JP4525243B2 - Sheet for pavement - Google Patents

Description

  The present invention relates to a pavement sheet, in particular, asphalt, a pavement sheet for painting on a road surface in a sidewalk, a roadway, a bicycle road, etc., which is a road paved with concrete, or an interlocking block, and a makeup method.

  Further, the present invention relates to a pavement sheet having water permeability even when adhered or adhered to a water permeable pavement or a drainage pavement.

  Conventionally, when a traffic display, a center line, or a side line is drawn on a paved road such as a pavement or a road, it is drawn with a paint melted by heat (Patent Document 6).

  However, when a mark for informing a step between a sidewalk and a road is painted, there is a problem that it takes time because the machine is too large to make a small turn (Patent Documents 1 to 5, 7).

In addition, there was a traffic sign with a sheet printed with a pattern printed on the sidewalk, but it could be deformed when the summer road surface temperature increased and stressed by people.
Japanese Patent No. 3021814 JP-A-6-330625 JP-A-10-204823 Japanese Patent Laid-Open No. 11-124817 Publication No. 2000-515938 JP 10-317319 A JP 2001-207406 A “Difference between water-permeable pavement and drainage pavement”, [online], Environmental Engineering Co., Ltd., [10:02 am search on July 27, 2004], Internet <http: // www. kankyo-kogaku. co. jp / wall / moistbrick / chigai. html>

  This invention is made | formed in order to solve the said problem, and the place made into the subject is providing the sheet | seat for pavements which does not distort after construction also in the summer.

The present invention has been made to solve the above problems, and the invention according to claim 1 is a pavement sheet comprising at least a thermoplastic resin layer, a picture layer, and an adhesive layer , wherein the heat thermoplastic resin layer, Vicat softening temperature after curing Ri Do from 70 to 160 ° C. for the thermoplastic resin, the adhesive layer, said the pattern layer is provided on the opposite side of the thermoplastic resin layer, the thickness Is made of an adhesive having a Vicat softening temperature of 70 to 160 ° C. after curing, and the pattern layer includes at least anthraquinone, isoindolinone, bromanthsanthrone, diketopyrrolopyrrole, carbon black, A pavement sheet comprising a pigment selected from at least one of phthalocyanine blue .

The invention of claim 2 wherein is a pavement sheet of claim 1 Symbol mounting, characterized in further providing the transparent thermoplastic resin layer on the surface of the pattern layer.

The invention of claim 3, wherein the thickness of the transparent thermoplastic surface protective layer provided on the surface of the resin layer, surface protective layer, claim, characterized in that a 1 to 10 g / m ² 2 It is the sheet | seat for pavements of description.

According to the first aspect of the present invention, the Vicat softening temperature (JIS) of the thermoplastic resin layer is obtained.
K7206-1999) is that it is 70 to 160 ° C., even in the heated and molten state to adhere or stick to the road surface, even if the temperature increase of the pavement under the scorching sun in summer, the sheet is not distorted, have Na every peeling it has become possible to the seat for the road shop.

According to the invention of the first aspect of the present invention, the Vicat softening temperature (JIS K7206-1999) after curing of the adhesive is 70 to 160 ° C. even if the temperature rise of the scorching sun of the pavement in the summer, the sheet is not distorted, it has become possible to I舗 canal sheet such place is also peeling.

According to the invention of claim 1 , the pigment of the picture layer is at least one selected from anthraquinone, isoindolinone, bromoanthanthrone, diketopyrrolopyrrole, carbon black, and phthalocyanine blue. Thus, a pavement sheet having good weather resistance can be obtained.

According to the invention described in claim 2 , the provision of the transparent thermoplastic resin layer has the effect of increasing the wear resistance and weather resistance.

Further, according to the invention described in claim 3 , by providing a surface protective layer on the surface of the transparent thermoplastic resin layer, there is an effect that workability is increased.

  Hereinafter, the pavement sheet of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a cross-sectional structure of an embodiment of a pavement sheet according to the present invention. The pavement is below, and the adhesive layer 1, the thermoplastic resin layer 2, the pattern layer 3, the adhesive layer 4, the transparent thermoplastic resin layer 5, and the surface protective layer 6 are arranged from the pavement surface.

  The pavement in the present invention refers to a paved road, and includes asphalt pavement, concrete pavement, road, and the like.

  As the adhesive of the adhesive layer 1 in the present invention, a two-component cured urethane resin, a two-component epoxy resin, a moisture curable urethane resin (PUR), a one-component polyolefin resin, or the like can be used, and in particular, thermoplastic. From this point, EVA (ethylene-vinyl acetate resin copolymer) and the like are preferable. A thickness of 5 to 120 μm is suitable in terms of uneven tracking and adhesiveness.

