JP3986248B2 - Exterior wall material makeup method - Google Patents

Description

この水系塗料の内、にじみの状態が良く判るように一方に白、他方に黒の顔料を使用し、前者を第一の塗料、後者を第二の塗料とした。
【００１３】
また、被塗装板としては、通常の抄造法で製板され、通常の方法で養生硬化された、幅４５センチメートル、長さ１８０センチメートル、厚さ４．５ミリメートルの繊維補強セメント板を多数枚用意した。
実施例１
試験板の表面全面にシーラーを塗装し自然乾燥させた後、中塗としてアクリルエマルジョン樹脂塗料を１２０〜１４０ｇ／ｍ²で塗装した。
【００１４】
そのまま中塗塗料の指触乾燥後、第一の塗料をスプレーにて１０〜４０ｇ／ｍ²の割合で均一に塗装し、自然乾燥により指触乾燥させ、次いで第二の塗料を同様にスプレーにて１０〜４０ｇ／ｍ²均一に塗装し指触乾燥させた。
【００１５】
その後、水系のクリヤー樹脂塗料として、アクリルエマルジョン樹脂塗料を８０〜１４０ｇ／ｍ²で塗装し、このアクリルエマルジョン樹脂塗料に含まれる水で第二の塗料と第一の塗料とを溶解させ相互のにじみを発生させると共にクリヤー塗装層へも第一、第二の塗料のにじみを生じさせた。
【００１６】
そのまま自然放置して乾燥硬化させた。
実施例２
実施例１における各塗料の自然乾燥の部分を、熱風乾燥による強制乾燥とした他は実施例１と同様にして塗装を行った。
実施例３
実施例１と同様、試験板の表面全面にシーラーを塗装し強制乾燥させた後、中塗としてアクリルエマルジョン樹脂塗料を１２０〜１４０ｇ／ｍ²で塗装した。
【００１７】
この中塗塗料を強制乾燥で指触乾燥後、第一の塗料をスプレーにて１０〜４０ｇ／ｍ²の割合で、実施例１とは異なって任意の場所に部分的に塗装し強制乾燥により指触乾燥させ、次いで、第二の塗料を同様にスプレーにて１０〜４０ｇ／ｍ²で部分的に塗装し、強制乾燥させて指触乾燥させた。
【００１８】
その後、水系のクリヤー樹脂塗料として、アクリルエマルジョン樹脂塗料を８０〜１４０ｇ／ｍ²で塗装し、このアクリルエマルジョン樹脂塗料に含まれる水で第二の塗料と第一の塗料とを溶解させ相互のにじみを発生させると共にクリヤー塗装層へもにじみを生じさせた。
【００１９】
次いで熱風による強制乾燥により乾燥硬化させた。
実施例４
実施例１と同様、試験板の表面全面にシーラーを塗装し強制乾燥させた後、中塗としてアクリルエマルジョン樹脂塗料を１２０〜１４０ｇ／ｍ²で塗装した。
【００２０】
この中塗塗料を強制乾燥で指触乾燥後、第一の塗料をスプレーにて１０〜４０ｇ／ｍ²の割合で任意の場所に部分的に塗装し、強制乾燥により指触乾燥させ、次いで第二の塗料を同様にスプレーにて１０〜４０ｇ／ｍ²で第一の塗料と同様部分的に塗装し、強制乾燥させて指触乾燥させた。
【００２１】
ついで、スプレーにて任意の場所に３０〜１００ｇ／ｍ²で水を散布し、水散布場所の塗料を水に溶解させてにじませつつ、強制乾燥させた。
そして最終的にアクリルエマルジョン樹脂塗料のクリヤー樹脂塗料を８０〜１４０ｇ／ｍ²で塗装した。
実施例５
実施例４における第一の塗料、第二の塗料の塗布状態を部分的とした他は、実施例４と同様にして塗装した。
比較例１
試験板表面にシーラー塗装し乾燥後、中塗としてアクリルエマルジョン樹脂塗料を１２０〜１４０ｇ／ｃｍ２塗装し、強制乾燥で指触乾燥後、表面に水を散布し乾燥しない間にスプレー装置でスパッタ状に水系塗料を塗布し、にじみを生じさせ完全に乾燥させた。その後表面にクリヤー塗装した。
比較例２
試験板表面にシーラー塗装し乾燥後、エアスプレー塗装機で表１に掲げた２色の塗料のうち、第一の塗料が乾燥しない内に第二の塗料を塗装し、にじみを生じさせ、完全に乾燥させた後クリヤー塗装した。
【００２２】
次いで、実施例１〜５と比較例１〜２について視覚による官能試験を行ったところ、実施例は表面のクリヤー透明層にまでにじみの塗料が浮き出ており、透明感とその層ににじむ色彩とが交じり合って深みのある意匠性に富む外観であったのに対し、比較例は透明クリヤー層には全く塗料がにじみ出していないため、平坦な奥行きのない外観であった。
【００２３】
また、実施例のものはクリヤー層ににじみ込んだ着色顔料のため、紫外線の透過が押さえられ、クリヤー層と着色塗装層との界面での劣化、クラックの発生、剥離が押さえられる。
【００２４】
次に、サンシャインウエザーメータによる促進耐候性試験を行ったところ、図１に示すように実施例１〜５のものは比較例１、２に比べ長時間の促進耐候性試験にもかかわらず光沢の低下は僅かであった。
【００２５】
上記実施例として、水系樹脂塗料に代え、溶剤系の塗料を用いて同様に試験を行ったところ、同一の結果となった。
また、スプレーノズルやインクジェット塗装機による塗装を行った場合、水系塗料の場合は水を、溶剤系塗料の場合は溶剤をスプレーノズルから噴射すれば、ノズルの噴射口詰まりが防止できて都合が良い。
【００２６】
【発明の効果】
この発明は、以上のように構成されているので、請求項１、請求項２の発明によれば、水系、溶剤系の従来と変わらない塗料を用いているにも拘わらず、表面のクリヤー層にも塗料にじみを生じさせるので、自然石風の、表面透明層の中ににじみのある着色層が形成され、自然石風の着色塗装が容易に実現可能となる。
【００２７】
