JPH01276534A - Method of forming charge protection film on outer surface of cathode ray tube - Google Patents
Method of forming charge protection film on outer surface of cathode ray tubeInfo
- Publication number
- JPH01276534A JPH01276534A JP10400488A JP10400488A JPH01276534A JP H01276534 A JPH01276534 A JP H01276534A JP 10400488 A JP10400488 A JP 10400488A JP 10400488 A JP10400488 A JP 10400488A JP H01276534 A JPH01276534 A JP H01276534A
- Authority
- JP
- Japan
- Prior art keywords
- face
- cathode ray
- ray tube
- charge protection
- solution
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- 239000011734 sodium Substances 0.000 claims abstract description 8
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 abstract 2
- 239000010408 film Substances 0.000 description 25
- 239000003973 paint Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- GHYOCDFICYLMRF-UTIIJYGPSA-N (2S,3R)-N-[(2S)-3-(cyclopenten-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[[(2S)-2-[(2-morpholin-4-ylacetyl)amino]propanoyl]amino]propanamide Chemical compound C1(=CCCC1)C[C@@H](C(=O)[C@@]1(OC1)C)NC([C@H]([C@@H](C1=CC=C(C=C1)OC)O)NC([C@H](C)NC(CN1CCOCC1)=O)=O)=O GHYOCDFICYLMRF-UTIIJYGPSA-N 0.000 description 1
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 150000001218 Thorium Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229940125797 compound 12 Drugs 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- -1 lj [ IQ Soda Chemical compound 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
「発明の目的］
（産業上の利用分野）
この発明は、カラー受像管などの陰極線管の外表面に帯
電防止膜を形成する方法に関する。DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for forming an antistatic film on the outer surface of a cathode ray tube such as a color picture tube.
（従来の技術）
一般に、蛍光面に高電圧が印加される陰極線管は、その
蛍光面基体であるガラス製フェース部外表面のポテンシ
ャルが蛍光面のそれに近い値まで上昇し帯電する。その
ため、その帯電によりフェース部外表面に埃などが付着
したり、ざらにはフェース部外表面に人体が接触したと
ぎ、電撃（感電）を受けるなどの問題がおる。通常カラ
ー受像管は、パネルといわれているフェース部内面に形
成された蛍光面に２０〜３０ｋＶ程度の高い陽極電圧が
印加されるので、その代表的な一例である。また、上記
帯電とは別に、フェース部外表面は、外光を鏡面反射し
やすく、これが視聴者の視覚に入ると、蛍光面上の画像
をみにくくするという問題もおる。(Prior Art) Generally, in a cathode ray tube in which a high voltage is applied to the phosphor screen, the potential of the outer surface of the glass face, which is the base of the phosphor screen, increases to a value close to that of the phosphor screen, and the cathode ray tube becomes electrically charged. Therefore, there are problems such as dust and the like adhering to the outer surface of the face due to the electrification, and furthermore, when a human body comes into contact with the outer surface of the face, it may receive an electric shock. A color picture tube is a typical example, since a high anode voltage of about 20 to 30 kV is applied to a phosphor screen formed on the inner surface of a face portion called a panel. In addition to the above-mentioned charging, the outer surface of the face tends to reflect external light specularly, and when this enters the viewer's vision, the image on the phosphor screen becomes difficult to see.
上記理由により、従来よりそのフェース部外表面に均一
微細な凹凸を有する帯電防止膜を形成して、これをアー
ス接続したものがある。For the above reasons, there have conventionally been devices in which an antistatic film having uniform fine irregularities is formed on the outer surface of the face portion and this is connected to ground.
従来、この帯電防止膜の形成は、完成した陰極線管のフ
ェース部外表面を、弗酸必るいは弗化アンモンの１〜１
０％溶液を使用してローラ必るいは超音波洗浄したのち
、市水、純水などでリンス洗浄し、さらにエアブロ−な
どで水切りして乾燥する。そしてその後、たとえばエチ
ルシリケートを主成分とする導電塗料をスプレィなどに
より塗布し、かつ陰極線管を高速回転して均一な被膜と
し、これを加熱炉で焼成して形成している。Conventionally, this antistatic film was formed by coating the outer surface of the face of the completed cathode ray tube with hydrofluoric acid or ammonium fluoride.
