JPS62262778A - Recoating method for pvc-coated steel sheet - Google Patents
Recoating method for pvc-coated steel sheetInfo
- Publication number
- JPS62262778A JPS62262778A JP10739886A JP10739886A JPS62262778A JP S62262778 A JPS62262778 A JP S62262778A JP 10739886 A JP10739886 A JP 10739886A JP 10739886 A JP10739886 A JP 10739886A JP S62262778 A JPS62262778 A JP S62262778A
- Authority
- JP
- Japan
- Prior art keywords
- pvc
- asphalt
- paint
- tape
- barrier coat
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003973 paint Substances 0.000 claims abstract description 43
- 239000010426 asphalt Substances 0.000 claims abstract description 34
- 230000004888 barrier function Effects 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000010425 asbestos Substances 0.000 claims abstract description 9
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 9
- 239000003208 petroleum Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 abstract description 26
- 238000000576 coating method Methods 0.000 abstract description 26
- 238000002845 discoloration Methods 0.000 abstract description 8
- 238000004299 exfoliation Methods 0.000 abstract 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 31
- 239000004800 polyvinyl chloride Substances 0.000 description 31
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 12
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 11
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010422 painting Methods 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 239000004014 plasticizer Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- -1 acrylic polyols Chemical class 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000008096 xylene Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000002568 Capsicum frutescens Nutrition 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- JKQQZJHNUVDHKP-FQJIPJFPSA-N Flurogestone acetate Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1CC[C@@](C(C)=O)(OC(=O)C)[C@@]1(C)C[C@@H]2O JKQQZJHNUVDHKP-FQJIPJFPSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 235000014548 Rubus moluccanus Nutrition 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- XLUBVTJUEUUZMR-UHFFFAOYSA-B silicon(4+);tetraphosphate Chemical compound [Si+4].[Si+4].[Si+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XLUBVTJUEUUZMR-UHFFFAOYSA-B 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 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
- XAEWLETZEZXLHR-UHFFFAOYSA-N zinc;dioxido(dioxo)molybdenum Chemical compound [Zn+2].[O-][Mo]([O-])(=O)=O XAEWLETZEZXLHR-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は屋根材及び建屋外壁等に用いられる塩ビ鋼板の
塗替え方法に関するものである〔従来の技術〕
塩ビ鋼板は亜鉛メッキ鋼板に接着剤としてウレタン系又
はメタアクリレート系樹脂を塗付したのち、塩化ビニル
プラスチゾル、塩化ビニルオルガノゾル等を５０〜５０
０μ程度塗付圧着したプレコートメタルで、屋根材、外
壁材等として広く使われている。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for repainting PVC steel plates used for roofing materials, building exterior walls, etc. [Prior Art] PVC steel plates are coated with galvanized steel plates using an adhesive. After applying urethane-based or methacrylate-based resin, apply vinyl chloride plastisol, vinyl chloride organosol, etc.
It is a pre-coated metal coated and crimped to a thickness of approximately 0μ, and is widely used as roofing material, exterior wall material, etc.
しかし屋根材等として使用されて１０〜１５年が経過す
ると、その被膜（塩と被膜）に、施工時あるいはその後
に発生した疵から白サビが発生する、また前記接着剤の
接着力が低下して鋼板から塩ビ被膜が剥離してくる等の
問題が生じるため適当な時期に塗装による塗替えが行わ
れている。However, after 10 to 15 years have passed since it has been used as a roofing material, white rust develops on the coating (salt and coating) due to scratches that occurred during or after construction, and the adhesive strength of the adhesive decreases. Because problems such as the PVC coating peeling off from steel plates occur, repainting is performed at appropriate times.
従来塩ビ鋼板の塗装ｊ塗替方法と塩ビ被膜の剥離部分を
二液型エポキシプライマーでタッチアップの後、二液型
ウレタン塗料を上塗塗装する方法がよく知られている。Conventional methods of repainting PVC steel plates and methods of touching up the peeled portions of the PVC film with a two-component epoxy primer and then applying a topcoat with a two-component urethane paint are well known.
