JPH10279842A - Coating material for forming irregular pattern and production of coated article - Google Patents
Coating material for forming irregular pattern and production of coated articleInfo
- Publication number
- JPH10279842A JPH10279842A JP9670297A JP9670297A JPH10279842A JP H10279842 A JPH10279842 A JP H10279842A JP 9670297 A JP9670297 A JP 9670297A JP 9670297 A JP9670297 A JP 9670297A JP H10279842 A JPH10279842 A JP H10279842A
- Authority
- JP
- Japan
- Prior art keywords
- water repellent
- paint
- coating
- temperature
- 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
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 46
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000001788 irregular Effects 0.000 title abstract 2
- 239000005871 repellent Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000002940 repellent Effects 0.000 claims abstract description 30
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- 230000001747 exhibiting effect Effects 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 239000003973 paint Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 8
- 230000001846 repelling effect Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、撥水剤を塗料中に添加
した凹凸模様形成用塗料において、塗膜欠陥発生の少な
いものおよび塗装製品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint for forming a concavo-convex pattern in which a water-repellent agent is added to a paint, which has less occurrence of coating film defects and a method for producing a coated product.
【０００２】[0002]
【従来技術】従来、家電製品、音響機器、器物などの外
装部材は、それらの製造メ−カ−で冷延鋼板やめっき鋼
板などを成形加工して、自社塗装する方法で製造してい
たが、近年は製造合理化のため、製造会社は塗装金属板
を購入して、成形加工だけで外装部材を製造し、自社塗
装を廃止する傾向が強くなっている。これに対応して、
素材メ−カ−も種々の塗装金属板を提供しているが、外
装部材によっては凹凸模様を有するものの提供も要求さ
れている。2. Description of the Related Art Conventionally, exterior members such as home appliances, audio equipment, and articles have been manufactured by a method of forming a cold-rolled steel sheet or a plated steel sheet by a manufacturer thereof and coating the same in-house. In recent years, in order to rationalize production, manufacturing companies have purchased a painted metal plate, manufactured exterior members only by molding, and abolished their own painting. Correspondingly,
Material manufacturers also provide various types of coated metal plates, but there is also a demand for providing an exterior member having an uneven pattern.
【０００３】金属板の連続塗装ラインで塗膜に凹凸模様
を形成する方法としては、塗膜にエンボス加工を施す方
法、下塗り塗膜に粒状塗料をガンで散布する方法など物
理的方法が知られているが、前者の方法は塗膜厚が１０
０μｍ以上の場合にのみ可能で、外装部材のように塗膜
厚が厚くても３０μｍのものに対しては適用できない。
また、後者の方法は均一な模様が得られず、模様の再現
性にも乏しいという欠点を有する。As a method of forming a concavo-convex pattern on a coating film in a continuous coating line of a metal plate, there are known physical methods such as a method of embossing the coating film and a method of spraying a granular paint on a primer film with a gun. However, the former method has a coating thickness of 10
This is possible only when the thickness is 0 μm or more, and cannot be applied to a coating having a thickness of 30 μm even if the coating film is thick like an exterior member.
Further, the latter method has a drawback that a uniform pattern cannot be obtained and the reproducibility of the pattern is poor.
【０００４】一方、化学的な方法としては、撥水剤を塗
料に添加して、その撥水作用により塗装と同時に塗膜に
はじきを発生させる方法が知られているが、撥水剤とし
て従来実用化されているのはシリコ−ンオイルだけであ
る。しかし、シリコ−ンオイルは撥水作用が強いため、
濃度の高い部位が偏在していると、その部位に金属板や
下塗り塗膜に達するピンホ−ルの発生が局部的に発生
し、塗膜の外観や耐食性を低下させるという欠点があっ
た。On the other hand, as a chemical method, a method is known in which a water repellent is added to a paint to cause repellency of the paint film at the same time as the application of the water repellent. Only silicone oil has been put to practical use. However, since silicone oil has a strong water-repellent effect,
When a portion having a high concentration is unevenly distributed, pinholes reaching the metal plate or the undercoating film are locally generated at the portion, and there is a disadvantage that the appearance and corrosion resistance of the coating film are deteriorated.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、撥水剤添加
により凹凸模様を形成する塗料において、ピンホ−ル発
生の少ない塗料および塗装製品の製造方法を提供するも
のである。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a paint and a coated product which are less likely to produce pinholes in a paint which forms an uneven pattern by adding a water repellent.