After cleaning the roller using a 0% solution or using ultrasonic waves, rinsing with city water, pure water, etc., and then draining with an air blower or the like and drying. Thereafter, a conductive paint containing, for example, ethyl silicate as a main component is applied by spraying, a cathode ray tube is rotated at high speed to form a uniform coating, and the coating is fired in a heating furnace.
しかし、上記方法により帯電防止膜の形成すると、フェ
ース部外表面に対する導電塗料の馴染みが悪く、導電塗
料を塗イｌＴ してから乾燥するまでの間に、第２図に
示すように局部的に被膜がはじかれて帯電防止膜（１）
が形成されない部分（２）ができ、フェース部（３）の
外観品位が損なわれるばかりでなく、その帯電防止膜（
１）が形成されない部分（２）に埃などが吸着されて汚
れが目立つようになり、画像品位を劣化するようになる
。However, when an antistatic film is formed using the above method, the conductive paint does not adhere well to the outer surface of the face, and between the time the conductive paint is applied and the time it dries, localized areas may be formed as shown in Figure 2. The film is repelled and becomes an antistatic film (1)
This results in a portion (2) where the antistatic film (
Dust and the like are attracted to the portion (2) where 1) is not formed, making the dirt noticeable and deteriorating the image quality.
（発明が解決しようとする課題）
上記のように従来の帯電防止膜形成方法では、フェース
部外表面に対する導電塗料の馴染みが悪く、導電塗料塗
布後ぞの被膜を乾燥するまでの間に局部的に被膜がはじ
かれて帯電防止膜が形成されない部分ができ、フェース
部の外観品位を損うばかりでなく、その帯電防止膜が形
成されない部分に埃などが吸着されて汚れが目立つよう
になり、画像品位を劣化するという問題がある。(Problems to be Solved by the Invention) As described above, in the conventional antistatic film forming method, the conductive paint does not adhere well to the outer surface of the face, and the conductive paint does not adhere locally until the film dries after the conductive paint is applied. The coating is repelled and there are areas where the antistatic film is not formed, which not only impairs the appearance quality of the face, but also causes dirt to become noticeable as dust is attracted to the areas where the antistatic film is not formed. There is a problem that image quality deteriorates.
この発明は、上記問題点を解決するためになされたもの
であり、陰極線管のフェース部外表面に均一な帯電防止
膜を形成する方法を１ワることを目的とする。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to improve the method of forming a uniform antistatic film on the outer surface of the face of a cathode ray tube.
［発明の構成］
（課題を解決するための手段）
陰極線管の外表面に帯電防止膜を形成する帯電防止膜形
成方法において、陰極線管のフェース部外表面を洗浄し
たのち、そのフェース部外表面にナトリウムまたはナト
リウム塩を含む少なくとも１種類のアルカリ化合物の溶
液を塗布し、その後、このアルリ化合物の溶液の塗布さ
れたフェース部外表面に帯電防止液を塗布する方法で帯
電防止膜を形成するようにした。[Structure of the Invention] (Means for Solving the Problems) In an antistatic film forming method for forming an antistatic film on the outer surface of a cathode ray tube, after cleaning the outer surface of the face of the cathode ray tube, An antistatic film is formed by applying a solution of at least one kind of alkaline compound containing sodium or a sodium salt to the face, and then applying an antistatic liquid to the outer surface of the face to which the solution of the alkaline compound has been applied. I made it.
（作 用）
上記のように、洗浄後、ナトリウムまたはナトリウム塩
を含む少なくとも１種類のアルカリ化合物の溶液を塗布
し、その上に帯電防止液を塗イ「すると、フェース部外
表面に対する帯電防止液の馴染みがよくなり、従来のよ
うに帯電防止液の被膜が局部的にはじかれることがなく
、フェース部外表面全面に均一な帯電防止膜を容易に形
成することができる。(Function) As mentioned above, after cleaning, apply a solution of at least one type of alkaline compound containing sodium or sodium salt, and then apply an antistatic liquid on top of it. The antistatic liquid film is not locally repelled as in the conventional case, and a uniform antistatic film can be easily formed on the entire outer surface of the face.
