JPS6071670A - Filming emulsion for cathode ray tube - Google Patents
Filming emulsion for cathode ray tubeInfo
- Publication number
- JPS6071670A JPS6071670A JP17790183A JP17790183A JPS6071670A JP S6071670 A JPS6071670 A JP S6071670A JP 17790183 A JP17790183 A JP 17790183A JP 17790183 A JP17790183 A JP 17790183A JP S6071670 A JPS6071670 A JP S6071670A
- Authority
- JP
- Japan
- Prior art keywords
- emulsion
- methacrylate
- film
- aluminum
- cathode ray
- 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.)
- Granted
Links
Landscapes
- Paints Or Removers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Physical Vapour Deposition (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、陰極線管、例えばカラー受像管の製造工程に
おいて、パネル内面にけい光体層を形成した後、金属反
射膜を形成する際の下地として使用される有機フィルム
の形成に用いるフィルミング乳剤の組成に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for manufacturing a cathode ray tube, for example, a color picture tube, in which a phosphor layer is formed on the inner surface of the panel, and then a metal reflective film is formed on the substrate. The present invention relates to the composition of a filming emulsion used to form an organic film used as an organic film.
一般にカラー受像管のけい光面を形成する場合には、パ
ネル内面に緑、青、赤の３色のけい光体からなるけい光
体層を形成した後、アルミニウムを蒸着して反射膜を形
成するが、この反射膜を平滑で反射率の高いものとする
ために、アルミニラをアクリル樹脂フィルムで被覆して
平滑にする工程であシ、その方法にはラッカー法とエマ
ルジョン法とがある。本発明はこのエマルジョン法に関
する。Generally, when forming the phosphor surface of a color picture tube, a phosphor layer consisting of three color phosphors of green, blue, and red is formed on the inner surface of the panel, and then aluminum is vapor-deposited to form a reflective film. However, in order to make this reflective film smooth and have a high reflectance, there is a step of covering the aluminum oxide with an acrylic resin film to make it smooth, and there are two methods for this process: lacquer method and emulsion method. The present invention relates to this emulsion method.
一般に、従来エマルジョン法で使用されているアクリル
エマルジョンは、米国Ｒｏｈｍ ＆ ）Ｉａｓｓ社のＲ
ｏｐｈｌｅｘ Ｂ −７４ｈるいは日本アクリル社製プ
ライマルＢ−７４であシ、その内容はいずれもメタクリ
ル酸メチル、アクリル酸メチルおよびアクリル酸を乳化
重合させたものである。Generally, the acrylic emulsion conventionally used in the emulsion method is R.
ophlex B-74h or Primal B-74 manufactured by Nippon Acrylic Co., Ltd., both of which contain emulsion polymerization of methyl methacrylate, methyl acrylate, and acrylic acid.
ところで、フィルミング工程で最も重要なことの１つは
、アルミニウム蒸着膜の反射率を高めてけい光面の明る
さを向上させるために、形成するフィルムを平滑なもの
にすることであるが、そのためにはフィルムを厚くする
必要がある。しかし、このようにフィルムを厚くして平
滑にすればする程、アルミニウム蒸着後のベーキング工
程でアクリル樹脂等の分解ガスによシ第１図に示すよう
なアルミニウム膜のふくれや剥離が起こりやすくなる。By the way, one of the most important things in the filming process is to make the formed film smooth in order to increase the reflectance of the aluminum vapor-deposited film and improve the brightness of the fluorescent surface. For this purpose, it is necessary to make the film thicker. However, the thicker and smoother the film is, the more likely it is that the aluminum film will blister or peel as shown in Figure 1 due to decomposed gases from acrylic resin and other substances during the baking process after aluminum evaporation. .
第１図において、１はフェースパネル、２ａ。In FIG. 1, 1 is a face panel, 2a.
２ｂ、２Ｃはそれぞれ緑、青、赤のけい光体からなる絵
素、３ａはアルミニウムｆＪｋｓ３ｂがアルミニウムふ
くれである。2b and 2C are picture elements consisting of green, blue, and red phosphors, respectively; 3a is an aluminum fJks; 3b is an aluminum bulge.
