JP2663196B2 - Painted metal plate - Google Patents
Painted metal plateInfo
- Publication number
- JP2663196B2 JP2663196B2 JP2177490A JP17749090A JP2663196B2 JP 2663196 B2 JP2663196 B2 JP 2663196B2 JP 2177490 A JP2177490 A JP 2177490A JP 17749090 A JP17749090 A JP 17749090A JP 2663196 B2 JP2663196 B2 JP 2663196B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- metal plate
- ptfe
- fep
- coating film
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 18
- 239000002184 metal Substances 0.000 title claims description 18
- 229920005989 resin Polymers 0.000 claims description 45
- 239000011347 resin Substances 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 34
- 238000000576 coating method Methods 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 10
- 239000003973 paint Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229920005672 polyolefin resin Polymers 0.000 claims description 8
- 239000004695 Polyether sulfone Substances 0.000 claims description 6
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920002312 polyamide-imide Polymers 0.000 claims description 6
- 229920006393 polyether sulfone Polymers 0.000 claims description 6
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 6
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 229920006026 co-polymeric resin Polymers 0.000 claims description 4
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004962 Polyamide-imide Substances 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 15
- 238000011282 treatment Methods 0.000 description 13
- 230000007774 longterm Effects 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- 239000011737 fluorine Substances 0.000 description 8
- 229910052731 fluorine Inorganic materials 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 206010040844 Skin exfoliation Diseases 0.000 description 4
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000008960 ketchup Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000002987 primer (paints) Substances 0.000 description 2
- 235000015067 sauces Nutrition 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、四フッ化エチレン樹脂（PTFE）もしくは四
フッ化エチレン・六フッ化プロピレン共重合樹脂（FE
P）等のフッ化オレフィン系樹脂を含有した塗料を塗装
し、非粘着性及び潤滑性に優れていて家電製品、容器類
等に用いられる塗装金属板に関するものである。The present invention relates to a tetrafluoroethylene resin (PTFE) or an ethylene tetrafluoride / propylene hexafluoride copolymer resin (FE).
The present invention relates to a coated metal plate which is coated with a coating material containing a fluorinated olefin resin such as P) and has excellent non-adhesiveness and lubricity and is used for home appliances, containers and the like.
また、上記フッ素樹脂と共にポリエーテルサルホン樹
脂等の耐熱性樹脂を含有した塗料を塗装すれば耐熱用途
に適した塗装金属板となる。Further, if a paint containing a heat-resistant resin such as polyethersulfone resin together with the above-mentioned fluororesin is applied, a coated metal plate suitable for heat-resistant applications can be obtained.
従来の技術 フッ素系樹脂は耐候性、耐食性等が良好なため、従来
より高級塗装金属板に広く用いられている。2. Description of the Related Art Fluorine-based resins have been widely used for high-grade painted metal sheets because of their good weather resistance and corrosion resistance.
特に、フッ素系樹脂の中でも表面エネルギーが低く、
低摩擦係数を有する四フッ化エチレン樹脂（以下PTFEと
言う）や四フッ化エチレン・六フッ化プロピレン共重合
樹脂（以下FEPと言う）は非粘着性や潤滑性（加工性）
を要求される分野に広く用いられており、塗料とするた
めにPTFEやFEPに種々の樹脂（以下バインダー樹脂とい
う）を混合して利用されることが多い（特公昭55−4478
5号公報、特開昭61−111378号公報等）。In particular, the surface energy is low even among fluororesins,
Non-adhesive and lubricious (workability) ethylene tetrafluoride resin (hereinafter referred to as PTFE) and ethylene tetrafluoride / propylene hexafluoride copolymer resin (hereinafter referred to as FEP) having a low coefficient of friction
Is widely used in the fields that require the use of various resins (hereinafter referred to as binder resins) mixed with PTFE or FEP in order to obtain a coating (Japanese Patent Publication No. 55-4478).
