JP4989886B2 - Method for manufacturing an object having an inorganic coating film - Google Patents

Method for manufacturing an object having an inorganic coating film Download PDF

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JP4989886B2
JP4989886B2 JP2005368013A JP2005368013A JP4989886B2 JP 4989886 B2 JP4989886 B2 JP 4989886B2 JP 2005368013 A JP2005368013 A JP 2005368013A JP 2005368013 A JP2005368013 A JP 2005368013A JP 4989886 B2 JP4989886 B2 JP 4989886B2
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coating film
inorganic coating
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宏二 小川
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有限会社ペイントスタッフ
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本発明は、例えば、金属(ステンレス、アルミ、鉄等)等から成る基体の表面に無機系塗装膜を備えた物体製造方法に関する。 The present invention is, for example, a metal (stainless steel, aluminum, iron, etc.) process for the preparation of an object with an inorganic coating film on the surface of a substrate made of such.

従来より、自動車、建築、厨房機器、家電機器、家庭用品等の様々な分野において、金属から成る基体の表面を保護するために、あるいは、親水性、抗菌性等の機能を付与するために、基体の表面に塗装膜を形成することが行われてきた。塗装膜としては、有機系塗装膜や、無機系塗装膜が用いられてきた(特許文献1参照)。
特開平6−329950号公報
Conventionally, in various fields such as automobiles, buildings, kitchen appliances, home appliances, household products, etc., in order to protect the surface of a substrate made of metal, or to impart functions such as hydrophilicity and antibacterial properties, Forming a coating film on the surface of a substrate has been performed. As the coating film, an organic coating film or an inorganic coating film has been used (see Patent Document 1).
JP-A-6-329950

しかしながら、有機系塗装膜を基体の表面に形成した場合は、有機系塗装膜の硬度が十分でないため、基体の表面を保護できず、基体に傷がついてしまうことがあった。
また、塗装膜を、金属から成る基体の表面に形成し、その基体を屈曲させたとき、一連な硬い塗装膜のため、その屈曲部において塗装膜が基体から剥離してしまうことがあった。
However, when the organic coating film is formed on the surface of the substrate, the hardness of the organic coating film is not sufficient, so that the surface of the substrate cannot be protected and the substrate may be damaged.
Further, when a coating film is formed on the surface of a base made of metal and the base is bent, the coating film may be peeled off from the base at the bent portion because of a series of hard coating films.

本発明は以上の点に鑑みなされたものであり、硬度が高く、基体を屈曲させても基体から剥離しない塗装膜を備えた物体製造方法を提供することを目的とする。 The present invention is intended is been made in consideration of these circumstances, high hardness, and an object thereof is to provide a method of manufacturing an object having a paint film does not separate from the substrate even by bending the substrate.

(1)請求項1の発明は、
屈曲部を有する板状の基体と、前記屈曲部の表面に形成された無機系塗装膜とを備えた物体の製造方法であって、前記基体の表面に厚み10〜30μmの無機系塗装膜を設ける工程と、前記基体において前記無機系塗装膜を形成した部分を、屈曲部におけるRが1.5R〜3.0Rの範囲で、主平面に属する折り曲げ線において屈曲角度30〜180度に屈曲する工程と、を有し、前記無機系塗装膜が、
(a)アルカリ金属シリケートと、
(b)ケイ酸カルシウム及び/又はリン酸亜鉛と、
(c)コレマイト及び/又はウレキサイトを主成分とした天然ガラスを鱗片状としたものと、
を含むことを特徴とする物体の製造方法を要旨とする。
(1) The invention of claim 1
An object manufacturing method comprising a plate-like substrate having a bent portion and an inorganic coating film formed on the surface of the bent portion, wherein an inorganic coating film having a thickness of 10 to 30 μm is formed on the surface of the substrate. And the step of providing the portion where the inorganic coating film is formed on the substrate is bent at a bending angle of 30 to 180 degrees at a bending line belonging to the main plane, with R in the bent portion being in the range of 1.5R to 3.0R. A step, wherein the inorganic coating film is
(A) an alkali metal silicate;
(B) calcium silicate and / or zinc phosphate;
(C) natural glass mainly composed of colemite and / or urexite in a scaly shape,
The gist of the manufacturing method of an object characterized by comprising:

本発明で製造された物体は、基体の表面に形成された塗装膜が無機系塗装膜であることにより、基体と塗装膜との密着性が高く、基体に屈曲加工を施しても、塗装膜が基体から剥離してしまうようなことがない。 The object manufactured according to the present invention has high adhesion between the substrate and the coating film because the coating film formed on the surface of the substrate is an inorganic coating film. Even if the substrate is bent, the coating film Does not peel off from the substrate.

また、本発明で製造された物体は、硬度が高い無機系塗装膜を備えているので、他の物体と接触しても、傷が付きにくい。さらに、本発明で製造された物体は、その表面に無機系塗装膜を有することにより、親水性が高く、耐汚染性及び耐薬品性において優れている。 Moreover, since the object manufactured by this invention is equipped with the inorganic type coating film with high hardness, even if it contacts with another object, it is hard to be damaged. Furthermore, the object manufactured by the present invention has an inorganic coating film on the surface thereof, so that it has high hydrophilicity and is excellent in stain resistance and chemical resistance.

前記基体としては、例えば、自動車、建築、厨房機器、家電機器、家庭用品等の様々な分野において用いられる素材が挙げられる。基体の材質は特に限定されず、例えば、アルミ、ステンレス、鉄などの金属が挙げられる。また、基体の形状は状の形状であるExamples of the base include materials used in various fields such as automobiles, architecture, kitchen equipment, home appliances, and household products. The material of the substrate is not particularly limited, and examples thereof include metals such as aluminum, stainless steel, and iron. The shape of the substrate is a plate-like shape.

前記屈曲加工えば、図2に示すように、板状の基体を、その主平面に属する折り曲げ線において折り曲げる加工である。屈曲させる角度0〜180度の範囲である。また、屈曲部におけるRは、.5R〜3.0R(好ましくは1.5R)の範囲である。また、屈曲させる方向は、図2における屈曲部7のように、無機系塗装膜3が外側になる方向でもよいし、図2における屈曲部9のように、無機系塗装膜3が内側となる方向でもよい。 The bending processing, if example embodiment, as shown in FIG. 2, a plate-shaped base, a machining bending in bending line belonging to the main plane. The bending angle is in the range of 30 to 180 degrees. In addition, R in the bending portion is 1. It is in the range of 5R to 3.0R (preferably 1.5R). Further, the direction of bending may be a direction in which the inorganic coating film 3 is on the outside as in the bending portion 7 in FIG. 2, or the inorganic coating film 3 is on the inside as in the bending portion 9 in FIG. Direction may be used.