また、透明クリヤー層に、顔料入りの塗料がにじみ込むため、この顔料によって紫外線の透過が押さえられ、クリヤー層と着色層との界面の劣化、剥離が防止出来る効果を有する。
【００２８】
さらに、請求項１の発明によれば溶剤が水であるので、作業環境が安全かつ衛生的に保てるといった効果を有する。
また、請求項３の発明によれば、部分的ににじみの変化を起こさせることができ、簡単な手段で複雑かつ高級感に溢れる着色塗装が容易に実現可能となる。
【図面の簡単な説明】
【図１】促進耐候性試験の試験結果を示すグラフである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for making up an outer wall material.
[0002]
[Prior art]
The fiber reinforced cement board that is widely used as an outer wall material has a smooth surface and a gray-white to gray-black color. Is done.
[0003]
In order to give a natural texture and texture as such a colored pattern, there are cases where two or more colors of paints are used and the paints are smeared with each other.
As a coating means used to cause such bleeding, an ink jet coating machine, flexographic printing, gravure offset printing technology, or water is included in the surface of the object to be coated, and the paint is applied in the form of a spatter on the surface. In some cases, the ink is smeared, or two or more colors of paint are dried by an ink jet coating machine to cause the ink to smear.
[0004]
[Problems to be solved by the invention]
However, the blur due to the above-mentioned painting means is a flat pattern in which the two colors are just blotted to each other, has no depth, and has a natural stone-like transparency and has a certain depth in the transparent layer. There is a disadvantage that the three-dimensional design is lacking.
[0005]
An object of the present invention is to solve the above-mentioned problems and to obtain a colored pattern having a more natural stone-like design in which the bleeding is applied in a blur expression painting means using multiple colors.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, the exterior wall material decorative method according to claim 1 is characterized in that a first water-based paint is applied partially or entirely on the surface of an outer wall material that has undergone a base treatment, After drying, the second water-based paint having a different color is applied partially or entirely and dried, and then overcoated with the same water-based clear paint as the first and second paints, and the water contained in the clear paint Thus, the first and second paints are dissolved to cause mutual blurring, and the clear paint layer also causes blurring of the first and second paints .