No. 5, JP-A-61-111378, etc.).
非粘着性や潤滑性を要求される用途としては、たとえ
ば、付着防止が必要な家庭用調理容器、冷凍食品容器
や、潤滑性が要求されるにもかかわらず無塗油で成形す
る必要のある分野などが挙げられる。Applications requiring non-adhesiveness and lubricity include, for example, home cooking containers and frozen food containers that need to be prevented from sticking, and need to be molded without oiling despite lubricity being required. Fields.
このようなPTFEやFEP並びにバインダー樹脂を主成分
とした塗料から形成される塗膜においては、PTFE、FEP
は非粘着性及び潤滑性の機能を、バインダー樹脂は基材
との密着性及び可とう性の機能をそれぞれ発揮すること
が必要で、そのため膜構造としては、上層にPTFE、FEP
が、そして基材側にバインダー樹脂が富化された層分離
構造をとることが理想的である。In a coating film formed from such a PTFE or FEP and a paint containing a binder resin as a main component, PTFE, FEP
It is necessary to exhibit the functions of non-adhesiveness and lubricity, and the binder resin to exhibit the functions of adhesion to the base material and flexibility, respectively.
Ideally, the base material has a layer separation structure in which the binder resin is enriched.
しかしながら、通常のPTFE、FEPを含有する塗装系で
は、焼付過程において表面に極く薄いPTFE、FEPの濃度
の高い層が形成されるものの、明確かつ有効な層形成に
は至らず、良好な密着性、加工性に加え、長期使用に耐
える安定な非粘着性、潤滑性を得ることは困難であっ
た。However, in a coating system containing ordinary PTFE and FEP, although a very thin layer of PTFE and FEP with a high concentration is formed on the surface during the baking process, a clear and effective layer cannot be formed, resulting in good adhesion. It has been difficult to obtain stable non-adhesiveness and lubricity that can withstand long-term use in addition to the properties and workability.
この非粘着性、潤滑性を向上させるために従来より知
られている方法としては、 （１）PTFE、FEPの含有量を多くする（特開昭61−11365
9号公報）。Conventionally known methods for improving the non-adhesiveness and lubricity include: (1) Increasing the content of PTFE and FEP (JP-A-61-11365).
No. 9).
（２）焼付け温度を高くする。(2) Raise the baking temperature.
（３）塗膜面をロール圧下する（特開昭61−138567号公
報）。(3) Roll-down the coating surface (JP-A-61-138567).
（４）乾燥塗膜厚（Ｔ）と、PTFEやFEPの平均粒径また
はメジアン粒径（Ｒ）とがT/R＝0.6〜２の範囲内にあ
り、かつ全樹脂に対するフッ化オレフィン系樹脂の含有
割合を５〜60wt％とする（特願昭63−243952号公報）。(4) The dry film thickness (T) and the average particle size or median particle size (R) of PTFE or FEP are in the range of T / R = 0.6 to 2, and the fluorinated olefin resin is based on all resins. Is set to 5 to 60 wt% (Japanese Patent Application No. 63-243952).
等があった。And so on.
発明が解決しようとする課題 しかし、前述（１）の方法においては、非粘着性、潤
滑性は向上するが、密着性、加工性の低下を招く。ま
た、（２）（３）の方法においては、レベリングによっ
て、ある程度非粘着性、潤滑性の向上が認められるが、
良好な層分離構造を呈するには至らないためまだ十分と
は言い難い。さらに、（４）の方法においては、塗膜上
層部にフッ素系樹脂の富化された層が形成され、良好な
層分離構造を呈するが、長期使用に耐える安定な非粘着
性、潤滑性を得るまでには至っていない。However, in the above-mentioned method (1), the non-adhesiveness and the lubricity are improved, but the adhesion and the workability are reduced. In the methods (2) and (3), the non-adhesiveness and lubricity are improved to some extent by leveling.
