JPH0630724B2 - Partial coating film repair method - Google Patents
Partial coating film repair methodInfo
- Publication number
- JPH0630724B2 JPH0630724B2 JP24097486A JP24097486A JPH0630724B2 JP H0630724 B2 JPH0630724 B2 JP H0630724B2 JP 24097486 A JP24097486 A JP 24097486A JP 24097486 A JP24097486 A JP 24097486A JP H0630724 B2 JPH0630724 B2 JP H0630724B2
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- paint
- repair
- coating
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【発明の詳細な説明】 [産業上の利用分野] 本発明は塗膜の部分補修方法に関する。さらに詳しく
は、チタナイズドマイカ顔料または真珠光沢顔料などを
含有する塗膜のごとき隠蔽力が小さい上塗塗膜を有する
塗膜の部分補修方法に関する。The present invention relates to a method for partially repairing a coating film. More specifically, it relates to a method for partially repairing a coating film having an overcoating film having a small hiding power, such as a coating film containing a titanized mica pigment or a pearlescent pigment.
[従来の技術] チタナイズドマイカ顔料または真珠光沢顔料を含有する
上塗塗膜を有する塗装は一般にパール塗装と称され、そ
の特異な意匠効果により自動車ボデーなどの塗装に採用
されている。[Prior Art] A coating having a top coating film containing a titanized mica pigment or a pearlescent pigment is generally called a pearl coating and is used for coating an automobile body or the like due to its unique design effect.
パール塗装においては塗装の基本色は前記上塗塗膜の下
地の着色塗膜の塗色であり、この着色塗膜の塗色を外観
に出すために上塗塗膜の隠蔽力は小さいものである。そ
のためパール塗装を部分補修するに際しては通常の補修
方法を採用しがたく、たとえばつぎのごとき補修方法が
提案されている(特公昭57-60910号公報参照)。In the pearl coating, the basic color of the coating is the coating color of the underlying colored coating film of the above-mentioned top coating film, and the hiding power of the top coating film is small in order to give the appearance of the coating color of this colored coating film. Therefore, it is difficult to adopt a normal repairing method when partially repairing the pearl coating, and for example, the following repairing method has been proposed (see Japanese Patent Publication No. 57-60910).
すなわち、パール塗装は第4図に示すごとく、予め電着
塗膜などが形成されている被塗物(20)上に、着色下地塗
膜(21)、チタナイズドマイカ顔料または真珠光沢顔料を
含有する低隠蔽力の上塗塗膜(22)およびクリヤー塗膜(2
3)を順次形成したものであるが、この塗装塗膜に着色下
地塗膜(21)に達する不具合部位があるばあいに部分補修
を行なうには、まず被塗物(20)の補修しようとする部位
に着色下地塗膜(21)に達するまでベース研ぎを行なう。
第4図において、(A) はベース研ぎ面を示す。つぎにベ
ース研ぎ面(A) に現われている着色下地塗膜(21)面およ
び上塗塗膜(22)面を完全に覆うように補修着色下地塗膜
(21a) を形成し、ついで該補修着色下地塗膜(21a) 上に
これを覆う程度に補修上塗塗膜(22a) を形成し、さらに
そのうえに補修クリヤー塗膜(23a) を形成することによ
って補修塗装を完了する。That is, as shown in FIG. 4, the pearl coating contains a colored undercoat film (21), a titanized mica pigment or a pearlescent pigment on an article (20) on which an electrodeposition coating film or the like is previously formed. Low hiding power top coat (22) and clear coat (2
3) is formed in order, but if there is a defective part in this coating film that reaches the colored base coating film (21), in order to carry out partial repair, first try to repair the coating object (20). Base polishing is performed until the colored undercoat film (21) is reached on the portion to be etched.
In FIG. 4, (A) shows the ground surface of the base. Next, repair the colored undercoat so that the colored undercoat (21) and the overcoat (22) appearing on the base sharpening surface (A) are completely covered.
(21a) is formed, and then a repair top coat film (22a) is formed on the repair colored base coat film (21a) to such an extent as to cover it, and a repair clear coat film (23a) is further formed on the repair colored top coat film (23a). Finish painting.