前記無機系塗装膜は、例えば、無機系塗料を基体の表面に塗布し、溶媒を乾燥させることで形成することができる。無機系塗料としては、例えば、以下のa〜j成分のうちの1以上を含むものがある。   The inorganic coating film can be formed, for example, by applying an inorganic coating to the surface of the substrate and drying the solvent. Examples of the inorganic paint include one or more of the following a to j components.

a.アルカリ金属シリケート:アルカリ金属シリケートは、アルカリ金属のケイ酸塩であって、バインダーとして使用することができる。a成分としては、例えば、ケイ酸リチウム、ケイ酸ナトリウム、ケイ酸カリウム等が挙げられる。a成分は、後述するc成分と併用すれば、脱水収縮反応及びゲル化反応を起こして固化する作用を奏する。   a. Alkali metal silicates: Alkali metal silicates are alkali metal silicates that can be used as binders. Examples of the component a include lithium silicate, sodium silicate, and potassium silicate. If the component a is used in combination with the component c described later, it has the effect of solidifying by causing a dehydration shrinkage reaction and a gelation reaction.

b.ケイ酸カルシウム及び/又はリン酸亜鉛:このb成分は、上記a成分と併用することが好ましく、その場合のb成分の配合量は、a成分100重量部に対して、5〜70重量部の範囲が好適である。   b. Calcium silicate and / or zinc phosphate: The component b is preferably used in combination with the component a. In this case, the amount of component b is 5 to 70 parts by weight with respect to 100 parts by weight of the component a. A range is preferred.

c.ホウ酸塩:ホウ酸塩としては、例えば、ホウ酸マグネシウム、ホウ酸カルシウム、ホウ酸バリウム、ホウ酸ストロンチウム、ホウ酸亜鉛、ホウ酸アルミニウム等が挙げられ、これらを単独で、または2種以上を混合して用いることができる。c成分は、上記a成分と併用することが好ましく、その場合のホウ酸塩の配合量は、a成分100重量部に対し、0.5〜30重量%の範囲が好適である。0.5重量%以上とすることにより、塗装膜を十分に固化させることができ、35重量%以下であることにより、過剰な固化に起因する塗装膜の微細な亀裂の発生を防止することができる。   c. Borate: Examples of the borate include magnesium borate, calcium borate, barium borate, strontium borate, zinc borate, aluminum borate, etc., and these may be used alone or in combination of two or more. It can be used by mixing. The component c is preferably used in combination with the component a, and the amount of borate in that case is preferably in the range of 0.5 to 30% by weight with respect to 100 parts by weight of the component a. By setting the content to 0.5% by weight or more, the coating film can be sufficiently solidified, and by setting the content to 35% by weight or less, generation of fine cracks in the coating film due to excessive solidification can be prevented. it can.

d.コレマナイト(2CaO、3B23、5H2O)及び/又はウレキサイト(Na2O、2CaO、5B23、16H2O)を主成分とした天然ガラス(無機充填剤):無機系塗料は、d成分を含有すると、コレマナイト又はウレキサイトに含まれるB23成分のガラス化により強固な塗装膜を形成することができる。なお、d成分は、他の天然ガラスをコレマナイト或いはウレキサイトと混合させてもよいが、コレマナイト及び/又はウレキサイトの混合量は少なくともd成分総量の約10重量%以上であることが好ましく、30重量%以上であることが一層好ましい。 d. Natural glass (inorganic filler) mainly composed of colemanite (2CaO, 3B 2 O 3 , 5H 2 O) and / or urexite (Na 2 O, 2CaO, 5B 2 O 3 , 16H 2 O): When the component d is contained, a firm coating film can be formed by vitrification of the B 2 O 3 component contained in the colemanite or urexite. The component d may be a mixture of other natural glass with colemanite or urexite, but the amount of colemanite and / or urexite is preferably at least about 10% by weight or more of the total amount of component d, and is 30% by weight. It is still more preferable that it is above.

無機系塗料において、d成分の配合量は、基体の材質によって変えることができ、歪みの大きな基体の場合は多く配合し、吸水率の大きな基体の場合は少なく配合することが好ましい。また、d成分は、上記a成分と併用することが好ましく、その場合における、d成分の配合量は、a成分100重量部に対して5〜200重量部の範囲が好ましい。コレマナイト及び/又はウレキサイトを含有した天然ガラスの形状は、平均粒径30μmで厚み1.0μm以下の鱗片状が好ましい。このような形状とすることにより、天然ガラスを良好に混在できると共に、被覆力の強い塗装膜を形成することができる。   In the inorganic coating material, the amount of component d can be changed depending on the material of the substrate, and it is preferable to add more in the case of a substrate with a large strain and less in the case of a substrate with a large water absorption. The component d is preferably used in combination with the component a. In this case, the amount of the component d is preferably in the range of 5 to 200 parts by weight with respect to 100 parts by weight of the component a. The natural glass containing colemanite and / or urexite preferably has a scaly shape having an average particle size of 30 μm and a thickness of 1.0 μm or less. By setting it as such a shape, natural glass can be mixed well and a coating film with strong covering power can be formed.

e.透明シリカ:透明シリカの形状は、厚み0.01〜0.5μm、面径2〜5μmが好ましい。このような透明シリカとしては、旭硝子株式会社製のサンラブリー(登録商標)LFS等が挙げられる。e成分は、上記a成分と併用することが好ましく、その場合のe成分の配合量は、a成分100重量部に対し、0.5〜50重量%の範囲が好適である。0.5重量%以上であることにより、塗装膜の被覆力を高めることができ、50重量%以下であることにより、塗装膜の透明性が低下してしまったり、塗料としての粘度が高く不安定となって均一な厚みで塗布できなくなってしまうようなことがない。   e. Transparent silica: The transparent silica preferably has a thickness of 0.01 to 0.5 μm and a surface diameter of 2 to 5 μm. Examples of such transparent silica include Sun Lovely (registered trademark) LFS manufactured by Asahi Glass Co., Ltd. The component e is preferably used in combination with the component a. In this case, the amount of the component e is preferably in the range of 0.5 to 50% by weight with respect to 100 parts by weight of the component a. When it is 0.5% by weight or more, the covering power of the coating film can be increased, and when it is 50% by weight or less, the transparency of the coating film is lowered or the viscosity as a paint is high. There is no possibility that the coating becomes stable with a uniform thickness.

f.ガラスフレーク:ガラスフレークの厚みは0.5μm以下が好ましく、形状は極薄状が好ましい。f成分は、上記a成分と併用することが好ましく、その場合のf成分の配合量は、a成分100重量部に対し、1〜30重量部の範囲が好適である。   f. Glass flakes: The thickness of the glass flakes is preferably 0.5 μm or less, and the shape is preferably extremely thin. The component f is preferably used in combination with the component a. In this case, the blending amount of the component f is preferably in the range of 1 to 30 parts by weight with respect to 100 parts by weight of the component a.

