JP2004188816A - Cleanable lightproofing covering material - Google Patents

Cleanable lightproofing covering material Download PDF

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Publication number
JP2004188816A
JP2004188816A JP2002360170A JP2002360170A JP2004188816A JP 2004188816 A JP2004188816 A JP 2004188816A JP 2002360170 A JP2002360170 A JP 2002360170A JP 2002360170 A JP2002360170 A JP 2002360170A JP 2004188816 A JP2004188816 A JP 2004188816A
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JP
Japan
Prior art keywords
covering material
pigment
light
shielding
coating material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002360170A
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Japanese (ja)
Inventor
Katsuo Miki
勝夫 三木
Toshikazu Murase
俊和 村瀬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIJO SOZO KK
Original Assignee
SHIJO SOZO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHIJO SOZO KK filed Critical SHIJO SOZO KK
Priority to JP2002360170A priority Critical patent/JP2004188816A/en
Publication of JP2004188816A publication Critical patent/JP2004188816A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleanable sunproofing covering material which eliminates the faults such as the easy washaway by a rainfall entailing the loss of expected efficacy, the increase in a room temperature exposed to a direct solar light and the generation of a harmful influence upon the growth of a creature under a direct solar light in summer, as are seen when a covering material with an applied aqueous lime dispersion is used. <P>SOLUTION: This lightproofing covering material is composed mainly of a pigment and a vehicle and the pigment has a sun radiation reflectance of 40% or higher as defined by JIS A5759. In addition, the covering material contains an organic pigment or an organic and inorganic pigment alone or mixed in a dispersed state. When the solar light is necessary in winter, it can be effectively utilized by cleaning/removing the lightproofing covering material applied to a transparent substrate with water or a cleaning agent. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明が属する技術分野】
本発明は、遮光性を有する洗浄可能な被覆材に関するものである。
【0002】
【従来の技術】
透明基材に遮光性を有する洗浄可能な被覆材を塗布する場合、一般に石灰を水に分散し塗布されていた。
【0003】
【発明が解決しようとする課題】
石灰を水で分散し塗布したものは、雨で流れ落ち、期待効果が直ぐに無くなり、太陽光を直接受け、室内温度上昇及び、夏場太陽光を直接受け生物の育成に弊害が出ている。
【0004】
本発明の目的は前記従来例の不都合を解消し、温度上昇を抑え、室内に侵入する熱量を大幅に低減して作業環境を改善すると同時に、特に夏場太陽光の直射を避け、生物の育成を妨げず、生産性の向上に貢献できる遮光性被覆材を提供することにある。
【0005】
【課題を解決するための手段】
本発明は前記目的を達成するため、透明基材の表面に遮光性被覆材を10μm〜200μmの膜厚で塗布した事を要旨としたものである。
【0006】
請求項1記載の本発明によれば、透明基材表面に日射反射率の高い顔料を分散した遮光性被覆材を10μm〜200μm塗布し、太陽光を遮光することで、夏場太陽光の直射を避け、生物の育成を妨げず、生産性の向上及び作業環境改善につながる。
【0007】
請求項2記載の本発明によれば、遮光性被覆材は、顔料とビヒクルとを主成分とし、顔料はJIS A5759に定義される日射反射率が40%以上で、有機系または有機系および無機系の顔料を単独又は複数混合分散してなる事を要旨としたものである。
【0008】
請求項3記載の本発明によれば、冬場太陽光が必要な場合は、透明基材に塗布された遮光性被覆材を、水もしくは洗浄剤等で洗浄除去し太陽光を有効に利用することが出来る。
