JP3308205B2 - Transparent fluororesin coated stainless steel plate that prevents coating gloss change due to pressure - Google Patents
Transparent fluororesin coated stainless steel plate that prevents coating gloss change due to pressureInfo
- Publication number
- JP3308205B2 JP3308205B2 JP10024198A JP10024198A JP3308205B2 JP 3308205 B2 JP3308205 B2 JP 3308205B2 JP 10024198 A JP10024198 A JP 10024198A JP 10024198 A JP10024198 A JP 10024198A JP 3308205 B2 JP3308205 B2 JP 3308205B2
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- film
- steel plate
- coating
- transparent fluororesin
- 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 - Fee Related
Links
- 239000011248 coating agent Substances 0.000 title claims description 47
- 238000000576 coating method Methods 0.000 title claims description 47
- 229910001220 stainless steel Inorganic materials 0.000 title claims description 27
- 239000010935 stainless steel Substances 0.000 title claims description 27
- -1 polypropylene Polymers 0.000 claims description 21
- 239000000853 adhesive Substances 0.000 claims description 20
- 230000001070 adhesive effect Effects 0.000 claims description 20
- 229920001971 elastomer Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000005060 rubber Substances 0.000 claims description 16
- 239000004743 Polypropylene Substances 0.000 claims description 15
- 229920001155 polypropylene Polymers 0.000 claims description 15
- 239000002033 PVDF binder Substances 0.000 claims description 13
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 13
- 239000004925 Acrylic resin Substances 0.000 claims description 11
- 229920000178 Acrylic resin Polymers 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 11
- 230000001681 protective effect Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- SZNYYWIUQFZLLT-UHFFFAOYSA-N 2-methyl-1-(2-methylpropoxy)propane Chemical compound CC(C)COCC(C)C SZNYYWIUQFZLLT-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 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 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- WMYWOWFOOVUPFY-UHFFFAOYSA-L dihydroxy(dioxo)chromium;phosphoric acid Chemical compound OP(O)(O)=O.O[Cr](O)(=O)=O WMYWOWFOOVUPFY-UHFFFAOYSA-L 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、加圧による塗膜光沢変
化を防止した透明フッ素樹脂被覆ステンレス鋼板に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent fluororesin-coated stainless steel sheet which prevents a change in the gloss of a coating film due to pressure.
【０００２】[0002]
【従来技術】ステンレス鋼板をロ−ル成形法で建材や家
電製品の部材に加工すると、ステンレス鋼板は材質が硬
いので、成形ロ−ルのしごきを受けた部分にかじり傷が
生じる。このかじり傷はステンレス鋼板の表面が美麗な
ため、著しく目立ち、外観を損ねる。また、ステンレス
鋼板製の建材や部材を取り扱う際に素手で触れたりする
と、指紋が容易に付着し、屋外で使用する場合には汗に
含まれている塩素イオンにより錆が生じ易い。2. Description of the Related Art When a stainless steel plate is processed into a building material or a member of a home electric appliance by a roll forming method, the stainless steel plate is hard, so that the portion of the stainless steel plate which has been subjected to the ironing of the forming roll is scuffed. The galling is noticeable because the surface of the stainless steel plate is beautiful and impairs the appearance. In addition, when handling building materials and members made of stainless steel plates, if they are touched with bare hands, fingerprints are easily attached, and when used outdoors, rust is easily generated by chlorine ions contained in sweat.
