JPH0332771A - Production of antistatic cathode-ray tube - Google Patents
Production of antistatic cathode-ray tubeInfo
- Publication number
- JPH0332771A JPH0332771A JP16906589A JP16906589A JPH0332771A JP H0332771 A JPH0332771 A JP H0332771A JP 16906589 A JP16906589 A JP 16906589A JP 16906589 A JP16906589 A JP 16906589A JP H0332771 A JPH0332771 A JP H0332771A
- Authority
- JP
- Japan
- Prior art keywords
- antistatic
- ray tube
- antistatic agent
- film
- soln
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000002216 antistatic agent Substances 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 19
- 239000002904 solvent Substances 0.000 claims abstract description 18
- 238000009835 boiling Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 abstract description 7
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 abstract description 6
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 abstract description 4
- 229940035429 isobutyl alcohol Drugs 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 20
- 235000019441 ethanol Nutrition 0.000 description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 239000011550 stock solution Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (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、陰極線管の外表面に帯電防止膜を形成して
なる帯電防止形陰極線管の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for manufacturing an antistatic cathode ray tube in which an antistatic film is formed on the outer surface of the cathode ray tube.
（従来の技術）
一般に、受像管などの陰極線管は、明るくかつコントラ
ストの良好な画像を表示するために、フェース内面に形
成された蛍光体スクリーンに高電圧が印加される。その
ため、この高電圧印加陰極線管では、動作開始初期に上
記蛍光体スクリーンの形成されている絶縁ガラスからな
るフェース外表面が帯電し、特にフェース外表面を露出
させているブツシュスル一方式の受像機では、その帯電
のためにフェース外表面に塵埃が付着するし、また、そ
の外表面に触れた場合に電撃を受けることがある。した
がって、このような陰極線管については、その帯電を防
止するために、従来よりフェース外表面に帯電防止膜を
形成することがおこなわれている。(Prior Art) Generally, in a cathode ray tube such as a picture tube, a high voltage is applied to a phosphor screen formed on the inner surface of the face in order to display a bright image with good contrast. Therefore, in this high-voltage cathode ray tube, the outer surface of the face made of insulating glass on which the phosphor screen is formed becomes electrically charged at the beginning of operation, especially in a one-sided type receiver with an exposed outer face. Due to the electrical charge, dust adheres to the outer surface of the face, and if you touch the outer surface, you may receive an electric shock. Therefore, in order to prevent charging of such cathode ray tubes, an antistatic film has been conventionally formed on the outer surface of the face of the cathode ray tube.
この帯電防止膜の形成方法として、エチルシリケートの
エチルアルコール溶液を塗布し乾燥焼成して、Ｓ１０内
に残存するシラノール基（Ｓｔ・・・ＯＨ）の吸湿に基
づく導電性により帯電防止膜としたものがある。As a method for forming this antistatic film, an ethyl alcohol solution of ethyl silicate is applied, dried and baked, and an antistatic film is formed due to the conductivity based on the moisture absorption of the silanol groups (St...OH) remaining in S10. There is.
しかし、このエチルシリケートのアルコール溶液を帯電
防止剤溶液とする帯電防止膜形成方法は、帯電防止剤溶
液塗布後の乾燥焼成により特性が大きく変化するという
問題がある。すなわち、一定の温度条件で乾燥焼成する
場合に、帯電防止剤溶液の溶媒に低沸点アルコールを用
いて乾燥速度を速めると、帯電防止剤溶液を均一に塗布
しても乾燥むらが生じ、また膜の抵抗値が高くなる。逆
に、溶媒に高沸点アルコールを用いて乾燥速度を遅くす
ると、膜が白濁しやすく、かつ膜硬度が低くなるなどの
問題が発生する。However, this method of forming an antistatic film using an alcoholic solution of ethyl silicate as the antistatic agent solution has a problem in that the characteristics change significantly due to drying and baking after application of the antistatic agent solution. In other words, when drying and baking under constant temperature conditions, if a low boiling point alcohol is used as the solvent for the antistatic agent solution to speed up the drying speed, uneven drying will occur even if the antistatic agent solution is applied uniformly, and the film will dry unevenly. resistance value increases. On the other hand, if a high boiling point alcohol is used as a solvent to slow down the drying rate, problems such as the film tends to become cloudy and the film hardness decreases occur.
