JP2001295069A - Decorative resin coated metallic sheet - Google Patents
Decorative resin coated metallic sheetInfo
- Publication number
- JP2001295069A JP2001295069A JP2000103783A JP2000103783A JP2001295069A JP 2001295069 A JP2001295069 A JP 2001295069A JP 2000103783 A JP2000103783 A JP 2000103783A JP 2000103783 A JP2000103783 A JP 2000103783A JP 2001295069 A JP2001295069 A JP 2001295069A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- polytetrafluoroethylene
- metal plate
- pattern layer
- polyether sulfone
- 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
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、意匠樹脂被覆金属
板に関し、とくに加熱調理器具として使用される耐熱性
ふっ素樹脂被覆金属板のその樹脂被覆に意匠性を付与し
た点に特徴を有する金属板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal plate coated with a design resin, and more particularly, to a metal plate coated with a heat-resistant fluororesin used as a cooking appliance, the design being given to the resin coating. It is about.
【０００２】[0002]
【従来の技術】一般に、ふっ素樹脂は、耐熱性、耐食
性、耐汚染性、非粘着性、不燃性などの性質に優れてお
り、その性質を利用してふっ素樹脂被覆金属板が製造さ
れており、その金属板は、加熱調理器具をはじめとする
各種厨房用品などとして使用されている。しかし近年で
は、キッチン全体に意匠性を付与する傾向があり、例え
ば、ガステーブル天板については、従来のような単色の
ふっ素樹脂塗装から、意匠性を付与したふっ素樹脂被覆
金属板の採用が望まれるようになっている。2. Description of the Related Art In general, fluororesin has excellent properties such as heat resistance, corrosion resistance, stain resistance, non-adhesion, and nonflammability, and a fluororesin-coated metal plate is manufactured by utilizing such properties. The metal plate is used as various cooking utensils such as cooking utensils. However, in recent years, there has been a tendency to impart design properties to the entire kitchen. For example, for a gas table top plate, it has been desired to adopt a fluororesin-coated metal plate to which design properties have been applied, instead of a conventional single-color fluororesin coating. It is supposed to be.
【０００３】このような要望に対し、従来、例えば特開
平10−86274 号公報や特開平10−264295号公報等では、
ふっ素樹脂塗装鋼板の最表層もしくは中間層に、グラビ
アオフセット印刷，スクリーン印刷，フレキソ印刷等で
意匠を付与する方法が提案されている。しかし、これら
の方法では、意匠毎に高価な版ロールを作製する必要が
あり、またこれらの版ロールは傷付きやすいこと、予備
ロールを常備しなければならないこととが相侯って、製
品コストを押し上げるという問題があった。その他、特
開平11−76934 号公報には、ふっ素樹脂塗装鋼板の最表
層にスプレー等でふっ素樹脂もしくはふっ素樹脂と耐熱
樹脂の混合着色塗料を吹き付けて、不連続な模様を表面
に付与する方法が開示されている。この方法は、スプレ
ー等で不連続な模様を形成するので、設備および製品コ
ストを低く抑えられる利点はあるが、ベースの着色樹脂
層上に不連続な模様を形成したものであるから、統一性
を欠くために、意匠性の点で改善の余地が残されてい
た。さらに、特開平11−77895 号公報には、耐熱樹脂塗
装鋼板の表面に、スプレー等の方法によって耐熱樹脂着
色塗料を吹き付けて、不連続な模様を形成し、さらにそ
の上にフツ素樹脂と耐熱樹脂の混合クリア塗膜を形成す
る方法が提案されている。この方法は、最表層を前記混
合クリア塗膜で覆うことによって、耐熱性と非粘着性と
を付与すると共に、下層の模様を隠蔽しない範囲内で、
前記クリア塗膜中に微量の金属粉末や着色顔料を添加し
た点に特徴がある。しかし、この方法については、金属
粉末や着色顔料を添加したクリア塗膜の場合は、下地の
模様が見えにくくなり、意匠性が低下するという問題が
あった。In response to such a demand, conventionally, for example, JP-A-10-86274 and JP-A-10-264295 disclose,
There has been proposed a method of giving a design to the outermost layer or intermediate layer of a fluororesin-coated steel sheet by gravure offset printing, screen printing, flexographic printing, or the like. However, in these methods, it is necessary to produce expensive plate rolls for each design, and these plate rolls are susceptible to being damaged and the necessity of always having spare rolls, which results in a low product cost. There was a problem of pushing up. In addition, JP-A-11-76934 discloses a method of spraying a fluororesin or a mixed coloring paint of a fluororesin and a heat-resistant resin on the outermost surface of a fluororesin-coated steel sheet by spraying or the like to impart a discontinuous pattern to the surface. It has been disclosed. This method has an advantage that equipment and product costs can be kept low because a discontinuous pattern is formed by spraying or the like, but since the discontinuous pattern is formed on the base colored resin layer, uniformity is obtained. This leaves room for improvement in terms of design. Further, JP-A-11-77895 discloses that a heat-resistant resin colored paint is sprayed on the surface of a heat-resistant resin-coated steel sheet by a method such as spraying to form a discontinuous pattern, and a fluorine resin and a heat-resistant resin are further formed thereon. A method of forming a mixed clear coating film of a resin has been proposed. This method, by covering the outermost layer with the mixed clear coating, while providing heat resistance and non-adhesiveness, as long as the pattern of the lower layer is not hidden,
It is characterized in that a small amount of metal powder or coloring pigment is added to the clear coating film. However, in this method, in the case of a clear coating film to which a metal powder or a coloring pigment is added, there is a problem in that the underlying pattern is difficult to see and the design property is deteriorated.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、従来
技術が抱える上述したそれぞれの問題を解決できる技術
を開発し提案することにあり、とくにふっ素樹脂被覆鋼
板の表面に、密着性に優れかつ意匠性の高い層を付与す
る技術を確立することにある。SUMMARY OF THE INVENTION An object of the present invention is to develop and propose a technique capable of solving each of the above-mentioned problems of the prior art. Particularly, the present invention has excellent adhesion to the surface of a fluororesin-coated steel sheet. Another object of the present invention is to establish a technique for providing a layer having a high design property.
【０００５】[0005]
【課題を解決するための手段】上記目的を実現するため
に鋭意検討した結果、発明者らは、意匠性が低いこと、
アンダーコート (下塗り) とトップコート (上塗り) と
の密着が悪いという従来技術が抱えている課題に対して
は、以下に述べるような手段が有効であるとの知見を得
て、本発明に想到した。即ち、本発明の基本的な構成
は、金属板の表面に、ポリエーテルスルホン樹脂とポリ
テトラフルオロエチレン樹脂とを主成分とする樹脂によ
る着色下塗り被膜を設け、その下塗り被膜の上に、ポリ
テトラフルオロエチレン樹脂とポリエーテルスルホン樹
脂を主成分とする樹脂による透光性上塗り被膜を設けて
なり、かつその上塗り被膜の表層部内に、ポリテトラフ
ルオロエチレン樹脂、パーフルオロアルキルビニルエー
テル−テトラフルオロエチレン共重合体のうちの少なく
とも１種を主成分とする樹脂による最表面着色模様層を
斑点状に形成してなる意匠樹脂被覆金属板にある。Means for Solving the Problems As a result of intensive studies to achieve the above object, the inventors have found that the design is low,
In order to solve the problem of the prior art that the adhesion between the undercoat (undercoat) and the topcoat (overcoat) is poor, the following measures have been found to be effective, and the present invention has been conceived. did. That is, the basic configuration of the present invention is to provide a colored undercoat film made of a resin containing a polyether sulfone resin and a polytetrafluoroethylene resin as main components on the surface of a metal plate, and a polytetrafluoroethylene film on the undercoat film. A translucent top coat made of a resin mainly composed of a fluoroethylene resin and a polyether sulfone resin is provided, and a polytetrafluoroethylene resin, a perfluoroalkylvinyl ether-tetrafluoroethylene copolymer is provided in the surface layer of the top coat. The present invention is a design resin-coated metal plate having a spot-shaped outermost colored pattern layer formed of a resin containing at least one of the coalesced components as a main component.
【０００６】なお、本発明における意匠樹脂被覆金属板
では、最表面着色模様層が、ポリテトラフルオロエチレ
ン樹脂、パーフルオロアルキルビニルエーテル−テトラ
フルオロエチレン共重合体のうち少なくとも１種と、ポ
リエーテルスルホン樹脂、ポリフェニルスルフィド樹
脂、ポリアミドイミド樹脂のうちの少なくとも１種との
混合物を主成分とする樹脂によって斑点状に形成されて
いることが好ましい。In the design resin-coated metal plate of the present invention, the outermost colored pattern layer comprises at least one of a polytetrafluoroethylene resin and a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer, and a polyether sulfone resin. It is preferable that the resin be formed in a spot-like shape by using a resin mainly containing a mixture with at least one of polyphenyl sulfide resin and polyamide imide resin.
