catalyst composition of the operator when using the existing acrylic resin composition. The present invention is to provide a lane-painting composition that can be mixed in a similar content by the discomfort of the operator difficult to control the mixing amount when mixing, and increase the pot life to secure the working time.

In addition, the present invention is to provide a method for efficiently constructing a lane using the lane coating composition. The present invention by using a device capable of pumping the same amount of the composition in each reactor and pumped to a predetermined amount by pumping a predetermined amount without having to spray beforehand, it is automatically mixed, easy to adjust the pot life to improve the work efficiency To provide a lane construction method.

The present invention relates to a lane painting method and a lane coating composition used therein.

The present inventors have used the composition containing the catalyst in a very small amount (about 100: 1 weight ratio of the resin) in the case of the conventional two-component MMA composition, and as a result of the study to improve the difficulty of the operator to quantify the mixing ratio, the catalyst It has been found that the work efficiency of the operator can be improved by redeveloping the composition so that it can be mixed in the same amount with the resin composition without having to mix the composition in small amounts.

In addition, the present inventors have developed a mixing apparatus to be easily constructed using such a lane-painting composition, and by using such a device to put each composition in the reactor, without the need for metering and mixing, pump or aero It was found that by pumping, the meter was automatically weighed in the same amount, and after pumping, it was automatically mixed in-line at the nozzle and sprayed through the spray gun, thereby facilitating adjustment of pot life.

Specifically, the lane coating method of the present invention

a) one-component (substrate (A)) composition comprising 40 to 80 parts by weight of reaction monomer and 5 to 15 parts by weight of initiator with respect to 100 parts by weight of unsaturated polyester resin containing methyl methacrylate (MMA); 2 parts containing 70-150 weight part of reaction monomers, 6-30 weight part of catalysts, and 70-90 weight part of coloring pigments with respect to 100 weight part of unsaturated polyester resins containing methyl methacrylate (MMA) (main body (B )) Preparing each of the compositions;

b) metering the one-liquid composition and the two-liquid composition contained in each reactor at a weight ratio of 40 to 60:60 to 40 by a pump or air, followed by in-line mixing through the nozzle;

c) spraying the mixed lane coating composition with a spray gun; And

d) spraying a filler mixed with 60 to 70% by weight of glass beads and 30 to 40% by weight of a special optical reflector on the surface of which is made of a spherical ceramic, the surface of which is covered by ceramic glass;

It includes.

In the present invention, the one-liquid (main body (A)) composition and the two-liquid (main body (B)) composition are used by mixing in a weight ratio of 40 to 60: 60 to 40, the one liquid (main (A)) as needed 10 to 40 parts by weight of an organic isocyanate or reactive acrylic resin may be further added to 100 parts by weight of the mixture of the composition and the two liquid (main ingredient (B)) composition. At this time, it is preferable that the three-component composition selected from the organic isocyanate or reactive acrylic resin is mixed with the one-liquid (main material (A)) composition. The three-liquid composition is intended to control the reaction rate, and when mixed in the above range can achieve a suitable curing time of 10 to 15 minutes, when the temperature is low, such as winter to adjust the curing rate through the content change It is advantageous.

In addition, the present invention is a one-component (main body (A)) composition containing 40 to 80 parts by weight of reaction monomer, 5 to 15 parts by weight of initiator with respect to 100 parts by weight of unsaturated polyester resin containing methyl methacrylate (MMA) ; 2 parts containing 70-150 weight part of reaction monomers, 6-30 weight part of catalysts, and 70-90 weight part of coloring pigments with respect to 100 weight part of unsaturated polyester resins containing methyl methacrylate (MMA) (main body (B )) Composition; A three-component composition comprising an organic isocyanate or reactive acrylic resin; And a three-component MMA resin composition for lane coating comprising 60 to 70% by weight of glass beads and 30 to 40% by weight of a core made of a spherical ceramic and a special optical reflector on which the glass is wrapped. It is included in the scope of the invention.

