JPH07112517A - Heating container with fluororesin coating film and manufacture thereof - Google Patents
Heating container with fluororesin coating film and manufacture thereofInfo
- Publication number
- JPH07112517A JPH07112517A JP5259925A JP25992593A JPH07112517A JP H07112517 A JPH07112517 A JP H07112517A JP 5259925 A JP5259925 A JP 5259925A JP 25992593 A JP25992593 A JP 25992593A JP H07112517 A JPH07112517 A JP H07112517A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- coating film
- heating container
- ptfe
- pfa
- 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.)
- Granted
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 238000000576 coating method Methods 0.000 title claims abstract description 38
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 35
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 35
- 239000010408 film Substances 0.000 claims abstract description 34
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 12
- 229920006026 co-polymeric resin Polymers 0.000 claims abstract description 11
- 229920013653 perfluoroalkoxyethylene Polymers 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000010445 mica Substances 0.000 claims abstract description 8
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 8
- 239000010409 thin film Substances 0.000 claims abstract description 8
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 claims abstract 4
- 241000209094 Oryza Species 0.000 claims description 10
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 235000009566 rice Nutrition 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 14
- 238000007639 printing Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract 2
- 239000002932 luster Substances 0.000 abstract 2
- 238000009503 electrostatic coating Methods 0.000 abstract 1
- 239000002987 primer (paints) Substances 0.000 description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000010730 cutting oil Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 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
- 238000005266 casting Methods 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
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cookers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (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のかわりに、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. Further, instead of engraving as a means for displaying characters or the like on a container, recently, more and more things are 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 of the primer coating film caused by incomplete removal of cutting oil and lubricating oil used during container production, and changes in color tone due to variations in primer coating film thickness Since the fluororesin coating film of No. 1 is transparent, there is a problem in that it can be seen through as it is and becomes a defective appearance product. 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方法で
は、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, in the method of printing on the primer layer of the prior art and coating the transparent fluororesin on the primer layer, the top layer is transparent even if there are minute defects in the primer layer. There was a problem in that there was a problem in appearance.
【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、印刷表示層が施され、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）層が設けられ、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 is provided with a print display layer on a primer layer on a substrate, and a bright display is formed thereon. A thin film polytetrafluoroethylene (PTFE) layer containing an organic component is provided, 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、その上
に文字、図面等の印刷を行い、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た後、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
焼成するという構成を備えたものである。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, the method for producing a heating container having a fluororesin coating film of the present invention comprises forming a primer layer on the surface of a substrate, printing letters, drawings, etc. on the primer layer, and forming a thin film containing a glittering component on it. After spray-coating a polytetrafluoroethylene (PTFE) layer with a dispersion, a powder coating containing a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) is electrostatically coated, and then baked. Be prepared.
【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、印刷表示層を施し、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（ＰＴＦ
Ｅ）層を設け、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
イマー塗装し、乾燥後に文字等を印刷し、その後、光輝
成分を有するＰＴＦＥディスパージョン、ＰＦＡ粉体の
順に塗装する。これを焼成し被膜とする。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 print display layer is formed on a primer layer on a substrate, and a thin film of polytetrafluoroethylene (PTF) containing a glittering component is formed thereon.
E) layer is provided, and a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer is provided thereon, so that the fluororesin has few coating film defects, excellent appearance, and mass productivity. It can be a heating container having a coating film. That is, in order to cover the appearance defects such as stains and cissing that are likely to occur in the primer layer, a primer is applied, characters are printed after drying, and then PTFE dispersion having a glitter component and PFA powder are applied in that order. To do. This is fired to form a film. It is possible to obtain a beautiful coating film with good workability and productivity with no noticeable coating defects.