g.微粉状絹雲母(セリサイト):微粉状絹雲母の平均粒度は、30μm以下が好ましい。この成分を配合することにより、塗装面を平滑にし、塗装面の表面での付着物の離型性、即ち付着物の付着状態を弱くして浮き離れを良好にすることで払拭を容易にすることができる。g成分は、上記a成分と併用することが好ましく、その場合のg成分の配合量は、a成分100重量部に対し、5〜30重量%の範囲が好適であり、特に10〜25重量%の範囲が最適である。   g. Finely powdered sericite (sericite): The average particle size of the finely powdered sericite is preferably 30 μm or less. By blending this component, the painted surface is smoothed, and the detachment of the deposit on the surface of the painted surface, that is, the adhesion state of the deposit is weakened to facilitate the wiping away, thereby facilitating wiping. be able to. The g component is preferably used in combination with the a component. In this case, the blending amount of the g component is preferably in the range of 5 to 30% by weight, particularly 10 to 25% by weight, relative to 100 parts by weight of the a component. The range of is optimal.

h.抗菌金属酸化物粉:無機系塗料は、h成分を含有することにより抗菌効果を奏する。h成分としては、例えば、銀、銅、マグネシウム、亜鉛等の粉状体を用いることができる。h成分は、上記a成分と併用することが好ましく、その場合のh成分の配合量は、a成分100重量部に対し、0.4〜5重量部の範囲が好適であり、0.5〜4重量部の範囲が特に好適である。0.4重量部以上であることにより、抗菌効果が強くなり、5重量部以下であることにより、顔料の発色に悪い影響をおよぼしたり、コスト高になったりすることがない。   h. Antibacterial metal oxide powder: The inorganic paint exhibits an antibacterial effect by containing the h component. As h component, powdery bodies, such as silver, copper, magnesium, zinc, can be used, for example. The component h is preferably used in combination with the component a. In this case, the amount of the component h is preferably in the range of 0.4 to 5 parts by weight with respect to 100 parts by weight of the component a, 0.5 to A range of 4 parts by weight is particularly suitable. When the amount is 0.4 parts by weight or more, the antibacterial effect is strong, and when the amount is 5 parts by weight or less, the coloring of the pigment is not adversely affected and the cost is not increased.

i.炭化珪素:無機系塗料は、i成分を配合することにより、顕著な耐熱性を奏する。i成分は、上記a成分と併用することが好ましく、その場合のi成分の配合量は、a成分100重量部に対し、7〜60重量部の範囲が好適であり、25〜40重量部の範囲が特に好適である。7重量部以上であることにより、耐熱効果が高く、60重量部以下であることにより、無機系塗料が高粘度になって塗料の性状が不良になってしまうようなことがない。   i. Silicon carbide: The inorganic coating material exhibits remarkable heat resistance by blending the i component. The component i is preferably used in combination with the component a. In this case, the amount of the component i is preferably 7 to 60 parts by weight with respect to 100 parts by weight of the component a, and 25 to 40 parts by weight. A range is particularly suitable. When it is 7 parts by weight or more, the heat resistance effect is high, and when it is 60 parts by weight or less, the inorganic paint does not become highly viscous and the properties of the paint do not become poor.

j.酸化チタン:j成分は、上記a成分と併用することが好ましく、その場合のj成分の配合量は、a成分100重量部に対し、10〜35重量部の範囲が好適である。
無機系塗料としては、上記a、b、d成分を含むもの、上記a、c、e成分を含むもの、上記a、b、d、f成分を含むもの、上記a、b、d、g成分を含むもの、a、b、d、h、i成分を含むもの等が好適である。これらの3成分以上を含む無機系塗料において、b〜j成分の配合量は、a成分100重量部に対する配合量として上述した範囲が好適である。
j. Titanium oxide: The j component is preferably used in combination with the a component. In this case, the amount of the j component is preferably in the range of 10 to 35 parts by weight with respect to 100 parts by weight of the a component.
Inorganic paints include those containing the components a, b and d, those containing the components a, c and e, those containing the components a, b, d and f, components a, b, d and g. And those containing a, b, d, h and i components are suitable. In the inorganic coating composition containing these three or more components, the blending amount of the b to j components is preferably in the range described above as the blending amount with respect to 100 parts by weight of the a component.

無機系塗料を塗布後、乾燥させるために、例えば、温風を吹き付けて焼き付けを行うことができる。焼き付けの方法としては、例えば、100℃で約5分間予備乾燥し、その後20〜25分かけて180℃以上(好ましくは200℃以上、より好ましくは250℃程度)まで昇温させ、5〜10分間その温度を維持する方法がある。また、無機系塗料を塗布後、室温で放置することにより乾燥させ、無機系塗装膜を形成してもよい。
(2)請求項2の発明は、
前記無機系塗装膜が、ホウ素イオンを含有するガラス構造を備えることを特徴とする請求項記載の物体の製造方法を要旨とする。
In order to dry after applying the inorganic paint, for example, baking can be performed by blowing hot air. As a baking method, for example, preliminary drying is performed at 100 ° C. for about 5 minutes, and then the temperature is raised to 180 ° C. or higher (preferably 200 ° C. or higher, more preferably about 250 ° C.) over 20 to 25 minutes. There is a way to maintain that temperature for a minute. Further, after applying the inorganic coating material, it may be dried by leaving it at room temperature to form an inorganic coating film.
(2) The invention of claim 2
The inorganic coating film, the gist of the method for manufacturing an object according to claim 1, characterized in that it comprises a glass structure containing boron ions.

本発明で製造された物体は、無機系塗装膜が上記のものであることにより、無機系塗装膜の剥離しにくさ、傷の付きにくさが一層著しい。また、本発明で製造された物体は、無機系塗装膜が上記のものであることにより、親水性が一層高く、耐汚染性及び耐薬品性において一層優れている The object manufactured according to the present invention is more remarkably difficult to be peeled off and scratched due to the inorganic coating film as described above. Moreover, the object manufactured by the present invention has higher hydrophilicity due to the inorganic coating film as described above, and is further excellent in stain resistance and chemical resistance .

本発明において、無機系塗装膜は、コレマナイト又はウレキサイトに含まれるB23成分のガラス化により強固な塗装膜を形成する。そのため、本発明で製造された物体は、無機系塗装膜の剥離しにくさ、傷の付きにくさが一層著しい。また、本発明で製造された物体は、無機系塗装膜が上記のものであることにより、親水性が一層高く、耐汚染性及び耐薬品性において一層優れている。 In the present invention, the inorganic coating film forms a strong coating film by vitrification of the B 2 O 3 component contained in the colemanite or urexite. For this reason, the object manufactured according to the present invention is much more difficult to peel off the inorganic coating film and more difficult to be scratched. Moreover, the object manufactured by the present invention has higher hydrophilicity due to the inorganic coating film as described above, and is further excellent in stain resistance and chemical resistance.

本発明で製造された物体を屈曲させても無機系塗装膜が剥離しにくい、より具体的な理由としては、以下のことが考えられる。すなわち、本発明における無機系塗装膜は、無機充填材であるコレマナイト又はウレキサイトを主成分とした天然ガラスを鱗片状としたものを幾重にも積層分散させた構造を有するので、被塗物との密着性が促進され、屈曲にも耐えられる強固な塗膜となっている。 The following can be considered as a more specific reason why the inorganic coating film is difficult to peel off even if the object manufactured in the present invention is bent. That is, the inorganic coating film in the present invention has a structure in which a natural glass mainly composed of an inorganic filler, ie, colemanite or urexite, is scaled and dispersed in layers, Adhesion is promoted and it is a strong coating film that can withstand bending.