It is hard to say that it is still sufficient because it does not provide a good layer separation structure. Furthermore, in the method (4), a layer enriched with a fluorine-based resin is formed on the upper layer of the coating film, and a good layer separation structure is exhibited. Not yet.
従って、本発明は、良好な密着性、加工性に加えて、
塗膜に良好な層分離構造を形成させることにより、長期
使用に耐える安定な非粘着性、潤滑性を有する塗装金属
板を得ることを目的とする。Therefore, the present invention, in addition to good adhesion, processability,
An object of the present invention is to obtain a stable non-adhesive and lubricious coated metal plate that can withstand long-term use by forming a good layer separation structure on a coating film.
課題を解決するための手段 本発明は、金属板上に、フッ化オレフィン系樹脂粉末
とその他の樹脂との混合物を主成分とする塗料を塗布、
焼付けし、塗膜を形成せしめてなる塗装金属板におい
て、該塗膜の乾燥塗膜厚（Ｔ）と該フッ化オレフィン系
樹脂粉末の平均粒径またはメジアン粒径（Ｒ）とがT/R
＝0.6〜２の範囲内にあり、かつ全樹脂に対する該フッ
化オレフィン系樹脂の含有割合が60wt％を越え85wt％以
下であることを特徴とする非粘着耐久性に優れた塗装金
属板である。Means for Solving the Problems The present invention, on a metal plate, applying a coating mainly composed of a mixture of fluorinated olefin resin powder and other resin,
In a coated metal plate formed by baking and forming a coating film, the dry coating film thickness (T) of the coating film and the average particle size or median particle size (R) of the fluorinated olefin resin powder are T / R.
= 0.6 to 2 and the content ratio of the fluorinated olefin-based resin to all resins is more than 60% by weight and 85% by weight or less. .
この中でフッ化オレフィン系樹脂は四フッ化エチレン
樹脂（PTFE）及び四フッ化エチレン・六フッ化プロピレ
ン共重合樹脂（FEP）からなる群から選ばれた１種また
は２種以上のものであり、且つその他の樹脂はポリエー
テルサルホン樹脂（PES）、ポリフェニレンスルフィド
樹脂（PPS）及びポリアミドイミド樹脂（PAI）からなる
群から選ばれた１種または２種以上のものである。Among them, the fluorinated olefin resin is one or more selected from the group consisting of tetrafluoroethylene resin (PTFE) and ethylene tetrafluoride / propylene hexafluoride copolymer resin (FEP). The other resin is one or more selected from the group consisting of polyethersulfone resin (PES), polyphenylene sulfide resin (PPS) and polyamideimide resin (PAI).
なお、上記の非粘着耐久性に優れるとは、ケチャップ
とソースとを混ぜたものを塗装金属板上にのせ、250℃
中に１時間放置後、室温下取り出して30分間放置し、次
にテッシュペーパーでその焦げ付いたものを拭き取り、
除去できなくなるまでの繰り返し回数が30回を越えるも
のを指す。It should be noted that the above-mentioned excellent non-adhesive durability means that a mixture of ketchup and sauce is placed on a painted metal plate, and is heated at 250 ° C.
After leaving it for 1 hour, take it out at room temperature and leave it for 30 minutes, then wipe off the burnt thing with tissue paper,
It means that the number of repetitions until it cannot be removed exceeds 30 times.
以下本発明を作用とともに詳細に説明する。 Hereinafter, the present invention will be described in detail together with its operation.
作用 一般的に表面自由エネルギーの異なる互いに相溶しな
い２種類以上の樹脂を混合した塗料の塗膜形態を考えた
場合、表面自由エネルギーの低い樹脂が上層に配向して
表面を覆う形態が熱力学的に最も安定した状態であると
考えられる。In general, when considering the coating form of a paint in which two or more types of resins with different surface free energies that are incompatible with each other are mixed, the form in which the resin with low surface free energy is oriented to the upper layer and covers the surface is thermodynamics. This is considered to be the most stable state.
