JPH07111946A - Heating container having fluororesin coating film and manufacture thereof - Google Patents
Heating container having fluororesin coating film and manufacture thereofInfo
- Publication number
- JPH07111946A JPH07111946A JP5259926A JP25992693A JPH07111946A JP H07111946 A JPH07111946 A JP H07111946A JP 5259926 A JP5259926 A JP 5259926A JP 25992693 A JP25992693 A JP 25992693A JP H07111946 A JPH07111946 A JP H07111946A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- coating film
- heating container
- ptfe
- polytetrafluoroethylene
- 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
- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- 238000000576 coating method Methods 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 45
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 45
- 239000010408 film Substances 0.000 claims abstract description 40
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 20
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 229920013653 perfluoroalkoxyethylene Polymers 0.000 claims abstract description 13
- 229920006026 co-polymeric resin Polymers 0.000 claims abstract description 11
- 239000010409 thin film Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000010445 mica Substances 0.000 claims abstract description 9
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 241000209094 Oryza Species 0.000 claims description 16
- 235000007164 Oryza sativa Nutrition 0.000 claims description 16
- 235000009566 rice Nutrition 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 67
- 239000002987 primer (paints) Substances 0.000 description 34
- 238000007639 printing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000010730 cutting oil Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000013615 primer Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Cookers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、各種厨房器用加熱容器
に有用なフッ素樹脂積層を有する加熱容器及びその製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating container having a fluororesin laminate which is useful as a heating container for various kitchen appliances, and a method for producing the heating container.
【０００２】[0002]
【従来の技術】ガス炊飯器又は電力を熱源とする炊飯
器、鍋等には、こげつき防止や撥水性を向上させるた
め、フッ素樹脂被膜を有するものが用いられている。フ
ッ素樹脂塗膜への印刷層の作成は種々の方法が提案され
ている。例えば、特開平５−１１６２６０号公報には、
基材上のプライマー層の上に特定の耐熱インクで印刷層
を形成し、その上にフッ素樹脂層を設けることが提案さ
れている。また特開平４−３３１１５０号公報には、基
材表面をあらかじめ凹凸処理し、次にフッ素樹脂ベース
層を設け、その上にインクで印刷層を形成し、その上に
フッ素樹脂層を設け、これをプレス成形して炊飯器や鍋
にすることが提案されている。さらに特開平４−１４４
４１号公報には、基材上の不透明着色層の上にインクで
印刷層を形成し、その上にクリヤー系フッ素樹脂層を設
けることが提案されている。また、容器に文字等を表示
する手段として刻印にかわり、最近はプライマー層とト
ップ層の間に印刷されるものも多くなっている。2. Description of the Related Art Gas cookers, rice cookers using electric power as a heat source, pots, and the like have a fluororesin coating in order to prevent sticking and improve water repellency. Various methods have been proposed for forming a printing layer on a fluororesin coating film. For example, in Japanese Patent Laid-Open No. 5-116260,
It has been proposed to form a printing layer with a specific heat-resistant ink on a primer layer on a substrate, and provide a fluororesin layer on the printing layer. Further, in Japanese Unexamined Patent Publication No. 4-331150, the surface of a base material is subjected to an uneven treatment in advance, then a fluororesin base layer is provided, a print layer is formed with ink on the base layer, and a fluororesin layer is provided thereon. It has been proposed to press-mold into a rice cooker or pot. Further, JP-A-4-144
Japanese Patent Laid-Open No. 41 proposes to form a printing layer with ink on an opaque colored layer on a base material, and to provide a clear fluororesin layer thereon. In addition, as a means for displaying characters and the like on the container, the marking has been replaced by the one recently printed between the primer layer and the top layer.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記従来技術
は、実際の量産性が良いものとは言えなかった。例え
ば、容器製作時に使用する切削油や潤滑油による汚染の
除去が完全で無いために発生する、プライマー塗膜のシ
ミ、ハジキによる外観欠点や、プライマー塗膜厚みのバ
ラツキによる色調変化が、トップ層のフッ素樹脂塗膜が
透明であるため、そのまま透けて見え外観被良品となる
という問題があった。特に鋳物の場合は巣が発生しやす
くこの巣の部分に切削油等が浸透し、塗膜欠点の原因と
なることが多い。However, the above-mentioned prior art cannot be said to have good actual mass productivity. For example, appearance defects due to stains and cissing on the primer coating film caused by incomplete removal of contamination by cutting oil and lubricating oil used when manufacturing containers, and color tone changes due to variations in primer coating film thickness Since the fluororesin coating film of No. 1 is transparent, there is a problem that it can be seen through as it is and becomes a product with a good appearance. Especially in the case of casting, cavities are likely to occur, and cutting oil or the like permeates into the cavities, which often causes coating film defects.