（発明が解決しようとする課題）
上記のように、従来より帯電防止形陰極線管の製造方法
として、エチルシリケートのアルコール溶液を帯電防止
剤溶液としてフェース外表面に塗布し、これを乾燥焼成
して帯電防止膜を形成する方法がある。しかし、この帯
電防止膜形成方法は、陰極線管製造工程のインデックス
などにより規制された所定の乾燥温度条件のもとで形成
する場合、たとえば乾燥速度を速めるために、帯電防止
剤溶液の溶媒として低沸点アルコールを用いると、乾燥
むらや膜抵抗値が高くなり、逆に、高沸点アルコールを
用いると、膜の白濁や膜硬度の低下などが発生する。つ
まり、エチルシリケートのアルコール溶液を帯電防止剤
溶液として、所定の乾燥温度条件のもとで膜抵抗値や膜
強度などの膜特性、外観品位、長期信頼性などを満足す
る帯電防止膜を形成するためには、乾燥速度を適正に制
御することが必要である。(Problems to be Solved by the Invention) As mentioned above, as a conventional method for manufacturing an antistatic cathode ray tube, an alcohol solution of ethyl silicate is applied as an antistatic agent solution to the outer surface of the face, and this is dried and fired. There is a method of forming an antistatic film. However, when forming an antistatic film under predetermined drying temperature conditions regulated by the index of the cathode ray tube manufacturing process, for example, in order to speed up the drying rate, it is necessary to use a low If a boiling point alcohol is used, drying becomes uneven and the film resistance value becomes high. Conversely, if a high boiling point alcohol is used, the film becomes cloudy and the film hardness decreases. In other words, using an alcohol solution of ethyl silicate as an antistatic agent solution, an antistatic film is formed that satisfies film properties such as film resistance and film strength, appearance quality, and long-term reliability under specified drying temperature conditions. In order to achieve this, it is necessary to appropriately control the drying rate.
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、陰極線管の帯電防止膜として要求される膜特性
を満足する帯電防止膜を容易に形威し得るようにするこ
とを目的とする。This invention was made to solve the above problems, and its purpose is to easily produce an antistatic film that satisfies the film characteristics required for an antistatic film for cathode ray tubes. do.
［発明の構成］
（課題を解決するための手段）
帯電防止形陰極線管の製造方法において、陰極線管の外
表面に塗布する帯電防止剤溶液に、この帯電防止剤溶液
の主溶媒とは沸点の異なる２種類以上の溶媒を混合して
陰極線管の外表面に塗布するようにした。[Structure of the Invention] (Means for Solving the Problems) In a method for manufacturing an antistatic cathode ray tube, an antistatic agent solution coated on the outer surface of the cathode ray tube has a main solvent having a boiling point. Two or more different solvents are mixed and applied to the outer surface of the cathode ray tube.
（作 用）
上記のように、帯電防止剤溶液にその主溶媒とは沸点の
異なる２種類以上の溶媒を混合して帯電防止剤溶液とす
ると、その添加する溶媒によって、陰極線管外表面に塗
布された帯電防止剤溶液塗布膜の乾燥速度を調整するこ
とができ、所要の特性を備える帯電防止膜とすることが
できる。(Function) As mentioned above, when an antistatic agent solution is mixed with two or more solvents that have different boiling points from the main solvent, the antistatic agent solution is coated onto the outer surface of the cathode ray tube depending on the added solvent. The drying rate of the antistatic agent solution coated film can be adjusted, and an antistatic film having desired characteristics can be obtained.
（実施例） 以下、この発明を実施例に基づいて説明する。(Example) Hereinafter, this invention will be explained based on examples.
陰極線管の帯電防止膜の形成は、先ずそのフェース外表
面を洗浄し、このフェース外表面を下向きにして回転支
持板に取付け、この回転支持板とともに回転しながらそ
のフェース外表面に帯電防止剤溶液をスプレィし、余剰
の帯電防止剤溶液を回転遠心力により除去して均一に塗
布する。その後、８０−１５０℃のホットエアで乾燥し
、ついで１５０〜２２０℃のホットエアで焼成すること
により得られる。To form an antistatic film on a cathode ray tube, first, the outer surface of the face is cleaned, and the face is mounted on a rotating support plate with the outer surface facing downward.While rotating with the rotating support plate, an antistatic agent solution is applied to the outer surface of the face. , and remove excess antistatic agent solution by rotating centrifugal force to apply it uniformly. Then, it is obtained by drying with hot air at 80-150°C and then firing with hot air at 150-220°C.