このため、従来一般には第２図（ａ）（正面図）および
（ｂ）（拡大断面図）に示すようにけい光体絵素の周辺
のフィルムにき裂を作り、この部分に生ずるアルミニウ
ム膜のき裂から分解ガスを逃がすようにしてふくれ・剥
離を防止する対策がとられている。この方法をとる場合
の代表的なフィルミング液の組成としては次のようなも
のが公知である。For this reason, conventionally, as shown in Figure 2 (a) (front view) and (b) (enlarged sectional view), cracks are created in the film around the phosphor pixel, and the aluminum film is formed in this area. Measures are being taken to prevent blistering and peeling by allowing decomposition gas to escape through the cracks. The following compositions of typical filming liquids for this method are known.
しかしながら、この方式には次のような難点がある。す
なわち、上述した″ようにフィルミング液が多８Ｍの材
料を混合しなければならないこと、形成されるフィルム
が硬く、けい光体絵素にき裂を生じさせてけい光面の明
るさを低下させやすいことである。However, this method has the following drawbacks. That is, as mentioned above, the filming liquid must be made of a mixture of 8M materials, and the formed film is hard, causing cracks in the phosphor pixels and reducing the brightness of the phosphor surface. This is easy to do.
本発明はこのような事情に鑑みてなされたもので、その
目的は、簡単な組成で、しかも柔らかでけい光体絵素を
傷つけることがなく、アルミふくれを有効に防止するこ
とが可能なフィルムが形成できる陰極線管用フィルミン
ク乳剤を提供することにある。The present invention was made in view of these circumstances, and its purpose is to provide a film that has a simple composition, is soft, does not damage phosphor pixels, and can effectively prevent aluminum blisters. An object of the present invention is to provide a Filmink emulsion for cathode ray tubes that can be formed.
このような目的を達成するために、本発明は、乳化重合
するアクリル樹脂の共重合させる組成として、メタクリ
ル酸メチル、アクリル酸エチルに加えて、熱分解温度が
低く、形成されるフィルムが柔かく伸びの良いｎ−メタ
クリル酸ブチルを用いたものである。以下、実施例を用
いて本発明の詳細な説明する。In order to achieve such an object, the present invention uses methyl methacrylate and ethyl acrylate as a copolymerization composition of an acrylic resin to be emulsion polymerized. It uses n-butyl methacrylate, which has good properties. Hereinafter, the present invention will be explained in detail using Examples.
アクリルエマルジョンとして次のような共重合組成を有
するものを用いる。An acrylic emulsion having the following copolymer composition is used.
上記組成は、フィルミンク乳剤を構成するエマルジョン
としての重要な特性であるフィルム形成最低温度が、従
来一般に使用されているアクリルエマルジョンと同等の
４２℃となるように設定したものである。The above composition was set so that the minimum temperature for film formation, which is an important characteristic of the emulsion constituting the Filmink emulsion, was 42° C., which is the same as that of conventionally commonly used acrylic emulsions.
ここモ得られるアクリルエマルジョンを使用することに
よシ、従来一般に使用されているように多種類の材料を
混合したフィルミング液組成にしなくても、形成される
フィルムの熱分解速度が小さく、ベーキング時に発生す
る単位時間当シの熱分解ガス量が少ないためにアルミニ
ウムふくれを抑えることができる。本実施例では次のよ
うな組成を用いて良好な結果を得ることができた。By using the acrylic emulsion obtained here, it is possible to reduce the thermal decomposition rate of the formed film without having to create a filming liquid composition that is a mixture of many types of materials as is commonly used in the past. Since the amount of thermal decomposition gas generated per unit time is small, aluminum blistering can be suppressed. In this example, good results were obtained using the following composition.
次に、上記組成においてアクリルエマルジョンの固形分
としての樹脂の濃度を変えて、アルミニウムふくれの発
生頻度と画面の明るさを調べたところ、第３図中（イ）
に示すよりな結果となり、同図中（ロ）に示した従来の
フィルミング液を用いた場合と同等以上の効果が得られ
ることが確認された。Next, we investigated the frequency of occurrence of aluminum blisters and the brightness of the screen by changing the concentration of resin as a solid content of the acrylic emulsion in the above composition.
The results were as shown in (b) in the figure, and it was confirmed that the same or better effect could be obtained when using the conventional filming liquid shown in (b) in the same figure.
なお、実態がアルミニウムふく、ｌｔ発生レベル、破線
が画面の明るさを示す。Note that the actual condition is aluminum, the lt generation level, and the broken line indicates the brightness of the screen.
