JPS6242770A - Masking method for painting - Google Patents
Masking method for paintingInfo
- Publication number
- JPS6242770A JPS6242770A JP17858885A JP17858885A JPS6242770A JP S6242770 A JPS6242770 A JP S6242770A JP 17858885 A JP17858885 A JP 17858885A JP 17858885 A JP17858885 A JP 17858885A JP S6242770 A JPS6242770 A JP S6242770A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- painting
- emulsion
- strippable paint
- strippable
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はたとえば自動車部品等のプラスチック成形品を
色分は塗装するに際して行う、エマルジョン系ストリッ
パブルペイントを用いた塗装マスキング方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a coating masking method using an emulsion-based strippable paint, which is carried out when color-coating plastic molded articles such as automobile parts.
従来の技術
ストリッパブルペイントは物品の表面を一時的に保護す
るために用いる可剥離性被覆塗料である。BACKGROUND OF THE INVENTION Strippable paints are removable coatings used to temporarily protect the surface of articles.
特に自動車部品等のプラスチック成形品、たとえばポリ
プロピレンやウレタン製バンパー等を色分は塗装する際
、該成形品に先ずストリッパブルペイントを塗装しくマ
スキング）、次いで必要箇所を剥離してここに着色塗料
を塗装し、Ｍ後に未２１ｇＩ部分を剥離することによっ
て色分は塗装が行われる。In particular, when painting plastic molded products such as automobile parts, such as bumpers made of polypropylene or urethane, first apply strippable paint to the molded product (masking), then peel off the necessary areas and apply colored paint there. The color is painted by peeling off the un21gI part after painting.
この場合、従来のストリッパブルペイントには塩ビオル
ガノゾルが一般的であったが、塩ビオルガノゾルは
（ａ）溶剤系であり、公害、中毒、引火の心配があるこ
と、
（ｂ）塩ビゾルに含まれる多量の可塑剤及び溶剤により
、下地が塗装された鋼板（成型品）では変色・シミが出
るおそれがあること、
（Ｃ）未塗装の鋼板やステンレス鋼板などの基材では、
塩ビからの分解発生する塩酸ガスにより、錆を発生し、
フィルムが剥れなくなること、などの欠点があった。In this case, PVC organosol was commonly used in conventional strippable paints, but PVC organosol is (a) solvent-based and has concerns about pollution, poisoning, and ignition; (b) PVC organosol Due to the large amount of plasticizers and solvents contained, there is a risk of discoloration and staining on coated steel plates (molded products). (C) On base materials such as unpainted steel plates and stainless steel plates,
Rust occurs due to hydrochloric acid gas generated by decomposition of PVC,
There were drawbacks such as the film not being able to be peeled off.
従って、これら金属板や塗装済の金属板や成型品のマス
キングにあっては、これら欠点をカバーした水性の剥離
性塗料（ストリッパブルペイント）が望まれている。Therefore, for masking these metal plates, painted metal plates, and molded products, a water-based strippable paint that covers these defects is desired.
又、一般にポリオレフィン類は塗料密着性が悪いので、
これを改善するためポリオレフィンを予め塩素化する方
法（特開昭５８−１２７８３７号）、ポリオレフィンを
これと溶解度パラメーターの近い有機溶剤（トリクレン
等）で前処理し、さらにプラズマ処理する方法（特開昭
５７−１５８７０）などが提案されている。Also, polyolefins generally have poor paint adhesion, so
To improve this, there is a method of pre-chlorinating the polyolefin (Japanese Patent Application Laid-Open No. 127837/1983), and a method of pre-treating the polyolefin with an organic solvent (such as trichlene) having a similar solubility parameter to that of the polyolefin, and then subjecting it to plasma treatment (Japanese Patent Application Laid-Open No. 1983-127837). 57-15870) etc. have been proposed.