[発明が解決しようとする問題点] しかしながら、前記の補修方法によるときはつぎのごと
き問題がある。[Problems to be Solved by the Invention] However, there are the following problems when the above-mentioned repair method is used.
すなわち、補修部に補修用塗料を吹付ける際には補修部
の中央部から外方向に向けて1付けるのが通常の方法で
あるが、前述のごとく上塗塗膜(22)は隠蔽力がほとんど
ないから、ベース研ぎ面(A) における着色下地塗膜(21)
と上塗塗膜(22)との境界部(B) 、および上塗塗膜(22)と
クリヤー塗膜(23)との境界部(C) の見分けがつきにく
く、そのため前記のごとき吹付け方法で補修着色下地塗
膜(21a) および補修上塗塗膜(22a) の外周部を第4図に
示すごとく正確にオーバーラップさせるのは非常に困難
である。That is, when spraying the repair paint onto the repair part, it is a normal method to apply 1 from the center of the repair part to the outside, but as described above, the top coat film (22) has almost no hiding power. There is no colored base coat (21) on the base sharpened surface (A)
It is difficult to distinguish the boundary part (B) between the top coating film (22) and the top coating film (22) and the boundary part (C) between the top coating film (22) and the clear coating film (23). It is very difficult to exactly overlap the outer peripheral portions of the repaired colored base coat (21a) and the repair top coat (22a) as shown in FIG.
そのため、補修着色下地塗膜(21a) および補修上塗塗膜
(22a) の外周部におけるオーバーラップが充分でなく外
周部に帯状のあとが残ったり、さらに前記上塗塗膜(22
a) がオーバーラップしすぎるとチタナイズドマイカ顔
料のうち干渉色の強いものを用いたばあいはオーバーラ
ップ部の干渉色が強くなりすぎ補修部分が目立つなどの
不具合が生じる。Therefore, repair colored base coat (21a) and repair top coat
The overlap in the outer peripheral part of (22a) is not sufficient, and a band-shaped mark remains on the outer peripheral part, and the above-mentioned top coating film (22
If (a) overlaps too much, if a titanized mica pigment with a strong interference color is used, the interference color of the overlap portion becomes too strong and the repaired part becomes conspicuous.
前記補修方法を、不具合部位が上塗塗膜(22)で留まるば
あい(すなわちベース研ぎを上塗塗膜(22)で留めるばあ
い)の塗膜の部分補修に適用しようとするばあいにも、
上塗塗膜(22)の低隠蔽力に起因する前記のごとき不具合
が生じる。Even when trying to apply the above-mentioned repair method to partial repair of the coating film when the defective portion remains in the top coating film (22) (that is, when the base sharpening is stopped with the top coating film (22)),
The above-mentioned problems occur due to the low hiding power of the top coat film (22).
本発明は前記の点に鑑みて、パール塗装などにおいて、
非補修部の塗膜と補修塗膜との境界部の仕上りが良好な
補修が比較的容易に行なえる部分補修方法を提供するこ
とを目的とする。In view of the above points, the present invention is a pearl coating and the like.
It is an object of the present invention to provide a partial repair method in which a good finish at the boundary between a coating film in a non-repaired portion and a repair coating film can be performed relatively easily.