【0009】
【発明の実施の形態】
以下、本発明の実施の形態を図面で詳細に説明する。図1は本発明の遮光性被覆材の実施形態を示す縦断側面である。図中1はガラスハウス又はビニルハウスである。
【0010】
本発明は、ガラスハウス又はビニルハウス1の表面に、遮光性被覆材2を塗布した。
【0011】
遮光性被覆材2の膜厚は30μm〜70μmである。
【0012】
遮光性被覆材2は、顔料とビヒクルとを主成分とし、顔料はJIS A5759に定義される日射反射率が40%以上で、有機系または有機系および無機系の太陽熱遮蔽顔料を単独又は複数を混合してなるものである。
【0013】
JIS A5759に定義される日射反射率の測定方法は、遮光性被覆材をJIS K5400で定義される隠蔽力試験方法で、完全隠蔽した試験板を作成し測定する。
【0014】
前記ビヒクルは、水性又は水溶性樹脂である。
【0015】
ビヒクルは、酢酸ビニル樹脂エマルション、アクリル樹脂エマルション、塗料、シリコン樹脂エマルション、フッ素樹脂エマルション、メチルセルローズの少なくとも一種以上とから適宜選択する、但し、水性又は水溶性樹脂であればこれに限るものではない。
【0016】
顔料は、JIS A5759に定義される日射反射率が40%以上で、有機系または有機系および無機系の太陽熱遮蔽顔料を分散し単独又は複数を混合してなるものである。
【0017】
有機系着色顔料としては、下記のものから選定する。
1:(黄色)SYMULER FAST YELLOW 4192 ヘ゛ンツイミタ゛ソ゛ロン
大日本インキ化学工業(株) 製
2:(赤色)FASTONGN SUPER RED 500RG キナクリト゛ン
大日本インキ化学工業(株) 製
3:(赤色)FASTONGN SUPER RED ATY シ゛アミノアンスラキノニル
大日本インキ化学工業(株) 製
4:(紫色)FASTONGN SUPER VIOLET RVS シ゛オキサシ゛ン
大日本インキ化学工業(株) 製
5:(赤紫色)FASTONGN SUPER MAGENTA R キナクリト゛ン
大日本インキ化学工業(株) 製
6:(青色)FASTONGN SUPER BLUE 6070S インタ゛ンスロン
大日本インキ化学工業(株) 製
7:(青色)FASTONGN BLUE RSK フタロシニアン α
大日本インキ化学工業(株) 製
8:(青色)FASTONGN BLUE 5380 フタロシニアン β
大日本インキ化学工業(株) 製
9:(緑色)FASTONGN GREEN MY ハロケ゛ン化フタロシニアン
大日本インキ化学工業(株) 製
10:(青色)HELIOGEN BLUE D7490
BASF社製
【0018】
無機系着色顔料としては、下記のものから選定する。
A:(黄色)イエロー 10401 CERDEC社製
(黄色)イエロー 10408 CERDEC社製
A:(赤色)ブラウン 10348 CERDEC社製
C:(緑色)グリーン 10405 CERDEC社製
D:(青色)ブルー 10336 CERDEC社製
E:(紫色)ブラウン 10364 CERDEC社製
F:(黒色)ブラウン 10363 CERDEC社製
G:(白色)タイペーク CR−97 石原産業 社製
(白色)TR−81 ハンツマンタイオキサイド社製
H:(白色)炭酸カルシウム 白石工業社製
有機系着色顔料、無機系着色顔料は日射反射率が目的に合っておれば、これらに限定するものではない。
【0019】
なお、顔料の粒径については、特に限定されるものではないが、作業性の点から30μm以下、特に20μm以下であることが望ましい。粗い粒子の顔料を使用すると、塗膜に細かい凸凹が生じて塗膜表面が汚染され易く、又、遮光性が劣る。
【0020】
さらに、以上のような顔料の合計使用量が塗料固形分中2〜70重量%の範囲内であることとする。該顔料使用量が合計2重量%未満の場合には遮光性に欠け、また、70重量%を超える場合には塗膜中の顔料量が多くなり過ぎて作業性が悪くなる事がある。この場合、ここにいう固形分とは、組成物の中で加熱しても揮発又は蒸発しない物質を意味し、一般には塗膜となるべき成分を指すものであって、具体的には顔料、ビヒクル中の樹脂分、その他の添加剤を指すものである。
【0021】
以上のように構成されるの遮光性被覆材2は、水で塗装に適した粘度に調整して使用する事が出来る。また、必要に応じて表面平滑剤、粘度調整剤、顔料沈降防止剤、防腐剤、等を用いる事が出来る。
【0022】
遮光性被覆材2の塗装は刷毛、ローラー、スプレーで被覆する。
【0023】
【実施例】
次に、本発明の遮光性被覆材の性能を確認するために行った試験について説明する。
<配合例1>
使用したの遮光性被覆材2配合例を示す。
[重量部]
炭酸カルシュウム(白石工業社製) 55
二酸化チタン(石原産業社製) 4
アクリルエマルション(大日本インキ化学社製) 3
水 37
沈殿防止剤 1
(合計100)
【0024】
塗膜の調整方法として、ガラスの表面に遮光性被覆材を膜厚50μmになるようスプレー塗装し、10時間25℃の恒温恒室にて自然乾燥作成した。
【0025】
<実験1>
実験方法は、標準品として石灰を水で分散し膜厚50μmに塗装した試験板と、〔0022〕配合例1の遮光性被覆材を塗装した試験板を、室内温度28℃の条件下にて、おのおの赤外線ランプを約20分間照射した。
【0026】
図2に石灰を水で分散し塗装した試験板と、〔0022〕配合例1の遮光性被覆材を塗装した試験板の分光反射性能の差を示す。また、表1に日射反射率と表面温度計測結果及び箱内温度計測結果を示す。
【表1】

Figure 2004188816
【0027】
表1からも知見できるように、実験に用いた遮光性被覆材で表面温度で約7℃、試験箱内温度で約2℃低下した、この事は分光反射率との関係を示しており、分光反射率に配慮して設計する必要がある。
【0028】
<実験2>
実験方法は、標準品として石灰を水で分散し膜厚50μmになるようガラス板にスプレーで塗装した試験板と、〔0022〕配合例1の遮光性被覆材を膜厚50μmになるようガラス板にスプレーで塗装した試験板とを、10時間25℃の恒温恒室にて自然乾燥作成した。
【0029】
〔0028〕の試験板をJIS K 5400の耐水性試験を表2に示す。
【表2】
Figure 2004188816
【0030】
表2からも知見できるように、標準品と〔0022〕配合例1の遮光性被覆材とでは水に溶け落ちる時間に差があることがわかる。すなわち、遮熱性被覆材は、雨により簡単に流れ落ちることがなく、夏場の塗布回数を大幅に減らすことが出来る。