【０００６】[0006]
【課題を解決するための手段】本発明の塗料は、溶融温
度が常温より高く、塗料樹脂の分解温度より低く、溶融
状態で撥水作用を発揮する撥水剤を添加したことを特徴
としている。また、製造方法は被塗装材に下塗り塗料を
塗装して、硬化させた後、前記塗料を上塗り塗装して、
塗膜を撥水剤の溶融温度以上、樹脂の分解温度以下に加
熱し、乾燥することを特徴としている。The paint of the present invention is characterized in that a water-repellent agent having a melting temperature higher than room temperature and lower than the decomposition temperature of the coating resin and exhibiting a water-repellent action in a molten state is added. . In addition, the manufacturing method is to apply a primer to the material to be coated, and after curing, apply a top coat of the paint,
It is characterized in that the coating film is heated to a temperature equal to or higher than the melting temperature of the water repellent and equal to or lower than the decomposition temperature of the resin, and dried.
【０００７】[0007]
【作用】撥水剤は、常温で固体であるので、塗料中に分
散させることができる。また、塗料は常温で塗装して
も、撥水剤が溶融していないので、ウェット塗膜には凹
凸模様が発生せず、塗膜は平坦である。しかし、ウェッ
ト塗膜が乾燥の際に撥水剤の溶融温度以上に加熱される
と、撥水剤は溶融して、撥水作用を発揮し、撥水剤周辺
に存在する未乾燥塗料をはじく。このため、ウェット塗
膜には凹凸模様が形成され、その状態で乾燥硬化され
る。ウェット塗膜に凹凸模様が形成されるとき、ウェッ
ト塗膜は撥水剤の溶融温度以上に加熱されているので、
塗膜の流動性は常温の場合より高く、撥水剤の撥水作用
がシリコ−ンオイルより小さくても、凹凸模様を形成で
きる。なお、連続塗装ラインで凹凸模様の発生する位置
は乾燥炉の入側となる。Since the water repellent is solid at room temperature, it can be dispersed in the paint. Further, even when the coating is applied at room temperature, the water repellent is not melted, so that no uneven pattern is generated on the wet coating film, and the coating film is flat. However, when the wet coating is heated to a temperature higher than the melting temperature of the water repellent during drying, the water repellent is melted, exerts a water repellent action, and repels undried paint existing around the water repellent. . Therefore, an uneven pattern is formed on the wet coating film, and the wet coating film is dried and cured in that state. When an uneven pattern is formed on the wet coating, the wet coating is heated to a temperature higher than the melting temperature of the water repellent,
The fluidity of the coating film is higher than that at room temperature, and an uneven pattern can be formed even if the water repellent action of the water repellent is smaller than that of silicone oil. In addition, the position where the uneven pattern occurs in the continuous coating line is on the entrance side of the drying furnace.
【０００８】溶融温度が常温より高く、溶融後ウェット
塗膜に対して撥水作用を発揮する撥水剤としては、ステ
アリン酸塩を挙げることができる。安価で安全なステア
リン酸塩には、Ｎａ塩（融点２８８℃）、Ｋ塩（同３５
３℃）、Ｚｎ塩（同１４０℃）、Ｐｂ塩（同１１３〜１
１４℃）、Ｍｎ塩（同１０５℃）、Ｃｏ塩（同７３〜７
５℃）などの金属塩があるが、溶融温度が塗料樹脂の分
解温度以下のものを使用する必要がある。なお、Ｐｂ塩
は塗膜の乾燥温度が高い場合、黄変するので、塗料がク
リヤ−、白色もしくは淡色である場合は使用を避けるの
が好ましい。As a water repellent which has a melting temperature higher than room temperature and exerts a water repellent action on a wet coating film after melting, there can be mentioned a stearic acid salt. Inexpensive and safe stearates include Na salt (melting point 288 ° C.) and K salt (35
3 ° C.), Zn salt (140 ° C.), Pb salt (113-1)
14 ° C), Mn salt (105 ° C), Co salt (73-7 °)
5 ° C.), but it is necessary to use one having a melting temperature lower than the decomposition temperature of the coating resin. In addition, since the Pb salt turns yellow when the drying temperature of the coating film is high, it is preferable to avoid using the Pb salt when the coating material is clear, white or pale.