上記帯電防止剤溶液としては、エチルシリケートを帯電
防止剤、エチルアルコールを主溶媒として、そのエチル
アルコール溶液に、その主溶媒であるエチルアルコール
よりも高沸点のｌ−ブチルアルコール（沸点１１７．７
℃）、２−ブチルアルコール（沸点９９．５℃）、イソ
ブチルアルコール（沸点１０７．９℃）、イソプロピル
アルコール（沸点８２．３℃）、および低沸点のメチル
アルコール（沸点６４．７℃）などから選択された少な
くとも２種類のアルコールを、任意混合比で添加混合し
たものが用いられる。すなわち、塗布後の乾燥速度を遅
くする場合は、エチルアルコールを主溶媒としてこれに
高沸点アルコールを比較的多量に添加し、逆に乾燥速度
を速くする場合は、低沸点のメチルアルコールを比較的
多量に含む２種類以上のアルコールを添加する。The above antistatic agent solution uses ethyl silicate as an antistatic agent and ethyl alcohol as the main solvent, and adds l-butyl alcohol (boiling point 117.7
), 2-butyl alcohol (boiling point 99.5°C), isobutyl alcohol (boiling point 107.9°C), isopropyl alcohol (boiling point 82.3°C), and low-boiling methyl alcohol (boiling point 64.7°C). A mixture of at least two selected alcohols added at an arbitrary mixing ratio is used. In other words, if you want to slow down the drying speed after coating, use ethyl alcohol as the main solvent and add a relatively large amount of high-boiling point alcohol to it; conversely, if you want to speed up the drying speed, use relatively low-boiling point methyl alcohol. Add a large amount of two or more types of alcohol.
下記表に、エチルシリケートをエチルアルコールに容量
比でｌ：４の割合いで溶解した帯電防止剤溶液を原液と
し、この原液にイソプロピルアルコール（ＩＰＡと略記
）を容量比で１＝４の割合いで添加した場合、原液に１
−ブチルアルコール（１−ＢＡと略記）を容量比でｌ：
４の割合いで添加した場合および原液にイソプロピルア
ルコールと１−ブチルアルコールとを容量比で１：２：
２の割合いで添加した場合の試験結果を示す。In the table below, an antistatic agent solution in which ethyl silicate is dissolved in ethyl alcohol at a volume ratio of 1:4 is used as a stock solution, and isopropyl alcohol (abbreviated as IPA) is added to this stock solution at a volume ratio of 1:4. If so, add 1 to the stock solution.
-Butyl alcohol (abbreviated as 1-BA) in volume ratio: 1:
When adding isopropyl alcohol and 1-butyl alcohol at a ratio of 1:2 to the stock solution, the volume ratio is 1:2:
The test results when added at a ratio of 2 are shown.
表
この表における膜強度はＪＩＳ規格の鉛筆硬度５Ｈ〜９
１１よる引かき試験、膜抵抗値は高抵抗測定器での測定
結果、膜干渉色は視感判定による結果である。Table The film strength in this table is JIS standard pencil hardness 5H to 9.
11, the membrane resistance value is the result of measurement with a high resistance measuring device, and the membrane interference color is the result of visual judgment.
この試験結果かられかるように、エチルアルコールを主
溶媒とする原液に、その主溶媒とは沸点の異なる２種類
のアルコールを添加混合して、塗布後の乾燥速度を調整
したときに、膜強度、膜抵抗値などの膜特性および外観
品位を満足する帯電防止膜を形成することができる。As can be seen from this test result, when two types of alcohols with different boiling points from the main solvent are added and mixed to a stock solution whose main solvent is ethyl alcohol, and the drying speed after application is adjusted, the film strength is , it is possible to form an antistatic film that satisfies film properties such as film resistance and appearance quality.