【０００７】また、本発明は、金属板の表面に、ポリエ
ーテルスルホン樹脂とポリテトラフルオロエチレン樹脂
とを主成分とする樹脂による着色下塗り被膜を設け、そ
の下塗り被膜の上に、ポリテトラフルオロエチレン樹脂
とポリエーテルスルホン樹脂を主成分とする樹脂による
透光性上塗り被膜を設けてなり、かつ前記下塗被膜と上
塗り被膜との境界には、ポリエーテルスルホン樹脂、ポ
リフェニルスルフィド樹脂、ポリアミドイミド樹脂のう
ちの少なくとも１種を主成分とする樹脂による中間着色
模様層が、両被膜に跨がって斑点状に分散形成されてい
ると共に、前記上塗り被膜の表層部内にも、ポリテトラ
フルオロエチレン樹脂、パーフルオロアルキルビニルエ
ーテル−テトラフルオロエチレン共重合体のうちの少な
くとも１種を主成分とする樹脂による最表面着色模様層
を斑点状に形成してなる意匠樹脂被覆金属板に関するも
のである。Further, according to the present invention, a colored undercoat film made of a resin containing a polyether sulfone resin and a polytetrafluoroethylene resin as main components is provided on the surface of a metal plate, and a polytetrafluoroethylene film is formed on the undercoat film. A resin and a translucent top coat made of a resin containing a polyether sulfone resin as a main component are provided, and a boundary between the undercoat and the top coat is formed of a polyether sulfone resin, a polyphenyl sulfide resin, or a polyamide imide resin. An intermediate colored pattern layer of a resin containing at least one of them as a main component is dispersedly formed in a spot-like manner over both films, and also in the surface layer portion of the overcoat film, a polytetrafluoroethylene resin, At least one of perfluoroalkyl vinyl ether-tetrafluoroethylene copolymers The outermost colored pattern layer by resin and relates to design a resin-coated metal plate obtained by forming a patchy.
【０００８】さらにまた、本発明は、金属板の表面に、
ポリエーテルスルホン樹脂とポリテトラフルオロエチレ
ン樹脂とを主成分とする樹脂による着色下塗り被膜を設
け、その下塗り被膜の上に、ポリテトラフルオロエチレ
ン樹脂とポリエーテルスルホン樹脂を主成分とする樹脂
による透光性上塗り被膜を設けてなり、かつ前記下塗り
被膜と上塗り被膜との境界には、ポリエーテルスルホン
樹脂、ポリフェニルスルフィド樹脂、ポリアミドイミド
樹脂のうちの少なくとも１種と、ポリテトラフルオロエ
チレン樹脂、パーフルオロアルキルビニルエーテル−テ
トラフルオロエチレン共重合体のうちの少なくとも１種
との混合物を主成分とする樹脂による中間着色模様層
が、両被膜に跨がって斑点状に分散形成されていると共
に、前記上塗り被膜の表層部内に、ポリテトラフルオロ
エチレン樹脂、パーフルオロアルキルビニルエーテル−
テトラフルオロエチレン共重合体のうちの少なくとも１
種を主成分とする樹脂による最表面着色模様層を斑点状
に形成してなる意匠樹脂被覆金属板に関するものであ
る。[0008] Furthermore, the present invention provides a method for manufacturing a semiconductor device comprising:
A colored undercoat made of a resin containing a polyethersulfone resin and a polytetrafluoroethylene resin as a main component is provided, and light is transmitted on the undercoat film using a resin containing a polytetrafluoroethylene resin and a polyethersulfone resin as a main component. At least one of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamideimide resin, a polytetrafluoroethylene resin, An intermediate colored pattern layer made of a resin mainly containing a mixture with at least one of an alkyl vinyl ether-tetrafluoroethylene copolymer is dispersedly formed in a spot-like manner over both films, and the overcoat is formed. A polytetrafluoroethylene resin, par Le Oro alkyl vinyl ether -
At least one of the tetrafluoroethylene copolymers
The present invention relates to a design resin-coated metal plate having a spot-shaped outermost colored pattern layer made of a resin containing a seed as a main component.
【０００９】なお、上記の各本発明においては、 最表面着色模様層が、ポリテトラフルオロエチレン
樹脂、パーフルオロアルキルビニルエーテル−テトラフ
ルオロエチレン共重合体のうち少なくとも１種と、ポリ
エーテルスルホン樹脂、ポリフェニルスルフィド樹脂、
ポリアミドイミド樹脂のうちの少なくとも１種との混合
物を主成分とする樹脂によって斑点状に形成されている
こと、 上記最表面着色模様層は、個々の斑点模様の大きさ
が、平均径で0.5 〜10mm、被覆面積率で 5〜70％に相当
するものであること、 上記中間着色模様層は、個々の斑点模様の大きさ
が、平均径で0.5 〜10mm、被覆面積率で 5〜90％に相当
するものであること、 上記着色下塗り被膜中のポリエーテルスルホン樹脂
とポリテトラフルオロエチレン樹脂の比率が、ポリエー
テルスルホン樹脂 100重量部に対し、ポリテトラフルオ
ロエチレン樹脂が 100重量部以下の割合であること、 上記透光性上塗り被膜中のポリテトラフルオロエチ
レン樹脂とポリエーテルスルホン樹脂の比率が、ポリテ
トラフルオロエチレン樹脂 100重量部に対し、ポリエー
テルスルホン樹脂を 100重量部以下、着色顔料を 100重
量部以下の割合で配合され、膜厚が20μｍ以下であるこ
と、 が好ましい実施の態様となる。In the present invention, the outermost colored pattern layer comprises at least one of a polytetrafluoroethylene resin, a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer, a polyether sulfone resin, and a polyether sulfone resin. Phenyl sulfide resin,
The outermost colored pattern layer is formed in a spot shape by a resin mainly containing a mixture with at least one kind of polyamide imide resin. The intermediate colored pattern layer has an average spot diameter of 0.5 to 10 mm and an area coverage of 5 to 90%. That is, the ratio of the polyether sulfone resin and the polytetrafluoroethylene resin in the colored undercoating film is 100 parts by weight of the polyether sulfone resin, and the ratio of the polytetrafluoroethylene resin is 100 parts by weight or less. The ratio of the polytetrafluoroethylene resin to the polyethersulfone resin in the light-transmitting top coat is 100 parts by weight of the polytetrafluoroethylene resin, and A preferred embodiment is that the tersulfone resin is blended in an amount of 100 parts by weight or less and the coloring pigment in an amount of 100 parts by weight or less, and the film thickness is 20 μm or less.
【００１０】[0010]
【発明の実施の形態】以下に、本発明に係る意匠化耐熱
性ふっ素樹脂被覆金属板 (以下、「鋼板」の例で述べ
る) の構成の詳細について、図１および図２を参照して
説明する。本発明に係る意匠化耐熱性ふっ素樹脂被覆金
属板 (意匠樹脂被覆鋼板) は、鋼板の表面に、アンダー
コートとしてまず、ポリエーテルスルホン樹脂とポリテ
トラフルオロエチレン樹脂を主成分とする着色下塗り被
膜２を塗布形成し、その下塗り被膜２の上に、トップコ
ートとしてポリテトラフルオロエチレン樹脂とポリエー
テルスルホン樹脂を主成分とする透光性上塗り被膜３を
塗布形成し、さらにその上塗り被膜３の表層部中に、最
表層の一部を形造る層として、ポリテトラフルオロエチ
レン樹脂、パーフルオロアルキルビニルエーテル−テト
ラフルオロエチレン共重合体のうち少なくとも１種を主
成分とする樹脂による最表面着色模様の層５を、斑点状
に形成した樹脂積層構造を基本的な構造とするものであ
る。BEST MODE FOR CARRYING OUT THE INVENTION The details of the design of a heat-resistant fluororesin-coated metal plate (hereinafter referred to as an example of "steel plate") according to the present invention will be described with reference to FIGS. I do. The designed heat-resistant fluororesin-coated metal sheet (designed resin-coated steel sheet) according to the present invention comprises, as an undercoat, a colored undercoat film 2 containing a polyether sulfone resin and a polytetrafluoroethylene resin as main components on the surface of the steel sheet. And a light-transmitting top coat 3 mainly composed of a polytetrafluoroethylene resin and a polyether sulfone resin as a top coat is formed on the undercoat 2, and a surface layer portion of the top coat 3 is further formed. Among them, as a layer forming a part of the outermost layer, a layer 5 having an outermost surface colored pattern made of a resin containing at least one of polytetrafluoroethylene resin and perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer as a main component Is a basic structure of a resin laminated structure formed in a spot shape.