上記コレマナイト又はウレキサイトを主成分とした天然ガラスを鱗片状としたものの平均粒径は、30μm程度が好ましく、厚みは1.0μm以下が好ましい The average particle size of the natural glass mainly composed of colemanite or urexite in the form of scales is preferably about 30 μm, and the thickness is preferably 1.0 μm or less .

発明によれば、例えば、屈曲した物体を製造するときでも、まず、平板状の基体に無機系塗装膜を形成し、その後に、基体を所望の形状に屈曲させることができる。こうすれば、塗装膜を形成するときは、基体は平板状であるので、最初から屈曲させた基体に塗装膜を形成する場合とは異なり、塗装しにくい部分(例えば凸部の影)がなく、均一に塗装膜を形成することができる。 According to the present invention, for example, even when a bent object is manufactured, an inorganic coating film can be first formed on a flat substrate, and then the substrate can be bent into a desired shape. In this way, when the coating film is formed, the substrate is flat, so unlike the case where the coating film is formed on the substrate bent from the beginning, there is no portion that is difficult to paint (for example, the shadow of the convex portion). A uniform coating film can be formed.

本発明の実施の形態を実施例により説明する。 The embodiment of the present invention will be described with reference to examples.

(i)無機系塗料の製造
以下の原料をボールミルで10分間混合し、無機系塗料を製造した。
ケイ酸ナトリウム:100重量部
硬化剤(ケイ酸カルシウム):5重量部
硬化剤(リン酸亜鉛):10重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたコレマナイト:80重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたウレキサイト:20重量部
顔料(酸化チタン):33重量部
顔料(チタン黄):1重量部
平均粒径30μm以下の微粉状絹雲母:25重量部
極薄フレーク状をした厚み0.5μm以下のガラスフレーク:10重量部
水:50重量部
(ii) 無機系塗装膜の形成
図1に示すように、アルミ板(基体)1の片方の面全体に、上記(i)で製造した無機系塗料をスプレーを用いて塗布し、無機系塗装膜3を形成した。
(iii) 無機系塗装膜の乾燥工程
無機系塗装膜3を乾燥させ、アルミ板1と、その表面に形成された無機系塗装膜3とを備える物体5を製造した。乾燥方法としては、温度230℃の熱風を無機系塗装膜3に35分間吹き付ける方法とした。乾燥後の無機系塗装膜3の厚みは30μmであった。
(iv)物体5の屈曲加工
図2に示すように、物体5の左端から略1/3の部分(屈曲部7、屈曲加工を施す部位)において、無機系塗装膜3が外側となるように、物体5を屈曲させた。また、物体5の右端から略1/3の部分(屈曲部9、屈曲加工を施す部位)において、無機系塗装膜3が内側となるように、物体5を屈曲させた。
(i) Production of inorganic paint The following raw materials were mixed in a ball mill for 10 minutes to produce an inorganic paint.
Sodium silicate: 100 parts by weight curing agent (calcium silicate): 5 parts by weight curing agent (zinc phosphate): 10 parts by weight Average particle size of 30 μm, and a scaled colemanite having a thickness of 1.0 μm or less: 80 parts by weight average Scale-shaped urexite having a particle size of 30 μm and a thickness of 1.0 μm or less: 20 parts by weight Pigment (titanium oxide): 33 parts by weight Pigment (titanium yellow): 1 part by weight Fine powdered sericite having an average particle size of 30 μm or less: 25 weights Partially thin flake-like glass flakes having a thickness of 0.5 μm or less: 10 parts by weight Water: 50 parts by weight
(ii) Formation of inorganic coating film As shown in FIG. 1, the inorganic coating material produced in the above (i) is applied to the entire surface of one side of the aluminum plate (substrate) 1 using a spray. Film 3 was formed.
(iii) Drying process of inorganic coating film The inorganic coating film 3 was dried to produce an object 5 including the aluminum plate 1 and the inorganic coating film 3 formed on the surface thereof. As a drying method, hot air having a temperature of 230 ° C. was blown onto the inorganic coating film 3 for 35 minutes. The thickness of the inorganic coating film 3 after drying was 30 μm.
(iv) Bending of the object 5 As shown in FIG. 2, the inorganic coating film 3 is placed outside in a portion (bending portion 7, a portion where bending processing is performed) of approximately 1/3 from the left end of the object 5. The object 5 was bent. In addition, the object 5 was bent so that the inorganic coating film 3 was on the inner side in a portion (bending portion 9, a portion where bending processing was performed) of approximately 1/3 from the right end of the object 5.

屈曲加工は、屈曲部7、9における屈曲度θが、30度、60度、90度、120度、150度、180度の場合のそれぞれについて、別々の物体5を用いて行った。また、屈曲部7、9におけるRはいずれも1.5Rであった。
(v)密着性の評価
屈曲部7、9における無機系塗装膜3とアルミ板1との密着性を評価した。密着性の評価方法は、クラックによる判定、密着による判定、塩水による判定の3つの方法で行った。
The bending process was performed using separate objects 5 for each of the bending degrees θ of the bending portions 7 and 9 of 30 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees, and 180 degrees. In addition, R in the bent portions 7 and 9 was 1.5R.
(v) Evaluation of adhesion The adhesion between the inorganic coating film 3 and the aluminum plate 1 at the bent portions 7 and 9 was evaluated. The evaluation method of adhesion was performed by three methods: determination by crack, determination by adhesion, and determination by salt water.

クラックによる判定とは、JISK 5600-5-1 耐屈曲性試験による判定である。その評価基準は、以下の通りである。
◎:目視観察において、全くクラックが見られない。
Judgment by a crack is a judgment by a JISK 5600-5-1 bending resistance test. The evaluation criteria are as follows.
(Double-circle): A crack is not seen at all in visual observation.

〇:目視観察において、全体の20%以下の部分に、わずかにクラックが見られる。
△:目視観察において、全体の50%未満の部分に、部分的にクラックがみられる。
×:目視観察において、全体の50%以上の部分にクラックが見られる。
O: Slight cracks are observed in 20% or less of the whole in visual observation.
(Triangle | delta): A crack is partially seen in less than 50% of the whole in visual observation.
X: In visual observation, a crack is seen in 50% or more of the whole.

密着による評価とは、JISK5400-8-5クロスカット試験(1mm方眼50ケテープ)による評価である。その評価基準は、以下の通りである。
◎:カット縁が完全に滑らかでどの格子の目にも塗膜の剥がれがない。
The evaluation by adhesion is an evaluation by a JISK5400-8-5 cross-cut test (1 mm square 50-piece tape). The evaluation criteria are as follows.
(Double-circle): The cut edge is completely smooth, and there is no peeling of the coating film in any lattice eye.

