JPS6192204A - Finishing of night highly reflective wall surface - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention contributes to traffic safety, particularly motor vehicle traffic safety.

It is a well-known fact that the number of collisions has increased dramatically with the development of automobile traffic. This invention is very effective in preventing collisions, especially collisions with road structures at night.

BACKGROUND OF THE INVENTION Conventionally, various traffic signs have been used to prevent collisions in motor vehicle traffic. Particularly for nighttime and lll' use, coating of bead-containing paint, installation of reflective mirrors, pasting of reflective tape, and application of night paint are performed. However, even with these preventive measures in place, shaving still occurs. Therefore, it is on a constant increasing trend. JISK5665 traffic paint type 1 and 2 are used as beaded paint 1.
There are two sizes of each species, and J for reflective sheets and tapes.
There are standardized products such as ISZ9117 security reflective sheets and tapes.

Problems to be Solved by the Invention The present invention is intended to clearly recognize danger and the presence of dangerous substances, especially at night and in dark places, and to take driving action to prevent collisions.

``To do this, it is necessary to take into account the speed of the vehicle and create a clear and large 1:4m display that can be clearly seen from a long distance.

Means for Solving the Problems In the present invention, in order to solve the above problems, a colored paint containing glass beads is applied over a wide area of the object.

Means for increasing visibility include increasing retroreflectivity, effective combinations of reflective colors, and creating area effects. In order to achieve high retroreflectivity, it is common knowledge to use glass beads with a high refractive index, but beads with a refractive index of approximately 1.9 are suitable.
~1500 μm is used.

At the same time, a colored paint base is used to color the reflected light, but if pigments and vehicles with good light resistance are selected for this paint, it can be colored in any desired color. Instead, a wide variety of color effects can be produced by combining other colors and by combining the presence or absence of bead scattering. At the same time, paint has the advantage that it can be applied to objects in any shape, so it can be processed into any shape as a sign or marking, and it can also be used to freely write figures and letters.

These figures, letters, and geometric patterns need to be applied on a large scale over a wide area so that they can be clearly distinguished from a distance of several tens of meters! The method of forming one surface depends on the choice of paint depending on whether the material of the surface to be coated is concrete/mortar or metal. In the case of concrete/mortar-based paint, if there is an old paint film on the surface to be painted, remove the old paint film with a wire brush or other suitable tool, and if there are any irregularities, repair them with cement-based filler to make them even.

Next, 9 In. of sealer is applied, but the sealer is selected in relation to the colored paint used in the next step. Vinyl chloride-based 1 Elastic rubber-based, epoxy resin-based, etc., transparent without pigments or colored can be used. Application methods include brushing,
Conventional methods such as roller coating and spray coating are possible. The coating weight may be in the usual range of about 100 to 150 g/rn'.

If the surface to be painted is a metal surface such as a guardrail, if there are any rusty parts, remove the rust with a tool such as a wire brush and apply a rust preventive primer. The anti-rust primer is selected to be compatible with the colored paint to be applied on top. For example, chlorinated rubber-based, epoxy resin-based, and other synthetic resin-based anti-rust primers are suitable.

The application of a sealer or primer can be omitted if the paint film on the surface to be painted is good, or the process can be omitted by using a paint that doubles as the coloring paint applied on top. After that, let it dry.

Next, apply the colored base paint. This base paint gives color to the paint film and at the same time serves as the base for adhering the glass beads that give it reflectivity.The paint is composed of a synthetic resin that has good adhesion to the glass beads and a pigment that has good light resistance. Choose from alkyd resin, chlorinated rubber, acrylic resin, urethane resin, etc., and choose from yellow, red,
Color with pigments with good light resistance such as white or black.

The coating method is based on normal painting methods, but the coating is thicker than normal to ensure that the glass beads stick.

For example, it is applied to a thickness of 90 LLm or 1200 μm. At this time, the color of the paint is 1 so that it can be strongly recognized by the naked eye.
Combining things with high and low brightness, combining things with high and low saturation, painting in rings alternately, or drawing letters and shapes that warn of caution or danger. It will be even more effective if you design it.

Each of these patterns, letters, figures, etc., must be made in a size that can be clearly seen from a distance of several tens of meters.

Immediately after applying the colored paint, glass beads are sprayed on the paint before it dries using a large diameter spray gun called a bead gun or mortar gun, and the paint is fixed. Excess beads can be collected and reused.

In the case of a process where glass beads are scattered in one area using two or more colored paints, for example, if a striped pattern is created with black and yellow, and the glass beads are scattered in the yellow direction, the black part should be sprayed first. The process is to paint it on the surface, let it dry, cure it, paint it yellow, and scatter glass beads.

After the glass beads are fixed and the coating is dry, a fluororesin transparent paint is applied as a finishing coat to prevent the glass beads from coming off and improve the stain resistance and weather resistance. Although other synthetic resin paints such as urethane resin, acrylic resin, and other clears can be used as the m11 paint, fluororesin paints are most suitable in terms of stain resistance and weather resistance. The fluororesin paint is mainly sold by Asahi Glass Co., Ltd. under the trade name Lumiflon, which is cured by crosslinking with incyanate prevolimer, and a room temperature curing type is suitable for on-site application. This paint can be applied by conventional painting means, and the dry film thickness may be from 20 to 25 μm.

