JPH1176934A - Heat-resistant nonadhesive decorative steel sheet and its production - Google Patents
Heat-resistant nonadhesive decorative steel sheet and its productionInfo
- Publication number
- JPH1176934A JPH1176934A JP26295697A JP26295697A JPH1176934A JP H1176934 A JPH1176934 A JP H1176934A JP 26295697 A JP26295697 A JP 26295697A JP 26295697 A JP26295697 A JP 26295697A JP H1176934 A JPH1176934 A JP H1176934A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- heat
- resistant
- fluororesin
- steel sheet
- 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.)
- Withdrawn
Links
Landscapes
- Laminated Bodies (AREA)
- Cookers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は耐熱性、非粘着性等
の特性が要求される食品調理用器具、加熱調理用器具と
して使用される耐熱非粘着意匠鋼板及びその製造方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant and non-adhesive design steel plate used as a food cooking appliance and a heating cooking appliance which are required to have properties such as heat resistance and non-adhesion, and a method for producing the same.
【０００２】[0002]
【従来の技術】食品調理器具、加熱調理器具等の耐熱、
非粘着性が要求される用途では、鋼板表面にフッ素樹脂
単独あるいはフッ素樹脂と耐熱性樹脂との混合樹脂を塗
布し、高温焼成で耐熱非粘着皮膜を形成した塗装鋼板が
使用されている。しかし、フッ素樹脂塗装の普及により
フッ素樹脂塗装製品の識別性が薄れるとともに、従来の
フッ素樹脂塗装製品は単色のものが多く、柄を含めて他
の意匠性を有する塗装製品が望まれるようになってきて
いる。2. Description of the Related Art Heat resistance of food cooking utensils, cooking utensils, etc.
In applications requiring non-adhesion, a coated steel sheet is used in which a fluororesin alone or a mixed resin of a fluororesin and a heat-resistant resin is applied to the surface of a steel sheet and a heat-resistant non-adhesive film is formed by firing at a high temperature. However, the spread of fluororesin coatings has reduced the distinctiveness of fluororesin-coated products, and many conventional fluororesin-coated products are of a single color. Is coming.
【０００３】フッ素樹脂塗装に代わるものとして、透明
フッ素樹脂フィルムに印刷を施し、印刷面を鋼板側に配
置してフッ素樹脂フィルムを積層し、透明フッ素樹脂フ
ィルムを介して印刷意匠が得られるラミネート鋼板がガ
ステーブル天板に使用され始めている。しかし、印刷を
施した透明フッ素樹脂フィルムを貼り付けたラミネート
鋼板では、印刷の基材となるフッ素樹脂フィルムが印刷
性を得るために４０μｍ前後の厚みを必要とし高価とな
る。また、フッ素樹脂フィルムを鋼板に積層するのに十
分な接着条件の自由度が低く処理も煩雑なため、従来の
耐熱非粘着プレコート鋼板に比べ著しく高価な製品とな
る。[0003] As an alternative to the fluororesin coating, a laminated fluorocarbon resin film is printed on a transparent fluororesin film, the printed surface is placed on the steel plate side, the fluororesin film is laminated, and a printed design is obtained through the transparent fluororesin film. Is being used for gas table tops. However, in the case of a laminated steel sheet to which a printed transparent fluororesin film is adhered, the fluororesin film serving as a printing substrate requires a thickness of about 40 μm in order to obtain printability, and is expensive. In addition, since the degree of freedom of bonding conditions sufficient for laminating the fluororesin film on the steel sheet is low and the processing is complicated, the product is significantly more expensive than the conventional heat-resistant non-adhesive precoated steel sheet.