【０００３】そこで、このような問題を防止するため、
ステンレス鋼板の表面にクロメ−ト皮膜を形成した後、
耐候性、耐汚染性に優れたポリフッ化ビニリデン樹脂塗
膜のような透明フッ素樹脂塗膜を１５〜３０μｍ形成す
ることが行われている（特願平６−６２０５４号）。し
かし、ポリフッ化ビニリデン樹脂塗膜は塗膜が柔らか
く、傷付き易いため、成形ロ−ルのしごきにより傷が生
じ、耐食性が低下してしまうという欠点があった。この
耐傷付き性の欠点はポリフッ化ビニリデン樹脂塗膜にポ
リフッ化ビニリデン樹脂より融点の高いポリ四フッ化エ
チレン（ＰＴＦＥ）粉末のような有機骨材やＳｉＣのよ
うな無機骨材を添加するとか、塗膜をアクリル樹脂含有
ポリフッ化ビニリデン樹脂に変更して、同様にポリフッ
化ビニリデン樹脂や熱可塑性アクリル樹脂より融点の高
い有機もしくは無機骨材を添加したりすれば改善される
（特開平９−２２１６２１号）。In order to prevent such a problem,
After forming a chromate film on the surface of stainless steel sheet,
A transparent fluororesin coating such as a polyvinylidene fluoride resin coating excellent in weather resistance and stain resistance is formed in a thickness of 15 to 30 μm (Japanese Patent Application No. 6-62054). However, the polyvinylidene fluoride resin coating film has a drawback that the coating film is soft and easily damaged, so that the ironing of the molding roll causes damage and the corrosion resistance is reduced. The disadvantage of the scratch resistance is that an organic aggregate such as polytetrafluoroethylene (PTFE) powder having a melting point higher than that of the polyvinylidene fluoride resin or an inorganic aggregate such as SiC is added to the polyvinylidene fluoride resin coating film. This can be improved by changing the coating film to a polyvinylidene fluoride resin containing an acrylic resin and adding an organic or inorganic aggregate having a melting point higher than that of the polyvinylidene fluoride resin or the thermoplastic acrylic resin (Japanese Patent Application Laid-Open No. 9-221621). issue).
【０００４】このような骨材添加透明フッ素樹脂塗膜の
ステンレス鋼板への形成は、金属帯の連続塗装装置で外
観となる表面側にだけ実施するが、塗装後ステンレス鋼
板をいったんコイルに巻取って、それを巻きほどくと、
塗膜に光沢の高い部分が存在し、外観が損なわれてしま
うという問題があった。この光沢の高くなった部分は現
場的にはプレッシャ−マ−クと呼んでいるが、このプレ
ッシャ−マ−クは一般に塗装金属帯の塗膜が柔らかく、
その塗膜に加わる圧力が高い場合に発生する。すなわ
ち、ステンレス鋼板の巻取りの際、表面側の凹凸を有す
る塗膜は裸の鋼板裏面と接触するが、巻取り時に大きな
圧力を加えられるので、塗膜が柔らかいと、凸部は鋼板
裏面により変形させられて平坦になり、その変形部分の
光沢が高くなるのである。このため、塗膜光沢の部分的
増大は塗装コイルや切板を保管しておいても発生する。
なお、プレッシャ−マ−クは、塗膜表面の光沢が高くな
る場合だけでなく、塗膜表面に微細な擦り傷などが発生
して、光沢が部分的に低くなる場合もプレッシャ−マ−
クと呼んでいる。[0004] The formation of such an aggregate-added transparent fluororesin coating film on a stainless steel plate is carried out only on the front side of the metal strip with a continuous coating apparatus, but after coating, the stainless steel plate is once wound into a coil. And unwind it,
There was a problem that a high gloss portion was present in the coating film and the appearance was impaired. This glossy part is called a pressure mark in the field, but this pressure mark is generally soft in the coating of the painted metal band.
Occurs when the pressure applied to the coating film is high. In other words, when winding a stainless steel plate, the coating film having irregularities on the front side comes in contact with the bare steel plate back surface, but a large pressure is applied at the time of winding. It is deformed and flattened, and the gloss of the deformed part is increased. For this reason, a partial increase in the gloss of the coating film occurs even when the painted coil or the cut plate is stored.
The pressure mark is used not only when the gloss of the coating film surface becomes high, but also when the gloss becomes partially low due to fine scratches on the coating film surface.
