JPS62289268A - Coating method for molded resin form - Google Patents
Coating method for molded resin formInfo
- Publication number
- JPS62289268A JPS62289268A JP13317486A JP13317486A JPS62289268A JP S62289268 A JPS62289268 A JP S62289268A JP 13317486 A JP13317486 A JP 13317486A JP 13317486 A JP13317486 A JP 13317486A JP S62289268 A JPS62289268 A JP S62289268A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- primer
- resin
- conductive
- paint
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 60
- 239000011347 resin Substances 0.000 title claims abstract description 60
- 238000000576 coating method Methods 0.000 title claims abstract description 41
- 239000003973 paint Substances 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 238000009503 electrostatic coating Methods 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 21
- 235000019646 color tone Nutrition 0.000 description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 8
- -1 Bengara Substances 0.000 description 7
- 238000004040 coloring Methods 0.000 description 7
- 238000010422 painting Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 229910052623 talc Inorganic materials 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000004408 titanium dioxide Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229920005749 polyurethane resin Polymers 0.000 description 4
- 239000000454 talc Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 239000004640 Melamine resin Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000007592 spray painting technique Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000003981 vehicle 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
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 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
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000002635 aromatic organic solvent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- KNXVOGGZOFOROK-UHFFFAOYSA-N trimagnesium;dioxido(oxo)silane;hydroxy-oxido-oxosilane Chemical compound [Mg+2].[Mg+2].[Mg+2].O[Si]([O-])=O.O[Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O KNXVOGGZOFOROK-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
本発明は電気不良導体である樹脂成形物の塗装方法に関
するものである。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method of coating a resin molded article that is a poor electrical conductor.
樹脂成形物は軽量で錆びないなどの理由から、自動車部
品、電気部品、事務機器部品等に広く使用されている。Resin molded products are widely used in automobile parts, electrical parts, office equipment parts, etc. because they are lightweight and do not rust.
これらの樹脂成形物は美観や品質を高める上から着色す
る必要があり、これまでに表面を着色塗膜で皮膜する塗
装方式、樹脂中に着色材を配合してから成形する原料着
色方式、その他にメッキ処理を施すメッキ方式等が工業
的に利用されている。These resin molded products need to be colored to improve their appearance and quality, and so far there have been methods for painting the surface with a colored coating, methods for coloring the raw material in which a coloring material is blended into the resin, and then molding, and others. Plating methods are used industrially.
このうち塗装方式は大量の樹脂成形物に対して多種類の
着色を行う場合に好適であり、任、す：の色調、光沢が
得られることから特に広く用いられている。そして塗装
方式の中でも静電塗装方法は効率よく美麗な表面を得る
ことができるため利用価値が高い。しかし樹脂成形物は
電気不良導体（表面固有抵抗値が１０１２Ω・Ｃｍ以上
）であるため、この上に静電塗装を施すには、何らかの
方法で樹脂成形物表面上に導電性皮膜を形成する必要が
ある。Among these methods, the painting method is suitable for applying various types of coloring to a large amount of resin moldings, and is particularly widely used because it provides a wide range of color tones and gloss. Among the painting methods, the electrostatic painting method has high utility value because it can efficiently obtain a beautiful surface. However, since resin moldings are poor electrical conductors (surface resistivity of 1012Ω・Cm or more), in order to apply electrostatic coating on them, it is necessary to form a conductive film on the surface of the resin molding by some method. There is.
このような要求に対して、界面活性剤またはグリセリン
やエチレングリコール等を予め塗布する方法（特公昭３
０−３８２７号および特公昭３０−３８２８号公報）、
一般塗料用ビヒクル中に導電性の銀、銅、ニッケル、ア
ルミニウム等の金属粉末あるいは導電性カーボンブラッ
ク等の微粒子を分散させた導電性塗料を使用する方法（
解説塗料学、４６年１月１０日（株）理工出版社発行、
２７４〜２８２頁；塗料ハンドブック、２９年６月２５
日産業図書（株）発行、５９６〜６００頁）、ならびに
導電性カーボンブランク、二酸化チタンおよび熱可塑性
樹脂からなる淡色化された導電性下塗塗料組成物を電気
不良導体表面上に塗布することにより、上塗塗膜の色調
を損なうことなく、効率よく」二塗塗料を静上塗装する
方法（特開昭５８−１６７６５８号公報）などが提案さ
れている。In response to these demands, a method of pre-coating a surfactant, glycerin, ethylene glycol, etc.
0-3827 and Special Publication No. 30-3828),
A method of using a conductive paint in which conductive metal powders such as silver, copper, nickel, and aluminum or fine particles such as conductive carbon black are dispersed in a general paint vehicle (
Explanation of paint science, January 10, 1946, published by Riko Publishing Co., Ltd.
Pages 274-282; Paint Handbook, June 25, 2015
(Published by Nissangyo Tosho Co., Ltd., pp. 596-600) and by applying a lightened conductive undercoat composition consisting of a conductive carbon blank, titanium dioxide, and a thermoplastic resin onto the surface of the electrically defective conductor. A method has been proposed in which a two-coat paint is applied statically in an efficient manner without impairing the color tone of the top coat film (Japanese Patent Application Laid-open No. 167658/1983).
しかしながら界面活性剤またはグリセリンやエチレング
リコール等を予め塗布する方法は、上塗塗料も含めた総
合塗膜における耐湿性、耐候性等が著しく低下し、屋外
面樹脂部品へ適用できないという重大な欠陥を有してい
る。However, the method of pre-applying surfactants, glycerin, ethylene glycol, etc. has a serious drawback in that the moisture resistance, weather resistance, etc. of the overall coating film, including the top coat, is significantly reduced and cannot be applied to outdoor resin parts. are doing.
