JPS60130660A - Melt type, non-skid marking material - Google Patents

Abstract

PURPOSE:To provide the titled marking material capable of improving a non- skid effect on a rod trafic sign and a visual confirmation effect, containing a fired hard aggregate obtd. by mixing silicon oxide or aluminum oxide with a pigment and firing the mixture. CONSTITUTION:The titled marking material contains a fired hard aggregate obtd. by adding a pigment having the desired color to clay mainly composed of silicon oxide and/or aluminum oxide and firing the mixture at 1,300-1,450 deg.C. Pref. the fired aggregate having a particle size of 0.3-2mm. is used. When the particle size is too large, the surface of a coating film is poorly finished at the time of the application of the marking material, while when the particle size is too small, non-skid effect is poor. Examples of the clay are kaolin, bentonite, Gairome clay, Kibushi clay, etc. As the silicon oxide, siliceous sand may be used.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a melt-type anti-slip marking material that improves the visibility of road markings as well as the anti-slip properties of road markings.

Conventionally, parks, tennis courts, floors, parking lots, bus lanes,
BACKGROUND ART To prevent slips on bicycle paths and the like, a method has been adopted in which silica sand or the like is mixed or sprinkled with a paint or compound based on epoxy resin, urethane resin, polyester resin, or asphalt.

However, in the case of the above method, there are problems in terms of hardening properties, workability, etc., and there is a desire for materials and construction methods that are better in quick drying and workability. In addition, the hue of the silica sand to be mixed or sprayed is milky white, which is different from the color of the paint used each time (e.g. green, brown, yellow, blue, etc.), so when mixed or sprayed, the color of the paint looks whitish. This also has the disadvantage of reducing visibility. Furthermore, as the 9-year period progresses, the mixed silica sand protrudes to the surface, resulting in a decrease in visual recognition effect.

On the other hand, hot-melt road surface paints are mainly used for road markings such as center lines, outside lines, crosswalk characters, and symbols due to their quick-drying properties and durability.

However, recently, especially regarding the signs installed on school routes,
In order to prevent accidents caused by slipping during rainy weather, there is an increasing demand for anti-slip materials.

Accordingly, one object of the present invention is to provide an anti-slip marking material that improves the anti-slip and visibility effects of road markings.

That is, the present invention relates to a melt-type anti-slip marking material containing baked hard aggregate made by mixing and baking silicon oxide, aluminum oxide, or clay containing at least one of these as a main component and pigment.

The above-mentioned fired hard aggregate used in the present invention is prepared by adding a pigment of a desired color to clay mainly composed of silicon oxide, aluminum oxide, or at least one of these.
It can be obtained by firing at 0 to 1450°C. The fired hard aggregate preferably has a particle size in the range of 0.3 to 2 mm.

Particularly preferred is one in the range of 0.5 to 1.5 cm. If the particle size is too large, the finish of the coating surface tends to be poor when the marking material is applied, and if the particle size is too small, the anti-slip effect tends to be reduced.

Moreover, it is preferable that the above-mentioned fired hard aggregate has a Mohs hardness of 7 or more. If the hardness is too low, the anti-slip effect tends to decrease as time passes after the marking material is installed.

Clays containing at least one of silicon oxide and aluminum oxide as a main component, which are raw materials for the above-mentioned fired hard aggregate, include kaolin, bentonite, gyrome clay, and the like. Further, oyster sand may be used as the silicon oxide. Furthermore, any pigment that is stable at the firing temperature can be used as the pigment, and is appropriately selected and used in consideration of the marking material and the hue of the marking. Examples of pigments include titanium white yellow lead (including heat-resistant yellow lead), 7 tarcyani/blue, phthalocyanine green, and Bengara. Although the amount of pigment to be used cannot be determined unconditionally, it is preferable to use 2 to toins of pigment for clay containing silicon oxide, aluminum oxide, or at least one of these as a main component.

In the present invention, the calcined hard aggregate is used in combination with the components of a melt-type road marking material. Such components include caking resins, fiJ plastics, pigments, filler 1 reflective materials, and the like. Caking resins include 1 petroleum resin and maleated rosin ester (maleic acid resin).

Some contain coumaron-indene resins, terpene resins, etc. singly or in combination, ET plastics include vegetable oil-modified alkyd resins, vegetable oils, mineral oils, epoxidized oils, liquid synthetic rubbers, etc., and pigments include the above-mentioned. There is something like that. Also, as a filler.