（例えば日本電信電話株式会社の塩ビ鋼板塗替仕様）又
、塩化ビニル系塗料又は水系塗料を塗装する方法も一般
に知られている。(For example, Nippon Telegraph and Telephone Corporation's PVC steel plate repainting specifications) Additionally, a method of painting with a vinyl chloride paint or a water-based paint is also generally known.
しかしながら、二液型エポキシブライマーを使用し、二
液型ウレタン塗料を上塗塗装する方法は、塗膜が硬くな
りすぎることによる塩ビ被膜との伸び率のちがいや、塗
膜硬化過程での塗膜の収縮により、却って塩ビ被膜の剥
離を促進する場合がある。However, the method of using a two-component epoxy primer and applying a two-component urethane paint as an overcoat has problems such as the difference in elongation rate from the PVC coating due to the coating becoming too hard, and the fact that the coating film becomes too hard. Shrinkage may actually promote peeling of the PVC film.
又、塩化ビニル系塗料での塗装においては、塩ビ被膜中
に残存する可塑剤の移行による塩化ビニル系塗料の変色
・硬化不良等の欠点を有していた。Furthermore, in coating with vinyl chloride paint, there have been drawbacks such as discoloration and poor curing of the vinyl chloride paint due to migration of plasticizer remaining in the vinyl chloride coating.
更に、従来の方法は塩ビ被膜の底口をおさえる工程を取
らないため、底口からの溶剤の進入による塩ビ被膜と鋼
板間の付着力を弱める場合が多い。Furthermore, since the conventional method does not take the step of suppressing the bottom opening of the PVC coating, the adhesion between the PVC coating and the steel plate is often weakened due to the intrusion of solvent from the bottom opening.
等の問題点を有していた。It had the following problems.
本発明者らは、前記の如き実情から、底口をカバーしな
いかぎり、剥離につらなること、及び可塑剤の移行によ
る変色・硬化不良を解決しないかぎり問題が発生するこ
とに着目し、この２点の解決について鋭意研究を重ねた
結果、上塗塗装に先立って、予め底口にテープを貼付す
ること及び可塑剤の移行を防止するためのバリヤコート
をほどこすことにより問題を解決しうろことを見い出し
、この見知に基づいて本発明を完成した。Based on the above-mentioned circumstances, the present inventors focused on the fact that unless the bottom opening is covered, problems will occur unless the bottom opening is covered, and discoloration and curing failure due to plasticizer migration are not solved. As a result of intensive research into solving this problem, we discovered that the problem could be solved by attaching tape to the bottom opening and applying a barrier coat to prevent plasticizer migration before applying the top coat. , based on this finding, completed the present invention.
すなわち本発明は塩ビ鋼板を塗替えするに際し
くＡ）塩ビ被膜の底口にアスファルト系テープ又はアル
ミテープを貼付する工程
（Ｂ）上記テープを含み塩ビ被膜の一部又は全部にバリ
ヤコートを塗布する工程
（Ｃ）上記バリヤコートの上にアスファルト系アルミニ
ウムペイントを塗布する工程を上記の順に又は（Ａ）工
程を除いた順に含むことを特長とする塩ビ鋼板の塗替え
方法である。That is, the present invention involves the following steps when recoating a PVC steel plate: A) applying an asphalt tape or aluminum tape to the bottom opening of the PVC coating; and (B) applying a barrier coat to part or all of the PVC coating, including the above tape. This is a method for repainting a PVC steel sheet, characterized in that it includes step (C) of applying an asphalt-based aluminum paint on the barrier coat in the above order or in the order excluding step (A).
本発明の（Ａ）工程において塩ビ被膜の底口に貼付する
のに用いられるアスファルト系テープはアスファルト及
びゴムを主成分とし不織布・グラスウール等で補強した
ものであり、このようなものとしては、たとえば宇部興
産■製部品名ＲＡテープ、ＲＡレシートをあげることが
できる。The asphalt-based tape used to attach to the bottom opening of the PVC film in step (A) of the present invention is mainly composed of asphalt and rubber and reinforced with non-woven fabric, glass wool, etc. I can give you the name of the parts manufactured by Ube Industries, RA tape, and RA receipt.
