JP3098753B2 - Screen printing plate and method of manufacturing printed wiring board using the same - Google Patents
Screen printing plate and method of manufacturing printed wiring board using the sameInfo
- Publication number
- JP3098753B2 JP3098753B2 JP02036556A JP3655690A JP3098753B2 JP 3098753 B2 JP3098753 B2 JP 3098753B2 JP 02036556 A JP02036556 A JP 02036556A JP 3655690 A JP3655690 A JP 3655690A JP 3098753 B2 JP3098753 B2 JP 3098753B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- emulsion
- gauze
- printing
- screen printing
- 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 - Fee Related
Links
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- Screen Printers (AREA)
- Printing Methods (AREA)
- Manufacturing Of Printed Wiring (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はプリント配線板のスクリーン印刷方法に関す
るものである。Description: TECHNICAL FIELD The present invention relates to a screen printing method for a printed wiring board.
従来の技術 従来、プリント配線板のスクリーン印刷においては、
印刷時のにじみの原因となる版の乳剤の被印刷物側にイ
ンキがまわることを防止するために、第２図あるいは第
３図に示すような方法をとっていた。第２図において、
１は版枠、２は紗、３は紗２の上に形成された乳剤、５
はスキージ、６は被印刷物、７は印刷機のステージ、８
はインキであり、インキ８の粘度を高くすることによ
り、インキ８の流動性を悪くして、インキ８が紗２の上
に形成された乳剤３の裏にまわることを防止していた。2. Description of the Related Art Conventionally, in screen printing of a printed wiring board,
A method as shown in FIG. 2 or FIG. 3 is employed to prevent the ink from flowing on the printing material side of the emulsion of the plate, which causes bleeding during printing. In FIG.
1 is a plate frame, 2 is a gauze, 3 is an emulsion formed on the gauze 2, 5
Is a squeegee, 6 is a substrate, 7 is a stage of a printing press, 8
Is an ink. By increasing the viscosity of the ink 8, the fluidity of the ink 8 is deteriorated, and the ink 8 is prevented from spreading on the back of the emulsion 3 formed on the gauze 2.
また、第３図において１は版枠、２は紗、３は紗２の
上に形成された乳剤、５はスキージ、６は被印刷物、７
は印刷機のステージ、８はインキであり、紗２の上に形
成された乳剤３の厚みを厚くすることによってインキ８
に対する障壁効果を出し、インキ８が紗２の上に形成さ
れた乳剤３の裏にまわることを防止していた。Also, in FIG. 3, 1 is a plate frame, 2 is a gauze, 3 is an emulsion formed on the gauze 2, 5 is a squeegee, 6 is a printing material, 7
Denotes a stage of a printing press, 8 denotes an ink, and the ink 8 is formed by increasing the thickness of the emulsion 3 formed on the gauze 2.
To prevent the ink 8 from flowing behind the emulsion 3 formed on the gauze 2.
他方、いったん版の乳剤の被印刷物側にまわったイン
キを除去するために、第４図あるいは第５図に示すよう
な方法をとっていた。第４図において、１は版枠、３は
紗２の上に形成された乳剤、６は被印刷物、７は印刷機
のステージ、13は紗２の上に形成された乳剤３の裏にま
わったインキ、14は溶剤を含ませたウエス、15は作業者
であり、紗２の上に形成された乳剤３の裏にまわったイ
ンキ13は、作業者15が溶剤を含ませたウエス14を用いて
拭き取ることにより除去していた。On the other hand, a method as shown in FIG. 4 or FIG. 5 is employed to remove the ink that has once circulated on the printing material side of the plate emulsion. In FIG. 4, reference numeral 1 denotes a plate frame, 3 denotes an emulsion formed on the gauze 2, 6 denotes a substrate, 7 denotes a stage of a printing press, and 13 denotes a back surface of the emulsion 3 formed on the gauze 2. Ink 14, reference numeral 14 denotes a solvent-containing waste cloth, reference numeral 15 denotes a worker, and ink 13 wrapped around the back of the emulsion 3 formed on the gauze 2 is used by the worker 15 to remove the solvent-containing waste cloth 14. And removed by wiping.