We call it.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、加圧による
塗膜光沢変化を防止した透明フッ素樹脂被覆ステンレス
鋼板を提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a transparent fluororesin-coated stainless steel sheet in which a change in the gloss of a coating film due to pressure is prevented.
【０００６】[0006]
【課題を解決するための手段】本発明は、アクリル樹脂
とポリフッ化ビニリデン樹脂とからなる透明フッ素樹脂
塗膜を形成したステンレス鋼板において、塗膜表面にゴ
ム系の粘着剤を介してポリプロピレンフィルムをラミネ
−トした。ポリプロピレンフィルムは厚さが０.０２〜
０.１ｍｍ、粘着剤の付着量がゴム成分で３〜１０ｇ／
ｍ2であることが好ましく、また、透明フッ素樹脂塗膜
に対するポリプロピレンフィルムの粘着強度はフィルム
幅２０ｍｍ当たり１００〜３００ｇであるのが好まし
い。SUMMARY OF THE INVENTION The present invention relates to a stainless steel sheet on which a transparent fluororesin coating film made of an acrylic resin and a polyvinylidene fluoride resin is formed, wherein a polypropylene film is coated on the coating film surface with a rubber-based adhesive. Laminated. The thickness of the polypropylene film is 0.02 ~
0.1 mm, adhesion amount of adhesive is 3 to 10 g /
m 2 , and the adhesive strength of the polypropylene film to the transparent fluororesin coating is preferably 100 to 300 g per 20 mm of the film width.
【０００７】[0007]
【作用】本発明者らは、アクリル樹脂とポリフッ化ビニ
リデン樹脂とからなる透明フッ素樹脂塗膜を形成したス
テンレス鋼板をコイルに巻取ったり、コイルや切板を保
管したりした場合に発生する部分的塗膜光沢変化（以下
プレッシャ−マ−クと言う）を防止する方法として、塗
膜表面に保護フィルムをラミネ−トする方法を試みた。
しかし、従来より一般に使用されているポリエチレンフ
ィルムにアクリル樹脂系の粘着剤を塗布したものをラミ
ネ−トして、コイルに巻取ると、プレッシャ−マ−クは
さらに強調され、逆効果になってしまうことが判明し
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present inventors have found that a stainless steel plate formed with a transparent fluororesin coating film composed of an acrylic resin and a polyvinylidene fluoride resin is wound around a coil, or a portion generated when the coil or a cut plate is stored. As a method for preventing a change in the gloss of a coating film (hereinafter referred to as a pressure mark), a method of laminating a protective film on the coating film surface was attempted.
However, when a polyethylene film, which has been generally used in the past, is coated with an acrylic resin-based pressure-sensitive adhesive, and then laminated and wound on a coil, the pressure mark is further emphasized, resulting in an adverse effect. It turned out to be.
【０００８】そこで、本発明者らは、この光沢増大の原
因を解明すべく、保護フィルムと粘着剤の樹脂を種々変
更して実験したところ、粘着剤の弾性の影響が著しく大
きく、粘着剤をゴム系のものにすれば光沢が増大しない
ことを見いだしたのである。また、フィルム樹脂も若干
影響していて、フィルムをポリプロピレン樹脂のものに
すれば光沢増大防止に有効であることも見いだしたので
ある。すなわち、保護フィルムとして、裏面にゴム系粘
着剤を塗布したポリプロピレンフィルムをラミネ−トす
れば、光沢増大を防止できるのである。この保護フィル
ムのラミネ−トとともに、透明フッ素樹脂塗膜にポリ四
フッ化エチレン粉末のような有機骨材やＳｉＣ粉末、ガ
ラス粉末のような無機骨材を添加すると、プレッシャ−
マ−クの防止は一層確実になる。なお、透明フッ素樹脂
塗膜に骨材を添加する場合、塗膜組成はアクリル樹脂
（Ａ）とポリフッ化ビニリデン樹脂（Ｂ）とを重量比で
Ａ／Ｂ＝２０／８０〜５０／５０の範囲にするのが好ま
しい。Ａ／Ｂが２０／８０より小さいと、塗膜密着性が
低下し、５０／５０より大きくなると、骨材を２０重量
％添加した場合、塗膜中に均一に分散させることが困難
になる。[0008] The inventors of the present invention conducted various experiments in which the protective film and the adhesive resin were changed in order to elucidate the cause of the gloss increase. It was found that the luster does not increase the gloss. In addition, they have found that the film resin has a slight effect, and that the use of a polypropylene resin film is effective in preventing gloss increase. That is, if a protective film is laminated with a polypropylene film having a rubber-based adhesive applied to the back surface, an increase in gloss can be prevented. When an organic aggregate such as polytetrafluoroethylene powder or an inorganic aggregate such as SiC powder or glass powder is added to the transparent fluororesin coating together with the laminate of the protective film, the pressure is reduced.