一方、導電性塗料を塗布する方法は、耐湿性、耐候性に
優れ１月内外を問わず長期間美麗な外観を与えるが、！
料中に多量の金属粉末や導電性カーボンブラックなどを
使用するため、銀等の金属粉末を用いた場合は高価であ
るとともに、金属粉末の比重が大きいために、導電性塗
料の貯蔵中に沈降するなどの貯蔵安定性１こ欠け、また
銅は長期間の貯蔵中に表面が酸化されて導電性が低下す
るなどの欠点を有している。On the other hand, the method of applying conductive paint has excellent moisture resistance and weather resistance and gives a beautiful appearance for a long time regardless of January or outside!
Since a large amount of metal powder or conductive carbon black is used in the paint, it is expensive if metal powder such as silver is used, and since the specific gravity of the metal powder is high, it may settle during storage of the conductive paint. Copper has drawbacks such as poor storage stability, and copper's surface oxidizes during long-term storage, resulting in reduced conductivity.
また導電性カーボンブラックを用いる場合は、導電性塗
膜が黒色〜黒灰色となることから、その上に静電塗装さ
れた上塗塗膜の色調が、導電性プライマーの色調の影響
を受けて黒味を帯び、上塗塗料本来の色調が得られない
という欠点を有しており、特に上塗塗膜の色調が淡色の
場合にその影響が大きく、上塗塗料の正常な色調が著し
く損なわれるという問題点がある。In addition, when using conductive carbon black, the conductive coating film is black to black-gray, so the color tone of the top coat electrostatically applied on top of it is affected by the color tone of the conductive primer and becomes black. It has the disadvantage that the color tone of the top coat cannot be obtained, and the problem is that this effect is particularly large when the color of the top coat is light, and the normal color tone of the top coat is significantly impaired. There is.
これらの欠点を解決する方法である導電性カーボンブラ
ックおよび二酸化チタンを含む導電性下塗塗料を使用す
る方法では、上塗塗膜の色調への影響度は軽減されるが
１着色剤として黒と白との組合わせだけであるため、表
面固有抵抗値を１０１０Ω・ｃｍ以下とするためには明
度の低い灰色しか得られず、上塗塗膜の色調に悪影響を
与えないほどには改善されない。The method of using a conductive undercoat paint containing conductive carbon black and titanium dioxide, which is a method to solve these drawbacks, reduces the influence on the color tone of the topcoat film, but uses black and white as one colorant. Therefore, in order to make the surface resistivity value 1010 Ω·cm or less, only a gray color with low brightness can be obtained, and the color tone of the top coat film is not improved to the extent that it does not have an adverse effect on the color tone.
本発明は上記問題点に着目してなされたもので、優れた
品質の塗料により効率よく塗装を行い、付着性、耐湿性
、耐候性、耐衝撃性、上塗外観性、上塗色調および上塗
静電塗装性に優れた塗膜を得ることができる樹脂成形物
の塗装方法を得ろことを目的とする。The present invention was made in view of the above-mentioned problems, and it is possible to efficiently paint with a paint of excellent quality, and improve adhesion, moisture resistance, weather resistance, impact resistance, topcoat appearance, topcoat color tone, and topcoat static electricity. The object of the present invention is to obtain a coating method for resin molded articles that can obtain a coating film with excellent paintability.
本発明は１表面固有抵抗値１０”Ω・ｃｍ以下でＰ／Ｂ
（顔料重量／樹脂固形分重量）値０．１〜２．５の導電
性プライマー（１）を樹脂成形物に塗装し、さらにこの
導電性プライマー（＋）と同系統の樹脂を含みかつ任意
の色に着色されたＰ／Ｂ値Ｏ１１〜２．５のプライマー
（ＩＩ）を塗装し、次いで上塗塗料を静電塗装すること
を特徴とする樹脂成形物の塗装方法である。The present invention has a P/B ratio of 1 surface resistivity of 10"Ω・cm or less.
A conductive primer (1) having a (pigment weight/resin solid content weight) value of 0.1 to 2.5 is coated on a resin molded article, and an optional primer containing a resin of the same type as this conductive primer (+) is applied. This is a coating method for a resin molded article, which is characterized by coating a colored primer (II) with a P/B value of O11 to 2.5, and then electrostatically coating a top coat.
本発明で用いる導電性プライマー（１）は表面固有抵抗
値が１０１０Ω・Ｃｍ以下でＰ／Ｂ値が０．１〜２．５
の導電性を有するプライマー塗料であり、導電性物質を
含むことにより導電性が付与される。導電性物質として
は導電性カーボンブラックを用いることができる。導電
性カーボンブラックとしては、例えばパルカンＸＣ−７
２（キャボット社製、商品名）、コンダクテックス９７
５（コロンビアカーボン社製、商品名）、ケッチェンブ
ラックＥＣ（ライオンアクゾ株式会社製、商品名）など
を挙げることができる６導電性プライマー（１）には、
上記導電性カーボンブラック以外の顔料２例えば二酸化
チタン、弁柄等の無機系着色顔料；タルク、炭酸カルシ
ウム、マイカ、硫酸バリウム、シリカ等の無機系体質顔
７斗；さらにシアニンブル−、キナクリドンレッドなど
の有機系着色顔料などを、表面固有抵抗値がｌＯ”０Ω
・ｃｍ以下でＰＩ３値が０．１〜２．５となる範囲内で
使用できる。さらに沈降防止剤、レベリング剤、消泡剤
、劣化防止剤等の一般に用いられる塗料用添加剤なども
必要に応じて使用できる。The conductive primer (1) used in the present invention has a surface resistivity value of 1010Ω・Cm or less and a P/B value of 0.1 to 2.5.