【０００４】また、前記従来技術のプライマー層の上に
印刷を行い、その上に透明フッ素樹脂を被覆すると、プ
ライマー層に発生した微細な欠点であっても、トップ層
が透明であるため外観上問題が発生するという問題があ
った。Further, when printing is performed on the above-mentioned primer layer of the prior art and a transparent fluororesin is coated on the primer layer, the top layer is transparent and the top layer is transparent, so that there is a small defect in appearance. There was a problem that a problem occurred.
【０００５】本発明は前記従来の問題を解決するため、
塗膜欠点が少なく、外観に優れ、かつ量産性に優れたフ
ッ素樹脂塗膜を有する加熱容器及びその製造方法を提供
することを目的とする。In order to solve the above-mentioned conventional problems, the present invention provides
An object of the present invention is to provide a heating container having a fluororesin coating film having few coating film defects, excellent appearance, and excellent mass productivity, and a method for producing the heating container.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明のフッ素樹脂塗膜を有する加熱容器は、基材
上のプライマー層の上に、光輝性成分を含む薄膜のポリ
テトラフルオロエチレン（ＰＴＦＥ）層が設けられ、そ
の上に印刷表示層が施され、かつその上に４フッ化エチ
レン−パーフルオロアルコキシエチレン共重合樹脂（Ｐ
ＦＡ）層が設けられているという構成を備えたものであ
る。In order to achieve the above-mentioned object, a heating container having a fluororesin coating film of the present invention comprises a primer layer on a substrate, and a thin film of polytetrafluoroethylene containing a glitter component on the primer layer. A (PTFE) layer is provided, a print display layer is provided thereon, and a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (P
(FA) layer is provided.
【０００７】前記構成においては、光輝性成分を有する
薄膜のポリテトラフルオロエチレン（ＰＴＦＥ）層の厚
さが、１〜２０μｍの範囲であることが好ましい。また
前記構成においては、光輝性成分がマイカ又は金属粉体
から選ばれることが好ましい。In the above structure, the thickness of the polytetrafluoroethylene (PTFE) layer of the thin film containing the glittering component is preferably in the range of 1 to 20 μm. Further, in the above-mentioned constitution, the glitter component is preferably selected from mica or metal powder.
【０００８】また前記構成においては、加熱容器が、ガ
ス炊飯器又は電力を熱源とする炊飯器であることが好ま
しい。次に本発明のフッ素樹脂塗膜を有する加熱容器の
製造方法は、基材表面にプライマー層を形成し、次にそ
の上に光輝性成分を含む薄膜のポリテトラフルオロエチ
レン（ＰＴＦＥ）層をディスパージョンでスプレーコー
ティング後乾燥し、次にその上に文字、図面等の印刷を
行い、その後４フッ化エチレン−パーフルオロアルコキ
シエチレン共重合樹脂（ＰＦＡ）を含む粉体塗料を静電
塗装し、しかる後焼成することを特徴とする。In the above construction, it is preferable that the heating container is a gas rice cooker or a rice cooker using electric power as a heat source. Next, in the method for producing a heating container having a fluororesin coating film of the present invention, a primer layer is formed on the surface of a base material, and then a thin polytetrafluoroethylene (PTFE) layer containing a glitter component is dispersed on the primer layer. After spray coating with John, it is dried, then letters, drawings, etc. are printed on it, and then powder coating containing tetrafluoroethylene-perfluoroalkoxyethylene copolymerization resin (PFA) is electrostatically coated. It is characterized in that it is post-baked.