発明が解決しようとする問題点
本発明の塗装マスキングにあたっては、成形品との密着
性が強すぎては却って問題である。しかしながら、成形
品製造時のシリコンオイル等のイ・１着や、塗装工場に
おける成形品への機械油等による汚れは本塗装の密着不
良を招くので色分は塗装時の本塗装の密着を良くするた
めに予めトリクレン処理やプラズマ処理をすることは有
効である。Problems to be Solved by the Invention In the coating masking of the present invention, it is rather a problem if the adhesion to the molded product is too strong. However, contamination caused by silicone oil, etc. during molded product manufacturing, and machine oil, etc. on molded products in the painting factory will cause poor adhesion of the main coating, so the color separation should be carefully selected to improve the adhesion of the main coating during painting. To this end, it is effective to perform triclean treatment or plasma treatment in advance.
しかしながらトリクレンの蒸気洗浄設備やプラズマ処理
は、トリクレンの有機毒性や大型の設備投資など、やっ
かいな問題を抱えている。However, the steam cleaning equipment and plasma treatment using trichlene have troublesome problems, such as the organic toxicity of trichlene and the large capital investment.
本発明は公害や大型設備の要らない簡便な手法により本
塗装における塗料密着性をさらに向上させる方法を提供
することを目的とする。An object of the present invention is to provide a method for further improving paint adhesion in main coating by a simple method that does not require pollution or large-scale equipment.
問題点を解決するための手段
本発明は、成型品の部分塗装をする際に、成型品の表面
洗浄工程を省き、プラスチック成形品の表面にストリッ
パブルペイントを塗装しマスキングを行うに当り、脱脂
溶剤を含むエマルジョン系のストリッパブルペイントを
塗装することを特徴とする塗装マスキング方法である。Means for Solving the Problems The present invention eliminates the step of cleaning the surface of the molded product when partially painting the molded product, and removes the degreasing process when applying strippable paint to the surface of the plastic molded product for masking. This is a paint masking method characterized by applying an emulsion-based strippable paint containing a solvent.
すなわち、本発明は、マスキング後の本塗装において、
塗料密着性を向上させるためには、ストリッパブルペイ
ント中に脱脂溶剤を含有させることが有効であることに
着目したものである。That is, in the present invention, in the main painting after masking,
This paper focuses on the fact that it is effective to include a degreasing solvent in a strippable paint in order to improve paint adhesion.
本発明のプラスチック成形品とは、色分は塗装の対象と
なるもので、自動車バンパーやボディあるいは二輪車の
ガソリンタンクや風防が代表的であり、プラスチックと
してはポリプロピレン、ポリエチレン、ＡＢＳ、ＦＲＰ
、ポリカーボネート、ポリブテンターポリマー等が挙げ
られる。The plastic molded products of the present invention are objects that can be painted in different colors, and typical examples include automobile bumpers and bodies, and gasoline tanks and windshields of motorcycles. Plastics include polypropylene, polyethylene, ABS, FRP, etc.
, polycarbonate, polybutene terpolymer, and the like.
ストリッパブルペイントに用いるエマルジョンとしては
、アクリルエマルジョンが好ましい、該アクリルエマル
ジョンとしては、共重合全モノマーとして、アクリロニ
トリル２５〜４０重量％、ブチルアクリレート及び／又
は２−エチルヘキシルアクリレート８５〜４０重量％、
残部がアクリル酸エステル、メタアクリル酸エステル、
アクリルアミド、メタクリルアミド、アクリル酸、メタ
アクリル酸からなる群から選ばれた１種以上のモノマー
からなり、これらを公知の方法（たとえば特願昭５８−
２４８２２８号）に従って、エマルジョン重合して製造
する。The emulsion used for the strippable paint is preferably an acrylic emulsion.The acrylic emulsion includes, as total copolymerized monomers, 25 to 40% by weight of acrylonitrile, 85 to 40% by weight of butyl acrylate and/or 2-ethylhexyl acrylate,
The remainder is acrylic ester, methacrylic ester,
It consists of one or more monomers selected from the group consisting of acrylamide, methacrylamide, acrylic acid, and methacrylic acid, and is prepared by a known method (for example, Japanese Patent Application No.