It is a primer paint that has electrical conductivity, and is imparted with electrical conductivity by containing a conductive substance. Conductive carbon black can be used as the conductive substance. As the conductive carbon black, for example, Palkan XC-7
2 (manufactured by Cabot, product name), Conductex 97
5 (manufactured by Columbia Carbon Co., Ltd., trade name), Ketjen Black EC (manufactured by Lion Akzo Co., Ltd., trade name), etc. 6. Conductive primer (1) includes:
Pigments other than the conductive carbon black 2 Inorganic coloring pigments such as titanium dioxide and Bengara; Inorganic pigments such as talc, calcium carbonate, mica, barium sulfate, and silica; Organic coloring pigments, etc., whose surface resistivity is 1O”0Ω
- Can be used within the range where the PI3 value is 0.1 to 2.5 at cm or less. Furthermore, commonly used paint additives such as anti-settling agents, leveling agents, antifoaming agents, and anti-deterioration agents can be used as required.
導′１ａ性ブライマー（１）のビヒクルとなる樹脂とし
ては特に限定されず、被塗装物である樹脂成形物素材に
良好な付着性を有する塗料用樹脂がいずれも使用できる
。このような樹脂としては１例えばアクリル樹脂、アル
キド樹脂、ポリエステル樹脂、ビニル樹脂、ポリオレフ
ィン樹脂、塩素化ポリオレフィン樹脂、ポリウレタン樹
脂、セルロース系樹脂、エポキシ樹脂などがあり、これ
らは単独であるいは混合物として使用可能である。また
これらの樹脂は架橋剤として、メラミン樹脂、尿素樹脂
、インシアネート化合物、ポリアミド樹脂などとともに
使用してもよい。The resin serving as the vehicle for the conductive brimer (1) is not particularly limited, and any coating resin that has good adhesion to the resin molded material to be coated can be used. Examples of such resins include acrylic resins, alkyd resins, polyester resins, vinyl resins, polyolefin resins, chlorinated polyolefin resins, polyurethane resins, cellulose resins, and epoxy resins, which can be used alone or in mixtures. It is. Further, these resins may be used as crosslinking agents together with melamine resins, urea resins, incyanate compounds, polyamide resins, and the like.
樹脂と顔料の配合割合はＰ／Ｂ値が０．１〜２．５とな
る範囲であり、好ましくは０．３〜１．５である。Ｐ／
Ｂ値が０．１未満では上塗塗料の静電塗装が可能となる
１０゛０Ω・０ｍ以下の表面固有抵抗値が得られず、２
．５ を越えるとプライマー中の樹脂分量が少なくなり
、樹脂成形物との付着性、耐衝撃性、耐湿性などが低下
する。The mixing ratio of the resin and the pigment is such that the P/B value is 0.1 to 2.5, preferably 0.3 to 1.5. P/
If the B value is less than 0.1, it will not be possible to obtain a surface resistivity value of 10゛0Ω・0m or less, which enables electrostatic painting of the top coat;
．． If it exceeds 5, the amount of resin in the primer will decrease, resulting in poor adhesion to resin moldings, impact resistance, moisture resistance, etc.
導電性プライマー（１）に使用する有機溶剤は。What is the organic solvent used for conductive primer (1)?
導電性プライマー用樹脂を均一に溶解するものであれば
よく、通常の塗料用有機溶剤、例えばトルエン、キシレ
ンなどの芳香族系有機溶剤、酢酸エチル、酢酸ブチル等
のエステル系有機溶剤；メチルエチルケトン、メチルイ
ソブチルケトン、シクロヘキサノン等のケトン系有機溶
剤；エチルアルコール、ｎ−ブチルアルコール等のアル
コール系有機溶剤などを挙げることができる。Any organic solvent that can uniformly dissolve the conductive primer resin may be used, such as ordinary organic solvents for paints, such as aromatic organic solvents such as toluene and xylene, ester organic solvents such as ethyl acetate and butyl acetate; methyl ethyl ketone and methyl. Examples include ketone organic solvents such as isobutyl ketone and cyclohexanone; alcohol organic solvents such as ethyl alcohol and n-butyl alcohol.
上記の導電性プライマー（１）は従来から行われている
塗料製造方法により製造することができる。The above-mentioned conductive primer (1) can be manufactured by a conventional paint manufacturing method.
本発明で用いるプライマー（■）は上記導電性プライマ
ー（１）と相容性を有する同系統の樹脂を含み、任意の
色に着色されたＰ／Ｂ値０．１〜２．５のプライマーで
ある。このプライマー（ＩＩ）に用いられる顔料として
は、主に二酸化チタン、弁柄、カーボンブラック等の無
機系着色顔料；シアニンブルー、キナクリドンまたはア
ンスラキノン系等の有機系着色メ■料、さらにタルク、
炭酸カルシウム、マイカ、硫酸バリウム、シリカ等の無
機系体質顔料などが用いられ、これらは単独でまたは混
合系で任意の色に着色することができる。The primer (■) used in the present invention is a primer containing the same type of resin that is compatible with the conductive primer (1), colored in any color, and having a P/B value of 0.1 to 2.5. be. The pigments used in this primer (II) are mainly inorganic coloring pigments such as titanium dioxide, Bengara, and carbon black; organic coloring pigments such as cyanine blue, quinacridone, or anthraquinone; and talc,
Inorganic extender pigments such as calcium carbonate, mica, barium sulfate, and silica are used, and these can be colored singly or in combination to any color.