（実施例）
以下、図面を参照してこの発明の一実施例であるカラー
受像管のパネル外表面に帯電防止膜を形成する方法につ
いて説明覆る。(Example) Hereinafter, a method for forming an antistatic film on the outer surface of a panel of a color picture tube, which is an example of the present invention, will be explained with reference to the drawings.
第１図に示すように、まず所定の工程を経て完成された
カラー受像管のパネル（１０）外表面を、弗酸あるいは
弗化アンモンの１〜１０％溶液を使用して、ローラ、ス
プレィあるいは超音波洗浄などの機械的あるいは物理的
手段により洗浄したのち、市水や純水でリンス洗浄する
。ついで、その洗浄されたパネル（１０）外表面に、ナ
トリウムまたはナトリウム塩を含む少なくとも１種類以
上のアルカリ化合物の溶液を塗布し、清浄なガーゼなど
で空拭きしてアルカリ化合物の薄膜（１１）を形成する
。As shown in Fig. 1, first, the outer surface of the color picture tube panel (10), which has been completed through a prescribed process, is coated with a roller, spray, or After cleaning by mechanical or physical means such as ultrasonic cleaning, rinse with city water or pure water. Next, a solution of at least one alkaline compound containing sodium or sodium salt is applied to the outer surface of the cleaned panel (10), and a thin film (11) of the alkaline compound is formed by wiping with clean gauze or the like. Form.
上記アルカリ化合物としては、クエン酸ソーダ、ｌｊ［
ＩＱソーダ、炭酸ソーダ、リン酸ソーダ、ヘンケル社製
シリロン−ｌ−（５ｉｌｉｒｏｎ−Ｌ） （商品名）
、苛性ソーダなどが使用され、その１種類以上の溶液を
順次各別に塗布するか、または２種類以上の混合溶液を
塗Ｖ５することでおこなわれる。Examples of the alkali compounds include sodium citrate, lj [
IQ Soda, Soda Carbonate, Sodium Phosphate, Henkel Siliron-L (5iliron-L) (Product Name)
, caustic soda, etc. are used, and it is carried out by applying one or more of these solutions separately, or by applying a mixed solution of two or more of them.
つぎに、上記アルカリ化合物の溶液で処理されたパネル
（１０）外表面に、たとえばエチルシリケートを主成分
とする導電塗料をスプレィなどの手段により塗布し、か
つカラー受像管をその管軸を中心にして高速回転して、
パネル（１０）外表面に導電塗料の均一な被膜（１２）
を形成する。その後、この被膜（１２）の形成されたカ
ラー受像管を加熱炉に入れて焼成し、帯電防止膜とする
。Next, a conductive paint containing, for example, ethyl silicate as a main component is applied to the outer surface of the panel (10) treated with the solution of the alkali compound by means of spraying or the like, and a color picture tube is placed around its tube axis. and rotate at high speed,
Panel (10) A uniform coating of conductive paint on the outer surface (12)
form. Thereafter, the color picture tube on which the coating (12) has been formed is placed in a heating furnace and fired to form an antistatic coating.
ところで、上記方法により帯電防止膜を形成すると、導
電塗料塗布前に塗イロされたアルカリ化合物の溶液中の
ナトリウムまたはナトリウム塩がパネル（１０）外表面
上に残存し、その後塗布される導電塗料のパネル（１０
）外表面に対する馴染みを良好にする。したがって、従
来は、導電塗料がはじかれて局部的に帯電防止膜が形成
されないものが数１０％発生したが、これを完全に防止
して、均一な帯電防止膜を容易に形成することができる
ようになった。By the way, when an antistatic film is formed by the above method, sodium or sodium salt in the solution of the alkaline compound applied before applying the conductive paint remains on the outer surface of the panel (10), and the conductive paint applied afterwards Panel (10
) Good conformability to the outer surface. Therefore, conventionally, several tens of percent of cases occurred where the conductive paint was repelled and the antistatic film was not formed locally, but this can be completely prevented and a uniform antistatic film can be easily formed. It became so.