In particular, the present invention is made of 60 to 70% by weight of glass beads and the center portion of the spherical ceramic as the reflector, by using a mixture of a special optical reflector 30 to 40% by weight of the spherical surface of the ceramic glass, It is possible to provide a three-part type MMA resin composition for lane coating that can improve visibility even at night and at night when it is rainy.

In general, the glass bead is a reflector for securing night visibility of the lane. In other words, the visibility (brightness) increases as the amount of glass beads added increases, but when the raindrops are submerged in rainwater at night, the visibility (brightness) cannot be expressed. Therefore, special optics were used to secure visibility at night time. Special optics are not affected by the wet state at night, even when it is rainy, and expresses retroreflectiveness. Therefore, when glass beads and special optics are mixed at an appropriate ratio, visibility (brightness) can be secured at night and at night. For this reason, in the present invention, the maximum proper mixing ratio of glass beads and special optical bodies was determined.

In the case of using the special optical reflector in a fusion lane coating composition using a general thermoplastic resin, the surface of the special optical reflector has a rough surface and many pores, resulting in a poor adhesive strength with the fusion composition. Although there was a problem that is difficult to use, when using the three-component MMA resin composition of the present invention was able to solve this problem.

The special optical reflector used in the present invention has a central portion (core) made of a spherical ceramic, and the spherical surface is a structure in which ceramic crystal grains of fine crystals having excellent durability and reflective performance are wrapped. Therefore, since the light can be refracted at various angles, even when a water film is formed on the road surface in rainy weather, the light emitted from the headlight of the vehicle can be refracted at various angles, thereby showing visibility. These products include 3M company, elements.

Hereinafter, the composition and the construction method of the present invention will be described in more detail.

In the present invention, the one-liquid (main body (A)) composition and the two-liquid (main body (B)) composition are mixed at a weight ratio of 40 to 60: 60 to 40, and the three-liquid composition is 10 to 10 parts by weight of the mixture thereof. It is preferable to use it by mixing 40 weight part. Therefore, when mixing using the pump or air, after mixing the three-component composition with the one-component composition or two-component composition in advance, the content is adjusted to adjust the content of the one-liquid (main (A)) composition and the two-liquid (main (B)) It is also possible to pump the composition so that it is the same amount, and after it puts into each reactor, it pumps so that the said 1 liquid (main body (A)) composition and 2 liquid (main body (B)) composition may become the same content. In the reactor containing the three-liquid composition, the content may be controlled and pumped.

In addition, in order to easily pump the 1 liquid (main body (A)) composition and the 2 liquid (main body (B)) composition to the same content, the 1 liquid (main body (A)) composition and the 2 liquid (main body (B) It is preferable to prepare the viscosity of the composition in the same manner.

First, the one-component (substrate (A)) composition contains 40 to 80 parts by weight of reaction monomer and 5 to 15 parts by weight of initiator (curing agent) based on 100 parts by weight of unsaturated polyester resin containing methyl methacrylate (MMA). And 80 to 120 parts by weight of the filler.

In the present invention, the unsaturated polyester resin containing methyl methacrylate (MMA) is a resin polymerized and modified by glycol, phthalic acid and methyl methacrylate (MMA), and the weight average molecular weight is preferably 3000 to 10,000. Preferably, glycols having two or more functional groups (Glycol), phthalic acid (Phthalic acid) having two functional groups, and methyl metal acrylate (Methyl metacrylate, MMA) may be obtained by polymerization. When the molecular weight is less than 3,000, the hardness is high, cracking may occur, and when it exceeds 10,000, it is difficult to control workability due to high viscosity.

The reaction monomer may be any one or two or more selected from methacrylic acid, acrylic acid, 2-hydroxyethyl methacrylate (2-HEMA), 2-hydroxyethyl acrylate (2-HEA). Most preferably, the use of acrylic acid is excellent in the coating film and good control of the curing rate. The content is preferably 40 to 80 parts by weight because it is easy to adjust the curing rate.