従って、樹脂の中で表面自由エネルギーが低いとされ
るPTFEやFEPと、該エネルギーがそれらよりも高いその
他の樹脂の混合系においては、PTFE、FEPが自然的に上
層に配向するような層分離構造が予想される。すなわ
ち、PTFE、FEPの平均粒径もしくはメジアン粒径を乾燥
塗膜厚に対してあるレベル以上とした場合、PTFE粒子や
FEP粒子が溶剤蒸発後の塗膜形成時において表面近傍に
多量に配置し、それらが表面層を形成する。Therefore, in a mixed system of PTFE or FEP whose surface free energy is low among resins and other resins whose energy is higher than those, a layer separation in which PTFE and FEP are naturally oriented to the upper layer. Structure is expected. That is, when the average particle size or the median particle size of PTFE and FEP is set to a certain level or more with respect to the dry coating film thickness, PTFE particles and
A large amount of FEP particles are arranged near the surface when forming a coating film after evaporation of the solvent, and they form a surface layer.
本発明者らは特願昭63−243952において、フッ素系樹
脂量が５〜60wt％である時に非粘着性、潤滑性に優れて
いることを明らかにしたが、その後、さらに詳細に検討
を加えた結果、長期にわたって非粘着性を確保するには
フッ素系樹脂量が60wt％以上であることが好ましいこと
を突き止めた。The present inventors have disclosed in Japanese Patent Application No. 63-243952 that the non-adhesiveness and lubricity are excellent when the amount of the fluorine-based resin is 5 to 60% by weight. As a result, it has been found that the amount of the fluorine-based resin is preferably 60% by weight or more in order to secure non-adhesiveness over a long period of time.
乾燥塗膜厚がPTFE及びFEPの平均粒径またはメジアン
粒径に対してある範囲内にあり、かつ全樹脂に対する該
フッ化オレフィン系樹脂の含有割合を多くすることによ
って、塗膜の表面層に富化されたPTFE及びFEP層が形成
され、たとえ長期の使用により表面層のPTFE、FEPが脱
落していっても塗膜表層のPTFE、FEP層が非常に厚いた
め、非粘着性、潤滑性は満足し得る程度に確保できるこ
とを見いだした。The dry coating thickness is within a certain range with respect to the average particle size or median particle size of PTFE and FEP, and by increasing the content ratio of the fluorinated olefin-based resin to all resins, Enriched PTFE and FEP layers are formed.Even if PTFE and FEP on the surface layer have fallen off due to long-term use, the PTFE and FEP layers on the coating surface are very thick, so they are non-adhesive and lubricious. Found that it could be kept to a satisfactory degree.
その結果、密着性、耐熱性等が良好で、長期使用に耐
える安定な非粘着性、潤滑性を有する塗装金属板を得る
ことができた。As a result, it was possible to obtain a coated metal plate having good adhesion, heat resistance, and the like, and having stable non-adhesiveness and lubricity that can withstand long-term use.
ここで、明確かつ有効な２層構造形成を実現するため
には、PTFE及びFEPの平均粒径またはメジアン粒径に対
する乾燥塗膜厚の大きさは２倍以下であることが必要で
ある。２倍を越えると、長期使用による非粘着性劣化が
起こる。一方、乾燥塗膜厚がPTFE、FEPの平均粒径もし
くはメジアン粒径の0.6倍を下まわるとPTFE、FEPの層が
不均一になり、密着性、加工性の低下を招く。また、前
述のようにPTFE及びFEPの含有割合を60wt％を越えるこ
とも必要である。しかし含有割合が85wt％を越えると密
着性、加工性の低下や塗装外観の不良を招くため、好ま
しくない。Here, in order to realize a clear and effective formation of a two-layer structure, it is necessary that the size of the dry coating film thickness is not more than twice the average particle size or median particle size of PTFE and FEP. If it exceeds twice, non-adhesive deterioration due to long-term use occurs. On the other hand, if the thickness of the dried coating film is less than 0.6 times the average particle size or the median particle size of PTFE and FEP, the PTFE and FEP layers become non-uniform, resulting in a decrease in adhesion and workability. Further, as described above, it is necessary that the content ratio of PTFE and FEP exceeds 60 wt%. However, if the content exceeds 85% by weight, the adhesion and workability are reduced, and the appearance of the coating is poor.