また、第５図において、１は版枠、２は紗、３は紗２
の上に形成された乳剤、５はスキージ、６は被印刷物、
７は印刷機のステージ、13は紗２の上に形成された乳剤
３の裏にまわったインキ、16はフィルム、17はフィルム
16の上に形成された粘着層であり、紗２の上に形成され
た乳剤３の裏にまわったインキ13は、被印刷物６の上に
置かれたフィルム16の上に形成された粘着層17上にダミ
ー印刷することによってフィルム16の上に形成された粘
着層17上に転写して除去していた。In FIG. 5, 1 is a frame, 2 is a gauze, 3 is a gauze 2
5 is a squeegee, 6 is a substrate,
7 is the stage of the printing press, 13 is the ink around the back of the emulsion 3 formed on the gauze 2, 16 is the film, 17 is the film
The ink 13, which is an adhesive layer formed on the print 16 and wrapped around the emulsion 3 formed on the gauze 2, is formed on the film 16 placed on the printing material 6. The dummy printing was performed on the adhesive layer 17 to transfer and remove the adhesive layer 17 formed on the film 16.
発明が解決しようとする課題 このような従来のプリント配線板のスクリーン印刷方
法では、紗２の上に形成された乳剤３の裏にインキ８が
まわることを防止するためにインキ８の流動性を悪くし
たり、紗２の上に形成された乳剤３の厚みを厚くしたた
めに、被印刷物６へのインキ８の転写性が悪くなる。そ
のため、第６図に示すように、ソルダレジスト印刷で
は、特に銅はく回路10近傍にソルダレジストインキ11の
かすれた部分12が発生してしまうという課題があった。According to such a conventional screen printing method for a printed wiring board, the fluidity of the ink 8 is controlled in order to prevent the ink 8 from spreading on the back of the emulsion 3 formed on the gauze 2. The transferability of the ink 8 to the printing material 6 is deteriorated due to the deterioration or the increase in the thickness of the emulsion 3 formed on the gauze 2. Therefore, as shown in FIG. 6, in the solder resist printing, there is a problem that the blurred portion 12 of the solder resist ink 11 is generated particularly in the vicinity of the copper foil circuit 10.
また、インキ８の流動性を悪くしたり、紗２の上に形
成された乳剤３の厚みを厚くしない場合には、インキ８
が紗２の上に形成された乳剤３の裏にまわりやすいため
に、被印刷物の印刷１枚ないし数100枚に一度、紗２の
上に形成された乳剤３の裏にまわったインキ13を除去し
なければならないため、量産性が非常に悪くなるという
課題があった。When the fluidity of the ink 8 is not deteriorated or the thickness of the emulsion 3 formed on the gauze 2 is not increased, the ink 8
The ink 13 spread on the back of the emulsion 3 formed on the gauze 2 once every one to several hundred prints of the printing material so that the ink 13 can easily go around the back of the emulsion 3 formed on the gauze 2 Since it has to be removed, there has been a problem that mass productivity becomes very poor.
また、溶剤を含ませたウエス14で拭き取ることにより
紗２の上に形成された乳剤３の裏にまわったインキ13を
除去する場合には、溶剤を含ませたウエス14からゴミや
ほこりが発生し、紗２に付着して、次の印刷時にゴミや
ほこりが付着した部分だけインキ８が通過しないか、ま
たは、その付着したゴミやほこりに沿ってインキ８がに
じんでしまうという印刷不良を引き起こすという課題が
あった。When the ink 13 around the back of the emulsion 3 formed on the gauze 2 is removed by wiping with a cloth 14 containing a solvent, dust and dirt are generated from the cloth 14 containing the solvent. Then, the ink 8 adheres to the gauze 2 and causes a printing failure such that the ink 8 does not pass through only the portion where dust or dust adheres at the next printing, or the ink 8 bleeds along the adhered dust or dust. There was a problem that.
また、溶剤を含ませたウエス14で拭き取ることにより
紗２の上に形成された乳剤３の裏にまわったインキ13を
除去する場合には、溶剤を含ませたウエス14にしみこん
でいる溶剤がしみ出してきて、紗２上のインキ８と混ざ
り、インキ８に悪影響を及ぼすという課題があった。Further, when the ink 13 around the back of the emulsion 3 formed on the gauze 2 is removed by wiping with a cloth 14 containing a solvent, the solvent soaked in the cloth 14 containing the solvent is removed. There is a problem that the ink seeps out and mixes with the ink 8 on the gauze 2 to adversely affect the ink 8.