【０００９】[0009]
【作用】前記した本発明の構成によれば、基材上のプラ
イマー層の上に、光輝性成分を含む薄膜のポリテトラフ
ルオロエチレン（ＰＴＦＥ）層が設けられ、その上に印
刷表示層が施され、かつその上に４フッ化エチレン−パ
ーフルオロアルコキシエチレン共重合樹脂（ＰＦＡ）層
を設けたことにより、塗膜欠点が少なく、外観に優れ、
かつ量産性に優れたフッ素樹脂塗膜を有する加熱容器と
することができる。すなわち、プライマー層に発生しや
すいシミ、ハジキ等の塗膜外観欠点をカバーするため、
プライマー層の上に光輝性成分を含む薄膜のポリテトラ
フルオロエチレン（ＰＴＦＥ）層を設け、その上に文字
等を印刷し、その後、ＰＦＡ粉体の順に塗装する。そし
て全体を焼成し被膜とする。この結果、塗装欠点が目立
たず加工性、生産性の良い美しい塗膜を得る事が出来
る。According to the above-mentioned constitution of the present invention, a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is provided on the primer layer on the substrate, and a print display layer is provided thereon. And by providing a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer thereon, there are few coating film defects and the appearance is excellent,
Moreover, it is possible to obtain a heating container having a fluororesin coating film excellent in mass productivity. That is, in order to cover the coating film appearance defects such as stains and cissing that are likely to occur in the primer layer,
A thin polytetrafluoroethylene (PTFE) layer containing a glittering component is provided on the primer layer, characters and the like are printed thereon, and then PFA powder is applied in that order. Then, the whole is baked to form a film. As a result, it is possible to obtain a beautiful coating film which is free from coating defects and has good workability and productivity.
【００１０】また、光輝性成分を有する薄膜のポリテト
ラフルオロエチレン（ＰＴＦＥ）層の厚さが、１〜２０
μｍの範囲であると、プライマー層に発生しやすいシ
ミ、ハジキ等の塗膜外観欠点をより効果的に改良でき、
印刷表示体がより明瞭となる。Further, the thickness of the polytetrafluoroethylene (PTFE) layer of the thin film having a glittering component is 1 to 20.
When it is in the range of μm, it is possible to more effectively improve the coating film appearance defects such as stains and cissing which are likely to occur in the primer layer.
The printed display becomes clearer.
【００１１】また、光輝性成分がマイカ又は金属粉体か
ら選ばれるものを用いると、プライマー層の塗膜外観欠
点をより効果的に改良でき、印刷表示体がより明瞭とな
る。また加熱容器が、ガス炊飯器又は電力を熱源とする
炊飯器であると、炊飯器の内面に表示する印刷表示体が
より明瞭となる。。Further, when the glittering component selected from mica and metal powder is used, the coating layer appearance defect of the primer layer can be more effectively improved, and the printed display becomes clearer. Further, when the heating container is a gas rice cooker or a rice cooker using electric power as a heat source, the printed indicator displayed on the inner surface of the rice cooker becomes clearer. .
【００１２】次に本発明の製造方法によれば、基材表面
にプライマー層を形成し、次にその上に光輝性成分を含
む薄膜のポリテトラフルオロエチレン（ＰＴＦＥ）層を
ディスパージョンでスプレーコーティング後乾燥し、次
にその上に文字、図面等の印刷を行い、その後４フッ化
エチレン−パーフルオロアルコキシエチレン共重合樹脂
（ＰＦＡ）を含む粉体塗料を静電塗装し、しかる後焼成
することにより、前記塗膜欠点が少なく、外観に優れ、
かつ量産性に優れたフッ素樹脂塗膜を有する加熱容器を
効率よく合理的に製造できる。Next, according to the production method of the present invention, a primer layer is formed on the surface of a substrate, and then a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is spray-coated by dispersion. After drying, then printing letters, drawings, etc. on it, then electrostatically coating a powder coating containing tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA), and then baking. As a result, the coating film has few defects and has an excellent appearance,
In addition, a heating container having a fluororesin coating film excellent in mass productivity can be efficiently and rationally manufactured.