以上のように塗膜物性を確保した上で、非粘着性及び
潤滑性の耐久性（長期安定性）を向上させるために、PT
FE及びFEPの平均粒径もしくはメジアン粒径に対する乾
燥塗膜厚の大きさは0.6倍〜２倍の範囲とする必要があ
るが、特に好ましくは0.75〜1.75倍の範囲が良い。同時
にPTFE及びFEPの含有量が60wt％を越え、85wt％以下で
あることも必要である点は上述の通りである。In order to improve the durability (long-term stability) of non-adhesiveness and lubricity after securing the coating film properties as described above,
The thickness of the dry coating film with respect to the average particle size or median particle size of FE and FEP needs to be in the range of 0.6 times to 2 times, and particularly preferably 0.75 to 1.75 times. At the same time, the content of PTFE and FEP needs to be more than 60 wt% and not more than 85 wt% as described above.
なお、PTFE、FEPと混合されるその他の樹脂として
は、塗料として適用できるものであれば熱可塑性、熱硬
化性にかかわらず如何なるものでもよく、代表例とし
て、ポリエステル系樹脂、アクリル系樹脂、エポキシ系
樹脂、ウレタン系樹脂などがある。As the other resin mixed with PTFE and FEP, any resin can be used regardless of thermoplasticity or thermosetting property as long as it can be applied as a coating material.Typical examples include polyester resin, acrylic resin, and epoxy resin. Resin and urethane resin.
特に、常用耐熱温度として200〜260℃程度を要求され
る耐熱用途の場合は、ポリエーテルサルホン樹脂（PE
S）、ポリフェニレンスルフィド樹脂（PPS）及びポリア
ミドイミド樹脂（PAI）を単独もしくはそれらを混合し
て用いるのがよい。In particular, in the case of heat-resistant applications that require a normal heat-resistant temperature of about 200 to 260 ° C, polyether sulfone resin (PE
S), polyphenylene sulfide resin (PPS) and polyamide imide resin (PAI) are preferably used alone or as a mixture thereof.
PTFE及びFEPに対するこれらの樹脂の混合比率は要求
特性に応じて決定される。なお、PTFE、FEPは混合して
用いてもよい。The mixing ratio of these resins to PTFE and FEP is determined according to the required properties. Note that PTFE and FEP may be used as a mixture.
顔料、溶剤に関しては特に限定するものではなく、一
般に塗料用として用いられるものの適用が可能である。
また塗料形態は、粉体塗料や分散塗料のいずれで使用し
てもよい。The pigment and the solvent are not particularly limited, and those generally used for paints can be applied.
The form of the paint may be either a powder paint or a dispersion paint.
金属板としては、冷延鋼板、Znメッキ鋼板およびZn合
金メッキ鋼板、Alメッキ鋼板およびAl合金メッキ鋼板、
Crメッキ鋼板（TFS）、Niメッキ鋼板、あるいはCuメッ
キ鋼板等の各種メッキ鋼板、およびアルミニウム板、チ
タン板、ステンレス板などが用いられ、必要に応じてア
ルカリ脱脂等により表面を清浄化した後、これらを直接
またはブラッシングロールによる表面研磨や化成処理を
施した後塗装される。Metal sheets include cold-rolled steel sheets, Zn plated steel sheets and Zn alloy plated steel sheets, Al plated steel sheets and Al alloy plated steel sheets,
Various types of plated steel plates such as Cr-plated steel plates (TFS), Ni-plated steel plates, or Cu-plated steel plates, and aluminum plates, titanium plates, and stainless steel plates are used. If necessary, clean the surface with alkali degreasing, etc. These are applied directly or after being subjected to surface polishing or chemical conversion treatment by a brushing roll.