〇:カット交差点に塗膜のわずかな剥がれがあるが、剥がれのある部分の割合は、カット縁全体の20%以下である。
△:カット縁全体のうち、50%未満に、塗膜の部分的な剥がれがある。
◯: There is slight peeling of the coating film at the cut intersection, but the ratio of the part with peeling is 20% or less of the entire cut edge.
(Triangle | delta): There exists partial peeling of a coating film in less than 50% among the whole cut edges.

×:カット縁全体のうち、50%以上に塗膜の剥がれがある。
塩水による評価とは、JISK5600-7-1 塩水噴霧試験(100時間)による評価である。
その評価基準は、以下の通りである。
X: The coating film peels in 50% or more of the entire cut edge.
The evaluation by salt water is an evaluation by JISK5600-7-1 salt water spray test (100 hours).
The evaluation criteria are as follows.

◎:変化無し
〇:全体の20%以下の部分に、わずかにサビが発生した。
△:全体の50%以下の部分に、部分的なサビが発生した。
A: No change O: Slight rust was generated in 20% or less of the whole.
(Triangle | delta): Partial rust generate | occur | produced in the part below 50% of the whole.

×:全体の50%以上の部分に、全体的なサビが発生した。     X: Overall rust was generated in 50% or more of the whole.

Figure 0004989886
Figure 0004989886

上記表1に示すように、物体5において、屈曲度が120度以下では、無機系塗装膜3の密着性は非常に優れていた。特に、無機系塗装膜3が外側となるように屈曲された場合(屈曲部7)は、屈曲度が180度となっても、無機系塗装膜3の密着性は非常に優れていた。
(vi)無機系塗装膜3の硬度の評価
無機系塗装膜3の硬度を鉛筆硬度試験(JIS K7125準拠)により評価したところ、「9H」以上であり、非常に硬いことが確認できた。
(vii) 無機系塗装膜3の表面状態の評価
無機系塗装膜3の表面は親水性を示した。
As shown in Table 1 above, the adhesion of the inorganic coating film 3 was very excellent when the bending degree of the object 5 was 120 degrees or less. In particular, when the inorganic coating film 3 is bent so as to be on the outside (bending portion 7), the adhesion of the inorganic coating film 3 is very excellent even when the bending degree is 180 degrees.
(vi) Evaluation of the hardness of the inorganic coating film 3 When the hardness of the inorganic coating film 3 was evaluated by a pencil hardness test (conforming to JIS K7125), it was found to be “9H” or higher and very hard.
(vii) Evaluation of the surface state of the inorganic coating film 3 The surface of the inorganic coating film 3 was hydrophilic.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例2では、無機系塗料を、以下の原料をボールミルで15分間混合したものとした。
ケイ酸ナトリウム:100重量部
硬化剤(ケイ酸カルシウム):7重量部
硬化剤(リン酸亜鉛):3重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたコレマナイト:110重量部
顔料(酸化チタン):28重量部
平均粒径30μm以下の微粉状絹雲母:17重量部
微粉金属粉:11重量部
水:50重量部
本実施例2の物体5は、前記実施例1と同様の作用効果を奏する。
Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 2, the inorganic coating material was prepared by mixing the following raw materials for 15 minutes with a ball mill.
Sodium silicate: 100 parts by weight Curing agent (calcium silicate): 7 parts by weight Curing agent (zinc phosphate): 3 parts by weight Scaled colemanite having an average particle size of 30 μm and a thickness of 1.0 μm or less: 110 parts by weight pigment (Titanium oxide): 28 parts by weight Fine powdered sericite having an average particle size of 30 μm or less: 17 parts by weight Fine metal powder: 11 parts by weight Water: 50 parts by weight The object 5 of Example 2 is the same as that of Example 1 above. Has an effect.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例3では、無機系塗料を、以下の原料をボールミルで7分間混合したものとした。
ケイ酸ナトリウム:70重量部
ケイ酸カリウム:30重量部
硬化剤(ケイ酸カルシウム):11重量部
硬化剤(リン酸亜鉛):1重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたコレマナイト:90重量部
顔料(酸化チタン):36重量部
顔料(チタン黄):1重量部
平均粒径30μm以下の微粉状絹雲母:21重量部
水:50重量部
本実施例3の物体5は、前記実施例1と同様の作用効果を奏する。
Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. In Example 3, however, the inorganic coating material was prepared by mixing the following raw materials with a ball mill for 7 minutes.
Sodium silicate: 70 parts by weight Potassium silicate: 30 parts by weight Curing agent (calcium silicate): 11 parts by weight Curing agent (zinc phosphate): 1 part by weight An average particle size of 30 μm and a thickness of 1.0 μm or less Colemanite: 90 parts by weight Pigment (titanium oxide): 36 parts by weight Pigment (titanium yellow): 1 part by weight Fine powdered sericite with an average particle size of 30 μm or less: 21 parts by weight Water: 50 parts by weight Object 5 of Example 3 Produces the same effects as those of the first embodiment.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例4では、無機系塗料を、以下の原料をボールミルで12分間混合したものとした。
ケイ酸カリウム:70重量部
ケイ酸リチウム:30重量部
硬化剤(ケイ酸カルシウム):1重量部
硬化剤(リン酸亜鉛):9重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたコレマナイト:110重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたウレキサイト:10重量部
顔料(酸化チタン):28重量部
平均粒径30μm以下の微粉状絹雲母:23重量部
厚み0.5μm以下のガラスフレーク:15重量部
微粉金属粉:5重量部
水:50重量部
本実施例4の物体5は、前記実施例1と同様の作用効果を奏する。
Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 4, the inorganic coating material was prepared by mixing the following raw materials for 12 minutes with a ball mill.
Potassium silicate: 70 parts by weight Lithium silicate: 30 parts by weight Curing agent (calcium silicate): 1 part by weight Curing agent (zinc phosphate): 9 parts by weight A scaly shape having an average particle size of 30 μm and a thickness of 1.0 μm or less Cholemanite: 110 parts by weight Average particle size of 30 μm and scaled urexite: 10 parts by weight Pigment (titanium oxide): 28 parts by weight Fine powdered sericite with an average particle size of 30 μm or less: 23 parts by weight Glass flakes of 0.5 μm or less: 15 parts by weight Fine metal powder: 5 parts by weight Water: 50 parts by weight The object 5 of Example 4 has the same effects as those of Example 1.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例5では、無機系塗料を、以下の原料をボールミルで25分間混合したものとした。
ケイ酸ナトリウム:50重量部
ケイ酸カリウム:50重量部
硬化剤(ケイ酸カルシウム):6重量部
硬化剤(リン酸亜鉛):5重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたコレマナイト:25重量部
平均粒径30μmで厚み1.0μm以下の鱗片状としたウレキサイト:110重量部
顔料(酸化チタン):26重量部
顔料(チタン黄):2重量部
厚み0.5μm以下のガラスフレーク:9重量部
平均粒径30μm以下の微粉状絹雲母:18重量部
水:50重量部
本実施例5の物体5は、前記実施例1と同様の作用効果を奏する。
Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 5, the inorganic coating material was prepared by mixing the following raw materials with a ball mill for 25 minutes.
Sodium silicate: 50 parts by weight Potassium silicate: 50 parts by weight Curing agent (calcium silicate): 6 parts by weight Curing agent (zinc phosphate): 5 parts by weight A scaly shape having an average particle size of 30 μm and a thickness of 1.0 μm or less. Cholemanite: 25 parts by weight Average particle size of 30 μm and scaled urexite having a thickness of 1.0 μm or less: 110 parts by weight Pigment (titanium oxide): 26 parts by weight Pigment (titanium yellow): 2 parts by weight A thickness of 0.5 μm or less Glass flakes: 9 parts by weight Fine powdered sericite having an average particle size of 30 μm or less: 18 parts by weight Water: 50 parts by weight The object 5 of Example 5 has the same effects as those of Example 1.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例6では、無機系塗料を、表2に記載の原料をボールミルで3時間混合したものとした。また、無機系塗装膜3の乾燥条件は、表2に記載の条件とした。なお、表2における「極薄状ガラスフレーク」の厚みは0.5μm以下である。   Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 6, the inorganic coating material was prepared by mixing the raw materials listed in Table 2 for 3 hours with a ball mill. The drying conditions of the inorganic coating film 3 were the conditions described in Table 2. In addition, the thickness of “ultra-thin glass flakes” in Table 2 is 0.5 μm or less.

