JPH0115382B2 - - Google Patents
Info
- Publication number
- JPH0115382B2 JPH0115382B2 JP10889380A JP10889380A JPH0115382B2 JP H0115382 B2 JPH0115382 B2 JP H0115382B2 JP 10889380 A JP10889380 A JP 10889380A JP 10889380 A JP10889380 A JP 10889380A JP H0115382 B2 JPH0115382 B2 JP H0115382B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- wood
- weather resistance
- thin aluminum
- aluminum film
- 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.)
- Expired
Links
- 239000002023 wood Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 239000003973 paint Substances 0.000 description 16
- 229920005749 polyurethane resin Polymers 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 240000002871 Tectona grandis Species 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- CSUUDNFYSFENAE-UHFFFAOYSA-N (2-methoxyphenyl)-phenylmethanone Chemical compound COC1=CC=CC=C1C(=O)C1=CC=CC=C1 CSUUDNFYSFENAE-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- WXNRYSGJLQFHBR-UHFFFAOYSA-N bis(2,4-dihydroxyphenyl)methanone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=C(O)C=C1O WXNRYSGJLQFHBR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
この発明は、耐候性の改善された塗装木材に関
し、透明塗膜の中間に極薄アルミニウム膜を介在
せしめたことにより耐候性の改善された塗装木材
を得ることがでるようにしたものである。[Detailed description of the invention] The present invention relates to coated wood with improved weather resistance, and it is possible to obtain coated wood with improved weather resistance by interposing an extremely thin aluminum film between a transparent coating film. This is how it was done.
従来から、透明塗膜の耐候性を改善するために
塗料ビヒクルの樹脂成分に耐候性の良い樹脂、例
えばアクリル樹脂、不飽和ポリエステル樹脂、ポ
リウレタン樹脂などを用いたり、塗料中に、例え
ば２−（2′−ヒドロオキシ−５−メチルフエニル）
−ベンゾトリアゾール、２−ヒドロオキシ−４−
メトキシベンゾフエノン、２、2′、４、4′−テト
ラヒドロオキシベンゾフエノンなどの紫外線吸収
剤を混入したものを塗布したりしていたが、前者
においては製造コストが上昇し、用途によつては
十分な耐候性が得られないなどの欠点があり、後
者においては耐候性の向上が不十分であつたり、
塗膜の透明性が低下するなどの欠点があり、特に
木材に対する付着性がよいことから木材塗装に多
用されているポリウレタン樹脂塗料、不飽和ポリ
エステル樹脂塗料では２成分系の反応性塗料であ
るため、上記紫外線吸収剤が反応に関与して、得
られる塗膜の耐候性が向上しなかつたり、塗膜の
物性が低下したり、透明性が悪くなるなどの問題
があつた。 Conventionally, in order to improve the weather resistance of transparent coatings, resins with good weather resistance, such as acrylic resins, unsaturated polyester resins, and polyurethane resins, have been used in the resin component of paint vehicles, and 2-( 2'-hydroxy-5-methylphenyl)
-benzotriazole, 2-hydroxy-4-
Previously, UV absorbers such as methoxybenzophenone and 2,2',4,4'-tetrahydroxybenzophenone were mixed into the coating, but the former increased production costs and depended on the application. In the latter case, there are disadvantages such as insufficient weather resistance, and in the latter case, the improvement in weather resistance is insufficient,
Polyurethane resin paints and unsaturated polyester resin paints, which are often used for wood coating because of their good adhesion to wood, have disadvantages such as reduced transparency of the paint film, and are reactive two-component paints. However, the UV absorbers involved in the reaction caused problems such as not improving the weather resistance of the resulting coating film, deteriorating the physical properties of the coating film, and worsening transparency.
この発明は上記事情に鑑がみてなされたもの
で、その目的とするところは耐候性が十分に改善
されて、塗膜の透明性の低下がなく、塗膜特性の
悪化がない耐候性塗装木材を提供することを目的
とし、木材の透明塗膜の中間に極薄のアルミニウ
ム膜を介在せしめて、塗膜の耐候性を低下させる
近赤外紫外線を反射させることを特徴とするもの
である。 This invention was made in view of the above circumstances, and its purpose is to provide weather-resistant coated wood with sufficiently improved weather resistance, no reduction in the transparency of the coating film, and no deterioration of the coating properties. This method is characterized by interposing an extremely thin aluminum film between a transparent paint film on wood to reflect near-infrared ultraviolet rays that reduce the weather resistance of the paint film.