[0007]
According to the method of the present invention, a paint of another color is applied onto the paint once dried, and then the two colors of paint are redissolved with a solvent of the clear paint, thereby causing a blur, and this blur is transparent. Since it is generated even in the clear layer, a transparent portion and a bleeding portion are generated even in the transparent layer portion, and an appearance having a three-dimensional depth is obtained.
[0008]
According to a second aspect of the present invention, there is provided a method for applying an outer wall material, wherein a first paint is applied partially or entirely to a surface of an outer wall material that has undergone a base treatment, and the first paint is dried, and then a second paint having a different color. The coating is partially or completely applied and dried, and then is overcoated with a clear coating of the same solvent as the first and second coatings, and the first and second coatings are coated with the clear coating solvent. It dissolves to cause mutual bleeding and to cause the clear paint layer to blur the first and second paints .
[0009]
In the present invention, the water-based paint according to claim 1 is replaced with a solvent-based paint. Even with such a solvent-based paint, the same effect can be obtained.
The exterior wall material makeup method according to claim 3 is the exterior wall material makeup method according to claim 1 or 2, wherein the first and second paints are applied after the second paint is applied and before the clear coating is overcoated. The same solvent is partly applied, and the blur due to the clear paint is partly generated.
[0010]
Therefore, a blurred pattern with changes can be easily created.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, examples of the present invention will be described.
First, a water-based resin paint having a composition of paint 1 to paint 4 in Table 1 was prepared as a paint.
[0012]
[Table 1]

Among these water-based paints, a white pigment was used on one side and a black pigment was used on the other side so that the bleeding state could be clearly understood, the former being the first paint and the latter being the second paint.
[0013]
In addition, as a board to be coated, many fiber reinforced cement boards having a width of 45 cm, a length of 180 cm, and a thickness of 4.5 mm, which are made by a normal paper making method and cured and cured by a normal method, are used. I prepared a sheet.
Example 1
A sealer was applied to the entire surface of the test plate and allowed to dry naturally, and then an acrylic emulsion resin coating was applied at 120 to 140 g / m ² as an intermediate coating.
[0014]
After the intermediate coating is touch-dried, the first paint is uniformly applied at a rate of 10 to 40 g / m ² by spraying, dried by natural drying and then the second paint is sprayed in the same manner. 10 to 40 g / m ^{2 was} uniformly applied and dried by touch.
[0015]
Thereafter, an acrylic emulsion resin paint is applied at 80 to 140 g / m ² as a water-based clear resin paint, and the second paint and the first paint are dissolved in water contained in the acrylic emulsion resin paint to cause mutual bleeding. And the bleeding of the first and second paints also occurred in the clear coating layer.
[0016]
It was left to stand as it was and dried and cured.
Example 2
Coating was carried out in the same manner as in Example 1 except that the natural drying portion of each paint in Example 1 was forced drying by hot air drying.
Example 3
As in Example 1, a sealer was applied to the entire surface of the test plate and forcedly dried, and then an acrylic emulsion resin paint was applied at 120 to 140 g / m ² as an intermediate coating.
[0017]
After the intermediate coating is dried by finger drying by forced drying, the first coating is sprayed at a rate of 10 to 40 g / m ^{2 at} a rate of 10 to 40 g / m ^2. Touch-dried, then the second paint was similarly partially applied by spraying at 10-40 g / m ² and force-dried to finger dry.
[0018]
Thereafter, an acrylic emulsion resin paint is applied at 80 to 140 g / m ² as a water-based clear resin paint, and the second paint and the first paint are dissolved in water contained in the acrylic emulsion resin paint to cause mutual bleeding. As well as bleeding in the clear coating layer.
[0019]
Next, it was dried and cured by forced drying with hot air.
Example 4
As in Example 1, a sealer was applied to the entire surface of the test plate and forcedly dried, and then an acrylic emulsion resin paint was applied at 120 to 140 g / m ² as an intermediate coating.