No. 248,228), it is produced by emulsion polymerization.
エマルジョン中に混合する脱脂溶剤としては、トＩＪ
’） Ｌ／ ７、パークレン、ジクロルエタン等の塩素
系溶剤、ブタノール、エタノール、その他、トルエン、
キシレン、ガソリン、軽油などがよい。The degreasing solvent to be mixed into the emulsion is
') L/7, chlorinated solvents such as perchloroethane, dichloroethane, butanol, ethanol, others, toluene,
Xylene, gasoline, diesel oil, etc. are recommended.
脱脂溶剤の添加量はエマルジョン塗料に対し２０〜 ｔ
ｏｏｉｕ％である。これ以上添加するとエマルジョン塗
料としての樹脂分が低下しすぎて、ストリッパブルペイ
ントとしての塗膜が弱く実用的でないし、又経済性上不
利である。The amount of degreasing solvent added is 20 to 20 tons per emulsion paint.
It is ooiu%. If more than this is added, the resin content as an emulsion paint will be too low, and the coating film as a strippable paint will be too weak to be practical, and it will also be economically disadvantageous.
本発明にある様に、ストリッパブルペイントに脱脂溶剤
を含んだ系では、成型品についている汚れ、油等を剥離
したストリッパブルペイントフィルム中に吸収される為
、本塗装時に、塗料中に不純物を含まず、美麗に仕上る
。As in the present invention, when a strippable paint contains a degreasing solvent, dirt, oil, etc. on the molded product are absorbed into the stripped strippable paint film, so impurities are removed from the paint during main painting. Contains no ingredients and has a beautiful finish.
しかしながら、本塗装中の塗料中に脱脂溶剤を入れた場
合は、成型品表面の油等を塗料と置換し、密着性向上は
計られるが、吸収した油は塗膜中に残る為、塗膜の物性
上好ましくなく、塗膜の硬化不良や艶ひけの原因となる
。However, if a degreasing solvent is added to the paint during main painting, the oil on the surface of the molded product will be replaced with the paint and the adhesion will be improved, but the absorbed oil will remain in the paint film. It is unfavorable in terms of its physical properties and causes poor curing and fading of the coating film.
以上述べた如く、本発明により、従来材なわれてきた公
害上好ましくないトリクレンの蒸気洗浄設備が不要とな
り、かつ容易に脱脂して次の塗装工程に移ることが可能
となった。As described above, the present invention eliminates the need for the conventional steam cleaning equipment using trichlene, which is undesirable in terms of pollution, and makes it possible to easily degrease the material and move on to the next painting process.
以下実施例によって具体的に説明する。This will be explained in detail below using examples.
実施例１
常法に従がい、アクリルエマルジョンヲ重合した。（ア
クリロニトリル３０部、アクリル醜ブチル５５部、アク
リル酸３部、アクリルアミド２部、ベンゼンスルホン酸
ソーダ０．５部、過硫酸カリウム０．５部、出来上り固
型分５０％）。Example 1 An acrylic emulsion was polymerized according to a conventional method. (30 parts of acrylonitrile, 55 parts of acrylic butyl, 3 parts of acrylic acid, 2 parts of acrylamide, 0.5 part of sodium benzenesulfonate, 0.5 part of potassium persulfate, finished solid content 50%).
これに濡れ剤としてサーフィノール１０４ （エアプ
ロダクト社製）をアクリルエマルジョン１００部に対し
２部加え、更に脱脂溶剤としてトリクレン３０部を攪拌
しながら徐々に加えストリッパブルペイントを得た。To this, 2 parts of Surfynol 104 (manufactured by Air Products Co., Ltd.) as a wetting agent was added to 100 parts of the acrylic emulsion, and 30 parts of Triclene as a degreasing solvent was gradually added with stirring to obtain a strippable paint.