以下、この発明を図面を参照して詳しく説明す
る。第１図はこの発明で得られる耐候性塗装木材
の一例の構造を示すもので、図中符号１を付した
ものは基材となる木材で合板、ムク材集成材など
の一般の木質材料を研摩、目止め、ウオツシユコ
ーテイングなどの下地調整したものである。 Hereinafter, the present invention will be explained in detail with reference to the drawings. Figure 1 shows the structure of an example of weather-resistant coated wood obtained by this invention, and the reference numeral 1 in the figure is the base material, which is made of general wood materials such as plywood and laminated solid wood. The surface has been prepared by polishing, sealing, and wash coating.
この木材１の表面にはポリウレタン樹脂、不飽
和ポリエステル樹脂塗料などの任意に着色された
塗料をロールコーター、スプレー、ハケ塗りなど
の手段などにより厚さ300〜500μｍに均一に塗布
して下塗り塗膜２が形成される。 The surface of this wood 1 is coated with an arbitrarily colored paint such as polyurethane resin or unsaturated polyester resin paint to a thickness of 300 to 500 μm using a roll coater, spray, brush, etc. to form an undercoat. 2 is formed.
ついで、この下塗り塗膜２の表面に、真空蒸着
法、スパツタリング法、CVD法（ケミカル・ブ
エイバアー・デイポジシヨン法）などにより極薄
アルミニウム膜３が形成される。アルミニウム膜
３の厚みは0.1〜10μｍ、好ましくは0.2〜0.5μｍ
で、0.1μｍ未満であれば耐候性向上の効果がな
く、10μｍを越えると塗膜の透明性が低下に好ま
しくない。この極薄アルミニウム膜３により入射
する光線のうち、塗膜の耐候性を低下させる紫外
線の大部分が反射され、耐候性が著るしく向上す
る。 Next, an ultra-thin aluminum film 3 is formed on the surface of this undercoat film 2 by a vacuum evaporation method, a sputtering method, a CVD method (chemical vapor deposition method), or the like. The thickness of the aluminum film 3 is 0.1 to 10 μm, preferably 0.2 to 0.5 μm.
If it is less than 0.1 μm, there is no effect of improving weather resistance, and if it exceeds 10 μm, the transparency of the coating film may deteriorate. This ultra-thin aluminum film 3 reflects most of the ultraviolet rays that degrade the weather resistance of the coating film, thereby significantly improving the weather resistance.
ついで、極薄アルミニウム膜３の上に、この極
薄アルミニウム膜３を保護するための下塗り塗膜
４が形成される。この下塗り塗膜４は透明のポリ
ウレタン樹脂、ポリエステル樹脂塗料などをスプ
レーロールコーター、ハケ塗りなどの方法によつ
て厚み50〜100μｍに塗布してなるもので、極薄
アルミニウム膜３の酸化劣化、摩耗などを防ぐ役
割のものである。なお、下塗り塗膜２と上塗り塗
膜４は同種でも異種でもよい。また場合によつて
は、下塗り塗膜２に１、３、５−Tris（４−tert
−butyl−３−hydroxy−２、６−
dimethylbengyl）−１、３、５−triagine−２、
４、６−（1H、3H、5H）−trione等の酸化防止剤
を含有させて酸化防止性を付与させることもでき
る。また、以上の説明は木材塗膜について行つた
が、これに限らず、耐候性の要求される種々の塗
装にも適用しうる。 Next, an undercoat film 4 for protecting the extremely thin aluminum film 3 is formed on the extremely thin aluminum film 3. This undercoat film 4 is made by applying transparent polyurethane resin, polyester resin paint, etc. to a thickness of 50 to 100 μm using a spray roll coater, brush coating, etc., and prevents oxidation deterioration and abrasion of the ultra-thin aluminum film 3. The role is to prevent such things. Note that the undercoat film 2 and the top coat film 4 may be of the same type or different types. In some cases, 1, 3, 5-Tris (4-tert
-butyl-3-hydroxy-2,6-
dimethylbengyl)-1,3,5-triagine-2,
An antioxidant such as 4,6-(1H,3H,5H)-trione may be included to impart antioxidant properties. Furthermore, although the above explanation has been made regarding wood coatings, the present invention is not limited to this, and can be applied to various coatings that require weather resistance.
以上のように構成されたこの発明の耐候性塗装
木材においては、塗膜の耐候性を低下せしめる紫
外線の大部分を極薄アルミニウム膜３が反射して
塗膜外に放射するので、従来の紫外線吸収剤をビ
ヒクル中に含む塗膜などに比べて格段に耐候性が
向上するとともに可視光線は極薄アルミニウム膜
３を透過するので透明性を保持するものである。 In the weather-resistant coated wood of the present invention constructed as described above, the ultra-thin aluminum film 3 reflects most of the ultraviolet rays that reduce the weather resistance of the coating film and radiates it out of the coating film, so that it can be used as The weather resistance is significantly improved compared to a coating film containing an absorbent in the vehicle, and since visible light passes through the ultra-thin aluminum film 3, transparency is maintained.