  Moreover, you may use an adhesive for the adhesive bond layer 1 in this invention. As the pressure-sensitive adhesive, acrylic pressure-sensitive adhesives are the most common, but styrene-butadiene rubber-based pressure-sensitive adhesives, chloroprene rubber-based pressure-sensitive adhesives, olefin rubber-based pressure-sensitive adhesives, urethane-based pressure-sensitive adhesives, silicone-based pressure-sensitive adhesives, etc. Can be used. An acrylic adhesive is superior in terms of weather resistance. An ultraviolet absorber, a light stabilizer, an antioxidant or the like may be added to the adhesive layer. The thickness of the adhesive layer is generally about 5 to 50 μm. However, adhesives are not suitable for road surfaces where the temperature rises in summer, but they can be used in shades, station platforms, public facilities, etc. where the temperature does not rise.

  As the thermoplastic resin used for the thermoplastic resin layer 2 in the present invention, EVA (ethylene-vinyl acetate copolymer resin), acrylic resin, EVOH (ethylene-vinyl alcohol) resin, polymethyl methacrylate resin, A-PET ( (Amorphous crystalline polyester resin), ionomer resin (a thermoplastic resin in which the carboxyl group of a copolymer of ethylene and methacrylic acid is partially neutralized with a metal such as sodium or zinc), a random or homopolypropylene resin, You may add a hindered phenolic antioxidant, a ultraviolet absorber, a hindered amine light stabilizer, etc. to each resin, such as a polyethylene resin. In the case of coloring, at least one pigment of iron oxide, carbon black, titanium oxide, phthalocyanine blue, and isoindolinone may be added as a pigment.

  As the ink used for the pattern layer 3 in the present invention, if the pigment is composed of at least one of anthraquinone, isoindolinone, bromoanthanthrone, diketopyrrolopyrrole, carbon black, phthalocyanine blue, the weather resistance It becomes a high quality thing. As the binder resin, acrylic resin, vinyl chloride resin, butyral resin, etc. can be used.

When the adhesive layer 4 is used, a thermoplastic resin such as an acrylic resin-polyester resin-vinyl acetate resin system, a two-component urethane resin system, an acrylic resin system, or the like can be used depending on the use situation. The coating amount is preferably about ² to 20 g / m ² after drying.

  The transparent thermoplastic resin layer 5 needs to be transparent, but may be selected according to the application such as coloring or translucency. EVA (ethylene-vinyl acetate copolymer resin), acrylic resin, EVOH (ethylene-vinyl alcohol) resin, polyvinyl alcohol resin, polymethyl methacrylate resin, A-PET (amorphous crystalline polyester resin), ionomer resin (A thermoplastic resin in which the carboxyl group of a copolymer of ethylene and methacrylic acid is partially neutralized with a metal such as sodium or zinc), random or homopolypropylene resin, polyethylene resin, and the like. As the polyolefin, polyethylene, polypropylene, or a modified resin thereof is common. However, considering the surface hardness and heat resistance, a polypropylene resin is preferable. There are two types of polypropylene resins, random copolymerization and homo-type, and any of them may be used depending on the application. In a homo system, a flexible film can be formed if the amorphous type has a high atactic component.

  In addition, since the weather resistance prescription is added to the resin, a weather resistance prescription agent such as a light stabilizer or a UV absorber (benzotriazole type, triazine type, benzophenone type, etc.) should be appropriately added according to the resin. Can do. The added part may be added according to the desired weather resistance, but is 0.1 to 10%, preferably 1 to 5%, based on the resin solid content.

As the surface protective layer 6, a type in which isocyanate is added to acrylic polyol and cured, a type in which acrylic polyol is modified with silicone and cured by adding isocyanate, imide acrylate resin and epoxy acrylate resin in the case of ionizing radiation curable resin , Urethane acrylate resin and other modified resins. In the case of an ultraviolet curable resin, an initiator is appropriately selected. High versatility such as coating and storage. Appropriate thickness is 1-10 g / m ² .

  To the resin, a weather resistance prescription agent such as a UV absorber (benzotriazole type, triazine type, benzophenone type, etc.) is added in order to perform a weather resistance prescription. The added part may be added according to the desired weather resistance, but is 0.1% to 50%, preferably 1% to 30%, based on the resin solid content.

  As the pattern layer 3, an acrylic resin and vinyl chloride resin are selected as the binder resin, and a pigment made of one or more of anthraquinone, isoindolinone, bromanthsanthrone, diketopyrrolopyrrole, carbon black, and phthalocyanine blue is selected as the pigment. These inks were printed on a granite pattern on a base film obtained by extrusion lamination of 20 μm polyethylene resin and 80 μm vinyl chloride resin to prepare a transfer sheet.

  As this and the thermoplastic resin layer 2, an EVA (ethylene-vinyl acetate copolymer resin) film (“X-1430” manufactured by Kurabo Corporation) having a thickness of 50 μm was used, and these were used in a pattern layer using a 160 ° C. rubber roll. 3 was thermally transferred.