【０００４】本発明者らは、通常のプレコート鋼板を製
造する連続塗装設備で製造可能な方法として、耐熱性樹
脂塗装を施した鋼板表面に耐熱性フッ素樹脂印刷インキ
をグラビアオフセット印刷し、次いで耐熱性樹脂とフッ
素樹脂との混合物からなる透明耐熱非粘着塗膜を印刷イ
ンキ層の上に形成する方法を開発し、特願平９−１９４
１９６号で提案した。また、特願平９−７５０５９号で
耐熱性樹脂塗装を施した鋼板表面に耐熱性樹脂塗料をフ
レキソ印刷し、次いで耐熱性樹脂とフッ素樹脂との混合
物からなる透明耐熱非粘着塗膜を印刷層の上に形成する
方法を提案した。いずれも通常の連続プレコート鋼板塗
装設備で製造でき、前述した印刷を施した透明フッ素樹
脂フィルムラミネート鋼板に比べ、製造条件や工程が簡
便であり比較的安価に製造できる。[0004] The present inventors have proposed a gravure offset printing method using a heat-resistant fluororesin printing ink on the surface of a steel sheet coated with a heat-resistant resin, as a method that can be manufactured by a continuous coating facility for manufacturing a normal pre-coated steel sheet. A method for forming a transparent heat-resistant and non-adhesive coating film composed of a mixture of a hydrophilic resin and a fluororesin on a printing ink layer was developed.
No. 196. In addition, a heat-resistant resin paint is flexographic-printed on the surface of a steel sheet coated with a heat-resistant resin according to Japanese Patent Application No. 9-75059, and then a transparent heat-resistant non-adhesive coating made of a mixture of a heat-resistant resin and a fluororesin is applied to the printing layer. A method of forming on top of is proposed. All of them can be manufactured with ordinary continuous pre-coated steel sheet coating equipment, and the manufacturing conditions and steps are simpler and can be manufactured relatively inexpensively as compared with the above-mentioned printed transparent fluororesin film-laminated steel sheet.
【０００５】[0005]
【発明が解決しようとする課題】しかし、グラビアオフ
セット印刷、フレキソ印刷いずれの方法でも、意匠毎に
柄ロールを作製する必要がある。これらの柄ロールは傷
付き易く操業上予備ロールを準備しなければならないた
め、価格を引き上げる要因となる。一方、顧客からは従
来の耐熱非粘着塗装鋼板に近い価格での意匠発現の要請
もあり、前述の印刷版を用いる意匠発現方法では対応で
きない。本発明は、このような問題に鑑みてなされたも
ので、耐熱性樹脂塗膜の表面に耐熱樹脂塗料をスプレー
塗装することにより、耐熱性及び意匠性に優れた耐熱意
匠鋼板及びその製造方法を提供することを目的とする。However, in both gravure offset printing and flexographic printing, it is necessary to produce a pattern roll for each design. Since these handle rolls are easily damaged and a spare roll must be prepared for the operation, this becomes a factor for raising the price. On the other hand, there is also a demand from customers for a design expression at a price close to that of a conventional heat-resistant and non-adhesive coated steel plate, and the above-described design expression method using a printing plate cannot respond. The present invention has been made in view of such a problem, and by spraying a heat-resistant resin paint on the surface of a heat-resistant resin coating film, a heat-resistant design steel sheet having excellent heat resistance and design properties and a method for producing the same. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】本発明はその目的を達成
するため、鋼板表面に、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中
から選ばれた少なくとも１種の耐熱性樹脂と、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中から選
ばれた少なくとも１種のフッ素樹脂との混合物を主成分
とする塗料からなる着色塗膜を形成し、その上にポリテ
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中から
選ばれた少なくとも１種のフッ素樹脂を主成分とする着
色塗料からなる不連続な模様塗膜層を形成する、もしく
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中から選ばれた少なくと
も１種の耐熱性樹脂と、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中から選ばれた少なくとも１種
のフッ素樹脂との混合物を主成分とする塗料からなる不
連続な模様塗膜層を形成することを特徴とする。本発明
の耐熱非粘着意匠鋼板は前記耐熱性樹脂と、前記フッ素
樹脂との混合物を主成分とする着色塗料を下塗り塗装後
焼付けて着色塗膜を形成した後、その上に、該下塗り塗
料と同系塗料、もしくは前記フッ素樹脂を主成分とする
着色塗料からなる不連続な模様層をスプレー塗装により
形成する方法、あるいは下塗り塗装後ウエットな状態の
うちにスプレー塗装により不連続な模様層を形成し、焼
付け硬化する方法のいずれでもよい。According to the present invention, at least one kind of heat-resistant resin selected from polyether sulfone resin, polyphenyl sulfide resin, and polyamide-imide resin is coated on the surface of a steel sheet. Forming a colored coating film composed of a paint mainly containing a mixture with at least one fluororesin selected from polytetrafluoroethylene resin and perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer, Polytetrafluoroethylene resin, to form a discontinuous pattern coating layer composed of a colored paint containing as a main component at least one fluororesin selected from perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer, Or polyether sulfone resin, polyphenyl sulfide resin, polyamide A mixture of at least one heat-resistant resin selected from amide resins and at least one fluororesin selected from polytetrafluoroethylene resin and perfluoroalkylvinyl ether-tetrafluoroethylene copolymer It is characterized in that a discontinuous pattern coating layer composed of a paint as a main component is formed. The heat-resistant and non-adhesive design steel sheet of the present invention is a heat-resistant resin, and after baking a colored paint containing a mixture of the fluororesin as a main component and baking to form a colored coating film thereon, the undercoat paint and A method of forming a discontinuous pattern layer composed of a similar paint, or a colored paint containing the fluororesin as a main component by spray coating, or forming a discontinuous pattern layer by spray coating in a wet state after undercoating. Or baking hardening.