プライマー（ＩＩ）の色は上塗塗２２）の色に影響を与
えないように、上塗塗料と同系統の色であることが好ま
しい。The color of the primer (II) is preferably the same color as the top coat 22) so as not to affect the color of the top coat 22).
プライマー（ＩＩ）に用いられる樹脂は導電プライマー
（１）に使用したものと同系統の樹脂であり、導電性プ
ライマー（１）と同様に、樹脂成形物に対して良好な付
着性を示すものが使用でき、特に同一の樹脂であること
が好ましい。プライマー（■）。The resin used for primer (II) is of the same type as that used for conductive primer (1), and like conductive primer (1), it has good adhesion to resin moldings. In particular, the same resin is preferred. Primer (■).
（Ｉｆ）の樹脂の種類が異なると付着性や耐湿性に劣る
場合があり、好ましくない。If the type of resin (If) is different, the adhesion and moisture resistance may be poor, which is not preferable.
樹脂と顔料の配合割合は、Ｐ／Ｂ値が０．１〜２．５と
なる範囲であり、好ましくはＰ／Ｂ値が０．３〜１．５
である。Ｐ／Ｂ値が０．１未満では上塗塗膜の色調に悪
影響を与え、２．５を越えると上塗塗膜に艶びけが発生
する。The blending ratio of the resin and the pigment is in a range such that the P/B value is 0.1 to 2.5, preferably 0.3 to 1.5.
It is. If the P/B value is less than 0.1, the color tone of the top coat will be adversely affected, and if it exceeds 2.5, the top coat will become dull.
プライマー（１１）で用いられる有機溶剤としては、前
述の導電性プライマー（１）と同様の有機溶剤が用いら
れる。またプライマー（■）は導電性プライマー（１）
と同様に、従来から行われている一般的な塗料製造方法
により製造される。As the organic solvent used in the primer (11), the same organic solvent as the above-mentioned conductive primer (1) is used. Also, the primer (■) is a conductive primer (1)
Similarly, it is manufactured using conventional paint manufacturing methods.
本発明において用いる上塗塗料は、樹脂成形物用上塗塗
料として一般に使用されるものがそのまま使用できる。As the top coating paint used in the present invention, those commonly used as top coating paints for resin molded articles can be used as they are.
このような上塗塗料としては、例えばポリウレタン樹脂
塗料、アクリル樹脂塗料、ラッカー塗料、ビニル樹脂塗
料、アルキド／メラミン樹脂塗料、アクリル／メラミン
樹脂塗料、エポキシ樹脂塗料などがあげられ、特に限定
されるものではない。Examples of such topcoat paints include polyurethane resin paints, acrylic resin paints, lacquer paints, vinyl resin paints, alkyd/melamine resin paints, acrylic/melamine resin paints, epoxy resin paints, etc., and are not particularly limited. do not have.
本発明の塗装に供される被塗装物としての樹脂成形物は
特に限定されず、例えばアクリロニ１−リル・ブタジェ
ン・スチレン樹脂、ポリプロピレン樹脂、ポリアミド樹
脂（ナイロン）、ポリブチレンテレフタレート樹脂、ア
クリル樹脂、ポリエステル樹脂、ポリウレタン樹脂等の
単独もしくは混合物、または変性樹脂の成形物があり、
さらにはこれらの樹脂を強化したものでもよい。The resin molded article used as the object to be coated for the coating of the present invention is not particularly limited, and includes, for example, acryloni-1-lyl butadiene styrene resin, polypropylene resin, polyamide resin (nylon), polybutylene terephthalate resin, acrylic resin, There are molded products made of polyester resin, polyurethane resin, etc. singly or as a mixture, or modified resin.
Furthermore, these resins may be reinforced.
本発明における塗装方法は、まず導電性プライマー（１
）をスプレー塗装、ディッピングなどの一般的塗装方法
により、乾燥塗膜で２〜３０μｍとなるように塗装し、
導電性皮膜を形成させる。次いでプライマー（ＩＩ）を
静電塗装またはスプレー塗装などの非静電塗装により、
乾燥塗膜で２〜３０μ世となるように塗装して、導電性
プライマー（１）の色を遮断し、上塗塗料の色調に影響
を与えない色調を得る。次いで上塗塗料を静電塗装によ
り、乾燥塗膜で２０〜４０μＩとなるように所望の色調
に塗装する。The coating method in the present invention begins with a conductive primer (1
) by a general coating method such as spray painting or dipping to a dry film thickness of 2 to 30 μm,
Forms a conductive film. Primer (II) is then applied by electrostatic coating or non-electrostatic coating such as spray coating.
The dry coating is applied to a thickness of 2 to 30 μm to block the color of the conductive primer (1) and obtain a color tone that does not affect the color tone of the top coat. Next, a top coat is applied to the desired color tone by electrostatic coating so that the dry coating film has a thickness of 20 to 40 .mu.I.
以上の塗装方法により、電気不良導体である樹脂成形物
上に形成された多層塗膜の塗膜性能１例えば耐湿性、付
着性など、ならびに上塗塗料本来の色調を損なうことな
く、効率よくあらゆる色調の上塗塗料を静電塗装するこ
とができる。By using the above coating method, the coating performance of the multilayer coating film formed on the resin molded product, which is a poor electrical conductor, can be efficiently applied to any color tone without impairing the film performance 1, such as moisture resistance, adhesion, etc., or the original color tone of the top coat. The top coat of paint can be applied electrostatically.