Prevention of marks is more reliable. When an aggregate is added to the transparent fluororesin coating, the coating composition is such that the acrylic resin (A) and the polyvinylidene fluoride resin (B) are in a weight ratio of A / B = 20/80 to 50/50. It is preferred that When A / B is less than 20/80, the adhesion of the coating film is reduced, and when it is more than 50/50, it becomes difficult to uniformly disperse the coating in the coating film when 20% by weight of the aggregate is added.
【０００９】ゴム系の粘着剤としては、とくに限定はな
く、例えば、イソプレンゴム、スチレン−ブタジエンゴ
ム（ＳＢＲ）、スチレン−ブタジエンブロック共重合体
ゴム（ＳＢＳ）、スチレン−イソプレンブロック共重合
体ゴム、ブチルゴム、ポリイソブチレンゴム、シリコ−
ンゴム、ポリビニルイソブチルエ−テルゴム、クロロプ
レンゴム、ニトリルゴム、グラフトゴム、アタクチック
ポリプロピレンゴム、ポリエステルゴム、ポリウレタン
ゴムなどを使用すればよい。The rubber-based pressure-sensitive adhesive is not particularly limited. For example, isoprene rubber, styrene-butadiene rubber (SBR), styrene-butadiene block copolymer rubber (SBS), styrene-isoprene block copolymer rubber, Butyl rubber, polyisobutylene rubber, silicone
Rubber, polyvinyl isobutyl ether rubber, chloroprene rubber, nitrile rubber, graft rubber, atactic polypropylene rubber, polyester rubber, polyurethane rubber and the like may be used.
【００１０】ポリプロピレンフィルムは、厚さを０.０
２〜０.１ｍｍにするのが好ましい。フィルムの製造に
おいて、厚さを０.０２ｍｍより薄くするのは困難であ
り、逆に０.１ｍｍより厚くすると、ラミネ−ト製品が
嵩高になってしまう。粘着剤の付着量はゴム成分で３〜
１０ｇ／ｍ2にするのが好ましい。付着量が３ｇ／ｍ2よ
り少ないと、プレッシャ−マ−ク防止が困難になり、１
０ｇ／ｍ2より多くすると、粘着強度が大きくなり過ぎ
て、成形加工後の剥離が困難になる。透明フッ素樹脂塗
膜に対するポリプロピレンフィルムの粘着強度はフィル
ム幅２０ｍｍ当たり１００〜３００ｇにするのが好まし
い。粘着力が１００ｇより小さいと、粘着強度が不十分
なため、保護フィルムとしての役目を果たさず、３００
ｇより大きくすると、剥離困難になる。The polypropylene film has a thickness of 0.0
It is preferable to set the thickness to 2 to 0.1 mm. In the production of a film, it is difficult to make the thickness thinner than 0.02 mm, while if it is thicker than 0.1 mm, the laminated product becomes bulky. The adhesion amount of the adhesive is 3 ~
It is preferably 10 g / m 2 . When the amount of adhesion is less than 3 g / m 2 , it is difficult to prevent pressure mark, and
When it is more than 0 g / m 2 , the adhesive strength becomes too large, and it becomes difficult to peel off after molding. The adhesive strength of the polypropylene film to the transparent fluororesin coating is preferably 100 to 300 g per 20 mm of the film width. When the adhesive strength is less than 100 g, the adhesive strength is insufficient, so that it does not serve as a protective film, and
If it is larger than g, peeling becomes difficult.