【０００７】[0007]
【発明の実施の形態】本発明の耐熱非粘着意匠鋼板の原
板は、普通鋼、Ｚｎめっき鋼板、Ａｌめっき鋼板、Ｚｎ
−Ａｌめっき鋼板、ステンレス鋼板等のいずれでもよ
く、必要に応じてリン酸塩処理や塗布型クロメート処理
等の化成処理が施される。この鋼板表面に、先ず耐熱性
樹脂とフッ素樹脂との混合物を主成分とする着色塗料を
塗布し焼付ける。耐熱性樹脂は、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
樹脂の中から選ばれた少なくとも１種を用いる。フッ素
樹脂は、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
重合体の中から選ばれた少なくとも１種を用いる。耐熱
性樹脂とフッ素樹脂との混合割合は、４０：６０〜７
０：３０（好ましくは５０：５０〜６０：４０）であ
る。BEST MODE FOR CARRYING OUT THE INVENTION The heat-resistant and non-adhesive design steel sheet of the present invention is made of plain steel, Zn-plated steel sheet, Al-plated steel sheet, Zn-plated steel sheet.
-Any of an Al-plated steel sheet and a stainless steel sheet may be used, and a chemical conversion treatment such as a phosphate treatment or a coating-type chromate treatment is performed as necessary. First, a colored paint mainly composed of a mixture of a heat-resistant resin and a fluororesin is applied to the surface of the steel sheet and baked. As the heat resistant resin, at least one selected from a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamide imide resin is used. As the fluororesin, at least one selected from a polytetrafluoroethylene resin and a perfluoroalkylvinylether-tetrafluoroethylene copolymer is used. The mixing ratio of the heat-resistant resin and the fluororesin is 40:60 to 7
0:30 (preferably 50:50 to 60:40).
【０００８】着色塗料は下地鋼板を隠蔽するとともに、
スプレーによる不連続模様柄との組合せで意匠を発現す
るベース色となるため、耐熱性に優れた着色顔料を配合
することが好ましい。着色顔料として酸化チタン、カー
ボンブラック、酸化クロム、酸化鉄等がある。必要に応
じて防錆顔料、体質顔料を添加してもよい。調製した耐
熱非粘着性着色塗料は、乾燥膜厚で２〜２０μｍとなる
ように鋼板表面に塗布し、塗料中に含まれる耐熱性樹脂
とフッ素樹脂の中で最も融点の高い樹脂の融点を超える
温度で焼付け、次の工程で、耐熱性樹脂とフッ素樹脂と
の混合樹脂、もしくはフッ素樹脂を主成分とする着色塗
料をスプレー塗装する。あるいは、鋼板表面に着色塗料
の塗布後、ウエット状態で該着色塗料をスプレー塗装す
る。耐熱非粘着性着色塗料は溶剤に可溶な耐熱性樹脂
と、溶剤に溶解しないフッ素樹脂を含むのでチキソトロ
ピックな塗料となる。塗布するに際し、通常のロールコ
ート法によるナチュラル方式やリバース方式では塗装で
きない場合があり、ロールコート法でムラなく塗装する
には、トップフィードフルリバース方式を採用すること
が好ましい。[0008] The colored paint conceals the underlying steel sheet,
It is preferable to incorporate a color pigment having excellent heat resistance, since the base color will exhibit a design when combined with a discontinuous pattern by spraying. Color pigments include titanium oxide, carbon black, chromium oxide, iron oxide and the like. Rust-preventive pigments and extenders may be added as necessary. The prepared heat-resistant and non-tacky colored paint is applied to the surface of a steel sheet so as to have a dry film thickness of 2 to 20 μm, and exceeds the melting point of the resin having the highest melting point among the heat-resistant resin and the fluororesin contained in the paint. Baking is performed at a temperature, and in the next step, a mixed resin of a heat-resistant resin and a fluororesin, or a colored paint mainly composed of a fluororesin is spray-coated. Alternatively, after the colored paint is applied to the steel sheet surface, the colored paint is spray-coated in a wet state. The heat-resistant and non-tacky colored paint contains a heat-resistant resin soluble in a solvent and a fluororesin insoluble in the solvent, and thus becomes a thixotropic paint. When applying, there is a case where the coating cannot be performed by the natural method or the reverse method by the ordinary roll coating method, and in order to perform the coating by the roll coating method without unevenness, it is preferable to adopt the top feed full reverse method.