ポリプロピレンのテストピース（５Ｘ２０ｃ■）板の表
面に、機械油を紙に浸み込ませたもので薄く塗った。こ
の上に上記樹脂をスプレーで乾燥後の膜厚が５０延にな
る様に塗布し、８０℃で１０分間乾燥した。このフィル
ムを剥がした後にブライマー（ｌｆｌ素化ＰＰ含有のブ
ライマー塗料、ビーケー塗料株）を塗布し、８０℃で３
０分乾燥した後トップコート（ウレタンアクリル系塗料
、ビーケー塗料■）を塗布し、８０℃で４５分乾燥した
。A thin layer of paper impregnated with machine oil was applied to the surface of a polypropylene test piece (5 x 20 cm) board. On top of this, the above resin was applied by spraying so that the film thickness after drying would be 50 mm, and dried at 80° C. for 10 minutes. After peeling off this film, apply a brimer (brimer paint containing lfl-primed PP, manufactured by BK Paint Co., Ltd.) at 80℃ for 30 minutes.
After drying for 0 minutes, a top coat (urethane acrylic paint, BK Paint ■) was applied and dried at 80° C. for 45 minutes.
乾燥した塗膜に１ｍ−間隔で縦横に１１木ずつナイフで
すしを入れ、（即ち１００コの１ｍ層角のます目が出来
る）その上にセロファンテープを貼りつけ十分に指で押
さえた後、セロファンテープの一端をもって剥離し、残
った目の数を数えた（ゴバン目テスト）。Put 11 squares vertically and horizontally on the dried paint film using a knife, and then paste cellophane tape on top of it and press it firmly with your fingers. One end of the cellophane tape was peeled off and the number of remaining stitches was counted (Goban stitch test).
比較例１
実施例１に於けるトリクレンの添加工程のみを除き、他
は実施例１と全く同様にしてテストした。Comparative Example 1 A test was carried out in exactly the same manner as in Example 1, except for the addition step of Trichlene.
比較例？
ストリッパブルペイントを塗布せず、油を塗布したポリ
プロピレンのテストパネルに直にブライマー処理及びト
ップコートを塗布し、実施例１と同様のゴバン目テスト
を行なった。Comparative example? A test panel of oil-coated polypropylene without strippable paint was directly coated with a primer treatment and a top coat, and the same burlap test as in Example 1 was conducted.
結果を第１表に合わせて配した。The results are arranged according to Table 1.
第１表
発明の効果
以上の結果より、ストリッパブルペイントに脱脂溶剤が
含まれていない場合は、密着不良が未だ生じており、本
発明に於ける脱脂溶剤の添加効果が良く出ている。Table 1 Effects of the Invention From the above results, when the strippable paint does not contain a degreasing solvent, poor adhesion still occurs, and the effect of adding the degreasing solvent in the present invention is clearly visible.
Claims (1)
トを塗装しマスキングを行うに当り、脱脂溶剤を含むエ
マルジョン系のストリッパブルペイントを塗装すること
を特徴とする塗装マスキング方法。 ２、プラスチック成形品がポリプロピレンであり、有機
溶剤がトリクレンである特許請求の範囲第１項記載の塗
装マスキング方法。 ３、エマルジョン系のストリッパブルペイントがアクリ
ロニトリル２５〜４０重量％、ブチルアクリレート及び
／又は２−エチルヘキシルアクリレート８５〜４０重量
％、残部アクリル酸エステル、メタクリル酸エステル、
アクリルアミド、メタクリルアミド、アクリル酸、メタ
アクリル酸からなる群より選ばれた１種以上から合成さ
れたアクリル系ポリマーのエマルジョン系のストリッパ
ブルペイントである特許請求の範囲第１項又は２項記載
の塗装マスキング方法。[Scope of Claims] 1. A paint masking method characterized by applying an emulsion-based strippable paint containing a degreasing solvent when masking the surface of a plastic molded product by painting it with a strippable paint. 2. The coating masking method according to claim 1, wherein the plastic molded product is polypropylene and the organic solvent is trichlene. 3. The emulsion-based strippable paint contains 25 to 40% by weight of acrylonitrile, 85 to 40% by weight of butyl acrylate and/or 2-ethylhexyl acrylate, the balance being acrylic ester, methacrylic ester,
The coating according to claim 1 or 2, which is an emulsion-based strippable paint of an acrylic polymer synthesized from one or more selected from the group consisting of acrylamide, methacrylamide, acrylic acid, and methacrylic acid. Masking method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17858885A JPS6242770A (en) | 1985-08-15 | 1985-08-15 | Masking method for painting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17858885A JPS6242770A (en) | 1985-08-15 | 1985-08-15 | Masking method for painting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6242770A true JPS6242770A (en) | 1987-02-24 |