課題を解決するための手段 本発明は前記課題を解決するために、スクリーン印刷
を行う際に、版の乳剤の被印刷物側の表面に不必要なイ
ンキがまわることを防止するために、版の乳剤の被印刷
物側の表面に有機ケイ素化合物の皮膜を形成する方法と
したものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a method of printing a screen in order to prevent unnecessary ink from flowing to the surface of a printing plate on the side of a printing material when performing screen printing. This is a method in which a film of an organosilicon compound is formed on the surface of the emulsion on the side of a printing material.
作用 したがって本発明によれば、スクリーン印刷を行う際
に、版の乳剤の被印刷物側の表面に有機ケイ素化合物の
皮膜を形成しており、この有機ケイ素化合物はインキに
用いられている樹脂であるエポキシ樹脂やエポキシアク
リレート樹脂とのぬれ性が悪いために、版の乳剤の被印
刷物側の表面がインキをはじく。この結果、版の乳剤の
被印刷物側の表面に有機ケイ素化合物の皮膜を形成して
いない場合のように、インキが版の乳剤の被印刷物側に
裏まわりしにくいために、版の乳剤の被印刷物側に裏ま
わりしたインキを除去する回数を大幅に低減できる。ま
た、版の乳剤の被印刷物側に裏まわりしたインキを除去
する回数を大幅に低減できるために、量産性を大幅に向
上できる。また、溶剤を含ませたウエスを用いて版の乳
剤の被印刷物側に裏まわりしたインキを拭き取る場合の
ように、ウエスからゴミやほこりが発生する機会が大幅
に減少するため、これらによる印刷不良も大幅に減少す
る。According to the present invention, therefore, according to the present invention, when performing screen printing, a film of an organosilicon compound is formed on the surface of the emulsion of the plate on the substrate side, and this organosilicon compound is a resin used in the ink. Since the wettability with the epoxy resin or epoxy acrylate resin is poor, the surface of the plate emulsion on the printing material side repels the ink. As a result, as in the case where an organosilicon compound film is not formed on the surface of the plate emulsion on the substrate side, the ink is unlikely to flow back to the plate emulsion side of the plate emulsion. The number of times of removing the ink behind the printed material can be greatly reduced. In addition, since the number of times of removing the ink behind the printing plate side of the emulsion of the plate can be greatly reduced, mass productivity can be greatly improved. In addition, as in the case of wiping the ink behind the printing material side of the plate emulsion using a solvent-containing cloth, the chance of generating dust and dirt from the cloth is greatly reduced. Is also greatly reduced.
実施例 以下、本発明の一実施例のうち版の乳剤の被印刷物側
の表面に有機ケイ素化合物の皮膜を形成した場合を第１
図に基づいて説明する。EXAMPLES Hereinafter, a case where an organosilicon compound film was formed on the surface of the plate emulsion on the side of the printing material in one embodiment of the present invention will be described.
Description will be made based on the drawings.
第１図において、１は版枠、２は紗、３は紗２の上に
形成された乳剤、４は乳剤３の被印刷物側の表面に形成
された有機ケイ素化合物の皮膜、５はスキージ、６は被
印刷物、７は印刷機のステージ、８はインキである。In FIG. 1, 1 is a plate frame, 2 is a gauze, 3 is an emulsion formed on the gauze 2, 4 is a film of an organosilicon compound formed on the surface of the emulsion 3 on the side of a printing material, 5 is a squeegee, Reference numeral 6 denotes a substrate, reference numeral 7 denotes a stage of a printing press, and reference numeral 8 denotes ink.
第１図において、紗２の上に形成された乳剤３の被印
刷物側の表面に、例えばメチルポリシロキサンのような
有機ケイ素化合物の皮膜４を形成している。In FIG. 1, a coating 4 of an organosilicon compound such as methylpolysiloxane is formed on the surface of the emulsion 3 formed on the gauze 2 on the side of the printing material.