【０００９】スプレー塗装による不連続な模様発現は、
塗膜が硬化した耐熱非粘着性着色塗装鋼板表面に行う、
もしくは、鋼板表面に塗装した耐熱非粘着性着色塗料が
ウェットな状態で行う。ウエットの場合、塗料中にスプ
レー塗料が「滲む」現象を予想したが、乾燥後にスプレ
ー塗装するものと変わらない意匠外観を呈することがわ
かった。スプレー塗装によって不連続な模様柄を付与す
るには、スプレー圧力、吐出量、塗料粘度等によって、
パターン、模様サイズを細かく調整し、意匠発現の再現
性を図る必要がある。前述したグラビアオフセット印刷
やフレキソ印刷に比べ、意匠表現力は劣るが、無地の耐
熱非粘着塗装鋼板より優位であり、柄ロールを製作する
必要も無く、高価なインキを使う必要も無いのでコスト
アップ因子がない。また、プレコート鋼板製造用の連続
塗装ラインのロールコータと焼付け用オーブンとの間に
スプレー装置を設置するだけで製造でき、異なる不連続
模様の付与についてもスプレー条件、塗料性状等を調整
するだけで対応できる。[0009] Discontinuous pattern expression by spray coating
Perform on the surface of the heat-resistant and non-adhesive colored coated steel sheet where the coating is cured,
Alternatively, the heat-resistant and non-adhesive colored paint applied to the steel sheet surface is wet. In the case of wet, the phenomenon that the spray paint "bleeds" into the paint was expected, but it was found that the paint had the same design appearance as that of the spray paint after drying. In order to give a discontinuous pattern by spray painting, depending on the spray pressure, discharge amount, paint viscosity, etc.
It is necessary to fine-tune the pattern and pattern size to achieve reproducibility of design expression. Compared to the gravure offset printing and flexo printing described above, the design expressiveness is inferior, but it is superior to plain heat-resistant and non-adhesive coated steel plate, and there is no need to manufacture pattern rolls, and there is no need to use expensive ink, so costs increase. There are no factors. In addition, it can be manufactured simply by installing a spray device between the roll coater and the baking oven of the continuous coating line for the production of pre-coated steel sheets, and for the application of different discontinuous patterns, simply adjust the spray conditions, paint properties, etc. Can respond.