Family
ID=16051094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17858885A Pending JPS6242770A (en) | 1985-08-15 | 1985-08-15 | Masking method for painting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624784A (en) * | 2018-06-22 | 2019-12-31 | 麦格纳外饰有限公司 | Method for producing a plastic part, and plastic part and processing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5935671A (en) * | 1982-08-19 | 1984-02-27 | Toshiba Corp | Heat treatment device |
-
1985
- 1985-08-15 JP JP17858885A patent/JPS6242770A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5935671A (en) * | 1982-08-19 | 1984-02-27 | Toshiba Corp | Heat treatment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624784A (en) * | 2018-06-22 | 2019-12-31 | 麦格纳外饰有限公司 | Method for producing a plastic part, and plastic part and processing device |
| EP3587084A1 (en) * | 2018-06-22 | 2020-01-01 | Magna Exteriors GmbH | Method for producing a plastic component, plastic component, and machining system |
| DE102018210215B4 (en) | 2018-06-22 | 2022-02-03 | Magna Exteriors Gmbh | Process for producing a plastic component, and plastic component and processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5110392A (en) | Primer composition containing an organometallic compound for binding substrates with a cyanocrylate adhesive | |
| US4421817A (en) | Method for making printable self-adhesive tapes and the self-adhesive tapes obtaned thereby | |
| US3196039A (en) | Process and solution for the aftertreatment of phosphate coatings | |
| WO1987002689A1 (en) | Strippable coating film, and coating process using it | |
| DE3151116A1 (en) | HOT SEALABLE POLYOLEFIN FILM AND METHOD FOR THEIR PRODUCTION | |
| US2879177A (en) | Process of surface treating polyethylene structures and resultant article | |
| US4144363A (en) | Process for coating polyolefin films | |
| US5334655A (en) | Method for reducing microfoam in a spray-applied waterborne composition | |
| KR100489668B1 (en) | A method for producing temporary protective coating | |
| JPS6242770A (en) | Masking method for painting | |
| US2958611A (en) | Priming of zinc surfaces | |
| US3765924A (en) | Finishing process and composition | |
| CA1152670A (en) | Aqueous coating compositions for wood surfaces | |
| US2617788A (en) | Flexible coating composition from a copolymer of an acrylonitrile, alpha methyl styrene and ethyl acrylate | |
| DE2038980A1 (en) | Process for treating the surface of organic polymeric materials | |
| US2782132A (en) | Methyl methacrylate lacquer coated metal article and process therefor | |
| JPS62213879A (en) | Improved partial painting method | |
| US2778745A (en) | Process of applying adherent amide containing coatings to a wood base and article produced thereby | |
| JPH0694542B2 (en) | Coating composition capable of removing alkali | |
| JPH0354696B2 (en) | ||
| EP0891399A1 (en) | Neutral removers of paint from essentially metallic surfaces | |
| DE1520590C (en) | Process for the production of a latex from polymers which contain amino ester residues by reacting polymers containing carboxylic acid groups with aziridines | |
| CA1169717A (en) | Method for making printable autoadhesive tapes and the autoadhesive tapes obtained thereby | |
| JPS61245870A (en) | Painting masking method for beautifully developing parting part | |
| GB2037780A (en) | Compositions and Process for Coating Films to be Used in the Packaging and Wrapping Field |