【００１１】透明フッ素樹脂被覆ステンレス鋼板の保護
フィルムラミネ−トは、連続塗装装置の出側にラミネ−
ト装置を配置して、ステンレス鋼板の塗装後コイルに巻
取る前に実施する。保護フィルムのポリプロピレンフィ
ルムにはゴム系粘着剤が塗布してあるものを用いて、ス
テンレス鋼板がかなり冷却してからラミネ−トする。ス
テンレス鋼板の温度が高いと、粘着剤の溶剤が揮発し、
フィルムの内部に気泡を形成するからである。[0011] The protective film laminate of the transparent fluororesin-coated stainless steel plate is provided on the output side of the continuous coating apparatus.
After the stainless steel plate is coated, it is performed before winding the coil. The polypropylene film of the protective film coated with a rubber-based adhesive is used, and after the stainless steel plate is cooled considerably, it is laminated. When the temperature of the stainless steel plate is high, the solvent of the adhesive volatilizes,
This is because bubbles are formed inside the film.
【００１２】[0012]
【実施例】ＳＵＳ４３０ステンレス鋼板（板厚０.５ｍ
ｍ、＃４仕上げ）にアルカリ脱脂を施して、水洗した
後、リン酸亜鉛処理剤で処理して、水洗、乾燥した。そ
の後、リン酸−クロム酸系のクロメ−ト処理液をロ−ル
コ−タ−で塗布して、１００℃で乾燥し、全Ｃｒ量が２
０ｍｇ／ｍ2のクロメ−ト皮膜を形成した。次に、この
クロメ−ト皮膜の上に有機骨材と無機骨材とを配合した
ポリフッ化ビニリデン樹脂−アクリル樹脂の透明フッ素
樹脂塗料（ポリフッ化ビニリデン樹脂／アクリル樹脂＝
７０／３０）を塗装して、２５０℃で焼き付け、水冷し
た。この塗膜厚は２０μｍであった。その後、この塗膜
の上にゴム系粘着剤を塗布したポリプロピレンフィルム
をラミネ−トして、コイルに巻取った。このコイルには
プレッシャ−マ−クが発生していなかった。[Example] SUS430 stainless steel sheet (sheet thickness 0.5 m)
m, # 4 finish), washed with water, treated with a zinc phosphate treating agent, washed with water and dried. Thereafter, a phosphoric acid-chromic acid-based chromate treatment solution was applied with a roll coater, and dried at 100 ° C. to reduce the total Cr content to 2%.
A chromate film of 0 mg / m 2 was formed. Next, a transparent fluororesin paint (polyvinylidene fluoride resin / acrylic resin = polyvinylidene fluoride resin / acrylic resin) in which an organic aggregate and an inorganic aggregate are blended on the chromate film is used.
70/30), baked at 250 ° C., and cooled with water. This coating thickness was 20 μm. Thereafter, a polypropylene film having a rubber-based pressure-sensitive adhesive applied thereon was laminated, and wound around a coil. No pressure mark was generated in this coil.
【００１３】[0013]
【比較例】実施例において、保護フィルムとして、ポリ
プロピレンフィルムまたはポリエチレンフィルムにアク
リル樹脂系粘着剤を塗布したもの、あるいはポリエチレ
ンフィルムにゴム系粘着剤を塗布したものを使用した。Comparative Example In the examples, a protective film obtained by applying an acrylic resin-based adhesive to a polypropylene film or a polyethylene film or a rubber film-based adhesive applied to a polyethylene film was used.