Figure 0004989886
Figure 0004989886

本実施例6−1における物体5についても、前記実施例1と同様に、屈曲加工、無機系塗装膜の密着性の評価、親水性/撥水性の評価を行った。その結果を上記表1に示す。
上記表1に示すように、物体5において、屈曲度が120度以下では、無機系塗装膜3が全く剥離していなかった。特に、無機系塗装膜3が内側となるように屈曲された場合(屈曲部7)は、屈曲度が180度となっても、無機系塗装膜3が全く剥離していなかった。また、無機系塗装膜3の表面は親水性を示した。
The object 5 in Example 6-1 was also subjected to bending processing, evaluation of adhesion of the inorganic coating film, and evaluation of hydrophilicity / water repellency in the same manner as in Example 1. The results are shown in Table 1 above.
As shown in Table 1 above, in the object 5, the inorganic coating film 3 was not peeled at all when the bending degree was 120 degrees or less. In particular, when the inorganic coating film 3 was bent so as to be inside (bending portion 7), the inorganic coating film 3 was not peeled at all even when the bending degree was 180 degrees. Further, the surface of the inorganic coating film 3 showed hydrophilicity.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例7では、無機系塗料を、表3に記載の原料をボールミルで5時間混合したものとした。また、無機系塗装膜3の乾燥条件は、表3に記載の条件とした。   Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 7, the inorganic coating material was prepared by mixing the raw materials shown in Table 3 for 5 hours with a ball mill. The drying conditions of the inorganic coating film 3 were the conditions described in Table 3.

Figure 0004989886
Figure 0004989886

本実施例7の物体5は、前記実施例1と同様の作用効果を奏する。   The object 5 of the seventh embodiment has the same operational effects as the first embodiment.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例8では、無機系塗料を、表4に記載の原料をボールミルで7時間混合したものとした。また、無機系塗装膜3の乾燥条件は、表4に記載の条件とした。   Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 8, the inorganic coating material was prepared by mixing the raw materials shown in Table 4 with a ball mill for 7 hours. The drying conditions of the inorganic coating film 3 were the conditions described in Table 4.

Figure 0004989886
Figure 0004989886

本実施例8の物体5は、前記実施例1と同様の作用効果を奏する。   The object 5 of the eighth embodiment has the same operational effects as the first embodiment.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例9では、無機系塗料を、表5に記載の原料をボールミルで7時間混合したものとした。また、無機系塗装膜3の乾燥条件は、表5に記載の条件とした。   Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 9, the inorganic coating material was prepared by mixing the raw materials shown in Table 5 with a ball mill for 7 hours. The drying conditions of the inorganic coating film 3 were the conditions described in Table 5.

Figure 0004989886
Figure 0004989886

本実施例9の物体5は、前記実施例1と同様の作用効果を奏する。   The object 5 of the ninth embodiment has the same effects as those of the first embodiment.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例10では、無機系塗料を、表6に記載の原料をボールミルで5時間混合したものとした。また、無機系塗装膜3の乾燥条件は、表6に記載の条件とした。   Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 10, the inorganic coating material was prepared by mixing the raw materials shown in Table 6 for 5 hours with a ball mill. The drying conditions of the inorganic coating film 3 were the conditions described in Table 6.

Figure 0004989886
Figure 0004989886

本実施例10の物体5は、前記実施例1と同様の作用効果を奏する。   The object 5 of the tenth embodiment has the same function and effect as the first embodiment.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例11では、無機系塗料を、表7に記載の原料をボールミルで混合したものとした。混合時間は、実施例11−1、11−2については、3時間とし、実施例11−3、11−4については、5時間とし、実施例11−5、11−6については、7時間とした。また、無機系塗装膜3の乾燥条件は、表7に記載の条件とした。   Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 11, the inorganic coating material was prepared by mixing the raw materials shown in Table 7 with a ball mill. The mixing time was 3 hours for Examples 11-1 and 11-2, 5 hours for Examples 11-3 and 11-4, and 7 hours for Examples 11-5 and 11-6. It was. The drying conditions of the inorganic coating film 3 were the conditions described in Table 7.

Figure 0004989886
Figure 0004989886

本実施例11の物体5は、前記実施例1と同様の作用効果を奏する。   The object 5 of the eleventh embodiment has the same function and effect as the first embodiment.

基本的には前記実施例1と同様に、アルミ板1の表面に無機系塗装膜3を備える物体5を製造した。ただし、本実施例12では、無機系塗料を、以下の原料をボールミルで10分間混合したものとした。
ケイ酸ナトリウム:100重量部
ホウ酸カルシウム:11重量部
厚み0.01〜0.5μm、面径2〜5μmの鱗片状の透明シリカ(サンラブリー(登録商標)LFS):48重量部(乾燥シリカとして7.2重量部)
水:適量
本実施例12の物体5は、前記実施例1と同様の作用効果を奏する。
(参考例1)
市販の無機系塗料である、(株)日興製のHEATLESS GLASSを、アルミ板(基体)1の片方の面全体にスプレーを用いて塗布し、乾燥させることで、アルミ板1と無機系塗装膜3とを備える物体5を製造した。次に、物体5に屈曲加工を施した。そして、無機系塗装膜3の密着性、硬度、親水性/撥水性を評価した。なお、無機系塗料の塗布方法、乾燥方法、屈曲加工の方法、密着性及び硬度の評価方法は前記実施例1と同様とした(ただし、無機系塗料の塗布前に、アルミ板1の表面に予めプライマーを塗布し、無機系塗装膜3の膜厚は7μmとした)。密着性の評価結果を表8に示す。
Basically, the object 5 having the inorganic coating film 3 on the surface of the aluminum plate 1 was manufactured in the same manner as in Example 1. However, in Example 12, the inorganic material was prepared by mixing the following raw materials for 10 minutes with a ball mill.
Sodium silicate: 100 parts by weight Calcium borate: 11 parts by weight Thickness of 0.01 to 0.5 μm, scaly transparent silica having a surface diameter of 2 to 5 μm (Sunlably (registered trademark) LFS): 48 parts by weight (dry silica As 7.2 parts by weight)
Water: Appropriate amount The object 5 of the twelfth embodiment has the same effects as the first embodiment.
(Reference Example 1)
Applying HEATLES GLASS made by Nikko Co., Ltd., which is a commercially available inorganic paint, to the entire surface of one side of the aluminum plate (substrate) 1 using a spray and drying it, the aluminum plate 1 and the inorganic coating film 3 was manufactured. Next, the object 5 was bent. Then, adhesion, hardness, hydrophilicity / water repellency of the inorganic coating film 3 were evaluated. Note that the coating method, drying method, bending method, adhesion and hardness evaluation method of the inorganic coating material were the same as in Example 1 (however, the surface of the aluminum plate 1 was coated before the coating of the inorganic coating material). A primer was applied in advance, and the film thickness of the inorganic coating film 3 was 7 μm). Table 8 shows the adhesion evaluation results.