[0020]
After this intermediate coating is dried by touch with forced drying, the first coating is partially applied at a rate of 10 to 40 g / m ² by spraying, and is touch-dried by forced drying. In the same manner, the paint was partially applied by spraying at 10 to 40 g / m ² in the same manner as the first paint, and forcedly dried to dry the touch.
[0021]
Subsequently, water was sprayed at 30 to 100 g / m ² at an arbitrary place with a spray, and the paint at the water spraying place was dissolved in water and allowed to dry while being forced to dry.
Finally, a clear resin paint of acrylic emulsion resin paint was applied at 80 to 140 g / m ² .
Example 5
The coating was performed in the same manner as in Example 4 except that the application state of the first paint and the second paint in Example 4 was partial.
Comparative Example 1
After applying a sealer to the surface of the test plate and drying it, 120 to 140 g / cm2 of acrylic emulsion resin paint is applied as an intermediate coating. The paint was applied and allowed to bleed and dry completely. Then the surface was clear painted.
Comparative Example 2
After coating the surface of the test plate with a sealer and drying it, the second paint of the two paints listed in Table 1 on the air spray coater is applied before the first paint does not dry, causing blurring and completeness. After being dried, it was clear painted.
[0022]
Next, when visual sensory tests were performed on Examples 1 to 5 and Comparative Examples 1 and 2, the examples showed that the paint smeared up to the clear transparent layer on the surface, and the transparency and the color oozing in that layer In contrast, the comparative example had a flat appearance without a flat depth because no paint oozes out in the transparent clear layer.
[0023]
Further, since the examples are colored pigments that have blotted into the clear layer, transmission of ultraviolet rays is suppressed, and deterioration, cracking, and peeling at the interface between the clear layer and the colored coating layer are suppressed.
[0024]
Next, an accelerated weather resistance test using a sunshine weather meter was conducted. As shown in FIG. The decrease was slight.
[0025]
As an example, when the same test was conducted using a solvent-based paint instead of the water-based resin paint, the same result was obtained.
Also, when spraying with a spray nozzle or an inkjet coating machine, spraying water from water-based paints and solvent from solvent-based paints is convenient because it can prevent nozzle clogging. .
[0026]
【The invention's effect】
Since the present invention is configured as described above, according to the first and second aspects of the present invention, the clear layer on the surface is used in spite of the use of a water-based or solvent-based paint that is not different from the conventional one. In addition, since the paint bleeds, a natural colored stone-like colored layer with a bleed is formed in the transparent surface layer, and natural colored paint can be easily realized.
[0027]
In addition, since the paint containing the pigment soaks into the transparent clear layer, this pigment has an effect of suppressing the transmission of ultraviolet rays and preventing the deterioration and peeling of the interface between the clear layer and the colored layer.
[0028]
Furthermore, according to the invention of claim 1, since the solvent is water, there is an effect that the working environment can be kept safe and hygienic.
Further, according to the invention of claim 3, it is possible to cause a partial change in blurring, and it is possible to easily realize a colored coating overflowing with a complex and high-class feeling with simple means.
[Brief description of the drawings]
FIG. 1 is a graph showing test results of an accelerated weather resistance test.

Claims (3)

The first water-based paint is applied partially or entirely to the surface of the outer wall material that has been subjected to the base treatment, and after the first paint is dried, the second water-based paint having a different color is partially or completely applied. Apply and dry, then topcoat with the same water-based clear paint as the first and second paints , dissolve the first and second paints with the moisture contained in the clear paint, A method of applying an outer wall material that causes the first and second paints to bleed into the clear coating layer . The first paint is applied partially or completely to the surface of the outer wall material that has been subjected to the ground treatment, and after the first paint is dried, the second paint having a different color is applied partially or completely. And then overcoating with the clear paint of the same solvent as the first and second paints , dissolving the first and second paints with the solvent of the clear paint, causing mutual blurring and clearing A decorative method for an outer wall material that causes the first and second paints to bleed on a paint layer .   3. A method for making an outer wall material according to claim 1 or 2, wherein after the application of the second paint is completed, before the overcoating with the clear paint, water or the same solvent as the first and second paints is partially applied, and thereafter A makeup method for outer wall materials that causes clear paint to cause partial blurring due to clear paint.

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