【００１３】[0013]
【実施例】以下図面を用いて本発明をさらに具体的に説
明する。図１は本発明の一実施例のガス炊飯器の部分拡
大断面図である。図１において、１はアルミニウム、ス
テンレスなどの金属基材、２はプライマー層、３は光輝
性成分を含む薄膜のポリテトラフルオロエチレン（ＰＴ
ＦＥ）層、４は文字、記号、図形等の印刷表示層（例え
ば炊飯器の場合、米の量を示す「カップ」という文字及
びカップの数、水量などの文字・記号）、５は４フッ化
エチレン−パーフルオロアルコキシエチレン共重合樹脂
（ＰＦＡ）層である。プライマー層２は５〜２０μｍ程
度の厚さが好ましい。光輝性成分を含む薄膜のポリテト
ラフルオロエチレン（ＰＴＦＥ）層３（メタリック層）
は１〜２０μｍ程度の厚さが好ましい。印刷表示層４は
１０μｍ以下の厚さが好ましい。４フッ化エチレン−パ
ーフルオロアルコキシエチレン共重合樹脂（ＰＦＡ）層
５は１０〜１００μｍ程度の厚さが好ましい。The present invention will be described more specifically with reference to the drawings. FIG. 1 is a partially enlarged sectional view of a gas rice cooker according to an embodiment of the present invention. In FIG. 1, 1 is a metal substrate such as aluminum or stainless steel, 2 is a primer layer, 3 is a thin film of polytetrafluoroethylene (PT) containing a glitter component.
FE) layer, 4 is a printed display layer of characters, symbols, figures, etc. (for example, in the case of a rice cooker, the letter "cup" indicating the amount of rice and the number of cups, the amount of water, etc.) Ethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer. The primer layer 2 preferably has a thickness of about 5 to 20 μm. Thin polytetrafluoroethylene (PTFE) layer 3 containing a glittering component (metallic layer)
Preferably has a thickness of about 1 to 20 μm. The print display layer 4 preferably has a thickness of 10 μm or less. The tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer 5 preferably has a thickness of about 10 to 100 μm.
【００１４】光輝性成分を含む薄膜のポリテトラフルオ
ロエチレン（ＰＴＦＥ）層３の光輝性成分としては、雲
母（マイカ）、合成雲母（マイカ）、金属粉体（例えば
ニッケル粉、アルミニウム粉、銀粉、金粉、白金粉
等）、合成樹脂微粒子の表面に金属メッキしたものなど
を一例として挙げることができる。これら光輝性成分
は、ＰＴＦＥ１００重量部（固形重量）に対して、０．
１〜１５重量部添加するのが好ましく、より好ましくは
０．７〜１１重量部程度である。As the glittering component of the thin polytetrafluoroethylene (PTFE) layer 3 containing the glittering component, mica, synthetic mica, metal powder (eg nickel powder, aluminum powder, silver powder, Examples thereof include gold powder, platinum powder, etc.), synthetic resin fine particles having metal surfaces plated, and the like. These glittering components were added in an amount of 0. 0 with respect to 100 parts by weight of PTFE (solid weight).
It is preferable to add 1 to 15 parts by weight, and more preferably about 0.7 to 11 parts by weight.
【００１５】以下具体的実施例を説明する。 （実施例１）アルミ容器を脱脂後、サンドプラスト処理
を行い表面を粗面化した。プライマーとしてダイキン工
業株式会社製プライマーＥＫ−１９５９ＤＧＮを焼成後
膜厚１０μｍになるように塗装し、１２０℃で１０分間
乾燥した。その上にダイキン工業株式会社製ＰＴＦＥデ
ィスパージョンＥＫ−４３００ＣＲ（マイカを固形分に
対して３重量％添加）を焼成膜厚５μｍになるようにス
プレー塗装し、乾燥後、その上にダイキン工業株式会社
製ＦＥＰディスパージョンＮＤ−２と酸化チタンを主成
分とするインキを用い、印刷層をタンポ印刷した。次に
その上に三井デュポンフロロケミカル株式会社製ＰＦＡ
粉体ＭＰ−１０を焼成後２５μｍになるように静電塗装
した。これを３８０℃で２０分間焼成分した。このよう
にしてガス炊飯器用釜を作成した。Specific examples will be described below. (Example 1) After degreasing an aluminum container, a sand plast treatment was performed to roughen the surface. As a primer, a primer EK-1959DGN manufactured by Daikin Industries, Ltd. was applied after firing to a film thickness of 10 μm, and dried at 120 ° C. for 10 minutes. Daikin Kogyo Co., Ltd. PTFE dispersion EK-4300CR (3% by weight of mica was added to the solid content) was spray-coated to a baked film thickness of 5 μm, and after drying, Daikin Kogyo Co., Ltd. The printing layer was tampo printed using FEP Dispersion ND-2 manufactured and ink containing titanium oxide as a main component. Next, on top of that, PFA made by Mitsui DuPont Fluorochemical Co., Ltd.