又、アルミテープはアルミ箔にゴム系等の接着剤を付け
たものであり、このようなものとしては、たとえば一般
家庭の台所で水もれ防止のために使用されるアルミテー
プ等をあげることができる。Aluminum tape is made by attaching a rubber-based adhesive to aluminum foil, and examples of this type of tape include aluminum tape used in ordinary household kitchens to prevent water leaks. Can be done.
本発明においては（Ａ）工程は塩ビ被膜の底口を補修・
補強するために通常必須の工程であるが、塩ビ被膜の底
口が少なく補修・補強が不要な場合はこれを省いても差
し支えない。In the present invention, the step (A) is to repair and repair the bottom opening of the PVC coating.
This is normally an essential step for reinforcement, but it can be omitted if the bottom opening of the PVC coating is small and repair/reinforcement is not necessary.
本発明の（Ｂ）工程で用いられるバリヤコートは、塩ビ
被膜に残存する可塑剤が次工程で塗装されるアルミニウ
ムペイント塗膜に移行するのを防止するためのもので、
水系タイプのバリヤコート、塩ビ系のバリヤコート、二
液型ウレタン系バリヤコート等が使用できる。The barrier coat used in step (B) of the present invention is for preventing the plasticizer remaining in the PVC film from migrating to the aluminum paint film to be applied in the next step.
Water-based barrier coats, PVC-based barrier coats, two-component urethane-based barrier coats, etc. can be used.
水系タイプのバリヤコートとしては界面活性剤を用いず
に、親水基と疎水基を有する油長２０〜５０％の中・短
油アルキド樹脂を水中に分散させたしドロゾルを使用し
、顔料・金属ドライヤー等を加えて塗料化した常乾型ア
ルキドディスパージョンタイプや酢酸ビニルモノマー（
３０〜１００％）と、アクリル酸（０〜７０％）を乳化
剤を分散させた水中で乳化重合させたエマルション樹脂
（不揮発分４０〜５０％）を主成分とし、エマルション
樹脂単独もしくは、水溶性セルロースの水溶液で顔料を
分散させたものとエマルション樹脂の混合物等からなる
ビニル系のエマルションタイプの塗料、又ビニル系バリ
ヤコートとしては塩化ビニルモノマー（７０〜９０％）
、酢酸ビニルモノマー（１０〜３０％）及びマレイン酸
（０〜５％）の共重合物を溶剤で不揮発分３０〜５０％
に希釈したもの、及びこれに顔料を分散させたものから
なる溶剤型の塩化ビニル樹脂を主成分とする塗料があげ
られる。As a water-based barrier coat, we do not use a surfactant, but use a dorosol in which a medium- to short-oil alkyd resin with a hydrophilic group and a hydrophobic group with an oil length of 20 to 50% is dispersed in water, and pigments and metals are used. Air-drying alkyd dispersion type paints made by adding a dryer etc. and vinyl acetate monomer (
30-100%) and acrylic acid (0-70%) in water in which an emulsifier is dispersed, emulsion resin (non-volatile content 40-50%) is the main component, and emulsion resin alone or water-soluble cellulose is used as the main component. A vinyl emulsion type paint consisting of a mixture of a pigment dispersed in an aqueous solution and an emulsion resin, and vinyl chloride monomer (70 to 90%) as a vinyl barrier coat.
, a copolymer of vinyl acetate monomer (10-30%) and maleic acid (0-5%) with a solvent to reduce the non-volatile content to 30-50%.
Examples include paints whose main component is solvent-type vinyl chloride resin, which is diluted with polyvinyl chloride and pigments dispersed therein.