【発明の効果】
【0031】
以上述べたように本発明の遮光性被覆材は、夏場太陽光の直射を避け、生物の育成を妨げず、生産性の向上及び作業環境改善し、冬場太陽光が必要な場合は、透明基材に塗布された遮光性被覆材を、水などで洗浄除去し太陽光を有効に利用することが出来る。
【図面の簡単な説明】
【図1】本発明の遮光性被覆材を透明基材に塗布した1実施形態を示す立面図である。
【図2】分光反射性能を示すグラフである。
【図3】遮光性を評価するための装置の1例を示す概略図である。
【符号の説明】
1…透明基材。
2…遮光性被覆材。
3…石灰。
4…試験箱。
5…温度センサー
6…白熱灯
7…電源
8…記録計[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a washable covering material having a light shielding property.
[0002]
[Prior art]
When a washable coating material having a light-shielding property is applied to a transparent substrate, lime is generally dispersed in water and applied.
[0003]
[Problems to be solved by the invention]
Lime dispersed and applied with water is washed down by rain, immediately loses the expected effect, directly receives sunlight, increases indoor temperature, and receives direct sunlight in summer, which is detrimental to the growth of living organisms.
[0004]
The object of the present invention is to eliminate the disadvantages of the conventional example, suppress the temperature rise, significantly reduce the amount of heat entering the room and improve the work environment, and at the same time, avoid direct sunlight in summer, especially for breeding organisms. An object of the present invention is to provide a light-shielding covering material that can contribute to an improvement in productivity without hindering.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a gist that a light-shielding coating material is applied to a surface of a transparent substrate in a thickness of 10 μm to 200 μm.
[0006]
According to the first aspect of the present invention, a light-shielding coating material in which a pigment having a high solar reflectance is dispersed is applied to the transparent substrate surface in an amount of 10 μm to 200 μm, and the sunlight is shielded, thereby allowing direct sunlight in summer. Avoid, not hinder the growth of organisms, lead to improved productivity and improved work environment.
[0007]
According to the present invention as set forth in claim 2, the light-shielding coating material comprises a pigment and a vehicle as main components, and the pigment has a solar reflectance defined by JIS A5759 of 40% or more, and is an organic or organic and inorganic. The invention is based on the idea that a single pigment or a mixture of a plurality of pigments is dispersed.
[0008]
According to the third aspect of the present invention, when sunlight in winter is required, the light-shielding coating material applied to the transparent substrate is washed and removed with water or a cleaning agent to effectively use the sunlight. Can be done.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view showing an embodiment of the light-shielding covering material of the present invention. In the figure, reference numeral 1 denotes a glass house or a vinyl house.