The initiator may be used without limitation as long as it is a peroxide initiator. Preferably benzoyl peroxide can be used. The content is preferably 5 to 15 parts by weight because it is easy to adjust the curing rate.

The reflector is composed of 60 to 70% by weight of glass beads and a central portion (core) made of a spherical ceramic, and the spherical surface may be mixed with a special optical reflector 30 to 40% by weight. The special optical reflector is 3M company, there are elements. The content of the optical reflector in the range of 30 to 40% by weight is preferable because the brightness is more than 300mcd / ㎡ · Lux in rainy weather, 150mcd / ㎡ · Lux may be expressed in the rain at night.

Next, the two-component (substrate (B)) composition is based on 100 parts by weight of unsaturated polyester resin containing methyl methacrylate (MMA), 70 to 150 parts by weight of reaction monomer, 6 to 30 parts by weight of catalyst and pigmented pigment. 70 to 90 parts by weight.

The catalyst may use DMA (dimethyl aniline) and Co-octate (cobalt octate). When adding an organic isocyanate further, it is preferable to use DMA and Co-octate simultaneously, and when adding a reactive acrylic resin, it is preferable to use DMA alone. Its content is preferably 6 to 30 parts by weight because the pot life can be adjusted to 5 to 30 minutes.

The pigment may be used without limitation as long as it is a pigment used in the field of lane coating, and specifically, for example, titanium dioxide may be used. The content is 70 to 90 parts by weight it is easy to express the color.

Next, the three-component composition contains an organic isocyanate or reactive acrylic resin. In the present invention, by adding 10 to 40 parts by weight of the organic isocyanate or reactive acrylic resin, it is possible to express a curing time of 10 to 15 minutes even at a temperature of 10 to 20 ℃, such as winter can shorten the construction period have.

The organic isocyanate is methylene diisocyanate, phenylene diisocyanate, chlorophenylene diisocyanate, α, α'-xylene diisocyanate, toluene diisocyanate, 1,5--naphthalene diisocyanate, isophorone diisocyanate, methylene bis (cyclo) Hexyl isocyanate), or any one or two or more selected from cyclohexylene diisocyanate (1,2-; 1,3-; or 1,4-) may be used. The composition may be reacted with urethane using a reactive monomer having a -OH group, an initiator (Peroxide), including an organic isocyanate group. In the composition, an unsaturated polyester resin, a reaction monomer, a curing agent, and an organic isocyanate are polymerized so that a urethane bond coexists with the unsaturated ester bond. Due to the coexistence of the urethane bonds can be obtained a strong yet flexible coating by solving the curable shrinkage problem that may occur during curing of the unsaturated polyester resin.

The reactive acrylic resin may be polymethyl methacrylate (PMMA). The composition is a radical by mixing a double bond of a reactive monomer having a -OH group, including a reactive acrylic resin, and an initiator. The reaction can be initiated and cured. The composition forms a radical initiation reaction with an unsaturated polyester resin, a reaction monomer, a curing agent, and a reactive acrylic resin. Coexistence of these bonds solves the curable shrinkage problems that may occur during the curing of unsaturated polyester resins, improves reactivity, and reduces the color change caused by ultraviolet rays of Co-octate to maintain beautiful colors and at the same time provide a strong and flexible coating. You can get it.

The three-component composition is a suitable viscosity range and appropriate curing time to use 10 to 40 parts by weight of the three-component composition with respect to 100 parts by weight of the mixture of the one-component (main (A)) composition and the two-component (main (B)) composition Since the hardening time of about 10 minutes can be expressed, it is preferable.

The three-component MMA resin composition as described above is contained in each reactor, and then metered in a predetermined amount by a pump or air. At this time, in order to make measurement easy, it is good that the viscosity of 1 liquid (main body (A)) composition and 2 liquid (main body (B)) composition is the same.