二液型ウレタン系バリヤコートとしてはボポリエステル
ボリオール又はアクリル酸、メタル酸及びこれらのエス
テル共重合物を主鎖としカルボキシル基、ヒドロキシル
基等の反応性官能基を側鎖につけたアクリルポリオール
を主成分とする基材成分とトリレンジイソシアネート（
ＴＤ■）、ヘキサメチレンシイ ゛ソシアネー
ト（ＨＭＤ Ｉ ＞ 、ジフェニールメタンジイソシア
ネート（ＮＤ Ｉ ）等のポリイソシアネートを主成分
とする硬化剤成分の二液よりなり、塗装時に混合使用す
るタイプの塗料で、ゴム・プラスチックの塗装に用いら
れる架橋密度の低い二液型ウレタン塗料がよく、−最に
橋梁塗装等に使用される架橋密度の高いものは不向きで
ある。Two-component urethane barrier coats mainly include polyester polyols or acrylic polyols with main chains made of acrylic acid, metal acids, and copolymers of these esters, and reactive functional groups such as carboxyl groups and hydroxyl groups attached to side chains. The base material component and tolylene diisocyanate (
It is a type of paint that is mixed and used at the time of painting, and consists of a two-component curing agent component whose main component is polyisocyanate such as TD■), hexamethylene diisocyanate (HMD I), and diphenylmethane diisocyanate (ND I). Two-component urethane paints with a low crosslinking density, which are used for coating rubber and plastics, are suitable, and those with a high crosslinking density, which are used for painting bridges, etc., are unsuitable.
本発明の（Ｃ）工程で用いられるアスファルト系アルミ
ニウムペイントは、通常アスファルト２５〜４０％、ア
ルミニウム粉１０〜１５％、繊維素１〜１０％、着色顔
料０〜１５％、浸透剤その他の添加剤０〜５％及び溶剤
分３０〜５０％（重量）からなるものが使用できるが、
アスファルトとしてナフテン系炭化水素を多量に含んだ
ナフテン基原油を蒸留して得られるナフテン系石油アス
ファルトを使用した、ナフテン系石油アスファルトく固
型分〉１００重量部に対してリーフィング型アルミフレ
ーク（固型分＞３０〜８０重量部およびアスベスト繊維
１０〜５０重量部を含有するアスファルト系アルミニウ
ムペイントが特に好ましい。The asphalt-based aluminum paint used in step (C) of the present invention usually contains 25 to 40% asphalt, 10 to 15% aluminum powder, 1 to 10% cellulose, 0 to 15% color pigment, penetrant and other additives. 0 to 5% and a solvent content of 30 to 50% (by weight) can be used, but
Asphalt, naphthenic petroleum asphalt obtained by distilling naphthenic crude oil containing a large amount of naphthenic hydrocarbons is used. Leafing-type aluminum flakes (solid Particularly preferred are asphaltic aluminum paints containing >30 to 80 parts by weight and 10 to 50 parts by weight of asbestos fibers.
使用するアスファルトとしてパラフィン系炭化水素を多
量に含んだパラフィン基原油を蒸留して得られるパラフ
ィン系石油アスファルトを使用した場合は、高温時に塗
装後の経時とともに低分子量領域のアスファルトが塗膜
表面に浮き出し塗膜は黒味を帯びた外観を呈することが
あるが、ナフテン系石油アスファルトを用いた前記アル
ミニウムペイントはかかる黒変現象が起らない。When paraffinic petroleum asphalt, which is obtained by distilling paraffin-based crude oil containing a large amount of paraffinic hydrocarbons, is used as asphalt, the asphalt in the low molecular weight range will loom out on the surface of the coating as time passes after painting at high temperatures. Although the paint film may have a blackish appearance, the aluminum paint using naphthenic petroleum asphalt does not exhibit such blackening phenomenon.
本発明に使用するり−フイング型アルミフレークは塗膜
の色調を保持し、シルバー観をもたせ熱反射率を高める
ためのものであり、通常の塗料に使用するものであれば
特に制限はされないが、その粒径は３０〜１２０μのも
のが好ましい。The wing-type aluminum flakes used in the present invention are used to maintain the color tone of the paint film, give it a silver appearance, and increase heat reflectance, and are not particularly limited as long as they can be used in ordinary paints. , the particle size is preferably 30 to 120 microns.