[0010]
In the present invention, a light-shielding coating material 2 is applied to the surface of a glass house or a vinyl house 1.
[0011]
The film thickness of the light-shielding covering material 2 is 30 μm to 70 μm.
[0012]
The light-shielding coating material 2 contains a pigment and a vehicle as main components, and the pigment has a solar reflectance defined by JIS A5759 of 40% or more, and an organic or organic and inorganic solar heat-shielding pigment is used alone or in combination. It is a mixture.
[0013]
In the method for measuring the solar reflectance defined in JIS A5759, a test plate in which a light-shielding coating material is completely concealed by a concealing power test method defined in JIS K5400 is prepared and measured.
[0014]
The vehicle is an aqueous or water-soluble resin.
[0015]
The vehicle is appropriately selected from at least one of a vinyl acetate resin emulsion, an acrylic resin emulsion, a paint, a silicone resin emulsion, a fluororesin emulsion, and methylcellulose, but is not limited to an aqueous or water-soluble resin. .
[0016]
The pigment has a solar reflectance defined by JIS A5759 of 40% or more, and is obtained by dispersing an organic or organic and inorganic solar heat-shielding pigment and mixing one or a plurality thereof.
[0017]
The organic coloring pigment is selected from the following.
1: (yellow) SYMULER FAST YELLOW 4192 manufactured by Penzimita Sodron Dainippon Ink and Chemicals Co., Ltd. 2: (red) FASTONGN SUPER RED 500RG Kinakuriton Dainippon Ink and Chemicals Co., Ltd. 3: (red) FASTONGN SUPER RED ATY diamino Anthraquinonil Dainippon Ink & Chemicals, Inc. 4: (purple) FASTONGN SUPER VIOLET RVS Shioxaxin Dainippon Ink & Chemicals, Inc. 5: (reddish purple) FASTONGN SUPER MAGENTA R Kinakliton Dainippon Ink & Chemicals, Inc. 6: (blue) FASTONGN SUPER BLUE 6070S Instronon Dainippon Ink and Chemicals, Inc. 7: (blue) FASTONGN BLUE RSK phthalocyanine α
8: (blue) FASTONGN BLUE 5380 phthalocyanine β manufactured by Dainippon Ink and Chemicals, Inc.
9: (Green) FASTONGN GREEN MY Haloken phthalocyanine manufactured by Dainippon Ink and Chemicals, Inc. 10: (Blue) HELIOGEN BLUE D7490 manufactured by Dainippon Ink and Chemicals, Inc.
BASF [0018]
The inorganic coloring pigment is selected from the following.
A: (Yellow) Yellow 10401 CERDEC (Yellow) Yellow 10408 CERDEC A: (Red) Brown 10348 CERDEC C: (Green) Green 10405 CERDEC D: (Blue) Blue 10336 CERDEC E: (Purple) Brown 10364 CERDEC F: (Black) Brown 10363 CERDEC G: (White) Taipe CR-97 Ishihara Sangyo (White) TR-81 Huntsman Taioxide H: (White) Calcium carbonate Shiroishi The organic color pigment and the inorganic color pigment manufactured by Kogyo Co., Ltd. are not limited to these as long as the solar reflectance meets the purpose.
[0019]
The particle size of the pigment is not particularly limited, but is preferably 30 μm or less, particularly preferably 20 μm or less from the viewpoint of workability. When a pigment having coarse particles is used, fine irregularities are generated in the coating film, so that the coating film surface is easily contaminated, and the light-shielding property is poor.
[0020]
Further, the total use amount of the above pigments is in the range of 2 to 70% by weight in the solid content of the paint. When the total amount of the pigments is less than 2% by weight, the light-shielding property is lacking. In this case, the solid content herein refers to a substance that does not volatilize or evaporate even when heated in the composition, and generally refers to a component to be a coating film, and specifically, a pigment, It refers to the resin content in the vehicle and other additives.
[0021]
The light-shielding covering material 2 configured as described above can be used after adjusting to a viscosity suitable for painting with water. If necessary, a surface smoothing agent, a viscosity modifier, a pigment sedimentation inhibitor, a preservative, and the like can be used.
[0022]
The light-shielding coating material 2 is coated with a brush, a roller, and a spray.
[0023]
【Example】
Next, a test performed to confirm the performance of the light-shielding covering material of the present invention will be described.