[問題点を解決するための手段] 本発明は、塗膜物上に形成された着色下地塗膜のうえに
低隠蔽力の上塗塗料を用いて上塗塗膜を形成し、さらに
そのうえに前記上塗塗料と塗料樹脂が同種のクリヤー塗
料を用いてクリヤー塗膜を形成してなる塗装塗膜を部分
的に前記上塗塗膜に達する深さまで補修するに際して、
補修部分の塗膜に前記上塗塗膜に達する深さまでベース
研ぎを施したのち、前記上塗塗料と同一塗色、同種樹脂
のものであって、かつ顔料濃度および粘度が低く調整さ
れた補修用上塗塗料を、ベース研ぎ面の外周部に前記ク
リヤー塗膜と一部重なり合うように帯状に塗布し、しか
るのちに前記上塗塗料と同種の塗料を用いて補修部全面
に補修上塗塗膜を形成し、さらにそのうえに前記クリヤ
ー塗料と同種の塗料を用いてウエットオンウエットで補
修クリヤー塗膜を形成し、そののち焼付乾燥することを
特徴とする塗膜の部分補修方法に関する。[Means for Solving Problems] The present invention forms a top coat film using a top coat paint having a low hiding power on a colored base coat film formed on a coating material, and further, the above-mentioned top coat paint. When repairing a coating film formed by forming a clear coating film using the same type of clear coating resin and a coating resin to a depth reaching the top coating film,
After the base is sharpened to the depth of reaching the depth of the top coat, the repair top coat of the same paint color and the same type of resin as the top coat, but with a low pigment concentration and viscosity. The coating is applied in a strip shape on the outer peripheral portion of the base sharpening surface so as to partially overlap with the clear coating film, and then a repair topcoat coating film is formed on the entire repair portion using the same type of paint as the topcoat coating material, Further, the present invention relates to a method for partially repairing a coating film, in which a repair clear coating film is formed by wet-on-wet using a coating material of the same type as the above-mentioned clear coating material and then baked and dried.
[実施例] つぎに本発明の塗膜の部分補修方法を図面に基づいて説
明する。[Examples] Next, a method for partially repairing a coating film of the present invention will be described with reference to the drawings.
第1〜3図は本発明の方法を工程順に示す概略説明図で
ある。1 to 3 are schematic explanatory views showing the method of the present invention in the order of steps.
本発明の部分補修の対象となる塗膜は、第1図に示され
るごとく、予め電着塗膜などが形成されている被塗物
(1)上に、着色下地塗膜(2)、低隠蔽力の上塗塗膜(3)お
よびクリヤー塗膜(4)を順次形成した塗膜であり、とく
に低隠蔽力の上塗塗膜(3)がチタナイズドマイカ顔料ま
たは真珠光沢顔料を含有するパール塗装塗膜に好適に適
用されるものである。The coating film to be partially repaired according to the present invention is, as shown in FIG. 1, an article to which an electrodeposition coating film or the like is previously formed.
(1), a colored base coating film (2), a low hiding power top coating film (3) and a clear coating film (4) are sequentially formed, especially a low hiding power top coating film (3 ) Is preferably applied to a pearl coating film containing a titanized mica pigment or a pearlescent pigment.
通常、着色下地塗膜(2)を与える着色塗料(2)として熱硬
化性アミノアルキド樹脂塗料が用いられ、上塗塗膜(3)
を与える上塗塗料(3)およびクリヤー塗膜(4)を与えるク
リヤー塗料(4)として熱硬化性アクリル樹脂塗料が用い
られ、そのため着色下地塗膜(2)を一旦焼付乾燥したの
ち、上塗塗膜(3)を形成し、そのうえにウエットオンウ
エットでクリヤー塗膜(4)を形成し、最後に上塗塗膜(3)
およびクリヤー塗膜(4)を一緒に焼付乾燥して塗装を完
了している。しかし、本発明の補修対象となる塗膜を形
成するに用いる塗料の種類などはとくに限定されるもの
ではない。Usually, a thermosetting amino alkyd resin paint is used as a colored paint (2) that gives a colored base coat (2), and a top coat (3)
A thermosetting acrylic resin coating is used as a clear coating (4) that gives a top coating (3) and a clear coating (4), and therefore the colored base coating (2) is once baked and dried, and then the top coating is applied. (3) is formed, and then a clear coating film (4) is formed by wet on wet, and finally a top coating film (3)
The clear coating film (4) is baked and dried together to complete the coating. However, the type of paint used to form the coating film to be repaired by the present invention is not particularly limited.
前記のごときパール塗装塗膜を本発明の方法に従って部
分補修するに際しては、第1図に示すごとく、まず補修
部を耐水研磨紙などの適宜の手段によってやや大きめの
範囲にわたり上塗塗膜(3)に達するベース研ぎを行な
い、ベース研ぎ面(X) を脱脂洗浄し、乾燥する。When partially repairing the pearl paint coating film as described above according to the method of the present invention, as shown in FIG. 1, first, the repaired portion is overcoated over a relatively large range by an appropriate means such as water resistant abrasive paper (3). Grind the base to reach, clean the base grinding surface (X) with degreasing, and dry it.