【００１１】かかる樹脂被覆鋼板の他の実施形態は、上
記最表面着色模様層５が、ポリテトラフルオロエチレン
樹脂、パ−フルオロアルキルビニルエーテル−テトラフ
ルオロエチレン共重合体のうちの少なくとも１種と、ポ
リエーテルスルホン樹脂、ポリフェニルスルフィド樹
脂、ポリアミドイミド樹脂のうちの少なくとも１種との
混合物を主成分とする樹脂によって斑点状に形成された
ものが考えられる。In another embodiment of such a resin-coated steel sheet, the outermost colored pattern layer 5 comprises at least one of a polytetrafluoroethylene resin and a perfluoroalkylvinylether-tetrafluoroethylene copolymer, It is conceivable that the resin is formed in a spot shape by a resin mainly containing a mixture with at least one of an ether sulfone resin, a polyphenyl sulfide resin and a polyamideimide resin.
【００１２】本発明のさらに他の実施形態としては、図
２に示すような被膜積層構造のものがある。この例は、
金属板の表面に、ポリエーテルスルホン樹脂とポリテト
ラフルオロエチレン樹脂を主成分とした着色下塗り被膜
２を形成し、その下塗り被膜２と上塗り被膜３との境界
部分に、この両被膜２，３の両方に跨がるように設けら
れた中間着色模様層４が形成される。即ち、この中間着
色模様層４は、ポリエーテルスルホン樹脂、ポリフェニ
ルスルフィド樹脂、ポリアミドイミド樹脂のうちの少な
くとも１種を主成分とする樹脂による斑点状の模様層で
ある。As still another embodiment of the present invention, there is a film laminated structure as shown in FIG. This example
On the surface of the metal plate, a colored undercoat 2 mainly composed of a polyether sulfone resin and a polytetrafluoroethylene resin is formed, and the boundary between the undercoat 2 and the overcoat 3 is coated with the two coats 2 and 3. The intermediate colored pattern layer 4 provided so as to straddle both is formed. That is, the intermediate colored pattern layer 4 is a spot-shaped pattern layer made of a resin containing at least one of polyethersulfone resin, polyphenylsulfide resin, and polyamideimide resin as a main component.
【００１３】なお、この中間着色模様層４のの樹脂成分
としては他に、ポリエーテルスルホン樹脂、ポリフェニ
ルスルフィド樹脂、ポリアミドイミド樹脂のうちの少な
くとも１種と、ポリテトラフルオロエチレン樹脂、パー
フルオロアルキルビニルエーテル−テトラフルオロエチ
レン共重合体のうちの少なくとも１種との混合物からな
る樹脂を主成分とするものを、下塗り被膜２と上塗り被
膜３との境界部に、両層にそれぞれ食い込むような形で
分散した斑点状模様としたものでもよい。そして、この
斑点状中間着色模様層４を含む前記下塗り被膜２の上
に、ポリテトラフルオロエチレン樹脂とポリエーテルス
ルホン樹脂を主成分とする樹脂による透光性上塗り被膜
３を重合被成し、そして、この上塗り被膜３の表層部中
にも埋設するような状態で、斑点状の最表面着色模様層
５が設けられている。即ち、この最表面着色模様層５
は、ポリテトラフルオロエチレン樹脂，パーフルオロア
ルキルビニルエーテル−テトラフルオロエチレン共重合
体のうちの少なくとも１種を主成分とする樹脂による斑
点状の着色模様層であり、上塗り被膜４中に埋没してい
るのが特徴である。The resin component of the intermediate colored pattern layer 4 includes at least one of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamide imide resin, and a polytetrafluoroethylene resin, a perfluoroalkyl resin. A resin mainly composed of a mixture of at least one of vinyl ether-tetrafluoroethylene copolymers is applied to the boundary between the undercoat 2 and the overcoat 3 in such a manner as to bite into both layers. It may be a dispersed spot-like pattern. Then, a translucent top coat 3 made of a resin mainly composed of polytetrafluoroethylene resin and polyether sulfone resin is formed on the undercoat 2 including the spotted intermediate colored pattern layer 4 by polymerization, and A spotted outermost colored pattern layer 5 is provided so as to be buried also in the surface layer portion of the overcoat 3. That is, the outermost colored pattern layer 5
Is a speckled colored pattern layer made of a resin containing at least one of polytetrafluoroethylene resin and perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer as a main component, and is buried in the top coat 4. It is characteristic.
【００１４】また、この例における前記最表面着色模様
層５の樹脂成分としては他に、ポリテトラフルオロエチ
レン樹脂，バーフルオロアルキルビニルエーテル−テト
ラフルオロエチレン共重合体のうち少なくとも１種と、
ポリエーテルスルホン樹脂，ポリフェニルスルフィド樹
脂，ポリアミドイミド樹脂のうちの少なくとも１種との
混合物からなる樹脂を主成分とするものが用いられる。In addition, as the resin component of the outermost colored pattern layer 5 in this example, at least one of a polytetrafluoroethylene resin, a verfluoroalkyl vinyl ether-tetrafluoroethylene copolymer,
A resin whose main component is a resin composed of a mixture with at least one of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamideimide resin is used.
【００１５】図２に示す実施形態の意匠樹脂被覆鋼板
は、斑点状すなわち粒状の中間着色模様層４が、下塗り
被膜２と上塗り被膜３との境界部に、両被膜２，３中に
ともに食い込むように点在しているので、接着界面の拡
大を通じて該被膜２，３同士の接着性を向上させるよう
に機能する (接着界面が大きくなると共に、樹脂の流動
が遮られることにより) ため、意匠樹脂積層構造の互い
の密着力が著しく向上する。In the design resin-coated steel sheet of the embodiment shown in FIG. 2, the spot-shaped or granular intermediate colored pattern layer 4 penetrates into the boundary between the undercoat 2 and the overcoat 3 in both the coats 2 and 3. Since it is scattered as described above, it functions to improve the adhesion between the coatings 2 and 3 through the expansion of the bonding interface (by increasing the bonding interface and blocking the flow of the resin). The adhesion between the resin laminate structures is remarkably improved.
【００１６】このような樹脂積層構造とすることによ
り、着色下塗り被膜２、透光性上塗り被膜３、最表面着
色模様層５および中間着色模様層４が互いに機能的に組
み合わされて、鮮明で深みのある意匠を発現する耐熱性
のふっ素樹脂被覆鋼板が得られるのである。With such a resin laminated structure, the colored undercoat 2, the translucent overcoat 3, the outermost colored pattern layer 5, and the intermediate colored pattern layer 4 are functionally combined with each other to provide a clear and deep Thus, a heat-resistant fluororesin-coated steel sheet exhibiting a distinctive design can be obtained.
【００１７】ここで、本発明において用いられる金属板
１としては、特に限定する必要はないが、冷延鋼板、溶
融亜鉛めっき鋼板、５％Al−Znめっき鋼板（ガルファ
ン：GF）、55％Al−Znめっき鋼板（ガルバリウム：G
L）、溶融Alめっき鋼板、ステンレス鋼板、ティンフリ
ー鋼板等を用いることができ、これらの金属板の表面
は、必要に応じて脱脂処理、リン酸塩処理、塗布型クロ
メート処理などの処理、もしくはこれらを組み合わせた
処理を施してもよい。Here, the metal sheet 1 used in the present invention is not particularly limited, but may be a cold-rolled steel sheet, a hot-dip galvanized steel sheet, a 5% Al-Zn plated steel sheet (galfan: GF), a 55% Al -Zn plated steel sheet (Galvalume: G
L), hot-dip Al-plated steel plate, stainless steel plate, tin-free steel plate, etc. can be used, and the surface of these metal plates may be treated as necessary, such as degreasing treatment, phosphate treatment, coating type chromate treatment, or You may perform the process which combined these.