以下、実施例に基づいてこの発明を具体的に説
明する。 Hereinafter, this invention will be specifically explained based on Examples.
実施例
チークのムク板に通常の下地調整を行つたのち
ポリウレタン樹脂塗料を厚み400μｍに塗布し、
下塗り塗膜を形成した。ついで真空蒸着法により
厚み0.3μｍの極薄アルミニウム膜を形成し、更
に、この上に透明のポリウレタン樹脂塗料を厚み
80μｍに塗布し、上塗り塗膜とした。このように
して得られた塗装チーク板をサンシヤインウエザ
ロメータにて耐候性試験を行つた。促進耐候試験
後の塗装チーク板について色差（△Ｅ）を測定し
た。その結果を第２図に示す。第２図中、Ｉ線は
この実施例の塗装木材、線は極薄アルミニウム
膜を有しない塗装木材のそれぞれ色差（△Ｅ）の
照射時間に対する変化を示すものである。Example: After performing normal ground preparation on a teak board, polyurethane resin paint was applied to a thickness of 400 μm.
An undercoat film was formed. Next, an ultra-thin aluminum film with a thickness of 0.3 μm is formed using a vacuum evaporation method, and a transparent polyurethane resin paint is applied on top of this to a thickness of 0.3 μm.
It was applied to a thickness of 80 μm to form a topcoat film. The thus obtained painted teak board was subjected to a weather resistance test using a sunshine weatherometer. The color difference (ΔE) of the painted teak board after the accelerated weathering test was measured. The results are shown in FIG. In FIG. 2, line I shows the change in color difference (ΔE) with respect to irradiation time for the painted wood of this example, and the line shows the change in color difference (ΔE) for the painted wood without the ultra-thin aluminum film.
以上説明したように、この発明の耐候性塗装木
材は、木材の塗膜の中間に極薄のアルミニウム膜
を介在せしめたものであるので、極薄アルミニウ
ム膜が紫外線を反射し、可視光線を透過すること
により耐候性が向上し、かつ透明性が保持され
る。また、極薄アルミニウム膜が上塗り塗膜で保
護されているので耐候性が長期間持続する。更
に、従来の塗料ビヒクルに紫外線吸収剤を添加し
たものにみられた塗膜物性の低下、塗料の性状の
変化、塗膜の透明性の悪化などの欠点がなく、木
材のみならず他の基材にも応用できる非常に有用
なものである。 As explained above, the weather-resistant coated wood of this invention has an ultra-thin aluminum film interposed between the wood coating, so the ultra-thin aluminum film reflects ultraviolet rays and transmits visible light. This improves weather resistance and maintains transparency. Additionally, since the ultra-thin aluminum film is protected by a top coat, its weather resistance lasts for a long time. Furthermore, there are no disadvantages such as deterioration of physical properties of the paint film, changes in the properties of the paint, or deterioration of the transparency of the paint film that were seen with conventional paint vehicles with UV absorbers added, and it is suitable for use with not only wood but also other base materials. It is extremely useful and can also be applied to materials.
第１図はこの発明で得られる耐候性塗装木材の
一例の構造を示すため一部を切欠し斜視した説明
図、第２図はこの発明の耐候性塗装木材の促進耐
候試験の結果を示すグラフである。
１…木材、２…下塗り塗膜、３…極薄アルミニ
ウム膜、４…上塗り塗膜。
Fig. 1 is a partially cutaway, perspective view showing the structure of an example of the weather-resistant coated wood obtained by this invention, and Fig. 2 is a graph showing the results of an accelerated weathering test of the weather-resistant coated wood of this invention. It is. 1...Wood, 2...Undercoat film, 3...Ultra-thin aluminum film, 4...Top coat film.
Claims (1)
膜を介在せしめたことを特徴とする耐候性塗装木
材。1. Weather-resistant coated wood characterized by having an extremely thin aluminum film interposed in the coating film formed on the wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10889380A JPS5732949A (en) | 1980-08-08 | 1980-08-08 | Coated wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10889380A JPS5732949A (en) | 1980-08-08 | 1980-08-08 | Coated wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5732949A JPS5732949A (en) | 1982-02-22 |
| JPH0115382B2 true JPH0115382B2 (en) | 1989-03-16 |
Family
ID=14496273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10889380A Granted JPS5732949A (en) | 1980-08-08 | 1980-08-08 | Coated wood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5732949A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203640A (en) * | 1984-03-29 | 1985-10-15 | Mitsuboshi Belting Ltd | Bonding of water-proofing sheet |
-
1980
- 1980-08-08 JP JP10889380A patent/JPS5732949A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5732949A (en) | 1982-02-22 |
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