また、リーフィング型アルミフレークの含有量はナフテ
ン系石油アスファルト（固型分）１００重量部に対して
３０〜８０重量部（固型分）含有させるのが好ましい。The leafing type aluminum flakes are preferably contained in an amount of 30 to 80 parts by weight (solid content) per 100 parts by weight of naphthenic petroleum asphalt (solid content).
含有量が３０重量部未満の場合は色調およびシルバー観
の保持ができなくなり、逆に８０重量部を越えた場合は
塗膜の可焼性が低下する。When the content is less than 30 parts by weight, the color tone and silver appearance cannot be maintained, and on the other hand, when it exceeds 80 parts by weight, the scorbability of the coating film decreases.
本発明に使用するアスベスト繊維は繊維長が０．０５＋
ｕ＋〜２＋ａｍの範囲のものが好ましい、繊維長が０．
０！＋ｍｓ未満の場合は厚塗りした時、塗膜にクラック
が発生し易く、逆に２１以上の場合は塗膜面にアスベス
ト繊維が目立ちきれいな塗膜面になり難くなる。The asbestos fiber used in the present invention has a fiber length of 0.05+
Preferably, the fiber length is in the range of u+ to 2+am, and the fiber length is 0.
0! If it is less than +ms, cracks are likely to occur in the paint film when thickly applied, while if it is 21 or more, asbestos fibers will be noticeable on the paint film surface and it will be difficult to form a clean paint film surface.
また、アスベスト、繊維の含有量はナフテン系石油アス
ファルト（固型分）１００重量部に対し１０〜５０重量
部含有させるのが好ましい、含有量が１０重量部未満の
場合は厚塗りした時塗膜にクラックが発生しやすくなり
、逆に５０重量部を超えた場合は塗料が非常に高粘度に
なり塗装が困難となり均一塗膜が得られなくなる。In addition, the content of asbestos and fibers is preferably 10 to 50 parts by weight per 100 parts by weight of naphthenic petroleum asphalt (solid content).If the content is less than 10 parts by weight, the coating film will be thick when applied. On the other hand, if the amount exceeds 50 parts by weight, the viscosity of the paint becomes extremely high, making it difficult to coat and making it impossible to obtain a uniform coating.
本発明のアルミニウムペイントは前記の如き各成分を含
有してなるものであるが、その他に縮合リン酸アルミニ
ウム、亜鉛華、リンモリブデン酸アルミニウム、メタホ
ウ酸バリウム、モリブデン酸亜鉛、リン酸亜鉛、リン酸
カルシウム、リン酸ケイ素、シンクロメート、ストロン
チュームクロメート等の防錆顔料、スチレンブタジェン
共重合体、アクリロニトリルブタジェン共重合体、エチ
レンビニールアセテート、ポリブタジェン、ポリ塩化ビ
ニル、ポリビニールブチラール、天然植物ボイル油、石
油樹脂等の改質用樹脂、炭酸カルシウム、タルク、シリ
カ、マイカ等の体質顔料、不飽和低級脂肪酸エステル等
のサビ発生面への浸透剤、ミネラルスピリット、キシレ
ン、トルエン、ソルベントナフサ等の溶剤、紫外線吸収
剤、分散剤等の各種添加剤等を含有することができる。The aluminum paint of the present invention contains the above-mentioned components, and in addition, condensed aluminum phosphate, zinc white, aluminum phosphomolybdate, barium metaborate, zinc molybdate, zinc phosphate, calcium phosphate, Antirust pigments such as silicon phosphate, synchromate, strontium chromate, styrene butadiene copolymer, acrylonitrile butadiene copolymer, ethylene vinyl acetate, polybutadiene, polyvinyl chloride, polyvinyl butyral, natural vegetable boil oil, petroleum Resins for modifying resins, extender pigments such as calcium carbonate, talc, silica, mica, penetrants for rust-prone surfaces such as unsaturated lower fatty acid esters, solvents such as mineral spirits, xylene, toluene, solvent naphtha, and ultraviolet rays. It can contain various additives such as absorbents and dispersants.