つぎに前記ベース研ぎ面(X) に本発明の方法にしたがっ
て補修塗装を施す。Next, the base sharpening surface (X) is subjected to repair coating according to the method of the present invention.
本発明においては、従来方と異なり、第2図に示すごと
く、まずベース研ぎ面(X) の外周部の上塗塗膜(3)およ
びクリヤー塗膜(4)の研ぎ面に予備的な補修上塗塗膜(3
b)を帯状に形成する、この塗膜(3b)はベース研ぎ面(X)
の外周部に帯状に形成されるから、補修部の外周部にリ
ング状の補修塗膜が形成されることになる。In the present invention, unlike the conventional method, as shown in FIG. 2, first, a preliminary repair top coat is applied to the top coat film (3) of the outer periphery of the base polishing surface (X) and the polishing surface of the clear coating film (4). Coating film (3
b) is formed into a strip, this coating (3b) is the base polishing surface (X)
The strip-shaped repair coating film is formed on the outer peripheral portion of the repair portion because the strip-shaped repair coating film is formed on the outer peripheral portion.
前記補修上塗塗膜(3b)の形成に用いる補修用上塗塗料(3
b)としては、前記上塗塗料(3)と同一塗色、同種樹脂の
ものであるが、顔料濃度および粘度が低く調整されたも
のが用いられる。Repair topcoat paint (3b) used to form the repair topcoat film (3b)
As b), the same coating color and the same type of resin as those of the above-mentioned top coating composition (3), but the pigment concentration and viscosity adjusted to be low are used.
前記補修用上塗塗料(3b)として前記のごとく低粘度のも
のを用いるのは、この塗料の塗膜は比較的薄くする必要
があり、そのためレベリング性がよくなければならない
からである。たとえば上塗塗料(3)としての熱硬化性ア
クリル樹脂塗料のばあい粘度が13〜15秒程度(フォード
カップ#4(20℃)による測定値、以下同様)のものが
用いられているのに対して、補修用上塗塗料(3b)として
の熱硬化性アクリル樹脂塗料のばあい粘度が10〜12秒程
度のものが用いられる。The above-mentioned topcoat paint for repair (3b) having a low viscosity as described above is used because the coating film of this paint needs to be relatively thin and therefore the leveling property must be good. For example, while the thermosetting acrylic resin paint used as the top coat paint (3) has a viscosity of about 13 to 15 seconds (measured by Ford cup # 4 (20 ° C), the same applies below), Thus, a thermosetting acrylic resin paint as the top coat paint for repair (3b) having a viscosity of about 10 to 12 seconds is used.
上塗塗料(3b)において顔料濃度(固形分に対する濃度を
いう、以下同様)を低減するのは、たとえば干渉色を呈
するパール塗装のばあいには、上塗塗膜(3a)がオーバー
ラップした際の干渉色が異常に強くなることをさけるた
めである。通常上塗塗料(3)における顔料濃度の3/4 〜1
/2 程度とされる。In the top coating (3b), it is necessary to reduce the pigment concentration (the concentration with respect to the solid content, the same applies below) when the top coating (3a) overlaps, for example, in the case of pearl coating that exhibits an interference color. This is to prevent the interference color from becoming abnormally strong. 3/4 to 1 of the pigment concentration in the normal topcoat (3)
It is about / 2.
補修用上塗塗料(3b)は上塗塗料(3)とクリヤー塗料(4)を
適宜の割合で混合することによって調製することができ
るので、専用の塗料を特別に調製する必要はとくにな
く、便利である。The topcoat paint for repair (3b) can be prepared by mixing the topcoat paint (3) and the clear paint (4) in an appropriate ratio, so it is not necessary to prepare a special paint specially, and it is convenient. is there.