【００１４】以上のようにして得られた片面塗装透明フ
ッ素樹脂被覆ステンレス鋼板に対して、耐プレッシャ−
マ−ク試験とフィルム粘着強度測定試験を次の要領で実
施した。表１に耐プレッシャ−マ−ク試験の結果を、表
２にフィルム粘着強度測定試験の結果を示す。The single-sided transparent fluororesin-coated stainless steel sheet obtained as described above is pressure-resistant.
A mark test and a film adhesive strength measurement test were performed as follows. Table 1 shows the results of the pressure-mark resistance test, and Table 2 shows the results of the film adhesive strength measurement test.
【００１５】（１）耐プレッシャ−マ−ク試験 複数の試験片（１００×１００ｍｍ）の塗膜光沢度を測
定した後、表面の塗膜と裏面の裸ステンレス鋼板とが接
触するように試験片を積み重ねて、上下から３０ｋｇ／
ｃｍ2の圧力で加圧した状態で４０℃の雰囲気中に２４
時間放置し、水冷した。そして、水冷後再び塗膜光沢度
を測定して、試験前のものと比較し、試験前に比べて光
沢が最大２しか高くならないものを記号○、２以上、５
以下高くなったものを記号△、５以上高くなったものを
記号×で評価した。 （２）フィルム粘着強度測定試験 前記耐プレッシャ−マ−ク試験で光沢測定後の試験片フ
ィルムに幅２０ｍｍのカットを入れて、一端をクリップ
で挟み、２００ｍｍ／ｍｉｎの速度で剥離しながら、剥
離時の荷重をバネ秤で測定し、その値をフィルム粘着強
度とした。(1) Pressure Mark Resistance Test After measuring the gloss of the coating film of a plurality of test pieces (100 × 100 mm), the test pieces were so contacted that the coating film on the front surface and the bare stainless steel plate on the back surface were in contact with each other. Are piled up and 30kg /
in a 40 ° C. atmosphere with a pressure of 2 cm 2.
It was left for a while and cooled with water. Then, after cooling with water, the gloss of the coating film was measured again and compared with that before the test.
Below, those with higher marks were evaluated with the symbol △, and those with 5 or higher marks were evaluated with the symbol x. (2) Film adhesion strength measurement test The test piece film after gloss measurement in the pressure-mark resistance test was cut into a 20 mm width cut, one end was clipped, and peeled off at a speed of 200 mm / min. The load at that time was measured with a spring balance, and the value was defined as the film adhesive strength.
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【表２】 （注）符号Ａ−１からＡ−３は表１のＡの条件でラミネ
−トしたものであり、符号Ｂ−１からＢ−３も表１のＢ
の条件でラミネ−トしたものである。また、Ｉ−１から
Ｉ−３も表１のＩの条件でラミネ−トしたものである。[Table 2] (Note) Symbols A-1 to A-3 are laminated under the condition of A in Table 1, and symbols B-1 to B-3 are also B in Table 1.
It was laminated under the conditions of Further, I-1 to I-3 were also laminated under the conditions of I in Table 1.