The powder MP-10 was electrostatically coated so as to have a thickness of 25 μm after firing. This was baked at 380 ° C. for 20 minutes. In this way, a gas cooker pot was prepared.
【００１６】（比較例１）上記、実施例１よりＰＴＦＥ
ディスパージョンを除いたものを比較例とした。すなわ
ち、アルミ容器を脱脂後、サンドプラスト処理を行い表
面を粗面化した。次にプライマーとしてダイキン工業株
式会社製プライマーＥＫ−１９５９ＤＧＮを焼成後膜厚
１０μｍになるよう塗装し、１２０℃で１０分間乾燥し
た。その上に、ダイキン工業株式会社製ＦＥＰディスパ
ージョンＮＤ−２と酸化チタンを主成分とするインキを
用い、印刷層をタンポ印刷した。その後三井デュポンフ
ロロケミカル株式会社製ＰＦＡ粉体ＭＰ−１０を焼成後
２５μｍになるように静電塗装した。これを３８０℃で
２０分間焼成分した。このようにしてガス炊飯器用釜を
作成した。(Comparative Example 1) From the above Example 1, PTFE was used.
The thing except the dispersion was made into the comparative example. That is, the aluminum container was degreased and then sandblasted to roughen the surface. Next, as a primer, primer EK-1959DGN manufactured by Daikin Industries, Ltd. was applied after firing to a film thickness of 10 μm, and dried at 120 ° C. for 10 minutes. A printing layer was tampo-printed thereon using FEP Dispersion ND-2 manufactured by Daikin Industries, Ltd. and an ink containing titanium oxide as a main component. After that, PFA powder MP-10 manufactured by Mitsui DuPont Fluorochemical Co., Ltd. was baked and electrostatically coated so as to have a thickness of 25 μm. This was baked at 380 ° C. for 20 minutes. In this way, a gas cooker pot was prepared.
【００１７】実施例１及び比較例１の外観及び鉛筆硬度
を比較した。表１に結果を示す。The appearance and pencil hardness of Example 1 and Comparative Example 1 were compared. The results are shown in Table 1.
【００１８】[0018]
【表１】 [Table 1]
【００１９】表１から明らかな通り、実施例１はプライ
マー表面のシミ、ハジキ等の欠点を隠蔽し、美しい外観
を得る事が出来た。これに対して比較例はプライマーの
ハジキが透けて見え、外観上の欠点となった。As is clear from Table 1, Example 1 was able to conceal defects such as stains and cissing on the primer surface and obtain a beautiful appearance. On the other hand, in the comparative example, the cissing of the primer was seen through, which was a defect in appearance.
【００２０】（実施例２）マイカ／ＰＴＦＥ固形分比と
膜厚を表２に示すように変化させた以外は、実施例１と
同様な方法で実験を行った。その結果を表２に示す。表
２から明らかな通り、マイカ／ＰＴＦＥ固形分比が０．
７１〜１０．３１重量％の範囲、及び膜厚が５〜１５μ
ｍの範囲であれば、プライマー欠点が少なくて外観に優
れ、かつ文字も良く判別できた。Example 2 An experiment was conducted in the same manner as in Example 1 except that the mica / PTFE solid content ratio and the film thickness were changed as shown in Table 2. The results are shown in Table 2. As is clear from Table 2, the mica / PTFE solid content ratio is 0.
71 to 10.31 wt% range and film thickness 5 to 15 μ
Within the range of m, there were few primer defects, the appearance was excellent, and the characters could be distinguished well.