前記補修用上塗塗料(3b)はベース研ぎ面(X) の外周部に
帯状に塗布される。従来における補修用塗料の吹付け
は、ベース研ぎ面(X) の外周部にも中央部と同時に吹付
けるため、スプレーガンを中央部から外周部の方向に動
かしながら行なっているが、この吹付け法をそのまま適
用すると上塗塗膜(3)とクリヤー塗膜(4)との境界部(Y)
の見分けがつきにくいため、重ね合せが不充分となった
り、過剰になったりするなどの不具合が生じる。しかる
に本発明においては前記のごとくスプレーガンをベース
研ぎ面(X) の外周部に塗膜の境界線に沿って移動させな
がら塗布しているから、境界部(Y) の見分けがつきにく
くとも、比較的正確に所望通りの領域に塗料を塗布でき
る。The topcoat paint for repair (3b) is applied in a strip shape on the outer peripheral portion of the base polishing surface (X). Conventional spraying of repair paint is performed while moving the spray gun in the direction from the center to the outer periphery because the outer periphery of the base polishing surface (X) is also sprayed at the same time as the center. When the method is applied as it is, the boundary part (Y) between the top coating film (3) and the clear coating film (4)
Since it is difficult to distinguish between the two, problems such as insufficient or excessive superposition occur. However, in the present invention, as described above, the spray gun is applied to the outer peripheral portion of the base polishing surface (X) while moving along the boundary line of the coating film, so that it is difficult to distinguish the boundary portion (Y), The paint can be applied to the desired area relatively accurately.
補修上塗塗膜(3b)は通常第2図に示されるごとく、ベー
ス研ぎ面(X) の傾斜面が上塗塗膜(3)上にクリヤー塗膜
(4)と一部が若干重なり合うように設けられる。As shown in Fig. 2, the repair topcoat (3b) is usually a clear coating with the inclined surface of the base polishing surface (X) on the topcoat (3).
It is provided so that it partially overlaps with (4).
通常補修上塗塗膜(3b)がウエットな状態でつぎの塗膜を
形成するため、上塗塗膜(3b)は補修部全体の塗装を完了
する時点で焼付乾燥される。Normally, the next coating film is formed in a wet state of the repairing top coating film (3b), and thus the top coating film (3b) is baked and dried at the time when the coating of the entire repaired part is completed.
前記のようにベース研ぎ面(X) の外周部に予備的な補修
塗装を行なったのち、第3図に示すごとく補修部全体の
塗装を行なう。After the preliminary repair coating is applied to the outer peripheral portion of the base polishing surface (X) as described above, the entire repair portion is painted as shown in FIG.
すなわち第3図に示すごとく、補修部全体に補修上塗塗
膜(3a)および補修クリヤー塗膜(4a)を形成する。That is, as shown in FIG. 3, a repair top coating film (3a) and a repair clear coating film (4a) are formed on the entire repair portion.
補修上塗塗膜(3a)を形成するための補修用上塗塗料(3a)
としては前記上塗塗料(3)と同様なものが用いられる。
補修クリヤー塗膜(4a)を形成するための補修用クリヤー
塗料(4a)としては前記クリヤー塗料(4)と同様なものが
用いられる。Topcoat for repair (3a) for forming repair topcoat (3a)
As the above, the same as the above-mentioned top coating composition (3) is used.
As the clear coating for repair (4a) for forming the repair clear coating film (4a), the same one as the above-mentioned clear coating (4) is used.
補修クリヤー塗膜(4a)は補修上塗塗膜(3a)のうえにウエ
ットオンウエットで形成される。The repair clear coating film (4a) is formed on the repair top coating film (3a) by wet on wet.
本発明において、ベース研ぎ面(X) の外周部には前記の
ごとく予備的な補修塗装がすでに行なわれているから、
補修用の上塗塗料(3a)およびクリヤー塗料(4a)の塗布は
従来の補修用塗料の吹付け法と同様にして中央部から外
周部に向けてスプレーガンを動かしながら塗布する方法
によって、特別の注意を払わなくとも、外周部の仕上り
の良好な補修塗膜をうることができる。その際上塗塗料
(3a)は研ぎ出されている上塗塗膜(3)のうえに外周部に
おいて予備的補修上塗塗膜(3b)をほぼ覆うように塗布す
ればよい。最後に補修部全体にクリヤー塗料(4a)を塗布
し、焼付乾燥することによって補修塗装が完了する。In the present invention, the outer peripheral portion of the base sharpening surface (X) has already been subjected to the preliminary repair coating as described above,
The topcoat paint (3a) and clear paint (4a) for repair are applied by a special method by moving the spray gun from the center to the outer periphery in the same way as the conventional spraying method for repair paint. Even without paying attention, it is possible to obtain a repair coating film having a good outer peripheral finish. Top coat paint in that case
(3a) may be applied on the top coat film (3) that has been sharpened so as to cover the preliminary repair top coat film (3b) at the outer peripheral portion. Finally, the clear paint (4a) is applied to the entire repair area and baked to complete the repair painting.