【００１８】[0018]
【発明の効果】以上のように、本発明は、ステンレス鋼
板の被覆透明フッ素樹脂塗膜が柔らかいアクリル樹脂配
合ポリフッ化ビニリデン樹脂であっても、塗膜表面にゴ
ム系粘着剤を介してポリプロピレンフィルムをラミネ−
トしておくと、金属帯の連続塗装装置でステンレス鋼板
を塗装の際にコイルに巻取っても、塗膜光沢度の高くな
ったプレッシャ−マ−クは発生しなくなる。As described above, according to the present invention, even if the transparent fluororesin coating on the stainless steel plate is a soft acrylic resin-containing polyvinylidene fluoride resin, the polypropylene film is coated on the surface of the coating with a rubber-based adhesive. Lamine
If the stainless steel plate is wound around a coil during coating with a metal band continuous coating apparatus, a pressure mark having a high coating film glossiness will not be generated.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ２３Ｃ 28/00 Ｃ２３Ｃ 28/00 Ｃ (72)発明者 圓谷 浩 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 福本 博光 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 (56)参考文献 特開 平10−46098（ＪＰ，Ａ) 特開 平８−230095（ＪＰ，Ａ) 特開 平６−184491（ＪＰ，Ａ) 特開 平５−309787（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 15/08 B05D 7/14 - 7/24 ────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification code FI C23C 28/00 C23C 28/00 C (72) Inventor Hiroshi Enya 1 Nisshin Steel Co., Ltd. at 7 Takamachi Shinmachi, Ichikawa City, Chiba Prefecture Research Laboratory Coating / Composite Materials Research Department (72) Inventor Hiromitsu Fukumoto 1 Nisshin Steel Co., Ltd., Co., Ltd., Co., Ltd. (JP, A) JP-A-8-230095 (JP, A) JP-A-6-1844491 (JP, A) JP-A-5-309787 (JP, A) (58) Fields investigated (Int. Cl. 7) B32B 15/08 B05D 7/14-7/24
Claims (3)
樹脂とからなる透明フッ素樹脂塗膜を形成したステンレ
ス鋼板において、塗膜表面にゴム系の粘着剤を介してポ
リプロピレンフィルムをラミネ−トしたことを特徴とす
る加圧による塗膜光沢変化を防止した透明フッ素樹脂被
覆ステンレス鋼板。1. A stainless steel sheet having a transparent fluororesin coating film formed of an acrylic resin and a polyvinylidene fluoride resin, wherein a polypropylene film is laminated on the coating film surface via a rubber-based adhesive. Transparent fluororesin-coated stainless steel plate that prevents the gloss change of the coating film due to applied pressure.
０２〜０.１ｍｍであり、かつ、粘着剤の付着量がゴム
成分で３〜１０ｇ／ｍ2であることを特徴とする請求項
１に記載の加圧による塗膜光沢変化を防止した透明フッ
素樹脂被覆ステンレス鋼板。2. The method according to claim 1, wherein the thickness of the polypropylene film is 0.5.
2. The transparent fluorine of claim 1, wherein a thickness of the adhesive is 3 to 10 g / m < 2 > in a rubber component, and the gloss of the coating is prevented by pressurization. Resin coated stainless steel plate.
ピレンフィルムの粘着強度がフィルム幅２０ｍｍ当たり
１００〜３００ｇであることを特徴とする請求項１に記
載の加圧による塗膜光沢変化を防止した透明フッ素樹脂
被覆ステンレス鋼板。3. The transparent fluororesin according to claim 1, wherein the adhesive strength of the polypropylene film to the transparent fluororesin coating is 100 to 300 g per 20 mm in film width. Coated stainless steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024198A JP3308205B2 (en) | 1998-03-27 | 1998-03-27 | Transparent fluororesin coated stainless steel plate that prevents coating gloss change due to pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024198A JP3308205B2 (en) | 1998-03-27 | 1998-03-27 | Transparent fluororesin coated stainless steel plate that prevents coating gloss change due to pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11277677A JPH11277677A (en) | 1999-10-12 |
| JP3308205B2 true JP3308205B2 (en) | 2002-07-29 |
Family
ID=14268765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10024198A Expired - Fee Related JP3308205B2 (en) | 1998-03-27 | 1998-03-27 | Transparent fluororesin coated stainless steel plate that prevents coating gloss change due to pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3308205B2 (en) |
-
1998
- 1998-03-27 JP JP10024198A patent/JP3308205B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11277677A (en) | 1999-10-12 |
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