Figure 0004989886
Figure 0004989886

表8に示すように、本参考例1で形成した無機系塗装膜3の密着性は、前記実施例1に比べて遙かに劣っていた。また、無機系塗装膜3の硬度は9Hであり、前記実施例1における硬度よりも低かった。また、本参考例1で形成した無機系塗装膜3は撥水性を示した。
(参考例2)
市販の無機系塗料(グリーンケミーインターナショナル製のカイケツ.eco−TiAg)を、アルミ板(基体)1の片方の面全体にスプレーを用いて塗布し、乾燥させることで、アルミ板1と無機系塗装膜3とを備える物体5を製造した。次に、物体5に屈曲加工を施した。そして、無機系塗装膜3の密着性、硬度、親水性/撥水性を評価した。なお、無機系塗料の塗布方法、乾燥方法、屈曲加工の方法、密着性及び硬度の評価方法は前記実施例1と同様とした(ただし、無機系塗料の塗布前に、アルミ板1の表面に予めプライマーを塗布し、無機系塗装膜3の膜厚は10μmとした)。
As shown in Table 8, the adhesion of the inorganic coating film 3 formed in Reference Example 1 was far inferior to that of Example 1. The hardness of the inorganic coating film 3 was 9H, which was lower than the hardness in Example 1. In addition, the inorganic coating film 3 formed in Reference Example 1 exhibited water repellency.
(Reference Example 2)
Applying a commercially available inorganic paint (Kaikets. Eco-TiAg made by Green Chemie International) to the entire surface of one side of the aluminum plate (substrate) 1 and drying it, the aluminum plate 1 and the inorganic coating An object 5 comprising a membrane 3 was produced. Next, the object 5 was bent. Then, adhesion, hardness, hydrophilicity / water repellency of the inorganic coating film 3 were evaluated. Note that the coating method, drying method, bending method, adhesion and hardness evaluation method of the inorganic coating material were the same as in Example 1 (however, the surface of the aluminum plate 1 was coated before the coating of the inorganic coating material). A primer was applied in advance, and the film thickness of the inorganic coating film 3 was 10 μm).

密着性の評価結果を上記表8に示す。
表8に示すように、本参考例2で形成した無機系塗装膜3の密着性は、前記実施例1に比べて遙かに劣っていた。また、無機系塗装膜3の硬度は6〜7Hであり、前記実施例1における硬度よりも低かった。また、本参考例2で形成した無機系塗装膜3は撥水性を示した。
(参考例3)
市販のポリエステル樹脂系の有機系塗料(川上塗料(株)製のポーセラック3000)を、アルミ板(基体)1の片方の面全体にスプレーを用いて塗布し、乾燥させることで、アルミ板1と有機系塗装膜とを備える物体5を製造した。次に、物体5に屈曲加工を施した。そして、有機系塗装膜の硬度、及び親水性/撥水性を評価した。なお、有機系塗料の塗布方法、乾燥方法、屈曲加工の方法、硬度の評価方法は前記実施例1と同様とした(ただし、有機系塗料の塗布前に、アルミ板1の表面に予めプライマーを塗布し、有機系塗装膜の膜厚は30μmとした)。
The adhesion evaluation results are shown in Table 8 above.
As shown in Table 8, the adhesion of the inorganic coating film 3 formed in Reference Example 2 was much inferior to that of Example 1. Moreover, the hardness of the inorganic coating film 3 was 6-7H, which was lower than the hardness in Example 1. Further, the inorganic coating film 3 formed in the present Reference Example 2 showed water repellency.
(Reference Example 3)
A commercially available polyester resin-based organic paint (Poserrac 3000 manufactured by Kawakami Paint Co., Ltd.) is applied to the entire surface of one side of the aluminum plate (substrate) 1 using a spray, and dried. An object 5 having an organic coating film was manufactured. Next, the object 5 was bent. Then, the hardness and hydrophilicity / water repellency of the organic coating film were evaluated. The coating method, drying method, bending method, and hardness evaluation method of the organic paint were the same as in Example 1 (however, before applying the organic paint, a primer was previously applied to the surface of the aluminum plate 1). The film thickness of the organic coating film was 30 μm.

本参考例3で形成した有機系塗装膜の硬度は、2Hであり、前記実施例1における硬度よりも遙かに低かった。また、本参考例3で形成した有機系塗装膜は撥水性を示した。
(参考例4)
市販のカラー鋼板(有機系塗料を30μmの厚みで塗布した鋼板)に屈曲加工を施した。次に、有機系塗装膜の硬度、及び親水性/撥水性を評価した。なお、屈曲加工の方法、及び硬度の評価方法は前記実施例1と同様とした。
The hardness of the organic coating film formed in Reference Example 3 was 2H, which was much lower than the hardness in Example 1. Further, the organic coating film formed in this Reference Example 3 showed water repellency.
(Reference Example 4)
A commercially available color steel plate (steel plate coated with an organic paint with a thickness of 30 μm) was subjected to bending. Next, the hardness and hydrophilicity / water repellency of the organic coating film were evaluated. The bending method and the hardness evaluation method were the same as those in Example 1.

有機系塗装膜の硬度は、2Hであり、前記実施例1における硬度よりも遙かに低かった。また、本参考例4の有機系塗装膜は撥水性を示した。
(参考例5)
市販のメラミン樹脂系の有機系塗料(ナトコ(株)製のマイルドメリット)を、アルミ板(基体)1の片方の面全体にスプレーを用いて塗布し、乾燥させることで、アルミ板1と有機系塗装膜とを備える物体5を製造した。次に、物体5に屈曲加工を施した。そして、有機系塗装膜の硬度、及び親水性/撥水性を評価した。なお、有機系塗料の塗布方法、乾燥方法、屈曲加工の方法、硬度の評価方法は前記実施例1と同様とした(ただし、有機系塗料の塗布前に、アルミ板1の表面に予めプライマーを塗布し、有機系塗装膜の膜厚は30μmとした)。
The hardness of the organic coating film was 2H, which was much lower than the hardness in Example 1. Further, the organic coating film of Reference Example 4 showed water repellency.
(Reference Example 5)
Apply a commercially available melamine resin-based organic paint (mild merit manufactured by NATCO Corporation) to the entire surface of one side of the aluminum plate (substrate) 1 using a spray, and then dry it. The object 5 provided with a system coating film was manufactured. Next, the object 5 was bent. Then, the hardness and hydrophilicity / water repellency of the organic coating film were evaluated. The coating method, drying method, bending method, and hardness evaluation method of the organic paint were the same as in Example 1 (however, before applying the organic paint, a primer was previously applied to the surface of the aluminum plate 1). The film thickness of the organic coating film was 30 μm.