つぎに実施例および比較例をあげて本発明の方法を説明
する。Next, the method of the present invention will be described with reference to Examples and Comparative Examples.
以下の実施例および比較例においてはつぎのように作製
した塗装試験片を部分補修の対象とした。In the following examples and comparative examples, the coating test pieces prepared as described below were subjected to partial repair.
大きさ 300mm× 450mm、厚さ 0.8mmの鋼板(材質:JIS
G 3141)を予め脱脂、化成処理したのち、乾燥膜厚20μ
mの電着塗膜を施した。Steel plate with a size of 300 mm × 450 mm and a thickness of 0.8 mm (Material: JIS
G 3141) is preliminarily degreased and chemically treated, then dried film thickness 20μ
m electrodeposition coating film was applied.
電気電着塗膜上に第1表に示す着色塗料を塗布し、 140
℃×20分(keep)の条件で焼付乾燥して厚さ25μmの着色
下地塗膜(2)を形成した。Apply the coloring paint shown in Table 1 on the electrodeposition coating film,
It was baked and dried at a temperature of 20 ° C. for 20 minutes (keep) to form a colored base coating film (2) having a thickness of 25 μm.
つぎに前記着色下地塗膜(2)の表面を#500 の耐水研磨
紙を用いて水研ぎし、充分に水洗いしたのち乾燥した。
ついで水研ぎ面をエチルアルコールによって脱脂したの
ち、第2表に示す上塗塗料を乾燥膜厚が15μmとなるよ
うに塗布して上塗塗膜(3)を形成し、その塗膜がウエッ
トな状態でさらに第3表に示すクリヤー塗料を乾燥膜厚
が25μmとなるように塗布してクリヤー塗膜(4)を形成
し、そののち 140℃×20分(keep)の条件下に焼付乾燥し
た。 Next, the surface of the colored base coating film (2) was water-polished using a # 500 water-resistant abrasive paper, thoroughly washed with water, and then dried.
Then, after degreasing the water-polished surface with ethyl alcohol, the top-coat paint shown in Table 2 was applied to a dry film thickness of 15 μm to form a top-coat coating film (3), and the coating film was wet. Further, the clear coating material shown in Table 3 was applied so as to have a dry film thickness of 25 μm to form a clear coating film (4), which was then baked and dried at 140 ° C. for 20 minutes (keep).
実施例 前記塗装試験片の塗膜の中央部に 100円硬貨の縁で上塗
塗膜(3)に達する長さ2cmの×印の傷をつけ、#500 の
耐水研磨紙で該傷を中心として直径約10cmの略円形の範
囲で傷が消失するまでベース研ぎを行ない、充分に水洗
いしたのちエチルアルコールで脱脂した。 Example A scratch of 2 cm in length reaching the top coating film (3) was marked at the center of the coating film of the above-mentioned coating test piece with the edge of a 100-yen coin, and the scratch was mainly made with # 500 water-resistant abrasive paper. The base was sharpened until the scratch disappeared in a substantially circular area with a diameter of about 10 cm, washed thoroughly with water, and then degreased with ethyl alcohol.
つぎに第2〜3図に示すごとく補修塗装を行なった。Next, repair coating was performed as shown in FIGS.