【００１８】次に、上記着色下塗り被膜２は、ポリエー
テルスルホン樹脂とポリテトラフルオロエチレン樹脂に
て構成したものが用いられるが、下地鋼板との良好な密
着性を確保するために、その比率が、ポリエーテルスル
ホン樹脂 100重量部に対し、ポリテトラフルオロエチレ
ン樹脂を 0超 100重量部以下、好ましくは75重量部以下
の割合で混合した樹脂を塗布して形成する。また、この
着色下塗り被膜２は、金属板１を隠蔽するとともに、斑
点状の中間着色模様層４および斑点状の最表面着色模様
層５および透光性上塗り被膜３との組合せの下で所定の
意匠を発現するベース色となるため、耐熱性に優れた着
色顔料を配合するとよい。その着色顔料としては、アル
ミフレーク、酸化チタン系顔料、カーボンブラック、酸
化クロム系や酸化鉄系の顔料等がある。さらに必要に応
じて、防錆顔料や体質顔料を添加してもよく、これら顔
料の添加量は、下地との密着性を阻害しない範囲であれ
ばよく、特に限定されるものではない。なお、この着色
下塗り被膜２の膜厚は、特に限定されるものではない
が、乾燥膜厚で 2〜20μｍとなるように、ロールコート
法やカーテンフローコート法等の通常の塗装方法で鋼板
表面に塗布すればよく、乾燥温度も特に限定されるもの
ではないが、板温で250℃以上あることが好ましい。Next, as the colored undercoat 2, a layer composed of a polyether sulfone resin and a polytetrafluoroethylene resin is used. And a resin in which a polytetrafluoroethylene resin is mixed in a ratio of more than 0 to 100 parts by weight, preferably 75 parts by weight or less with respect to 100 parts by weight of the polyether sulfone resin. The colored undercoat film 2 conceals the metal plate 1 and has a predetermined shape under a combination of the spotted intermediate colored pattern layer 4, the spotted outermost colored pattern layer 5 and the translucent topcoat film 3. A color pigment having excellent heat resistance may be blended because the base color exhibits a design. Examples of the coloring pigment include aluminum flake, titanium oxide pigment, carbon black, chromium oxide pigment and iron oxide pigment. Further, if necessary, a rust-preventive pigment or an extender pigment may be added, and the amount of these pigments is not particularly limited as long as it does not impair the adhesion to the base. The thickness of the colored undercoating film 2 is not particularly limited, but may be 2 to 20 μm in dry film thickness by a normal coating method such as a roll coating method or a curtain flow coating method. The drying temperature is not particularly limited, but is preferably 250 ° C. or more at the plate temperature.
【００１９】次に、上記透光性上塗り被膜３は、上述し
たように、ポリテトラフルオロエチレン樹脂とポリエー
テルスルホン樹脂にて構成されたものが用いられるが、
アンダーコートである前記着色下塗り被膜２との良好な
密着性を確保し、かつガステーブル天板等で使用される
場合にはさらに非粘着性を必要とするため、その比率
は、ポリテトラフルオロエチレン樹脂 100重量部に対
し、ポリエーテルスルホン樹脂を 0重量部超 100重量部
以下、好ましくは60重量部以下の割合で混合することが
好ましい。また、この透光性上塗り被膜３は、ベース色
である着色下塗り被膜２と、とくに図２に示す実施形態
の場合は、斑点状の中間着色模様層４との組合せによっ
て所望の意匠を発現するようになっていることから、ポ
リテトラフルオロエチレン樹脂 100重量部に対し、着色
顔料が 100重量部以下、好ましくは75重量部以下、かつ
膜厚が20μｍ以下、好ましくは15μｍ以下に調整するこ
とが好ましい。また、透光性を得るために、この上塗り
被膜３は、着色顔料の添加量は、膜厚が厚い場合は少な
くすることが好ましい。ここで、透光性というのは、完
全なクリア塗膜、もしくは着色顔料、金属粉末、パール
粉、マイカ粉等を含んでいても、いわゆる着色下塗り被
膜２を完全に隠蔽するものでなければよい。また、この
透光性上塗り被膜膜３は、ロールコート法、カーテンフ
ローコート法等の通常の塗装方法で鋼板表面に塗布すれ
ばよく、乾燥温度は、板温でポリテトラフルオロエチレ
ン樹脂の融点 325℃以上にすることが好ましい。Next, as described above, the translucent top coat 3 is composed of a polytetrafluoroethylene resin and a polyether sulfone resin.
In order to ensure good adhesion to the undercoating colored undercoat film 2 and further require non-adhesion when used in a gas table top plate, the ratio is set to polytetrafluoroethylene. It is preferable that the polyethersulfone resin is mixed in a proportion of more than 0 part by weight and 100 parts by weight or less, preferably 60 parts by weight or less with respect to 100 parts by weight of the resin. The translucent top coat 3 develops a desired design by a combination of the colored undercoat 2 as a base color and, in the case of the embodiment shown in FIG. From the above, based on 100 parts by weight of the polytetrafluoroethylene resin, the color pigment is adjusted to 100 parts by weight or less, preferably 75 parts by weight or less, and the film thickness is 20 μm or less, preferably 15 μm or less. preferable. In addition, in order to obtain translucency, it is preferable that the amount of the coloring pigment added to the top coat 3 is small when the film thickness is large. Here, the term “translucent” means that it does not completely cover the so-called colored undercoat film 2 even if it contains a completely clear coating film or a colored pigment, metal powder, pearl powder, mica powder, or the like. . The translucent top coat film 3 may be applied to the surface of the steel sheet by a normal coating method such as a roll coating method or a curtain flow coating method, and the drying temperature is set at the sheet temperature and the melting point of the polytetrafluoroethylene resin is 325. It is preferable that the temperature be equal to or higher than C.
【００２０】次に、上記中間着色模様層４は、上述した
ように、ポリエーテルスルホン樹脂、ポリフェニルスル
フィド樹脂、ポリアミドイミド樹脂のうちの少なくとも
１種の樹脂を主成分とする斑点状、すなわち、粒状の樹
脂が点在した着色模様である。また、この中間着色模様
層４の樹脂は、ポリエーテルスルホン樹脂、ポリフェニ
ルスルフィド樹脂、ポリアミドイミド樹脂のうちの少な
くとも１種とポリテトラフルオロエチレン樹脂、パーフ
ルオロアルキルビニルエーテル−テトラフルオロエチレ
ン共重合体のうちの少なくとも１種との混合物から構成
され、また最表面着色模様層５は、ポリテトラフルオロ
エチレン樹脂、パーフルオロアルキルビニルエーテル−
テトラフルオロエチレン共重合体のうちの少なくとも１
種、もしくはポリテトラフルオロエチレン樹脂、パーフ
ルオロアルキルビニルエーテル−テトラフルオロエチレ
ン共重合体のうち少の少なくとも１種とポリエーテルス
ルホン樹脂、ポリフェニルスルフィド樹脂，ポリアミド
イミド樹脂のうちの少なくとも１種との混合物から構成
される。ただし、これらの樹脂の配合比については、特
に限定されるものではない。Next, as described above, the intermediate colored pattern layer 4 has a spot-like shape containing at least one resin selected from the group consisting of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamideimide resin. It is a colored pattern in which granular resin is scattered. The resin of the intermediate colored pattern layer 4 is made of at least one of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamide imide resin and a polytetrafluoroethylene resin, a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer. The outermost colored pattern layer 5 is composed of a mixture with at least one of them, and the outermost colored pattern layer 5 is made of polytetrafluoroethylene resin, perfluoroalkyl vinyl ether-
At least one of the tetrafluoroethylene copolymers
Or a mixture of at least one of polytetrafluoroethylene resin and perfluoroalkylvinylether-tetrafluoroethylene copolymer with at least one of polyethersulfone resin, polyphenylsulfide resin and polyamideimide resin Consists of However, the mixing ratio of these resins is not particularly limited.
【００２１】上記中間着色模様層４および最表面着色模
様層５には、斑点状の意匠をより顕著に発現するため
に、上記樹脂中に耐熱性に優れた着色顔料を配合しても
よい。適用可能な着色顔料としては、アルミフレーク、
酸化チタン系、カーボンブラック、酸化クロム系、酸化
鉄系顔料等が用いられる。かかる中間着色模様層４およ
び最表面着色模様層５は、それぞれの位置に斑点状に付
着させるために、回転霧化式のスパッタ塗装装置やエア
ー式のスプレー塗装装置により、個々の粒子の形状は平
均径が 0.5〜10mmφ、好ましくは 0.5〜５mmφの大きさ
となるように、そして表面被覆率（即ち被覆面積率）が
中間着色模様層４の場合は５〜90％、好ましくは10〜70
％、最表面着色模様層５の場合は５〜70％、好ましくは
５〜50％となるように噴霧する。前記各模様層４，５
を、上記の形状にするには、塗料の粘度、固形分率を調
整することによって制御する。その具体的な制御方法と
しては、回転霧化式のスパッタ塗装装置の場合は、回転
数と吐出量を制御し、一方、エアー式のスプレー塗装装
置の場合は、エアー噴射圧力と先端ノズルの形状を調整
することによって制御することができる。とくに、中間
着色模様層４を、下塗り被膜２の上に、その一部が露出
(その露出部分は上塗り被膜３中に位置することとな
る) するように形成するには、その下塗り被膜の樹脂が
未だ軟質 (ウェット) 状態のうちに噴射塗装することが
肝要である。The intermediate colored pattern layer 4 and the outermost colored pattern layer 5 may be mixed with a heat-resistant coloring pigment in the resin in order to exhibit a speckled design more remarkably. Applicable color pigments include aluminum flake,
Titanium oxide-based, carbon black, chromium oxide-based, iron oxide-based pigments and the like are used. The intermediate colored pattern layer 4 and the outermost colored pattern layer 5 are spotted at their respective positions, and the shape of each particle is adjusted by a rotary atomization type sputter coating device or an air type spray coating device. The average diameter is 0.5 to 10 mmφ, preferably 0.5 to 5 mmφ, and the surface coverage (that is, the coverage area ratio) is 5 to 90%, preferably 10 to 70% in the case of the intermediate colored pattern layer 4.