化成処理としてはクロメート化成処理やリン酸塩化成
処理、複合酸化皮膜処理などがあり、クロメート化成処
理には電解クロメート、塗布型クロメート、反応型クロ
メート処理が、リン酸塩化成処理にはリン酸亜鉛処理、
リン酸鉄処理が、複合酸化皮膜処理にはニッケルとコバ
ルトを含有する処理などが適用できる。Chemical conversion treatments include chromate conversion treatment, phosphate conversion treatment, and composite oxide film treatment.Electrochromation, coating-type chromate, and reaction-type chromate treatment are used for chromate conversion treatment, and zinc phosphate is used for phosphate conversion treatment. processing,
The iron phosphate treatment and the treatment containing nickel and cobalt can be applied to the composite oxide film treatment.
また、耐食性、密着性向上等の目的で必要に応じてプ
ライマーを施すことも可能である。It is also possible to apply a primer as needed for the purpose of improving corrosion resistance and adhesion.
該塗料は、スプレー、ロールコート、フローコートな
どの方法にて塗装され、使用される樹脂に応じた温度条
件にて焼付を行い塗膜を形成させる。The paint is applied by a method such as spraying, roll coating, flow coating and the like, and is baked under a temperature condition according to the resin used to form a coating film.
実施例 第１表には各塗料組成に対して記載した塗装条件に従
いバーコーターにて塗装を行った時のサンプルの性能試
験結果を一覧表として記した。ここではアルカリ脱脂に
よる金属板の表面洗浄は行ったが、化成処理等の塗装前
処理及び、プライマー塗装は施さなかった。Examples Table 1 shows a list of performance test results of samples when coating was performed with a bar coater in accordance with the coating conditions described for each coating composition. Here, although the surface cleaning of the metal plate was performed by alkali degreasing, pre-coating treatment such as chemical conversion treatment and primer coating were not performed.
乾燥塗膜厚がフッ素系樹脂の平均粒径（メジアン粒径
でも値はほとんど同じ）の0.6〜2.0倍であり、かつフッ
素系樹脂の含有量が60wt％を越えて85wt％以下である場
合は優れた密着性に加え、非粘着性の長期耐久性に優れ
ていることがわかる（実施例１〜25）。If the dry coating thickness is 0.6 to 2.0 times the average particle size of the fluororesin (the value is almost the same even for the median particle size) and the content of the fluororesin is more than 60 wt% and less than 85 wt% It can be seen that, in addition to excellent adhesion, non-adhesive long-term durability is excellent (Examples 1 to 25).
これらの実施例と比較して乾燥塗膜厚がフッ素樹脂の
平均粒径の0.6倍を下回る比較例（表中のT/R値が0.6を
下回る例）に関しては密着性が劣り、一方２倍を越える
比較例（表中のT/R値が２を越える例）に関しては、非
粘着性の長期耐久性が劣ることがわかる。Compared to these examples, the adhesion was inferior to the comparative examples in which the dry coating thickness was less than 0.6 times the average particle size of the fluororesin (examples in which the T / R value in the table was less than 0.6), whereas the adhesion was twice as large. (Comparative Examples exceeding 2) (Examples in which the T / R value in the table exceeds 2) indicate that the non-adhesive long-term durability is inferior.
また、フッ素の含有量が85wt％を越えると密着性が著
しく低下し、反対に60wt％以下になっても非粘着性の長
期耐久性が劣ることがわかる。Further, it can be seen that when the fluorine content exceeds 85% by weight, the adhesiveness is remarkably reduced, and conversely when the fluorine content is 60% by weight or less, the long-term durability of non-adhesiveness is inferior.