まず、第4表に示す補修用上塗塗料をベース研ぎ面(X)
の外周部の上塗塗膜(3)のうえに一部がクリヤー塗膜(4)
と若干重なり合うように、かつ乾燥平均膜厚が約10μm
となるように帯状に塗布して予備的補修上塗塗粽(3b)を
形成した。なお、第4表に示す補修用上塗塗料は第2表
に示す上塗塗料と第3表に示すクリヤー塗料を7:3
(固形分重量比)で混合して調製したものである。First, use the topcoat for repair shown in Table 4 as the base polishing surface (X)
Part of the clear coating film (4) on top of the outer coating film (3)
And the average dry film thickness is about 10 μm
Was applied in the form of a strip to form a preparatory repair top coat (3b). The topcoat paint for repair shown in Table 4 is the topcoat paint shown in Table 2 and the clear paint shown in Table 3 at 7: 3.
It was prepared by mixing (solid content weight ratio).
前記上塗塗料(3b)の塗布はスプレーガンをベース研ぎ面
(X) の外周部に沿って移動させながら行なったが、容易
に所定の領域に該塗料を所定の厚さで塗布することがで
きた。The top coat (3b) is applied using a spray gun as a base.
It was carried out while moving along the outer peripheral portion of (X), but it was possible to easily apply the coating material to a predetermined region in a predetermined thickness.
ついで、上塗塗膜(3b)がウエットな状態で第2表に示す
上塗塗料を研ぎ出されている上塗塗膜(3)のうえ全面に
これと同程度の高さになるまで塗布してウエットな補修
上塗塗膜(3a)を形成し、さらにそのうえに第3表に示す
クリヤー塗料をクリヤー塗膜(4)と同程度の厚さとなる
ように塗布して補修クリヤー塗膜(4a)を形成し、しかる
のちこれらウエットな塗膜を 140℃×20分(keep)の条件
で焼付乾燥して補修塗装を完了した。 Then, with the top coat film (3b) in a wet state, the top coat paint shown in Table 2 is ground and applied to the entire top coat film (3) to a height similar to this, and wet To form a repair top coat film (3a), and then apply the clear paint shown in Table 3 to the same thickness as the clear coat film (4) to form the repair clear coat film (4a). After that, these wet coatings were baked and dried at 140 ° C. for 20 minutes (keep) to complete the repair coating.
補修塗装を行なった塗装試験片について、目視により塗
面状態を調べたが、未補修部と補修部、とくにその外周
部との間に色差、光沢、色味などに関し、何らの有意差
も認められなかった。The coating surface condition of the coating test piece that had been subjected to repair painting was visually inspected, but no significant difference was found between the unrepaired part and the repaired part, especially the peripheral part, in terms of color difference, gloss, tint, etc. I couldn't do it.
比較例 前記の塗装試験片について補修部を実施例と同様にベー
ス研ぎし、ついで従来の補修塗料吹付け法にしたがって
補修塗装を行なった。Comparative Example The repair part of the above-mentioned coating test piece was subjected to base polishing in the same manner as in the example, and then repair coating was performed according to the conventional repair paint spraying method.
第2表に示される上塗塗料を、ベース研ぎ面(X) に現わ
れている上塗塗膜(3)の全面にかつクリヤー塗膜(4)と一
部重なり合うようにスプレーガンを補修部の中央部から
外周部方向に動かしながら塗布してウエットな補修上塗
塗膜を形成し、さらにそのうえに第3表に示すクリヤー
塗料を塗布してウエットな補修クリヤー塗膜を形成し、
そののち 140℃×20分(keep)の条件で焼付乾燥した。Apply the spray paint shown in Table 2 to the central part of the repaired part so that the top coat film (3) appearing on the base sharpening surface (X) and the clear coat film (4) partially overlap. Is applied while moving in the direction of the outer peripheral portion to form a wet repair top coat film, and further, a clear paint shown in Table 3 is applied to form a wet repair clear coat film.
Then, it was baked and dried at 140 ° C. for 20 minutes (keep).
前記上塗塗料を塗布する際、上塗塗料を吹き付けるにつ
れて上塗塗膜(3)とクリヤー塗膜(4)との境界部(Y) の見
分けがつきにくくなるため、上塗塗料をどの程度塗り重
ねたかの判断が非常に困難であった。When applying the topcoat paint, it becomes difficult to distinguish the boundary (Y) between the topcoat paint film (3) and the clear paint film (4) as the topcoat paint is sprayed. Was very difficult.