Calcium carbonate, Merck, silica sand, etc. are used, and reflective materials include glass peas, etc. These components and hard aggregates are preferably blended as follows:
0 parts by weight, 15 to 22 parts by weight of plasticizer, 0 to 40 parts by weight of pigment (particularly preferably 30 to 40 parts by weight), 0 to 4 parts by weight of filler.
50 parts by weight (especially preferably 110-450 parts by weight) and 0-110 parts by weight (% preferably 100-450 parts by weight) of the reflective material
110 parts by weight). Other additives such as antisettling agents, ultraviolet absorbers, and melting agents may be added as necessary.

In the present invention, the fired hard aggregate is hard, and therefore can maintain an excellent anti-slip effect for a long period of time after the marking material according to the present invention is installed, and can be obtained in any color. 2. It is possible to use a marking material having the same hue as the marking material according to the present invention, and the visual recognition effect does not deteriorate due to the combination, and road markings with excellent visual recognition effects can be constructed. Further, since the above-mentioned fired hard aggregate does not impair the drying properties of the marking material, the work efficiency is also good.

Next, the present invention will be explained in detail based on examples.

The present invention is not limited thereto, and all "parts" in the description in one example mean "parts by weight."

Example 1 Heat-melting road marking material Petroleum resin (Finton C-2008, 15 parts Nippon Zeon ■trade name) B, Plasticizer (Phthalkyto 280-100. 3 parts Hitachi Chemical ■trade name) C, Phthalonanine Green (manufactured by Sanyo 5 parts pigment) D1 heavy calcium carbonate (manufactured by Takehara Chemical) 17 parts E,
Green calcined hard aggregate (Kaolin 100 60 parts by weight and 7 parts by weight)
After mixing 5 parts by weight of talocyanine green, baking at 1400° C. for 3 hours, and crushing into 9 particles with a particle size of 0.5 to 1 WIEi) After mixing the components of A to H above with a mixer.

It was packed in a polyethylene bag to obtain a melt-type color anti-slip marking material. Next, it was put into an on-vehicle Ni-Goo, heated and melted, and then applied to the road surface. Paint at 170-190℃
．． The film thickness was 5 to 2.0 mm. The coating film was measured for its slip resistance, adhesion, abrasion resistance and oral visibility. The results are shown in Table 1.

Example 2 A melt-type color anti-slip marking material having the same composition as in Example 1 was manufactured in the same manner as in Example 1, except that the amount of calcium carbonate was 47 parts and the amount of calcined hard aggregate was 30 parts. Coatings were prepared and tested. The results are shown in Table 1.

Example 3 A melt-type color anti-slip marking material having the same composition as in Example 1 was manufactured in the same manner as in Example 1, except that the amount of calcium carbonate was 67 parts and the amount of calcined hard aggregate was 10 parts. Coatings were prepared and tested. The results are shown in Table 1.

Comparative Example 1 9 Petroleum resin (Finton C-2008, '15 parts Nippon Zeon ■trade name) B, 0J plasticizer (7 parts Talkyd 280-100. 3 parts Hitachi Chemical ■trade name) C, Phthalocyanino Green (Yamaba 5 D0 heavy calcium carbonate (manufactured by Takehara Kagaku ■) 77 parts The above components were mixed and applied to a road surface in the same manner as in Example 1 to form a coating film, which was then tested. The results are shown in Table 1. The test methods for the properties shown in Table 1 are as follows.

Slip resistance value: Based on a British portable skid resistance tester (the lower the value, the easier it is to slip) Adhesion 5.
An 8II square attachment was pasted with adhesive and strengthened using a Kenken-style peeling machine.

Abrasion resistance: JIS K 5665 Visibility after 6 months: Symbols have the following meanings.

◎ is clearly visible as green.

○ is clearly visible in green.

△ looks green, but it is whitish.

× looks green, but it is quite white.

As is clear from the trial results shown in Table 1.

The melt-type anti-slip marking material according to the present invention can provide road markings with outstanding anti-slip and visual effects not only at the initial stage but also after a long period of time.

Claims (1)

[Claims] 1. A melt-type anti-slip marking material containing baked hard aggregate made by mixing and baking silicon oxide, aluminum oxide, or clay whose main component is at least one of these and a pigment.