【００１０】不連続模様を付与するためのスプレー塗装
用塗料は下地耐熱非粘着性着色塗膜層と同様に、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中から選ばれた少なくとも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
体の中から選ばれた少なくとも１種からなるフッ素樹脂
との混合物を主成分とする耐熱非粘着性着色塗料を使用
する。あるいは、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
チレン共重合体の中から選ばれた少なくとも１種からな
るフッ素樹脂を主成分とする塗料を使用する。塗料中に
は、着色顔料として模様柄を発現させるため耐熱性に優
れた酸化チタン、カーボンブラック、酸化クロム、酸化
鉄等が配合されている。不連続な模様をスプレー塗装す
る際、意匠性を考慮すると乾燥膜厚で０．５〜１０μｍ
となるように塗料を噴霧し、塗料中に含まれる耐熱非粘
着性樹脂のうち、融点の最も高い樹脂の融点を超える温
度で焼付ける。このように形成された不連続な模様塗膜
層は下地耐熱非粘着性着色塗膜層に強固に密着し、下地
塗膜と同様な耐熱非粘着性を有する。なお、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
ミドイミド樹脂の中から選ばれた少なくとも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中
から選ばれた少なくとも1種からなるフッ素樹脂との混
合物を主成分とする耐熱非粘着性着色塗料に関して、ス
プレー塗装による不連続な模様塗膜層の耐熱非粘着性の
発現は、焼付けの際に表面エネルギーの小さいフッ素樹
脂が溶融状態の耐熱性樹脂中をマイグレーションし、熱
力学的に安定な形態をとった結果であると推察される。[0010] The paint for spray coating for imparting a discontinuous pattern is at least one selected from a polyether sulfone resin, a polyphenyl sulfide resin, and a polyamide imide resin, like the base heat-resistant and non-adhesive colored coating film layer. A heat-resistant and non-adhesive colored coating material containing a mixture of a seed and a polytetrafluoroethylene resin or a fluororesin at least one selected from perfluoroalkylvinylether-tetrafluoroethylene copolymer is used. . Alternatively, a coating material containing a fluororesin composed of at least one selected from a polytetrafluoroethylene resin and a perfluoroalkylvinyl ether-tetrafluoroethylene copolymer as a main component is used. In the paint, titanium oxide, carbon black, chromium oxide, iron oxide, and the like, which are excellent in heat resistance, for expressing a pattern as a coloring pigment are blended. When spraying a discontinuous pattern, the dry film thickness is 0.5 to 10 μm in consideration of the design.
The paint is sprayed in such a manner that the temperature is higher than the melting point of the resin having the highest melting point among the heat-resistant and non-adhesive resins contained in the paint. The discontinuous pattern coating layer thus formed firmly adheres to the base heat-resistant and non-adhesive colored coating layer, and has the same heat-resistant and non-adhesive properties as the base coating. In addition, at least one selected from polyether sulfone resin, polyphenyl sulfide resin and polyamide imide resin, and at least one selected from polytetrafluoroethylene resin and perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer With regard to heat-resistant and non-adhesive colored paints mainly composed of a mixture with one kind of fluororesin, the development of heat-resistant and non-adhesive properties of a discontinuous pattern coating film layer by spray coating is due to fluorine having a low surface energy during baking. This is presumed to be the result of the resin migrating in the heat-resistant resin in a molten state and taking a thermodynamically stable form.
【００１１】[0011]
【実施例】板厚０．４５ｍｍＳＵＳ４３０鋼板を脱脂
し、塗布型クロメート処理を施して酸化チタンを配合し
た耐熱非粘着性塗料を乾燥膜厚が１２μｍになるように
ロールコータで塗布し４００℃×４０秒間焼付けた後、
その上にカーボンブラックを配合した耐熱非粘着性塗料
を回転霧化式スプレー装置により塗布し４００℃×６０
秒間焼付けて水玉模様の不連続な塗膜を形成した。回転
霧化式スプレー装置のポンプ圧力は５ｋｇ／ｃｍ２，吐
出量は５０〜１２０ｇ／分に調整した。表1に各塗料中
の主成分樹脂と塗装後の塗膜物性との関係を示す。試験
番号３、４、７については耐熱非粘着性塗料を塗布後、
焼付けずにウエットな状態でスプレー塗装により、水玉
模様を形成した後、４００℃×６０秒間焼付けた。な
お、耐熱性樹脂とフッ素樹脂の混合塗料の配合割合は５
０重量部づつのものを用いた。EXAMPLE A SUS430 steel sheet having a thickness of 0.45 mm was degreased, subjected to a coating type chromate treatment, and coated with a heat-resistant and non-adhesive paint containing titanium oxide by a roll coater so as to have a dry film thickness of 12 μm. After baking for 2 seconds,
A heat-resistant and non-adhesive paint containing carbon black is applied thereon by a rotary atomizing spray device, and the temperature is 400 ° C. × 60.
Bake for 2 seconds to form a discontinuous polka dot coating. The pump pressure of the rotary atomizing spray device was adjusted to 5 kg / cm2, and the discharge rate was adjusted to 50 to 120 g / min. Table 1 shows the relationship between the main component resin in each paint and the physical properties of the paint film after painting. For test numbers 3, 4, and 7, after applying the heat-resistant and non-adhesive paint,
A polka dot pattern was formed by spray coating in a wet state without baking, followed by baking at 400 ° C. for 60 seconds. The mixing ratio of the heat-resistant resin and the fluororesin mixed paint is 5
One part by weight was used.