すなわち、本発明により得られる塗装金属板は非粘着
性の長期耐久性（長期安定性）が良好であり、塗膜特性
に優れるという利点を有するものである。That is, the coated metal plate obtained according to the present invention has the advantage that the non-adhesive long-term durability (long-term stability) is good and the coating film properties are excellent.
なお、第１表に示す性能試験の評価方法は以下の通り
である。In addition, the evaluation method of the performance test shown in Table 1 is as follows.
密着性:NTカッターにて、試料表面に100個の碁盤目をカ
ットし、エリクセン試験機にて、7mm押しだし後テーピ
ングし、はくり状況を評価する。評価の判定方法は次の
通り。Adhesion: Cut 100 squares on the surface of the sample with an NT cutter, extrude 7 mm with an Erichsen tester, tap, and evaluate the peeling condition. The evaluation method is as follows.
○：全くはくりが認められず。：: No peeling was observed at all.
△:100個の碁盤目の内、５個未満のはくりが発生する。△: Less than 5 peelings out of 100 grids.
×:100個の碁盤目の内、５個以上のはくりが発生する。×: Five or more peelings occurred among the 100 grids.
非粘着耐久性：ケチャップとソースとを混ぜたものを塗
装金属板上にのせ、250℃中に１時間放置後、室温下に
取り出して30分間放置し、次にティッシュペーパーでそ
の焦げ付いたものをフッ素系樹脂粒子と共に拭き取る。
これを繰り返しケチャップとソースとを混ぜたものの焦
げ付けを拭き取り除去することが出来なくなるまでの回
数、すなわちフッ素系樹脂粒子の脱落がなくなるまでの
回数で評価判定する。Non-adhesive durability: Place a mixture of ketchup and sauce on a painted metal plate, leave it at 250 ° C for 1 hour, remove it at room temperature, leave it for 30 minutes, and then use the tissue paper to Wipe off with fluorine resin particles.
This is repeated until the ketchup and the source are mixed and the scorch is not wiped off and removed, that is, the number of times until the fluorine-based resin particles do not fall off is evaluated and determined.
発明の効果 本発明により得られた塗装金属板は密着性、加工性に
加え、長期使用に耐える安定な非粘着性及び潤滑性を有
している。 Effects of the Invention The coated metal sheet obtained by the present invention has stable non-adhesiveness and lubricity that can withstand long-term use, in addition to adhesion and workability.
フロントページの続き (72)発明者 金井 洋 千葉県君津市君津１番地 新日本製鐡株 式會社君津製鐡所内 (72)発明者 岡 襄二 千葉県君津市君津１番地 新日本製鐡株 式會社君津製鐡所内 (72)発明者 川端 伸一 千葉県君津市君津１番地 新日本製鐡株 式會社君津製鐡所内 (72)発明者 光田 敬治 兵庫県尼崎市塚口本町２―41―１ 川上 塗料株式会社内 (72)発明者 小原 利通 兵庫県尼崎市塚口本町２―41―１ 川上 塗料株式会社内 (72)発明者 菊田 佳男 千葉県茂原市東郷1900 三井東圧化学株 式会社千葉工業所内 (56)参考文献 特開 平２−92536（ＪＰ，Ａ) 特開 昭63−303220（ＪＰ，Ａ) 特開 平２−108531（ＪＰ，Ａ)Continued on the front page (72) Inventor Hiroshi Kanai 1 Kimitsu, Kimitsu City, Chiba Prefecture Inside Nippon Steel Corporation Kimitsu Works (72) Inventor Shoji Oka 1 Kimitsu, Kimitsu City, Chiba Prefecture New Nippon Steel Corporation Inside the company Kimitsu Works (72) Inventor Shinichi Kawabata 1 Kimitsu, Kimitsu City, Chiba Prefecture Inside the Nippon Steel Company Kimitsu Works (72) Inventor Keiji Mitsuda 2-4-1-1 Tsukaguchi Honcho, Amagasaki City, Hyogo Prefecture Kawakami Paint (72) Inventor Toshimichi Ohara 2-14-1 Tsukaguchi Honcho, Amagasaki City, Hyogo Prefecture Kawakami Paint Co., Ltd. (72) Inventor Yoshio Kikuta 1900 Togo, Togo, Mobara City, Chiba Prefecture 56) References JP-A-2-92536 (JP, A) JP-A-63-303220 (JP, A) JP-A-2-108531 (JP, A)