<Formulation Example 1>
An example of the composition of the light-shielding covering material 2 used is shown below.
[Weight part]
Calcium carbonate (Shiraishi Industry Co., Ltd.) 55
Titanium dioxide (Ishihara Sangyo) 4
Acrylic emulsion (manufactured by Dainippon Ink and Chemicals) 3
Water 37
Settling inhibitor 1
(Total 100)
[0024]
As a method of adjusting the coating film, a light-shielding coating material was spray-coated on the glass surface so as to have a thickness of 50 μm, and was naturally dried in a constant temperature and constant temperature room at 25 ° C. for 10 hours.
[0025]
<Experiment 1>
The test method was as follows: a test plate coated with lime dispersed in water and coated to a film thickness of 50 μm as a standard product, and a test plate coated with the light-shielding coating material of Formulation Example 1 under the conditions of a room temperature of 28 ° C. Each was irradiated with an infrared lamp for about 20 minutes.
[0026]
FIG. 2 shows the difference in spectral reflection performance between a test plate coated with lime dispersed in water and coated, and a test plate coated with the light-shielding coating material of Formulation Example 1. Table 1 shows the measurement results of the solar reflectance, the surface temperature, and the temperature inside the box.
[Table 1]
Figure 2004188816
[0027]
As can be seen from Table 1, the light-shielding coating material used in the experiment reduced the surface temperature by about 7 ° C. and the test box temperature by about 2 ° C. This indicates a relationship with the spectral reflectance. It is necessary to design in consideration of spectral reflectance.
[0028]
<Experiment 2>
The test method was as follows: a test plate in which lime was dispersed in water and spray-coated on a glass plate so as to have a thickness of 50 μm, and a glass plate with the light-shielding coating material of Formulation Example 1 having a thickness of 50 μm as a standard product. And a test plate coated by spraying were naturally dried in a constant temperature and constant temperature room at 25 ° C. for 10 hours.
[0029]
Table 2 shows the water resistance test according to JIS K 5400 for the test plate [0028].
[Table 2]
Figure 2004188816
[0030]
As can be seen from Table 2, it can be seen that there is a difference between the standard product and the light-shielding covering material of Formulation Example 1 in the time to dissolve in water. That is, the heat-shielding coating material does not easily flow down due to rain, and the number of applications in summer can be greatly reduced.
【The invention's effect】
[0031]
As described above, the light-shielding covering material of the present invention avoids direct sunlight in summer, does not hinder the breeding of living organisms, improves productivity and improves the working environment. The light-shielding coating material applied to the material can be washed and removed with water or the like, and sunlight can be used effectively.
[Brief description of the drawings]
FIG. 1 is an elevational view showing one embodiment in which a light-shielding coating material of the present invention is applied to a transparent substrate.
FIG. 2 is a graph showing spectral reflection performance.
FIG. 3 is a schematic view showing an example of an apparatus for evaluating light-shielding properties.
[Explanation of symbols]
1 ... Transparent substrate.
2. Light-shielding covering material.
3 ... lime.
4 ... Test box.
5 temperature sensor 6 incandescent lamp 7 power supply 8 recorder

Claims (3)

透明基材の表面に遮光性被覆材を10μm〜200μmの膜厚で塗布することを特徴とする遮光性被覆材。A light-shielding coating material, characterized in that a light-shielding coating material is applied to a surface of a transparent substrate in a thickness of 10 μm to 200 μm. 遮光性被覆材は、顔料とビヒクルとを主成分とし、顔料はJIS A 5759に定義される日射反射率が40%以上の有機系顔料、無機系顔料を分散してなる請求項1記載の遮光性被覆材。2. The light-shielding coating material according to claim 1, wherein the light-shielding coating material is mainly composed of a pigment and a vehicle, and the pigment is a dispersion of an organic pigment or an inorganic pigment having a solar reflectance defined by JIS A 5759 of 40% or more. Coating material. 遮光性被覆材は、水性で、必要に応じ洗浄除去出来ることを特徴とする請求項1、2記載の遮光性被覆材。3. The light-shielding covering material according to claim 1, wherein the light-shielding covering material is water-based and can be washed and removed as needed.
JP2002360170A 2002-12-12 2002-12-12 Cleanable lightproofing covering material Pending JP2004188816A (en)

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JP2002360170A JP2004188816A (en) 2002-12-12 2002-12-12 Cleanable lightproofing covering material

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