【００１２】[0012]
【表１】 [Table 1]
【００１３】表１において、ＰＥＳはポリエーテルスル
ホン樹脂、ＰＡＩはポリアミドイミド樹脂、ＰＰＳはポ
リフェニルスルフィド樹脂、ＰＦＡはパーフルオロアル
キルビニルエーテル−テトラフルオロエチレン共重合
体、ＰＴＦＥはポリテトラフルオロエチレン樹脂、ＥＰ
はエポキシ樹脂を示す。表１の塗膜物性における塗膜密
着性は、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て１００個の桝目状（ゴバン
目）とし、その全面にセロハンテープを貼付して強制剥
離を行った後の塗膜残存目数で評価した。表中の１００
／１００は、全く剥離せず良好な性能であることを示
す。耐熱性は試験片を３００℃で３００時間保持した
後、塗膜密着性試験と同様な手法でテープ剥離し評価し
た。In Table 1, PES is a polyether sulfone resin, PAI is a polyamide imide resin, PPS is a polyphenyl sulfide resin, PFA is a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer, PTFE is a polytetrafluoroethylene resin, EP
Indicates an epoxy resin. The coating film adhesion in the coating film physical properties shown in Table 1 was determined by cutting a test piece with a cutter knife at intervals of 1 mm at intervals of 11 mm each in the vertical and horizontal directions to form 100 grids (goban grid), and affixing cellophane tape to the entire surface. Of the coating film after the forced peeling was performed. 100 in the table
/ 100 indicates good performance without any peeling. The heat resistance was evaluated by holding the test piece at 300 ° C. for 300 hours and then peeling off the tape in the same manner as in the coating film adhesion test.
【００１４】耐熱非粘着性は、試験片塗膜表面に等量の
醤油、卵、砂糖の混合液および牛乳を０．５ｍｌ滴下
し、２６０℃の加熱炉で１時間保持し、十分に冷却した
後で滴下した混合液および牛乳が試験片塗膜表面に焦げ
付くことなく除去できるものを良好（○）、焦げ付いて
除去できないものを不良（×）と評価した。The heat-resistant and non-adhesive properties were determined by dropping 0.5 ml of an equal amount of a mixture of soy sauce, egg and sugar and milk on the surface of the test piece coating film, keeping the mixture in a heating furnace at 260 ° C. for 1 hour, and cooling it sufficiently. Samples that were able to remove the mixed liquid and milk dropped later without being scorched on the surface of the test piece coating film were evaluated as good (O), and samples that were scorched and could not be removed were evaluated as poor (x).
【００１５】[0015]
【発明の効果】以上のとおり本発明の耐熱非粘着意匠鋼
板は、下地の耐熱非粘着性着色塗膜と、その上にスプレ
ー塗装で施す不連続な模様塗膜との組合せにより、耐熱
性及び非粘着性を確保しつつ模様意匠性を発現させてい
るので、これまで単色で意匠性のなかった食品調理器具
や加熱調理器具用として、意匠の要求に応じたバリエー
ションに富む材料が提供できる。また、通常のプレコー
ト鋼板における連続塗装設備で対応でき、安価に製造で
きる。As described above, the heat-resistant and non-adhesive decorative steel sheet of the present invention has a heat-resistant and non-adhesive colored coating film as a base and a discontinuous pattern coating film formed by spray coating on the coating film to provide heat resistance and non-adhesiveness. Since the design of the pattern is exhibited while ensuring the non-adhesiveness, it is possible to provide a variety of materials according to the requirements of the design for food cooking utensils and heating cooking utensils that have been monochromatic and have no design. In addition, continuous coating equipment for ordinary pre-coated steel sheets can be used and can be manufactured at low cost.