スクリーン印刷では、スキージ５をスキージングする
ことにより、紗２の上にインキ８を紗２を通して被印刷
物６上に押し出している。この時、紗２上のインキ８
は、スキージ５によって押し出されることにより、紗２
を通過した後、インキは広がろうとするため、紗２の上
に形成された乳剤３の被印刷物側の表面に形成された有
機ケイ素化合物の皮膜上に広がろうとする。ところが、
乳剤３の被印刷物側の表面に形成された有機ケイ素化合
物の皮膜４はインキ８をはじくために、インキ８は乳剤
３の被印刷物側の表面に形成された有機ケイ素化合物の
皮膜４上に広がることは難しい。その結果、インキ８は
乳剤３の被印刷物側に裏まわりしにくくなる。In screen printing, the squeegee 5 is squeezed to extrude the ink 8 onto the printing material 6 through the gauze 2. At this time, ink 8 on gauze 2
Is extruded by the squeegee 5,
After passing through, the ink tends to spread, and thus spreads on the coating of the organosilicon compound formed on the surface of the emulsion 3 formed on the gauze 2 on the side of the printing material. However,
Since the coating 4 of the organosilicon compound formed on the surface of the emulsion 3 on the substrate side repels the ink 8, the ink 8 spreads on the coating 4 of the organosilicon compound formed on the surface of the emulsion 3 on the substrate side. It is difficult. As a result, it becomes difficult for the ink 8 to go back to the printing material side of the emulsion 3.
この時、乳剤３の被印刷物側の表面に形成された有機
ケイ素化合物の皮膜４の厚みは0.5μｍから10μｍが適
当である。これは、乳剤３の被印刷物側の表面に形成さ
れた有機ケイ素化合物の皮膜４の厚みが0.5μｍ未満に
なると、印刷時に削り取られるために、すぐに効果がな
くなることによる。また反対に、乳剤３の被印刷物側に
形成された有機ケイ素化合物の皮膜４の厚みが10μｍ以
上になると、乳剤３と有機ケイ素化合物の皮膜４の合成
の厚みが厚くなり過ぎるために、印刷画像のかすれ等の
印刷不良の原因となる。At this time, the thickness of the organosilicon compound film 4 formed on the surface of the emulsion 3 on the side of the printing material is preferably 0.5 μm to 10 μm. This is because if the thickness of the organosilicon compound film 4 formed on the surface of the emulsion 3 on the side of the printing material is less than 0.5 μm, the effect is immediately lost because the film is scraped off during printing. Conversely, if the thickness of the organosilicon compound film 4 formed on the printing material side of the emulsion 3 is 10 μm or more, the combined thickness of the emulsion 3 and the organosilicon compound film 4 becomes too large, so that the printed image becomes too thick. It causes printing failure such as blurring.
この実施例により、紗２の上に形成された乳剤３の被
印刷物側にインキ８が裏まわりしにくくなったために、
紗２の上に形成された乳剤３の被印刷物側に裏まわりし
たインキ13を除去する回数が50％低減した。その結果、
量産性が30％向上できる。According to this embodiment, since the ink 8 was hard to be behind the printing material side of the emulsion 3 formed on the gauze 2,
The number of times of removing the ink 13 behind the printing material side of the emulsion 3 formed on the gauze 2 was reduced by 50%. as a result,
Mass productivity can be improved by 30%.
発明の効果 本発明は前記実施例より明らかなように、プリント配
線板のスクリーン印刷時に、紗の上に形成された乳剤の
被印刷物側の表面にインキをはじく能力を持たせること
により、スクリーン印刷時に乳剤の被印刷物側にインキ
が裏まわりすることを防止するため、生産性の大幅な向
上を図ることができるという効果が得られる。また、乳
剤の被印刷物側に裏まわりしたインキを除去する作業の
回数が大幅に低減でき、その結果、インキを除去する作
業により生じるゴミやほこりが原因である印刷不良を大
幅に低減できるという効果が得られる。Advantageous Effects of the Invention As is clear from the above embodiments, the present invention provides screen printing by imparting the ability to repel ink to the surface of the emulsion formed on the gauze on the side of the printing material during screen printing of the printed wiring board. In some cases, it is possible to prevent the ink from flowing back to the printing substrate side of the emulsion, so that the effect of significantly improving productivity can be obtained. In addition, the number of operations for removing the ink behind the printing material side of the emulsion can be greatly reduced, and as a result, printing defects caused by dust and dirt caused by the operation for removing the ink can be significantly reduced. Is obtained.