Claims (2)
とその他の樹脂との混合物を主成分とする塗料を塗布、
焼付けし、塗膜を形成せしめてなる塗装金属板におい
て、該塗膜の乾燥塗膜厚（Ｔ）と該フッ化オレフィン系
樹脂粉末の平均粒径またはメジアン粒径（Ｒ）とがT/R
＝0.6〜２の範囲内にあり、かつ全樹脂に対する該フッ
化オレフィン系樹脂の含有が60wt％を越え85wt％以下で
あることを特徴とする非粘着耐久性に優れた塗装金属
板。1. A paint mainly containing a mixture of a fluorinated olefin resin powder and another resin is applied on a metal plate,
In a coated metal plate formed by baking and forming a coating film, the dry coating film thickness (T) of the coating film and the average particle size or median particle size (R) of the fluorinated olefin resin powder are T / R.
A coated metal sheet having excellent non-adhesive durability, wherein the content is in the range of 0.6 to 2, and the content of the fluorinated olefin-based resin is more than 60% by weight and 85% by weight or less based on the whole resin.
ン樹脂（PTFE）及び四フッ化エチレン・六フッ化プロピ
レン共重合樹脂（FEP）からなる群から選ばれた１種ま
たは２種以上のものであり、且つその他の樹脂がポリエ
ーテルサルホン樹脂（PES）、ポリフェニレンスルフィ
ド樹脂（PPS）及びポリアミドイミド樹脂（PAI）からな
る群から選ばれた１種または２種以上のものである請求
項（１）記載の塗装金属板。2. The fluorinated olefin resin is at least one member selected from the group consisting of tetrafluoroethylene resin (PTFE) and ethylene tetrafluoride / hexafluoropropylene copolymer resin (FEP). And the other resin is one or more selected from the group consisting of polyethersulfone resin (PES), polyphenylene sulfide resin (PPS) and polyamideimide resin (PAI). 1) The coated metal plate according to the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2177490A JP2663196B2 (en) | 1990-07-06 | 1990-07-06 | Painted metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2177490A JP2663196B2 (en) | 1990-07-06 | 1990-07-06 | Painted metal plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0466171A JPH0466171A (en) | 1992-03-02 |
| JP2663196B2 true JP2663196B2 (en) | 1997-10-15 |
Family
ID=16031814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2177490A Expired - Lifetime JP2663196B2 (en) | 1990-07-06 | 1990-07-06 | Painted metal plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2663196B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001335963A (en) * | 2000-05-26 | 2001-12-07 | Yodogawa Steel Works Ltd | Heat resistant precoated metallic sheet |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0758095B2 (en) * | 1987-06-02 | 1995-06-21 | オイレス工業株式会社 | Method for manufacturing multi-layer bearing |
| JPH0675950B2 (en) * | 1988-09-30 | 1994-09-28 | 新日本製鐵株式会社 | Manufacturing method of painted metal plate |
| JPH02108531A (en) * | 1988-10-19 | 1990-04-20 | Nippon Steel Corp | Coated metal sheet excellent in nonadhesive property and far infrared ray radiation property |
-
1990
- 1990-07-06 JP JP2177490A patent/JP2663196B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0466171A (en) | 1992-03-02 |
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