[発明の効果] パール塗装など隠蔽力の小さい上塗塗膜を有する塗装塗
膜の部分補修に際して、まず非補修部と補修部との境界
部を重点的に補修塗装することによって、該境界部の仕
上りの良好な補修が比較的に容易に行なえるようになっ
た。[Effects of the Invention] When partially repairing a coating film having an overcoating film with a small hiding power such as pearl coating, first, the boundary part between the non-repaired part and the repaired part is intensively repair-coated, thereby Repairs with a good finish have become relatively easy to perform.
第1〜3図は本発明の部分補修方法を工程順に示す概略
説明図、第4図は従来法を示す概略説明図である。 (図面の主要符号) (2):着色下地塗膜 (3):上塗塗膜 (3a)、(3b):補修上塗塗膜 (4):クリヤー塗膜 (4a):補修クリヤー塗膜1 to 3 are schematic explanatory views showing the partial repairing method of the present invention in the order of steps, and FIG. 4 is a schematic explanatory view showing a conventional method. (Main symbols in the drawing) (2): Colored base coat (3): Top coat (3a), (3b): Repair top coat (4): Clear coat (4a): Repair clear coat
Claims (1)
に低隠蔽力の上塗塗料を用いて上塗塗膜を形成し、さら
にそのうえに前記上塗塗料と塗料樹脂が同種のクリヤー
塗料を用いてクリヤー塗膜を形成してなる塗装塗膜を部
分的に前記上塗塗膜に達する深さまで補修するに際し
て、補修部分の塗膜に前記上塗塗膜に達する深さまでベ
ース研ぎを施したのち、前記上塗塗料と同一塗色、同種
樹脂のものであって、かつ顔料濃度および粘度が低く調
整された補修用上塗塗料を、ベース研ぎ面の外周部に前
記クリヤー塗膜と一部重なり合うように帯状に塗布し、
しかるのちに前記上塗塗料と同種の塗料を用いて補修部
全面に補修上塗塗膜を形成し、さらにそのうえに前記ク
リヤー塗料と同種の塗料を用いてウエットオンウエット
で補修クリヤー塗膜を形成し、そののち焼付乾燥するこ
とを特徴とする塗膜の部分補修方法。1. A topcoat coating film is formed by using a topcoat paint having a low hiding power on a colored undercoat film formed on an object to be coated, and further a clear paint of the same kind as the topcoat paint and the coating resin is further formed thereon. When partially repairing a coating film formed by using a clear coating film to a depth reaching the top coating film, after subjecting the coating of the repaired part to a base polishing to a depth reaching the top coating film, A topcoat paint for repair, which has the same paint color and the same kind of resin as the above topcoat paint, and whose pigment concentration and viscosity have been adjusted to a low level, is formed on the outer periphery of the base polishing surface so as to partially overlap the clear paint film. Apply to
After that, a repair topcoat coating film is formed on the entire surface of the repaired portion using the same type of paint as the topcoat paint, and further a repair clear coating film is formed on the wet-on-wet using the same type of paint as the clear paint. A method for partially repairing a coating film, which comprises baking and drying afterwards.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24097486A JPH0630724B2 (en) | 1986-10-09 | 1986-10-09 | Partial coating film repair method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24097486A JPH0630724B2 (en) | 1986-10-09 | 1986-10-09 | Partial coating film repair method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6393380A JPS6393380A (en) | 1988-04-23 |
JPH0630724B2 true JPH0630724B2 (en) | 1994-04-27 |
Family
ID=17067428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24097486A Expired - Lifetime JPH0630724B2 (en) | 1986-10-09 | 1986-10-09 | Partial coating film repair method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0630724B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08157753A (en) | 1994-12-01 | 1996-06-18 | Nippon Paint Co Ltd | Coating composition and repair of coating film containing brightener |
US6777033B2 (en) * | 2002-03-18 | 2004-08-17 | E. I. Du Pont De Nemours And Company | Process for refinishing substrates |
-
1986
- 1986-10-09 JP JP24097486A patent/JPH0630724B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS6393380A (en) | 1988-04-23 |
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