本発明のバリヤコート及びアスファルト系アルミニウム
ペイントは、スプレー塗り、ローラー塗り、ハケ塗り、
ヘラ塗り等通常の塗装法で塗装可能で、バリヤコートは
５〜３０μ、アスファルト系アルミニウムペイントは１
５０〜３００μ塗装される。The barrier coat and asphalt-based aluminum paint of the present invention can be applied by spray coating, roller coating, brush coating,
Can be painted with normal painting methods such as spatula painting, barrier coat is 5-30μ, asphalt-based aluminum paint is 1
50-300μ coating.
実施例１
施工後１５年経過し、一部サビ及び剥離を生じている屋
根材に対し、塩ビ被膜のキズ発生箇所をシントーＲＡテ
ープ（神東塗料社製アスファルトテープ）で補強後、バ
リヤコート（神東塗料社製二液型ウレタン塗料）を塗布
（膜厚１５μ）さらにその上に下記配合のアスファルト
系アルミニウムペイントをエアレス塗装（膜厚２００μ
）した。Example 1 For a roofing material that has been partially rusted and peeled 15 years after construction, the scratched areas of the PVC coating were reinforced with Shinto RA tape (asphalt tape manufactured by Shinto Toyo Co., Ltd.), and then a barrier coat ( Apply a two-component urethane paint (manufactured by Shinto Toyo Co., Ltd.) (film thickness: 15 μm), and then apply airless paint (film thickness: 200 μm) with asphalt-based aluminum paint of the following composition.
)did.
このようにして塗替えした塩ビ鋼板は４年経過しても塩
ビ被膜の剥離、サビ等の発生がなく良好であった。The PVC steel sheet repainted in this manner remained in good condition with no peeling of the PVC film or occurrence of rust even after 4 years.
比較として従来より行われている下記（イ）〜（ハ）の
方法で同時期に塗装した。For comparison, coating was carried out at the same time using conventional methods (a) to (c) below.
（イ）二液型エポキシプライマー塗装後二液型ウレタン
塗料塗布（ロ）アスファルト系アルミペイント１回塗り
、（ハ）塩化ビニル系プライマー塗装後塩化ビニル系上
塗塗料塗布その結果いずれも１年経過したころから塩ビ
被膜のハクリが発生しだした。(a) Applying two-component urethane paint after painting with two-component epoxy primer (b) One coat of asphalt-based aluminum paint, (c) Applying vinyl chloride-based top coat after painting with vinyl chloride-based primer As a result, one year has passed for both. Around this time, peeling of the PVC film began to occur.
アスファルト系アルミニウムペイント配合す７テン系ス
トレートアスフアルト （注１） ５００重量
部ダーツング型フルミ７レーク （注２）
１５重量部アスベスト繊維 （注３）１５
ツノタルク３ｔｔ
ポｇ１クジエン ２ｔ＋ミネ
ラルスビリフト １５ ノ！
（注１）三共油化社製不揮発分６０％のミネラルスピリ
ット／キシレン＝３／１の溶
液（針入度２５）
（注２）東洋アルミニウム社製リーフィング型アルミペ
ースト不：Ｍ充分６５％
（注３ ） Ｊｏｈｎｓ−ｍｉｎｕｌｅｌｅ社製アスベ
スト繊維７ＴＳタイプ
実施例２
施工ｆ＆１０年経過の塩ビ鋼板に対し、下記配合の、
イ、水系エマルションタイプのバリヤコートを塗布（膜
厚２０μ）したもの
ロ、溶剤型塩ビ系バリヤコートを塗布（膜厚１０μ）し
たもの
ハ、二液型つレタン系バリヤコートを塗布（膜厚１０μ
）したもの
にそれぞれ下記配合のアスファルト系アルミニウムペイ
ントをエアレス塗装（膜厚２００μ）しな。Asphalt-based aluminum paint blended with 7-ten straight asphalt (Note 1) 500 parts by weight Dartsung type Fulmi 7 Lake (Note 2)
15 parts by weight Asbestos fiber (Note 3) 15
Tsunotalku 3tt Pog1 Kujien 2t + Mineral Subilift 15 no!
