JPS59130571A

JPS59130571A - Partial painting method of resin product

Info

Publication number: JPS59130571A
Application number: JP23265483A
Authority: JP
Inventors: Akira Haruhara; 昭春原
Original assignee: Nissan Shatai Co Ltd
Current assignee: Nissan Shatai Co Ltd
Priority date: 1983-12-12
Filing date: 1983-12-12
Publication date: 1984-07-27
Also published as: JPS6344024B2

Abstract

PURPOSE:To form easily and surely a parting line on a product having an intricate shape by interposing a strippable paint which permits cut stripping on the surface of a resin product. CONSTITUTION:A release agent 12 such as silicon is coated on a mold on the surface wherein a painting surface of a resin product (a) is formed, and a strippable paint 13 formed by compounding toluene, methyl ethyl ketone, stabilizer, etc. with vinyl acetate or vinyl chloride is coated thereon over the entire surface and is dried. A top mold coated with the similar stripping agent on the surface is superposed on said mold, and a resin is injected into the mold, whereby the resin is molded. After the strippable paint 13 on the resulting product (a) is dried, the paint is cut and stripped by a suitable means, and a painting surface part 16 is formed. The part 16 is then subjeced to painting, drying, baking, etc. and the paint 13 in the other part is stripped, whereby the product (a) is completed.

Description

【発明の詳細な説明】本発明は樹脂製品の部分塗装方法に関するものである。[Detailed description of the invention] The present invention relates to a method for partially painting resin products.

従来、樹脂製品に部分塗装を施す場合には、治具を使用
して塗装しない部分を覆うか、あるいは、マスキングテ
ープを使用して塗装しない部分を覆うかし【いたが、前
者においては、見切線のシールが難かしく、複雑な形状
の製品の場合は、完全に被覆することができないため、
修正工数が増加する等の問題があり、又、後者において
は、貼り付は工数が多いため煩しく、かつ、曲線部分の
見切線の貼υ付けが困難で熟練度を必要とするだけでは
なく、テープの浮きを完全に抑えきれないために、該テ
ープを剥がすと、該部分の塗装も剥がれてしまうという
問題があった。Conventionally, when applying partial painting to resin products, it was necessary to use a jig to cover the unpainted parts or to use masking tape to cover the unpainted parts; In the case of products with complex shapes, where it is difficult to seal the cutting lines, complete coverage cannot be achieved.
There are problems such as increased man-hours for corrections, and in the latter case, pasting is troublesome because it requires a lot of man-hours, and pasting of parting lines on curved parts is difficult and requires skill. However, since lifting of the tape could not be completely suppressed, there was a problem in that when the tape was removed, the paint on the area would also come off.

そこで本発明は上記従来の問題点に鑑みてこれを解消す
るためになされたものであって、部分塗装する部分がど
のような形状であっても容易に前処理をすることができ
、しかも、見切線部分の塗装が剥れることのない樹脂製
品の部分塗装方法を提供することを目的とするものであ
る。Therefore, the present invention has been made in order to solve the above-mentioned problems of the conventional art.No matter what shape the part to be partially painted has, it can be easily pretreated, and It is an object of the present invention to provide a partial coating method for a resin product in which the coating on the parting line portion does not peel off.

以下、本発明を図示せる実施例に随って説明する。The present invention will be described below with reference to illustrative embodiments.

先ず、樹脂製品ａの塗装表面となる側の型、実施例の場
合下型１１にシリコン等の離型剤１２を塗布し、その上
から下記の配合組成からなるストリッパブルペイント１
３を全面に塗布し、乾燥させる。（第１図（イ）、（ロ
）参照）次に、表面に上記と同様の離型剤を塗布した上
型１４を重合させ、樹脂を注入し、成形加工する。（第
１図（ハ）参照）尚、該樹脂材には熱硬化性樹脂を使用
するが、焼付塗装をする場合には強化熱硬化性樹脂を使
用する方が好ましい。First, a mold release agent 12 such as silicone is applied to the mold on the side that will be the painted surface of the resin product a, the lower mold 11 in the case of the example, and then a strippable paint 1 having the following composition is applied on top of the mold release agent 12.
Apply 3 to the entire surface and let dry. (See FIGS. 1(a) and 1(b)) Next, the upper mold 14 whose surface is coated with the same mold release agent as above is polymerized, resin is injected, and molded. (See FIG. 1(c)) Although a thermosetting resin is used as the resin material, it is preferable to use a reinforced thermosetting resin when baking painting is performed.