フロントページの続き (72)発明者 大久保 謙一 千葉県市川市高谷新町７番地の１ 日新製 鋼株式会社技術研究所塗装・複合材料研究 部内 (72)発明者 輿石 謙二 千葉県市川市高谷新町７番地の１ 日新製 鋼株式会社技術研究所塗装・複合材料研究 部内Continuing from the front page (72) Inventor Kenichi Okubo 7-1, Takatani Shinmachi, Ichikawa City, Chiba Prefecture Nisshin Steel Co., Ltd. Technical Research Laboratory Coating and Composite Materials Research Department (72) Inventor Kenji Koshiishi 7th Takatani Shinmachi, Ichikawa City, Chiba Prefecture No. 1 Nisshin Steel Co., Ltd. Technical Research Laboratory Coating & Composite Materials Research Department
Claims (3)
ポリフェニルスルフィド樹脂、ポリアミドイミド樹脂の
中から選ばれた少なくとも１種の耐熱性樹脂と、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中から
選ばれた少なくとも１種のフッ素樹脂との混合物を主成
分とする塗料からなる着色塗膜を形成し、その上にポリ
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中か
ら選ばれた少なくとも１種のフッ素樹脂を主成分とする
着色塗料からなる不連続な模様塗膜層を形成する、もし
く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中から選ばれた少なく
とも１種の耐熱性樹脂と、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中から選ばれた少なくとも１
種のフッ素樹脂との混合物を主成分とする塗料からなる
不連続な模様塗膜層を形成することを特徴とする耐熱非
粘着意匠鋼板。(1) a polyether sulfone resin,
At least one heat-resistant resin selected from polyphenylsulfide resin and polyamide-imide resin, and at least one heat-resistant resin selected from polytetrafluoroethylene resin and perfluoroalkylvinylether-tetrafluoroethylene copolymer Form a colored coating film composed of a paint mainly containing a mixture with a fluororesin, and further form a polytetrafluoroethylene resin thereon, at least one selected from perfluoroalkylvinylether-tetrafluoroethylene copolymer Form a discontinuous pattern coating layer composed of a coloring paint containing a fluororesin as a main component, or at least one heat-resistant resin selected from polyethersulfone resin, polyphenylsulfide resin, and polyamideimide resin. , Polytetrafluoroethylene resin, perfluoro Alkyl vinyl ether - at least one selected from among tetrafluoroethylene copolymer
A heat-resistant and non-adhesive design steel sheet characterized by forming a discontinuous pattern coating layer composed of a paint mainly containing a mixture with a kind of fluororesin.
ポリフェニルスルフィド樹脂、ポリアミドイミド樹脂の
中から選ばれた少なくとも１種の耐熱性樹脂と、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中から
選ばれた少なくとも１種のフッ素樹脂との混合物を主成
分とする塗料を塗布し焼付けて着色塗膜を形成し、次い
で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
の中から選ばれた少なくとも１種のフッ素樹脂を主成分
とする着色塗料をスプレー塗装して不連続な模様塗膜層
を形成し焼付ける、もしく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
脂の中から選ばれた少なくとも１種の耐熱性樹脂と、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中
から選ばれた少なくとも１種のフッ素樹脂との混合物を
主成分とする着色塗料をスプレー塗装して不連続な模様
塗膜層を形成し、焼付けることを特徴とする耐熱非粘着
意匠鋼板の製造方法。2. A polyether sulfone resin,
At least one heat-resistant resin selected from polyphenylsulfide resin and polyamide-imide resin, and at least one heat-resistant resin selected from polytetrafluoroethylene resin and perfluoroalkylvinylether-tetrafluoroethylene copolymer A color paint film is formed by applying and baking a paint mainly containing a mixture with a fluororesin, and then forming at least one selected from polytetrafluoroethylene resin and perfluoroalkylvinyl ether-tetrafluoroethylene copolymer A discontinuous pattern coating layer formed by spray-coating a coloring paint containing a fluororesin as a main component, and baking, or at least one selected from a polyethersulfone resin, a polyphenylsulfide resin, and a polyamideimide resin. Heat-resistant resin and polytetrafluoroe A discontinuous pattern coating layer is formed by spray-coating a colored coating mainly composed of a mixture with at least one kind of fluororesin selected from a styrene resin and a perfluoroalkyl vinyl ether-tetrafluoroethylene copolymer. And heat-treating the heat-resistant and non-adhesive design steel sheet.