The pumped composition is then inline mixed through the nozzle, and it is desirable to allow the three nozzles to be combined and mixed in one nozzle to facilitate mixing, so that they are mixed at the nozzle inner wall and mixed thoroughly by friction. Specifically, it is preferable to form an empty space portion in the nozzle so that the three liquids may be mixed with each other by hitting the empty space portion while being transferred at high pressure by the nozzle. It is also possible that the inline mixing is in one or more screw mixers formed in the nozzle.

Next, the mixed lane coating composition is sprayed with a spray gun to paint the lane.

Lane coating composition according to the present invention is easy to control the content of the catalyst compared to the conventional two-component composition can be easily operated by the operator workability is greatly improved.

In addition, when the lane is painted using the lane coating composition according to the present invention, the visibility is improved even in the rain by a special optical reflector, and there is an advantage that the construction can be performed regardless of the season.

In addition, the construction method according to the present invention is easy to mix the composition, the content of the catalyst can be easily controlled, since the reaction does not change sensitively according to the content control, it is easy to control the construction time, Since it is mixed in the nozzle after the pumping, compared to the conventional method of applying the composition in advance while mixing the composition in advance, there is an effect capable of sufficiently expressing the pot life as it can be applied simultaneously with mixing.

Hereinafter, the present invention will be described by way of example for specific description of the present invention, but the present invention is not limited to the following examples.

Hereinafter, physical properties were measured by the following method.

1) Night brightness

Sample preparation process for night luminance measurement of the present invention is as follows. First, the sample is applied to a uniform and flat glass plate (approximately 165mm x 120mm) so that the thickness of the dried coating film is up to 0.1mm, and then placed horizontally and evenly spread 100g of the reflector (glass beads and special optics) about 10cm in height. Then harden.

The sample produced as described above was attached to the back of the sample using an electronic luminance meter (DELTA, LTL2000SQ) to measure the brightness automatically. Proper brightness required for securing driver's safety and visibility at night is 200 mcd / ㎡ · Lux or more, the luminance to be implemented by the present invention is 300 mcd / ㎡ · Lux or more.

2) night rainy brightness

Night rainy weather luminance measurement of the present invention is the same as the sample manufacturing process for the above-mentioned nighttime luminance measurement, but wet the surface of the sample produced by spraying a sufficient amount of water on the sample produced to simulate the wet state by rainwater during rain State and measure the luminance using an electronic luminance meter. The luminance meter used here is the same as the device used for the nighttime luminance measurement. In addition, the brightness required at nighttime rain is 100 mcd / m 2 · Lux or more, and the luminance to be implemented in the present invention is 150 mcd / m 2 · Lux or more.

3) Curing time

The method for measuring the curing state of the sample produced for measuring the physical properties of the present invention is that after the proper time has elapsed, if the cotton or cotton is contacted on the surface of the sample and the coating or liquid does not appear, the curing is completed, and when the sample is dried The total time taken is the curing time. In order to evaluate the effect of three liquids (dimethyl isocyanate) on the curing time of the present invention, the curing time according to the addition amount and air temperature (10, 20, 30 ° C.) was measured, respectively.

[Production Example 1]

1 liquid (main ingredient (A)) composition

50 parts by weight of the reaction monomer (acrylic acid) and 10 parts by weight of the initiator (benzoyl peroxide) are mixed with 100 parts by weight of the unsaturated polyester resin (MMA) modified with methyl methacrylate (MMA) in one liquid (main body). (A)) The composition was prepared.

2 liquid (main body (B)) composition

To 100 parts by weight of methyl methacrylate (MMA) resin, 70 to 150 parts by weight of reaction monomer (acrylic acid), 10 parts by weight of catalyst (N, N-dimethylaniline, AKZO NOBEL) and 80 parts by weight of pigmented pigment (titanium dioxide) To prepare a two-liquid (main body (B)) composition.

[Production Example 2]

Prepared in the same manner as in Preparation Example 1, dimethyl isocyanate (PAPI 135, Kumho Petrochemical) was prepared by mixing in advance to one liquid (main (A)) composition. The mixing amount was prepared by mixing 10 parts by weight based on 100 parts by weight of the mixture of the one-liquid composition and the two-liquid composition.