以上説明したように、本発明によればアクリルエマルジ
ョンとしてメタクリル酸メチル、アクリル酸エチルおよ
びｎ−メタクリル酸ブチルを共重合させたものを用いた
ことにより、ベーキング時に発生する単位時間当りのフ
ィルムの熱分解ガス量を少なくすることができるため、
従来のように多種類の材料を用いなくてもアルミニウム
ふくれを有効に防止できる。また、形成されるフィルム
が柔らかで、けい光体絵素を傷つけることもない。As explained above, according to the present invention, by using a copolymer of methyl methacrylate, ethyl acrylate, and n-butyl methacrylate as an acrylic emulsion, the heat of the film generated per unit time during baking is reduced. Since the amount of decomposition gas can be reduced,
Aluminum blisters can be effectively prevented without using a variety of materials as in the past. Furthermore, the film formed is soft and does not damage the phosphor pixels.
第１図は従来のフィルミング乳剤を用いてフィルミング
を行なった場合のアルミニウムふくれの発生状態を示す
断面図、第２図（ａ） 、 （ｂ）は従来用いられてい
るアルミニウムふくれの防止対策を説明するための図、
第３図は本発明の効果を従来と対比して示したグラフで
ある。Figure 1 is a cross-sectional view showing how aluminum blister occurs when filming is performed using a conventional filming emulsion, and Figures 2 (a) and (b) are conventional measures to prevent aluminum blister. Diagram to explain,
FIG. 3 is a graph showing the effects of the present invention in comparison with the conventional technology.
Claims (1)
クリル酸ブチルを共重合させてなるアクリルエマルジョ
ンを主成分とする陰極線管用フィルミンク乳剤。A Filmink emulsion for cathode ray tubes whose main component is an acrylic emulsion obtained by copolymerizing methyl methacrylate, ethyl acrylate, and n-butyl methacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17790183A JPS6071670A (en) | 1983-09-28 | 1983-09-28 | Filming emulsion for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17790183A JPS6071670A (en) | 1983-09-28 | 1983-09-28 | Filming emulsion for cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6071670A true JPS6071670A (en) | 1985-04-23 |
| JPS6251987B2 JPS6251987B2 (en) | 1987-11-02 |
Family
ID=16039039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17790183A Granted JPS6071670A (en) | 1983-09-28 | 1983-09-28 | Filming emulsion for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6071670A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0735008A2 (en) * | 1995-03-31 | 1996-10-02 | ELF ATOCHEM ITALIA S.r.l. | Emulsions based on acrylic polymers |
| EP0735561A2 (en) * | 1995-03-31 | 1996-10-02 | ELF ATOCHEM ITALIA S.r.l. | Emulsions based on acrylic polymers |
| WO2019082888A1 (en) * | 2017-10-25 | 2019-05-02 | 株式会社パイロットコーポレーション | Ink composition for water-based ballpoint pen, and water-based ballpoint pen including same |
-
1983
- 1983-09-28 JP JP17790183A patent/JPS6071670A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0735008A2 (en) * | 1995-03-31 | 1996-10-02 | ELF ATOCHEM ITALIA S.r.l. | Emulsions based on acrylic polymers |
| EP0735561A2 (en) * | 1995-03-31 | 1996-10-02 | ELF ATOCHEM ITALIA S.r.l. | Emulsions based on acrylic polymers |
| EP0735008A3 (en) * | 1995-03-31 | 1997-04-16 | Atochem Elf Italia | Emulsions based on acrylic polymers |
| EP0735561A3 (en) * | 1995-03-31 | 1997-04-16 | Atochem Elf Italia | Emulsions based on acrylic polymers |
| US5888581A (en) * | 1995-03-31 | 1999-03-30 | Elf Atochem Italia S.R.L. | Emulsions based on acrylic polymers |
| US6060520A (en) * | 1995-03-31 | 2000-05-09 | Elf Atochem S.R.L. | Emulsions based on acrylic polymers |
| WO2019082888A1 (en) * | 2017-10-25 | 2019-05-02 | 株式会社パイロットコーポレーション | Ink composition for water-based ballpoint pen, and water-based ballpoint pen including same |
| JPWO2019082888A1 (en) * | 2017-10-25 | 2020-11-19 | 株式会社パイロットコーポレーション | Ink composition for water-based ballpoint pen and water-based ballpoint pen using it |
| US11560490B2 (en) | 2017-10-25 | 2023-01-24 | Kabushiki Kaisha Pilot Corporation | Water-based ink composition for ballpoint pen and water-based ballpoint pen using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6251987B2 (en) | 1987-11-02 |
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