%, 5 to 70% in the case of the outermost surface colored pattern layer 5, preferably 5 to 50%. Each of the pattern layers 4, 5
Is controlled by adjusting the viscosity and the solid content of the paint. As a specific control method, in the case of a rotary atomization type sputter coating apparatus, the number of revolutions and the discharge amount are controlled, while in the case of an air type spray coating apparatus, the air injection pressure and the shape of the tip nozzle are controlled. Can be controlled by adjusting. In particular, the intermediate coloring pattern layer 4 is partially exposed on the undercoat film 2.
In order to form such that the exposed portion is located in the top coat 3, it is important to spray-coat the resin of the undercoat while the resin is still in a soft (wet) state.
【００２２】着色下塗り被膜２もしくは透光性上塗り被
膜３上に塗布される、前記各模様層４，５の斑点模様の
大きさは、平均径にして0. 5〜10mmφの大きさとする。
この理由は、0.5 mmφ以下だと、鋼板表面の空気の流れ
によって、塗装斑が発生し、10mmφ以上だと非粘着性が
低下したり、着色模様部で塗膜の剥離が発生するためで
ある。一方、これら模様層４，５の被覆面積率は、５％
未満だと意匠感が乏しく、90もしくは70％以上だと非粘
着性が低下したり、塗膜の剥離が発生するためである。
この中間着色模様層４および最表面着色模様層５は、塗
装される着色下塗り被膜２もしくは透光性上塗り被膜３
が乾燥硬化した状態、または未乾燥のウェット状態のど
ちらでも構わないが、樹脂粒子埋没による物理的な密着
効果、あるいは工程上の手間を考えると、着色下塗り被
膜２もしくは透光性上塗り被膜３の樹脂が軟らかいウェ
ット状態のときに着色模様樹脂を塗装し、いっしょに乾
燥されることが好ましい。またその時の乾燥温度は、着
色下塗り被膜２もしくは透光性上塗り被膜３の乾燥温度
に準ずる。The size of the spot pattern of each of the pattern layers 4 and 5 applied on the colored undercoating film 2 or the translucent topcoating film 3 is 0.5 to 10 mmφ in average diameter.
The reason for this is that if the diameter is 0.5 mmφ or less, uneven coating occurs due to the flow of air on the steel sheet surface, and if it is 10 mmφ or more, the non-adhesiveness decreases or the coating film peels off at the colored pattern portion. . On the other hand, the coverage area ratio of these pattern layers 4 and 5 is 5%.
If it is less than 90%, the design feeling is poor, and if it is 90% or more, the non-adhesiveness is reduced and the coating film is peeled off.
The intermediate colored pattern layer 4 and the outermost colored pattern layer 5 are coated with the colored undercoat film 2 or the translucent top coat film 3.
May be in a dry-cured state or in an undried wet state. However, considering the physical adhesion effect by embedding the resin particles or the labor required in the process, the colored undercoat film 2 or the translucent top coat 3 It is preferable that the colored pattern resin is painted when the resin is in a soft wet state and then dried together. The drying temperature at that time is in accordance with the drying temperature of the colored undercoating film 2 or the translucent topcoating film 3.
【００２３】[0023]
【実施例】実施例１ 板厚0.5 mmの SUS430 鋼板 (金属板１) の表面に、塗布
型クロメート処理 (日本バーカライジング製ZM−1300，
クロム量30mg/m２)を施し、次いで、ポリエーテルスル
フォン樹脂 100重量部、ポリテトラフルオロエチレン樹
脂30重量部、酸化チタン系着色顔料 100重量部からなる
濃紺色を有する着色下塗り被膜２形成用塗料を、乾燥膜
厚にして12μｍになるようにロールコータで塗布し、そ
の後、板温が280 ℃となるよう40秒間で焼付けた後、そ
の上に、ポリテトラフルオロエチレン樹脂 100重量部、
ポリエーテルスルフォン樹脂30重量部、酸化鉄系着色顔
料30重量部、アルミフレーク１重量部からなる薄い黒銀
色を有する透光性上塗り被膜３形成用塗料を乾燥膜厚に
して15μｍになるようにロールコ−タで塗布し、引き続
き、透光性上塗り被膜３がウェット状態のうちに、ポリ
テトラフルオロエチレン樹脂 100重量部、ポリエーテル
スルフォン樹脂30重量部、酸化鉄系着色顔料20重量部、
アルミフレーク５重量部からなる銀色を有する最表面着
色模様層５形成用塗料を、回転霧化式のスパッタ塗装装
置（回転数：2000rpm、吐出量 100ml／分）にて、平均
粒径：１mm、被覆面積率：30％となるように塗布し、板
温が 380℃となるように60秒間で焼付けて、意匠化耐熱
性ふっ素樹脂被覆鋼板を得た。Example 1 A surface of a SUS430 steel plate (metal plate 1) having a thickness of 0.5 mm was coated with a coating type chromate treatment (ZM-1300, manufactured by Nippon Bark Rising).
Chromium amount of 30 mg / m 2 ), and then a navy blue colored undercoating film 2 coating consisting of 100 parts by weight of polyether sulfone resin, 30 parts by weight of polytetrafluoroethylene resin, and 100 parts by weight of titanium oxide color pigment Was applied with a roll coater so as to have a dry film thickness of 12 μm, and then baked for 40 seconds so that the sheet temperature would be 280 ° C., and then 100 parts by weight of polytetrafluoroethylene resin,
A 30% by weight of polyether sulfone resin, 30 parts by weight of iron oxide color pigment, and 1 part by weight of aluminum flake are coated with a light black silver-colored coating material for forming the light-transmitting top coat 3 so as to have a dry film thickness of 15 μm. Then, while the translucent top coat 3 is in a wet state, 100 parts by weight of a polytetrafluoroethylene resin, 30 parts by weight of a polyether sulfone resin, 20 parts by weight of an iron oxide-based coloring pigment,
The coating material for forming the outermost colored pattern layer 5 having a silver color composed of 5 parts by weight of aluminum flakes was coated with a rotary atomization type sputter coating apparatus (rotation speed: 2000 rpm, discharge rate 100 ml / min) to obtain an average particle size of 1 mm. The coating was performed so that the coating area ratio became 30%, and baked for 60 seconds so that the sheet temperature became 380 ° C., to obtain a heat-resistant fluororesin-coated steel sheet with a design.
【００２４】実施例２ 金属板１を、板厚 0.5mmのガルバリウム鋼板（目付けAZ
70）、着色下塗り被膜２（乾燥膜厚：12μｍ) を、ポリ
エーテルスルフォン樹脂 100重量部、ポリテトラフルオ
ロエチレン樹脂30重量部、酸化チタン系着色顔料 100重
量部、防錆顔料(ストロンチウムクロメート) 20重量部
としたこと以外は、実施例１と同じ条件として、意匠化
耐熱性ふっ素樹脂被覆鋼板を得た。Example 2 A metal plate 1 was formed of a galvalume steel plate (basis AZ) having a thickness of 0.5 mm.
70), the colored undercoating film 2 (dry film thickness: 12 μm) was coated with 100 parts by weight of a polyether sulfone resin, 30 parts by weight of a polytetrafluoroethylene resin, 100 parts by weight of a titanium oxide coloring pigment, and a rust preventive pigment (strontium chromate) 20 Under the same conditions as in Example 1 except that the weight parts were used, a designed heat-resistant fluororesin-coated steel sheet was obtained.