この場合、導電性プライマー（１）とプライマー（＋１
）が同−系統の樹脂を用いるため、導電性プライマー（
１）が本来焼付を必要とする塗料であっても、焼付する
ことなくプライマー（ＩＩ）を塗り重ね、多くても１回
の焼付工程で上塗塗料の色調を損なわない程度の下地色
塗膜を形成させることができる。さらに、樹脂成形物へ
の充分な付着性を得るに必要なプライマー膜厚を導電性
プライマー（１）およびプライマー（ＩＩ）の２層で形
成させればよく。In this case, conductive primer (1) and primer (+1
) uses the same type of resin, so conductive primer (
Even if 1) is a paint that originally requires baking, it is possible to coat the primer (II) over and over again without baking, and create a base color coating that does not impair the color tone of the top coat with at most one baking process. can be formed. Further, it is sufficient to form two layers of the conductive primer (1) and the primer (II) to a primer film thickness necessary to obtain sufficient adhesion to the resin molded article.
より安全に、安定した付着性を得ることができる。It is possible to obtain safer and more stable adhesion.
従って高価でかつ貯蔵安定性に問題のある金属粉末系導
電顔料を使用する必要がなく、安価でかつ塗膜性能およ
び塗料品質に優れる導電性カーボンブラックの使用が可
能であり、経済面、効率面、塗装品質面において非常に
優れている。Therefore, there is no need to use metal powder-based conductive pigments that are expensive and have storage stability problems, and it is possible to use conductive carbon black, which is inexpensive and has excellent coating film performance and paint quality, from an economic and efficiency standpoint. The coating quality is very good.
本発明によれば、樹脂成形物に特定の導電性プライマー
（Ｉ）を塗装し９次いで特定のプライマー（ｒｌ）を塗
装し、さらに上塗塗料を静電塗装するようにしたので、
貯蔵安定性に優れた塗料により効率よく塗装を行い、付
着性、耐湿性、耐候性、耐衝撃性、上塗外観性、上塗色
調および上塗静電塗装性などに優れた塗膜を得ることが
できる。According to the present invention, the resin molded article is coated with a specific conductive primer (I), then a specific primer (rl) is coated, and a top coat is electrostatically coated.
Painting can be performed efficiently using paints with excellent storage stability, resulting in coatings with excellent adhesion, moisture resistance, weather resistance, impact resistance, topcoat appearance, topcoat color tone, and topcoat electrostatic paintability. .
次に実施例および比較例をあげて、本発明をさらに詳細
に説明する。例中１部は重量部、％は重量％、比は重量
比を示す。Next, the present invention will be explained in more detail by giving Examples and Comparative Examples. In the examples, 1 part indicates part by weight, % indicates weight %, and ratio indicates weight ratio.
実施例および比較例は、樹脂成形物の１つであるポリプ
ロピレン松脂成形物に対して本発明を応用した場合につ
いて詳述するが、他の樹脂成形物についても、公知のプ
ライマー用樹脂を使用することにより、本発明を応用す
ることができることは３″うまでもない。The Examples and Comparative Examples will be detailed regarding the case where the present invention is applied to a polypropylene rosin molded product, which is one of the resin molded products, but a known primer resin may also be used for other resin molded products. Therefore, it goes without saying that the present invention can be applied to 3''.
′ｐ３造例
導電性プライマー（＋）およびプライマー（ＩＩ）の製
造
表１に示す各プライマーの配合組成物１００ｇをそれぞ
れディシルバーで充分に混合した後、ペイントシェーカ
ーで６０分混練し、導電性プライマー（１）およびプラ
イマー（ＩＩ）を製造した。得られた各プライマーの特
性値は表１に記載した。'p3 Production Example of Conductive Primer (+) and Primer (II) After thoroughly mixing 100 g of the composition of each primer shown in Table 1 in a disilver, kneading for 60 minutes in a paint shaker, and forming a conductive primer. (1) and primer (II) were produced. The characteristic values of each primer obtained are listed in Table 1.
表１に示す成分の詳細は次の・通りである。The details of the components shown in Table 1 are as follows.
塩素化ポリプロピレン樹脂ワニスＡ；バードレン１３Ｌ
１．ｎ （東洋化成（株）製、商品名、１５％溶液）塩
素化ポリプロピレン樹脂ワニスＢ；スーパークロン８０
３Ｍ （山場国策バルブ（株）製、商品名、３０％溶液
）
ポリウレタン樹脂ワニス；サンブレン１ＰＯＯ５（三洋
化成工業（株）製、商品名、 ３０％溶液）導電性カー
ボンブラック；パルカンＸＣ７２（キャボット社製、商
品名）
二酸化チタン； 、１Ｒ６０２（帝国化工（株）製、商
品名）弁柄；ベンガラ１２０ＥＤ （戸田工業（株）製
、商品名）シアニンブルー；シアニンブルー５３２（犬
口精化（株）製、商品名）
タルク；タルクＬＭＲ−１００（富士タルク（株）製、
商品名）
実施例１〜６、比較例１〜６
デス１〜ピースの塗装
試験用テストピースは次のように塗装した。Chlorinated polypropylene resin varnish A; Bardren 13L
1. n (manufactured by Toyo Kasei Co., Ltd., trade name, 15% solution) Chlorinated polypropylene resin varnish B; Super Chron 80
3M (manufactured by Yamaba Kokusaku Valve Co., Ltd., trade name, 30% solution) Polyurethane resin varnish; Sunburen 1POO5 (manufactured by Sanyo Chemical Industries, Ltd., trade name, 30% solution) Conductive carbon black; Palcan XC72 (manufactured by Cabot Corporation) , trade name) Titanium dioxide; 1R602 (manufactured by Teikoku Kako Co., Ltd., trade name) Bengara; Red Gara 120ED (manufactured by Toda Kogyo Co., Ltd., trade name) Cyanine Blue; Cyanine Blue 532 (manufactured by Inuguchi Seika Co., Ltd.) (manufactured by Fuji Talc Co., Ltd., product name) Talc; Talc LMR-100 (manufactured by Fuji Talc Co., Ltd.,
(Product Name) Examples 1 to 6, Comparative Examples 1 to 6 The test pieces for the painting test of Death 1 to Piece were painted as follows.