又、樹脂製品ａの成形加工後（離型後）ストリッパブル
ペイントを更に塗布（アフターコート）することによっ
て、該ストリッパブルペイントの膜厚及び膜強度を上げ
ることができる。Further, by further applying (after-coating) the strippable paint after molding the resin product a (after releasing the mold), the film thickness and film strength of the strippable paint can be increased.

上記のようにして成形された樹脂製品ａの塗装部分に覆
われたストリッパブルペイント１３ヲ乾燥後、適宜な手
段によりカットし【剥離して塗装表面部１６を形成する
。（第１図に）、（ホ）参照）然る後、上記塗装表面部
１６を塗装置５シた後、乾燥させ、必要に応じて焼付け
を行なった後他の部分のストリッパブルペイント１３を
剥離して樹脂製品ａｆ：完成させる。（第１図（へ）、
（ト）参照）尚、上記ストリッパブルペイン）　１３を
剥離する際に離型剤１２も剥離できるため、従来性なわ
れていた離型剤１２を取るだめの脱脂作業を省略するこ
とができる。After the strippable paint 13 covered with the painted part of the resin product a molded as described above is dried, it is cut by an appropriate means and peeled off to form the painted surface part 16. (See Figure 1) and (E)) After that, the painted surface part 16 is coated, dried, and baked if necessary, and then the strippable paint 13 is applied to other parts. Peel off and complete the resin product af: (Figure 1(f),
(See (g)) Note that since the mold release agent 12 can also be peeled off when the above-mentioned strippable pane 13 is peeled off, the conventional degreasing operation to remove the mold release agent 12 can be omitted.

又、上記塗装置５を施す際、ストリッパブルペイント１
３を塗布した部分を含む樹脂製品ａの全面に塗布しても
良いし、又、塗装する部分から少しはみ出す程度に塗布
しても良い。樹脂製品ａの全面に塗布する場合は、塗料
がむだになるが、塗装のプライマ一層やエナメル層、ク
リヤ一層ニよって、焼付は時にストリッパブルペイント
１３が熱から保護されるため、可塑剤のとびが抑えられ
、膜が硬くなるのを防ぐため、焼付は後のストリッパブ
ルペイント１３の剥離性が向上する。Also, when applying the above-mentioned painting station 5, strippable paint 1
It may be applied to the entire surface of the resin product a, including the part coated with No. 3, or it may be applied to an extent that slightly protrudes from the part to be painted. If the paint is applied to the entire surface of the resin product a, the paint will be wasted, but baking may occur due to the primer layer, enamel layer, and clear coat layer, which protects the strippable paint 13 from heat and prevents the plasticizer from splashing. Since this prevents the film from becoming hard, the peelability of the strippable paint 13 after baking is improved.