【００２１】[0021]
【表２】 [Table 2]
【００２２】[0022]
【発明の効果】以上説明した通り、本発明によれば、基
材上のプライマー層の上に、光輝性成分を含む薄膜のポ
リテトラフルオロエチレン（ＰＴＦＥ）層が設けられ、
その上に印刷表示層が施され、かつその上に４フッ化エ
チレン−パーフルオロアルコキシエチレン共重合樹脂
（ＰＦＡ）層を設けたことにより、塗膜欠点が少なく、
外観に優れ、かつ量産性に優れたフッ素樹脂塗膜を有す
る加熱容器とすることができる。すなわち、プライマー
層に発生しやすいシミ、ハジキ等の塗膜外観欠点をカバ
ーするため、プライマー層の上に光輝性成分を含む薄膜
のポリテトラフルオロエチレン（ＰＴＦＥ）層を設け、
その上に文字等を印刷し、その後、ＰＦＡ粉体の順に塗
装する。そして全体を焼成し被膜とする。この結果、塗
装欠点が目立たず加工製、生産性の良い美しい塗膜を得
る事が出来る。As described above, according to the present invention, a thin polytetrafluoroethylene (PTFE) layer containing a glitter component is provided on a primer layer on a substrate,
A print display layer is applied on top of this, and a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer is provided on top of this, so there are few coating film defects,
It is possible to obtain a heating container having a fluororesin coating film which has excellent appearance and mass productivity. That is, a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is provided on the primer layer in order to cover coating film defects such as stains and cissing that are likely to occur in the primer layer.
Characters etc. are printed on it, and then PFA powder is applied in this order. Then, the whole is baked to form a film. As a result, it is possible to obtain a beautiful coating film which is manufactured without processing defects and has good productivity.
【００２３】また、光輝性成分を有する薄膜のポリテト
ラフルオロエチレン（ＰＴＦＥ）層の厚さが、１〜２０
μｍの範囲であると、プライマー層に発生しやすいシ
ミ、ハジキ等の塗膜外観欠点をより効果的に改良でき、
印刷表示をよりわかりやすいものとすることができる。The thickness of the polytetrafluoroethylene (PTFE) layer of the thin film containing the glittering component is 1 to 20.
When it is in the range of μm, it is possible to more effectively improve the coating film appearance defects such as stains and cissing which are likely to occur in the primer layer.
The printed display can be made more understandable.
【００２４】また、光輝性成分がマイカ又は金属粉体か
ら選ばれるものを用いると、プライマー層の塗膜外観欠
点をより効果的に改良でき、印刷表示をよりわかりやす
いものとすることができる。Further, when the glittering component selected from mica and metal powder is used, the coating layer appearance defect of the primer layer can be more effectively improved, and the printed display can be made easier to understand.
【００２５】また加熱容器が、ガス炊飯器又は電力を熱
源とする炊飯器であると、炊飯器の内面に表示する印刷
表示をよりわかりやすいものとすることができる。次に
本発明の製造方法によれば、基材表面にプライマー層を
形成し、次にその上に光輝性成分を含む薄膜のポリテト
ラフルオロエチレン（ＰＴＦＥ）層をディスパージョン
でスプレーコーティングし、次にその上に文字、図面等
の印刷を行い、その後４フッ化エチレン−パーフルオロ
アルコキシエチレン共重合樹脂（ＰＦＡ）を含む粉体塗
料を静電塗装し、しかる後焼成することにより、前記塗
膜欠点が少なく、外観に優れ、かつ量産性に優れたフッ
素樹脂塗膜を有する加熱容器を効率よく合理的に製造で
きる。When the heating container is a gas rice cooker or a rice cooker using electric power as a heat source, the printed display on the inner surface of the rice cooker can be made easier to understand. Next, according to the production method of the present invention, a primer layer is formed on the surface of the base material, and then a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is spray-coated by dispersion, Characters, drawings, etc. are printed on it, and then a powder coating containing tetrafluoroethylene-perfluoroalkoxyethylene copolymerization resin (PFA) is electrostatically coated, and then baked to obtain the coating film. It is possible to efficiently and rationally manufacture a heating container having a fluororesin coating film with few defects, an excellent appearance, and excellent mass productivity.
【図１】本発明の一実施例のガス炊飯器の部分拡大断面
図である。FIG. 1 is a partially enlarged cross-sectional view of a gas rice cooker according to an embodiment of the present invention.