まず、ポリプロピレン樹脂成形物に１．１．１−トリク
ロルエタンの蒸気洗浄を６０秒間施して脱脂した。First, a polypropylene resin molded product was degreased by steam cleaning with 1.1.1-trichloroethane for 60 seconds.
そして表２に示す導電性プライマー（夏）をトルエンで
希釈して、１１秒／フォードカップ＃４（２０℃ンの粘
度に調整し、エアスプレー塗装を行い、室温にて２〜３
分間放置した。次いで表２に示すプライマー（■）をト
ルエンで１１秒／フォードカップ＃４（２０℃）の粘度
に調整して、エアスプレー塗装を行い、室温にて２〜３
分間放置した。次いで後述の上塗塗料を塗装し、１２０
℃で３０分間焼付を行いテストピースとした。ただし、
比較例５に使用したプライマー（ｎ）すなわちプライマ
ー１２の希釈用シンナーとしてはトルエン／メチルイソ
ブチルケトンを４０／６０で混合したものを用いた。得
られたテストピースの塗膜厚は表２に示す通りである。Then, the conductive primer (summer) shown in Table 2 was diluted with toluene, adjusted to a viscosity of 11 seconds/Ford Cup #4 (20℃), and air sprayed for 2 to 3 seconds at room temperature.
Leave it for a minute. Next, the primer (■) shown in Table 2 was adjusted with toluene to have a viscosity of 11 seconds/Ford Cup #4 (20°C), and air spray painting was performed for 2 to 3 seconds at room temperature.
Leave it for a minute. Next, apply the top coat paint described below and apply 120
A test piece was prepared by baking at ℃ for 30 minutes. however,
As the thinner for diluting Primer (n) used in Comparative Example 5, that is, Primer 12, a 40/60 mixture of toluene/methyl isobutyl ketone was used. The coating thickness of the obtained test piece is as shown in Table 2.
上記／Ｊｉ装に使用した上塗受料は次の通りである（プ
ラグロスは日本油脂（株）＋ｌＩ２、登録曲げ）。The top coat material used for the above /Ji coating is as follows (Plug loss: Nippon Oil & Fats Co., Ltd. +lI2, registered bending).
実施例１ プラグロスＮα３０００ホワイト〃 ２
プラグロスＮｎ３０００レツドｎ ３ プラグ
ロスＮ（１５０００ブルーメタリツクｎ ４ プ
ラグロスＮｎ３０００ホワイト実施例５ プラクロス
Ｎα３０００ホワイトｎ Ｆ３ プラグロスＮα
３０００レッド比較例１ プラグロスＮα３０００ホ
ワイトｎ ２ プラクロスＮα３０００ホワイト
ｎ ３ プラグロスＮｎ３０００ホワイトｎ
４ プラグロスＮｎ３０００ホワイトＩＴ ５
プラクロスＮα３０００ホワイト上記上塗塗料は次
のような条件で調製した。Example 1 Pragloss Nα3000 White 2
Plugloss Nn3000 Red n 3 Plugloss N (15000 Blue Metallic n 4 Plugloss Nn3000 White Example 5 Plugloss Nα3000 White n F3 Plugloss Nα
3000 Red Comparative Example 1 Plugloss Nα3000 White n 2 Plugloss Nα3000 White n 3 Plugloss Nn3000 White n
4 Plugloss Nn3000 White IT 5
Placross Nα3000 White The above top coat was prepared under the following conditions.
プラグロスＮｏ３０００系： 酢酸ブチル／キジロール
＝５０／ ５０のシンナーで２０秒／フォードカップ＃
４（２０°Ｃ）に希釈
プラグロスＮａ５０００系： 酢酸ブチル／キジロール
＝５０１５０のシンナーで１４秒／フォードカップ＃４
（２０℃）しこ希釈
上記のデス１〜ピースを次の試験方法および評価方法に
より試験し、評価した。Pragloss No. 3000 series: Butyl acetate/Kijirol = 50/20 seconds with 50 thinner/Ford Cup #
4 (20°C) diluted Plugloss Na5000 system: 14 seconds with butyl acetate/kijirol=50150 thinner/Ford Cup #4
(20°C) Strict dilution The above-mentioned pieces were tested and evaluated according to the following test method and evaluation method.
（１）付着性
鋭利なカッターにより素地まで到達する錫をタテ、ヨコ
各１１本を直角につけ、１００個の桝目を作る。次いで
セロハンテープを貼付け、瞬間的に４５°の角度で引き
剥し、塗膜の残っている桝目の数を数え、以下のように
評価した。同様゛の試験を１枚のテストピースに５カ所
実施した。(1) Adhesive Use a sharp cutter to attach 11 pieces of tin that reach the substrate at right angles, 11 vertically and horizontally, to make 100 squares. Next, a cellophane tape was applied and instantly peeled off at an angle of 45°, the number of squares where the coating film remained was counted, and the evaluation was made as follows. A similar test was conducted at five locations on one test piece.