(Note 1) Sankyo Yuka Co., Ltd. Mineral spirit/xylene = 3/1 solution with non-volatile content of 60% (penetration level 25) (Note 2) Toyo Aluminum Co., Ltd. leafing type aluminum paste non-container: M enough 65% (Note 3) Asbestos fiber 7TS type made by Johns-Minulele Example 2 A PVC steel plate with the following composition applied after construction f and 10 years (film thickness 20μ). A two-component urethane barrier coat is applied (thickness: 10μ).
) were coated with airless paint (film thickness 200μ) with asphalt-based aluminum paint of the following composition.
このようにして塗替えした塩ビ鋼板は４年経過しても塩
ビ被膜の剥離、サビの発生等はなく、中でもウレタン系
バリヤコートを塗装したものは、変色もなく良好であっ
た。水系及び塩ビ系バリヤコートを塗装したものは、若
干の変色があるも良好であった。The PVC steel plates repainted in this manner did not peel off the PVC film or develop rust even after four years had passed, and in particular, those coated with a urethane barrier coat were in good condition with no discoloration. Those coated with water-based and vinyl chloride-based barrier coats were in good condition, although there was some discoloration.
ただし、バリヤコート塗装しない場合は可塑剤移行によ
る変色大であった。However, when no barrier coating was applied, there was significant discoloration due to plasticizer migration.
水系エマルションタイプ・バリヤコート配合酸 ビーア
クリルエマルシラン （注４） ３５重量部メチ
ルセルυ−ス （不揮発分５％）ｌＱ＋＋チ り
ン １
０ ｕ炭 酸 カルシウム
２０ ＩＩタ ル り
１０ ツノアンモニア水
２ ノＩ水
１３ 〃（注４）神東塗料社
製商品名人−１０９゜不揮発分４０％
溶剤型塩ビ系バリヤコート配合
塩化ビニル樹 脂 ソニス （注５） ６０ｆｉ
量部酢 酸 １チル １０
ノｌキ シ し ン
３
０ ７７（注５）鐘淵化学工業社製商品名
ネピラフク 不揮発分４０％
二液型ウレタン系バリヤコート配合
７り亨ル樹 脂ワニス （注６） ６０重
量部へキサメチレンジイソシアネート （注７）
１０ ノｌ酢 酸 エチル
５ ｔｔ酢 酸 １チル
１０ １ノセＵツル１１セテート
５ ＩＩキシレン１９ｎ
（注６）神東塗料社製商品名
ＫＳ−１０７−５０不揮発分５０％
（注７） 住友バ（Ｉル’ｌし９ン社製商品名・スミジ
ヱールＮ−７５不揮発分７５％
アスファルト系アルミニウムペイント配合パラフィン系
ｌｌ７−ンアス７Ｔルトワニス （注８） ５０重
量部９−フィフク 型１ルミニウムペースト （注
９） ３０ ノ１１スベスト繊 維
（注１０＞ １０ ツノミネラルスピリット
１０ ｕ（注８）シェル化学社製
不揮発分６０％溶液（キシレン／ミネラルスピリットｌ
／３）（注９ ） 東洋アルミニウム社製アルミペース
ト ０３００Ｍ不揮発分６５％
（注１０） Ｊｏｈｎｓ−ｍａｎｕｌｅｌｃ社製アス
ベスト繊維〔発明の効果〕
本発明の方法に従うと従来法の欠点である塩ビ被膜の剥
離、サビ、変色等の発生を防止できるので、塩ビ鋼板の
延命法として好適である。Water-based emulsion type/barrier coat compounded acid Be-acrylic emulsilane (Note 4) 35 parts by weight Methylcellu-su (non-volatile content 5%) lQ++ chili
N 1
0 u calcium carbonate
20 II Tarri
10 Horned ammonia water
2. Water
13 (Note 4) Shinto Toyo Co., Ltd. product Meijin-109゜Non-volatile content 40% Solvent type PVC barrier coat blended vinyl chloride resin Sonis (Note 5) 60fi
Parts of acetic acid 1 till 10
Nolki Shinn
3
0 77 (Note 5) Manufactured by Kanebuchi Kagaku Kogyo Co., Ltd., trade name: Nepirafuku 40% non-volatile content, 7-liquid resin varnish with two-component urethane barrier coat (Note 6) 60 parts by weight of hexamethylene diisocyanate (Note 7)
10 ml ethyl acetate
5 tt acetic acid 1 till
10 1 nose U vine 11 cetate
5 II Xylene 19n (Note 6) Product name KS-107-50 manufactured by Shinto Toyo Co., Ltd. Non-volatile content 50% (Note 7) Sumitomo Bar (Product name manufactured by I Ru'9 Co., Ltd.: Sumidil N-75 Non-volatile content 75 % Asphalt-based aluminum paint-containing paraffin-based ll7-n ass 7T varnish (Note 8) 50 parts by weight 9-5 Type 1 aluminum paste (Note 9) 30 No. 11 Sbest fiber