【００１０】またＦＥＰ成分を含む印刷層を形成する場
合、その上に同じ溶融性樹脂であるＰＦＡで被覆した場
合、温度上昇時に、ＦＥＰが最も先に軟化を始め、ＰＦ
Ａ塗膜硬度が低下する。これを改善する為に、ＦＥＰ印
刷層とＰＦＡの間に同様の光輝成分を含むＰＴＦＥ層を
狭む事により、印刷部塗膜硬度の低下を改善することが
できる。さらに、光輝性成分をマイカ又は金属粉体から
選定することにより、色彩の自由度を増大させることが
できる。When forming a printing layer containing an FEP component and coating it with PFA which is the same meltable resin, when the temperature rises, the FEP starts to soften first and then PF.
A coating film hardness decreases. In order to improve this, by narrowing the PTFE layer containing the same bright component between the FEP printing layer and the PFA, it is possible to improve the decrease in the coating film hardness of the printed part. Furthermore, the degree of freedom of color can be increased by selecting the glitter component from mica or metal powder.
【００１１】また本発明方法によれば、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。Further, according to the method of the present invention, it is possible to efficiently and rationally manufacture a heating container having a fluororesin coating film which has few coating film defects, is excellent in appearance, and is excellent in mass productivity.
【００１２】[0012]
【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）、４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（ＰＴＦＥ）層、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。印刷表示層３は１０μｍ以下の
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４（メタリック層）は１
〜２０μｍ程度の厚さが好ましい。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 base material such as aluminum or stainless steel, 2 is a primer layer, 3 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 letters / symbols such as the number of cups and the amount of water), 4 is a thin polytetrafluoroethylene (PTFE) layer containing a glitter component, and 5 is tetrafluoroethylene-perfluoro. It is an alkoxyethylene copolymer resin (PFA) layer. The primer layer 2 is 5 to 20 μm
A moderate thickness is preferred. The print display layer 3 preferably has a thickness of 10 μm or less. The thin polytetrafluoroethylene (PTFE) layer 4 (metallic layer) containing the glittering component is 1
A thickness of about 20 μm is preferable. Tetrafluoroethylene
Perfluoroalkoxyethylene copolymer resin (PFA)
The layer 5 preferably has a thickness of about 10 to 100 μm.
【００１３】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の光輝性成分としては、雲
母（マイカ）、合成雲母、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、ＰＴＦＥ１
００重量部（固形重量）に対して、０．１〜１５重量部
程度、好ましくは０．７〜１１重量部添加するのが好ま
しい。Examples of the glittering component of the thin polytetrafluoroethylene (PTFE) layer 4 containing the glittering component include mica, synthetic mica, metal powder (eg nickel powder, aluminum powder, silver powder, gold powder, platinum). Examples thereof include powder, etc.), synthetic resin fine particles having metal surfaces plated, and the like. These glittering components are PTFE1
It is preferable to add about 0.1 to 15 parts by weight, preferably 0.7 to 11 parts by weight, relative to 00 parts by weight (solid weight).
【００１４】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。その後ダイキン工
業株式会社製ＰＴＦＥディスパージョンＥＫ−４３００
ＣＲ（光輝性成分である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、乾燥後すぐ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, 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, PTFE dispersion EK-4300 manufactured by Daikin Industries, Ltd.
CR (3% by weight of mica which is a glittering component is added to the solid content) is spray-coated to a baked film thickness of 5 μm, and immediately after drying, PFA powder MP- manufactured by Mitsui DuPont Fluorochemical Co., Ltd. After firing, 10 was electrostatically coated to a thickness of 25 μm. This was baked at 380 ° C. for 20 minutes. In this way, a gas cooker pot was prepared.
【００１５】（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。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１０
μｍ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２
５μｍになるように塗装した。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. As a primer, a film thickness of 10 after firing primer EK-1959DGN manufactured by Daikin Industries, Ltd.
It was coated to a thickness of 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 firing PFA powder MP-10 manufactured by Mitsui DuPont Fluorochemicals Co., Ltd. 2
It was coated so as to have a thickness of 5 μm. This was baked at 380 ° C. for 20 minutes. In this way, a gas cooker pot was prepared.
【００１６】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.
【００１７】[0017]
【表１】 [Table 1]
【００１８】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 spots 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.
【００１９】（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.