ポリフェニルスルフィド樹脂、ポリアミドイミド樹脂の
中から選ばれた少なくとも１種の耐熱性樹脂と、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中から
選ばれた少なくとも１種のフッ素樹脂との混合物を主成
分とする着色塗料を塗布し、ウエットな状態のうちにポ
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中
から選ばれた少なくとも１種のフッ素樹脂を主成分とす
る着色塗料をスプレー塗装して不連続な模様塗膜層を形
成し焼付ける、もしく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中
から選ばれた少なくとも１種の耐熱性樹脂と、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中から選
ばれた少なくとも１種のフッ素樹脂との混合物を主成分
とする着色塗料をスプレー塗装して不連続な模様塗膜層
を形成し焼付けることを特徴とする耐熱非粘着意匠鋼板
の製造方法。3. A steel sheet having a polyether sulfone resin,
At least one heat-resistant resin selected from polyphenylsulfide resin and polyamide-imide resin, and at least one heat-resistant resin selected from polytetrafluoroethylene resin and perfluoroalkylvinylether-tetrafluoroethylene copolymer A colored paint mainly containing a mixture with a fluororesin is applied, and at least one fluorine selected from a polytetrafluoroethylene resin and a perfluoroalkylvinylether-tetrafluoroethylene copolymer in a wet state Spray a colored paint mainly composed of resin to form a discontinuous pattern coating layer and bake it, or at least one selected from polyether sulfone resin, polyphenyl sulfide resin, polyamide imide resin Heat-resistant resin and polytetrafluoroethylene The resin, a perfluoroalkylvinylether-tetrafluoroethylene copolymer selected from the group consisting of a mixture with at least one fluororesin and sprayed with a coloring paint mainly containing a mixture to form a discontinuous pattern coating film layer. A method for producing a heat-resistant and non-adhesive design steel sheet, characterized by baking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26295697A JPH1176934A (en) | 1997-09-11 | 1997-09-11 | Heat-resistant nonadhesive decorative steel sheet and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26295697A JPH1176934A (en) | 1997-09-11 | 1997-09-11 | Heat-resistant nonadhesive decorative steel sheet and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1176934A true JPH1176934A (en) | 1999-03-23 |
Family
ID=17382891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26295697A Withdrawn JPH1176934A (en) | 1997-09-11 | 1997-09-11 | Heat-resistant nonadhesive decorative steel sheet and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1176934A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000064981A1 (en) * | 1999-04-28 | 2000-11-02 | General Electric Company | Compositions and methods for reduced food adhesion |
| JP2008510548A (en) * | 2004-08-24 | 2008-04-10 | セブ エスアー | Cookware with anti-stick coating |
| WO2011086276A1 (en) | 2009-12-23 | 2011-07-21 | Seb Sa | Cookware article including an outer nonstick coating comprising a decoration on the outer base |
| FR3014014A1 (en) * | 2013-12-03 | 2015-06-05 | Seb Sa | METHOD FOR DECORATING BY FLEXOGRAPHY AN ARTICLE COMPRISING A THERMOSTABLE COATING |
| CN115137202A (en) * | 2021-07-14 | 2022-10-04 | 浙江福腾宝家居用品有限公司 | Cooking utensil and manufacturing method thereof |
-
1997
- 1997-09-11 JP JP26295697A patent/JPH1176934A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000064981A1 (en) * | 1999-04-28 | 2000-11-02 | General Electric Company | Compositions and methods for reduced food adhesion |
| US6437031B1 (en) | 1999-04-28 | 2002-08-20 | General Electric Company | Compositions for reduced food adhesion |
| JP2008510548A (en) * | 2004-08-24 | 2008-04-10 | セブ エスアー | Cookware with anti-stick coating |
| WO2011086276A1 (en) | 2009-12-23 | 2011-07-21 | Seb Sa | Cookware article including an outer nonstick coating comprising a decoration on the outer base |
| FR3014014A1 (en) * | 2013-12-03 | 2015-06-05 | Seb Sa | METHOD FOR DECORATING BY FLEXOGRAPHY AN ARTICLE COMPRISING A THERMOSTABLE COATING |
| WO2015082820A1 (en) * | 2013-12-03 | 2015-06-11 | Seb S.A. | Method for decorating an item including a heat-stable coating by flexography |
| CN115137202A (en) * | 2021-07-14 | 2022-10-04 | 浙江福腾宝家居用品有限公司 | Cooking utensil and manufacturing method thereof |
| CN115137202B (en) * | 2021-07-14 | 2024-05-24 | 浙江福腾宝家居用品有限公司 | Cooker and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20041207 |