【００２５】実施例３ の板厚 0.5mmのガルバリウム鋼板（目付けAZ70）に、塗
布型クロメート処理（日本バーカライジング製ZM−130
0, クロム量30mg／m２) を施し、ポリエーテルスルフォ
ン樹脂 100重量部、酸化チタン系着色顔料 100重量部、
防錆顔料（ストロンチウムクロメート）20重量部からな
る濃紺色を有する着色下塗り被膜２用塗料を乾燥膜厚に
して12μｍになるようにロールコータで塗布し、引き続
き着色下塗り被膜２がウェット状態のうちに、ポリフェ
ニルスルフィド樹脂 100重量部、パーフルオロアルキル
ビニルエーテル−テトラフルオロエチレン共重合体 100
重量部、アルミフレーク20重量部からなる銀色を有する
中間着色模様層４形成用の塗料を、回転霧化式のスパッ
タ塗装装置（回転数：1000 rpm、吐出量：200 ml／分）
にて、平均粒径：３mm、被覆面積率：10％となるように
塗布し、その後、板温が 320℃となるように50秒間で焼
付けた。そして、その下塗り被膜の上にポリテトラフル
オロエチレン樹脂 100重量部、ポリエーテルスルフォン
樹脂30重量部、酸化鉄系着色顔料30重量部からなる薄い
黒色を有する透光性上塗り被膜３形成用塗料を乾燥膜厚
にして12μｍになるようにロールコータで塗布し、引き
続きその透光性上塗り被膜３がウェット状態のうちに、
ポリテトラフルオロエチレン樹脂 100重量部、酸化鉄系
着色顔料20重量部、アルミフレーク５重量部からなる銀
色を有する最表面着色模様層５形成用の塗料を、回転霧
化式のスパッタ塗装装置（回転数：2500rpm 、吐出量：
80ml／分）で、平均粒径：0.5mm 、被覆面積率：15％と
なるように塗布したのち、板温：380℃となるよう60秒
間の焼付けを行って、意匠化耐熱ふっ素樹脂被覆鋼板を
得た。The galvalume steel sheet (basis weight AZ70) having a thickness of 0.5 mm in Example 3 was coated with a chromate treatment (ZM-130 manufactured by Nippon Barcalizing).
0, chromium amount of 30 mg / m 2 ), 100 parts by weight of polyether sulfone resin, 100 parts by weight of titanium oxide color pigment,
A paint for a colored undercoat 2 having a dark blue color consisting of 20 parts by weight of a rust-preventive pigment (strontium chromate) is applied by a roll coater to a dry film thickness of 12 μm, and then the colored undercoat 2 is wetted. , Polyphenyl sulfide resin 100 parts by weight, perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer 100
A coating material for forming the intermediate colored pattern layer 4 having a silver color consisting of 20 parts by weight of aluminum flakes and a spraying apparatus of a rotary atomization type (rotation speed: 1000 rpm, discharge amount: 200 ml / min)
The coating was performed so that the average particle size was 3 mm and the coverage area ratio was 10%, and then baked for 50 seconds so that the plate temperature became 320 ° C. Then, on the undercoat film, a light-colored translucent topcoat film 3 having 100 parts by weight of polytetrafluoroethylene resin, 30 parts by weight of polyethersulfone resin, and 30 parts by weight of iron oxide-based pigment is dried. It is applied by a roll coater so as to have a film thickness of 12 μm, and then the light-transmitting overcoat 3 is in a wet state.
A coating material for forming the outermost colored pattern layer 5 having a silver color composed of 100 parts by weight of a polytetrafluoroethylene resin, 20 parts by weight of an iron oxide-based coloring pigment, and 5 parts by weight of aluminum flakes is applied by a rotary atomization type sputter coating apparatus (rotating). Number: 2500rpm, discharge amount:
(80ml / min), average particle size: 0.5mm, coated area ratio: 15%, and then baked for 60 seconds at a plate temperature of 380 ° C to obtain a heat-resistant fluororesin coated steel plate. I got
【００２６】比較例１ 最表面着色模様層５を、平均粒径：15mm、被覆面積率：
60％となるように塗布したこと以外は、実施例１と同じ
条件として、意匠化耐熱ふっ素樹脂被覆鋼板を得た。Comparative Example 1 The outermost colored pattern layer 5 was prepared as follows: average particle size: 15 mm, covering area ratio:
Under the same conditions as in Example 1 except that the coating was performed so as to be 60%, a designed heat-resistant fluororesin-coated steel sheet was obtained.
【００２７】比較例２ 最表面着色模様層５を、平均粒径：５mm、被覆面積率：
80％となるように塗布したこと以外は、実施例１と同じ
条件として、意匠化耐熱ふっ素樹脂被覆鋼板を得た。COMPARATIVE EXAMPLE 2 The outermost colored pattern layer 5 had an average particle size of 5 mm and a covering area ratio of 5%.
Under the same conditions as in Example 1 except that the coating was performed so as to be 80%, a designed heat-resistant fluororesin-coated steel sheet was obtained.
【００２８】比較例３ 着色下塗り被膜２（乾燥膜厚12μｍ）を、ポリエーテル
スルフォン樹脂 100重量部、ポリテトラフルオロエチレ
ン樹脂 150重量部、酸化チタン系着色顔料 100重量部、
防錆顔料（ストロンチウムクロメート）20重量部とした
こと以外は、実施例２と同じ条件として、意匠化耐熱ふ
っ素樹脂被覆鋼板を得た。Comparative Example 3 A colored undercoating film 2 (dry film thickness: 12 μm) was prepared by adding 100 parts by weight of a polyether sulfone resin, 150 parts by weight of a polytetrafluoroethylene resin, 100 parts by weight of a titanium oxide-based coloring pigment,
Under the same conditions as in Example 2 except that the rust-preventive pigment (strontium chromate) was used in an amount of 20 parts by weight, a designed heat-resistant fluororesin-coated steel sheet was obtained.
【００２９】比較例４ 透光性上塗り被膜３（乾燥膜厚15μｍ）を、ポリテトラ
フルオロエチレン樹脂100重量部、ポリエーテルスルフ
ォン樹脂 150重量部、酸化鉄系着色顔料30重量部部、ア
ルミフレーク５重量部としたこと以外は、実施例１と同
じ条件として、意匠化耐熱ふっ素樹脂被覆鋼板を得た。Comparative Example 4 A translucent top coat 3 (15 μm dry film thickness) was prepared by adding 100 parts by weight of polytetrafluoroethylene resin, 150 parts by weight of polyether sulfone resin, 30 parts by weight of iron oxide coloring pigment, and aluminum flake 5 Under the same conditions as in Example 1 except that the weight parts were used, a designed heat-resistant fluororesin-coated steel sheet was obtained.
【００３０】比較例５ 透光性上塗り被膜３（乾燥膜厚10μｍ) を、ポリテトラ
フルオロエチレン樹脂100 重量部、ポリエーテルスルフ
ォン樹脂30重量部、酸化鉄系着色顔料 120重量部とした
こと以外は、実施例３と同じ条件として、意匠化耐熱ふ
っ素樹脂被覆鋼板を得た。Comparative Example 5 A translucent top coat 3 (dry film thickness: 10 μm) was changed to 100 parts by weight of polytetrafluoroethylene resin, 30 parts by weight of polyether sulfone resin, and 120 parts by weight of iron oxide coloring pigment. Under the same conditions as in Example 3, a design-resistant heat-resistant fluororesin-coated steel sheet was obtained.
【００３１】比較例６ 透光性上塗り被膜３を、ポリテトラフルオロエチレン樹
脂 100重量部、ポリエーテルスルフォン樹脂30重量部、
酸化鉄系着色顔料30重量部、乾燥膜厚25μｍとしたこと
以外は、実施例３と同じ条件として、意匠化耐熱ふっ素
樹脂被覆鋼板を得た。COMPARATIVE EXAMPLE 6 A translucent top coat 3 was prepared by mixing 100 parts by weight of polytetrafluoroethylene resin, 30 parts by weight of polyether sulfone resin,
Under the same conditions as in Example 3 except that the iron oxide-based coloring pigment was 30 parts by weight and the dry film thickness was 25 μm, a designed heat-resistant fluororesin-coated steel sheet was obtained.
【００３２】表１に、上記各実施例および比較例で得ら
れたふっ素樹脂被覆鋼板について、各種性能試験を行っ
た結果を示す。意匠性は、試験片の被膜外観を評価した
ものである。塗膜密着性（碁盤目エリクセン試験）は、
試験片にカッターナイフで１mm間隔に縦横各11本づつ切
り込みを入れ、100 個の碁盤目を作製し、その反対面か
らエリクセン試験機で６mm押出し、被膜に加工歪みを付
与し、碁盤目部にセロハンテープを貼付して強制剥離を
行った後の被膜剥離の有無（○×）で評価した。耐熱性
は、試験片を300℃で10時間保持した後、被膜密着性試
験と同様に碁盤目エリクセン試験で評価した。非粘着性
は、試験片被膜表面に、卵、醤油、砂糖の等量混合液を
約３cc滴下し、 260℃の加熱炉で15分間保持し、十分に
冷却した後に滴下した混合液が被膜表面に焦げ付くこと
なく除去できるかどうかを試験した。そして、５回繰り
返しても焦げ付き発生のないものを良好（○）、５回ま
でに焦げ付いて除去できないものを不良（×) と評価し
た。Table 1 shows the results of various performance tests performed on the fluororesin-coated steel sheets obtained in the above Examples and Comparative Examples. The design property is obtained by evaluating the appearance of the coating of the test piece. Coating film adhesion (cross-cut Erichsen test)
The test piece was cut into 11 pieces each in the vertical and horizontal directions at 1 mm intervals with a cutter knife, and 100 cross-cuts were prepared. From the opposite surface, 6 mm was extruded with an Erichsen tester, and the coating was subjected to processing strain, and the cross-section was formed. Evaluation was made based on the presence or absence of film peeling (Ox) after the cellophane tape was applied and forced peeling was performed. The heat resistance was evaluated by a cross-cut Erichsen test in the same manner as in the film adhesion test after holding the test piece at 300 ° C. for 10 hours. For non-stickiness, about 3 cc of a mixture of equal amounts of egg, soy sauce, and sugar was dropped on the surface of the test piece coating, kept in a heating furnace at 260 ° C for 15 minutes, cooled sufficiently, and the dropped mixture was added to the coating surface. Were tested for their ability to be removed without burning. Those which were not burnt even after repeated 5 times were evaluated as good (良好), and those which were not burnt and removed by 5 times were evaluated as poor (×).