本参考例5で形成した有機系塗装膜の硬度は、2Hであり、前記実施例1における硬度よりも遙かに低かった。また、本参考例5で形成した有機系塗装膜は撥水性を示した。
(参考例6)
市販のアクリル樹脂系の有機系塗料(エーエスペイント(株)製のサンメラーマックスホワイト)を、アルミ板(基体)1の片方の面全体にスプレーを用いて塗布し、乾燥させることで、アルミ板1と有機系塗装膜とを備える物体5を製造した。次に、物体5に屈曲加工を施した。そして、有機系塗装膜の硬度、及び親水性/撥水性を評価した。なお、有機系塗料の塗布方法、乾燥方法、屈曲加工の方法、硬度の評価方法は前記実施例1と同様とした(ただし、有機系塗料の塗布前に、アルミ板1の表面に予めプライマーを塗布し、有機系塗装膜の膜厚は30μmとした)。
The hardness of the organic coating film formed in Reference Example 5 was 2H, which was much lower than the hardness in Example 1. Further, the organic coating film formed in Reference Example 5 showed water repellency.
(Reference Example 6)
Apply a commercially available acrylic resin-based organic paint (Sammer Max White manufactured by AS Paint Co., Ltd.) to the entire surface of one side of the aluminum plate (substrate) 1 using a spray, and then dry the aluminum plate. An object 5 comprising 1 and an organic coating film was produced. Next, the object 5 was bent. Then, the hardness and hydrophilicity / water repellency of the organic coating film were evaluated. The coating method, drying method, bending method, and hardness evaluation method of the organic paint were the same as in Example 1 (however, before applying the organic paint, a primer was previously applied to the surface of the aluminum plate 1). The film thickness of the organic coating film was 30 μm.

本参考例6で形成した有機系塗装膜の硬度は、Hであり、前記実施例1における硬度よりも遙かに低かった。また、本参考例6で形成した有機系塗装膜は撥水性を示した。
(参考例7)
市販のシリコンアクリル樹脂系の有機系塗料(ナトコ(株)製のアルコSP)を、アルミ板(基体)1の片方の面全体にスプレーを用いて塗布し、乾燥させることで、アルミ板1と有機系塗装膜とを備える物体5を製造した。次に、物体5に屈曲加工を施した。そして、有機系塗装膜の硬度、及び親水性/撥水性を評価した。なお、有機系塗料の塗布方法、乾燥方法、屈曲加工の方法、硬度の評価方法は前記実施例1と同様とした(ただし、有機系塗料の塗布前に、アルミ板1の表面に予めプライマーを塗布し、有機系塗装膜の膜厚は30μmとした)。
The hardness of the organic coating film formed in Reference Example 6 was H, which was much lower than the hardness in Example 1. Further, the organic coating film formed in Reference Example 6 exhibited water repellency.
(Reference Example 7)
A commercially available silicon acrylic resin-based organic paint (Arco SP manufactured by NATCO Co., Ltd.) is applied to the entire surface of one side of the aluminum plate (base body) 1 using a spray, and dried. An object 5 having an organic coating film was manufactured. Next, the object 5 was bent. Then, the hardness and hydrophilicity / water repellency of the organic coating film were evaluated. The coating method, drying method, bending method, and hardness evaluation method of the organic paint were the same as in Example 1 (however, before applying the organic paint, a primer was previously applied to the surface of the aluminum plate 1). The film thickness of the organic coating film was 30 μm.

本参考例7で形成した有機系塗装膜の硬度は、Hであり、前記実施例1における硬度よりも遙かに低かった。また、本参考例7で形成した有機系塗装膜は撥水性を示した。
尚、本発明は前記実施例になんら限定されるものではなく、本発明を逸脱しない範囲において種々の態様で実施しうることはいうまでもない。
The hardness of the organic coating film formed in Reference Example 7 was H, which was much lower than the hardness in Example 1. In addition, the organic coating film formed in Reference Example 7 showed water repellency.
Needless to say, the present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the scope of the present invention.

例えば、前記実施例において、アルミ板の代わりに他の金属板(例えば、ステンレス板)を用いてもよい。   For example, in the said Example, you may use another metal plate (for example, stainless steel plate) instead of an aluminum plate.

物体5の構成を表す説明図である。3 is an explanatory diagram illustrating a configuration of an object 5. FIG. 物体5に施した屈曲加工を表す説明図である。It is explanatory drawing showing the bending process given to the object.

1・・・アルミ板
3・・・無機系塗装膜
5・・・物体
7、9・・・屈曲部
DESCRIPTION OF SYMBOLS 1 ... Aluminum plate 3 ... Inorganic coating film 5 ... Object 7, 9 ... Bending part

Claims (2)

屈曲部を有する板状の基体と、前記屈曲部の表面に形成された無機系塗装膜とを備えた物体の製造方法であって、
前記基体の表面に厚み10〜30μmの無機系塗装膜を設ける工程と、
前記基体において前記無機系塗装膜を形成した部分を、屈曲部におけるRが1.5R〜3.0Rの範囲で、主平面に属する折り曲げ線において屈曲角度30〜180度に屈曲する工程と、を有し、
前記無機系塗装膜が、
(a)アルカリ金属シリケートと、
(b)ケイ酸カルシウム及び/又はリン酸亜鉛と、
(c)コレマイト及び/又はウレキサイトを主成分とした天然ガラスを鱗片状としたものと、
を含むことを特徴とする物体の製造方法。
A method of manufacturing an object comprising a plate-like substrate having a bent portion and an inorganic coating film formed on the surface of the bent portion,
Providing an inorganic coating film having a thickness of 10 to 30 μm on the surface of the substrate;
Bending the portion of the substrate on which the inorganic coating film is formed at a bending angle of 30 to 180 degrees at a bending line belonging to the main plane in a range where R in the bent portion is 1.5R to 3.0R. Have
The inorganic coating film is
(A) an alkali metal silicate;
(B) calcium silicate and / or zinc phosphate;
(C) natural glass mainly composed of colemite and / or urexite in a scaly shape,
The manufacturing method of the object characterized by including.
前記無機系塗装膜が、ホウ素イオンを含有するガラス構造を備えることを特徴とする請求項記載の物体の製造方法。 The inorganic coating film, a manufacturing method of an object according to claim 1, characterized in that it comprises a glass structure containing boron ions.
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