Function: The reflective surface formed in this manner stands out clearly from the parking lot when exposed to headlights, especially at night, and exhibits a large marking effect.

Examples Example 1 After cleaning, a vinyl chloride resin transparent base paint (Toakabepi Type 1 sealer, manufactured by Toa Paint Co., Ltd.) was applied to the curb of a green belt of the road using a roller, and after drying for 2 hours, an acrylic resin emulsion and paint yellow were applied. (Toakabepi Riki 1st Class Base

Refractive index l of glass beads, 92, particle size 1 while undried.
05-1410/Am (UB722ML, Union Glass auxiliary) was sprayed with a mortar gun (6 mm diameter) at a pressure of 2.
Spray uniformly and densely at a rate of 5 to 3 kg/crn', leave to dry for 24 hours, and apply a fluororesin transparent paint (Toakabebiyoku Class 1 Clear, manufactured by Toa Paint Co., Ltd.) to a dry average film with a roller.
It was coated to a thickness of 25 μm.

The various properties of the finished coating surfaces are shown in Table 1 together with other examples.

Example 2 Concrete guardrail for a hairpin curve on a road (
After cleaning at approximately 150 rn'), fill the recesses with cement filler to make them flat, draw a zebra pattern in yellow and black, and cover the entire surface with transparent vinyl chloride resin. Paint (Toakabepi Power 1
Apply seed sealer (manufactured by Toa Paint Co., Ltd.) and dry.
Apply the black part first, mask the yellow part with masking tape, and apply vinyl chloride resin enamel black (Toabinal #20 for architectural use, manufactured by Toa Pain II) to a dry film thickness of 50 to 60 tLm. Apply two coats with a roller and let dry, then mask off the black part to apply the yellow part, spray with acrylic resin emulsion layer paint yellow (Toaka Baby Power Type 1 Base Yellow, manufactured by Toa Paint) and apply with a roller. It was applied to a dry film thickness of 1200 μm, and glass beads (UB722
ML, manufactured by Union Glass Co., Ltd.) to fix it, 2
After leaving to dry for 4 hours, a fluororesin transparent paint (Toakabepi Type 1 Clear) was applied with a roller to a dry film thickness of 25 μm.

The various performances of the finished coating surface are shown in Table 1.

Example 3 Guardrail, red and white striped finish.

After preparing the groundwork for the galvanized guardrail, we drew a zebra pattern, painted the white part first, masked the red part, and painted it with ceramic-containing chloride rubber anti-corrosion paint!
4 (Toakabepi Type 2 base white, manufactured by Toa Paint Co., Ltd.) was rolled 2 to 3 times to a dry film thickness of 90 μm, and while still wet, glass beads (refractive index l, 921 particle size 105 ~1'410μm) was sprayed and fixed, the masking was removed and it was dried for 2 hours.The white part was first masked, and the red part was coated with a chlorinated rubber paint containing ceramic anti-corrosion paint with a dry film thickness of 90μm. I applied two coats of paint with a brush so that it looked like this, then sprayed the same glass beads as above to fix it while it was still wet, and after drying, I applied a fluororesin transparent paint (Toakabepi Type 2 Clear, manufactured by Toa Paint Co., Ltd.) to the entire surface. .

The various performances of the finished coating surface are shown in Table 1.

Comparative Example 3 Using the same method as Example 3, only the glass beads had a refractive index of 10.
00 particle size 105 to 840 Wm+7) Normal traffic paint was used.

The various performances of the finished coating surface are shown in Table 1.

Example 4 Galvanized ball finishing Galvanized pole for signage, diameter 20 cm, after surface treatment, ceramic anti-corrosion paint (Toakabepiki Class 2 White, Toa Paint Hosou) was applied three times to a dry film thickness of 90 μm. After coating, and while still wet, glass beads (refraction 41.92
．． Particle size 105 to 1410 IAm) is sprayed and fixed,
After drying for 5 hours, a fluororesin transparent paint (Toakabepi Riki Type 2 Clear, Toa Paint Hoso) was applied thereon.

The various performances of the finished coated surface are summarized in Table 1 along with other examples. Comparative Example 1 The same process as in Example 1 was carried out, but the top coat of fluororesin transparent paint was not applied.

Various performances of the finished coated surface are shown in Table 1 together with other examples.

Comparative Example 2 A urethane resin transparent paint (urethane clear for door tiles, Toa Paint Repair Co., Ltd.) was applied to the top coat using the same process as in Example 1.

Various performances of the finished coated surface are shown in Table 1 together with other examples.

Table 1 Performance of each finished surface Effect of the invention The highly retroreflective surface formed by the method of the invention has a sufficient color effect even in the daytime and can be recognized from a long distance, and has a warning effect especially in dark places and at night. Very noticeable and effective in preventing collisions. At the same time, since a transparent fluororesin paint is used as the top coat, it has excellent weather resistance, excellent stain resistance, and has features such as being resistant to stains and easy to clean.

Claims (1)

[Claims] 1. Applying colored paint of one or more colors to the surface to be coated so as to form a large sign representing figures or letters;
Glass beads with a curvature of 1.92 or more and a particle size of about 0.1 to 1.5 mm are densely applied to the undried paint film on that part or the entire surface, and then the fluororesin transparent paint is dried on top of it. Highly reflective wall finishing method at night.