（優）０ ５カ所ノン苓膜のへ残っている桝目が１００
個で１ あった。(Excellent) 0 100 squares remaining in 5 non-reliable areas
There was one in total.
（劣）× ３力所以上で塗膜の残っている桝目が１００
個未満であった。(Poor) × 100 squares with paint film remaining at 3 or more places
It was less than 100%.
（２）耐温性
５０℃、９８％Ｒ１！以上の雰囲気で２４０時間放置後
。(2) Temperature resistance 50℃, 98% R1! After being left in the above atmosphere for 240 hours.
（１）の付着性と同様の試験を行い、同様の評価を行っ
た。The same test as in (1) for adhesion was conducted and the same evaluation was performed.
（３）上塗外観性
上塗塗膜の平滑性、つやの状態を肉眼で観察し、以下の
ように評価した。(3) Appearance of top coat The smoothness and gloss of the top coat were observed with the naked eye and evaluated as follows.
（優）ｏ６０°鏡面光沢度８０以上
（劣）×６０°鏡面光沢度８０未満
（４）上塗静電塗装性
テストピース表面にアース端子を取付け、端子も含めて
表２に示す組合わせにより、導電性プライマー（１）を
エアスプレーし、室温にて２〜３分間放ｈ′Ｌ後プライ
マー（ｒｌ）をエアスプレーし、さらに室温で２〜３分
間放置後、上塗塗料を次の条件で静電・全装し、」二塗
塗料の塗着状態を肉眼で観察し、１；記の１シ・「価を
行った。(Excellent) o 60° specular gloss of 80 or more (poor) x 60° specular gloss of less than 80 (4) Topcoat electrostatic paintability Attach a ground terminal to the surface of the test piece and use the combinations shown in Table 2, including the terminal. Air spray the conductive primer (1), leave it for 2 to 3 minutes at room temperature, air spray the primer (rl), leave it for 2 to 3 minutes at room temperature, and then apply the top coat under the following conditions. The condition of the two coats of paint was visually observed, and the test was carried out as described in 1.
静電塗装条件
静′屯塗装機 ミニベルＧ（ランズバーグ社製、商品
名）回転数 １５００Ｏｒｐｍ
吐出’Ｂｋ ２００ｃｃ／ｍｉｎ
ガン距蒲 ４０ｃｔ。Electrostatic coating conditions Electrostatic coating machine Minibell G (manufactured by Landsburg, trade name) Rotation speed 1500Orpm Discharge 'Bk 200cc/min Gun distance 40ct.
評価方法
（優）○テストピース全面に塗着し、平滑で均一な塗面
が得られる。Evaluation method (Excellent) - Painted over the entire surface of the test piece, resulting in a smooth and uniform painted surface.
（劣）Ｘ テストピースに塗料が塗着せず、均一な塗面
が得られない。(Poor) X The paint does not adhere to the test piece and a uniform painted surface cannot be obtained.
（５）上塗色調
実施例１〜６および比較例１〜６で使用した」―塗塗料
と同一の上塗塗料を白ｙ！９隠蔽力試験紙に塗装し、白
地６１５分と黒地部分で色の差がなくなったときの上塗
塗膜の色と、実施例１〜６および比較例１〜６で得られ
たテストピースの色とを肉眼で比較し、以下の評価を行
った。(5) Topcoat color tone The same topcoat paint as that used in Examples 1 to 6 and Comparative Examples 1 to 6 was used in White Y! 9 The color of the topcoat film when applied to a hiding power test paper and there is no difference in color between the white background and the black background, and the color of the test pieces obtained in Examples 1 to 6 and Comparative Examples 1 to 6. The results were compared with the naked eye and the following evaluations were made.
（優）Ｏはとんど差異が判別できない。(Excellent) O can hardly tell the difference.
（劣）×差異がかなりはっきり判別できる。(Poor) × Differences can be distinguished quite clearly.
上記試験結果を表２に示す。The above test results are shown in Table 2.
表２の試験結果からも明らかなように、実施例１〜６の
本発明の塗装方法を用いる二とにより、付着性、耐湿性
等の塗膜性能に悪影響を及ぼすことなく、上塗塗料を効
率よく静電塗装することができ、かつどのような色の上
塗塗料を用いても上塗塗料本来の色調を容易に得ること
ができるとともに、上塗外観性も良好である。すなわち
実施例１〜６は導電性プライマー（１）上に心電性プラ
イマー（１）と同系統の樹脂を使用し、上塗塗料と同系
統の色を着色したプライマー（■）を塗装する方法で、
実施例４は導電性プライマー（ｒ）のＰ／Ｂ値が２．０
の場合であり、実施例６は同一樹脂で製造した導電性プ
ライマー（１）およびプライマー（ｎ）を使用した場合
であるが、いずれも場合も付着性、耐湿性、上塗外観性
、上塗色調および」二塗静電塗装性に優れている。As is clear from the test results in Table 2, by using the coating method of the present invention in Examples 1 to 6, the top coat can be efficiently coated without adversely affecting coating performance such as adhesion and moisture resistance. It can be electrostatically applied well, and the original color tone of the top coat can be easily obtained no matter what color the top coat is used, and the appearance of the top coat is also good. In other words, Examples 1 to 6 are a method in which a resin of the same type as the electrocardiographic primer (1) is used on the conductive primer (1), and a primer (■) colored in the same color as the top coat is applied. ,
In Example 4, the P/B value of the conductive primer (r) was 2.0.