【００３３】[0033]
【表１】 [Table 1]
【００３４】その結果、最表面着色模様の平均径が大き
い比較例１、および被覆面積率が大きい比較例２は、意
匠性が乏しいと共に、被膜密着性、非粘着性が悪く、下
塗り鼓膜の組成が本発明に適合しない比較例３は被膜密
着性が悪く、上塗り被膜の組成が本発明に適合しない比
較例４は非粘着性が悪く、顔料の組成 (比較例５) ，膜
厚 (比較例６) が本発明の条件から外れるものでは意匠
性が低くなるということがわかった。この点、本発明の
実施例１，２，３は、意匠性、被膜密着性、耐熱性、非
粘着性ともに優れることがわかった。As a result, Comparative Example 1 in which the average diameter of the outermost surface colored pattern is large and Comparative Example 2 in which the coverage area ratio is large have poor design properties, poor film adhesion and non-adhesiveness, Comparative Example 3, which does not conform to the present invention, has poor film adhesion, Comparative Example 4, in which the composition of the overcoat film does not conform to the present invention, has poor non-adhesiveness, pigment composition (Comparative Example 5), film thickness (Comparative Example) It has been found that when 6) is out of the range of the present invention, the design is reduced. In this regard, it was found that Examples 1, 2, and 3 of the present invention were excellent in all of design properties, coating adhesion, heat resistance, and non-adhesion.
【００３５】[0035]
【発明の効果】以上説明したとおり、本発明に係る意匠
化耐熱性ふっ素樹脂被膜金属板は、ベースの着色下塗り
被膜と着色模様層と、透光性上塗り被膜との組合せによ
り、本来要求される耐熱性や非粘着性を犠牲とすること
なく所定のレベルを確保しつつ、鮮明で深みのある意匠
性を具え、かつ各被膜の密着性に優れる意匠樹脂被覆金
属板を、通常の連続塗装設備で安価に製造することがで
きる。As described above, the heat-resistant fluororesin-coated metal sheet according to the present invention originally required by the combination of the colored undercoat film, the colored pattern layer and the light-transmitting overcoat film on the base. Normally continuous coating equipment can be used to secure a specified level without sacrificing heat resistance and non-adhesiveness, and to provide a design resin-coated metal plate with a clear and deep design and excellent adhesion of each coating. And can be manufactured at low cost.
【図１】本発明の第１実施形態を示す断面図である。FIG. 1 is a sectional view showing a first embodiment of the present invention.
【図２】本発明の第２実施形態を示す断面図である。FIG. 2 is a sectional view showing a second embodiment of the present invention.
【図３】実施例１で得られた意匠化耐熱ふっ素樹脂被覆
鋼板の表面状態を示す写真。FIG. 3 is a photograph showing the surface condition of the heat-resistant fluororesin-coated steel sheet designed in Example 1 obtained.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D075 AE03 AE04 CA13 CB11 DA06 DB01 DC10 EA43 EB18 EB37 4F100 AA21 AA21H AA23 AA23H AB01A AB03 AB10 AK17C AK17J AK18B AK18C AK18J AK50C AK50D AK55A AK55B AK55C AK55D AK57C AK57D AL01C AL05C AL05D BA03 BA04 BA07 BA10A BA10C CA13 CA13C CC00B CC00C EH46 GB08 HB00 HB00B HB00C HB00D JA20C JJ03 JK06 JL10B JL13 JN01C YY00C YY00D 4H020 AA03 AB03 BA12 4K044 AA02 AA03 AB02 BA10 BA15 BA21 BB03 BB04 BB05 BB08 BB16 BC02 BC09 CA11 CA16 CA53 CA62 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D075 AE03 AE04 CA13 CB11 DA06 DB01 DC10 EA43 EB18 EB37 4F100 AA21 AA21H AA23 AA23H AB01A AB03 AB10 AK17C AK17J AK18B AK18C AK18J AK50C AK50D AK50D AK50D AK50D AK50D AK50D BA10A BA10C CA13 CA13C CC00B CC00C EH46 GB08 HB00 HB00B HB00C HB00D JA20C JJ03 JK06 JL10B JL13 JN01C YY00C YY00D 4H020 AA03 AB03 BA12 4K044 AA02 AA03 AB02 BA10 CA15 BB03 BB03 BC02
Claims (9)
樹脂とポリテトラフルオロエチレン樹脂とを主成分とす
る樹脂による着色下塗り被膜を設け、その下塗り被膜の
上に、ポリテトラフルオロエチレン樹脂とポリエーテル
スルホン樹脂を主成分とする樹脂による透光性上塗り被
膜を設けてなり、かつその上塗り被膜の表層部内に、ポ
リテトラフルオロエチレン樹脂、パーフルオロアルキル
ビニルエーテル−テトラフルオロエチレン共重合体のう
ちの少なくとも１種を主成分とする樹脂による最表面着
色模様層を斑点状に形成してなる意匠樹脂被覆金属板。A colored undercoat made of a resin containing a polyether sulfone resin and a polytetrafluoroethylene resin as main components is provided on a surface of a metal plate, and a polytetrafluoroethylene resin and a polyether are provided on the undercoat. A translucent overcoat made of a resin containing a sulfone resin as a main component is provided, and at least one of a polytetrafluoroethylene resin and a perfluoroalkylvinylether-tetrafluoroethylene copolymer is provided in a surface layer of the overcoat. A design-resin-coated metal plate having a spot-shaped outermost colored pattern layer made of a resin containing a seed as a main component.
ロエチレン樹脂、パーフルオロアルキルビニルエーテル
−テトラフルオロエチレン共重合体のうち少なくとも１
種とポリエーテルスルホン樹脂、ポリフェニルスルフィ
ド樹脂、ポリアミドイミド樹脂のうちの少なくとも１種
との混合物を主成分とする樹脂によって斑点状に形成さ
れたものであることを特徴とする請求項１に記載の意匠
樹脂被覆金属板。2. The method according to claim 1, wherein the outermost colored pattern layer comprises at least one of a polytetrafluoroethylene resin and a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer.
2. The resin composition according to claim 1, wherein the resin is a spot-shaped resin mainly composed of a mixture of a seed and at least one of a polyether sulfone resin, a polyphenyl sulfide resin and a polyamideimide resin. Design resin coated metal plate.
樹脂とポリテトラフルオロエチレン樹脂とを主成分とす
る樹脂による着色下塗り被膜を設け、その下塗り被膜の
上に、ポリテトラフルオロエチレン樹脂とポリエーテル
スルホン樹脂を主成分とする樹脂による透光性上塗り被
膜を設けてなり、かつ前記下塗り被膜と上塗り被膜との
境界には、ポリエーテルスルホン樹脂、ポリフェニルス
ルフィド樹脂、ポリアミドイミド樹脂のうちの少なくと
も１種を主成分とする樹脂による中間着色模様層が両被
膜に跨がって斑点状に分散形成されていると共に、前記
上塗り被膜の表層部内にも、ポリテトラフルオロエチレ
ン樹脂、パーフルオロアルキルビニルエーテル−テトラ
フルオロエチレン共重合体のうちの少なくとも１種を主
成分とする樹脂による最表面着色模様層を斑点状に形成
してなる意匠樹脂被覆金属板。3. A colored undercoat made of a resin containing a polyether sulfone resin and a polytetrafluoroethylene resin as main components on a surface of a metal plate, and a polytetrafluoroethylene resin and a polyether A translucent top coat made of a resin containing a sulfone resin as a main component is provided, and at least one of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamideimide resin is provided at a boundary between the undercoat and the top coat. An intermediate colored pattern layer made of a resin having a seed as a main component is dispersedly formed in a spot-like manner over both films, and also in the surface layer portion of the overcoat film, a polytetrafluoroethylene resin, a perfluoroalkyl vinyl ether- A resin containing at least one of tetrafluoroethylene copolymers as a main component; A design resin-coated metal plate formed by forming an outermost surface colored pattern layer in a spot shape.