第１図は本発明のプリント配線板のスクリーン印刷機に
おいて、紗の上に形成された乳剤の被印刷物側に有機ケ
イ素化合物の皮膜を形成させた場合の断面図、第２図は
従来のプリント配線板のスクリーン印刷時に、インキの
粘度を上げた場合の断面図、第３図は従来のプリント配
線板のスクリーン印刷時に、紗の上に乳剤を厚く形成し
た場合の断面図、第４図は従来のプリント配線板のスク
リーン印刷時に、紗の上に形成された乳剤の被印刷物側
に裏まわりしたインキを除去するために、溶剤を含ませ
たウエスで拭き取る方法の斜視図、第５図は従来のプリ
ント配線板のスクリーン印刷時に、紗の上に形成された
乳剤の被印刷物側に裏まわりしたインキを除去するため
に、粘着層を形成したフィルム上にインキを転写する場
合の断面図、第６図は従来のプリント配線板のスクリー
ン印刷法を用いてソルダレジストを印刷した場合のプリ
ント配線板の正面図である。 １……版枠、２……紗、３……乳剤、４……乳剤の被印
刷物側の表面に形成された有機ケイ素化合物の皮膜、５
……スキージ、６……被印刷物、７……印刷機のステー
ジ、８……インキ。FIG. 1 is a cross-sectional view of a screen printing machine for a printed wiring board according to the present invention, in which a film of an organosilicon compound is formed on the side of a printed material of an emulsion formed on a gauze, and FIG. FIG. 3 is a cross-sectional view of the case where the viscosity of the ink is increased during screen printing of a wiring board, FIG. 3 is a cross-sectional view of the case where a thick emulsion is formed on a gauze during screen printing of a conventional printed wiring board, and FIG. FIG. 5 is a perspective view of a conventional method of wiping with a cloth soaked with a solvent in order to remove the ink behind the printing material side of the emulsion formed on the gauze during screen printing of a printed wiring board, and FIG. During screen printing of a conventional printed wiring board, a cross-sectional view of transferring ink onto a film on which an adhesive layer has been formed, in order to remove the ink behind the printing material side of the emulsion formed on the gauze, Sixth Is a front view of a printed wiring board when printing the solder resist by a screen printing method of a conventional printed wiring board. 1 ... plate frame, 2 ... gauze, 3 ... emulsion, 4 ... film of organosilicon compound formed on the surface of the emulsion on the side of the printing material, 5
... squeegee, 6 ... print material, 7 ... stage of printing press, 8 ... ink.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−9580（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B41M 1/12 B41F 15/00 - 15/46 B41N 1/24 ────────────────────────────────────────────────── (5) References JP-A-63-9580 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B41M 1/12 B41F 15/00-15 / 46 B41N 1/24
Claims (3)
剤の被印刷物側のみの表面に有機ケイ素化合物皮膜を形
成することを特徴とするスクリーン印刷用版。1. A screen printing plate comprising an emulsion formed on a gauze stretched on a plate frame, and an organosilicon compound film formed only on the surface of the emulsion on the side of a printing material.
μｍとした請求項１記載のスクリーン印刷用版。2. The thickness of the organosilicon compound film is from 0.5 to 10
The screen printing plate according to claim 1, which has a thickness of μm.
たプリント配線板の製造方法。3. A method for producing a printed wiring board using the screen printing plate according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02036556A JP3098753B2 (en) | 1990-02-16 | 1990-02-16 | Screen printing plate and method of manufacturing printed wiring board using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02036556A JP3098753B2 (en) | 1990-02-16 | 1990-02-16 | Screen printing plate and method of manufacturing printed wiring board using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03239582A JPH03239582A (en) | 1991-10-25 |
| JP3098753B2 true JP3098753B2 (en) | 2000-10-16 |
Family
ID=12473033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02036556A Expired - Fee Related JP3098753B2 (en) | 1990-02-16 | 1990-02-16 | Screen printing plate and method of manufacturing printed wiring board using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3098753B2 (en) |
-
1990
- 1990-02-16 JP JP02036556A patent/JP3098753B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03239582A (en) | 1991-10-25 |
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