In Example 6, conductive primer (1) and primer (n) made of the same resin were used, but in both cases, the adhesion, moisture resistance, topcoat appearance, topcoat color tone, and ” Excellent two-coat electrostatic coating properties.
これに対して、比較例１は導′、′！ｉ性プライマー（
１）のＰ／Ｂ値が０．１未満の場合であり１表面固有抵
抗値が１０”Ω・ａｍ以下とならず、上塗静電塗装性に
劣る。比較例２は導電性プライマー（ｒ）のＰ／ｒ３値
が２．５を越えた場合であり、耐湿性および上塗外観性
に劣る。比較例３はプライマー（ＩＩ）のＰ／Ｂ値が２
．５を越えた場合であり、比較例２と同様に耐湿性およ
び上塗外観性に劣る。比較例４は導電性プライマー（１
）の上に直接上塗皇料を塗装した場合であり、導電性プ
ライマー（１）の色の影響で上塗塗料本来の色調が得ら
れず、上塗色調に劣るとともに、導電性プライマー（１
）の膜厚だけでは充分な付着性が得られず、また耐湿性
も劣る。比較例５は導電性プライマー（１）とプライマ
ー（ＩＩ）の樹脂系が全く異なる場合であり、上塗外観
性、上塗色調および上塗静電塗装性は優れるものの。On the other hand, in Comparative Example 1, conduction′,′! i-primer (
In the case where the P/B value of 1) is less than 0.1, the 1 surface specific resistance value does not become 10"Ω・am or less, and the electrostatic overcoatability is poor. Comparative example 2 is a conductive primer (r). When the P/r3 value of primer (II) exceeds 2.5, the moisture resistance and topcoat appearance are poor.
．． 5, and as with Comparative Example 2, the moisture resistance and topcoat appearance are poor. Comparative Example 4 is a conductive primer (1
), the color tone of the top coat cannot be obtained due to the influence of the color of the conductive primer (1), and the color tone is inferior to that of the top coat.
) alone does not provide sufficient adhesion and also has poor moisture resistance. Comparative Example 5 is a case where the resin systems of the conductive primer (1) and the primer (II) are completely different, and the topcoat appearance, topcoat color tone, and topcoat electrostatic coating properties are excellent.
Claims (3)
Ｂ（顔料重量／樹脂固形分重量）値０．１〜２．５の導
電性プライマー（ I ）を樹脂成形物に塗装し、さらに
この導電性プライマー（ I ）と同系統の樹脂を含みか
つ任意の色に着色されたＰ／Ｂ値０．１〜２．５のプラ
イマー（II）を塗装し、次いで上塗塗料を静電塗装する
ことを特徴とする樹脂成形物の塗装方法。(1) Surface specific resistance value 10^1^0Ω・cm or less P/
A conductive primer (I) having a B (pigment weight/resin solid content weight) value of 0.1 to 2.5 is applied to a resin molded article, and an optional primer containing a resin of the same type as this conductive primer (I) is applied. 1. A method for coating a resin molded article, which comprises coating a primer (II) colored in a color with a P/B value of 0.1 to 2.5, and then electrostatically coating a top coat.
ある特許請求の範囲第１項記載の樹脂成形物の塗装方法
。(2) The method for coating a resin molded article according to claim 1, wherein the color of the primer (II) is the same color as the top coat paint.
塗装である特許請求の範囲第１項または第２項記載の樹
脂成形物の塗装方法。(3) The method for coating a resin molded article according to claim 1 or 2, wherein the primer (II) is applied by electrostatic coating or non-electrostatic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13317486A JPS62289268A (en) | 1986-06-09 | 1986-06-09 | Coating method for molded resin form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13317486A JPS62289268A (en) | 1986-06-09 | 1986-06-09 | Coating method for molded resin form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62289268A true JPS62289268A (en) | 1987-12-16 |
Family
ID=15098403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13317486A Pending JPS62289268A (en) | 1986-06-09 | 1986-06-09 | Coating method for molded resin form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62289268A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243274A (en) * | 1988-08-03 | 1990-02-13 | Polyplastics Co | Electrostatic coating of crystalline thermoplastic resin composition and coated plastic molding |
| JP2003201439A (en) * | 2002-01-09 | 2003-07-18 | Kansai Paint Co Ltd | Electrically conductive water-based coating for polyolefin |
| JP2010527406A (en) * | 2007-05-18 | 2010-08-12 | ビーエーエスエフ コーティングス アクチェンゲゼルシャフト | Aqueous pigmented coatings, process for their production and their use for the production of multilayer coatings of paints |
-
1986
- 1986-06-09 JP JP13317486A patent/JPS62289268A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0243274A (en) * | 1988-08-03 | 1990-02-13 | Polyplastics Co | Electrostatic coating of crystalline thermoplastic resin composition and coated plastic molding |
| JP2003201439A (en) * | 2002-01-09 | 2003-07-18 | Kansai Paint Co Ltd | Electrically conductive water-based coating for polyolefin |
| JP2010527406A (en) * | 2007-05-18 | 2010-08-12 | ビーエーエスエフ コーティングス アクチェンゲゼルシャフト | Aqueous pigmented coatings, process for their production and their use for the production of multilayer coatings of paints |
| JP2015038215A (en) * | 2007-05-18 | 2015-02-26 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツングＢＡＳＦ Ｃｏａｔｉｎｇｓ ＧｍｂＨ | Aqueous pigmented coating agent, manufacturing method thereof, and use thereof for manufacturing multilayer coating of paint |
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