【００２０】[0020]
【表２】 [Table 2]
【００２１】また本発明の実施例においては、ＦＥＰ成
分を含む印刷層を形成する場合、その上に同じ溶融性樹
脂であるＰＦＡで被覆した場合、温度上昇時に、ＦＥＰ
が最も先に軟化を始め、ＰＦＡ塗膜硬度が低下する。こ
れを改善する為に、ＦＥＰ印刷層とＰＦＡの間に同様の
光輝成分を含むＰＴＦＥ層を狭む事により、印刷部塗膜
硬度の低下を改善することができた。Further, in the embodiment of the present invention, when a printing layer containing an FEP component is formed, when it is coated with PFA which is the same meltable resin, when the temperature rises, FEP is applied.
Begins to soften, and the PFA coating film hardness decreases. In order to improve this, by narrowing the PTFE layer containing the same bright component between the FEP printing layer and PFA, it was possible to improve the decrease in the coating film hardness on the printed part.
【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、印刷表示層を施し、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）層を設け、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（ＰＦ
Ａ）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。As described above, according to the present invention, a print display layer is formed on a primer layer on a substrate, and a thin polytetrafluoroethylene (PTFE) layer containing a glitter component is formed thereon. And a tetrafluoroethylene-perfluoroalkoxyethylene copolymer resin (PF
By providing the layer A), it is possible to obtain a heating container having a fluororesin coating film with few coating film defects, excellent appearance, and excellent mass productivity.
【００２３】また本発明方法によれば、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。Further, according to the method of the present invention, it is possible to efficiently and rationally manufacture a heating container having a fluororesin coating film which has few coating film defects, is excellent in appearance, and is excellent in 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 印刷表示層 ４ 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 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 Print display layer 4 Polytetrafluoroethylene (PTFE) layer of a thin film containing a glitter component 5 4 Fluorinated ethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer
───────────────────────────────────────────────────── 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 27/06 8413−4Ｆ 27/20 Ｚ 8413−4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B32B 27/06 8413-4F 27/20 Z 8413-4F
Claims (5)
層が施され、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）層が設けられ、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 printed display layer is provided on a primer layer on a substrate, and a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is provided on the printed display layer. Container having a fluororesin coating film provided with a fluorinated ethylene-perfluoroalkoxyethylene copolymer resin (PFA) layer.
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.
上に文字、図面等の印刷を行い、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た後、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 substrate, characters, drawings, etc. are printed on the primer layer, and a thin polytetrafluoroethylene (PTFE) layer containing a glittering component is sprayed thereon by dispersion. After coating, 4
A method for producing a heating container having a fluororesin coating film, comprising electrostatically coating a powder coating material containing a fluoroethylene-perfluoroalkoxyethylene copolymer resin (PFA), and then firing the powder coating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259925A JP2593043B2 (en) | 1993-10-18 | 1993-10-18 | Heating container having fluororesin coating film and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259925A JP2593043B2 (en) | 1993-10-18 | 1993-10-18 | Heating container having fluororesin coating film and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07112517A true JPH07112517A (en) | 1995-05-02 |
| JP2593043B2 JP2593043B2 (en) | 1997-03-19 |
Family
ID=17340839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5259925A Expired - Fee Related JP2593043B2 (en) | 1993-10-18 | 1993-10-18 | Heating container having fluororesin coating film and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593043B2 (en) |
Cited By (3)
| 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 |
| JP2002235040A (en) * | 2001-02-08 | 2002-08-23 | Mitsubishi Electric Corp | Method for coating substrate |
| KR100804387B1 (en) * | 2007-07-09 | 2008-02-15 | 박수진 | Method for manufacturing cooking vessel |
-
1993
- 1993-10-18 JP JP5259925A patent/JP2593043B2/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| JP2002235040A (en) * | 2001-02-08 | 2002-08-23 | Mitsubishi Electric Corp | Method for coating substrate |
| KR100804387B1 (en) * | 2007-07-09 | 2008-02-15 | 박수진 | Method for manufacturing cooking vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2593043B2 (en) | 1997-03-19 |
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