１ 基材 ２ プライマー層 ３ 光輝性成分を含む薄膜のポリテトラフルオロエチレ
ン（ＰＴＦＥ）層 ４ 印刷表示層 ５ ４フッ化エチレン−パーフルオロアルコキシエチレ
ン共重合樹脂（ＰＦＡ）層DESCRIPTION OF SYMBOLS 1 Base material 2 Primer layer 3 Polytetrafluoroethylene (PTFE) layer of a thin film containing a glittering component 4 Print display layer 5 4 Fluorinated ethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１１月５日[Submission date] November 5, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記従来技術
は、実際の量産性が良いものとは言えなかった。例え
ば、容器製作時に使用する切削油や潤滑油による汚染の
除去が完全で無いために発生する、プライマー塗膜のシ
ミ、ハジキによる外観欠点や、プライマー塗膜厚みのバ
ラツキによる色調変化が、トップ層のフッ素樹脂塗膜が
透明であるため、そのまま透けて見え外観不良品となる
という問題があった。特に鋳物の場合は巣が発生しやす
くこの巣の部分に切削油等が浸透し、塗膜欠点の原因と
なることが多い。However, the above-mentioned prior art cannot be said to have good actual mass productivity. For example, appearance defects due to stains and cissing on the primer coating film caused by incomplete removal of contamination by cutting oil and lubricating oil used when manufacturing containers, and color tone changes due to variations in primer coating film thickness since fluororesin coating is transparent, there is a problem that the visible appearance defective show through it. Especially in the case of casting, cavities are likely to occur, and cutting oil or the like permeates into the cavities, which often causes coating film defects.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１７[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１７】実施例１及び比較例１の外観及び印刷文字
の判別を比較した。表１に結果を示す。Appearance and printed characters of Example 1 and Comparative Example 1
Were compared. The results are shown in Table 1.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ３２Ｂ 27/20 Ｚ 8413−4Ｆ 27/30 Ｄ 8115−4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B32B 27/20 Z 8413-4F 27/30 D 8115-4F
Claims (5)
分を含む薄膜のポリテトラフルオロエチレン（ＰＴＦ
Ｅ）層が設けられ、その上に印刷表示層が施され、かつ
その上に４フッ化エチレン−パーフルオロアルコキシエ
チレン共重合樹脂（ＰＦＡ）層が設けられているフッ素
樹脂塗膜を有する加熱容器。1. A thin film of polytetrafluoroethylene (PTF) containing a glitter component on a primer layer on a substrate.
E) layer is provided, a print display layer is provided thereon, and a fluororesin coating film having a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer provided thereon is provided. .
ルオロエチレン（ＰＴＦＥ）層の厚さが、１〜２０μｍ
の範囲である請求項１に記載のフッ素樹脂塗膜を有する
加熱容器。2. A polytetrafluoroethylene (PTFE) layer of a thin film having a glittering component has a thickness of 1 to 20 μm.
The heating container having the fluororesin coating film according to claim 1, which is in the range.
ばれる請求項１に記載のフッ素樹脂塗膜を有する加熱容
器。3. A heating container having a fluororesin coating film according to claim 1, wherein the glittering component is selected from mica and metal powder.
とする炊飯器である請求項１に記載のフッ素樹脂塗膜を
有する加熱容器。4. The heating container having the fluororesin coating film according to claim 1, wherein the heating container is a gas rice cooker or a rice cooker using electric power as a heat source.