[Production Example 3]

Prepared in the same manner as in Preparation Example 1, dimethyl isocyanate (PAPI 135, Kumho Petrochemical) was prepared by mixing in advance to one liquid (main (A)) composition. The mixed amount was prepared by mixing 20 parts by weight based on 100 parts by weight of the mixture of the one-liquid composition and the two-liquid composition.

[Production Example 4]

Prepared in the same manner as in Preparation Example 1, dimethyl isocyanate (PAPI 135, Kumho Petrochemical) was prepared by mixing in advance to one liquid (main (A)) composition. The mixing amount was prepared by mixing 30 parts by weight with respect to 100 parts by weight of the mixture of the one-liquid composition and the two-liquid composition.

Production Example 5

Prepared in the same manner as in Preparation Example 1, dimethyl isocyanate (PAPI 135, Kumho Petrochemical) was prepared by mixing in advance to one liquid (main (A)) composition. The mixed amount was prepared by mixing 40 parts by weight with respect to 100 parts by weight of the mixture of the one-liquid composition and the two-liquid composition.

Example 1

The one-liquid composition and the two-liquid composition prepared in Preparation Example 1 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun. On the sprayed coating film, a reflector (70% by weight of glass beads having an average particle diameter of 70 µm, 3M, a special optical reflector, and 30% by weight of elements) was sprayed at a content of 400g / 1m2.

Curing time and brightness were measured and shown in Table 1 below.

Example 2

The one-liquid composition and the two-liquid composition prepared in Preparation Example 1 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun. On the sprayed coating film, a reflector (60 wt% of glass beads having an average particle diameter of 70 μm, 3M, a special optical reflector, and 40 wt% of elements) was sprayed at a content of 400 g / 1 m 2.

Curing time and brightness were measured and shown in Table 1 below.

Example 3

The one-liquid composition and the two-liquid composition prepared in Preparation Example 2 were put in each reactor and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun.

On the sprayed coating film, a reflector (70% by weight of glass beads having an average particle diameter of 70 µm, 3M, a special optical reflector, and 30% by weight of elements) was sprayed at a content of 400g / 1m2.

Curing time and brightness were measured and shown in Table 1 below.

Example 4

The one-liquid composition and the two-liquid composition prepared in Preparation Example 3 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun.

On the sprayed coating film, a reflector (70% by weight of glass beads having an average particle diameter of 70 µm, 3M, a special optical reflector, and 30% by weight of elements) was sprayed at a content of 400g / 1m2.

Curing time and brightness were measured and shown in Table 1 below.

Example 5

The one-liquid composition and the two-liquid composition prepared in Preparation Example 4 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun.

On the sprayed coating film, a reflector (70% by weight of glass beads having an average particle diameter of 70 µm, 3M, a special optical reflector, and 30% by weight of elements) was sprayed at a content of 400g / 1m2.

Curing time and brightness were measured and shown in Table 1 below.

Example 6

The one-liquid composition and the two-liquid composition prepared in Preparation Example 5 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun.

On the sprayed coating film, a reflector (70% by weight of glass beads having an average particle diameter of 70 µm, 3M, a special optical reflector, and 30% by weight of elements) was sprayed at a content of 400g / 1m2.

Curing time and brightness were measured and shown in Table 1 below.

Comparative Example 1

The one-liquid composition and the two-liquid composition prepared in Preparation Example 1 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun. On the sprayed coating film, a reflector (90 wt% of glass beads having an average particle diameter of 70 μm, 3M, a special optical reflector, and 10 wt% of elements) was sprayed at a content of 400 g / 1 m 2.

Curing time and brightness were measured and shown in Table 1 below.

Comparative Example 2

The one-liquid composition and the two-liquid composition prepared in Preparation Example 1 were put in each reactor, and then pumped while adjusting to be injected at 100 g / min by an air pump. The composition was transferred to the nozzle by pumping, and the two nozzles were combined in one nozzle for inline mixing. It was then sprayed through a spray gun.