［発明の効果コ
陰極線管の外表面に塗布する帯電防止剤溶液として、そ
の主溶媒とは沸点の異なる２種類以上の溶媒を適宜比率
で混合すると、塗布後の乾燥速度を調整して、陰極線管
製造工程のインチ・ソクスにより規制される所定の時間
内で乾燥することができ、かつ膜強度、膜抵抗値などの
膜特性、外観品位、長期信頼性などを満足する所要の帯
電防止膜を容易に形成することができる。[Effects of the Invention] If two or more solvents with different boiling points from the main solvent are mixed in an appropriate ratio as an antistatic agent solution to be applied to the outer surface of a cathode ray tube, the drying speed after application can be adjusted and the antistatic agent solution can be applied to the outer surface of a cathode ray tube. We will develop the required antistatic film that can dry within the specified time regulated by inch standards in the pipe manufacturing process, and that satisfies film properties such as film strength and film resistance, appearance quality, and long-term reliability. Can be easily formed.
Claims (1)
記外表面に帯電防止膜を形成する帯電防止形陰極線管の
製造方法において、 上記帯電防止剤溶液にこの帯電防止剤溶液の主溶媒とは
沸点の異なる２種類以上の溶媒を混合して上記帯電防止
剤溶液塗布後の乾燥速度を調整して上記陰極線管の外表
面に塗布することを特徴とする帯電防止形陰極線管の製
造方法。[Scope of Claims] A method for manufacturing an antistatic cathode ray tube in which an antistatic agent solution is applied to the outer surface of the cathode ray tube and dried to form an antistatic film on the outer surface, wherein the antistatic agent solution is charged with the antistatic agent solution. An antistatic method characterized in that two or more solvents having different boiling points from the main solvent of the antistatic agent solution are mixed together, the drying speed after application of the antistatic agent solution is adjusted, and the mixture is applied to the outer surface of the cathode ray tube. A manufacturing method for cathode ray tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16906589A JPH0332771A (en) | 1989-06-30 | 1989-06-30 | Production of antistatic cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16906589A JPH0332771A (en) | 1989-06-30 | 1989-06-30 | Production of antistatic cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332771A true JPH0332771A (en) | 1991-02-13 |
Family
ID=15879687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16906589A Pending JPH0332771A (en) | 1989-06-30 | 1989-06-30 | Production of antistatic cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006212589A (en) * | 2005-02-07 | 2006-08-17 | Seiko Epson Corp | Production method for composition, production method for electric optical apparatus and liquid drop delivery apparatus |
-
1989
- 1989-06-30 JP JP16906589A patent/JPH0332771A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006212589A (en) * | 2005-02-07 | 2006-08-17 | Seiko Epson Corp | Production method for composition, production method for electric optical apparatus and liquid drop delivery apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101304050B (en) | Paste for forming electrode of solar cell | |
| KR101352786B1 (en) | Paste for producing electrode of solar cell | |
| JP3541070B2 (en) | Automotive glass thick film conductor paste | |
| JPH0416505B2 (en) | ||
| JP2011503240A (en) | Electrode composition for offset printing, electrode manufacturing method using the same, and plasma display panel using the same | |
| CN101441904A (en) | Composition for electrodes and electrodes made using the same | |
| JPH0332771A (en) | Production of antistatic cathode-ray tube | |
| EP0008782B1 (en) | Process for providing overglaze for fired metallizations and ac plasma display panel comprising two overglazed substrates | |
| JP3425637B2 (en) | Dark transparent conductive film for electric field shielding | |
| US2707687A (en) | Method of forming luminescent coating | |
| CN100343938C (en) | Glass composite for coating electrode, glass paint for forming coated electrode, plasma display plate with it and its making process | |
| JP3673320B2 (en) | Pattern forming paste | |
| US3331777A (en) | Glass frits and enamels having esterified surfaces and their preparation | |
| US2921863A (en) | Settling of luminescent screens | |
| JPH11209147A (en) | Dielectric paste for plasma display panel | |
| CN115433485A (en) | High-insulation electrophoretic layer and preparation method and application thereof | |
| JPH08111573A (en) | Thick film paste | |
| JP3338086B2 (en) | Paste for phosphor screen printing | |
| KR19980013749A (en) | Composition of heater coating material of cathode ray tube electron gun | |
| CN116497425A (en) | Solution formula of electrophoresis alumina ceramic powder for surface of metal wire material | |
| JPH09111158A (en) | Coating composition | |
| JPS5927964A (en) | Paste for forming transparent film and transparent film | |
| JPS5927961A (en) | Paste for forming transparent film and transparent film | |
| JPH02243536A (en) | Glass composition for insulating coating | |
| JP2002324484A (en) | Method for manufacturing plasma display panel |