その上に光輝性成分を含む薄膜のポリテトラフルオロエ
チレン（ＰＴＦＥ）層をディスパージョンでスプレーコ
ーティング後乾燥し、次にその上に文字、図面等の印刷
を行い、その後４フッ化エチレン−パーフルオロアルコ
キシエチレン共重合樹脂（ＰＦＡ）を含む粉体塗料を静
電塗装し、しかる後焼成することを特徴とするフッ素樹
脂塗膜を有する加熱容器の製造方法。5. A primer layer is formed on the surface of a base material, and then a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is spray-coated with a dispersion and then dried, and then a primer layer is formed thereon. Characters, drawings, etc. are printed, then powder coating containing tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) is electrostatically coated, and then fired to form a fluororesin coating film. A method of manufacturing a heating container having the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259926A JPH07111946A (en) | 1993-10-18 | 1993-10-18 | Heating container having fluororesin coating film and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259926A JPH07111946A (en) | 1993-10-18 | 1993-10-18 | Heating container having fluororesin coating film and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07111946A true JPH07111946A (en) | 1995-05-02 |
Family
ID=17340853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5259926A Pending JPH07111946A (en) | 1993-10-18 | 1993-10-18 | Heating container having fluororesin coating film and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07111946A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000343656A (en) * | 1999-02-22 | 2000-12-12 | Sumitomo Electric Ind Ltd | Fluoroplastic-coated article and production thereof |
| JP2004050461A (en) * | 2002-07-17 | 2004-02-19 | Nisshin Steel Co Ltd | Clear coated metal plate showing sharp hue |
| JP2008194111A (en) * | 2007-02-09 | 2008-08-28 | Tiger Vacuum Bottle Co Ltd | Inner pot for electric rice cooker |
| JP2010125319A (en) * | 2008-11-25 | 2010-06-10 | Seikyoku Kim | Cooking container including printing display layer |
| KR20140036638A (en) * | 2012-09-17 | 2014-03-26 | 쿠쿠전자주식회사 | Inner pot for cooker |
| 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 |
-
1993
- 1993-10-18 JP JP5259926A patent/JPH07111946A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000343656A (en) * | 1999-02-22 | 2000-12-12 | Sumitomo Electric Ind Ltd | Fluoroplastic-coated article and production thereof |
| JP2004050461A (en) * | 2002-07-17 | 2004-02-19 | Nisshin Steel Co Ltd | Clear coated metal plate showing sharp hue |
| JP2008194111A (en) * | 2007-02-09 | 2008-08-28 | Tiger Vacuum Bottle Co Ltd | Inner pot for electric rice cooker |
| JP2010125319A (en) * | 2008-11-25 | 2010-06-10 | Seikyoku Kim | Cooking container including printing display layer |
| JP4621289B2 (en) * | 2008-11-25 | 2011-01-26 | 正旭 金 | Cooking container with printed display layer |
| KR20140036638A (en) * | 2012-09-17 | 2014-03-26 | 쿠쿠전자주식회사 | Inner pot for cooker |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1986532B1 (en) | Anodised culinary item and method for producing one such item | |
| WO2003098115A1 (en) | Cooking top plate | |
| EP1712167B1 (en) | A non-stick cooking utensil | |
| KR930009293B1 (en) | Chlomatically colorable fluoro resin-coated material | |
| JPH07111946A (en) | Heating container having fluororesin coating film and manufacture thereof | |
| WO2013102635A1 (en) | Plunger for use in manufacturing glass containers | |
| JP2006521176A (en) | Food utensils having discoloration-resistant ceramic coating and process for producing the same | |
| JP3716370B2 (en) | Cooking container | |
| JP2593043B2 (en) | Heating container having fluororesin coating film and method for producing the same | |
| JP2015176753A (en) | Top plate for cooking device | |
| JPH04331150A (en) | Fluororesin coated material having scale, pattern, character, etc., thereon and manufacture thereof | |
| JP3367508B2 (en) | Fluororesin coating and manufacturing method thereof | |
| JP4621289B2 (en) | Cooking container with printed display layer | |
| US5015537A (en) | Ornamental member | |
| CN109431239A (en) | One kind exempting from bound edge enamel pan and preparation method thereof | |
| JP2006130743A (en) | Fluoroplastic coating material, cooking utensil, electromagnetic induction heating container and formation method of electromagnetic induction heating container | |
| JP3293084B2 (en) | Heat-resistant non-adhesive pre-coated steel sheet | |
| JP6341871B2 (en) | Transparent phosphorescent material | |
| JP4207158B2 (en) | Top plate for cooker and method for manufacturing the same | |
| CN112626457A (en) | High-hardness PVD (physical vapor deposition) film and preparation method thereof | |
| CN221730279U (en) | Non-sticking ceramic container | |
| JP2791517B2 (en) | Method for producing fluororesin laminate | |
| CN210930927U (en) | Superhard lotus leaf non-stick kitchen ware with light metal material molecular structure changed | |
| CN219629312U (en) | Pot tool | |
| KR0158214B1 (en) | Fluorine resin paint composition and coating materials using the same |