On the sprayed coating film, only glass beads having an average particle diameter of 70 μm were sprayed with a content of 400 g / 1 m 2 as a reflector.

Curing time and brightness were measured and shown in Table 1 below.

TABLE 1

As shown in the table, it was found that by using the special optical reflector at 30 to 40% by weight in the embodiment, the night luminance of 300 mcd / m 2 · Lux or more was expressed. In the case of Comparative Example 1 using only 20% by weight of the special optical reflector 281mcd / ㎡Lux did not satisfy the conditions required in the present invention, Comparative Example 2 without the use of a special optical reflector showed almost no night visibility It wasn't.

In addition, in order to adjust the appropriate curing time (about 10 to 15 minutes) of the composition of the present invention as a result of applying 10 to 40% by weight of three liquids (dimethyl isocyanate), respectively, according to the air temperature conditions (10, 20, 30 ℃), Compared with Example 1 in which isocyanate was not added, it was confirmed that the low temperature curing time (10 to 20 ° C) was shortened.

Claims (7)

a) one-component (substrate (A)) composition comprising 40 to 80 parts by weight of reaction monomer and 5 to 15 parts by weight of initiator with respect to 100 parts by weight of unsaturated polyester resin containing methyl methacrylate (MMA); 2 parts containing 70-150 weight part of reaction monomers, 6-30 weight part of catalysts, and 70-90 weight part of coloring pigments with respect to 100 weight part of unsaturated polyester resins containing methyl methacrylate (MMA) (main body (B )) Preparing each of the compositions; b) metering the one-liquid composition and the two-liquid composition contained in each reactor at a weight ratio of 40 to 60:60 to 40 by a pump or air, followed by in-line mixing through the nozzle; c) spraying the mixed lane coating composition with a spray gun; And d) spraying a reflector mixed with 60 to 70% by weight of glass beads and 30 to 40% by weight of a special optical reflector on the surface of which the core is made of a spherical ceramic and the ceramic glass balls are wrapped on the sprayed lane; Lane painting method using a special optical reflector comprising a. The method of claim 1, In-line mixing in step b) is a lane coating method using a special optical reflector made in at least one screw mixer formed in the nozzle. The method of claim 1, A special optical reflector used by adding 10 to 40 parts by weight of an organic isocyanate or reactive acrylic resin with respect to 100 parts by weight of the mixture of the 1 liquid (main (A)) composition and the 2 liquid (main (B)) composition. Lane painting method using a. The method of claim 1, The unsaturated polyester resin containing methyl methacrylate (MMA) is a resin modified by polymerizing glycol, phthalic acid and methyl methacrylate (MMA), and the lane coating method using a special optical reflector having a weight average molecular weight of 1000 to 10,000. . The method of claim 1, The reaction monomer is a lane using a special optical reflector which is one or two or more selected from methacrylic acid, acrylic acid, 2-hydroxyethyl methacrylate (2-HEMA), 2-hydroxyethyl acrylate (2-HEA) How to paint. 1 part (substrate (A)) composition containing 40-80 weight part of reaction monomers and 5-15 weight part of initiators with respect to 100 weight part of unsaturated polyester resin containing methyl methacrylate (MMA); 2 parts containing 70-150 weight part of reaction monomers, 6-30 weight part of catalysts, and 70-90 weight part of coloring pigments with respect to 100 weight part of unsaturated polyester resins containing methyl methacrylate (MMA) (main body (B )) Composition; A three-component composition comprising an organic isocyanate or reactive acrylic resin; And 60 to 70% by weight of glass beads and a core made of a spherical ceramic, and a reflector mixed with 30 to 40% by weight of a special optical reflector on which a ceramic glass egg is wrapped. The method of claim 6, The unsaturated polyester resin containing methyl methacrylate (MMA) is a resin modified by polymerizing glycol, phthalic acid and methyl methacrylate (MMA), and has a weight average molecular weight of 3000 to 10,000.