(Note 10> 10 Tsuno Mineral Spirit
10 u (Note 8) 60% non-volatile solution manufactured by Shell Chemical Co., Ltd. (xylene/mineral spirit l)
/3) (Note 9) Aluminum paste 0300M manufactured by Toyo Aluminum Co., Ltd. Non-volatile content 65% (Note 10) Asbestos fiber manufactured by Johns-Manulelc [Effects of the invention] According to the method of the present invention, peeling of the PVC coating, which is a drawback of the conventional method, is avoided. Since it can prevent the occurrence of rust, discoloration, etc., it is suitable as a method for extending the life of PVC steel sheets.
Claims (1)
及び 上記バリヤコートの上にアスファルト系アルミニウムペ
イントを塗布する工程 を上記の順に含むことを特徴とする塩ビ鋼板の塗替え方
法。 ２、塩ビ鋼板を塗替えするに際し、 塩ビ被膜の疵口にアスファルト系テープ又はアルミテー
プを貼付する工程、 上記テープを含み塩ビ被膜の一部又は全部にバリヤコー
トを塗布する工程及び 上記バリヤコートの上にアスファルト系アルミニウムペ
イントを塗布する工程 を上記の順に含むことを特徴とする塩ビ鋼板の塗替え方
法。 ３、アスファルト系アルミニウムペイントが、ナフテン
系石油アスファルト１００重量部、リーフィング型アル
ミフレーク３０〜８０重量部、およびアスベスト繊維１
０〜５０重量部含有してなるアスファルト系アルミニウ
ムペイントである特許請求の範囲第１項及び第２項記載
の塩ビ鋼板の塗替え方法。[Claims] 1. When recoating a PVC steel plate, the method includes the steps of applying a barrier coat to part or all of the PVC film and applying an asphalt-based aluminum paint on the barrier coat in the above order. A method for repainting a PVC steel plate. 2. When recoating a PVC steel plate, the process of applying asphalt tape or aluminum tape to the cracks in the PVC film, the process of applying a barrier coat to part or all of the PVC film including the above tape, and the process of applying the barrier coat to part or all of the PVC film, including the above-mentioned tape. A method for repainting a PVC steel plate, comprising the steps of applying an asphalt-based aluminum paint thereon in the above order. 3. The asphalt-based aluminum paint contains 100 parts by weight of naphthenic petroleum asphalt, 30 to 80 parts by weight of leafing-type aluminum flakes, and 1 part by weight of asbestos fibers.
The method for repainting a PVC steel plate according to claims 1 and 2, which is an asphalt-based aluminum paint containing 0 to 50 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10739886A JPS62262778A (en) | 1986-05-09 | 1986-05-09 | Recoating method for pvc-coated steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10739886A JPS62262778A (en) | 1986-05-09 | 1986-05-09 | Recoating method for pvc-coated steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62262778A true JPS62262778A (en) | 1987-11-14 |
Family
ID=14458134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10739886A Pending JPS62262778A (en) | 1986-05-09 | 1986-05-09 | Recoating method for pvc-coated steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62262778A (en) |
-
1986
- 1986-05-09 JP JP10739886A patent/JPS62262778A/en active Pending
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