樹脂とポリテトラフルオロエチレン樹脂とを主成分とす
る樹脂による着色下塗り被膜を設け、その下塗り被膜の
上に、ポリテトラフルオロエチレン樹脂とポリエーテル
スルホン樹脂を主成分とする樹脂による透光性上塗り被
膜を設けてなり、かつ前記下塗被膜と上付塗被膜との境
界には、ポリエーテルスルホン樹脂、ポリフェニルスル
フィド樹脂、ポリアミドイミド樹脂のうちの少なくとも
１種と、ポリテトラフルオロエチレン樹脂、パーフルオ
ロアルキルビニルエーテル−テトラフルオロエチレン共
重合体のうちの少なくとも１種との混合物を主成分とす
る樹脂による中間着色模様層が、両被膜に跨がって斑点
状に分散形成されていると共に、前記上塗り被膜の表層
部内に、ポリテトラフルオロエチレン樹脂、パーフルオ
ロアルキルビニルエーテル−テトラフルオロエチレン共
重合体のうちの少なくとも１種を主成分とする樹脂によ
る最表面着色模様層を斑点状に形成してなる意匠樹脂被
覆金属板。4. A colored undercoat made of a resin containing a polyether sulfone resin and a polytetrafluoroethylene resin as main components on a surface of a metal plate, and the polytetrafluoroethylene resin and the polyether are provided on the undercoat. A translucent top coat made of a resin containing a sulfone resin as a main component is provided, and a boundary between the undercoat and the top coat is formed of a polyether sulfone resin, a polyphenyl sulfide resin, or a polyamideimide resin. An intermediate colored pattern layer made of a resin mainly containing a mixture of at least one kind and at least one of a polytetrafluoroethylene resin and a perfluoroalkylvinyl ether-tetrafluoroethylene copolymer straddles both coatings. Are dispersed and formed in a spot-like manner, and the A design resin-coated metal plate comprising a spot-shaped outermost colored pattern layer made of a resin containing at least one of a fluoroethylene resin and a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer as a main component.
ロエチレン樹脂、パーフルオロアルキルビニルエーテル
−テトラフルオロエチレン共重合体のうち少なくとも１
種と、ポリエーテルスルホン樹脂、ポリフェニルスルフ
ィド樹脂、ポリアミドイミド樹脂のうちの少なくとも１
種との混合物を主成分とする樹脂によって斑点状に形成
されたものであることを特徴とする請求項３または４に
記載の意匠樹脂被覆金属板。5. The outermost colored pattern layer comprises at least one of a polytetrafluoroethylene resin and a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer.
A species and at least one of a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamideimide resin;
The design resin-coated metal plate according to claim 3, wherein the metal plate is formed in a spot shape by using a resin mainly containing a mixture with a seed.
様の大きさが、平均径で0.5 〜10mm、被覆面積率で 5〜
70％に相当するものであることを特徴とする請求項１〜
５のいずれか１項に記載の意匠樹脂被覆金属板。6. The outermost surface colored pattern layer has an individual spot pattern having an average diameter of 0.5 to 10 mm and a covering area ratio of 5 to 10 mm.
It is equivalent to 70%.
6. The design resin-coated metal plate according to any one of the above items 5.
の大きさが、平均径で0.5 〜10mm、被覆面積率で 5〜90
％に相当するものであることを特徴とする請求項１〜５
のいずれか１項に記載の意匠樹脂被覆金属板。7. The intermediate colored pattern layer, wherein the size of each spot pattern is 0.5 to 10 mm in average diameter and 5 to 90 in coverage area ratio.
%.
The design resin-coated metal plate according to any one of the above.
ルホン樹脂とポリテトラフルオロエチレン樹脂の比率
が、ポリエーテルスルホン樹脂 100重量部に対し、ポリ
テトラフルオロエチレン樹脂が 100重量部以下の割合で
あることを特徴とする請求項１〜７のいずれか１項に記
載の意匠樹脂被覆金属板。8. The ratio of the polyether sulfone resin to the polytetrafluoroethylene resin in the colored undercoat film is 100 parts by weight or less of the polytetrafluoroethylene resin per 100 parts by weight of the polyether sulfone resin. The design resin-coated metal plate according to any one of claims 1 to 7, characterized in that:
ルオロエチレン樹脂とポリエーテルスルホン樹脂の比率
が、ポリテトラフルオロエチレン樹脂 100重量部に対
し、ポリエーテルスルホン樹脂を 100重量部以下、着色
顔料を 100重量部以下の割合で配合され、膜厚が20μｍ
以下としたことを特徴とする請求項１〜７のいずれか１
項に記載の意匠樹脂被覆金属板。9. The ratio of the polytetrafluoroethylene resin to the polyethersulfone resin in the translucent topcoat film is 100 parts by weight of the polytetrafluoroethylene resin, 100 parts by weight or less of the polyethersulfone resin, In a proportion of 100 parts by weight or less, and a film thickness of 20 μm
8. The method according to claim 1, wherein:
Item 6. The design resin-coated metal plate according to the above item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000103783A JP2001295069A (en) | 2000-04-05 | 2000-04-05 | Decorative resin coated metallic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000103783A JP2001295069A (en) | 2000-04-05 | 2000-04-05 | Decorative resin coated metallic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001295069A true JP2001295069A (en) | 2001-10-26 |
Family
ID=18617428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000103783A Pending JP2001295069A (en) | 2000-04-05 | 2000-04-05 | Decorative resin coated metallic sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001295069A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006212777A (en) * | 2005-02-01 | 2006-08-17 | Sumitomo Metal Steel Products Inc | Pattern coated metal sheet excellent in design properties and its manufacturing method |
| JP2006320851A (en) * | 2005-05-19 | 2006-11-30 | Sekisui Chem Co Ltd | Method for forming coating film |
| JP2007230099A (en) * | 2006-03-01 | 2007-09-13 | Nippon Steel & Sumikin Coated Sheet Corp | Coated metal sheet excellent in processability and scratch resistance |
| JP2007530199A (en) * | 2004-03-30 | 2007-11-01 | セブ エスアー | Cookware with improved scratch resistance |
| JP2009248459A (en) * | 2008-04-07 | 2009-10-29 | Nippon Steel & Sumikin Coated Sheet Corp | Coated metal plate excelling in designing, and its manufacturing method |
| WO2011086276A1 (en) | 2009-12-23 | 2011-07-21 | Seb Sa | Cookware article including an outer nonstick coating comprising a decoration on the outer base |
| CN112662308A (en) * | 2020-12-07 | 2021-04-16 | 佛山市珀力玛高新材料有限公司 | Non-stick cookware coating and preparation method of primer of non-stick cookware coating |
| JP7463135B2 (en) | 2020-03-05 | 2024-04-08 | アイカテック建材株式会社 | Decorative Panel |
-
2000
- 2000-04-05 JP JP2000103783A patent/JP2001295069A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007530199A (en) * | 2004-03-30 | 2007-11-01 | セブ エスアー | Cookware with improved scratch resistance |
| JP2006212777A (en) * | 2005-02-01 | 2006-08-17 | Sumitomo Metal Steel Products Inc | Pattern coated metal sheet excellent in design properties and its manufacturing method |
| JP4598549B2 (en) * | 2005-02-01 | 2010-12-15 | 日鉄住金鋼板株式会社 | Pattern-coated metal plate with excellent design and its manufacturing method |
| JP2006320851A (en) * | 2005-05-19 | 2006-11-30 | Sekisui Chem Co Ltd | Method for forming coating film |
| JP2007230099A (en) * | 2006-03-01 | 2007-09-13 | Nippon Steel & Sumikin Coated Sheet Corp | Coated metal sheet excellent in processability and scratch resistance |
| JP4704246B2 (en) * | 2006-03-01 | 2011-06-15 | 日鉄住金鋼板株式会社 | Painted metal plate with excellent workability and scratch resistance |
| JP2009248459A (en) * | 2008-04-07 | 2009-10-29 | Nippon Steel & Sumikin Coated Sheet Corp | Coated metal plate excelling in designing, and its manufacturing method |
| WO2011086276A1 (en) | 2009-12-23 | 2011-07-21 | Seb Sa | Cookware article including an outer nonstick coating comprising a decoration on the outer base |
| JP7463135B2 (en) | 2020-03-05 | 2024-04-08 | アイカテック建材株式会社 | Decorative Panel |
| CN112662308A (en) * | 2020-12-07 | 2021-04-16 | 佛山市珀力玛高新材料有限公司 | Non-stick cookware coating and preparation method of primer of non-stick cookware coating |
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