ストリッパブルペイントの配合組成側倒１　　酢酸ビニール　　　　３０％トルエン　　　　　　　５０− 安定剤　　　　　　　２０％例２　　酢酸ビニール　　　　４０％メチルエチルケトン　５０％安定剤　　　　　　　１０％例３　　酢酸ビニール　　　　３５％メチルフ゛チルケトン　５０％安定剤　　　　　　　１５チ例４　　塩化ビニール　　　　４０％トルエン　　　　　　　５０％安定剤　　　　　　　１０％例５　　塩化ビニール　　　　３５％メチルエチルケトン　５０％安定剤　　　　　　　１５％例６　　塩化ビニール　　　　３０％メチルブチルケトン　５０％安定剤　　　　　　　２０チ以上述べたように本発明によれば、樹脂製品の表面に、
ストリッパブルペイントを塗布し、乾燥させた後、塗装
部分のストリッパブルペイントをカット剥離して核部を
塗装し、然る後他の部分のストリッパブルペイントを剥
離スるようにしたので、複雑な形状の製品でも見切線が
容易に、かつ、確実に出るので修正工数を削減させるこ
とができ、又、曲線部分の見切線も、従来のテープのよ
うに浮き上ることがないため、該部分の塗装も剥れるこ
とがないため塗装精度を向上させることができた。Mixing composition of strippable paint side 1 Vinyl acetate 30% Toluene 50- Stabilizer 20% Example 2 Vinyl acetate 40% Methyl ethyl ketone 50% Stabilizer 10% Example 3 Vinyl acetate 35% Methyl methyl ketone 50% Stabilizer 15 Example 4 Vinyl chloride 40% Toluene 50% Stabilizer 10% Example 5 Vinyl chloride 35% Methyl ethyl ketone 50% Stabilizer 15% Example 6 Vinyl chloride 30% Methyl butyl ketone 50% Stabilizer 20 As described above, according to the present invention, On the surface of resin products,
After applying the strippable paint and letting it dry, we cut and peeled off the strippable paint on the painted area, painted the core part, and then peeled off the strippable paint on other parts, so it was not complicated. The parting line can be easily and reliably drawn even on products with a shape, reducing the number of corrections required. Also, the parting line on curved parts does not come up like with conventional tape, so it is easy to Since the paint does not peel off, we were able to improve the accuracy of the painting.

又、本発明によれば、離型剤を除去するための脱脂作業
工程を廃止することができるため、そのための設置や装
置等を設けなくてもよいので、設備費が軽減される等の
効果を有するものである。Furthermore, according to the present invention, since the degreasing process for removing the mold release agent can be eliminated, there is no need to install or provide equipment for this purpose, resulting in effects such as reduced equipment costs. It has the following.

【図面の簡単な説明】[Brief explanation of drawings]

第１図（イ）〜（ト）は本発明による部分塗装方法を示
す作業工程図、第２図は第１図（ト）のＡ−Ａ線断面図
である。ａは樹脂製品、１１は下型、１２は離型剤、１３はスト
リッパブルペイント、１４は上型、１５は塗装、１６は
塗装表面部。特許出願人　日産車体株式会社代理人　弁理士　　土　　　井　　　　整第　　　Ｊ第２図図（1(A) to 1(G) are work process diagrams showing the partial coating method according to the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1(G). a is a resin product, 11 is a lower mold, 12 is a mold release agent, 13 is a strippable paint, 14 is an upper mold, 15 is a paint, and 16 is a painted surface portion. Patent Applicant Nissan Shatai Co., Ltd. Agent Patent Attorney Sei Doi No. J Figure 2 (

Claims

【特許請求の範囲】ｔ　樹脂製品を成形加工、するモールドの上型と下型と
に離型剤を塗布した後、樹脂製品の塗装表面とな石側の
上型もしくは下型にストリッパブルペイントを塗布し、
上型と下型とを重合させて樹脂を注入し、成形後、樹脂
製品のストリッパブルペイントをカットして剥離して塗
装表面部を形成し、該塗装表面部を塗装し、然る後、他
の部分のストリッパブルペイントを剥離したことを特徴
とする樹脂製品の部分塗装方法。２、　上記ストリッパブルペイントは、酢酸ビニールも
しくは塩化ビニールのうち、いずれか１つを３０〜４ｏ
チ、トルエン、メチルエチルケトンもしくはメチルブチ
ルケトンのうち、いずれか１つを５０％及び安定剤を１
０〜２゜チの割合で配合した組成物であることを特徴と
する特許請求の範囲第１項に記載の樹脂製品の部分塗装
方法。[Claims] t. After applying a release agent to the upper and lower molds of the mold in which the resin product is to be molded, strippable paint is applied to the upper or lower mold on the stone side, which is the painted surface of the resin product. Apply and
The upper mold and the lower mold are polymerized and resin is injected, and after molding, the strippable paint of the resin product is cut and peeled off to form a painted surface part, the painted surface part is painted, and then, A method for partially painting a resin product, characterized by removing strippable paint from other parts. 2. The above strippable paint contains either vinyl acetate or vinyl chloride at 30~40°C.
50% of any one of H, toluene, methyl ethyl ketone or methyl butyl ketone and 1 stabilizer.
2. The method for partially coating a resin product according to claim 1, wherein the composition is blended at a ratio of 0 to 2 degrees.