【０００９】撥水剤にステアリン酸塩を使用した場合、
その添加量は塗料固形分の０.１〜５.０重量％にするの
が好ましい。添加量が０.１重量％未満であると、クレ
−タ−状のはじきは発生するものの、はじきの間隔が開
き過ぎて、分布がまばらになるため、はじき相互の押し
合いがなく、縁部が山状にならない。このため、立体感
に乏しく、美麗な模様にならない。一方、５.０重量％
を超えると、はじきが過密になり、しかも、相互に押し
合うため、凹凸は極めて微細になり、模様と認識されな
くなる。When a stearate is used as a water repellent,
The addition amount is preferably 0.1 to 5.0% by weight of the solid content of the paint. If the added amount is less than 0.1% by weight, creter-like repelling occurs, but the repelling interval is too wide and the distribution is sparse, so that there is no repulsion between the repelling members and the edge is not formed. Does not form a mountain. For this reason, a three-dimensional impression is poor and a beautiful pattern is not obtained. On the other hand, 5.0% by weight
If the number exceeds the threshold value, the repelling becomes excessively dense, and furthermore, the repelling is pressed against each other, so that the irregularities become extremely fine and are not recognized as a pattern.
【００１０】この塗料を使用した塗装製品は、被塗装材
に撥水剤添加塗料を直接塗装すると、塗膜の凹部耐食性
が劣るので、下塗り塗装を施して、硬化させた後、その
上に撥水剤添加塗料を上塗り塗装として塗装するのが好
ましい。また、このように予め下塗り塗装を施すように
すると、下塗り塗装と上塗り塗装とで色調や光沢などの
異なる柄模様を形成でき、模様の多様化を図ることがで
きる。なお、被塗装材に塗装した撥水剤添加塗料は焼付
乾燥炉中で炉温により一時的に粘度が低下して、凹凸模
様の形成を容易にするので、塗料粘度は敢えて低くする
必要はなく、通常の塗料と同程度でよい。模様の大きさ
は撥水剤の添加量と塗布量により決定される。上塗り塗
装後は撥水剤の溶融温度以上、塗料樹脂の分解温度未満
で実施する。[0010] In a coated product using this coating, if a coating material containing a water repellent is directly applied to the material to be coated, the corrosion resistance of the coating film to the recesses is inferior. It is preferable to apply the liquid additive-added paint as a top coat. In addition, when the undercoat is applied in advance in this manner, a pattern having different color tone and gloss can be formed between the undercoat and the overcoat, and the patterns can be diversified. In addition, the water-repellent additive paint applied to the material to be coated temporarily decreases its viscosity in a baking drying oven depending on the furnace temperature, and facilitates the formation of an uneven pattern, so that the paint viscosity does not need to be intentionally reduced. , The same as that of a normal paint. The size of the pattern is determined by the amount of the water repellent added and the amount applied. After top coating, the coating is performed at a temperature equal to or higher than the melting temperature of the water repellent and lower than the decomposition temperature of the coating resin.
【００１１】[0011]
【実施例】ロ−ルコ−ト法の２コ−ト２ベ−ク連続塗装
ラインにて、溶融亜鉛めっき鋼帯（０.２７ｍｍ）に常
法により前処理を施して、ポリエステル系樹脂の下塗り
塗料（薄茶色）を乾燥塗膜厚で７μｍになるように塗装
し、ウェット塗膜を乾燥させた後、種々のステアリン酸
塩を０.１〜０.５重量％添加したポリエステル系樹脂上
塗り塗料（濃茶色、粘度３５０〜４００ｃｐ）を乾燥塗
膜厚で１０μｍになるように塗装して、乾燥した。ライ
ンスピ−ドは６２ｍ／min、上塗り塗料の乾燥は最高到
達板温２３０℃で実施した。表１に塗装したステアリン
酸塩添加塗料と得られた塗装鋼板の塗膜凹凸模様状態を
示す。EXAMPLE A hot-dip galvanized steel strip (0.27 mm) was pretreated by a conventional method in a two-coat two-bake continuous coating line of a roll coating method, and was then primed with a polyester resin. A paint (light brown) is applied to a dry film thickness of 7 μm, and after drying the wet film, a polyester resin top coat containing 0.1 to 0.5% by weight of various stearates is added. (Dark brown, viscosity 350-400 cp) was applied to a dry film thickness of 10 μm and dried. The line speed was 62 m / min, and drying of the top coat was carried out at a maximum temperature of 230 ° C. Table 1 shows the state of the unevenness of the coating film of the coated stearate-added paint and the obtained coated steel sheet.