  Next, asphalt mixture as adherend was densely packed with asphalt mixture 50 times to prepare an asphalt plate having a thickness of 50 mm, length of 600 mm and width of 300 mm. The composition is: No. 6 crushed stone: 37.0%, No. 7 crushed stone: 20.0%, Crushed sand: 16.0%, Screening: 16.0%, Fine sand: 8.0%, Stone powder: 3.0%, Straight asphalt 60-80 (Penetration 75 1/10 mm (25 ° C.) (Middle East production: Showa Shell Sekiyu KK): 5.7% asphalt temperature 151-157 ° C., aggregate heating temperature It produced at 175 degreeC.

  Next, a gas torch sword gas 206 auto, gas cartridge CT-200 (commercial Japan Co., Ltd. (maximum 5460 kJ / h (1300 kcal / h)) is applied to the asphalt plate at a distance of about 300 mm, and the surface of the asphalt plate is reduced to about The base material side of the pavement sheet produced by transferring to 160 ° C. was opposed to the asphalt plate, and the pavement sheet was fixed to the asphalt plate.

  A hot melt adhesive made of moisture-curing urethane resin made of polyacetal resin (Hitachi Chemical Polymer Co., Ltd.) is used as the adhesive layer 1 on the surface opposite to the pattern layer of the thermoplastic resin layer of the pavement sheet described in Example 1. ) Manufactured: “4832”) was applied to the asphalt plate in the same manner as in Example 1 except that 30 μm was applied.

As a transparent thermoplastic resin layer on the pattern layer of the pavement sheet described in Example 2, 100 parts by weight of methyl methacrylate-based transparent paint “BK-1040”, a curing agent “BCH-50” (manufactured by Mishu Kosan Co., Ltd.) The pavement sheet was fixed to the asphalt plate in the same manner as in Example 1 except that 1.5 part of the mixture was mixed and 300 g / m ² (WET) was applied.

This was carried out except that the surface of the transparent thermoplastic resin layer of Example 3 was coated with 10 g / m ² (dry) of a two-component urethane resin (Dainippon Paint Co., Ltd .: “V Top TP”) as a surface protective layer. In the same manner as in Example 1, the pavement sheet was fixed to the asphalt board.
<Performance comparison>
About the pavement sheet | seat of Examples 1-4 produced as mentioned above, after implementing the following accelerated weather resistance tests, it evaluated by visual observation.
<Accelerated weather resistance test>
Metal halide lamp type testing machine JTM G 01 2000 Japan Testing Machine Industry Association Standard JTM STANDARD Metalhalide Lamp type apparator Daipura Metal Weather (KU-R5CI-A) (manufactured by Daipura Wintes Co., Ltd.) Light source lamp: MW-60W, filter: K -1 (irradiation range 295 nm to 780 nm) Conditions: Illuminance 65 ± 3 mW / cm ² (measurement range 330 nm to 390 nm) Light (irradiation) (53 ° C., 50% RH) 20.00 hours, Dew (dark condensation) (30 ° C. , 98% RH) 4.00 hours, Rest (30 ° C, 98% RH) finished in 0.01 hours. Shower is 30 cycles before and after Dew for one cycle of 24.01 hours or more. Steam water control panel (Kurita Industry Co., Ltd.) ) And then used as pure water with a conductivity of 2 μS / cm or less in the following apparatus. The pure water production machine is a residual chlorine remover manufactured by Kurita Kogyo Co., Ltd .: Carbonner CF70F, water softener: KS-MA-54BF, reverse osmosis membrane (RO membrane: Reverse Osmosis membrane) device: Mac Ace KN-600 type, continuous deionization device: Pure Ace PA-480X type Color difference: CR-200 (manufactured by Minolta Co., Ltd.) Measurement. The results are shown in Table 1.

  The pavement sheet of the present invention can be used as a painting for signage or guidance on pavements, specifically asphalt, sidewalks that are paved with concrete, roadways, bicycle paths, and interlocking blocks. .

It is explanatory drawing which shows the structure of the cross section of one Example of the sheet | seat for pavements of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Adhesive layer 2 ... Thermoplastic resin layer 3 ... Picture layer 4 ... Adhesive layer 5 ... Transparent thermoplastic resin layer 6 ... Surface protection layer 10 ... Sheet for pavement

Claims (3)

At least, a pavement sheet comprising a thermoplastic resin layer and the picture layer and the adhesive layer, the thermoplastic resin layer, Vicat softening temperature after curing Ri Do from 70 to 160 ° C. for the thermoplastic resin, wherein The adhesive layer is provided on the surface of the thermoplastic resin layer opposite to the pattern layer, and is made of an adhesive having a thickness of 5 to 120 μm and a Vicat softening temperature after curing of 70 to 160 ° C. The pavement sheet is characterized in that the pattern layer comprises at least one pigment selected from anthraquinone, isoindolinone, bromanthsanthrone, diketopyrrolopyrrole, carbon black, and phthalocyanine blue . Pavement sheet of claim 1 Symbol mounting, characterized in that further provided with a transparent thermoplastic resin layer on the surface of the pattern layer. A surface protective layer provided on the surface of the transparent thermoplastic resin layer, the thickness of the surface protective layer, pavement sheet of claim 2, wherein it is 1 to 10 g / m ^2.