［発明の効果］
陰極線管外表面を洗浄したのち、そのフェース部外表面
にナトリウムまたはすトリウム塩を含む少なくとも１種
類のアルカリ化合物の溶液を塗布し、その後、帯電防止
液を塗布すると、そのフェース部外表面に上記溶液中の
ナトリウムまたはナトリウム塩が残存し、フェース部外
表面に対する帯電防止液の馴染みがよくなり、従来のよ
うに帯電防止液の被膜が局部的にはじかれることがなく
、フェース部外表面全面に均一な帯電防止膜を容易に形
成することができる。[Effects of the Invention] After cleaning the outer surface of the cathode ray tube, applying a solution of at least one kind of alkaline compound containing sodium or thorium salt to the outer surface of the face, and then applying an antistatic liquid to the outer surface of the face. The sodium or sodium salt in the solution remains on the external surface of the face, and the antistatic liquid becomes more compatible with the external surface of the face. A uniform antistatic film can be easily formed over the entire external surface.
第１図はこの発明の一実施例であるカラー受像管外表面
の帯電防止膜形成方法を説明するための図、第２図（Ａ
）および（８）図はそれぞれ従来の帯電防止膜形成力゛
法により形成された帯電防止膜の問題点を示す陰極線管
の正面図およびそのフェース部側からみた平面図である
。
１０・・・フェース部
１１・・・アルカリ化合物の薄膜
１２・・・導電塗料の被膜
代理人 弁理士 大 胡 典 夫FIG. 1 is a diagram for explaining a method for forming an antistatic film on the outer surface of a color picture tube, which is an embodiment of the present invention, and FIG.
) and (8) are a front view of a cathode ray tube and a plan view viewed from the face side of the cathode ray tube, respectively, showing the problems of the antistatic film formed by the conventional antistatic film forming method. 10...Face portion 11...Thin film of alkaline compound 12...Coating agent of conductive paint Patent attorney Norio Ogo
Claims (1)
浄されたフェース部外表面にナトリウムまたはナトリウ
ム塩を含む少なくとも１種類のアルカリ化合物の溶液を
塗布する工程と、上記アルカリ化合物の溶液の塗布され
たフェース部外表面に帯電防止液を塗布する工程とを備
えることを特徴とする陰極線管外表面の帯電防止膜形成
方法。a step of cleaning the outer surface of the face of the cathode ray tube; a step of applying a solution of at least one kind of alkaline compound containing sodium or a sodium salt to the cleaned outer surface of the face; and a step of applying the solution of the alkali compound to the outer surface of the face of the cathode ray tube. A method for forming an antistatic film on the outer surface of a cathode ray tube, comprising the step of applying an antistatic liquid to the outer surface of the face of the cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10400488A JPH01276534A (en) | 1988-04-28 | 1988-04-28 | Method of forming charge protection film on outer surface of cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10400488A JPH01276534A (en) | 1988-04-28 | 1988-04-28 | Method of forming charge protection film on outer surface of cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01276534A true JPH01276534A (en) | 1989-11-07 |
Family
ID=14369126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10400488A Pending JPH01276534A (en) | 1988-04-28 | 1988-04-28 | Method of forming charge protection film on outer surface of cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01276534A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06260114A (en) * | 1992-06-09 | 1994-09-16 | Samsung Display Devices Co Ltd | Coating composition and cathode-ray tube using this |
| US5660876A (en) * | 1991-06-07 | 1997-08-26 | Sony Corporation | Method of manufacturing cathode ray tube with a nonglare multi-layered film |
-
1988
- 1988-04-28 JP JP10400488A patent/JPH01276534A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5660876A (en) * | 1991-06-07 | 1997-08-26 | Sony Corporation | Method of manufacturing cathode ray tube with a nonglare multi-layered film |
| US5863596A (en) * | 1991-06-07 | 1999-01-26 | Sony Corporation | Method of making a cathode ray tube with a nonglare multi-layered film |
| JPH06260114A (en) * | 1992-06-09 | 1994-09-16 | Samsung Display Devices Co Ltd | Coating composition and cathode-ray tube using this |
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