【００１２】[0012]
【表１】 [Table 1]
【００１３】[0013]
【発明の効果】以上のように、本発明の塗料は、ウェッ
ト塗膜が撥水剤の溶融温度以上に加熱されて、塗料粘度
が低くなった状態で撥水剤が塗膜にはじきを与えるので
あるから、撥水剤としてシリコ−ンオイルのような撥水
作用の大きいものを使用しなくてもはじきを与えること
ができ、ピンホ−ルが発生しない。また、塗料に撥水剤
を添加して塗膜に凹凸模様を形成するのであるから、塗
膜厚が薄くても凹凸模様の形成が可能で、模様の均一
性、再現性も安定している。As described above, in the paint of the present invention, the water repellent imparts repellency to the paint film in a state where the wet coating is heated to a temperature higher than the melting temperature of the water repellent and the paint viscosity becomes low. Therefore, repelling can be provided without using a water-repellent agent having a large water-repellent action such as silicone oil, and pinholes do not occur. In addition, since a water-repellent agent is added to the paint to form an uneven pattern on the coating film, the uneven pattern can be formed even if the coating film thickness is small, and the uniformity and reproducibility of the pattern are stable. .
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 力生 大阪府大阪市城東区鴫野西５丁目18番25号 大阪ワニス株式会内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Rikio Yamamoto 5-18-18 Shigino Nishi, Joto-ku, Osaka-shi, Osaka Inside the Osaka Varnish Stock Company
Claims (4)
分解温度より低く、溶融状態で撥水作用を発揮する撥水
剤を添加したことを特徴とする凹凸模様形成用塗料。An uneven pattern forming paint characterized by adding a water repellent having a melting temperature higher than room temperature and lower than a decomposition temperature of a coating resin and exhibiting a water repellent action in a molten state.
特徴とする請求項１に記載の凹凸模様形成用塗料。2. The uneven pattern forming paint according to claim 1, wherein the water repellent is a stearate.
形分の０.１〜５.０重量％であることを特徴とする請求
項２に記載の凹凸模様形成用塗料。3. The uneven pattern forming paint according to claim 2, wherein the content of the stearate in the paint is 0.1 to 5.0% by weight of the solid content of the paint.
化させた後、請求項１に記載の塗料を上塗り塗装して、
塗膜を撥水剤の溶融温度以上、樹脂の分解温度以下に加
熱し、乾燥することを特徴とする塗装製品の製造方法。4. An undercoat paint is applied to a material to be coated and cured, and then the paint according to claim 1 is overcoated.
A method for producing a coated product, comprising heating a coating film above the melting temperature of the water repellent and below the decomposition temperature of the resin, and drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9670297A JPH10279842A (en) | 1997-03-31 | 1997-03-31 | Coating material for forming irregular pattern and production of coated article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9670297A JPH10279842A (en) | 1997-03-31 | 1997-03-31 | Coating material for forming irregular pattern and production of coated article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10279842A true JPH10279842A (en) | 1998-10-20 |
Family
ID=14172103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9670297A Pending JPH10279842A (en) | 1997-03-31 | 1997-03-31 | Coating material for forming irregular pattern and production of coated article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10279842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009051921A (en) * | 2007-08-27 | 2009-03-12 | Nagoya City | Water repellent material, water repellent film forming method using the same, and water repellent coating composition |
| JP2012007099A (en) * | 2010-06-25 | 2012-01-12 | Nagoya City | Water-repellent composition and method for producing substrate with water-repellent layer |
-
1997
- 1997-03-31 JP JP9670297A patent/JPH10279842A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009051921A (en) * | 2007-08-27 | 2009-03-12 | Nagoya City | Water repellent material, water repellent film forming method using the same, and water repellent coating composition |
| JP2012007099A (en) * | 2010-06-25 | 2012-01-12 | Nagoya City | Water-repellent composition and method for producing substrate with water-repellent layer |
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